CN108970410A - A kind of intelligence ultrafilter and its control method - Google Patents

Abstract

The invention provides an intelligent ultrafiltration machine and a control method thereof. The intelligent ultrafiltration machine is used to filter the solution in the solution tank, and includes a housing structure with a housing cavity inside and a filtering system placed in the housing cavity. The filtration system includes: a control system, preset conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode, the control system is connected with a plurality of pneumatic valves installed on the pipeline, and is used to control the filtration system to enter different Working mode; the filter membrane group is connected to the solution tank through the pipeline, which is used for conventional filtration of the solution; the carbon powder bucket is connected to the filter membrane group through the pipeline, and is used for carbon treatment and filtration; the cleaning bucket is connected to the filter membrane group through the pipeline , for automatically cleaning the filter membrane group when the automatic cleaning mode is activated. The intelligent ultrafiltration machine and the control method provided by the present invention realize the intelligent control of solution filtration, and save labor costs while improving efficiency.

Description

An intelligent ultrafiltration machine and its control method

technical field

The invention relates to the technical field of filtration, in particular to an intelligent ultrafiltration machine and a control method thereof.

Background technique

Electroplating enterprises often produce a lot of defective products in the production process, a large part of which is due to the continuous introduction of new production workpieces into the electroplating solution tank during the production process, which continuously brings in metal impurities and air The dust, metal dropped from the hanger, and anode slime generated during the anode conduction process are mixed into the electroplating solution tank, so that the electroplating solution contains a large amount of metal impurities; secondly, during the production process, the electroplating solution itself is constantly produced. Organic impurities, these metal impurities and organic impurities will cause bright spots, scratches or uneven plating on the electroplated products, so a solution with high purity is required to produce high-quality products.

At present, the common practice in the market is to improve the purity of the electroplating solution through a solution filter. However, the existing solution filters are all manually operated, which is neither safe nor efficient. Filtration consumables; and the filtration precision of the existing filter is low, and it is easy to leak impurities and activated carbon powder, and the filtration effect is far from meeting the relevant requirements.

Contents of the invention

The present invention aims at the above-mentioned shortcomings of the traditional solution filter, and provides an intelligent ultrafiltration machine and its control method, which realizes the whole process of intelligent operation without personnel tracking, and achieves the goals of energy saving, environmental protection, safety and high efficiency.

The technical solution of the present invention to solve the above technical problems is, on the one hand, to provide an intelligent ultrafiltration machine for filtering the solution in the solution tank, the intelligent ultrafiltration machine includes a shell structure with a housing cavity inside and a set The filter system in the accommodating chamber is characterized in that the filter system includes:

The control system is preset with a variety of working modes, including conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode; the control system is connected with a plurality of pneumatic valves installed on the pipeline through the pneumatic system, and is used to control the pneumatic The opening or closing of the valve controls the filter system into different working modes;

The filter membrane group is provided with a plurality of reserved ports of the membrane group, and the filter membrane group is connected to the solution tank through the reserved ports of the membrane group through pipelines, and is used for performing conventional filtration on the solution when the conventional filtration mode is started;

The carbon powder bucket is connected to the filter membrane group through a pipeline through the reserved port of the membrane group, and is used to perform carbon treatment and filtration on the filter membrane group when the carbon treatment filtration mode is started;

The cleaning bucket is connected to the filter membrane group through a pipeline through the reserved port of the membrane group, and is used for automatically cleaning the filter membrane group when the automatic cleaning mode is started.

In the above-mentioned intelligent ultrafiltration machine of the present invention, the intelligent ultrafiltration machine also includes a pressure sensor installed on the pipeline for monitoring the pipeline pressure, a leakage prevention device for monitoring pipeline leakage, and a pressure sensor for monitoring pipeline temperature. temperature sensor;

The control system is electrically connected to the pressure sensor, and is used to control the filter system to enter the automatic cleaning mode when the pressure value of the pipeline reaches a preset pressure value;

The control system is electrically connected to the anti-leakage device, and is used to close all pneumatic valves and issue an alarm when receiving the leakage signal sent by the anti-leakage device;

The control system is electrically connected to the temperature sensor, and is used for receiving the temperature value of the pipeline and issuing an alarm when the temperature value of the pipeline exceeds a preset temperature value.

In the above-mentioned intelligent ultrafiltration machine of the present invention, the water production port of the filtration system is connected with a water production port diversion device, and the water production port diversion device includes a first diversion pipe and a second diversion pipe sleeved outside the first diversion pipe One end of the first shunt pipe is connected to the water production port of the filtration system, the other end of the first shunt pipe extends into the second shunt pipe and is suspended and closed, and there are multiple openings on the first shunt pipe A split port located in the second split tube is used to split the solution in the first split tube into the second split tube, and the second split tube is used to discharge the solution into the solution tank.

In the above-mentioned intelligent ultrafiltration machine of the present invention, the sewage outlet of the filtration system is connected with a sewage outlet diversion device, and the sewage outlet diversion device includes a first diversion pipe, and is installed in the first diversion pipe at intervals The second diversion pipe, one end of the first diversion pipe is connected to the sewage outlet of the filtration system, and the other end is used to discharge the sewage to a designated position; the first diversion pipe is arranged in a stepped shape to form a radial An extended radial extension; one end of the second flow guide tube abuts against the radial extension, and the other end of the second flow guide tube extends into the first flow guide tube and is suspended;

The drainage outlet diversion device also includes a one-way valve installed at the end of the first drainage pipe close to the drainage outlet, and the one-way valve is used to prevent the solution from flowing backward.

In the above-mentioned intelligent ultrafiltration machine of the present invention, the number of reserved ports of the membrane group is 4, including the first reserved port and the fourth reserved port respectively arranged relatively at the lower end and the upper end of the filter membrane group , and the second reserved port and the third reserved port respectively oppositely arranged on the side wall of the filter membrane group;

The water production port of the solution tank is connected to the first reserved port through the pipeline, water inlet pneumatic valve, pipeline, circulation pump and pipeline in sequence; the second reserved port is connected to the first reserved port through the pipeline, the first water production pneumatic valve, the pipeline connected to the water inlet of the solution tank; the second reserved port is connected to the compressed air inlet through the pipeline and the first gas backwash pneumatic valve in turn; the second reserved port is connected to the compressed air inlet through the pipeline and the first water supply pneumatic The valve is connected to the tap water/pure water inlet; the second reserved port is connected to the top reserved port of the cleaning bucket through the pipeline, the medicine washing reverse return pneumatic valve, and the pipeline; the fourth reserved port is sequentially Connect to the top reserved port of the cleaning barrel after passing through the pipeline, the medicine washing forward return pneumatic valve, and the pipe; the fourth reserved port is connected to the top of the toner barrel through the pipeline, the toner bucket water inlet pneumatic valve, and the pipeline in turn. The first top reserved port; the fourth reserved port is connected to the sewage outlet after passing through the pipeline and the exhaust pneumatic valve; the third reserved port is connected to the carbon dioxide through the pipeline, the second water production pneumatic valve and the pipeline The second top reserved opening of the powder bucket; the first reserved opening is connected to the bottom water outlet of the toner bucket after passing through the pipeline, the circulation pump, the pipeline, the toner bucket water outlet pneumatic valve, and the pipeline; the first reserved The reserved opening is connected to the sewage outlet after passing through the pipeline and the sewage pneumatic valve in turn; the first reserved opening is connected to the bottom outlet of the cleaning bucket through the pipeline, the medicine washing water inlet valve, the pipeline, the cleaning pump and the pipeline in turn; the cleaning bucket The outlet at the bottom of the bottom is connected to the cleaning agent suction port after the cleaning agent suction valve; the fourth reserved port is connected to the tap water/pure water inlet through the pipeline and the second water supply pneumatic valve in turn; the first reserved port Connect to the compressed air inlet through the pipeline, the second gas backwash pneumatic valve in turn; the second reserved port is connected to the second top reserved port of the toner bucket through the pipeline, the membrane exhaust pneumatic valve and the pipeline in turn .

In the above-mentioned intelligent ultrafiltration machine of the present invention, the temperature sensor is installed on the outer wall of the pipeline between the first reserved port and the circulation pump; the pressure sensor is installed on the first reserved port and the gas backwash on the pipe between the pneumatic valves.

In the above-mentioned intelligent ultrafiltration machine of the present invention, the anti-leakage device includes: an anti-leakage pipeline installed vertically on the pipeline between the sewage outlet of the filtration system and the sewage pneumatic valve; a magnetic floating ball arranged on the anti-leakage pipeline In the leakage pipeline, it can float up and down along the anti-leakage pipeline; the electromagnetic induction switch is installed outside the anti-leakage pipeline, and the electromagnetic induction switch is electrically connected to the control system, and is used to float and contact the magnetic floating ball The leakage signal is sent out when the electromagnetic induction switches.

On the other hand, a control method using the above-mentioned intelligent ultrafiltration machine is also provided, including the following steps:

S10, start the conventional filtration mode, connect the filter membrane group to the solution tank through the reserved port of the membrane group, and use the filter membrane group to perform conventional filtration on the solution in the solution tank;

S20, start the carbon treatment and filtration mode, connect the toner bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the toner bucket to perform carbon treatment and filtration on the filter membrane group;

S30. When the real-time working condition of the pipeline reaches the preset value, start the automatic cleaning mode, connect the cleaning bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the cleaning bucket to automatically clean the filter membrane group;

S40, emptying the air in the filter membrane group;

S50. Re-enter the regular filtering mode.

In the above-mentioned control method of the intelligent ultrafiltration machine of the present invention, the real-time working condition of the pipeline includes pipeline pressure and the filtration time of the conventional filtration mode, and the preset value includes a preset pressure value corresponding to the pipeline pressure, and The preset filter time corresponding to the filter time of normal filter mode;

If the carbon treatment filtration mode is not activated, the pipeline pressure reaches the preset pressure value or the filtration time of the conventional filtration mode reaches the preset filtration time, step S30 specifically includes:

S31. Pressing the solution in the filter membrane group back into the toner bucket;

S32, cleaning the filter membrane group with pure water or tap water and compressed air;

S33. Empty the filter membrane group, and perform secondary cleaning on the filter membrane group;

S34, replenishing water to the cleaning bucket;

S35. Cleaning the filter membrane group with a medicament;

S36. Empty the liquid medicine in the filter membrane group after the medicine washing is completed;

S37. Use pure water/tap water to clean the residual medicinal lotion in the filter membrane group;

S38. Empty the filter membrane group.

In the above-mentioned control method of the intelligent ultrafiltration machine of the present invention, if the pipeline pressure reaches the preset pressure value or the filter time of the conventional filter mode reaches the preset filter time when the carbon treatment filter mode is started, step S31 Previously also included:

S310. Pump the solution in the toner bucket back to the solution tank through the filter membrane group through the circulation pump.

Implementation of an intelligent ultrafiltration machine provided by the present invention and its control method has the following beneficial effects:

The intelligent ultrafiltration machine presets conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode, which realizes full intelligent control, does not require personnel tracking, is convenient and quick to use, improves efficiency and saves labor costs at the same time; the conventional filtration mode adopts The filter membrane group with ultra-precision pore size filters the solution, which can greatly improve the filtration effect of the solution and ensure the yield of electroplating products; the carbon treatment filtration mode can fully carbon filter the filter membrane group to reduce organic impurities. Purpose: The automatic cleaning mode can effectively clean the pollutants and impurities in the filter membrane group, and there is no need to disassemble the filter membrane group during the cleaning process, so as to achieve the goals of high efficiency, safety, environmental protection and energy saving.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the external structure schematic diagram of the intelligent ultrafiltration machine provided by the present invention;

Fig. 2 is the connection structure schematic diagram of filter system provided by the present invention;

Fig. 3 is a schematic plan view of the anti-leakage device provided by the present invention;

4 is a schematic plan view of the internal structure of the filter membrane group provided by the present invention;

Fig. 5 is a schematic structural view of the water production port diversion device provided by the present invention;

Fig. 6 is a schematic structural view of the sewage outlet diversion device provided by the present invention;

Description of reference signs

00. Solution tank; 01. Filtration membrane group; 02. Toner bucket; 03. Cleaning bucket; 04. Compressed air inlet; 05. Pure water inlet; 06. Sewage discharge outlet; 07. Circulation pump; 08. Cleaning Pump; 09. Pressure sensor; 10. Pipeline; 11. Pipeline; 12. Pipeline; 13. Pipeline; 14. Pipeline; 15. Pipeline; 16. Pipeline; 17. Pipeline; 18. Pipeline; 19. Pipeline; 20. Pipeline ;21, pipeline; 22, pipeline; 23, pipeline; PV01, water inlet pneumatic valve; PV02, first water production pneumatic valve; PV03, second water production pneumatic valve; PV04, first gas backwash pneumatic valve; PV05, The first water replenishment pneumatic valve; PV06, blowdown pneumatic valve; PV07, medicine washing water inlet pneumatic valve; PV08, medicine washing reverse backflow pneumatic valve; PV09, medicine washing forward backflow pneumatic valve; PV10, toner bucket water inlet pneumatic valve ;PV11, toner bucket water outlet pneumatic valve; PV12, exhaust pneumatic valve; PV13, cleaning agent suction pneumatic valve; PV14, second water replenishment pneumatic valve; PV15, second gas backwash pneumatic valve; PV16, membrane exhaust pneumatic valve ; 31, the first reserved port; 32, the second reserved port; 33, the third reserved port; 34, the fourth reserved port.

Detailed ways

In order to enable those skilled in the art to understand the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the external structure of an intelligent ultrafiltration machine provided by a preferred embodiment of the present invention. A filtration system for filtering solutions.

The four sides of the housing structure 100 are provided with cabinet doors 110 that are detachably installed on the housing structure 100, so as to facilitate maintenance of the equipment; the bottom of the housing structure 100 is also provided with an installation groove that communicates with the accommodating cavity 150,

In this embodiment, the housing structure 100 is a three-dimensional structure with a length of 1360 mm, a width of 750 mm, and a height of 1870 mm. The overall structure is simple and practical, with a high degree of standardization, which is convenient for processing and manufacturing. Of course, those skilled in the art can set the size of the housing structure by themselves according to the actual situation, which is not specifically limited in the present invention.

The filtering system also includes a PLC control system and a touch screen 140 arranged on the housing structure 100 . The control system is preset with a variety of working modes, including conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode; the control system is connected with a plurality of pneumatic valves installed on the pipeline through the pneumatic The system controls the opening or closing of the pneumatic valve, thereby controlling the flow of the solution on the pipeline, so that the filtration system enters into different working modes.

In this embodiment, the man-machine operation interface of the PLC control system is displayed through the touch screen 140, and engineers and technicians pre-set a variety of work modes on the control system. The user only needs to select the corresponding work mode through the touch screen, and the remaining actions are controlled by the control system. The system can be completed automatically, which greatly reduces the chance of human error.

Further, as shown in Figure 2, the filtration system is connected to a solution tank 00 for containing the solution to be filtered through a pipeline, and a water production port and a water inlet are provided on the solution tank 00;

The filtration system includes a filter membrane group 01, a toner bucket 02 and a cleaning bucket 03 connected to each other through pipelines. The filter membrane group 01 is provided with four reserved openings for the membrane group. And the first reserved port 31 and the fourth reserved port 34 at the upper end, and the second reserved port 32 and the third reserved port 33 which are oppositely arranged on the side wall of the filter membrane group 01; the top of the toner bucket 02 is arranged There are two reserved openings, the bottom of the toner bucket 02 is provided with a water outlet; the cleaning bucket 03 has a top outlet and a bottom outlet.

The filter membrane group 01 is connected to the solution tank 00 through the reserved port of the membrane group through the pipeline, and is used for conventional filtration of the solution when the conventional filtration mode is started; the toner bucket 02 is connected to the filter membrane through the pipeline through the reserved port of the membrane group Group 01 is used to perform carbon treatment and filtration on the filter membrane group 01 when the user adds activated carbon powder and starts the carbon treatment and filtration mode; the cleaning bucket 03 is connected to the filter membrane group 01 through a pipeline through the reserved port of the membrane group, and is used for When the real-time working condition of the pipeline reaches the preset value, the filter membrane group 01 is automatically cleaned.

Specifically, the water production port of the solution tank 00 is connected to the first reserved port 31 through the pipeline 10, the water inlet pneumatic valve PV01, the pipeline 11, the circulating pump 07, and the pipeline 12 in sequence;

The second reserved port 32 is connected to the water inlet of the solution tank 00 through the pipeline 18, the first water production pneumatic valve PV02, and the pipeline 17 in sequence;

The second reserved port 32 is connected to the compressed air inlet 04 through the pipeline 18 and the first gas backwash pneumatic valve PV04 in sequence;

The second reserved port 32 is connected to the tap water/pure water inlet 05 through the pipeline 18 and the first water supply pneumatic valve PV05 in sequence;

The second reserved port 32 is connected to the top reserved port of the cleaning bucket 03 through the pipeline 18, the medicine washing reverse backflow pneumatic valve PV08, and the pipeline 20 in sequence;

The fourth reserved port 34 of the filter membrane group 01 is connected to the top reserved port of the cleaning bucket 03 through the pipeline 19, the medicine washing forward return pneumatic valve PV09, and the pipeline 20 in sequence;

The fourth reserved port 34 is connected to the first top reserved port of the toner barrel 02 through the pipeline 19, the toner bucket water inlet valve PV10, and the pipeline 21 in sequence;

The fourth reserved port 34 is connected to the sewage outlet 06 through the pipeline 19 and the exhaust pneumatic valve PV06 in sequence;

The third reserved port 33 is connected to the second top reserved port of the toner bucket 02 through the pipeline 16, the second water-producing pneumatic valve PV03, and the pipeline 23 in sequence;

The first reserved port 31 is connected to the bottom water outlet of the toner bucket 02 through the pipeline 12, the circulation pump 07, the pipeline 13, the toner bucket water outlet pneumatic valve PV11, and the pipeline 22 in sequence;

The first reserved port 31 is connected to the sewage outlet 06 after passing through the pipeline 12 and the sewage pneumatic valve PV06 in sequence;

The first reserved port 31 is connected to the bottom outlet of the cleaning bucket 03 through the pipeline 12, the medicine washing water inlet pneumatic valve PV07, the pipeline 14, the cleaning pump 08, and the pipeline 15 in sequence;

The outlet at the bottom of the cleaning bucket 03 is connected to the cleaning agent suction port 25 through the suction cleaning agent pneumatic valve PV13;

The fourth reserved port 34 is connected to the tap water/pure water inlet 05 through the pipeline 19 and the second water supply pneumatic valve PV14 in sequence;

The first reserved port 31 is connected to the compressed air inlet 24 through the pipeline 12 and the second gas backwash pneumatic valve PV15 in sequence;

The second reserved port 32 is connected to the second reserved port at the top of the toner bucket 02 through the pipeline 18 , the membrane exhaust valve PV16 and the pipeline 23 in sequence.

The intelligent ultrafiltration machine provided by the present invention also includes a toner bucket liquid level monitoring device 020 and a cleaning bucket liquid level device 030 respectively communicated with the toner bucket 02 and the cleaning bucket 03;

The toner bucket liquid level monitoring device 020 includes a toner bucket liquid level monitoring tube 021 installed on the housing structure 100 in the vertical direction, and a magnetic toner bucket liquid level monitoring tube 021 arranged in the toner bucket liquid level monitoring tube 021 The floating ball 022, and the toner bucket liquid level magnetic sensor 023 installed on the set height of the toner bucket liquid level monitoring tube 021, the toner bucket liquid level magnetic sensor 023 is electrically connected to the control system; The bottom of the level monitoring pipe 021 is connected to the toner bucket 02, so that the water level in the toner bucket liquid level monitoring pipe 021 and the water level in the toner bucket 02 are kept at the same level.

In the initial stage of the carbon treatment and filtration mode, the toner bucket 02 only replenishes water, and the water level in the toner bucket liquid level monitoring tube 021 also rises synchronously and drives the toner bucket liquid level floating ball 022 to rise. When the ball 022 rises to the position of the toner bucket liquid level magnetic sensor 023, the toner bucket liquid level magnetic sensor 023 senses that the water level in the toner bucket 02 has reached the set height, and sends a signal that the toner bucket water level is complete. The control system, the control system controls the relevant pneumatic valves to open to form a carbon treatment and filtration circuit that communicates with the filter membrane group 01 and the toner bucket 02 .

The cleaning bucket liquid level device 030 includes a cleaning bucket liquid level monitoring tube (not shown) installed on the housing structure 100 in the vertical direction, a magnetic cleaning bucket liquid level float arranged in the cleaning bucket liquid level monitoring tube, And the cleaning bucket liquid level magnetic sensor installed on the set height of the cleaning bucket liquid level monitoring tube, the cleaning bucket liquid level magnetic sensor is electrically connected to the control system; the bottom of the cleaning bucket liquid level monitoring tube is connected to the cleaning bucket 03, so as to Keep the water level of the cleaning bucket liquid level monitoring pipe and the water level in the cleaning bucket 03 at the same level.

In the initial stage of the automatic cleaning mode, the cleaning bucket 03 only replenishes water, and the water level in the cleaning bucket liquid level monitoring tube also rises synchronously and drives the cleaning bucket liquid level float to rise. When the cleaning bucket liquid level float rises to the cleaning bucket liquid level magnetic When the position of the sensor is reached, the liquid level magnetic sensor of the cleaning bucket senses that the water level in the cleaning bucket 03 has reached the set height, and sends a signal of completion of the water level of the cleaning bucket to the control system, and the control system controls the relevant pneumatic valve to open, An automatic cleaning circuit connecting the filter membrane group 01 and the cleaning bucket 03 is formed.

The intelligent ultrafiltration machine provided by the present invention also includes a pressure sensor 09 for monitoring pipeline pressure, a leakage prevention device 200 for monitoring pipeline leakage, and a temperature sensor 26 for monitoring pipeline temperature respectively installed on the pipeline; specifically, The temperature sensor 26 is installed on the outer wall of the pipeline 12 between the first reserved port 31 and the circulation pump 07, and the pressure sensor 09 is installed on the pipeline between the first reserved port 31 and the gas backwash pneumatic valve PV15 ; The anti-leakage device 200 is installed on the pipeline between the sewage outlet 06 and the sewage pneumatic valve PV06.

The control system is electrically connected to the pressure sensor 09, which is used to receive the pipeline pressure value and when the pipeline pressure value reaches the preset pressure value, control the filtration system to enter the automatic cleaning mode, and automatically clean the filter membrane group, eliminating the need for manual cleaning The trouble, the filter consumables can also be used repeatedly for a long time. In another embodiment of the present invention, the control system is also provided with a preset filtering time, and when the filtering time of the conventional filtering mode reaches the preset filtering time, the control system controls the filtering system to enter the automatic cleaning mode.

The control system is electrically connected to the temperature sensor 24 for receiving the pipeline temperature value sent by the temperature sensor 24, and sends an alarm when the pipeline temperature value exceeds the preset temperature value, so as to avoid the rise of the solution temperature during the solution filtration process and cause the staff to The uninformed situation occurs, thereby avoiding the occurrence of pipe burst, leakage, solution waste and equipment damage caused by excessive solution temperature.

Further, as shown in FIG. 3 , the anti-leakage device 200 includes an anti-leakage pipeline 210 vertically installed on the pipeline between the sewage outlet 06 of the filtration system and the sewage pneumatic valve PV06, and the magnetic anti-leakage pipeline 210 arranged in the anti-leakage pipeline 210 The floating ball 220, and the electromagnetic induction switch 230 installed on the top of the anti-leakage pipeline 210, the electromagnetic induction switch 230 is electrically connected to the control system.

The magnetic floating ball 220 can float up and down along the anti-leakage pipeline 210. When the filter system is filtering in the conventional filtration mode and the carbon treatment filtration mode, the pipeline between the sewage outlet 06 of the filtration system and the sewage pneumatic valve PV06 is in a closed state. If the filter system leaks, a large amount of abnormal water will flow into the pipeline connected to the sewage outlet, causing the water level in the leak-proof pipeline 210 to rise, and the magnetic float 220 will float up and touch the electromagnetic induction switch 230, and the electromagnetic induction switch 230 will send out The leakage signal is sent to the control system, which sends an alarm and controls to close all valves to prevent further leakage of the filtration system.

In this embodiment, the intelligent ultrafiltration machine also includes an alarm 160 installed above the housing structure 100, the control system is electrically connected to the alarm 160, and is used to send an alarm when the temperature value of the pipeline exceeds a preset temperature value or when a leak occurs , to remind the relevant staff.

Further, as shown in FIG. 4 , the filter membrane group 01 provided in this embodiment includes a filter housing and a plurality of columnar nano-membrane groups 011 arranged in the filter housing, and the nano-membrane group 011 is fitted with The nano-membrane with a pore size of 0.1μm-20μm has excellent filtration effect. The nano-membrane group 011 is installed in the filter housing without disassembly and assembly, avoiding personnel contact with dangerous solutions, and can be used repeatedly for many years.

Further, as shown in FIG. 5(A) and FIG. 5(B), the water production port of the filtration system, that is, the water production port of the solution tank 00 is connected with a water production port shunt device for filtering the filtration membrane group The final solution is discharged into the solution tank; the water production outlet diversion device includes a first diversion pipe 121 and a second diversion pipe 122 sleeved outside the first diversion pipe 121, and one end of the first diversion pipe 121 is connected to the filtration system The other end of the first shunt pipe 121 extends into the second shunt pipe 122 and is suspended and closed; the first shunt pipe 121 is also provided with a plurality of shunt ports 123 located in the second shunt pipe 122, so as to The solution in the first shunt pipe 121 is divided into small streams and flows into the second shunt pipe 122, so as to avoid the impact on the production workpiece due to the concentration of water produced by the water production port and the excessive water flow, and ensure the yield of the product.

Further, as shown in Figure 6(A) and Figure 6(B), the sewage outlet 06 of the filtration system is connected with a sewage outlet guide device for discharging sewage to a designated location; the sewage outlet guide device Including a first guide tube 131, and a second guide tube 132 installed at intervals in the first guide tube 131, the first guide tube 131 is connected to the sewage outlet 06 of the filter system (see Figure 3 for details), the second A flow guide tube 131 is arranged in a stepped shape with a radially extending portion 133, one end of the second flow guide tube 132 abuts against the radially extending portion 133, and the other end of the second flow guide tube 132 extends to the first flow guide tube 131 It is set inside and suspended in the air to avoid the splashed solution polluting the nearby solution tank during sewage discharge, and also protects the surrounding staff; the sewage outlet diversion device also includes the first guide pipe 131 installed near the sewage outlet. A one-way valve 134 at one end, the one-way valve 134 is used to prevent the solution from flowing backward.

This embodiment also provides a control method for an intelligent ultrafiltration machine, comprising the following steps:

S10, start the conventional filtration mode, connect the filter membrane group to the solution tank through the reserved port of the membrane group, and use the filter membrane group to perform conventional filtration on the solution in the solution tank;

S20, start the carbon treatment and filtration mode, connect the toner bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the toner bucket to perform carbon treatment and filtration on the filter membrane group;

S30. When the real-time working condition of the pipeline reaches the preset value, start the automatic cleaning mode, connect the cleaning bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the cleaning bucket to automatically clean the filter membrane group;

S40, emptying the air in the filter membrane group;

S50. Re-enter the regular filtering mode.

Specifically, when the conventional filtration mode is started, the control system controls the water inlet pneumatic valve PV01, the circulation pump 07, and the first water production pneumatic valve PV02 to open, and controls all other pneumatic valves to close to form a connection between the filter membrane group 01 and the solution. The filtration circuit of the tank 00 is driven by the circulation pump 07, so that the solution in the solution tank 00 is continuously filtered through the filter membrane group. When the carbon treatment and filtration mode is started, the control system controls the water inlet pneumatic valve PV01, the circulation pump 07, the first water production pneumatic valve PV02, the toner bucket water inlet pneumatic valve PV10, the toner bucket water outlet pneumatic valve PV11 to open, and All other pneumatic valves are controlled to close to form a carbon treatment circuit connecting the filter membrane group 01 and the toner bucket 02, and the circulation pump 07 is used to drive the solution so that the solution is continuously circulated between the filter membrane group 01 and the toner bucket 02. The filter membrane group 01 is used for activated carbon adsorption treatment to eliminate the organic matter or non-metallic impurities mixed in the filter membrane group.

Detecting the real-time working condition of the pipeline in step S10 includes detecting the pipeline pressure and recording the filtration time of the conventional filtration mode, the preset value includes a preset pressure value corresponding to the pipeline pressure, and a preset value corresponding to the filtration time of the conventional filtration mode filter time;

If the carbon treatment filtration mode is not started, the pipeline pressure reaches the preset pressure value or the filtration time of the conventional filtration mode reaches the preset filtration time, the automatic cleaning step, that is, step S30, is as follows:

S31. Press the solution in the filter membrane group 01 back into the toner bucket 02; specifically, the control system controls to open the second water production pneumatic valve PV03 and the second gas backwash pneumatic valve PV15, and use the compressed air supplied by the compressed air inlet 24 The air presses the solution in the filter membrane group 01 back to the toner bucket 02 to reduce the waste of the solution;

S32. Use pure water or tap water and compressed air to clean the filter membrane group positively and negatively; specifically, the control system first controls to open the first water supply pneumatic valve PV05 and the exhaust pneumatic valve PV12, and fill the filter membrane group 01 with pure water or Tap water, then close the first water supply pneumatic valve PV05 and exhaust pneumatic valve PV12 to stop water supply, wherein the water supply time of the filter membrane group 01 is controlled by the water supply time preset by the control system; then open the first air backwash pneumatic valve PV04, Perform water-air mixed cleaning on the filter membrane group 01;

S33. Empty the filter membrane group, and perform secondary cleaning on the filter membrane group; specifically, the control system controls to open the first gas backwash pneumatic valve PV04, and use compressed air to filter the sewage impurities in the filter membrane group 01 Discharge through sewage outlet 06; when cleaning the filter membrane group for the second time, control the opening of the second water replenishment pneumatic valve PV14 and sewage discharge pneumatic valve PV06 to flush the filter membrane group with water, then close the second water replenishment pneumatic valve PV14, and open the gas backwash pneumatic valve. The valve PV04 uses compressed air to discharge the sewage impurities in the filter membrane group 01 through the sewage outlet 06, and completes the secondary water-vapor mixed cleaning of the filter membrane group;

S34. Supplement water to the cleaning bucket; specifically, the control system controls to open the water supply pneumatic valve PV05, the medicine washing forward backflow pneumatic valve PV09, and the medicine washing reverse backflow pneumatic valve PV08 to fill up the filter membrane group 01 and the cleaning bucket 03 Pure water or tap water; during the water replenishment process, the liquid level of the cleaning bucket can be monitored through the above-mentioned cleaning bucket liquid level device 030 to see if it meets the requirements;

S35. Thoroughly clean the filter membrane group with medicament; specifically, the control system controls to open the medicine washing reverse backflow pneumatic valve PV08, the medicine washing forward backflow pneumatic valve PV09, the medicine washing water inlet pneumatic valve PV07, the cleaning pump 08, the suction The medicine pneumatic valve PV13 forms a medicine washing circuit connecting the cleaning tank 03 and the filter membrane group 01, and continuously performs medicine washing on the filter membrane group 01 under the drive of the cleaning pump 08; among them, by opening the medicine suction pneumatic valve PV13, the spare The cleaning agent is extracted into the cleaning barrel 03, so that the filter membrane group is washed with the agent in the cleaning barrel 03;

S36. Empty the liquid medicine in the filter membrane group after the medicine washing is completed; specifically, the control system controls to open the blowdown pneumatic valve PV06, and controls the first gas backwash pneumatic valve PV04 and the second gas backwash pneumatic valve PV15 alternately Open it, and discharge the sewage, impurities and chemicals in the filter membrane group 01;

S37. Use pure water/tap water to clean the residual medicinal lotion in the filter membrane group; specifically, the control system controls to open the water supply pneumatic valve PV05 and the exhaust pneumatic valve PV12, and fill the filter membrane group 01 with pure water/ Tap water, then close the water replenishment pneumatic valve PV05, open the air backwash pneumatic valve PV04, and perform water-air mixed flushing on the filter membrane group;

S38. Empty the filter membrane group; specifically, the control system controls to open the sewage discharge pneumatic valve PV06 and the air backwash pneumatic valve PV04, and use compressed air to discharge the sewage, impurities and residual agents in the filter membrane group 01 out of the filter membrane group 01.

It should be noted that the present invention utilizes the cleaning tank 03 to extract the cleaning agent to wash the filter membrane group, which can effectively clean the pollutants, impurities, organic matter, anode slime and carbon powder in the filter membrane group, and the Between washing and after washing with medicine, multiple filter membrane groups should be mixed with water and vapor for multiple times of cleaning, which can completely remove the drug residue in the filter membrane group and prevent the residual drug from polluting the solution tank.

The intelligent ultrafiltration machine provided by the present invention also includes steps after the automatic cleaning of the filter membrane group is completed:

S40. Evacuate the air in the filter membrane group; specifically, the control system controls to open the water inlet pneumatic valve PV01, the membrane exhaust pneumatic valve PV16, and the circulation pump 07, and uses the driving force of the circulation pump 07 to filter the membrane group 01 The air in the air is emptied; among them, the control system presets the closing time of the membrane exhaust pneumatic valve PV16. The group air is automatically exhausted, enter the steps:

S50, re-enter the conventional filtration mode; specifically, it is necessary to open the first water production pneumatic valve PV02 while closing the membrane exhaust pneumatic valve PV16 to form a filtration circuit connecting the filtration membrane group 01 and the solution tank 00, and pass through the circulation The pump 07 is driven so that the solution in the solution tank 00 is continuously filtered through the filter membrane group.

It should be noted that, after the automatic cleaning of the filter membrane group is completed, the present invention automatically enters the next conventional filtration mode, and the air in the filter membrane group is emptied, that is, step S40 is added between step S30 and step S50, which can avoid When the solution tank is reconnected to the filter membrane group after automatic cleaning, the air in the filter membrane group enters the solution tank and causes the solution to tumble, which affects the production of the product.

On the other hand, if the pipeline pressure reaches the preset pressure value or the filtration time of the conventional filtration mode reaches the preset filtration time when the carbon treatment filtration mode is started, then step S31 also includes:

S310. Pump the solution in the toner barrel back to the solution tank through the filter membrane group through the circulation pump; specifically, the control system controls to open the toner barrel water outlet pneumatic valve PV11, the circulation pump 07, and the first water production pneumatic valve. The valve PV02 draws the remaining solution in the toner bucket 02 and filter membrane group 01 back into the solution tank 00, which can reduce the waste of solution and achieve the purpose of energy saving and environmental protection.

The above is the control method of the conventional filtration mode, the carbon treatment filtration mode and the automatic cleaning mode of the intelligent ultrafiltration machine provided in this embodiment. Those skilled in the art can manually start the conventional filtration mode or the carbon treatment filtration through the touch screen on the shell structure. Mode, automatic cleaning mode automatically starts according to the pipeline conditions, easy to operate and rich in functions. It should be noted that those skilled in the art can also reversely assemble the filter membrane group, so that the solution can be filtered by means of external pressure filtration to meet different filtration requirements, all of which are within the protection scope of the present invention ,No longer.

In summary, the intelligent ultrafiltration machine and its control method provided by the present invention have the following beneficial effects:

(1) The intelligent ultrafiltration machine adopts an ultra-precision pore-diameter filter membrane group to perform internal pressure filtration on the solution, and the filtering effect is good, which can ensure the yield rate of electroplating products; and the intelligent ultrafiltration machine presets an automatic cleaning mode, It can effectively clean the pollutants, impurities, organic matter, etc. in the filter membrane group, and restore the smooth flow of the filter membrane group. During the cleaning process, there is no need to disassemble the filter membrane group, which saves the cost of replacing filter elements and human resource costs, and achieves high efficiency. , safety, environmental protection and energy saving purposes;

(2) The intelligent ultrafiltration machine realizes full intelligent control through the control system, presets conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode, does not need personnel tracking, is convenient and quick to use, and saves labor costs while improving efficiency;

(3) The pipes of the intelligent ultrafiltration machine are combined scientifically and have a high degree of integration. At the same time, dual protection of temperature monitoring and leakage monitoring is provided, and the safety performance is high.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. an intelligent ultrafiltration machine, for filtering the solution in the solution tank, comprising a housing structure with an accommodating cavity inside and a filter system placed in the accommodating cavity, characterized in that the filtering system comprises: The control system is preset with a variety of working modes, including conventional filtration mode, carbon treatment filtration mode and automatic cleaning mode; the control system is connected with a plurality of pneumatic valves installed on the pipeline through the pneumatic system, and is used to control the pneumatic The opening or closing of the valve controls the filter system into different working modes; The filter membrane group is provided with a plurality of reserved ports of the membrane group, and the filter membrane group is connected to the solution tank through the reserved ports of the membrane group through pipelines, and is used for performing conventional filtration on the solution when the conventional filtration mode is started; The carbon powder bucket is connected to the filter membrane group through a pipeline through the reserved port of the membrane group, and is used to perform carbon treatment and filtration on the filter membrane group when the carbon treatment filtration mode is started; The cleaning bucket is connected to the filter membrane group through a pipeline through the reserved port of the membrane group, and is used for automatically cleaning the filter membrane group when the automatic cleaning mode is started. 2. intelligent ultrafiltration machine according to claim 1, is characterized in that, described intelligent ultrafiltration machine also comprises the pressure sensor that is used for monitoring described pipeline pressure that is installed on pipeline respectively, is used to monitor the anti-pressure sensor of pipeline leakage. Leakage devices and temperature sensors for monitoring pipeline temperature; The control system is electrically connected to the pressure sensor, and is used to control the filter system to enter the automatic cleaning mode when the pressure value of the pipeline reaches a preset pressure value; The control system is electrically connected to the anti-leakage device, and is used to close all pneumatic valves and issue an alarm when receiving the leakage signal sent by the anti-leakage device; The control system is electrically connected to the temperature sensor, and is used for receiving the temperature value of the pipeline and issuing an alarm when the temperature value of the pipeline exceeds a preset temperature value. 3. The intelligent ultrafiltration machine according to claim 1, characterized in that, the water production port of the filtration system is connected with a water production port diversion device, and the water production port diversion device includes a first shunt pipe and is sleeved on the second A second shunt pipe outside the shunt pipe, one end of the first shunt pipe is connected to the water production port of the filtration system, the other end of the first shunt pipe extends into the second shunt pipe and is suspended and closed, the first shunt pipe A shunt pipe is also provided with a plurality of shunt ports located in the second shunt pipe, which are used to flow the solution in the first shunt pipe into the second shunt pipe in small streams, and the second shunt pipe is used for Drain the solution into the solution tank. 4. The intelligent ultrafiltration machine according to claim 1, characterized in that, the sewage outlet of the filtration system is connected with a sewage outlet diversion device, and the sewage outlet diversion device comprises a first diversion pipe, and is installed at intervals The second guide pipe in the first guide pipe, one end of the first guide pipe is connected to the sewage outlet of the filtration system, and the other end is used to discharge the sewage to a designated location; the first guide pipe A radially extending portion is formed in a stepped shape; one end of the second flow guide tube abuts against the radially extending portion, and the other end of the second flow guide tube extends to the first flow guide tube In the tube and suspended in the air; The drainage outlet diversion device also includes a one-way valve installed at the end of the first drainage pipe close to the drainage outlet, and the one-way valve is used to prevent the solution from flowing backward. 5. The intelligent ultrafiltration machine according to claim 2, characterized in that, the number of reserved openings of the membrane group is 4, including the first reserved openings which are relatively arranged at the lower end and the upper end of the filter membrane group respectively. A reserved port and a fourth reserved port, and a second reserved port and a third reserved port respectively oppositely arranged on the side wall of the filter membrane group; The water production port of the solution tank is connected to the first reserved port through the pipeline, water inlet pneumatic valve, pipeline, circulation pump and pipeline in sequence; the second reserved port is connected to the first reserved port through the pipeline, the first water production pneumatic valve, the pipeline connected to the water inlet of the solution tank; the second reserved port is connected to the compressed air inlet through the pipeline and the first gas backwash pneumatic valve in turn; the second reserved port is connected to the compressed air inlet through the pipeline and the first water supply pneumatic The valve is connected to the tap water/pure water inlet; the second reserved port is connected to the top reserved port of the cleaning bucket through the pipeline, the medicine washing reverse return pneumatic valve, and the pipeline; the fourth reserved port is sequentially Connect to the top reserved port of the cleaning barrel after passing through the pipeline, the medicine washing forward return pneumatic valve, and the pipe; the fourth reserved port is connected to the top of the toner barrel through the pipeline, the toner bucket water inlet pneumatic valve, and the pipeline in turn. The first top reserved port; the fourth reserved port is connected to the sewage outlet after passing through the pipeline and the exhaust pneumatic valve; the third reserved port is connected to the carbon dioxide through the pipeline, the second water production pneumatic valve and the pipeline The second top reserved opening of the powder bucket; the first reserved opening is connected to the bottom water outlet of the toner bucket after passing through the pipeline, the circulation pump, the pipeline, the toner bucket water outlet pneumatic valve, and the pipeline; the first reserved The reserved opening is connected to the sewage outlet after passing through the pipeline and the sewage pneumatic valve in turn; the first reserved opening is connected to the bottom outlet of the cleaning bucket through the pipeline, the medicine washing water inlet valve, the pipeline, the cleaning pump and the pipeline in turn; the cleaning bucket The outlet at the bottom of the bottom is connected to the cleaning agent suction port after the cleaning agent suction valve; the fourth reserved port is connected to the tap water/pure water inlet through the pipeline and the second water supply pneumatic valve in turn; the first reserved port Connect to the compressed air inlet through the pipeline, the second gas backwash pneumatic valve in turn; the second reserved port is connected to the second top reserved port of the toner bucket through the pipeline, the membrane exhaust pneumatic valve and the pipeline in turn . 6. The intelligent ultrafiltration machine according to claim 5, wherein the temperature sensor is installed on the outer wall of the pipeline between the first reserved port and the circulating pump; the pressure sensor is installed on the On the pipeline between the first reserved port and the gas backwash pneumatic valve. 7. The intelligent ultrafiltration machine according to claim 2, wherein the anti-leakage device comprises: an anti-leakage pipeline, which is vertically installed on the pipeline between the filter system sewage outlet and the sewage pneumatic valve; The floating ball is arranged in the anti-leakage pipeline and can float up and down along the anti-leakage pipeline; the electromagnetic induction switch is installed outside the anti-leakage pipeline, and the electromagnetic induction switch is electrically connected to the control system for The leakage signal is sent when the magnetic floating ball floats up and touches the electromagnetic induction switch. 8. A control method using the intelligent ultrafiltration machine according to any one of claims 1-7, characterized in that, comprising the following steps: S10, start the conventional filtration mode, connect the filter membrane group to the solution tank through the reserved port of the membrane group, and use the filter membrane group to perform conventional filtration on the solution in the solution tank; S20, start the carbon treatment and filtration mode, connect the toner bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the toner bucket to perform carbon treatment and filtration on the filter membrane group; S30. When the real-time working condition of the pipeline reaches the preset value, start the automatic cleaning mode, connect the cleaning bucket to the filter membrane group through the pipeline through the reserved port of the membrane group, and use the cleaning bucket to automatically clean the filter membrane group; S40, emptying the air in the filter membrane group; S50. Re-enter the regular filtering mode. 9. The control method of the intelligent ultrafiltration machine according to claim 8, characterized in that, the pipeline real-time working conditions include pipeline pressure and the filtration time of the conventional filtration mode, and the preset value includes a time corresponding to the pipeline The preset pressure value of the pressure, and the preset filter time corresponding to the filter time of the normal filter mode; If the carbon treatment filtration mode is not activated, the pipeline pressure reaches the preset pressure value or the filtration time of the conventional filtration mode reaches the preset filtration time, step S30 specifically includes: S31. Pressing the solution in the filter membrane group back into the toner bucket; S32, cleaning the filter membrane group with pure water or tap water and compressed air; S33. Empty the filter membrane group, and perform secondary cleaning on the filter membrane group; S34, replenishing water to the cleaning bucket; S35. Cleaning the filter membrane group with a medicament; S36. Empty the liquid medicine in the filter membrane group after the medicine washing is completed; S37. Use pure water/tap water to clean the residual medicinal lotion in the filter membrane group; S38. Empty the filter membrane group. 10. the control method of intelligent ultrafiltration machine according to claim 9, is characterized in that, if when starting described carbon treatment filtration mode, pipeline pressure reaches described preset pressure value or the filtration time of conventional filtration mode reaches required The above preset filtering time also includes before step S31: S310. Pump the solution in the toner bucket back to the solution tank through the filter membrane group through the circulation pump.