Special exchange membrane pretreatment device

Abstract

The utility model discloses a special exchange membrane pretreatment device which comprises a tank body, a first-stage follicular grid, a second-stage follicular grid, a third-stage follicular grid and a U-shaped grid are sequentially mounted in the tank body, a turbidity sensor is mounted on the U-shaped grid, an air outlet is formed in the top of the tank body, the tank body is provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the liquid outlet. The tank body is provided with a proton exchange membrane device, and the proton exchange membrane device is provided with a liquid outlet. The bubble removing device has the beneficial effects that bubbles are removed by adopting a three-stage bubble filtering grating and hierarchical gradient bubble filtering mode, so that the bubble removing efficiency is greatly improved, the application range is wide, and the bubble removing device can be applied to pretreatment procedures of various electronic-grade membrane products and different environment scenes and is pollution-free.

Description

Technical Field

[0001] This utility model relates to the field of electronic chemical production technology, specifically to a special exchange membrane pretreatment device. Background Technology

[0002] With the rapid development of high-tech industries, the electronics and semiconductor industries are applying special exchange membranes. During the application of these special proton exchange membranes, air bubbles can affect their efficiency and effectiveness, consequently impacting the purity of the encapsulating liquid. Traditional pretreatment devices are only effective at removing large air bubbles, but have poor or no effect on small air bubbles. Furthermore, there are no effective instruments to assess the degree of air bubble removal, leading to high replacement frequency and low performance of the proton exchange membranes during application. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a special exchange membrane pretreatment device, which uses a three-stage filter grid and a step-by-step gradient filtration method to remove bubbles, greatly improving the bubble removal efficiency. It has a wide range of applications and can be used in the pretreatment process of various electronic-grade membrane products. It can be applied to different environmental scenarios and is pollution-free.

[0004] Specifically, this utility model discloses a special exchange membrane pretreatment device, comprising: a tank, wherein a primary filter grid, a secondary filter grid, a tertiary filter grid and a U-shaped grid are sequentially installed inside the tank, a turbidity sensor is installed on the U-shaped grid, an air outlet is provided at the top of the tank, a liquid inlet and a liquid outlet are provided in the tank, and a proton exchange membrane device is connected to the tank, wherein the proton exchange membrane device is provided with a liquid outlet.

[0005] The advantages of adopting the above technical solution are that it uses a three-stage filter grid and a layered gradient filtration method to remove bubbles, which greatly improves the bubble removal efficiency. It has a wide range of applications and can be used in the pretreatment process of various electronic-grade membrane products. It can be applied to different environmental scenarios and is pollution-free.

[0006] Furthermore, the primary filter grid and the tertiary filter grid are installed at the bottom of the tank, with their upper sides forming a flow channel with the tank. The secondary filter grid is located in the middle of the tank, with its upper and lower sides forming a flow channel with the tank.

[0007] The advantage of adopting the above technical solution is that when the liquid flows in the tank, it forms turbulence through the staggered three-stage grid, which greatly increases the contact area between the bubbles and the filter grid, thereby improving the filter efficiency.

[0008] Furthermore, the primary, secondary, and tertiary filter grids all include a filter screen and a mounting frame. The mounting frame has symmetrically arranged upper and lower fixing plates. The lower fixing plates are connected by hinges, and the upper fixing plates are connected by detachable snap-fit ​​components.

[0009] The advantage of adopting the above technical solution is that the entire mounting frame can be opened and closed. By removing the upper snap-fit, the entire mounting frame can be opened, and the internal filter screen can be taken out for easy cleaning and replacement. After cleaning or replacement, the entire mounting frame can be clamped together with the snap-fit ​​to complete the installation.

[0010] Furthermore, the upper fixing plate is provided with a receiving groove for accommodating the main body of the snap-fit ​​component, the receiving groove is provided with a circular groove, and the snap-fit ​​component is provided with a circular protrusion that mates with the circular groove.

[0011] The advantage of adopting the above technical solution is that the snap-fit ​​component is elastically fixed by the circular fixing groove. When disassembling, you only need to lift the snap-fit ​​component upwards, without removing the screws, which makes disassembly and assembly convenient.

[0012] Furthermore, fixing blocks are provided on both sides and the bottom of the tank body. The fixing blocks are symmetrically fixed inside the tank body. The fixing blocks are provided with fixing grooves, which are used to accommodate and fix the primary filter grid, the secondary filter grid, the tertiary filter grid and the U-shaped grid.

[0013] The advantage of adopting the above technical solution is that the primary filter grid, secondary filter grid, tertiary filter grid and U-shaped grid are fixed by fixing blocks, which makes installation convenient.

[0014] Furthermore, the tank is equipped with a cleaning device, including a water outlet pipe and a nozzle. There are multiple nozzles installed on the water outlet pipe, and both ends of the water outlet pipe extend from the upper side of the tank.

[0015] The advantage of adopting the above technical solution is that the internal filter and tank are cleaned through the nozzle, which facilitates continuous use and ensures cleaning quality.

[0016] Furthermore, the bottom of the tank is conical and has a sewage outlet, which is equipped with a valve.

[0017] The advantages of adopting the above technical solution are that the conical tank facilitates the discharge of sewage, and the valve is designed to be closed when not being cleaned, making it convenient to use.

[0018] Furthermore, the air outlet is provided with an air outlet assembly, which includes a fixed body connected to the air outlet. The fixed body has a movable piece and a guide shaft inside, the movable piece is connected to the bottom of the guide shaft, and the fixed body has a movable groove for the guide shaft to move. The movable piece moves up and down.

[0019] The advantage of adopting the above technical solution is that, during use, after the grid filters the bubbles, the bubbles accumulate to form large bubbles, which eventually gather at the outlet. When the gas increases, the lifting moving plate moves upward and the gas is discharged. When no gas is discharged, due to atmospheric pressure, the moving plate is pressed against the outlet, and external gas and impurities will not enter the tank, keeping the liquid inside the tank clean.

[0020] Furthermore, a spring is fitted on the top of the guide shaft, and a discharge port is provided on the side of the fixing body.

[0021] The advantage of adopting the above technical solution is that the spring not only provides some pressure to prevent external gas from entering, but also allows the moving plate to automatically return to its original position.

[0022] Furthermore, the proton exchange membrane device includes a device body, and a proton exchange membrane is disposed within the device body.

[0023] The advantage of adopting the above technical solution is that the proton exchange membrane allows the fluid to pass through while impurity ions in the fluid remain on one side of the membrane, and hydrated protons are replaced on the other side of the membrane, ensuring that the purity of the liquid meets the requirements for use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the overall structure of the special exchange membrane pretreatment device of this utility model.

[0026] Figure 2 This is an installation structure diagram of the cleaning device of this utility model.

[0027] Figure 3 This is the main structural view of the filter grid installation of this utility model.

[0028] Figure 4 This is the isometric drawing of the mounting frame of this utility model.

[0029] Figure 5 This is an enlarged view of section A of this utility model.

[0030] Figure 6 This is a cross-sectional view of the snap-fit ​​connector of this utility model.

[0031] Figure 7 This is a side cross-sectional view of the clamping component of this utility model.

[0032] Figure 8 This is a structural diagram of the air outlet component of this utility model.

[0033] Figure 9 This is a structural diagram of the fixing block of this utility model.

[0034] Figure 10 This is a structural diagram of the positioning block of this utility model.

[0035] The reference numerals used in the attached figures are as follows:

[0036] Tank body 1; Air outlet 11; Liquid inlet 12; Liquid outlet 13; Fixing block 14; Wastewater discharge outlet 15; Positioning block 16; Primary filter screen 2; Filter screen 21; Mounting frame 22; Upper fixing plate 23; Receiving tank 231; Circular groove 232; Lower fixing plate 24; Snap-fit ​​piece 25; Secondary filter screen 3; Tertiary filter screen 4; U-shaped screen 5; Turbidity sensor 51; Proton exchange membrane device 6; Device body 61; Proton exchange membrane 62; Water outlet pipe 7; Nozzle 71; Fixing body 8; Moving plate 81; Guide shaft 82; Spring 83; Discharge outlet 84. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings.

[0038] like Figure 1-3 As shown, a special exchange membrane pretreatment device is disclosed, comprising: a tank 1 with an openable top cover; a primary filter grid 2, a secondary filter grid 3, a tertiary filter grid 4, and a U-shaped grid 5 sequentially installed inside the tank 1; a turbidity sensor 51 installed on the U-shaped grid 5; an air outlet 11 at the top of the tank 1 (multiple outlets are possible); a liquid inlet 12 and a liquid outlet 13, both equipped with valves; a proton exchange membrane device 6 connected to the tank 1; and a liquid outlet of the proton exchange membrane device 6. The turbidity sensor 51 accurately collects data on the degree of bubble removal to detect the bubble removal effect in the liquid. Simultaneously, the U-shaped filter grid provides a relatively stable liquid system, ensuring the accuracy of the sensor data.

[0039] The advantages of adopting the above technical solution are that it uses a multi-stage filter grid 4 to remove bubbles in a layered gradient filtration manner, which greatly improves the bubble removal efficiency, has a wide range of applications, can be applied to the pretreatment process of various electronic-grade membrane products, can be applied to different environmental scenarios, and is pollution-free.

[0040] In some implementations, the primary filter grid 2 and the tertiary filter grid are installed at the bottom of the tank 1, with space between their upper sides and the bottom of the tank 1 to form a flow channel. The secondary filter grid 3 is located in the middle of the tank 1, with space between its upper and lower sides and the tank 1 to form a flow channel. The mesh size of the tertiary filter grid 4 gradually increases, so that the primary filter grid 2 filters large bubbles, the secondary filter grid 3 filters medium-sized bubbles, and the tertiary filter grid 4 filters the smallest bubbles. The three stages progressively remove bubbles. Furthermore, as the liquid flows within the tank 1, the staggered arrangement of the three filter grids creates turbulence, significantly increasing the contact area between the bubbles and the filter grid, thus improving filtration efficiency.

[0041] The U-shaped grid 5 is installed on the rear side of the three-stage filter grid 4, facing downwards. One side forms a flow channel with the bottom of the tank 1, and the other side contacts the bottom of the tank 1, with a channel in the middle of this side.

[0042] Furthermore, the primary filter screen 2, the secondary filter screen 3, and the tertiary filter screen 4 all include a filter screen 21 and a mounting frame 22 (e.g., Figure 4-7 As shown, the filter screen 21 is clamped and installed inside the mounting frame 22. The mounting frame 22 has symmetrically arranged upper fixing plate 23 and lower fixing plate 24. The upper and lower fixing plates are fixed by side plates on both sides. Multiple reinforcing plates are also provided to strengthen and fix the filter screen 21 and prevent it from deforming. The two lower fixing plates 24 are connected by hinges, so that the entire mounting frame 22 can be opened. The upper fixing plate 23 is connected by a detachable snap-fit ​​piece 25. By removing the snap-fit ​​piece 25 on the upper side, the entire mounting frame 22 can be opened to take out the internal filter screen 21 for easy cleaning and replacement. After cleaning or replacement, the entire mounting frame 22 is clamped by the snap-fit ​​piece 25 to complete the installation.

[0043] Furthermore, the upper fixing plate 23 is provided with a receiving groove 231 for accommodating the main body of the snap-fit ​​component 25. The receiving groove 231 is located on the top and outer side of the two symmetrically arranged upper fixing plates 23. The receiving groove 231 is provided with a circular groove 232. The snap-fit ​​component 25 is U-shaped and fixed in the receiving groove 231. It has a certain elasticity and clamps the two upper fixing plates 23. The snap-fit ​​component 25 is provided with a circular protrusion that cooperates with the circular groove 232. The snap-fit ​​component 25 is fixed by the circular fixing groove. When disassembling, you only need to lift the snap-fit ​​component 25 upwards. There is no need to remove the screws, which makes disassembly and assembly convenient.

[0044] In some implementations, fixing blocks 14 are provided on both sides and the bottom of the tank body 1 (e.g., Figure 9-10As shown, the fixing block 14 is fixed by welding. The fixing block 14 is symmetrically fixed inside the tank body 1, and the position is determined according to the grid. The fixing block 14 is provided with a fixing groove, which is used to accommodate and fix the primary filter grid 2, secondary filter grid 3, tertiary filter grid 4 and U-shaped grid 5. The upper side of the fixing block 14 used to fix the primary filter grid 2, secondary filter grid 3 and tertiary filter grid 4 is also provided with a positioning block 16. The positioning block 16 is provided with a positioning groove. The positioning block 16 is installed inside the tank body 1 by screws. The primary filter grid 2, secondary filter grid 3 and tertiary filter grid 4 are inserted from the top and fixed by the two sides of the positioning groove and the fixing block 14. When disassembly is required, it is not necessary to remove the screws.

[0045] The advantage of adopting the above technical solution is that the primary filter grid 2, secondary filter grid 3, tertiary filter grid 4 and U-shaped grid 5 are fixed by the fixing block 14, which makes installation convenient.

[0046] In some embodiments, a cleaning device is provided inside the tank 1, including a water outlet pipe 7 and a nozzle 71. There are multiple nozzles 71 installed on the water pipe. The nozzles 71 have multiple angles facing the sides of each filter grid and the bottom of the tank 1. The two ends of the water outlet pipe 7 extend from the upper side of the tank 1. Water for cleaning is introduced into the water outlet pipe and sprayed out from the nozzle.

[0047] The internal filter 21 and the tank 1 are cleaned through the nozzle 71, which facilitates subsequent use, ensures cleaning quality, and avoids liquid contamination.

[0048] Furthermore, the bottom of the tank 1 is conical, and a sewage outlet 15 is provided, which is equipped with a valve. The conical shape of the tank 1 facilitates sewage discharge, and the valve is designed to be closed when not being cleaned, making it convenient to use.

[0049] In some implementations, the air outlet 11 is provided with an air outlet assembly (such as... Figure 8 As shown, the air outlet assembly includes a fixed body 8, which is connected to the air outlet 11 by screws. The fixed body 8 has a chamber communicating with the air inlet. Inside the fixed body 8, there is a movable plate 81 and a guide shaft 82. The bottom of the movable plate 81 and the guide shaft 82 are connected by screws. A top cover is fixed to the upper side of the fixed body 8. The top cover has a movable groove for the guide shaft 82 to move. The movable plate 81 moves up and down. When the movable plate 81 is at the bottom, it closes the air outlet 11. When the movable plate 81 is lifted upwards, the internal gas is discharged. A sealing ring is installed in the chamber to ensure sealing performance.

[0050] During use, after the three-stage grid filter, the bubbles accumulate to form large bubbles. The large bubbles eventually gather at the air outlet 11 located on the upper side of the tank 1. When the gas increases, the lifting moving plate 81 moves upward and the gas is discharged. When no gas is discharged, due to atmospheric pressure, the moving plate 81 is pressed against the air outlet 11, and external gas and impurities will not enter the interior of the tank 1, keeping the liquid inside the tank 1 from being contaminated.

[0051] Furthermore, a spring 83 is fitted on the top of the guide shaft 82. The spring 83 is located in the moving groove, and its lower end abuts against the top of the guide shaft 82. An outlet 84 is provided on the side of the fixed body 8, and gas is discharged from the outlet 84 on the side. The spring 83 can not only provide some pressure, but also make the moving plate automatically return to its position.

[0052] In some embodiments, the proton exchange membrane device 6 includes a device body 61, within which a proton exchange membrane 62 is disposed. The inlet of the device body 61 communicates with the outlet 13 of the tank 1, and the device body 61 also has a liquid outlet for discharging liquid. The interior of the device body 61 is divided into three receiving chambers by partitions, each containing a proton exchange membrane 62, which can be fixed by a frame and then installed in each receiving chamber. Flow channels are provided between the partitions. The upper side of the entire device body 61 has an openable cover for installing the internal proton exchange membrane 62.

[0053] The advantage of adopting the above technical solution is that when fluid passes through the proton exchange membrane 62, impurity ions in the fluid remain on one side of the membrane, while hydrated protons are replaced on the other side of the membrane, ensuring that the purity of the liquid meets the requirements for use.

[0054] This utility model has the following advantages:

[0055] 1. A three-stage filter grid is used to remove bubbles through a tiered gradient filtration method, which greatly improves the bubble removal efficiency;

[0056] 2. A turbidity sensor 51 is used to accurately collect data on the degree of bubble removal to detect the effect of bubble removal in the liquid. At the same time, a U-shaped filter grid is used to provide a relatively stable liquid system to ensure the accuracy of the sensor data.

[0057] 3. The liquid adopts a turbulent flow direction in the pretreatment device, which greatly increases the contact area between the bubbles and the filter grid, thereby improving the filter efficiency;

[0058] 4. The inlet flow rate can be adjusted according to the amount of liquid being processed on site, making it widely applicable. The equipment in contact with the liquid is made of corrosion-resistant materials or has a corrosion-resistant coating, such as duplex steel. The proton exchange membrane is also made of corrosion-resistant materials (such as perfluorosulfonic acid-supported graphene).

[0059] 5. It has a wide range of applications and can be used in the pretreatment process of various electronic-grade membrane products. It can be applied to different environmental scenarios and is pollution-free.

[0060] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A special exchange membrane pre-treatment device, characterized by, The utility model provides a kind of water purifier, including: Tank body (1), primary filter bubble grid (2), secondary filter bubble grid (3), tertiary filter bubble grid (4) and U-shaped grid (5) are sequentially installed in the tank body (1), turbidity sensor (51) is installed on the U-shaped grid (5), the top of the tank body (1) is provided with air outlet (11), the tank body (1) is provided with liquid inlet (12) and liquid outlet (13), the tank body (1) is connected with proton exchange membrane device (6), and the proton exchange membrane device (6) is provided with liquid outlet.

2. The special exchange membrane pre-treatment device according to claim 1, characterized in that The primary filter bubble grid (2) and the tertiary filter bubble grid (4) are installed at the bottom of the tank body (1), and the upper side forms a flow channel with the tank body (1), and the secondary filter bubble grid (3) is arranged in the middle of the tank body (1), and the upper and lower sides form a flow channel with the tank body (1).

3. The special exchange membrane pre-treatment device according to claim 1, characterized in that, The primary filter bubble grid (2), secondary filter bubble grid (3) and tertiary filter bubble grid (4) each include a filter screen (21) and a mounting frame (22), the mounting frame (22) has a symmetrically arranged upper fixed plate (23) and a lower fixed plate (24), the lower fixed plate (24) is connected by a hinge, and the upper fixed plate (23) is connected by a detachable clamping piece (25).

4. The special exchange membrane pre-treatment device according to claim 3, characterized in that The upper fixed plate (23) is provided with a receiving groove (231) for accommodating the main body of the clamping piece (25), the receiving groove (231) is provided with a circular groove (232), and the clamping piece (25) is provided with a circular protrusion matched with the circular groove (232).

5. The special exchange membrane pre-treatment device according to claim 1, characterized in that, Both sides and the bottom of the tank body (1) are provided with fixing blocks (14), the fixing blocks (14) are symmetrically fixed inside the tank body (1), the fixing blocks (14) are provided with fixing grooves for accommodating and fixing the primary filter bubble grid (2), the secondary filter bubble grid (3), the tertiary filter bubble grid (4) and the U-shaped grid (5).

6. The special exchange membrane pre-treatment device of claim 1, wherein, A cleaning device is arranged in the tank body (1), including a water outlet pipe (7) and a plurality of spray heads (71) mounted on the water outlet pipe (7), and both ends of the water outlet pipe (7) extend out of the upper side of the tank body (1).

7. The special exchange membrane pre-treatment device according to claim 1, characterized in that, The bottom of the tank body (1) is conical, and is provided with a sewage discharge outlet (15), and the sewage discharge outlet (15) is provided with a valve.

8. The special exchange membrane pre-treatment device of claim 1, wherein, The air outlet (11) is provided with an air outlet assembly, the air outlet assembly includes a fixed body (8), the fixed body (8) is connected with the air outlet (11), the fixed body (8) is provided with a moving piece (81) and a guide shaft (82) inside, the moving piece (81) is connected with the bottom of the guide shaft (82), the fixed body (8) is provided with a moving groove for the movement of the guide shaft (82), and the moving piece (81) moves up and down.

9. The special exchange membrane pre-treatment device according to claim 8, characterized in that The top of the guide shaft (82) is sleeved with a spring (83), and the side of the fixed body (8) is provided with a discharge outlet (84).

10. The special exchange membrane pre-treatment device of claim 1, wherein, The proton exchange membrane device (6) includes a device main body (61), and the device main body (61) is provided with a proton exchange membrane (62) inside.

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