Quantitative adding device for silane treating agent

By designing a silane treatment agent quantitative addition device with a magnetic pump, flow meter, and heating mechanism, the problem of inaccurate silane treatment agent addition in the prior art has been solved, achieving stable flow and film uniformity, and improving the quality of electrophoretic coating.

CN224132733UActive Publication Date: 2026-04-17GUANGDONG HUIWEIJIA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HUIWEIJIA TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing silane treatment agent addition devices cannot monitor the addition amount in real time, resulting in fluctuations in the liquid concentration in the electrostatic precipitator, leading to uneven film formation and decreased adhesion.

Method used

A quantitative addition device including a magnetic pump, a flow meter, and a heating mechanism was designed. By monitoring and providing feedback on the amount of silane treatment agent added in real time, the flow rate is ensured to be stable. A high-precision magnetic pump and flow meter are used in conjunction to monitor and provide feedback on the amount of silane treatment agent added in real time, ensuring that the liquid concentration in the electric pool is within the optimal range.

Benefits of technology

It achieves flow stability and metering reliability of silane treatment agent, prevents uneven film formation or decreased adhesion, and ensures that the liquid concentration in the electrostatic precipitator is within the optimal process range.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224132733U_ABST
Patent Text Reader

Abstract

The utility model discloses a silane treating agent quantitative adding device which comprises an electrophoresis tank, one end of a second extraction pipe extends into the electrophoresis tank, a flow meter is arranged on the second extraction pipe, a heating mechanism used for keeping the temperature of a silane treating agent in the second extraction pipe constant is arranged at the top of a supporting plate, and the heating mechanism is used for heating the silane treating agent in the second extraction pipe. The second extraction pipe is arranged in the heating mechanism; through the design of structures such as the magnetic drive pump, the flowmeter and the heating mechanism, the heating mechanism is used for carrying out constant-temperature control on a silane treating agent in the second extraction pipe, the problems of pumping resistance increase, flow deviation and the like caused by viscosity increase in a low-temperature environment are solved, the consistency of the fluidity of a silane solution is ensured, the metering reliability is improved, and the working efficiency is improved. The high-precision magnetic pump is matched with the flow meter, the adding amount of the silane treating agent is monitored and fed back in real time, flow stability is guaranteed, adjustment errors are avoided, the concentration of liquid in an electrophoresis pool is kept within the optimal process range, and uneven film forming or adhesive force reduction is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of silane treatment agent addition technology, specifically to a silane treatment agent quantitative addition device. Background Technology

[0002] Silane treatment is an environmentally friendly metal surface pretreatment technology widely used in electrophoretic coating (such as in the automotive, home appliance, and aluminum profile industries) to replace traditional phosphating or chromating processes. Its core function is to form a nanoscale organic-inorganic composite film on the metal substrate surface, thereby improving the adhesion, corrosion resistance, and coating quality of the electrophoretic paint.

[0003] The prior art provides a silane treatment agent addition device before electrophoresis (publication number CN221071690U). This utility model includes an electrophoresis pool, with several support seats on the lower side of the pool. An annular guide pipe is provided on the top wall of the pool's interior, and several drain pipes are provided below the annular guide pipes. A one-way membrane is provided at the bottom of the drain pipes. An air blowing assembly is provided on one side of the pool, and a support plate is provided on the other side. A water pump is provided on the upper side of the support plate, and a guide pipe is provided at the output end of the water pump. A one-way valve is provided on the outer side of the guide pipe, and one end of the guide pipe is connected to one side of the annular guide pipe in a communicating structure. A liquid extraction pipe is provided at the input end of the water pump, and a quantitative liquid supply section is provided on the outer side of the liquid extraction pipe.

[0004] The aforementioned silane pretreatment agent addition device cannot monitor the actual addition amount in real time during actual use. Errors often occur when adding silane pretreatment agent, leading to fluctuations in the liquid concentration in the electrophoresis pool and causing problems such as uneven film formation and decreased adhesion. Therefore, we need to propose a quantitative silane pretreatment agent addition device. Utility Model Content

[0005] The purpose of this invention is to provide a silane treatment agent quantitative addition device that monitors and provides feedback on the amount of silane treatment agent added in real time, ensuring stable flow rate, avoiding adjustment errors, maintaining the liquid concentration in the electrostatic precipitator within the optimal process range, and preventing uneven film formation or decreased adhesion, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for quantitatively adding a silane treatment agent includes an electric pool, a support plate fixedly installed on the side of the electric pool, a storage tank and a magnetic pump fixedly installed on the top of the support plate, a first extraction pipe connected to the inlet end of the magnetic pump, one end of the first extraction pipe connected to the storage tank, a second extraction pipe connected to the outlet end of the magnetic pump, one end of the second extraction pipe extending into the electric pool, a flow meter installed on the second extraction pipe, and a heating mechanism for maintaining the temperature of the silane treatment agent in the second extraction pipe installed on the top of the support plate, the second extraction pipe being disposed within the heating mechanism.

[0008] Preferably, a bracket is fixedly installed on the top of the support plate, and the second extraction tube is fixedly installed inside the bracket.

[0009] Preferably, the heating mechanism includes a heating box, a clamping block, a sealing gasket, and a heater. Both the heating box and the clamping block are provided with arc-shaped grooves. The second extraction tube is disposed in the arc-shaped groove, and the sealing gasket is disposed in the arc-shaped groove. The clamping block is fixedly installed on the top of the heating box by fixing screws. The sealing gasket is attached to the surface of the second extraction tube, and the heater is fixedly installed in the heating box.

[0010] Preferably, the second extraction tube is provided with a pulsation damper.

[0011] Preferably, a first sealing valve, a filter cartridge, and a second sealing valve are sequentially arranged from left to right on the second extraction pipe between the pulsation damper and the flow meter. The filter cartridge is fixedly installed on the first and second sealing valves. A filtration mechanism for filtering silane treatment agents is provided inside the filter cartridge. The filtration mechanism includes a filter screen, a mounting ring, and a clamping ring. The filter screen is fixedly installed inside the mounting ring. Multiple sets of positioning blocks are symmetrically fixedly connected to the inner wall of the filter cartridge. Multiple sets of positioning grooves corresponding to the positioning blocks are opened on the mounting ring. The positioning blocks are disposed in the positioning grooves. Multiple sets of clamping rods are fixedly connected to the side of the mounting ring. A clamping ring is threadedly installed inside the filter cartridge. The clamping ring abuts against the end of the clamping rod.

[0012] Preferably, the second extraction tube is provided with a first check valve and a fixed seat, the fixed seat is connected to a connecting pipe, and the connecting pipe is provided with a second check valve.

[0013] Preferably, the storage box is provided with an observation window.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a design incorporating a magnetic pump, flow meter, and heating mechanism. The heating mechanism maintains a constant temperature for the silane treatment agent in the second extraction tube, preventing issues such as increased pumping resistance and flow deviation caused by viscosity rise at low temperatures. This ensures consistent silane solution flowability and improves metering reliability. By employing a high-precision magnetic pump and flow meter, the amount of silane treatment agent added is monitored and fed back in real time, ensuring stable flow, avoiding adjustment errors, and maintaining the liquid concentration in the electrostatic precipitator within the optimal process range. This prevents uneven film formation or decreased adhesion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the storage box and heating mechanism of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the filter mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the heating mechanism of this utility model.

[0021] In the diagram: 1. Electric swimming pool; 2. Storage tank; 3. Magnetic pump; 4. First extraction pipe; 5. Second extraction pipe; 6. Support; 7. Pulsation damper; 8. First sealing valve; 9. Filter cartridge; 10. Second sealing valve; 11. Flow meter; 12. First check valve; 13. Fixing seat; 14. Connecting pipe; 15. Second check valve; 16. Filter screen; 17. Positioning groove; 18. Positioning block; 19. Anchoring ring; 20. Heating box; 21. Anchoring block; 22. Sealing gasket; 23. Heater; 24. Mounting ring; 25. Anchoring rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A silane treatment agent quantitative addition device includes an electric pool 1, a support plate fixedly installed on the side of the electric pool 1, a storage tank 2 and a magnetic pump 3 fixedly installed on the top of the support plate, a first extraction pipe 4 connected to the inlet end of the magnetic pump 3, one end of the first extraction pipe 4 connected to the storage tank 2, a second extraction pipe 5 connected to the outlet end of the magnetic pump 3, one end of the second extraction pipe 5 extending into the electric pool 1, a flow meter 11 installed on the second extraction pipe 5, and a heating mechanism for maintaining the temperature of the silane treatment agent in the second extraction pipe 5 installed on the top of the support plate, the second extraction pipe 5 being disposed within the heating mechanism.

[0025] It should be noted that the storage tank 2 is used to store silane treatment agent. The magnetic pump 3 is model Grundfos CM1-3. Through the cooperation of the magnetic pump 3, the first extraction pipe 4 and the second extraction pipe 5, the silane treatment agent in the storage tank 2 is extracted and transported to the electric pool 1. The flow meter 11 is model MicroMotion ELITE CMFS010. The flow meter 11 is used to monitor the delivery flow rate of the silane treatment agent in real time.

[0026] In an optional embodiment: a bracket 6 is fixedly installed on the top of the support plate, and the second extraction tube 5 is fixedly installed inside the bracket 6.

[0027] It should be noted that the bracket 6 serves to support and fix the second extraction tube 5, thereby improving the stability of the second extraction tube 5.

[0028] In an optional embodiment: the heating mechanism includes a heating box 20, a pressing block 21, a sealing gasket 22 and a heater 23. Both the heating box 20 and the pressing block 21 are provided with arc-shaped grooves. The second extraction tube 5 is disposed in the arc-shaped groove. The sealing gasket 22 is disposed in the arc-shaped groove. The pressing block 21 is fixedly installed on the top of the heating box 20 by fixing screws. The sealing gasket 22 is attached to the surface of the second extraction tube 5. The heater 23 is fixedly installed in the heating box 20.

[0029] It should be noted that the heating box 20, fixing screws, and clamping block 21 are used to fix the heating box 20 onto the second extraction tube 5. The sealing gasket 22 improves the sealing effect of the heating box 20 on the second extraction tube 5, preventing the silane treatment agent from leaking out from the contact point between the sealing gasket 22, clamping block 21, and the second extraction tube 5. Liquid can be added into the heating box 20. The heater 23 is a Watlow F4T model. The heater 23 heats the liquid, and the heated liquid maintains a constant temperature for the silane treatment agent in the second extraction tube 5, preventing viscosity increase at low temperatures. In addition, a water temperature sensor, model WIKA TR10-H, can be installed inside the heating box 20 to detect the liquid temperature and prevent the liquid temperature from becoming too high.

[0030] In an optional embodiment, a pulsation damper 7 is provided on the second extraction tube 5.

[0031] It should be noted that the pulsation damper 7 is model PulsaFeeder 220. By setting the pulsation damper 7, the pressure pulsation caused by the periodic operation of the magnetic pump 3 during the transportation of silane treatment agent can be effectively suppressed, thereby significantly improving the stability of fluid transportation. In addition, it can also reduce pipeline vibration and noise, and extend the service life of key components such as pumps and valves. The magnetic pump 3, flow meter 11, pulsation damper 7, heater 23 and water temperature sensor are all electrically connected to the control system, and the intelligent and precise control of the silane treatment agent transportation process can be realized through the control system.

[0032] In an optional embodiment: A first sealing valve 8, a filter cylinder 9, and a second sealing valve 10 are sequentially arranged from left to right on the second extraction pipe 5 between the pulsation damper 7 and the flow meter 11. The filter cylinder 9 is fixedly installed on the first sealing valve 8 and the second sealing valve 10. A filter mechanism for filtering silane treatment agent is provided inside the filter cylinder 9. The filter mechanism includes a filter screen 16, a mounting ring 24, and a clamping ring 19. The filter screen 16 is fixedly installed inside the mounting ring 24. Multiple sets of positioning blocks 18 are symmetrically fixedly connected to the inner wall of the filter cylinder 9. Multiple sets of positioning grooves 17 corresponding to the positioning blocks 18 are opened on the mounting ring 24. The positioning blocks 18 are disposed in the positioning grooves 17. Multiple sets of clamping rods 25 are fixedly connected to the side of the mounting ring 24. A clamping ring 19 is threadedly installed inside the filter cylinder 9. The clamping ring 19 is clamped to the end of the clamping rod 25.

[0033] It should be noted that the filtration mechanism inside the filter cartridge 9 can effectively remove solid particulate impurities and crystals from the silane treatment agent, ensuring the purity of the conveyed fluid. The positioning block 18, in conjunction with the positioning groove 17, can guide and position the mounting ring 24, enabling quick positioning and installation. The threaded adjustment of the clamping ring 19 causes the clamping rod 25 to generate axial clamping force, ensuring the sealing and stability of the filter screen 16. This prevents the mounting ring 24 from shifting under fluid impact and facilitates quick disassembly and assembly during maintenance.

[0034] In addition, when cleaning the solid particulate impurities and crystals filtered on the filter screen 16, the first sealing valve 8 and the second sealing valve 10 are closed. The first sealing valve 8 and the second sealing valve 10 can seal the second extraction tube 5 to prevent the silane treatment agent in the second extraction tube 5 from leaking out. After sealing the second extraction tube 5, the filter cartridge 9 is disassembled.

[0035] In an optional embodiment: a first check valve 12 and a fixed seat 13 are provided on the second extraction tube 5, a connecting tube 14 is connected to the fixed seat 13, and a second check valve 15 is provided on the connecting tube 14.

[0036] It should be noted that the external high-pressure gas supply equipment supplies gas to the connecting pipe 14, so that the high-pressure gas is delivered to the second extraction pipe 5 on the side of the flow meter 11 through the connecting pipe 14. When the high-pressure gas is discharged through the second extraction pipe 5, the residual silane treatment agent inside the second extraction pipe 5 can be discharged, which can prevent it from affecting the amount of silane treatment agent added, and at the same time prevent the silane agent from solidifying in the pipeline, thus affecting the subsequent addition of silane treatment agent.

[0037] In addition, the first check valve 12 prevents the silane treatment agent from flowing back and contaminating the gas path, while the second check valve 15 prevents the medium from entering the gas supply system.

[0038] In an optional embodiment, the storage box 2 is provided with an observation window.

[0039] It should be noted that the observation window allows for easy monitoring of the silane treatment agent level in storage tank 2, facilitating replenishment when necessary.

[0040] In practical use, the magnetic pump 3 is started, and the magnetic pump 3 draws silane treatment agent into the storage tank 2 through the first extraction pipe 4. The extracted silane treatment agent is then transported through the second extraction pipe 5. When the silane treatment agent is transported through the second extraction pipe 5, it first passes through the pulsation damper 7, which improves the stability of the fluid transport. When the transported silane treatment agent passes through the filter cartridge 9, the filter screen 16 in the filter cartridge 9 can remove solid particulate impurities and crystals in the silane treatment agent, ensuring the purity of the transported fluid. When the filtered silane treatment agent passes through the flow meter 11, the transport flow rate of the silane treatment agent is monitored in real time. The output signal of the flow meter 11 is linked with the control system to realize closed-loop feedback regulation. When the detected flow rate deviates from the set value by more than ±1%, the system can automatically adjust the speed of the magnetic pump 3 or adjust the opening of the valve to ensure precise control of the addition amount.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silane treatment agent dosing device comprising an electrophoresis cell (1), characterized in that: A support plate is fixedly installed on the side of the electric pool (1). A storage tank (2) and a magnetic pump (3) are fixedly installed on the top of the support plate. The inlet end of the magnetic pump (3) is connected to a first extraction pipe (4). One end of the first extraction pipe (4) is connected to the storage tank (2). The outlet end of the magnetic pump (3) is connected to a second extraction pipe (5). One end of the second extraction pipe (5) extends into the electric pool (1). A flow meter (11) is installed on the second extraction pipe (5). A heating mechanism for maintaining the temperature of the silane treatment agent in the second extraction pipe (5) is installed on the top of the support plate. The second extraction pipe (5) is located in the heating mechanism.

2. The silane treatment agent dosing device according to claim 1, characterized in that: A bracket (6) is fixedly installed on the top of the support plate, and the second extraction tube (5) is fixedly installed inside the bracket (6).

3. The silane treatment agent dosing device according to claim 1, characterized in that: The heating mechanism includes a heating box (20), a clamping block (21), a sealing gasket (22), and a heater (23). Both the heating box (20) and the clamping block (21) have arc-shaped grooves. The second extraction tube (5) is located in the arc-shaped groove. The sealing gasket (22) is located in the arc-shaped groove. The clamping block (21) is fixedly installed on the top of the heating box (20) by fixing screws. The sealing gasket (22) is attached to the surface of the second extraction tube (5). The heater (23) is fixedly installed inside the heating box (20).

4. The silane treatment agent dosing device of claim 1, wherein: A pulsation damper (7) is provided on the second extraction tube (5).

5. The silane treatment agent dosing device according to claim 4, characterized in that: The second extraction pipe (5) between the pulsation damper (7) and the flow meter (11) is provided with a first sealing valve (8), a filter cylinder (9), and a second sealing valve (10) sequentially from left to right. The filter cylinder (9) is fixedly installed on the first sealing valve (8) and the second sealing valve (10). A filter mechanism for filtering silane treatment agent is provided inside the filter cylinder (9). The filter mechanism includes a filter screen (16), a mounting ring (24), and a clamping ring (19). The filter screen (16) is fixedly installed on the filter cylinder (8). The filter cylinder (9) is installed in the mounting ring (24). The inner wall of the filter cylinder (9) is symmetrically fixedly connected with multiple sets of positioning blocks (18). Multiple sets of positioning grooves (17) corresponding to the positioning blocks (18) are opened on the mounting ring (24). The positioning blocks (18) are set in the positioning grooves (17). Multiple sets of clamping rods (25) are fixedly connected to the side of the mounting ring (24). A clamping ring (19) is threadedly installed in the filter cylinder (9). The clamping ring (19) abuts against the end of the clamping rod (25).

6. The silane treatment agent dosing device of claim 1, wherein: The second extraction tube (5) is provided with a first check valve (12) and a fixed seat (13). The fixed seat (13) is connected to a connecting pipe (14), and the connecting pipe (14) is provided with a second check valve (15).

7. The silane treatment agent dosing device of claim 1, wherein: The storage box (2) is equipped with an observation window.

Citation Information

Patent Citations

  • Device for adding silane treating agent before electrophoresis

    CN221071690U