Surface passivation equipment for corrosion prevention

Abstract

The utility model relates to the technical field of surface passivation equipment, and particularly discloses anti-corrosion surface passivation equipment which comprises a passivation pool, an installation block is installed at one end of a vertical plate, an installation groove is formed in one end of the installation block, a frame is installed in the installation groove in a matched mode, a filter screen is installed in the frame, a liquid inlet is formed in one end of a filter box, and a liquid outlet is formed in the other end of the filter box. The other end of the filter box is provided with a liquid outlet, the end, away from the through hole, of the liquid discharge pipe is cooperatively installed in the liquid inlet, one end of the liquid outlet is provided with a draw-off pump, the water inlet end of the draw-off pump is provided with a liquid outlet pipe, the other end of the liquid outlet pipe is cooperatively installed in the liquid outlet, and the water outlet end of the draw-off pump is provided with a return pipe; and the other end of the return pipe extends into the passivation pool. Through the arrangement of the filtering structure, passivation liquid in the passivation pool can be filtered, and the situation that after the passivation liquid is used for a long time, the passivation liquid contains a large number of impurities, the chemical activity of the passivation liquid is reduced, and the passivation reaction efficiency is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of surface passivation equipment, specifically a surface passivation device for corrosion prevention. Background Technology

[0002] Surface passivation equipment is a device used to improve the surface properties of materials by forming a protective film on the material surface through chemical or physical methods to enhance its corrosion resistance, oxidation resistance and wear resistance.

[0003] The utility model patent application with publication number "CN216514131U" discloses a surface passivation device for anchor chain corrosion prevention, mainly composed of a housing, a drive cylinder, a passivation pool, a servo motor, and a steering roller. This technical solution utilizes the drive cylinder, support plate, and passivation pool. The drive cylinder can lift the passivation pool on the support plate, allowing the anchor chain on the steering roller to be immersed in the passivation liquid within the pool, thereby improving the anchor chain's corrosion resistance. Furthermore, the servo motor, bidirectional threaded rod, and steering plate enable the servo motor to drive the bidirectional threaded rod, causing the steering plate to move linearly. The steering plate, immersed in the passivation liquid, can cause the passivation liquid to flow, thus improving the reaction efficiency between the anchor chain and the passivation liquid. The steering plate can also stir the passivation liquid, preventing the precipitation of any components, resulting in a better passivation effect on the anchor chain surface.

[0004] The surface passivation equipment for corrosion protection disclosed in the above document has the following defects: the workpiece in the surface passivation equipment may have rust, oil or other contaminants attached to it before entering the passivation pool. These substances may fall off and enter the passivation solution during the passivation process, forming impurities. The impurities may adsorb the effective components (such as corrosion inhibitors and oxidants) in the passivation solution, reduce the chemical activity of the passivation solution, and affect the passivation reaction efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a surface passivation device for corrosion prevention, which solves the problem that the passivation solution in the existing passivation tank contains a large number of impurities after long-term use.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a surface passivation device for corrosion prevention, comprising a passivation tank, a support column on the lower surface of the passivation tank, a through hole on the lower surface of the passivation tank, a drain pipe installed inside the through hole, a control valve and a flow valve installed on the outer surface of the drain pipe, a filter structure at the other end of the drain pipe, the filter structure comprising a filter box, a cover installed on the upper surface of the filter box, a vertical plate on the lower surface of the cover, an mounting block installed at one end of the vertical plate, an mounting groove at one end of the mounting block, a frame installed inside the mounting groove, a filter screen installed inside the frame, an inlet at one end of the filter box, an outlet at the other end of the filter box, the end of the drain pipe away from the through hole installed inside the inlet, a pump installed at one end of the outlet, an outlet pipe installed at the inlet end of the pump, the other end of the outlet pipe installed inside the outlet, a return pipe installed at the outlet end of the pump, and the other end of the return pipe extending into the interior of the passivation tank.

[0008] Furthermore, a base is provided at one end of the extraction pump, a support frame is provided on the upper surface of the base, a fixed seat is provided on the outer surface of the support frame, and a return pipe is snapped into the inside of the fixed seat.

[0009] Furthermore, a groove is provided at the other end of the vertical plate, and a sealing ring is installed inside the groove, with the outer surface of the sealing ring abutting against the inner surface of the filter box.

[0010] Furthermore, a limiting groove is provided at the bottom of the filter box, and one end of the frame is fitted inside the limiting groove.

[0011] Furthermore, the outer surface of the filter box is provided with a first connecting block, the outer surface of the first connecting block is provided with an installation hole, the outer surface of the cover is provided with a second connecting block, one end of the second connecting block is provided with a positioning groove, and the first connecting block is located inside the positioning groove.

[0012] Furthermore, a groove is formed on the outer surface of the second connecting block, and a sliding plate is slidably connected inside the groove. A limit post is installed at one end of the sliding plate, and one end of the limit post passes through the second connecting block and is fitted inside the mounting hole. A baffle is installed on the outer surface of the second connecting block, and a connecting rod is installed at the other end of the sliding plate. One end of the connecting rod passes through the baffle and is fitted with a pull block. A spring is sleeved on the outer surface of the connecting rod, and one end of the spring is installed on the outer surface of the sliding plate, while the other end of the spring is installed on the outer surface of the baffle.

[0013] This utility model has the following beneficial effects:

[0014] (1) By opening the control valve, the passivation liquid is discharged from the bottom of the passivation tank through the drain pipe. The passivation liquid enters the inlet of the filter structure through the drain pipe and flows into the filter box. The passivation liquid first passes through the filter screen in the frame. The filter screen intercepts solid particles, impurities and precipitates in the liquid. The filtered clean passivation liquid continues to flow to the outlet of the filter box. The filtered passivation liquid enters the outlet pipe through the outlet and is extracted by the extraction pump. The extraction pump transports the clean passivation liquid back to the passivation tank through the return pipe to complete the cycle. This avoids the passivation liquid from containing a large number of impurities after long-term use, which would reduce the chemical activity of the passivation liquid and affect the passivation reaction efficiency.

[0015] (2) By pulling the pull block outward, the connecting rod drives the slide plate to slide outward and gradually compresses the spring. The limiting post then exits from the mounting hole, releasing the fixation of the cover. When the limiting post is completely removed, the connection between the cover and the filter box is released. Gently lift the cover upward to separate it from the filter box, exposing the filter screen to the outside world, which makes it easier for staff to clean and replace the filter screen.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the filter structure of this utility model;

[0020] Figure 3 This is a cross-section of the filter structure of this utility model. Figure 1 ;

[0021] Figure 4 This is a cross-section of the filter structure of this utility model. Figure 2 ;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Passivation tank; 101. Support column; 2. Drain pipe; 3. Control valve; 4. Flow valve; 5. Filter structure; 501. Filter box; 502. Cover; 503. Vertical plate; 504. Mounting block; 505. Frame; 506. Filter screen; 507. Inlet; 508. Outlet; 509. Groove; 5010. Limiting groove; 5011. First connecting block; 5012. Mounting hole; 5013. Second connecting block; 6. Extraction pump; 7. Outlet pipe; 8. Return pipe; 9. Base; 901. Support frame; 902. Fixing seat; 10. Sealing ring; 11. Slide plate; 12. Limiting column; 13. Baffle; 14. Connecting rod; 15. Pull block; 16. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please see Figures 1-4 As shown, this utility model is a surface passivation device for corrosion prevention, including a passivation tank 1. A support column 101 is provided on the lower surface of the passivation tank 1. A through hole is formed on the lower surface of the passivation tank 1, and a drain pipe 2 is installed inside the through hole. A control valve 3 and a flow valve 4 are installed on the outer surface of the drain pipe 2. A filter structure 5 is provided at the other end of the drain pipe 2. The filter structure 5 includes a filter box 501. A cover 502 is installed on the upper surface of the filter box 501. A vertical plate 503 is provided on the lower surface of the cover 502. An installation block 504 is installed at one end of the vertical plate 503, and an installation opening is formed at one end of the installation block 504. The installation tank has a frame 505 installed inside it, and a filter screen 506 installed inside the frame 505. One end of the filter box 501 has an inlet 507, and the other end of the filter box 501 has an outlet 508. The end of the drain pipe 2 away from the through hole is installed inside the inlet 507. One end of the outlet 508 is equipped with a pump 6. The inlet end of the pump 6 is equipped with an outlet pipe 7, and the other end of the outlet pipe 7 is installed inside the outlet 508. The outlet end of the pump 6 is equipped with a return pipe 8, and the other end of the return pipe 8 extends into the passivation tank 1.

[0026] In use, the workpiece is first lifted by external hoisting equipment and then placed into the passivation tank 1 for passivation. When the passivation solution contains a large number of impurities, the control valve 3 is opened to allow the passivation solution to be discharged from the bottom of the passivation tank 1 through the drain pipe 2. The passivation solution enters the inlet 507 of the filter structure 5 through the drain pipe 2 and flows into the filter box 501. The passivation solution first passes through the filter screen 506 in the frame 505. The filter screen 506 intercepts solid particles, impurities and precipitates in the liquid. The filtered clean passivation solution continues to flow to the outlet 508 of the filter box 501. The filtered passivation solution enters the outlet pipe 7 through the outlet 508 and is extracted by the extraction pump 6. The extraction pump 6 transports the clean passivation solution back to the passivation tank 1 through the return pipe 8 to complete the circulation. This prevents the passivation solution from containing a large number of impurities after long-term use, which would reduce the chemical activity of the passivation solution and affect the passivation reaction efficiency.

[0027] A base 9 is provided at one end of the extraction pump 6. A support frame 901 is provided on the upper surface of the base 9. A fixed seat 902 is provided on the outer surface of the support frame 901. A return pipe 8 is snapped into the inside of the fixed seat 902.

[0028] The fixing seat 902 is designed with a snap-fit ​​structure to fix the return pipe 8 and prevent the return pipe 8 from loosening or falling off due to liquid flow or external force.

[0029] The other end of the vertical plate 503 has a groove 509, and a sealing ring 10 is installed inside the groove 509. The outer surface of the sealing ring 10 abuts against the inner surface of the filter box 501.

[0030] The sealing ring 10 forms a tight sealing barrier between the cover 502 and the filter box 501 to prevent the passivation liquid from leaking from the connection during the filtration process.

[0031] A limiting groove 5010 is provided at the bottom of the filter box 501, and one end of the frame 505 is fitted inside the limiting groove 5010.

[0032] The limiting groove 5010 is installed in conjunction with one end of the frame 505 to ensure that the frame 505 is fixed and accurate in the filter box 501, to prevent the frame 505 from shifting or tilting during operation, and to ensure that the filter screen 506 can completely cover the liquid flow path, thereby improving the filtration effect.

[0033] The outer surface of the filter box 501 is provided with a first connecting block 5011, and the outer surface of the first connecting block 5011 is provided with a mounting hole 5012. The outer surface of the cover 502 is provided with a second connecting block 5013, and one end of the second connecting block 5013 is provided with a positioning groove. The first connecting block 5011 is located inside the positioning groove.

[0034] The outer surface of the second connecting block 5013 is provided with a sliding groove, and a sliding plate 11 is slidably connected inside the sliding groove. A limit post 12 is installed at one end of the sliding plate 11. One end of the limit post 12 passes through the second connecting block 5013 and is fitted inside the mounting hole 5012. A baffle 13 is installed on the outer surface of the second connecting block 5013. A connecting rod 14 is installed at the other end of the sliding plate 11. One end of the connecting rod 14 passes through the baffle 13 and is fitted with a pull block 15. A spring 16 is sleeved on the outer surface of the connecting rod 14. One end of the spring 16 is installed on the outer surface of the sliding plate 11, and the other end of the spring 16 is installed on the outer surface of the baffle 13.

[0035] When the filter screen 506 needs cleaning, pull the pull block 15 outward to make the connecting rod 14 drive the slide plate 11 to slide outward and gradually compress the spring 16. The limiting post 12 then exits from the mounting hole 5012, releasing the fixation on the cover 502. After the limiting post 12 is completely removed, the connection between the cover 502 and the filter box 501 is released. Gently lift the cover 502 upward to separate it from the filter box 501, exposing the filter screen 506 to the outside world, which makes it easier for staff to clean and replace the filter screen 506.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A surface passivation apparatus for corrosion prevention, comprising a passivation tank (1), the lower surface of the passivation tank (1) is provided with a support column (101), characterized in that: The lower surface of the passivation tank (1) is provided with a through hole, a drain pipe (2) is installed in the through hole, a control valve (3) and a flow valve (4) are installed on the outer surface of the drain pipe (2), and a filter structure (5) is arranged at the other end of the drain pipe (2); The filter structure (5) comprises a filter box (501), a cover body (502) is installed on the upper surface of the filter box (501), a vertical plate (503) is arranged on the lower surface of the cover body (502), an installation block (504) is installed at one end of the vertical plate (503), an installation groove is formed at one end of the installation block (504), a frame (505) is fitted and installed in the installation groove, and a filter screen (506) is installed in the frame (505); One end of the filter box (501) is provided with a liquid inlet (507), the other end of the filter box (501) is provided with a liquid outlet (508), one end of the drain pipe (2) away from the through hole is fitted and installed in the liquid inlet (507), and one end of the liquid outlet (508) is provided with a suction pump (6); The water inlet end of the suction pump (6) is provided with a liquid outlet pipe (7), the other end of the liquid outlet pipe (7) is fitted and installed in the liquid outlet (508), the water outlet end of the suction pump (6) is provided with a return pipe (8), and the other end of the return pipe (8) extends into the passivation tank (1).

2. A surface passivation apparatus for corrosion protection according to claim 1, characterized in that: One end of the suction pump (6) is provided with a base (9), the upper surface of the base (9) is provided with a support frame (901), the outer surface of the support frame (901) is provided with a fixing seat (902), and the fixing seat (902) is clamped with the return pipe (8).

3. The apparatus for passivating a surface for corrosion protection of claim 1, wherein: The other end of the vertical plate (503) is provided with a groove (509), a sealing ring (10) is fitted and installed in the groove (509), and the outer surface of the sealing ring (10) abuts against the inner surface of the filter box (501).

4. The apparatus for surface passivation for corrosion protection of claim 1, wherein: The inner bottom of the filter box (501) is provided with a limiting groove (5010), and one end of the frame (505) is fitted and installed in the limiting groove (5010).

5. The apparatus for passivating a surface for corrosion protection of claim 1, wherein: The outer surface of the filter box (501) is provided with a first connecting block (5011), the outer surface of the first connecting block (5011) is provided with an installation hole (5012), the outer surface of the cover body (502) is provided with a second connecting block (5013), one end of the second connecting block (5013) is provided with a positioning groove, and the first connecting block (5011) is located in the positioning groove.

6. A surface passivation apparatus for corrosion protection according to claim 5, characterized in that: The outer surface of the second connecting block (5013) is provided with a sliding groove, a sliding plate (11) is slidably connected in the sliding groove, one end of the sliding plate (11) is provided with a limiting column (12), and one end of the limiting column (12) penetrates through the second connecting block (5013) and is fitted and installed in the installation hole (5012). The outer surface of the second connecting block (5013) is provided with a baffle (13), the other end of the sliding plate (11) is provided with a connecting rod (14), one end of the connecting rod (14) penetrates through the baffle (13) and is provided with a pulling block (15), the outer surface of the connecting rod (14) is sleeved with a spring (16), one end of the spring (16) is installed on the outer surface of the sliding plate (11), and the other end of the spring (16) is installed on the outer surface of the baffle (13).

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