Steel gate for highly corrosive environments

Abstract

The utility model relates to water conservancy gate technical field especially relates to a steel gate for high corrosion environment, including sluice groove frame, and fill the box and processing cavity, the inside of sluice groove frame is connected with two gate leaves that can along sluice groove frame and lift through drive mechanism, the fill the box is filled with the processing liquid that carries out the surface treatment to gate leaf, the number of processing cavity is two and with gate leaf one -to -one corresponding setting, the gate leaf is located between the upper end of sluice groove frame and fill the box, and be equipped with the liquid inlet mechanism that is used for the injection processing liquid to processing cavity between processing cavity and fill the box, the utility model discloses through the alternate work of two gate leaves can let gate leaf separate high corrosion sewage environment without stopping machine, carry out the anticorrosive treatment in processing cavity, also avoid the trouble of traditional maintenance need to dismantle gate, stop machine simultaneously, prolong the service life of gate leaf, reduce the cost of frequent replacement gate leaf, solve the core problem of gate maintenance difficult under high corrosion environment.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic gate technology, and in particular to a steel gate for use in highly corrosive environments. Background Technology

[0002] In highly corrosive environments such as chemical wastewater and high-salt wastewater, steel gates, as key water-blocking and drainage equipment, directly affect the reliability of the entire water conservancy system through their long-term stable operation. Currently, most steel gates adopt a single gate structure. Although the main body of the gate is made of stainless steel, which has a certain degree of corrosion resistance, it is still prone to pitting corrosion and crevice corrosion under long-term immersion in harsh wastewater media such as high chloride ions, strong acids, and strong alkalis. The passivation film on the stainless steel surface will be destroyed by the corrosive media, and impurities in the wastewater are easy to adhere to the gate surface, accelerating the corrosion process and shortening the service life of the gate.

[0003] However, to alleviate corrosion problems, anti-corrosion coatings are usually applied to the surface of the gate. But these coatings are prone to peeling and aging after long-term immersion. When recoating, the machine must be stopped and the water system must be suspended to replace or repair the gate, which is quite troublesome.

[0004] Based on the above situation, it is necessary to design a steel gate for highly corrosive environments to solve the above problems. Utility Model Content

[0005] This invention provides a steel gate for use in highly corrosive environments to solve the problems in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A steel gate for use in highly corrosive environments includes a gate slot frame, a container, and a treatment chamber. The gate slot frame has two gate plates that can be raised and lowered along it via a drive mechanism. The container contains a treatment liquid for surface treatment of the gate plates. There are two treatment chambers, each corresponding to one of the gate plates. The gate plates are located at the upper end of the gate slot frame. A liquid inlet mechanism for injecting treatment liquid into the treatment chamber is provided between the treatment chamber and the container. The two gate plates rise and fall alternately. When one gate plate rises into the treatment chamber, the liquid inlet mechanism is triggered, causing the treatment liquid to flow into the treatment chamber and soak the gate plate.

[0007] Preferably, the liquid inlet mechanism includes a piston rod slidably connected to the processing chamber and a liquid injection pipe disposed on the inner wall of the gate slot frame, and the output end of the liquid injection pipe is connected to the processing chamber. A tension spring is connected between the bottom of the piston rod and the processing chamber, and the piston rod is provided with an injection hole and a discharge hole. When the piston rod moves upward under the pressure of the gate plate in the processing chamber, the injection hole is located in the receiving box, and the discharge hole is aligned with the input end of the liquid injection pipe.

[0008] Preferably, the upper end of the gate is provided with a pressing part that is slidably and sealingly connected to the processing chamber, a return pipe is provided between the processing chamber and the container, and a one-way valve is provided on the return pipe that allows one-way flow from the processing chamber to the container.

[0009] Preferably, the bottom of the gate is provided with an upwardly arched elastic arc-shaped sealing part, and the bottom of the processing cavity is provided with a sealing groove corresponding to the elastic arc-shaped sealing part.

[0010] Preferably, the bottom outlet of the processing chamber is provided with a scraping part that abuts against the gate, and the scraping part is used to remove surface impurities when the gate is raised or lowered.

[0011] Preferably, the container is equipped with a liquid filling pipe and a liquid draining pipe.

[0012] The beneficial effects of this utility model are: by alternating the operation of the two gates, the gates can be removed from the highly corrosive sewage environment without stopping the machine, and anti-corrosion treatment can be carried out in the treatment chamber. At the same time, it avoids the trouble of disassembling the gate and stopping the machine for traditional maintenance, extends the service life of the gates, reduces the cost of frequent gate replacement, and solves the core problems of gate maintenance difficulty and easy corrosion in highly corrosive environments. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model; Figure 2 Schematic diagram of the cross-sectional structure provided by this utility model Figure 1 ; Figure 3 Schematic diagram of the cross-sectional structure provided by this utility model Figure 1 ; Figure 4 Provided by this utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 Provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0015] In the diagram, 1. Gate slot frame; 2. Drive mechanism; 3. Gate plate; 4. Container; 5. Processing chamber; 6. Liquid inlet mechanism; 61. Piston column; 62. Injection pipe; 7. Tension spring; 8. Injection hole; 9. Drain hole; 10. Pressing part; 11. Return pipe; 12. One-way valve; 13. Elastic arc-shaped sealing part; 14. Sealing groove; 15. Removal part; 16. Filling pipe; 17. Drain pipe. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0017] Reference Figures 1-5 As shown, a steel gate for highly corrosive environments includes a gate slot frame 1. The gate slot frame 1 mainly serves as the main support structure of the steel gate during use and can be cast from a high-strength corrosion-resistant alloy material. To facilitate use and reduce downtime of the water conservancy system during maintenance, the interior of the gate slot frame 1 is connected to two gate plates 3 that can be raised and lowered along the gate slot frame 1 via a drive mechanism 2. The drive mechanism 2 can be implemented using a dual-output shaft servo motor in conjunction with a ball screw transmission structure, etc. The two ball screws are fixedly connected to the top center position of the two gate plates 3 respectively. At the same time, the servo motor can be precisely started, stopped, and its lifting stroke controlled by a PLC control system to ensure the synchronization and reliability of the alternating lifting process of the two gate plates 3 and avoid problems such as lifting jamming or position deviation. A container 4 is fixedly installed on the top of the gate slot frame 1. In actual use, the container 4 can be made of corrosion-resistant polyethylene or similar material. It contains a treatment liquid for surface treatment of the gate plate 3. This treatment liquid can be a composite anti-corrosion passivation liquid, stainless steel sealant, or other liquids. It can quickly form a dense passivation protective film on the surface of the gate plate 3, and simultaneously repair surfaces that have already shown slight corrosion. A treatment chamber 5 is provided at the upper end of the gate slot frame 1. There are two treatment chambers 5, each corresponding to a gate plate 3. The inner wall of each treatment chamber 5 can be coated with a polytetrafluoroethylene anti-corrosion lining or similar coating to prevent the treatment liquid from affecting the treatment chamber. The gate itself causes corrosion. A liquid inlet mechanism 6 is provided between the treatment chamber 5 and the container 4 to inject treatment liquid into the treatment chamber 5. When maintenance is required, the two gates 3 rise and fall alternately. After one gate 3 rises into the treatment chamber 5, the liquid inlet mechanism 6 is triggered to allow the treatment liquid to flow into the treatment chamber 5 to soak the gate 3. This treats the gate 3 that has risen into the treatment chamber 5. At the same time, the other gate 3 continues to maintain the operation of the water system, realizing online anti-corrosion treatment without stopping the machine, extending the service life of the gate 3, reducing the cost of frequent replacement of the gate 3, and solving the problem of difficult gate maintenance in highly corrosive environments.

[0018] Reference Figures 1-5As shown, the liquid inlet mechanism 6 further includes a piston column 61 slidably connected to the top of the treatment chamber 5 and a liquid injection pipe 62 located on the inner wall of the gate slot frame 1. The outer periphery of the piston column 61 can be wrapped with a hard rubber, silicone, or other material, and its outer wall is sealed to the top opening of the treatment chamber 5. The liquid injection pipe 62 can be made of stainless steel, and its output end can be connected to the lower part of the side wall of the treatment chamber 5 through a flange to ensure that the treatment liquid can completely cover the soaking gate 3. A tension spring 7 is symmetrically connected between the bottom of the piston column 61 and the top of the treatment chamber 5. The tension spring 7 can be treated with anti-corrosion galvanizing to ensure its service life in humid environments. The piston column 61 is provided with a liquid injection hole 8 and a liquid discharge hole 9. When one of the gates 3 rises into the treatment chamber 5, the gate 3 will abut against the piston column 61. When the piston moves upward to its highest position under the pressure of the gate plate 3 in the processing chamber 5, the injection hole 8 is connected to the container 4, and the drain hole 9 is connected to the input end of the injection pipe 62. The processing liquid in the container 4 enters the piston column 61 through the injection hole 8, and then flows into the injection pipe 62 through the drain hole 9. The output end of the injection pipe 62 is located in the processing chamber 5 and below the gate plate 3. Finally, it is injected into the processing chamber 5 from the lower end of the processing chamber 5 and flows into both sides of the gate plate 3 through the gap between the gate plate 3 and the processing chamber 5. At this time, the gate plate 3 is protected by the processing liquid in the processing chamber 5. When the gate plate 3 descends, the piston column 61 moves downward under the reset action of the tension spring 7. The injection hole 8 is misaligned with the container 4, and the drain hole 9 is misaligned with the injection pipe 62. The liquid inlet mechanism 6 then stops supplying liquid.

[0019] Reference Figures 1-5 As shown, further, the upper end of the gate 3 can be integrally formed and connected to the pressing part 10, which is slidably sealed to the processing chamber 5. A return pipe 11 is provided between the processing chamber 5 and the container 4. A one-way valve 12 is provided on the return pipe 11, which allows one-way flow from the processing chamber 5 to the container 4. The one-way valve 12 can be made of corrosion-resistant ceramic valve core to avoid corrosion of the valve core by the chemical components in the processing liquid and to ensure the reliability of one-way flow. When the processing liquid in the processing chamber 5 reaches the set liquid level, the excess processing liquid can be returned to the container 4 through the return pipe 11 to realize the recycling of the processing liquid. At the same time, when the gate 3 in the processing chamber 5 descends, the pressing part 10 will squeeze the processing liquid in the processing chamber 5 during the descent process and squeeze the processing liquid into the container 4, reducing the continuous residence of the processing liquid in the processing chamber 5 and further realizing the recycling of the processing liquid.

[0020] Reference Figures 1-5As shown, furthermore, the bottom of the gate 3 is connected to an upwardly arched elastic arc-shaped sealing part 13. The elastic arc-shaped sealing part 13 can be made of oil-resistant and corrosion-resistant rubber or silicone material, and its arch height is of a suitable size, with good elastic deformation ability. A sealing groove 14 corresponding to the elastic arc-shaped sealing part 13 is opened at the bottom outlet of the treatment chamber 5. The sealing groove 14 is an arc-shaped groove structure, and a sealing strip can be provided inside. When the gate 3 rises to fully enter the interior of the treatment chamber 5, the elastic arc-shaped sealing part 13 and the sealing groove 14 fit tightly together, and fill the tiny gaps in the sealing surface through elastic deformation, reducing the leakage of the treatment liquid.

[0021] Reference Figures 1-5 As shown, further, a scraping part 15 is provided at the bottom outlet of the processing chamber 5 to abut against the gate 3. The scraping part 15 can be made of hard alloy material. It is in close contact with the surface of the gate 3. When the gate 3 rises, it scrapes off the impurities attached to its surface. The scraped impurities fall directly, so the surface of the gate 3 entering the processing chamber 5 is clean and tidy. At the same time, the impurities will fall along the arc surface of the elastic arc sealing part 13 during the falling process, and there will be no problem of impurities accumulating at the bottom of the gate 3.

[0022] Reference Figures 1-5 As shown, the top of the container 4 is provided with a liquid filling pipe 16, which can be connected to an external treatment liquid container for replenishing new treatment liquid. The bottom of the container 4 is provided with a drain pipe 17, which facilitates the periodic discharge of expired treatment liquid. In actual use, a transparent liquid level observation window can be provided in the middle of the side wall of the container 4. The observation window can be made of corrosion-resistant tempered glass, which makes it easy for operators to observe the liquid level and contamination of the treatment liquid in real time and replenish or replace it in a timely manner.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel gate for use in highly corrosive environments, characterized in that, include; The gate slot frame (1) has two gate plates (3) that can be raised and lowered along the gate slot frame (1) connected inside by a drive mechanism (2). A container (4) located above the gate slot frame (1) contains a treatment liquid for surface treatment of the gate plate (3); The processing chamber (5) has two chambers, which are arranged one-to-one with the gate (3). The processing chamber (5) is located at the upper end of the gate slot frame (1). A liquid inlet mechanism (6) for injecting processing liquid into the processing chamber (5) is provided between the processing chamber (5) and the container (4). The two gates (3) rise and fall alternately. After one of the gates (3) rises into the processing chamber (5), the liquid inlet mechanism (6) is triggered to make the processing liquid flow into the processing chamber (5) to soak the gate (3).

2. A steel gate for use in highly corrosive environments according to claim 1, characterized in that, The liquid inlet mechanism (6) includes a piston rod (61) slidably connected to the processing chamber (5) and a liquid injection pipe (62) provided on the inner wall of the gate slot frame (1). The output end of the liquid injection pipe (62) is connected to the processing chamber (5). A tension spring (7) is connected between the bottom of the piston rod (61) and the processing chamber (5). The piston rod (61) is provided with a liquid injection hole (8) and a liquid discharge hole (9). When the piston rod (61) is squeezed upward by the gate plate (3) in the processing chamber (5), the liquid injection hole (8) is located in the container, and the liquid discharge hole (9) is aligned with the input end of the liquid injection pipe (62).

3. A steel gate for use in highly corrosive environments according to claim 1, characterized in that, The upper end of the gate (3) is provided with a pressing part (10) that is sealed and slidably connected to the processing chamber (5). A return pipe (11) is provided between the processing chamber (5) and the container (4), and a one-way valve (12) is provided on the return pipe (11) that allows one-way flow from the processing chamber (5) to the container (4).

4. A steel gate for use in highly corrosive environments according to claim 1, characterized in that, The bottom of the gate (3) is provided with an upwardly arched elastic arc-shaped sealing part (13), and the bottom of the processing chamber (5) is provided with a sealing groove (14) corresponding to the elastic arc-shaped sealing part (13).

5. A steel gate for use in highly corrosive environments according to claim 1, characterized in that, The bottom outlet of the processing chamber (5) is provided with a scraping part (15) that abuts against the gate (3). The scraping part (15) is used to treat surface impurities when the gate (3) is raised or lowered.

6. A steel gate for use in highly corrosive environments according to claim 1, characterized in that, The container (4) is equipped with a liquid filling pipe (16) and a liquid draining pipe (17).

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