Modular support for oil cylinders of ion-exchange membrane electrolyzers

Abstract

The utility model discloses a modularization support of ion exchange membrane electrolytic cell oil cylinder, including support base, the hydraulic cylinder of being placed on support base, the bottom plate of U type bracket is solidly connected with the piston rod of hydraulic cylinder, and two guide rails are solidly arranged between two vertical boards of U type bracket, and one vertical board inner surface is connected with rubber lining, and one locking bolt passes through another vertical board, and locking bolt solidly connected with two baffle of being located at the both sides of another vertical board, and the inner end of locking bolt is connected with the compression plate through screw thread, and the compression plate is slid on two guide rails, and the inner surface of compression plate is connected with rubber lining, the cylinder tube of hydraulic cylinder is connected with the piston rod of four support leg oil cylinders, and the cylinder tube bottom of support leg oil cylinder is solidly connected with gasket, the utility model has the advantages of safe and efficient, good corrosion resistance and good universality, and guarantees long -term normal operation, can reduce the installation and maintenance cost of electrolytic cell oil cylinder.

Description

Technical Field

[0001] This utility model relates to a modular support, and more particularly to a modular support for the oil cylinder of an ion membrane electrolyzer. Background Technology

[0002] With the large-scale application of alkaline water hydrogen production technology, and given that ion-exchange membrane electrolyzers are commonly used equipment in alkaline water hydrogen production, the existing electrolyzer cylinders are mostly installed on fixed supports, leading to severe challenges in the maintenance of the electrolyzer cylinders, mainly in the following aspects: Highly corrosive environment: The electrolyte (30% KOH) in the electrolytic cell is highly alkaline (pH>13) and the high humidity environment of the electrolytic cell will accelerate the corrosion of conventional carbon steel metal structures, causing the lifespan of conventional carbon steel supports to be less than 6 months. The safety risks are significant: the electrolytic cell cylinders (Φ200-280mm, weighing 2-4 tons) are mounted on a bracket, and disassembly requires suspended operation. Traditional support frames are prone to tipping over. Industry reports over the past three years show that cylinder fall accidents account for 37% of maintenance accidents. Insufficient adaptability: Differences in electrolytic cell models lead to variations in the size of the electrolytic cell cylinders (diameter 100-300mm), resulting in low replacement efficiency of existing fixed supports and increasing maintenance time by 2.5 hours per maintenance cycle. Lack of intelligent monitoring: Traditional supports do not have real-time load feedback function, and weight deviation of the electrolytic cell cylinder is prone to cause damage to the sealing surface (uneven force exceeding ±5% will lead to seal failure), affecting normal operation. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a modular support for the cylinder of an ion-exchange membrane electrolyzer. This support has the advantages of safety, high efficiency, good corrosion resistance, and good versatility, and ensures long-term normal operation while reducing the installation and maintenance costs of the electrolyzer cylinder.

[0004] To achieve the above objectives, this utility model provides a modular support for an ion-exchange membrane electrolyzer cylinder, comprising a support base and a hydraulic cylinder placed on the support base; characterized in that: the base plate of the U-shaped bracket is fixedly connected to the piston rod of the hydraulic cylinder, two guide rails are fixedly provided between the two upright plates of the U-shaped bracket, a rubber pad is connected to the inner surface of one upright plate, a locking bolt passes through the other upright plate, the locking bolt is fixedly connected to two baffles located on both sides of the other upright plate, the inner end of the locking bolt is threadedly connected to a pressure plate, the pressure plate is slidably disposed on the two guide rails, and a rubber pad is connected to the inner surface of the pressure plate; the cylinder barrel of the hydraulic cylinder is connected to the piston rods of four support leg cylinders, and a gasket is fixedly connected to the bottom of the cylinder barrel of each support leg cylinder; In use, the electrolytic cell cylinder is pressed against the rubber pad on the inner surface of the upright plate. By rotating the locking bolt, the rubber pad of the pressure plate clamps the electrolytic cell cylinder. The U-shaped bracket can be raised and lowered by the hydraulic cylinder, which facilitates the installation and disassembly of the electrolytic cell cylinder. When disassembling the electrolytic cell cylinder, oil is supplied to the four support leg cylinders, causing their cylinder barrels to extend and contact the ground, providing stable support for the hydraulic cylinder and U-shaped bracket, reducing the risk of tipping over, and has the advantages of safety and efficiency. The distance between the pressure plate and the upright plate can be adjusted along the two guide rails, which is suitable for the width of different models of electrolytic cell cylinders. The hydraulic cylinder can be matched with the installation height of different models of electrolytic cell cylinders, which has good versatility and can reduce the installation and maintenance costs of the electrolytic cell cylinder. As a further improvement of this utility model, the piston rods of the four outrigger cylinders are evenly distributed around the cylinder barrel of the hydraulic cylinder, and the gaskets are anti-slip ceramic gaskets; this can further improve stability and anti-slip effect, and ensure safety. As a further improvement of this utility model, the rubber gaskets are all made of alkali-resistant nitrile rubber, which can improve the corrosion resistance of the U-shaped bracket. As a further improvement of this utility model, the bottom outer side of the support base is provided with a liquid accumulation tank, and the support base is provided with two or more inclined guide channels connecting its upper end to the liquid accumulation tank. A drain valve is provided in the liquid accumulation tank. The guide channels can quickly drain the leaked electrolyte into the liquid accumulation tank and discharge it through the drain valve, reducing the risk of residual corrosion and ensuring the durability of the equipment in a strong alkaline environment. As a further improvement of this utility model, each of the outrigger cylinders is equipped with a hydraulically controlled check valve; when a single outrigger cylinder fails, the anti-backflow function of its hydraulically controlled check valve can still provide a large supporting force and ensure safety. As a further improvement of this utility model, the outer end of the locking bolt is provided with a locking nut; it can lock the clamped state. As a further improvement of this utility model, an embedded pressure sensor is provided on the outer side of the piston rod top of the hydraulic cylinder; it can detect the weight distribution of the electrolytic cell cylinder in real time, prevent overload damage, and ensure long-term normal operation. In summary, this utility model has the advantages of safety, high efficiency, good corrosion resistance and versatility, and ensures long-term normal operation, which can reduce the installation and maintenance costs of electrolytic cell cylinders. Attached Figure Description

[0005] Figure 1 This is a front view of an embodiment of the present utility model.

[0006] Figure 2 for Figure 1 Top view.

[0007] Figure 3 for Figure 1 Top view of the U-shaped bracket.

[0008] Figure 4 for Figure 1 Front view of the hydraulic cylinder.

[0009] Figure 5 for Figure 1 Front view of the hydraulic cylinder of the middle support leg.

[0010] Figure 6 for Figure 5 Top view. Detailed Implementation

[0011] To better understand the purpose, technical solution, and beneficial effects of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model, but does not limit the scope of protection of this utility model to the following embodiments.

[0012] like Figures 1 to 6 As shown, this embodiment of a modular support for an ion-exchange membrane electrolyzer cylinder includes a support base 1 and a hydraulic cylinder 2 placed on the support base 1. The hydraulic cylinder 2 is connected to the support base 1 via studs 3 at the bottom of its cylinder barrel. A U-shaped bracket 4 is fixedly connected to the piston rod of the hydraulic cylinder 2 via studs 5 fixedly connected to its base plate. An embedded pressure sensor 6 is provided on the outer side of the top of the piston rod of the hydraulic cylinder 2. Two guide rails 7 are fixed between the two upright plates of the U-shaped bracket 4. A rubber gasket 8 is connected to the inner surface of one upright plate 11. A locking bolt 9 passes through the other upright plate 12. The locking bolt 9 is fixedly connected to two baffles 10 located on both sides of the other upright plate. The inner end of the locking bolt 9 is threadedly connected to a pressure plate 13. The pressure plate 13 is slidably disposed on the two guide rails 7. A rubber gasket 14 is connected to the inner surface of the pressure plate 13. Both rubber gaskets 8 and 14 are alkali-resistant nitrile rubber. A locking nut 15 is provided on the outer end of the locking bolt 9. Four ear plates 16 are fixedly connected to the outer circle of the cylinder of hydraulic cylinder 2. The piston rods of the four outrigger cylinders 17 are evenly distributed around the cylinder of hydraulic cylinder 2. Each piston rod of the four outrigger cylinders 17 is fixedly connected to a set of clamping plates 18. The clamping plates 18 and the corresponding ear plates 16 are connected by pins, so that the cylinder of hydraulic cylinder 2 is connected to the piston rods of the four outrigger cylinders 17. Anti-slip ceramic pads 19 are fixedly connected to the bottom of the cylinder of each outrigger cylinder 17. Each outrigger cylinder 17 is equipped with a hydraulic control check valve 20. The support base 1 is conical. A liquid accumulation groove 21 is provided on the outer side of the bottom of the support base 1. The support base 1 is provided with two inclined guide grooves 22 connecting its upper end to the liquid accumulation groove 21. A drain valve 23 is provided in the liquid accumulation groove 21. In use, the electrolytic cell cylinder is placed close to the rubber pad 8 on the inner surface of the upright plate 11. By rotating the locking bolt 9, the rubber pad 14 of the pressure plate 13 clamps the electrolytic cell cylinder. The U-shaped bracket 4 can be raised and lowered by the hydraulic cylinder 2, facilitating the installation and disassembly of the electrolytic cell cylinder. When disassembling the electrolytic cell cylinder, oil is supplied to the four support leg cylinders 17 in a coordinated manner, causing their cylinder barrels to extend and contact the ground, providing stable support for the hydraulic cylinder 2 and the U-shaped bracket 4. The anti-slip ceramic pad 19 has a friction coefficient ≥0.6, providing good anti-slip effect and reducing the risk of tipping over, thus offering advantages of safety and efficiency. The pressure plate 13 can be adjusted along the two guide rails 7 to maintain the distance from the upright plate 11, making it suitable for different models of electrolytic cell cylinders. In addition, the hydraulic cylinder 2 can match the installation height of different models of electrolytic cell cylinders, resulting in good versatility and reducing the installation and maintenance costs of the electrolytic cell cylinder. Rubber gaskets 8 and 14 are both made of alkali-resistant nitrile rubber. With the addition of the guide groove 22, the leaked electrolyte can be quickly discharged into the liquid collection tank 21 and discharged through the drain valve 23, reducing the risk of residual corrosion and ensuring the corrosion resistance of the equipment in a strong alkaline environment. When a single outrigger cylinder 17 fails, its hydraulic check valve 20's anti-backflow function can still provide a large supporting force to ensure safety. The embedded pressure sensor 6 can detect the weight distribution of the electrolytic cell cylinder in real time, prevent overload damage, and ensure the long-term normal operation of the support.

Claims

1. A modular support for the hydraulic cylinders of an ion-exchange membrane electrolyzer, comprising a support base, a hydraulic cylinder placed on the support base; characterized in that: The base plate of the U-shaped bracket is fixedly connected to the piston rod of the hydraulic cylinder. Two guide rails are fixed between the two upright plates of the U-shaped bracket. A rubber pad is connected to the inner surface of one upright plate. A locking bolt passes through the other upright plate. The locking bolt is fixedly connected to two baffles located on both sides of the other upright plate. The inner end of the locking bolt is connected to the pressure plate by a thread. The pressure plate is slidably mounted on the two guide rails. The inner surface of the pressure plate is connected to a rubber pad. The cylinder barrel of the hydraulic cylinder is connected to the piston rods of the four outrigger cylinders. Gaskets are fixedly connected to the bottom of the cylinder barrels of the outrigger cylinders.

2. An ion-exchange membrane electrolyzer oil cylinder modular support according to claim 1, characterized in that: The piston rods of the four outrigger cylinders are evenly distributed around the cylinder barrel of the hydraulic cylinder, and the gaskets are anti-slip ceramic gaskets.

3. An ion-exchange membrane electrolyzer oil cylinder modular support according to claim 1 or 2, characterized in that: All rubber gaskets are made of alkali-resistant nitrile rubber.

4. An ion-exchange membrane electrolyzer oil cylinder modular support according to claim 3, characterized in that: The base of the support is provided with a liquid accumulation tank on the outer circumference of the bottom. The base is provided with two or more inclined guide channels connecting its upper end to the liquid accumulation tank. A drain valve is provided in the liquid accumulation tank.

5. An ion-exchange membrane electrolyzer oil cylinder modular support according to claim 4, characterized in that: Each of the outrigger cylinders is equipped with a hydraulically controlled one-way valve.

6. The modular support for an ion-exchange membrane electrolyzer cylinder according to claim 5, characterized in that: The outer end of the locking bolt is provided with a locking nut.

7. The modular support for an ion-exchange membrane electrolyzer cylinder according to claim 6, characterized in that: An embedded pressure sensor is provided on the outer side of the piston rod tip of the hydraulic cylinder.

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