Cavity type end pressing plate

Abstract

The utility model relates to a cavity type end pressing plate which comprises a sealing plate. The seal head is provided with a cavity, the seal head is welded by the seal plate and tightly covers the cavity, the cavity is enclosed into a closed cavity by the seal plate and the seal head, the closed cavity is filled with multiphase fluid, and the multiphase fluid in the closed cavity has different counterforces on the inner wall of the closed cavity; the reinforcing ribs are arranged on the same side of the sealing plate and the sealing head, and the reinforcing ribs abut against the sealing plate and the sealing head and are welded to the sealing plate and the sealing head; according to the utility model, the closed cavity is arranged, so that the end pressing plate is light, and the mass of the end pressing plate is greatly reduced; the closed cavity is filled with multi-phase fluid, so that fine adjustment and control over structural deformation of the end pressing plate are achieved, and the structural strength and rigidity of the end pressing plate are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production by electrolysis of water, in particular to a cavity type end pressure plate. Background Art

[0002] With the rapid advancement of science and technology, the green hydrogen industry has also developed rapidly. At present, the method of producing hydrogen by electrolysis of water is one of the main ways to prepare green hydrogen. The hydrogen obtained by electrolysis of water is burned to regenerate water without pollution, which can achieve the sustainable use of green energy, thereby promoting industrial production to achieve the goal of energy conservation and carbon reduction. However, while the method of producing hydrogen by electrolysis of water brings clean energy to human production and life, it also uses and consumes a large amount of steel products.

[0003] In traditional water electrolysis hydrogen production devices, the end pressure plate is a key component used to press the two sides of the electrolyzer to ensure the stability and integrity of the electrolyzer structure during the water electrolysis process. Thick steel plates are often used as the end pressure plate structure. However, the current design of using thick steel plates as end pressure plates has problems such as high material consumption and high device weight. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem of large thickness and mass of the end pressure plate in the prior art, which leads to large consumption of steel, and further provide a cavity-type end pressure plate. By setting a closed cavity and filling the closed cavity with fluid, the structural strength and rigidity of the end pressure plate are ensured, the end pressure plate is made lightweight, and the mass of the end pressure plate is greatly reduced.

[0005] In order to solve the above technical problems, the utility model provides a cavity type end pressure plate, comprising:

[0006] Seal the board;

[0007] A sealing head, wherein the sealing head is provided with a cavity, the sealing plate is welded to the sealing head and covers the cavity tightly, and the sealing plate and the sealing head enclose the cavity to form a closed cavity, and the closed cavity is filled with a multiphase fluid, wherein the multiphase fluid in the closed cavity has different reaction forces on the inner wall of the closed cavity;

[0008] The reinforcing ribs are arranged on the same side of the sealing plate and the sealing head, and the reinforcing ribs are tightly pressed against and welded to the sealing plate and the sealing head.

[0009] In one embodiment of the present invention, a plurality of sealing plate fixing holes are provided on the edge of the sealing plate, and the plurality of sealing plate fixing holes are evenly distributed in a ring shape.

[0010] In an embodiment of the present invention, the sealing head and the closed cavity are both configured as convex structures.

[0011] In one embodiment of the utility model, a plurality of the reinforcing ribs are included, and the number of the plurality of the reinforcing ribs is a multiple of 4, and the plurality of the reinforcing ribs extend radially along the head and are evenly distributed.

[0012] In one embodiment of the utility model, the reinforcing ribs are configured as reinforcing rib plates, and the reinforcing rib plates are vertically welded to the sealing plate and the sealing head, and the length of the reinforcing rib plates is 10 to 2750 mm, and the thickness of the reinforcing rib plates is 5 to 100 mm.

[0013] In an embodiment of the present invention, the length of the sealing head is 10 to 5000 mm, and the thickness of the sealing head is 3 to 50 mm.

[0014] In one embodiment of the present invention, the head is configured as an elliptical head, a dish-shaped head, a spherical cap head, or a hemispherical head structure.

[0015] In one embodiment of the present invention, the sealing plate is circular, the diameter of the sealing plate is 10 to 5500 mm, and the thickness of the sealing plate is 10 to 800 mm.

[0016] In one embodiment of the present invention, the sealing plate, the sealing head and the reinforcing rib plate are made of metal or non-metal material, and the metal material includes carbon steel or alloy steel.

[0017] In one embodiment of the present invention, the multiphase fluid is configured as liquid or gas or a liquid-solid mixed fluid.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The cavity-type end pressure plate described in the utility model reduces material consumption and the weight of the end pressure plate by arranging a cavity on the head; the combination of the closed cavity and the head improves the controllable accuracy and flexibility of the deformation of the end pressure plate structure by setting different volumes of the head and the capacity of the closed cavity; a multiphase fluid is filled in the cavity to resist and balance the pressure on the other side, so as to achieve fine-tuning and control of the deformation of the head structure, ensuring that the deformation variables of the end pressure plate are consistent with those of traditional thick steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0021] Figure 1 It is a structural schematic diagram of the cavity type end pressure plate of the utility model.

[0022] Figure 2 for Figure 1 A cross-sectional schematic diagram of the cavity-type end pressure plate of AA is shown.

[0023] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Sealing plate; 1.1. Sealing plate fixing hole; 2. Reinforcing rib plate; 3. Sealing head; 4. Closed cavity. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Example

[0026] In one embodiment of the present invention, referring to Figure 1 and 2 As shown, the utility model is a cavity-type end pressure plate, which is used to press the two ends of the electrolytic cell body to prevent the electrolytic cell body from deformation, leakage, etc. during the electrolysis of water, including:

[0027] The sealing plate 1 has a groove on one side. The sealing plate 1 can be designed with parameters according to actual needs and implemented with appropriate length and thickness. Its size is larger than the size of the end of the electrolytic cell body and is provided with a connection structure.

[0028] The sealing head 3 is concave to form a cavity, the cavity mouth of the cavity can be implemented as a circle, the groove of the sealing plate 1 is welded to the straight-side open end of the sealing head 3, specifically, the straight-side open end of the sealing head 3 is inserted into the groove of the sealing plate 1 so that the sealing plate 1 tightly covers the cavity and then welded, the sealing plate 1 and the sealing head 3 enclose the cavity to form an airtight closed cavity 4, the volume of the closed cavity 4 should not be less than half of the volume of the sealing head 3; the closed cavity 4 is filled with a multiphase fluid, the multiphase fluid can be one fluid or multiple fluids, and the multiphase fluid in the closed cavity exerts pressure on the inner wall of the closed cavity 4 Adding a reaction force, specifically, when injecting liquid or liquid-solid mixed fluid, a certain pressure can be applied to the liquid or liquid-solid mixed fluid through the initial system to ensure that there is no gas phase, so as to counteract and balance the pressure on the other side of the head 3, and ensure the stability of the end pressure plate under different working conditions, so that the liquid or liquid-solid mixed fluid still has pressure after entering the closed cavity; when injecting gas, the filling pressure of the initial gas is designed according to actual needs, and the gas phase in the closed cavity 4 continuously changes in pressure according to the change of the use temperature, so as to counteract and balance the pressure on the other side of the head 3, and ensure the stability of the end pressure plate under working conditions;

[0029] It also includes reinforcing ribs, which are arranged on one side of the head 3 and the sealing plate 1. Specifically, they are relative to the side of the sealing plate for pressing the electrolytic cell body, and the bottoms of the reinforcing ribs are pressed against the sealing plate and the head and welded. The reinforcing ribs can improve the structural strength of the end pressure plate and reduce the mass of the end pressure plate, wherein the arc end of the bottom of the reinforcing rib is tangent to the outer edge of the head 3 and welded; the head 3 can be designed with parameters according to actual needs and implemented with appropriate length and thickness.

[0030] In one embodiment of the present invention, referring to Figure 1 As shown, the edge of the sealing plate 1 is provided with 8 sealing plate fixing holes 1.1, the number of the sealing plate fixing holes 1.1 is always consistent with the number of reinforcing ribs, and the sealing plate fixing holes 1.1 are arranged between two reinforcing ribs, and the multiple sealing plate fixing holes 1.1 are evenly distributed in a ring shape, and the sealing plate fixing holes 1.1 are implemented as circular holes. The method for fixing the end pressure plate can be implemented as multiple screws passing through the multiple sealing plate fixing holes 1.1 respectively and tightening the end pressure plate with nuts to limit the position.

[0031] In one embodiment of the present invention, referring to Figure 2 As shown, the head 3 and the closed cavity 4 are both configured as convex structures, and the side walls of the head 3 have a uniform thickness. The thickness of the fluid gradually decreases from the middle of the closed cavity 4 to both sides, which is conducive to the fluid forming a stable whole.

[0032] In one embodiment of the present invention, referring to Figure 1 As shown, the eight reinforcing ribs and the head 3 are all arranged on the same side of the sealing plate 1. When one side of the sealing plate 1 abuts against the end of the electrolytic cell body, the reinforcing ribs and the head 3 are on the other side of the sealing plate 1 to balance and resist the pressure at the end of the electrolytic cell body. The eight reinforcing ribs extend radially along the head 3 to the top of the head 3 but do not intersect, and the eight reinforcing ribs are evenly distributed and radially distributed.

[0033] In one embodiment of the present invention, referring to Figure 1 and 2 As shown, the reinforcing rib is configured as a reinforcing rib plate 2, and a plane end and a curved end are provided at the bottom of the reinforcing rib plate 2. The curved end of the reinforcing rib plate 2 is vertically welded to the outer edge of the head 3, and the curved end can make the reinforcing rib plate 2 close to the outer edge of the head 3; the plane end of the reinforcing rib plate 2 is vertically welded to the sealing plate 1, and the plane end can make the reinforcing rib plate 2 close to the sealing plate 1; the number of the reinforcing rib plates 2 is set to a multiple of 4, such as 4, 8, 12, etc. In the present embodiment, there are 8 reinforcing rib plates 2; the length of the reinforcing rib plate 2 is 10 to 2750 mm, and the thickness of the reinforcing rib plate 2 is 5 to 100 mm.

[0034] In one embodiment of the present invention, referring to Figure 1As shown, the length of the head 3 is 10 to 5000 mm, and the thickness of the head 3 is 3 to 50 mm. By setting and replacing heads of different volumes and diameters, the end pressure plate can have different deformation amounts, thereby controlling and adjusting the structural deformation amount of the end pressure plate.

[0035] In one embodiment of the present invention, referring to Figure 2 As shown, the head 3 is configured as an elliptical head, and the head 3 can also be implemented as a dish-shaped head or a spherical head or a hemispherical head structure, so that the end pressure plate has different deformation amounts, thereby controlling and adjusting the structural deformation amount of the end pressure plate.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, the sealing plate 1 is circular, and the diameter of the sealing plate 1 is 10 to 5500 mm, and the thickness of the sealing plate 1 is 10 to 800 mm, so as to adapt to electrolytic cell bodies of different sizes.

[0037] In one embodiment of the present invention, the sealing plate 1, the sealing head 3 and the reinforcing rib plate 2 are made of metal or non-metal material, and the metal material includes carbon steel or alloy steel. The use of metal material is beneficial to improving the structural strength of the end pressure plate, and the use of non-metal material is beneficial to reducing the weight of the end pressure plate.

[0038] In one embodiment of the utility model, the multiphase fluid can be set to a liquid, such as water, heat transfer oil, etc.; the multiphase fluid can also be set to a gas, such as air, inert gas, etc.; the multiphase fluid can also be set to a liquid-solid mixed fluid, such as a combination of water and heat transfer metal particles, or a combination of heat transfer oil and heat transfer metal particles.

[0039] The working principle of the cavity type end pressure plate of the utility model is:

[0040] The two end pressure plates are coaxially arranged at the two ends of the cylindrical electrolytic cell body, and the sealing plate 1 abuts the end of the electrolytic cell. After a plurality of screws pass through the sealing plate fixing holes 1.1 of the two end pressure plates, the screws are tightened with nuts to limit the two end pressure plates, ensuring that the two end pressure plates always press tightly against the cylindrical electrolytic cell body from both sides to prevent the electrolytic cell body from deformation. When the electrolytic cell body undergoes slight lateral deformation, the head 3 is subjected to the force of the electrolytic cell body, and the pressure of the multiphase fluid itself can counteract and balance the force, thereby fine-tuning and controlling the structural deformation of the head 3, thereby ensuring that the deformation variables of the end pressure plate are consistent with those of the traditional thick steel plate, thereby ensuring the structural strength and rigidity of the end pressure plate.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A cavity type end pressure plate, characterized in that: include, Seal the board; A sealing head, wherein the sealing head is provided with a cavity, the sealing plate is welded to the sealing head and covers the cavity tightly, and the sealing plate and the sealing head enclose the cavity to form a closed cavity, and the closed cavity is filled with a multiphase fluid, wherein the multiphase fluid in the closed cavity has different reaction forces on the inner wall of the closed cavity; The reinforcing ribs are arranged on the same side of the sealing plate and the sealing head, and the reinforcing ribs are tightly pressed against and welded to the sealing plate and the sealing head.

2. A cavity type end pressure plate according to claim 1, characterized in that: The edge of the sealing plate is provided with a plurality of sealing plate fixing holes, and the plurality of sealing plate fixing holes are evenly distributed in a ring shape.

3. The cavity type end pressure plate according to claim 1, characterized in that: The sealing head and the closed cavity are both configured as convex structures.

4. The cavity type end pressure plate according to claim 1, characterized in that: It comprises a plurality of reinforcing ribs, and the number of the plurality of reinforcing ribs is a multiple of 4, and the plurality of reinforcing ribs extend along the radial direction of the head and are evenly distributed.

5. A cavity type end pressure plate according to claim 1 or 4, characterized in that: The reinforcing ribs are configured as reinforcing rib plates, which are vertically welded to the sealing plate and the sealing head. The length of the reinforcing rib plates is 10 to 2750 mm, and the thickness of the reinforcing rib plates is 5 to 100 mm.

6. A cavity type end pressure plate according to claim 5, characterized in that: The sealing plate, the sealing head and the reinforcing rib plate are made of metal or non-metal material, and the metal material includes carbon steel or alloy steel.

7. A cavity type end pressure plate according to claim 1 or 3, characterized in that: The length of the sealing head is 10 to 5000 mm, and the thickness of the sealing head is 3 to 50 mm.

8. The cavity type end pressure plate according to claim 7, characterized in that: The sealing head is configured as an elliptical sealing head, a dish-shaped sealing head, a spherical cap-shaped sealing head or a hemispherical sealing head structure.

9. A cavity type end pressure plate according to claim 1 or 2, characterized in that: The sealing plate is circular, has a diameter of 10 to 5500 mm, and has a thickness of 10 to 800 mm.

10. The cavity type end pressure plate according to claim 1, characterized in that: The multiphase fluid is configured as liquid or gas or a liquid-solid mixed fluid.

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