CN212077161U - A high pressure water electrolyzer - Google Patents

Abstract

The utility model relates to a high-pressure water electrolyzer, which belongs to the technical field of electrolyzers. The high-pressure water electrolyzer includes a casing, an upper end cover, a lower end cover, a first elastic gasket, a second elastic gasket, an anode connection terminal, and a cathode connection terminal; between the anode connection terminal and the cathode connection terminal A membrane electrode assembly and a bipolar plate are provided; between the anode connection terminal and the membrane electrode assembly, between the cathode connection terminal and the membrane electrode assembly, and between the bipolar plate and the membrane electrode assembly A sealing ring is arranged between them; the anode terminal, the cathode terminal and the bipolar plate are all hexagonal structures; the upper end cover, the lower end cover, the first elastic sealing gasket, the second elastic sealing gasket, the membrane electrode assembly It is a circular structure with the same size as the outer circle of the hexagon. The high-pressure water electrolyzer of the utility model has the advantages of small pressure drop, good structure stability and long service life, and has broad application prospects.

Description

A high pressure water electrolyzer

technical field

The utility model belongs to the technical field of electrolyzers, in particular to a high-pressure water electrolyzer.

Background technique

With the rapid development of new energy, new energy vehicles have entered people's lives. Due to their "zero emission" characteristics, they have gradually become the target of major manufacturers. New energy vehicles generate electric current that can drive the engine through the electrolysis and reaction of hydrogen and oxygen in chemical electrolytes respectively. The reacted oxygen can be obtained from the air, while hydrogen needs to be obtained through a hydrogen generator.

At present, the most commonly used hydrogen generator is a water electrolyzer. Hydrogen is obtained from the principle of generating hydrogen and oxygen through the electrolysis of water, and then it is dried and compressed and stored in a high-pressure gas storage bottle for hydrogenation. The recently developed high-pressure electrolyzers are expected to replace atmospheric-pressure electrolyzers, especially without mechanical compressors, making electrolytic hydrogenation simple and easy. In the high-pressure electrolyzer, the bipolar plate is an important component of the high-pressure water electrolyzer, and its structure is directly related to the stability of the electrolyzer, hydrogen production efficiency and other important factors. Most of the high-pressure water electrolyzers on the market have a cylindrical structure. The cylindrical structure is beneficial to the high pressure resistance of the electrolyzer. Due to the arc of the circular bipolar plate, its pressure drop will definitely increase, thus affecting the structural stability of the electrolyzer.

Utility model content

The purpose of this utility model is to provide a high-pressure water electrolyzer, which is used for on-site hydrogenation, and realizes the direct coupling from electricity to the hydrogen storage tank, so as to solve the problem that the high-pressure water electrolyzer in the prior art has a large pressure drop in the internal structure, gas and The uneven distribution of water leads to problems such as poor stability and short life of the electrolyzer.

In order to achieve the above object, the utility model realizes through the following technical solutions:

A high-pressure water electrolyzer, comprising a sleeve body, an upper end cover disposed at one end of the sleeve body, a first elastic sealing gasket disposed inside the upper end cover, and an anode terminal disposed inside the first elastic sealing gasket , a lower end cover arranged on the other end of the sleeve body, a second elastic gasket arranged on the inner side of the lower end cover, a cathode connection terminal arranged inside the second elastic gasket, and a cathode connection terminal arranged on the anode connection terminal A plurality of membrane electrode assemblies and a plurality of bipolar plates between the cathode connection terminals, the bipolar plates are arranged between the adjacent membrane electrode assemblies; the anode connection terminal and the cathode connection terminal are arranged adjacent to the membrane electrode assembly;

A sealing ring is provided between the anode connection terminal and the membrane electrode assembly, between the cathode connection terminal and the membrane electrode assembly, and between the bipolar plate and the membrane electrode assembly;

The anode terminal, the cathode terminal, and the bipolar plate are all regular hexagonal structures. The outer circle of the regular hexagonal structure is a circular structure with the same size; the diameter of the sealing ring is equal to the diameter of the inner circle of the regular hexagonal structure.

Further, the circular structure is provided with a plurality of screw holes corresponding to the circumferential direction, and the screw holes are arranged on the outer side of the inscribed regular hexagon corresponding to the circular structure and the regular hexagonal structure.

Further, the screw holes are provided with screws, and the upper end cover, the lower end cover, the first elastic sealing gasket, the second elastic sealing gasket, and the membrane electrode assembly are connected and fixed by the screws. In this way, the stability of the structure can be enhanced, and the screw holes are arranged on the outer side of the inscribed regular hexagon, so the screws do not contact the anode terminal, the cathode terminal and the bipolar plate. The space between the anode terminal and the membrane electrode assembly, the space between the cathode terminal and the membrane electrode assembly, and the space between the bipolar plate and the membrane electrode assembly are sealed by sealing rings In this way, a sealed space for supplying water to the anode plate and the cathode plate can be formed, and the leakage of water and gas can be effectively prevented.

The anode terminal, the cathode terminal and the bipolar plate are arranged in a regular hexagonal structure, so that it has the largest reaction area in the circular structure, and is conducive to the uniform distribution of gas and liquid, and at the same time reduces the high-pressure water electrolyzer. The pressure drop increases the stability of the structure.

Further, the end corners of the regular hexagonal structure are set as rounded corner structures tangent to the inner wall of the sleeve body, which can further enhance the stability of the overall structure.

Further, the surface of the bipolar plate is provided with an oxide coating, a noble metal coating or a nitride layer, etc., to enhance the corrosion resistance of the bipolar plate.

Further, the upper end cap, the lower end cap, the first elastic sealing gasket, the second elastic sealing gasket, the anode terminal, the cathode terminal, the membrane electrode assembly, and the bipolar plate are all provided with corresponding water inlets. A first through hole and a second through hole, a third through hole for water outlet and output of generated oxygen, and a fourth through hole for water outlet and output of generated hydrogen.

Further, the anode terminal is provided with an anode terminal at the geometric center of one side face close to the upper end cover; the upper end cover and the geometric center of the first elastic gasket are both provided with the anode terminal. A matching fifth through hole through which the anode terminal is connected to an external power line.

Further, the cathode connection terminal is provided with a cathode connection post at the geometric center of a side face close to the lower end cover; the geometric center of the lower end cover and the second elastic sealing gasket is provided with the cathode connection post. A matching sixth through hole through which the cathode terminal is connected to an external power line.

Further, the membrane electrode assembly includes a diaphragm, an anode plate disposed on the side of the diaphragm close to the anode connection terminal, and a cathode plate disposed on the side of the diaphragm close to the cathode connection terminal.

Further, the airtight area formed between the anode connection terminal and the diaphragm closest to the anode connection terminal, and the airtight area formed between the bipolar plate and the diaphragm closest to the bipolar plate Each section is an anode chamber, and an anode plate is arranged between the bipolar plate and the diaphragm forming the anode chamber; a second through hole and a fourth through hole located in the anode chamber are arranged a conduit. The first conduit is used to isolate the water flow and the generated oxygen in the anode chamber from the second through hole and the fourth through hole.

Further, the airtight area formed between the cathode connection terminal and the diaphragm closest to the cathode connection terminal, and the airtight area formed between the bipolar plate and the diaphragm closest to the bipolar plate The intervals are all cathode chambers, and a cathode plate is arranged between the bipolar plate and the diaphragm that form the cathode chamber; a first through hole and a third through hole located in the cathode chamber are provided Two conduits. The second conduit is used to isolate the water flow in the cathode chamber and the generated hydrogen gas from the first through hole and the third through hole.

Further, elastic sealing rings are provided on the outer sides of the first conduit and the second conduit. The elastic sealing ring enables the first conduit to be sealed with the second through hole and the fourth through hole in the anode chamber, and the second conduit and the first conduit in the cathode chamber. The through hole and the third through hole are in sealing cooperation. In this way, the first conduit and the second through hole and the fourth through hole and between the second conduit and the first through hole and the third through hole are completely sealed to prevent the hydrogen and oxygen in the water from being mixed together.

The water flows in from the first through hole of the upper end cap, and flows through the anode chamber to electrolyze to generate oxygen, and the generated oxygen flows out from the third through hole of the lower end cap together with the water flow; the water flow flows in from the second through hole of the upper end cap and flows through the cathode Hydrogen is generated by electrolysis in the chamber, and the generated hydrogen flows out from the fourth through hole of the lower end cover together with the water flow; the outside of the third through hole and the fourth through hole are respectively connected with a gas-liquid separator, and after separation by the gas-liquid separator, pure hydrogen and pure oxygen.

Further, an insulating sheath is provided on the outside of the anode terminal and the cathode terminal to prevent electric leakage between the anode terminal and the upper end cover, and the cathode terminal and the lower end cover, thereby improving the safety in use.

Further, the first elastic sealing gasket and the second elastic sealing gasket are both insulating rubber material sealing gaskets, which not only isolates the current, but also provides expansion space for the electrolyzer under pressure.

In the technical scheme proposed by the utility model, it has the following beneficial effects:

1. The anode terminal, cathode terminal and bipolar plate are all designed in a hexagonal structure, so that it has the largest reaction area in the circular structure, and is conducive to the uniform distribution of gas and liquid, while reducing high-pressure water electrolysis reduce the pressure drop of the device and enhance the stability of the structure.

2. The end corners of the hexagonal structure of the anode terminal, the cathode terminal and the bipolar plate are set as the rounded structure tangent to the inner wall of the sleeve, so that the anode terminal, the cathode terminal and the bipolar plate can be formed. The outer rounded corners of the sleeve are completely attached to the inner wall of the sleeve, which further enhances the stability of the overall structure.

3. The surface of the bipolar plate is provided with an oxide coating, a precious metal coating, a nitride layer, etc., so that the bipolar plate is not easily wetted by the electrolyte, and the loss of the electrolyte can also be avoided; and by coating the bipolar plate Thereby, the corrosion resistance of the bipolar plate is enhanced, and the service life of the high-pressure water electrolyzer can be improved.

Description of drawings

1 is an exploded view of the structure of a high-pressure water electrolyzer according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom...) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (As shown in the attached drawings), when the relative positional relationship, movement situation, etc. between the lower components, if the specific posture changes, the directional indication also changes accordingly.

In this application, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

In order to simplify the structure, this embodiment is provided with two membrane electrode assemblies. In other embodiments, multiple membrane electrode assemblies can be provided according to actual needs to increase the reaction area of the cathode and the anode, thereby ensuring the production of hydrogen and oxygen.

As shown in FIG. 1 , the present invention provides a high-pressure water electrolyzer, comprising a sleeve body 10 , an upper end cover 20 disposed at one end of the sleeve body 10 , and a first elastic sealing gasket 40 disposed inside the upper end cover 20 . , the anode terminal 60 arranged on the inner side of the first elastic gasket 40, the lower end cover 30 arranged on the other end of the casing 10, the second elastic gasket 50 arranged on the inner side of the lower end cover 30, The cathode connection terminal 70 inside the second elastic sealing gasket 50, and the plurality of membrane electrode assemblies 90 and the plurality of bipolar plates 100 disposed between the anode connection terminal 60 and the cathode connection terminal 70 are adjacent to each other. The bipolar plate 100 is arranged between the membrane electrode assemblies 90, and the anode terminal 60 and the cathode terminal 70 are arranged adjacent to the membrane electrode assembly;

Between the anode terminal 60 and the membrane electrode assembly 90 , between the cathode terminal 70 and the membrane electrode assembly 90 , and between the bipolar plate 100 and the membrane electrode assembly 90 , sealing ring 80;

The anode terminal 60, the cathode terminal 70 and the bipolar plate 100 are all regular hexagonal structures, the upper end cap 20, the lower end cap 30, the first elastic gasket 40, the second elastic gasket 50, the membrane electrode assembly 90 is a circular structure with the same size as the outer circle of the regular hexagonal structure; the diameter of the sealing ring 80 is equal to the diameter of the inner circle of the regular hexagonal structure.

As a preferred embodiment, the circular structure is provided with a plurality of screw holes 1000 corresponding to the circumferential direction, and the screw holes 1000 are arranged in the inscribed regular hexagon corresponding to the circular structure and the regular hexagonal structure outside.

As a preferred embodiment, the screw holes 1000 are provided with screws (not marked in the figure), the upper end cover 20 , the lower end cover 30 , the first elastic sealing gasket 40 , the second elastic sealing gasket 50 , and the membrane electrode assembly 90 is fixed by the screw connection, and this arrangement can enhance the stability of the structure. The screw holes 1000 are arranged on the outer side of the inscribed regular hexagon, so the screws do not contact the anode terminal 60 , the cathode terminal 70 and the bipolar plate 100 . The space between the anode connection terminal 60 and the membrane electrode assembly 90 and the space between the cathode connection terminal 70 and the membrane electrode assembly 90 are sealed by the sealing ring 80, so that an anode can be formed The sealed space for the water supply of the plate and the cathode plate can effectively prevent the leakage of water and gas.

The anode terminal 60, the cathode terminal 70 and the bipolar plate 100 are arranged in a regular hexagonal structure, so that it has the largest reaction area in the circular structure, is conducive to the uniform distribution of gas and liquid, and reduces high voltage at the same time. The pressure drop of the water electrolyzer enhances the stability of the structure.

As a preferred embodiment, the end corners of the regular hexagonal structure are rounded structures arranged to be tangent to the inner wall of the sleeve body 10, which further enhances the stability of the overall structure.

As a preferred embodiment, the surface of the bipolar plate 100 is provided with an oxide coating, a noble metal coating or a nitride layer, etc., to enhance the corrosion resistance of the bipolar plate.

In this embodiment, the upper end cap 20 , the lower end cap 30 , the first elastic gasket 40 , the second elastic gasket 50 , the anode terminal 60 , the cathode terminal 70 , the membrane electrode assembly 90 , and the bipolar plate 100 There are correspondingly provided first through holes 1 and second through holes 2 for water inlet, third through holes 3 for water outlet and output generated oxygen, and fourth through holes for water outlet and output generated hydrogen. Via 4.

As a preferred embodiment, the anode terminal 60 is provided with an anode terminal 61 at the geometric center of one side surface close to the upper end cover 20 ; the geometric centers of the upper end cover 20 and the first elastic gasket 40 are both A fifth through hole 5 matching the anode terminal 61 is provided, and the anode terminal 61 passes through the fifth through hole 5 and is connected to an external power line (not shown in the figure).

As a preferred embodiment, the cathode connecting terminal 70 is provided with a cathode connecting post 71 at the geometric center of one side surface of the lower end cover 30 ; the geometric centers of the lower end cover 30 and the second elastic gasket 50 are both A sixth through hole 6 matching the cathode terminal 71 is provided, and the cathode terminal 71 passes through the sixth through hole 6 and is connected to an external power line (not shown in the figure).

Specifically, the membrane electrode assembly 90 includes a diaphragm 91 , an anode plate 92 disposed on the side of the diaphragm 91 close to the anode terminal 20 , and a cathode disposed on the side of the diaphragm 91 close to the cathode terminal 30 plate 93.

As a preferred embodiment, the sealed area formed between the anode connection terminal 60 and the diaphragm 91 closest to the anode connection terminal 60 , and the bipolar plate 100 and the closest area to the bipolar plate 100 The airtight areas formed between the diaphragms 91 are anode chambers (not marked in the figure), and an anode plate 92 is arranged between the bipolar plate 100 forming the anode chamber and the diaphragm 91; A first conduit 210 is provided in the second through hole 2 and the fourth through hole 4 of the anode chamber 200 . The first conduit 210 is used to isolate the water flow and the generated oxygen in the anode chamber 200 from the second through hole 2 and the fourth through hole 4 .

As a preferred embodiment, the airtight area formed between the cathode connection terminal 70 and the diaphragm 91 closest to the cathode connection terminal 70 , and the bipolar plate 100 and the closest area to the bipolar plate 100 The airtight sections formed between the diaphragms 91 are all cathode chambers (not marked in the figure), and a cathode plate 93 is arranged between the bipolar plate 100 and the diaphragm 91 forming the cathode chamber; A second conduit 310 is provided in the first through hole 1 and the third through hole 3 of the cathode chamber 300 . The second conduit 310 is used to isolate the water flow in the cathode chamber 300 and the generated hydrogen gas from the first through hole 1 and the third through hole 3 .

As a preferred embodiment, the outer sides of the first conduit 210 and the second conduit 310 are provided with elastic sealing rings (not marked in the figure) that are sealed and wrapped, and the elastic sealing rings make the first conduit 210 and the The second through hole 2 and the fourth through hole 4 located in the anode chamber 200 are in sealing cooperation, and the second conduit 310 and the first through hole 1 and the fourth through hole located in the cathode chamber 300 The third through holes 3 are sealed and matched. In this way, the first conduit 210 and the second through hole 2 and the fourth through hole 4 and the second conduit 310 and the first through hole 1 and the third through hole 3 are completely sealed to prevent hydrogen and oxygen in the water. Mix together.

As a preferred embodiment, an insulating sheath (not marked in the figure) is wrapped on the outer side of the anode terminal 61 and the cathode terminal 71 . Electric leakage between the anode terminal 61 and the upper end cap 20 and the cathode terminal 71 and the lower end cap 30 is prevented.

Further, the first elastic sealing gasket 40 and the second elastic sealing gasket 50 are both insulating rubber material sealing gaskets, which not only isolates the current, but also provides expansion space for the electrolyzer under pressure.

It should be noted that the bipolar plate 100 in this embodiment can be a graphite bipolar plate or a metal bipolar plate, wherein the metal bipolar plate can be a nickel-based material, a titanium-based material, a stainless steel material, etc.; a sealing ring, a gasket The iso-insulating sealing structure is one or more combinations of polymer materials, silicone materials, and rubber materials.

In this embodiment, each structure needs to be kept flat during the manufacturing process, so as to improve its corrosion resistance and gas-liquid flow uniformity.

The water flow flows in from the first through hole 1 of the upper end cover 20, and flows through the anode chamber 200 for electrolysis to generate oxygen, and the generated oxygen flows out from the third through hole 3 of the lower end cover 30 together with the water flow; The hole 2 flows in, flows through the cathode chamber 300 electrolysis to generate hydrogen, and the generated hydrogen flows out from the fourth through hole 4 of the lower end cover 30 together with the water flow; the third through hole 3 and the fourth through hole 4 are respectively connected to the gas-liquid separator ( In the figure, the symbol is connected, and pure hydrogen and pure oxygen are obtained after being separated by a gas-liquid separator.

The above are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Under the concept of the utility model of the present utility model, the equivalent structure transformations made by using the contents of the present utility model description and accompanying drawings, Or directly/indirectly applied in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A high pressure water electrolyzer characterized by: the bipolar plate comprises a sleeve body, an upper end cover arranged at one end of the sleeve body, a first elastic sealing gasket arranged at the inner side of the upper end cover, an anode connecting terminal arranged at the inner side of the first elastic sealing gasket, a lower end cover arranged at the other end of the sleeve body, a second elastic sealing gasket arranged at the inner side of the lower end cover, a cathode connecting terminal arranged at the inner side of the second elastic sealing gasket, a plurality of membrane electrode assemblies and a plurality of bipolar plates arranged between the anode connecting terminal and the cathode connecting terminal, wherein the bipolar plates are arranged between the adjacent membrane electrode assemblies; the anode connecting terminal and the cathode connecting terminal are both arranged adjacent to the membrane electrode assembly;

sealing rings are arranged between the anode connecting terminal and the membrane electrode assembly, between the cathode connecting terminal and the membrane electrode assembly and between the bipolar plate and the membrane electrode assembly;

the anode connecting terminal, the cathode connecting terminal and the bipolar plate are all in a regular hexagon structure, and the upper end cover, the lower end cover, the first elastic sealing gasket, the second elastic sealing gasket and the membrane electrode assembly are in a circular structure with the same size as the excircle of the regular hexagon structure; the diameter of the sealing ring is equal to the diameter of the inner circle of the regular hexagon structure.

2. The high pressure water electrolyzer of claim 1 characterized in that: a plurality of screw holes are arranged on the circular structure in a corresponding circumferential direction, and the screw holes are arranged on the outer sides of the circular structure and the inscribed regular hexagon corresponding to the regular hexagon; the membrane electrode assembly is characterized in that screws are arranged on the screw holes, and the upper end cover, the lower end cover, the first elastic sealing gasket, the second elastic sealing gasket and the membrane electrode assembly are fixedly connected through the screws.

3. The high pressure water electrolyzer of claim 2 characterized in that: the end angle of the regular hexagon structure is a circular angle structure tangent to the inner wall of the sleeve body.

4. The high pressure water electrolyzer of claim 1 characterized in that: the surface of the bipolar plate is provided with an oxide coating, a noble metal coating or a nitride layer.

5. The high pressure water electrolyzer of claim 1 characterized in that: the upper end cover, the lower end cover, the first elastic sealing gasket, the second elastic sealing gasket, the anode wiring terminal, the cathode wiring terminal, the membrane electrode assembly and the bipolar plate are respectively and correspondingly provided with a first through hole, a second through hole, a third through hole and a fourth through hole.

6. The high pressure water electrolyzer of claim 5 characterized in that: an anode binding post is arranged at the geometric center of one side surface of the anode binding post close to the upper end cover; the geometric centers of the upper end cover and the first elastic sealing gasket are provided with fifth through holes matched with the anode wiring terminal, and the anode wiring terminal penetrates through the fifth through holes to be connected with an external power line; the cathode wiring terminal is provided with a cathode wiring terminal at the geometric center of one side surface close to the lower end cover; the geometric centers of the lower end cover and the second elastic sealing gasket are provided with sixth through holes matched with the cathode wiring terminal, and the cathode wiring terminal penetrates through the sixth through holes to be connected with an external power line; and insulating sheaths are arranged on the outer sides of the anode binding post and the cathode binding post.

7. The high pressure water electrolyzer of claim 6 characterized in that: the membrane electrode assembly comprises a diaphragm, an anode plate and a cathode plate, wherein the anode plate is arranged on one side, close to the anode wiring terminal, of the diaphragm, and the cathode plate is arranged on one side, close to the cathode wiring terminal, of the diaphragm.

8. The high pressure water electrolyzer of claim 7 characterized in that: a sealed interval formed between the anode terminal and the diaphragm nearest to the anode terminal and a sealed interval formed between the bipolar plate and the diaphragm nearest to the bipolar plate are both anode chambers, and an anode plate is arranged between the bipolar plate forming the anode chamber and the diaphragm; and first guide pipes are arranged in the second through hole and the fourth through hole of the anode chamber.

9. The high pressure water electrolyzer of claim 8 characterized in that: a sealed interval formed between the cathode terminal and the membrane nearest to the cathode terminal and a sealed interval formed between the bipolar plate and the membrane nearest to the bipolar plate are cathode chambers, and a cathode plate is arranged between the bipolar plate forming the cathode chambers and the membrane; second guide pipes are arranged in the first through hole and the third through hole of the cathode chamber; and elastic sealing rings are arranged on the outer sides of the first guide pipe and the second guide pipe.

10. The high pressure water electrolyzer of claim 1 characterized in that: the first elastic sealing gasket and the second elastic sealing gasket are both insulating rubber sealing gaskets.

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