Annular installation structure of gas generating device and using method

Abstract

The invention discloses an annular mounting structure of a gas generating device and a using method, solves the problems that a large or ultra-large polar frame is extremely easy to deform and is not suitable for centering, and solves the problems of liquid leakage and liquid spraying while realizing a thrust effect. According to the technical scheme, the device comprises a left-end pressing plate, a right-end pressing plate, a hollow circular ring pole frame, a circular main pole plate and a clamping fastener assembly, a plurality of pole plate frames are arranged between the left end pressing plate and the right end pressing plate, the left end pressing plate, the right end pressing plate and each hollow circular ring pole frame are provided with connecting holes with the same number, and the clamping fastener assemblies are installed in the connecting holes. The clamping fastener assembly sequentially penetrates through the connecting holes in the left-end pressing plate, the polar plate frame and the right-end pressing plate for fastening connection; the circular main polar plate is mounted at the hollow position of the hollow circular ring polar frame; the plurality of hollow circular pole changing frames, the left-end pressing plate and the right-end pressing plate form an electrolytic cell, and an electrolytic chamber is formed between the adjacent circular pole plates.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolysis equipment, and in particular relates to a ring-mounted structure of a gas generating device and a use method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the outer ring of the bipolar plate of the traditional electrolytic cell is a pole frame with dense water lines. This structure has good safety performance when used in electrolytic cells with small diameters and small numbers of small chambers. However, with the large diameter single cell with large numbers of small chambers, the processing error caused by machining is also large due to the large volume, resulting in a decrease in the sealing performance of the electrolytic cell, an increase in safety hazards, and an increase in the difficulty of centering in the assembly type. It is inconvenient to install and it is easy to be installed in a wavy shape. Moreover, due to the large number of bipolar plates, the middle part of the electrolytic cell is prone to sink over time, causing the adjacent bipolar plates to slide accordingly, distorting the gaskets therebetween, destroying the original sealing structure, and causing electrolyte leakage and spraying. Therefore, the structure of large or super-large pole frames has obvious problems such as difficulty in centering and poor structural anti-twisting performance. Summary of the invention

[0004] In view of the above problems, the present invention provides a ring-mounted structure and a method of use of a gas generating device. The design of the mother-and-child joints solves the problems of difficult processing, easy deformation, and poor alignment of large or extra-large pole frames. The insulating gasket and the sealing water pattern in the mother-and-child joints are combined to achieve a thrust-stopping effect while solving the problems of liquid leakage and liquid spraying.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, the present invention provides a ring-mounted structure of a gas generating device, comprising a left-end pressure plate, a right-end pressure plate, a plate pole frame and a clamping fastener assembly; a plurality of plate pole frames are arranged between the left-end pressure plate and the right-end pressure plate, the left-end pressure plate, the right-end pressure plate and each plate pole frame are provided with the same number of connecting holes, the clamping fastener assembly is installed in the connecting hole, and the clamping fastener assembly passes through the connecting holes on the left-end pressure plate, the plate pole frame and the right-end pressure plate in sequence for fastening connection; the plate pole frame is composed of a hollow circular ring pole frame and a circular main pole plate, and the circular main pole plate is installed in the hollow position of the hollow circular ring pole frame; a plurality of the hollow circular pole exchange frames and the left-end pressure plate and the right-end pressure plate form an electrolytic cell, and an electrolytic chamber is formed between adjacent circular plates;

[0007] A circular mother-and-child port structure is provided on the hollow annular pole frame, and the positions of the mother-and-child port structures on each of the hollow annular pole frames are the same. A child port is provided on one side of the hollow annular pole frame, and a mother port is provided on the other side. A pole frame insulator is provided in the mother port. Sealing water patterns and insulating gaskets are provided on the side walls of the hollow annular pole frame between the mother port and the circular main pole plate. Sealing water patterns are provided on the side walls of the hollow annular pole frame between the child port and the circular main pole plate, and the insulating gaskets can form a certain gap between adjacent hollow annular pole-changing frames.

[0008] Furthermore, the hollow annular pole frame is also provided with a current connection board, an electrolyte inlet and outlet hole, and an air outlet hole; the current connection board is used to connect a power source to power the electrolytic cell, the electrolyte inlet and outlet hole is used to fill and discharge the electrolyte, and the air outlet hole is used to discharge the gas generated during the electrolysis process.

[0009] Furthermore, the hollow annular pole frame is a hollow annular steel plate of low-carbon steel, and the circular main pole plate is a circular low-carbon steel thin plate; the hollow annular pole frame and the circular main pole plate are provided with a nickel plating layer.

[0010] Furthermore, a sub-mouth is provided on one side of the left end pressure plate close to the hollow annular pole frame; a female mouth is provided on one side of the right end pressure plate close to the hollow annular pole frame, the thickness of the hollow annular pole frame is greater than the height of the protrusion of the sub-mouth, the depth of the female mouth is not higher than the height of the protrusion of the sub-mouth, and the pole frame insulator is also provided in the female mouth on the right end pressure plate.

[0011] Furthermore, the pole frame insulator is tightly fitted to the hollow annular pole frame.

[0012] Furthermore, the sealing water pattern is a corrugated structure arranged on the side wall of the hollow circular ring pole frame.

[0013] Furthermore, the clamping fastener assembly consists of a threaded rod, a first nut and a second nut, the threaded rod is a high-strength double-ended screw, the first nut is arranged at one end of the threaded rod, and the second nut is arranged at the other end of the threaded rod.

[0014] Furthermore, a left end pressure plate, a pole plate frame and a right end pressure plate are sequentially mounted on the threaded rod, the first nut is arranged on the left side of the left end pressure plate, and the second nut is arranged on the right side of the right end pressure plate.

[0015] Furthermore, a tensioning elastic body component is arranged between the first nut and the left end pressure plate, and a tensioning elastic body component is also arranged between the second nut and the right end pressure plate; the tensioning elastic body component is a disc spring, and the disc spring is made of spring steel material.

[0016] In a second aspect, the present invention further provides a method for using the ring-mounted structure of a gas generating device, comprising: passing the threaded rod of the clamping fastener assembly through the corresponding connecting holes of the left-end pressure plate, a plurality of pole plates and pole frames, and the right-end pressure plate in sequence, and preliminarily connecting the components by arranging a first nut and a second nut; installing a tensioning elastic body assembly between the first nut and the left-end pressure plate and between the second nut and the right-end pressure plate, and tightening the first nut and the second nut;

[0017] Electrolyte is added into an electrolytic cell formed by a plurality of hollow annular pole frames and a left-end pressing plate and a right-end pressing plate through the electrolyte inlet and outlet holes provided on the hollow annular pole frames; a power source is connected through the current terminal board on the hollow annular pole frames to supply power to the electrolytic cell; under the condition that the power source is turned on and the electrolyte exists, an electrolytic reaction begins in the electrolytic chamber formed between adjacent circular pole plates, and the gas generated during the electrolysis process can be discharged through the gas outlet holes on the hollow annular pole frames.

[0018] Compared with the prior art, the present invention has the following advantages and positive effects:

[0019] The present invention combines a left-end pressing plate, a right-end pressing plate and a plurality of pole plates and pole frames, and uses a clamping fastener assembly to connect to form a stable electrolytic cell structure. The hollow annular pole frame of the pole plate and the circular main pole plate are fully welded and nickel-plated, which not only ensures the internal space separation and electron transfer, but also improves the corrosion resistance and prolongs the service life. The mother-and-child port structure of the hollow annular pole frame cooperates with the sealing water pattern, the insulating gasket and the pole frame insulator to effectively avoid the short circuit caused by the contact of adjacent pole frame conductors, and at the same time prevents the leakage of electrolyte, ensuring the safe and stable electrolysis process. The existence of the mother-and-child port also plays a role in the traditional pole The role of the positioning holes processed separately in the frame is to facilitate the centering assembly of adjacent pole frames and reduce the maximum deformation; the insertion of the convex and concave female and male ports can realize the positioning, gap adjustment and thrust stop between adjacent hollow annular pole frames, thereby avoiding the leakage of gas and electrolyte caused by the slippage and sinking deformation of adjacent pole frames and the twisting deformation of the sealing gasket due to the changes in pressure and temperature during the electrolysis process of the electrolytic cell; the inner side surface of the sub-port can form a thrust stop effect on the insulating gasket, preventing the insulating gasket from expanding and collapsing outward along the gap formed by the adjacent plate pole frames, causing the insulating gasket to be too thin and fail.

[0020] The present invention cooperates with a double-headed screw rod and a nut in a clamping fastener assembly, and a tensioning elastic body assembly composed of disc springs is arranged at both ends. While connecting various components, it can compensate for the change of preload force caused by thermal expansion and contraction, prevent bolt fatigue and gasket failure, and keep the electrolytic cell in a compressed state at all times during operation, maintain close connection between various components, and ensure that the electrolysis process is continuous and stable and is not affected by temperature and pressure changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 It is an axial cross-sectional view of the ring-mounted structure of the gas generating device of the present invention;

[0023] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 This is a diagram of the structure of the pole plate and pole frame of the present invention;

[0025] Figure 4 It is an axial cross-sectional view of the pole plate and pole frame of the present invention;

[0026] Figure 5 For the present invention Figure 4 A partial enlarged view of point B in the middle.

[0027] In the figure: 1. left end pressure plate; 2. right end pressure plate; 3. hollow annular pole frame; 4. first nut; 5. tensioning elastomer guide ring; 6. tensioning elastomer fixing ring; 7. insulating gasket; 8. pole frame insulator; 9. threaded rod; 10. tensioning elastomer assembly; 11. second nut; 12. circular main pole plate; 13. connecting hole; 14. female port; 15. female port; 16. sealing water pattern. DETAILED DESCRIPTION

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0030] This embodiment discloses a ring-mounted structure of a gas generating device, such as Figure 1-Figure 5As shown, it includes a left-end pressing plate 1, a right-end pressing plate 2, a plate pole frame and a clamping fastener assembly; a plurality of plate pole frames are arranged between the left-end pressing plate 1 and the right-end pressing plate 2, and the left-end pressing plate 1, the right-end pressing plate 2 and each plate pole frame are provided with the same number of connecting holes 13, and the clamping fastener assembly is installed in the connecting hole 13, and the clamping fastener assembly passes through the connecting holes 13 on the left-end pressing plate 1, the plate pole frame and the right-end pressing plate 2 in sequence for fastening connection; the plate pole frame is composed of a hollow circular pole frame 3 and a circular main pole plate 12, and the circular main pole plate 12 is installed in the hollow position of the hollow circular pole frame 3; a plurality of the hollow circular pole exchange frames and the left-end pressing plate 1 and the right-end pressing plate 2 form an electrolytic cell, and an electrolytic chamber is formed between adjacent circular plates;

[0031] The hollow annular pole frame 3 is provided with an annular mother-and-child opening 14 structure, and the positions of the mother-and-child opening 14 structures on each hollow annular pole frame 3 are the same. A son-and-child opening 15 is provided on one side of the hollow annular pole frame 3, and a mother-and-child opening 14 is provided on the other side. The thickness of the hollow annular pole frame 3 is greater than the height of the protrusion of the son-and-child opening 15, and the depth of the mother-and-child opening 14 is not higher than the height of the protrusion of the son-and-child opening 15; a pole frame insulator 8 is provided in the mother-and-child opening 14, and a sealing water pattern 16 and an insulating gasket 7 are provided on the side wall of the hollow annular pole frame 3 between the mother-and-child opening 14 and the circular main pole plate 12. A sealing water pattern 16 is provided on the side wall of the hollow annular pole frame 3 between the son-and-child opening 15 and the circular main pole plate 12, and the insulating gasket 7 can form a certain gap between adjacent hollow annular pole-changing frames.

[0032] The hollow annular pole frame 3 is also provided with a current connection board, an electrolyte inlet and outlet hole, and an air outlet hole; the current connection board is used to connect a power source to power the electrolytic cell, the electrolyte inlet and outlet hole is used to fill and discharge the electrolyte, and the air outlet hole is used to discharge the gas generated during the electrolysis process.

[0033] The hollow annular pole frame 3 is a hollow annular steel plate of low carbon steel, and the circular main pole plate 12 is a circular low carbon steel thin plate; the hollow annular pole frame 3 and the circular main pole plate 12 are provided with a nickel plating layer, and the role of the nickel plating is to prevent corrosion in alkaline electrolyte. The hollow annular pole frame 3 and the circular main pole plate 12 are formed into a sealed integral structure by a full welding process. The basic role of welding the hollow annular pole frame 3 and the circular main pole plate 12 is to separate the internal space of the alkaline electrolytic cell, form multiple electrolytic chambers and transfer electrons, and ensure the smooth progress of the electrolysis process.

[0034] A sub-port 15 is provided on one side of the left end pressing plate 1 close to the hollow annular pole frame 3, which is used for plugging with a female port 14 on the adjacent hollow annular pole frame 3; a female port 14 is provided on one side of the right end pressing plate 2 close to the hollow annular pole frame 3, which is used for plugging with the sub-port 15 on the adjacent hollow annular pole frame 3, and the female port 14 on the right end pressing plate 2 is also provided with the pole frame insulator 8;

[0035] The cross-sectional shape of the pole frame insulator 8 is U-shaped or Z-shaped as a whole. The pole frame insulator 8 fits tightly with the hollow annular pole frame 3. The pole frame insulator 8 is a good insulator, resistant to voltage breakdown, alkali corrosion, pressure and high temperature. Its function is to avoid direct contact between adjacent pole frame conductors, resulting in short circuit in the small chamber and failure of the electrolysis process.

[0036] A sealing water pattern 16 and an insulating gasket 7 are arranged on the side wall of the hollow annular pole frame 3 between the mother port 14 and the circular main pole plate 12, and a sealing water pattern 16 is arranged on the side wall of the hollow annular pole frame 3 between the sub-port 15 and the circular main pole plate 12. The sealing water pattern 16 is a corrugated structure arranged on the side wall of the hollow annular pole frame 3, and the side of the sub-port 15 close to the sealing water pattern 16 is the inner side of the sub-port, and the inner side of the sub-port can form a thrust effect on the insulating gasket 7, so as to prevent the insulating gasket 7 from expanding and collapsing outward along the gap formed by the adjacent pole plate pole frame, causing the insulating gasket The sealing water pattern 16 and the insulating gasket 7 are installed between two adjacent hollow annular pole frames 3; the insulating gasket 7 is made of polytetrafluoroethylene, and the mother-and-child port 14 structure is provided on the left end pressure plate 1, the right end pressure plate 2 and the hollow annular pole frame 3, so that the sealing and insulating gasket 7 play a sealing and insulating role, and no longer play a role in resisting the shear force of the sinking of the tank, which can avoid the sealing failure and the short circuit of the adjacent chambers caused by the tearing and twisting deformation of the insulating gasket 7 due to the slipping and sinking of the pole frame, which is different from the present invention, and seriously threatens the overall sealing and safety of the electrolytic cell.

[0037] The clamping fastener assembly consists of a threaded rod 9, a first nut 4 and a second nut 11. The threaded rod 9 is a high-strength double-headed screw. The first nut 4 is arranged at one end of the threaded rod 9, and the second nut 11 is arranged at the other end of the threaded rod 9. The threaded rod 9 is sequentially mounted with a left-end pressure plate 1, a plate frame and a right-end pressure plate 2. The first nut 4 is arranged on the left side of the left-end pressure plate 1, and the second nut 11 is arranged on the right side of the right-end pressure plate 2. Its function is to connect the left-end pressure plate 1, the plate frame and the right-end pressure plate 2 into a whole to form an electrolytic cell.

[0038] A tensioning elastic body component 10 is provided between the first nut 4 and the left end pressure plate 1, and a tensioning elastic body component 10 is also provided between the second nut 11 and the right end pressure plate 2; the tensioning elastic body component 10 is a disc spring, which is made of spring steel material and can increase the contact area between the bolt or nut and the surface of the part to prevent the surface of the part from being worn. At the same time, it also plays the role of protecting and locking parts and compensating for the repeated changes of the preload force caused by factors such as thermal expansion and contraction, so that the preload force remains stable and unchanged, and prevents bolt fatigue and gasket failure. During the operation of the electrolytic cell, the size of the electrolytic cell body changes due to thermal expansion and contraction due to pressure and temperature. Relying on the force of the tensioning elastic body component 10, the cell body can always remain in a compressed state.

[0039] A tensioning elastomer guide ring 5 is arranged between the first nut 4 and the tensioning elastomer assembly 10, and a tensioning elastomer guide ring 5 is arranged between the second nut 11 and the tensioning elastomer assembly 10, to provide surface contact force for the tensioning elastomer and prevent damage to the thread of the fastener; a tensioning elastomer fixing ring 6 is arranged between the left end pressure plate 1 and the tensioning elastomer assembly 10, and a tensioning elastomer fixing ring 6 is arranged between the right end pressure plate 2 and the tensioning elastomer assembly 10, to fix the tensioning elastomer and transmit the tightening force to the left end pressure plate and the right end pressure plate.

[0040] Directions:

[0041] Prepare the left-end pressure plate 1, the right-end pressure plate 2, the pole plate pole frame, the clamping fastener assembly and the tensioning elastic body assembly 10; pass the threaded rod 9 of the clamping fastener assembly through the corresponding connecting holes 13 of the left-end pressure plate 1, several pole plate pole frames and the right-end pressure plate 2 in turn, and use the first nut 4 and the second nut 11 to arrange and preliminarily connect the components; install the tensioning elastic body assembly 10 between the first nut 4 and the left-end pressure plate 1 and between the second nut 11 and the right-end pressure plate 2, and tighten the first nut 4 and the second nut 11.

[0042] Electrolyte is added into the electrolytic cell formed by a plurality of hollow annular pole frames 3 and the left-end pressing plate 1 and the right-end pressing plate 2 through the electrolyte inlet and outlet holes provided on the hollow annular pole frame 3; a power source is connected through the current terminal block on the hollow annular pole frame 3 to supply power to the electrolytic cell so that the electrolysis reaction can be started; under the condition that the power source is turned on and the electrolyte exists, the electrolysis reaction begins in the electrolysis chamber formed between the adjacent circular pole plates, and the gas generated during the electrolysis process can be discharged through the gas outlet holes on the hollow annular pole frame 3; when the electrolytic cell expands and contracts due to pressure and temperature changes during operation, resulting in a change in the size of the electrolytic cell body, the cell body is always kept in a compressed state by relying on the force of the tensioning elastic body assembly 10, and the components are kept tightly connected to ensure that the electrolysis process is stable and continuous, and to avoid the occurrence of adverse conditions such as sealing failure and short circuit due to size changes.

[0043] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A ring-mounted structure of a gas generating device, characterized in that: It includes a left-end pressing plate, a right-end pressing plate, a plate pole frame and a clamping fastener assembly; a plurality of plate pole frames are arranged between the left-end pressing plate and the right-end pressing plate, the left-end pressing plate, the right-end pressing plate and each plate pole frame are provided with the same number of connecting holes, the clamping fastener assembly is installed in the connecting hole, and the clamping fastener assembly passes through the connecting holes on the left-end pressing plate, the plate pole frame and the right-end pressing plate in sequence for fastening connection; the plate pole frame is composed of a hollow annular pole frame and a circular main pole plate, and the circular main pole plate is installed in the hollow position of the hollow annular pole frame; a plurality of the hollow circular pole exchange frames and the left-end pressing plate and the right-end pressing plate form an electrolytic cell, and an electrolytic chamber is formed between adjacent circular pole plates; A circular mother-and-child port structure is provided on the hollow annular pole frame, and the positions of the mother-and-child port structures on each of the hollow annular pole frames are the same. A child port is provided on one side of the hollow annular pole frame, and a mother port is provided on the other side. A pole frame insulator is provided in the mother port. Sealing water patterns and insulating gaskets are provided on the side walls of the hollow annular pole frame between the mother port and the circular main pole plate. Sealing water patterns are provided on the side walls of the hollow annular pole frame between the child port and the circular main pole plate, and the insulating gaskets can form a certain gap between adjacent hollow annular pole-changing frames.

2. The ring-mounted structure of a gas generating device according to claim 1, characterized in that: The hollow annular pole frame is also provided with a current connection board, an electrolyte inlet and outlet hole, and an air outlet hole; the current connection board is used to connect a power source to power the electrolytic cell, the electrolyte inlet and outlet hole is used to fill and discharge the electrolyte, and the air outlet hole is used to discharge the gas generated during the electrolysis process.

3. The ring-mounted structure of a gas generating device according to claim 1, characterized in that: The hollow annular pole frame is a hollow annular steel plate of low-carbon steel, and the circular main pole plate is a circular low-carbon steel thin plate; the hollow annular pole frame and the circular main pole plate are provided with a nickel plating layer.

4. The ring-mounted structure of a gas generating device according to claim 1, characterized in that: A sub-mouth is provided on one side of the left end pressure plate close to the hollow annular pole frame; a female mouth is provided on one side of the right end pressure plate close to the hollow annular pole frame, the thickness of the hollow annular pole frame is greater than the height of the protrusion of the sub-mouth, the depth of the female mouth is not higher than the height of the protrusion of the sub-mouth, and the pole frame insulator is also provided in the female mouth on the right end pressure plate.

5. The ring-mounted structure of a gas generating device according to claim 4, characterized in that: The pole frame insulator is tightly fitted with the hollow annular pole frame.

6. The ring-mounted structure of a gas generating device according to claim 1, characterized in that: The sealing water pattern is a corrugated structure arranged on the side wall of the hollow circular ring pole frame.

7. The ring-mounted structure of a gas generating device according to claim 1, characterized in that: The clamping fastener assembly consists of a threaded rod, a first nut and a second nut. The threaded rod is a high-strength double-ended screw rod. The first nut is arranged at one end of the threaded rod, and the second nut is arranged at the other end of the threaded rod.

8. The ring-mounted structure of a gas generating device according to claim 7, characterized in that: The threaded rod is sequentially mounted with a left end pressure plate, a pole plate frame and a right end pressure plate, the first nut is arranged on the left side of the left end pressure plate, and the second nut is arranged on the right side of the right end pressure plate.

9. The ring-mounted structure of a gas generating device according to claim 8, characterized in that: A tensioning elastic body component is arranged between the first nut and the left end pressure plate, and a tensioning elastic body component is also arranged between the second nut and the right end pressure plate; the tensioning elastic body component is a disc spring, and the disc spring is made of spring steel material.

10. A ring-mounted structure and a method of using a gas generating device according to any one of claims 2 to 9, characterized in that: include: The threaded rod of the clamping fastener assembly is passed through the corresponding connecting holes of the left end pressing plate, the plurality of pole plates and pole frames, and the right end pressing plate in sequence, and the components are preliminarily connected by using the first nut and the second nut arrangement; Install a tensioning elastic body assembly between the first nut and the left end pressure plate and between the second nut and the right end pressure plate, and tighten the first nut and the second nut; Electrolyte is added into an electrolytic cell formed by a plurality of hollow annular pole frames and a left-end pressing plate and a right-end pressing plate through the electrolyte inlet and outlet holes provided on the hollow annular pole frames; a power source is connected through the current terminal board on the hollow annular pole frames to supply power to the electrolytic cell; under the condition that the power source is turned on and the electrolyte exists, an electrolytic reaction begins in the electrolytic chamber formed between adjacent circular pole plates, and the gas generated during the electrolysis process can be discharged through the gas outlet holes on the hollow annular pole frames.

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