CN218842353U

CN218842353U - Electrolytic cell

Info

Publication number: CN218842353U
Application number: CN202222689985.6U
Authority: CN
Inventors: 朱琛; 计策
Original assignee: Wuxi Longji Hydrogen Energy Technology Co ltd
Current assignee: Wuxi Longji Hydrogen Energy Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-11
Anticipated expiration: 2032-10-12

Abstract

The utility model relates to an electrolytic cell, including a plurality of utmost point frames, gasket and sleeve pipe, adjacent two be provided with one between the utmost point frame gasket and one the sleeve pipe, every the both sides that the utmost point frame is relative are provided with the mounting hole respectively, the gasket is provided with the through-hole, the through-hole with the mounting hole communicates with each other, adjacent two be formed with installation space between the mounting hole, the sleeve pipe is worn to establish in the through-hole and install in the installation space. Through above-mentioned technical scheme, this electrolysis trough that openly provides can prevent that the gasket creep from extruding and blockking up the runner hole.

Description

Electrolytic cell

Technical Field

The disclosure relates to the technical field of hydrogen production by electrolysis, in particular to an electrolytic cell.

Background

With the development of hydrogen energy in recent years, a more convenient method for producing hydrogen by water electrolysis gradually becomes a main market demand body. In an electrolytic hydrogen production equipment system, an electrolytic tank is a main equipment, generally consists of a tank body, pole frames and gaskets, wherein the gaskets are generally arranged among the pole frames which are arranged in an overlapped mode and play a role in insulation and sealing, a pole plate is arranged in the middle of each single pole frame and divides the pole frames into a cathode isolation area and an anode isolation area, when direct current passes through the electrolytic tank, oxidation reaction occurs at the interface of the anode and a solution, and reduction reaction occurs at the interface of the cathode and the solution, so that a required product is prepared. In traditional electrolysis trough, a plurality of utmost point frames outermost both sides of overlapping arranging are provided with the end clamp plate, and the end clamp plate outside compresses tightly through the dish spring for pass through the squeezing action with a plurality of utmost point frames and gasket and fix together.

In practical application, the gasket can receive the squeezing action that comes from end clamp plate and spring, there is the condition that the creep extruded in radial (gasket place plane direction), the gasket is extruded to utmost point frame along the department outward, the department overflows to the cell along the department in the gasket, the runner department overflows to the hole center in, not only reduced runner sectional area size, and the axial runner causes the fluid flow in the runner inhomogeneous easily at gasket department reducing, in addition, the easy vortex that takes place in creep extrusion gasket both sides, take place corrosion easily.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide an electrolytic cell capable of preventing a gasket from being extruded by creep to block a flow path hole.

In order to achieve the above object, the present disclosure provides an electrolytic cell, including a plurality of pole frames, a gasket and a sleeve, wherein one gasket and one sleeve are disposed between two adjacent pole frames, two opposite sides of each pole frame are respectively provided with a mounting hole, the gasket is provided with a through hole, the through hole is communicated with the mounting hole, a mounting space is formed between two adjacent mounting holes, and the sleeve is inserted into the through hole and mounted in the mounting space.

Optionally, the pole frame is provided with a flow passage hole, the flow passage hole is located between the two mounting holes, and between the flow passage hole and the two mounting holes, and step surfaces are respectively formed between the flow passage hole and the mounting holes, one end of the same sleeve is stopped at the step surface of one of the two adjacent pole frames, and the other end of the same sleeve is stopped at the step surface of the other of the two adjacent pole frames.

Optionally, the length of the sleeve is greater than the initial thickness of the gasket, and the length of the sleeve is less than or equal to the sum of the depth of the recess of the two mounting holes and the compressed thickness of the gasket.

Optionally, the length of the sleeve is 0 to 0.2mm smaller than the sum of the depth of the recess of the two mounting holes and the compressed thickness of the gasket.

Optionally, the pole frame is provided with a first small chamber, a second small chamber and a radial flow passage, the first small chamber and the second small chamber are isolated from each other, the radial flow passage extends towards the inside of the pole frame along the radial direction of the pole frame, and the flow passage hole is communicated with the first small chamber or the second small chamber through the radial flow passage.

Optionally, the sleeve is inserted into the mounting hole and is in clearance fit with the mounting hole, after the sleeve is inserted, the inner edge of the sleeve is flush with the edge of the flow passage hole, and an opening is formed in the sleeve and communicated with the radial flow passage.

Optionally, the opening penetrates through the sleeve, or the opening extends in the axial direction of the polar frame, and the length of the opening in the axial direction of the polar frame is smaller than that of the sleeve in the axial direction of the polar frame.

Optionally, the length of the opening extending along the circumferential direction of the pole frame is greater than or equal to the length of the radial flow channel extending along the circumferential direction of the pole frame.

Optionally, the first mounting hole is configured as a round hole or a kidney-shaped hole or a square hole.

Optionally, the number of the flow passage holes and the number of the mounting holes are multiple, the flow passage holes and the mounting holes are arranged at intervals along the circumferential direction of the pole frame, and the flow passage holes and the mounting holes are located on the same circumference of the pole frame.

Through the technical scheme, in the electrolysis trough that this disclosure provided, the mounting hole has been seted up and through runner hole intercommunication respectively to utmost point frame both sides correspondence, the gasket is seted up the through-hole and can is supplied the sleeve pipe to pass through, the sleeve pipe passes the through-hole and sets up between two adjacent utmost point frames, one end is fixed in the mounting hole of one in two adjacent utmost point frames, the other end is fixed in the mounting hole of another in two adjacent utmost point frames, thus, after the utmost point frame that arranges that overlaps receives the pressure that comes from the end clamp plate with the gasket, the gasket is compressed, the sleeve pipe is used for resisting most pressure on the one hand and leads to the deformation dislocation in order to guarantee that the gasket is not excessively compressed, on the other hand is used for preventing that the gasket from extruding and blockking up the runner along runner hole creep under the effect of pressure.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a partial structural sectional view of an electrolytic cell provided by an embodiment of the present disclosure;

FIG. 2 is a partial structural cross-sectional view of a pole frame in an electrolytic cell provided by an embodiment of the present disclosure;

FIG. 3 is a schematic view of a structure of a pole frame in an electrolytic cell provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a gasket in an electrolytic cell provided by an embodiment of the present disclosure;

fig. 5 to 13 are schematic structural views of a sleeve in an electrolytic cell provided by an embodiment of the present disclosure.

Description of the reference numerals

1-pole frame; 11-a first mounting hole; 12-a second mounting hole; 13-a flow channel hole; 14-a first chamber; 15-a second chamber; 16-a radial flow channel; 17-a first step face; 18-a second step surface; 2-a gasket; 21-a through hole; 3-sleeving a pipe; 31-opening.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the terms "first", "second", and the like, if not otherwise specified, are used to distinguish one element from another, without order or importance. Moreover, in the following description, when referring to the figures, the same reference numbers in different figures represent the same or similar elements unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to the specific embodiment of the present disclosure, referring to fig. 1 to 4, an electrolytic cell is provided, which includes a plurality of pole frames 1, a gasket 2 and a sleeve 3, wherein one gasket 2 and one sleeve 3 are disposed between two adjacent pole frames 1, two opposite sides of each pole frame 1 are respectively provided with a mounting hole, the gasket 2 is provided with a through hole 21, the through hole 21 is communicated with the mounting hole, a mounting space is formed between two adjacent mounting holes, and the sleeve 3 is inserted into the through hole 21 and mounted in the mounting space.

Through the technical scheme, in the electrolysis trough that this disclosure provided, the mounting hole has been seted up and the intercommunication is passed through runner hole 13 to utmost point frame 1 both sides correspondence respectively, gasket 2 sets up through-hole 21 and can supply sleeve pipe 3 to pass through, sleeve pipe 3 passes through-hole 21 and sets up between two adjacent utmost point frames 1, one end is fixed in the mounting hole of one in two adjacent utmost point frames 1, the other end is fixed in the mounting hole of another in two adjacent utmost point frames 1, like this, after utmost point frame 1 and gasket 2 that overlap and arrange receive the pressure from the end clamp plate, gasket 2 is compressed, sleeve pipe 3 is used for resisting most pressure on the one hand in order to guarantee that gasket 2 is not excessively compressed and lead to the dislocation, on the other hand is used for preventing gasket 2 from extruding along runner hole 13 under the effect of pressure and blockking up the runner.

In the electrolytic cell provided by the present disclosure, referring to fig. 2, for convenience of description, two opposite sides of the pole frame 1 are respectively referred to as a first side and a second side, mounting holes of the two opposite sides are respectively referred to as a first mounting hole 11 and a second mounting hole 12, and a step surface formed by the first mounting hole 11 and the flow passage hole 13 is referred to as a first step surface 17, and a step surface formed by the second mounting hole 12 and the flow passage hole 13 is a second step surface 18, wherein the first mounting hole 11 is recessed from the first side toward the second side, and the second mounting hole 12 is recessed from the second side toward the first side, and further, the sleeve 3 has opposite first and second ends in the first direction, the first end of the same sleeve 3 is mounted to the first mounting hole 11 of one of the two adjacent pole frames 1, and the second end of the same sleeve 3 is mounted to the second mounting hole 12 of the other of the two adjacent pole frames 1.

In the electrolytic cell provided by the present disclosure, the pole frame 1 is provided with the flow passage hole 13, and a first step surface 17 and a second step surface 18 may be respectively formed between the flow passage hole 13 and the first mounting hole 11 and the second mounting hole 12, one end of the same sleeve 3 may be stopped at the first step surface 17 of one of the two adjacent pole frames 1, and the other end of the same sleeve 3 may be stopped at the second step surface 18 of the other of the two adjacent pole frames 1, wherein the first mounting hole 11 and the second mounting hole 12 may be selected to be consistent with the shape of the flow passage hole 13, such as circular or kidney-shaped, to form the first step surface 17 and the second step surface 18 with uniform size, which not only facilitates positioning of the sleeve 3 during mounting, but also facilitates machining. Of course, in other embodiments, the shapes of the first and

second mounting holes

11 and 12 may be configured in any suitable shape, and the disclosure is not limited in this respect.

In the embodiment provided by the present disclosure, the length of the sleeve 3 may be greater than the initial thickness of the gasket 2, and both ends may protrude from both sides of the gasket 2 when the sleeve 3 passes through the gasket 2, so that the sleeve 3 may be positioned in the first and second mounting

holes

11 and 12 before the gasket 2 is compressed. It is to be explained here that the initial thickness of the gasket 2 refers to the thickness of the gasket 2 without being compressed.

And, the length of the sleeve 3 can be less than or equal to the sum of the depth of the recess of the first mounting hole 11, the depth of the recess of the second mounting hole 12 and the compressed thickness of the gasket 2, so that when the overlapped polar frames 1 and the gasket 2 are pressed by the end pressing plate, the sleeve 3 does not prevent the gasket 2 from being compressed to the designed thickness.

Alternatively, the length of the sleeve may be equal to the sum of the depth of the recess of the first mounting hole 11, the depth of the recess of the second mounting hole 12, and the compressed thickness of the gasket 2, so that when the polar frames 1 and the gasket 2 arranged in an overlapping manner are not pressed by the end pressing plate, the first end of the same sleeve 3 may be stopped at the first step surface 17 of one of the two adjacent polar frames 1, and the second end may be stopped at the second step surface 18 of the other one of the two adjacent polar frames 1, so as to limit the sleeve 3 to the two polar frames 1, and prevent the sleeve 3 from moving in the thickness direction of the polar frames 1.

The length of the sleeve 3 can be 0-0.2 mm smaller than the sum of the depth of the recess of the first mounting hole 11, the depth of the recess of the second mounting hole 12 and the compressed thickness of the gasket 2, so that when the pole frame 1 and the gasket 2 are pressed by the end pressure plate, the sleeve 3 still has a large axial movement space due to an overlarge difference.

In the specific embodiment provided in the present disclosure, referring to fig. 2, the pole frame 1 may be provided with a first small chamber 14, a second small chamber 15, and a radial flow passage 16, the first small chamber 14 and the second small chamber 15 are isolated from each other, the radial flow passage 16 extends toward the inside of the pole frame 1 in the radial direction of the pole frame 1, the flow passage hole 13 is communicated with the first small chamber 14 or the second small chamber 15 through the radial flow passage 16, when the electrolytic cell is operated, one of the first small chamber 14 and the second small chamber 15 generates hydrogen gas, the other generates oxygen gas, and the gas is discharged from the different flow passage holes 13 through the different radial flow passages 16, wherein the shape of the radial flow passage 16 may be any suitable shape, and the present disclosure is not particularly limited thereto. Specifically, when the electrolytic cell is filled with the hydrogen lye mixture through the flow passage hole 13, the radial flow passage 16 is opened in the hydrogen side small chamber, and the electrolytic reaction is carried out in the hydrogen side small chamber; accordingly, when the electrolysis cell is supplied with the oxygen-lye mixture through the passage openings, the radial passages 16 open into the oxygen-side chamber, in which the electrolysis reaction takes place, so that the hydrogen-lye mixture and the oxygen-lye mixture do not mix with one another. Furthermore, when the cell is fed with lye through the passage openings, radial passages 16 are provided in the hydrogen-side chamber or the oxygen-side chamber (i.e. the first chamber 14 or the second chamber 15) depending on the design.

In the embodiment that this disclosure provided, the both ends of sleeve pipe 3 can imbed the mounting hole and with mounting hole clearance fit, like this, sleeve pipe 3 can closely cooperate with the through-hole 21 of gasket 2, the mounting hole of utmost point frame 1 both sides, prevent that gasket 2 from extruding from the gap under the effect of pressure, wherein, the inside edge of embedding back sleeve pipe 3 can with the edge parallel and level in runner hole 13, avoided the runner reducing and lead to the fluid flow inhomogeneous to take place the vortex, lead to the problem of 2 abnormal corrosions of gasket. Furthermore, the sleeve 3 may be opened with an opening 31, and the opening 31 is communicated with the radial flow passage 16 to allow the fluid to flow to the first small chamber 14 and the second small chamber 15, or to allow the gas to be discharged from the first small chamber 14 and the second small chamber 15 to the flow passage hole 13 for further collection.

In the embodiments provided in the present disclosure, the shape of the casing 3 may be configured as any suitable configuration according to actual requirements, and as shown in fig. 5 to 13, the casing 3 may be configured as a circular pipe, a kidney-shaped pipe, a square pipe, or the like.

Therein, in the embodiment shown in fig. 5 to 7, an opening 31 may extend through the sleeve 3 from the first end towards the second end to enable communication of the radial flow passage 16 with the flow passage bore 13. In this embodiment, the length of the opening 31 along the circumferential direction of the pole frame 1 may be greater than or equal to the length of the radial flow channel 16 along the circumferential direction of the pole frame 1, so as to communicate the radial flow channel 16 with the flow channel hole 13. Further, in a case where one flow passage hole 13 communicates with a plurality of radial flow passages 16, that is, in a case where a plurality of radial flow passages 16 communicate with the same flow passage hole 13, the length of the opening 31 opened in the sleeve 3 in the circumferential direction of the pole frame 1 is equal to or greater than the sum of the lengths of the corresponding plurality of radial flow passages 16 extending in the circumferential direction of the pole frame 1, that is, the opening 31 is provided for achieving communication of all of the plurality of radial flow passages 16 with the corresponding same flow passage hole 13.

In addition, in the embodiment shown in fig. 8 to 10, the opening 31 may be opened between both end portions of the sleeve 3 and extend in the axial direction of the pole frame 1, wherein the length of the opening 31 in the axial direction of the pole frame 1 is smaller than the length of the sleeve in the axial direction of the pole frame, that is, the opening 31 does not penetrate through the sleeve 3, and the communication of the radial flow passage 16 and the flow passage hole 13 is realized by the opening 31. In this embodiment, the length of the opening 31 along the circumferential direction of the pole frame 1 may be greater than or equal to the length of the radial flow channel 16 along the circumferential direction of the pole frame 1, so as to communicate the radial flow channel 16 with the flow channel hole 13. In addition, in the case where one flow passage hole 13 communicates with a plurality of radial flow passages 16, that is, in the case where a plurality of radial flow passages 16 communicate with the same flow passage hole 13, the length of the opening 31 formed in the sleeve 3 in the circumferential direction of the pole frame 1 is equal to or greater than the sum of the lengths of the corresponding plurality of radial flow passages 16 extending in the circumferential direction of the pole frame 1, that is, the opening 31 is provided for achieving communication between each of the plurality of radial flow passages 16 and the corresponding same flow passage hole 13.

Furthermore, in the embodiment shown in fig. 11 to 13, the opening 31 may be provided at one end of the sleeve 3 close to the radial flow channel 16 and extend in the axial direction of the pole frame 1, wherein the length of the opening 31 in the axial direction of the pole frame 1 is smaller than the length of the sleeve in the axial direction of the pole frame, that is, the opening 31 penetrates through one end of the sleeve 3 close to the radial flow channel, and the communication between the radial flow channel 16 and the flow channel hole 13 is realized by the arrangement of the opening 31. In this embodiment, the length of the opening 31 along the circumferential direction of the pole frame 1 may be greater than or equal to the length of the radial flow channel 16 along the circumferential direction of the pole frame 1, so as to communicate the radial flow channel 16 with the flow channel hole 13. In addition, in the case where one flow passage hole 13 communicates with a plurality of radial flow passages 16, that is, in the case where a plurality of radial flow passages 16 communicate with the same flow passage hole 13, the length of the opening 31 formed in the sleeve 3 in the circumferential direction of the pole frame 1 is equal to or greater than the sum of the lengths of the corresponding plurality of radial flow passages 16 extending in the circumferential direction of the pole frame 1, that is, the opening 31 is provided for achieving communication between each of the plurality of radial flow passages 16 and the corresponding same flow passage hole 13.

Specifically, as shown in fig. 1, two sleeves 3 and three pole frames 1, for convenience of description, the sleeve 3 located on the left side of the drawing of fig. 1 is referred to as a left-side sleeve, the sleeve 3 located on the right side of the drawing of fig. 1 is referred to as a right-side sleeve, and the three pole frames 1 are referred to as a left-side pole frame, a middle pole frame, and a right-side pole frame, respectively, the left-side sleeve communicates with the first small chamber 14 of the middle pole frame through a radial flow passage, and the right-side sleeve communicates with the first small chamber 14 of the right-side pole frame through a radial flow passage, wherein, in the embodiment shown in fig. 1, the opening 31 is an opening that extends along the first end portion toward the second end portion and that penetrates the sleeve 3 (as shown in fig. 5 to 7).

In the specific embodiment provided in the present disclosure, referring to fig. 3, the shape of the first mounting hole 11 and the second mounting hole 12 needs to be designed to match the selection of the casing 3, for example, when the casing 3 is a circular pipe, the first mounting hole 11 and the second mounting hole 12 are configured as circular holes, when the casing 3 is a kidney pipe, the first mounting hole 11 and the second mounting hole 12 are configured as kidney holes, and when the casing 3 is a square pipe, the first mounting hole 11 and the second mounting hole 12 are configured as square holes, which is not particularly limited by the present disclosure.

In the specific embodiment provided in the present disclosure, referring to fig. 3, the number of the flow channel holes 13, the first mounting holes 11, and the second mounting holes 12 may be plural, and the plurality of flow channel holes 13, the plurality of first mounting holes 11, and the plurality of second mounting holes 12 may be spaced apart from each other in the circumferential direction of the pole frame 1 and located on the same circumference of the pole frame 1, that is, the distance from the center of each of the plurality of flow channel holes 13, the plurality of first mounting holes 11, and the plurality of second mounting holes 12 to the center of the pole frame 1 is equal, so that the flow channel hole 13 located at the bottom of the pole frame 1 may be used to introduce the electrolyte, and the flow channel hole 13 located at the top of the pole frame 1 may be used to discharge the hydrogen or oxygen.

In the embodiment provided in the present disclosure, the material of the sleeve 3 should be selected to have an insulating property and a good mechanical strength, and therefore, the sleeve 3 may be made of one of materials such as a fiber material, a rubber material, a plastic material, a glass material, a ceramic material, a mica material, and an asbestos material, which is not particularly limited by the present disclosure. Furthermore, the sleeve 3 may also be made of a product of a fibrous material or a rubber material or a plastic material, or may also be made of a product of a ceramic material or a mica material or an asbestos material.

In summary, in the specific embodiment provided by the present disclosure, referring to fig. 1 to 4, an electrolytic cell is provided, which is composed of pole frames 1 and gaskets 2 arranged in a stacked manner, a sleeve 3 is arranged between two adjacent pole frames 1 and penetrates through the gaskets 2, end pressure plates and springs are arranged on two sides of the pole frames 1 and the gaskets 2 to fix the pole frames 1 and the gaskets 2, when the device is pressed, the thickness of the gaskets 2 is compressed, the sleeve 3 can ensure that the gaskets 2 are not compressed excessively to cause deformation and dislocation, and can also be used for preventing the gaskets 2 from extruding out along the flow passage holes 13 under the action of pressure to block the flow passage; when the electrolytic cell works, electrolyte is introduced from the flow passage holes 13, flows into the first small chamber 14 and the second small chamber 15 through the radial flow passages 16 and the openings 31 of the corresponding sleeves 3, carries out electrolytic reaction, and generates hydrogen and oxygen which are respectively discharged from the first small chamber 14 and the second small chamber 15 through different flow passage holes 13 on the upper part of the polar frame 1, and is separated and collected for subsequent operation.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides an electrolytic cell, its characterized in that, the electrolytic cell includes a plurality of utmost point frames, gasket and sleeve pipe, adjacent two be provided with one between the utmost point frame gasket and one the sleeve pipe, every the relative both sides of utmost point frame are provided with the mounting hole respectively, the gasket is provided with the through-hole, the through-hole with the mounting hole communicates with each other, adjacent two be formed with installation space between the mounting hole, the sleeve pipe wear to establish in the through-hole and install in the installation space.

2. The electrolytic cell according to claim 1, wherein the pole frames are provided with a flow passage hole, the flow passage hole is located between the two mounting holes, and step surfaces are formed between the flow passage hole and the two mounting holes, respectively, one end of the same sleeve is stopped at the step surface of one of the adjacent two pole frames, and the other end is stopped at the step surface of the other of the adjacent two pole frames.

3. The electrolyzer of claim 2 wherein the length of the sleeve is greater than the initial thickness of the gasket and the length of the sleeve is equal to or less than the sum of the depth of the depression of the two mounting holes and the compressed thickness of the gasket.

4. The electrolyzer of claim 3 characterized in that the length of the sleeve is 0-0.2 mm less than the sum of the depth of the depression of the two mounting holes and the compressed thickness of the gasket.

5. The electrolytic cell of claim 2 wherein the frame is provided with a first small chamber, a second small chamber and a radial flow passage, the first small chamber and the second small chamber being isolated from each other, the radial flow passage extending toward the inside of the frame in a radial direction of the frame, the flow passage hole communicating with the first small chamber or the second small chamber through the radial flow passage.

6. The electrolyzer of claim 5 characterized in that the sleeves are inserted into the mounting holes and are in clearance fit with the mounting holes, after insertion the inner edges of the sleeves are flush with the edges of the flow passage holes, and the sleeves are provided with openings which are in communication with the radial flow passages.

7. The electrolytic cell of claim 6 wherein the opening extends through the sleeve; alternatively, the first and second electrodes may be,

the opening extends along the axial direction of the polar frame, and the length of the opening in the axial direction of the polar frame is smaller than that of the sleeve in the axial direction of the polar frame.

8. The electrolytic cell of claim 7 wherein the length of the opening extending in the circumferential direction of the frame is equal to or greater than the length of the radial flow channels extending in the circumferential direction of the frame.

9. Electrolysis cell according to any one of claims 1 to 8, wherein said mounting holes are configured as round holes or kidney-shaped holes or square holes.

10. The electrolyzer of any of claims 2-8 characterized in that the number of the flow channel holes and the mounting holes are each plural, a plurality of the flow channel holes and a plurality of the mounting holes are arranged at intervals along the circumference of the polar frame, and a plurality of the flow channel holes and a plurality of the mounting holes are located on the same circumference of the polar frame.