Electrolytic tank device for electrolytic hydrogen production

Abstract

The invention relates to an electrolytic cell device for electrolytic hydrogen production. The electrolytic cell device comprises two groups of oppositely arranged mounting mechanisms, diaphragm mechanisms are arranged between the two groups of mounting mechanisms, and the adjacent diaphragm mechanisms are reversely arranged; electrode mechanisms are hermetically clamped between the mounting mechanism and the diaphragm mechanism, and the adjacent electrode mechanisms are reversely arranged; and a fastening mechanism is arranged on the mounting mechanism in a penetrating manner. According to the electrolytic cell device for electrolytic hydrogen production, the permeable membrane side electrode plate participates in ionization, the gas production rate is increased, and the permeable membrane is prevented from being damaged by the electrode plate; the processing of the liquid passing groove on the end surface is simpler and more convenient; the structural strength of the original main pole plate is reserved, the contact with the main pole plate is increased, the contact resistance is reduced, and the safety is improved; and the universality of each part is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy production, and in particular to an electrolyzer device for producing hydrogen by electrolysis. Background Art

[0002] Hydrogen electrolysis is a technology that splits water into hydrogen and oxygen through an electrochemical process. Direct current is used to break water molecules down into hydrogen ions and hydroxide ions. The hydrogen ions further combine to form hydrogen, while the hydroxide ions lose electrons at the anode to form oxygen.

[0003] At present, the mainstream process technologies for hydrogen production by electrolysis mainly include: alkaline water electrolysis technology and PEM water electrolysis technology. Alkaline water electrolysis technology uses potassium hydroxide or sodium hydroxide solution as the electrolyte, and transports negative ions through a porous permeable membrane to separate hydrogen and oxygen; PEM water electrolysis technology uses a proton exchange membrane as a key component of the electrolyzer. This membrane can efficiently produce a large amount of hydrogen without carbon dioxide emissions. Among them, alkaline water electrolysis technology has a commercial history of nearly a hundred years worldwide due to its high maturity and low acquisition cost. The technology is relatively mature, the electrolyzer equipment has a long life, and the cost is relatively low. In contrast, PEM water electrolysis technology has developed rapidly in the past decade. Although it occupies a large area, it has advantages such as higher energy conversion efficiency and longer service life.

[0004] Conventional electrolytic cells for hydrogen production by electrolysis consist of end plates, diaphragm assemblies, positive electrode assemblies, and negative electrode assemblies. However, conventional electrolytic cells for hydrogen production by electrolysis still have the following deficiencies:

[0005] 1. The permeable membrane is pressed tightly by the electrode plate, resulting in poor ionization effect and affecting gas production; the permeable membrane is easily damaged after being squeezed;

[0006] 2. The processing of each liquid trough is more complicated.

[0007] 3. The concave and convex structures on both sides of the mainboard are made by cold rolling, which is difficult to process and reduces the strength of the mainboard;

[0008] 4. The positive electrode assembly, negative electrode assembly, and both end plates need to be processed and produced separately. Summary of the Invention

[0009] In order to solve the technical problems existing in the background technology, the present invention provides an electrolytic cell device for electrolytic hydrogen production, in which the electrode plate on the permeable membrane side participates in ionization to increase gas production and prevent the electrode plate from damaging the permeable membrane; the end surface is processed by the liquid tank, which is simpler and more convenient; the structural strength of the original main electrode plate is retained, the contact with the main electrode plate is increased, the contact resistance is reduced, and the safety is improved; and the versatility of each component is optimized.

[0010] The technical solution adopted by the present invention is:

[0011] An electrolyzer device for producing hydrogen by electrolysis, comprising:

[0012] Two sets of mounting mechanisms are arranged opposite to each other, a diaphragm mechanism is arranged between the two sets of mounting mechanisms, and adjacent diaphragm mechanisms are arranged in reverse order;

[0013] Electrode mechanisms are sealed and sandwiched between the mounting mechanism and the diaphragm mechanism, and adjacent electrode mechanisms are arranged in reverse order.

[0014] A fastening mechanism is provided on the installation mechanism.

[0015] Furthermore, the installation mechanism includes:

[0016] A circular baffle plate, with supporting feet extending from the lower part of the baffle plate, fastening through-holes distributed in a circular array along the central axis of the edge of the baffle plate, a concave outer groove is provided on the end face of the baffle plate, a concave sealing groove A is provided at the outer edge of the outer groove, a concave inner groove is provided in the outer groove, an external liquid inlet hole penetrating the baffle plate is provided at the lower part of the outer groove, an external liquid discharge hole A and an external liquid discharge hole B penetrating the baffle plate are provided in parallel on the upper part of the outer groove, a concave external liquid inlet groove and an external liquid discharge groove are provided in the outer groove, the external liquid inlet groove is used to connect the external liquid inlet hole and the inner groove, the external liquid discharge groove is used to connect the external liquid discharge hole B and the inner groove, and an external support ring convex and an external support nipple are provided in the inner groove.

[0017] Furthermore, the diaphragm mechanism includes:

[0018] The annular membrane frame has an inward-concave sealing groove B at the edge of the end face of the membrane frame, and the lower and upper parts of the membrane frame are respectively provided with a membrane frame liquid inlet part and a membrane frame liquid discharge part. A permeable membrane is provided in the membrane frame, and the permeable membrane is protruded with an internal support ring convexity and an internal support nipple convexity.

[0019] Furthermore, the membrane frame liquid inlet portion includes:

[0020] A membrane frame liquid inlet hole passes through the membrane frame, and an inwardly concave membrane frame liquid inlet groove is provided on the end surface of the membrane frame, and the membrane frame liquid inlet groove is used to communicate with the inner ring of the membrane frame and the membrane frame liquid inlet hole;

[0021] The membrane frame drainage portion includes:

[0022] The membrane frame has drainage holes A and B running through it, and an end surface of the membrane frame is provided with a concave membrane frame drainage groove. There are two groups of membrane frame drainage grooves, which are respectively connected to the membrane frame drainage hole A and the membrane frame drainage hole B.

[0023] Furthermore, the electrode mechanism includes:

[0024] A circular pole frame, with a concave sealing groove C provided at the edge of the end face of the pole frame, a pole frame liquid inlet portion and a pole frame liquid drain portion provided at the lower and upper portions of the pole frame, respectively, an electrical seat protruding from the side wall of the pole frame, a main pole plate electrically connected to the electrical seat provided in the pole frame, main pole plate annular protrusions and main plate nipples protruding and electrically connected on both sides of the main pole plate, the main pole plate annular protrusions and main plate nipples symmetrically arranged on both sides of the main pole plate, and electrically abutted against an electrolytic plate, the other side of the electrolytic plate being flush with the end face of the pole frame;

[0025] Furthermore, upper and lower through grooves are provided at the upper and lower edges of the electrolytic plate. The lower through groove is provided just above the liquid inlet groove of the pole frame, and the upper through groove is provided just below the liquid outlet groove of the pole frame.

[0026] Furthermore, the pole frame liquid inlet portion includes:

[0027] A pole frame liquid inlet hole passes through the pole frame, and an inwardly concave pole frame liquid inlet groove is provided on the end surface of the pole frame, and the pole frame liquid inlet groove is used to connect the inner ring of the pole frame and the pole frame liquid inlet hole;

[0028] The pole frame drain portion includes:

[0029] The pole frame drainage holes A and B are passed through the pole frame, and the end surface of the pole frame is provided with an inwardly concave pole frame drainage groove. There are two groups of pole frame drainage grooves, which are respectively connected to the pole frame drainage holes B.

[0030] Furthermore, the external liquid inlet hole, the membrane frame liquid inlet hole, and the electrode frame liquid inlet hole are connected;

[0031] The outer liquid inlet tank, the membrane frame liquid inlet tank, and the pole frame liquid inlet tank are configured to be semicircular tubes with the same and matching structures;

[0032] The outer drainage trough, the membrane frame drainage trough, and the pole frame drainage trough are configured to have the same and matching semicircular tube shapes.

[0033] Furthermore, the electrode mechanism is provided in 2N groups, and the diaphragm mechanism is provided in 2N-1 groups, wherein N≥1;

[0034] The two sets of mounting mechanisms have the same structure, and the outer grooves are arranged opposite to each other;

[0035] The external drainage hole A of the mounting mechanism on one side, the pole frame drainage hole A of the odd-array electrode mechanism, the pole frame drainage hole B of the even-array electrode mechanism, the membrane frame drainage hole A of the odd-array diaphragm mechanism, the membrane frame drainage hole B of the even-array diaphragm mechanism, and the external drainage hole B of the mounting mechanism on the other side are interconnected;

[0036] The external drainage hole B of the mounting mechanism on one side, the pole frame drainage hole B of the odd-array electrode mechanism, the pole frame drainage hole A of the even-array electrode mechanism, the membrane frame drainage hole B of the odd-array diaphragm mechanism, the membrane frame drainage hole A of the even-array diaphragm mechanism, and the external drainage hole A of the mounting mechanism on the other side are interconnected.

[0037] Furthermore, the outer support ring convex, the inner support ring convex, and the main electrode plate ring convex are arranged in a concentric ring shape with the same structure, and separation gaps are respectively provided on the upper and lower parts of the outer support ring convex, the inner support ring convex, and the main electrode plate ring convex to facilitate the flow of electrolyte;

[0038] The outer supporting nipple, the inner supporting nipple and the main board nipple are arranged to be distributed in a circular array with the same structure.

[0039] The advantages of the electrolytic cell device for producing hydrogen by electrolysis of the present invention are:

[0040] 1. The electrolytic plate increases the contact surface between the electrolytic plate and the electrolyte through the outer support ring convex, outer support nipple convex, inner support ring convex, and inner support nipple convex, thereby increasing the gas production; the electrolytic plate does not contact the permeable membrane, thus preventing the electrode plate from damaging the permeable membrane;

[0041] 2. Each liquid trough is set on the end surface, which is easier to process;

[0042] 3. The main plate ring convexity and main plate nipple convexity improve the structural strength of the main plate; and the main plate ring convexity has a larger contact surface, which reduces the contact resistance and improves safety;

[0043] 4. By setting each liquid-passing hole and each liquid-passing groove, the versatility of each component is optimized, and its function can be realized by reversing. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required in the specific embodiments. The drawings in the following description are embodiments of the present invention.

[0045] Figure 1 This is a schematic diagram of an electrolytic cell device for producing hydrogen by electrolysis provided by an embodiment of the present invention;

[0046] Figure 2 This is a three-dimensional diagram of the installation mechanism of an electrolytic cell device for electrolytic hydrogen production provided by the present invention. Figure 1 ;

[0047] Figure 3 This is a three-dimensional diagram of the installation mechanism of an electrolytic cell device for electrolytic hydrogen production provided by the present invention. Figure 2 ;

[0048] Figure 4This is a three-dimensional schematic diagram of a diaphragm mechanism of an electrolyzer device for producing hydrogen by electrolysis provided by an embodiment of the present invention;

[0049] Figure 5 This is an example of the present invention Figure 4 An enlarged three-dimensional schematic diagram of part A;

[0050] Figure 6 This is an example of the present invention Figure 4 An enlarged three-dimensional schematic diagram of part B.

[0051] Figure 7 This is a three-dimensional exploded schematic diagram of the electrode structure of an electrolyzer device for electrolytic hydrogen production provided by an embodiment of the present invention;

[0052] Figure 8 This is an example of the present invention Figure 7 An enlarged three-dimensional schematic diagram of part C in the middle;

[0053] Figure 9 This is an example of the present invention Figure 7 An enlarged three-dimensional schematic diagram of part D in the middle.

[0054] In the picture:

[0055] 1. Installation mechanism,

[0056] 11. Baffle, 12. Support foot, 13. Fastening through hole, 14. External groove, 141. External liquid inlet hole, 142. External liquid inlet groove, 143. External liquid discharge hole A, 144. External liquid discharge hole B, 145. External liquid discharge groove, 146. Sealing groove A, 15. Inner groove, 151. External support ring convex, 152. External support nipple,

[0057] 2. Fastening mechanism,

[0058] 3. Diaphragm mechanism,

[0059] 30. Membrane frame, 31. Membrane frame liquid inlet portion, 311. Membrane frame liquid inlet hole, 312. Membrane frame liquid inlet groove, 32. Membrane frame liquid discharge portion, 321. Membrane frame liquid discharge hole A, 322. Membrane frame liquid discharge hole B, 323. Membrane frame liquid discharge groove, 33. Permeable membrane, 331. Inner support ring protrusion, 332. Inner support nipple protrusion, 301. Sealing groove B,

[0060] 4. Electrode mechanism,

[0061] 40. Pole frame, 41. Pole frame liquid inlet part, 411. Pole frame liquid inlet hole, 412. Pole frame liquid inlet groove, 42. Pole frame drainage part, 421. Pole frame drainage hole A, 422. Pole frame drainage hole B, 423. Pole frame drainage groove, 43. Main pole plate, 431. Main pole plate ring convex, 432. Main board nipple convex, 44. Electrical seat, 45. Electrolytic plate, 451. Lower through groove, 452. Upper through groove, 401. Sealing tank C. DETAILED DESCRIPTION

[0062] In order to more clearly and specifically illustrate the specific implementation objectives and implementation methods of the present invention, the following is a complete description of the technical solution of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of them. Without creative work, all other embodiments based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0063] The present invention provides an electrolytic cell device for producing hydrogen by electrolysis, such as Figure 1 As shown, including:

[0064] Two sets of mounting mechanisms 1 are arranged opposite to each other, such as Figure 2 、 Figure 3 As shown, including:

[0065] A circular baffle 11 is provided with a supporting foot 12 extending from the lower part of the baffle 11. A fastening through-hole 13 is provided in a circular array along the central axis of the edge of the baffle 11. A fastening through-hole 13 is provided in the fastening through-hole 13. A fastening mechanism 2 is provided in the fastening through-hole 13. A concave outer groove 14 is provided on the end surface of the baffle 11. A concave sealing groove A 146 is provided at the outer edge of the outer groove 14. A concave inner groove 15 is provided in the outer groove 14. An outer liquid inlet hole 141 penetrating the baffle 11 is provided at the lower part of the outer groove 14. An outer liquid discharge hole A 143 and an outer liquid discharge hole B 144 penetrating the baffle 11 are provided in parallel at the upper part of the outer groove 14. A concave outer liquid inlet groove 142 and an outer liquid discharge groove 145 are provided in the outer groove 14. The outer liquid inlet groove 142 is used to connect the outer liquid inlet hole 141 with the inner groove 15, and the outer liquid discharge groove 145 is used to connect the outer liquid discharge hole B 144 and the inner groove 15, an outer support ring protrusion 151 and an outer support nipple 152 are provided in the inner groove 15, the outer support ring protrusion 151 is arranged in a concentric ring shape with the center of the baffle 11 as a circle, and the upper and lower parts of the outer support ring protrusion 151 are respectively provided with separation gaps for facilitating the circulation of electrolyte, the outer support nipple 152 is arranged in the ring of the outer support ring protrusion 151, and a plurality of them are distributed in a circular array along the center of the baffle 11, and the protruding ends of the outer support ring protrusion 151 and the outer support nipple 152 are flush with the outer groove 14.

[0066] A diaphragm mechanism 3 is provided between the two sets of mounting mechanisms 1, and adjacent diaphragm mechanisms 3 are provided in reverse order, as shown in FIG. Figure 4 As shown, including:

[0067] The annular membrane frame 30 has a concave sealing groove B 301 provided at the edge of the end face of the membrane frame 30. The lower and upper parts of the membrane frame 30 are respectively provided with a membrane frame liquid inlet part 31 and a membrane frame liquid discharge part 32. A permeable membrane 33 is provided in the membrane frame 30. The permeable membrane 33 is protruding with an inner support ring protrusion 331 and an inner support nipple 332. The inner support ring protrusion 331 is arranged in a concentric ring shape with the center of the membrane frame 30 as a circle. The upper and lower parts of the inner support ring protrusion 331 are respectively provided with separation notches for facilitating the circulation of the electrolyte. The inner support nipple 332 is arranged in the ring of the inner support ring protrusion 331, and multiple inner support nipples 332 are distributed along the central circular array of the membrane frame 30.

[0068] The membrane frame liquid inlet portion 31, such as Figure 5 As shown, including:

[0069] A film frame liquid inlet hole 311 passes through the film frame 30, and an inwardly concave film frame liquid inlet groove 312 is provided on the end surface of the film frame 30, and the film frame liquid inlet groove 312 is used to connect the inner ring of the film frame 30 and the film frame liquid inlet hole 311;

[0070] The membrane frame drain portion 32, such as Figure 6 As shown, including:

[0071] The membrane frame 30 has a membrane frame drainage hole A 321 and a membrane frame drainage hole B 322 running through it. The end surface of the membrane frame 30 is provided with an inwardly concave membrane frame drainage groove 323. There are two groups of membrane frame drainage grooves 323, which are respectively connected to the membrane frame drainage hole A 321 and the membrane frame drainage hole B 322.

[0072] Electrode mechanisms 4 are sealed between the mounting mechanism 1 and the diaphragm mechanism 3, and adjacent electrode mechanisms 4 are reversely arranged. Figure 7 As shown, including:

[0073] The annular pole frame 40 has a concave sealing groove C 401 at the edge of the end face of the pole frame 40. The lower and upper parts of the pole frame 40 are respectively provided with a pole frame liquid inlet 41 and a pole frame liquid discharge part 42. The side wall of the pole frame 40 is protruding with an electrical seat 44. The electrical seat 44 is electrically connected to a copper busbar, which is electrically connected to the rectifier equipment on the power supply side. The pole frame 40 is provided with a main pole plate 43 electrically connected to the electrical seat 44. Both sides of the main pole plate 43 are protruding and electrically connected with a main pole plate ring protrusion 431 and a main plate nipple 432. The main pole plate ring protrusion 431 is provided in a concentric ring shape with the center of the pole frame 40 as a circle. The upper and lower parts of the main pole plate ring protrusion 431 are respectively provided with a hole for electrical connection. A separation gap for electrolyte circulation, the main plate nipple 432 is arranged in the ring of the main plate annular convex 431, and multiple are distributed in a circular array in the center of the pole frame 40. The main plate annular convex 431 and the main plate nipple 432 are symmetrically arranged on both sides of the main pole plate 43, and are electrically abutted with an electrolytic plate 45, and the other side of the electrolytic plate 45 is flush with the end face of the pole frame 40; an upper through groove 452 and a lower through groove 451 are provided at the upper and lower edges of the electrolytic plate 45, the lower through groove 451 is provided directly above the pole frame liquid inlet groove 412, and the upper through groove 452 is provided directly below the pole frame liquid discharge groove 423.

[0074] The pole frame liquid inlet portion 41, as Figure 8 As shown, including:

[0075] A pole frame liquid inlet hole 411 passes through the pole frame 40, and an inwardly concave pole frame liquid inlet groove 412 is provided on the end surface of the pole frame 40, and the pole frame liquid inlet groove 412 is used to connect the inner ring of the pole frame 40 and the pole frame liquid inlet hole 411;

[0076] The pole frame drain portion 42, as Figure 7 As shown, including:

[0077] The pole frame drainage hole A 421 and the pole frame drainage hole B 422 pass through the pole frame 40 . The end surface of the pole frame 40 is provided with an inwardly concave pole frame drainage groove 423 . There are two groups of pole frame drainage grooves 423 , which are respectively connected to the pole frame drainage hole B 422 .

[0078] To ensure smooth electrolyte flow, the external liquid inlet 141, membrane frame liquid inlet 311, and pole frame liquid inlet 411 are interconnected. The external liquid inlet trough 142, membrane frame liquid inlet trough 312, and pole frame liquid inlet trough 412 are designed as identical and matching semicircular tubes. The external liquid discharge trough 145, membrane frame liquid discharge trough 323, and pole frame liquid discharge trough 423 are designed as identical and matching semicircular tubes. To facilitate processing, each liquid flow channel is located on the end face of each component.

[0079] To ensure tightness:

[0080] Sealing gaskets are respectively provided between the mounting mechanism 1, the diaphragm mechanism 3, and the electrode mechanism 4, in the sealing groove A 146 and the sealing groove C 401, and in the sealing groove B 301 and the sealing groove C 401, and the sealing gaskets are clamped by the fastening mechanism 2;

[0081] The membrane frame drainage hole A 321 and the membrane frame drainage hole B 322 on the end face of the membrane frame 30 opposite to the membrane frame drainage groove 323 are respectively provided on the protruding conical tube; the outer drainage hole A 143 in the outer groove 14 and the pole frame drainage hole A 421 on the end face of the pole frame 40 are respectively provided with a cone sleeve that is sealed and plugged into the conical tube.

[0082] In order to ensure that the electrolytic plate 45 is reliably fixed, the electrolytic plate 45 is clamped by the outer support ring protrusion 151, the outer support nipple 152 and the main plate ring protrusion 431, the main board nipple 432 through the fastening mechanism 2, and is clamped by the inner support ring protrusion 331, the inner support nipple 332 and the main plate ring protrusion 431, the main board nipple 432.

[0083] In order to ensure the balance on the power consumption side, the electrode mechanism 4 is provided with 2N groups, and the diaphragm mechanism 3 is provided with 2N-1 groups, where N≥1.

[0084] The two sets of mounting mechanisms 1 have the same structure, and the outer grooves 14 are arranged opposite to each other;

[0085] The external drainage hole A 143 of the mounting mechanism 1 on one side, the pole frame drainage hole A 421 of the odd-array electrode mechanism 4, the pole frame drainage hole B 422 of the even-array electrode mechanism 4, the membrane frame drainage hole A 321 of the odd-array diaphragm mechanism 3, the membrane frame drainage hole B 322 of the even-array diaphragm mechanism 3, and the external drainage hole B 144 of the mounting mechanism 1 on the other side are interconnected;

[0086] The external drainage hole B 144 of the mounting mechanism 1 on one side, the pole frame drainage hole B 422 of the odd-array electrode mechanism 4, the pole frame drainage hole A 421 of the even-array electrode mechanism 4, the membrane frame drainage hole B 322 of the odd-array diaphragm mechanism 3, the membrane frame drainage hole A 321 of the even-array diaphragm mechanism 3, and the external drainage hole A 143 of the mounting mechanism 1 on the other side are interconnected.

[0087] Based on the above, and with reference to the embodiment of the electrolytic cell apparatus for hydrogen production by electrolysis, the present invention provides a basis for further development. The above description provides guidance for relevant personnel to make various changes and modifications without departing from the technical spirit of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined in accordance with the scope of the claims.

Claims

1. An electrolytic cell device for producing hydrogen by electrolysis, characterized in that: include: Two sets of mounting mechanisms (1) are arranged opposite to each other, a diaphragm mechanism (3) is arranged between the two sets of mounting mechanisms (1), and adjacent diaphragm mechanisms (3) are arranged in an inverted manner; Electrode mechanisms (4) are respectively sealed and clamped between the mounting mechanism (1) and the diaphragm mechanism (3), and adjacent electrode mechanisms (4) are arranged in an inverted manner; A fastening mechanism (2) is provided on the mounting mechanism (1).

2. The electrolytic cell device for producing hydrogen by electrolysis according to claim 1, characterized in that: The mounting mechanism (1) comprises: A circular baffle (11) is provided, wherein a supporting foot (12) is extended from the lower portion of the baffle (11), fastening holes (13) are provided in a circular array along the central axis of the edge of the baffle (11), an outer concave groove (14) is provided on the end surface of the baffle (11), an outer edge of the outer groove (14) is provided with a concave sealing groove A (146), an inner concave groove (15) is provided in the outer groove (14), an outer liquid inlet hole (141) penetrating the baffle (11) is provided at the lower portion of the outer groove (14), and an outer sealing groove (146) is provided at the outer edge of the outer groove (14). An outer liquid discharge hole A (143) and an outer liquid discharge hole B (144) penetrating the baffle (11) are arranged in parallel on the upper portion of the groove (14); an inner concave outer liquid inlet groove (142) and an outer liquid discharge groove (145) are arranged in the outer groove (14); the outer liquid inlet groove (142) is used to connect the outer liquid inlet hole (141) and the inner groove (15); the outer liquid discharge groove (145) is used to connect the outer liquid discharge hole B (144) and the inner groove (15); an outer supporting annular protrusion (151) and an outer supporting nipple protrusion (152) are arranged in the inner groove (15).

3. The electrolytic cell device for producing hydrogen by electrolysis according to claim 2, characterized in that: The diaphragm mechanism (3) comprises: A circular membrane frame (30) is provided with a concave sealing groove B (301) at the edge of the end face of the membrane frame (30), and a membrane frame liquid inlet portion (31) and a membrane frame liquid discharge portion (32) are provided at the lower and upper parts of the membrane frame (30), respectively. A permeable membrane (33) is provided in the membrane frame (30), and an inner supporting ring protrusion (331) and an inner supporting nipple protrusion (332) are provided on the permeable membrane (33).

4. The electrolytic cell device for producing hydrogen by electrolysis according to claim 3, characterized in that: The membrane frame liquid inlet portion (31) comprises: A membrane frame liquid inlet hole (311) passes through the membrane frame (30), and an inwardly concave membrane frame liquid inlet groove (312) is provided on the end surface of the membrane frame (30), wherein the membrane frame liquid inlet groove (312) is used to communicate with the inner ring of the membrane frame (30) and the membrane frame liquid inlet hole (311); The membrane frame drainage portion (32) comprises: A membrane frame drainage hole A (321) and a membrane frame drainage hole B (322) are provided through the membrane frame (30), and an inwardly concave membrane frame drainage groove (323) is provided on the end surface of the membrane frame (30). The membrane frame drainage groove (323) is provided in two groups and is respectively connected to the membrane frame drainage hole A (321) and the membrane frame drainage hole B (322).

5. The electrolytic cell device for producing hydrogen by electrolysis according to claim 4, characterized in that: The electrode mechanism (4) comprises: A circular pole frame (40) is provided with a concave sealing groove C (401) at the edge of the end face of the pole frame (40), and a pole frame liquid inlet portion (41) and a pole frame liquid discharge portion (42) are provided at the lower and upper parts of the pole frame (40), respectively. An electrical seat (44) is protruding from the side wall of the pole frame (40), and a main pole plate (43) electrically connected to the electrical seat (44) is provided in the pole frame (40). Main pole plate annular protrusions (431) and main plate nipples (432) are protruding and electrically connected on both sides of the main pole plate (43), and the main pole plate annular protrusions (431) and main plate nipples (432) are symmetrically arranged on both sides of the main pole plate (43) and are electrically abutted against an electrolytic plate (45), and the other side of the electrolytic plate (45) is flush with the end face of the pole frame (40).

6. The electrolytic cell device for producing hydrogen by electrolysis according to claim 5, characterized in that: An upper through groove (452) and a lower through groove (451) are provided at the upper and lower edges of the electrolytic plate (45); the lower through groove (451) is provided directly above the electrode frame liquid inlet groove (412); and the upper through groove (452) is provided directly below the electrode frame liquid discharge groove (423).

7. The electrolytic cell device for producing hydrogen by electrolysis according to claim 5, characterized in that: The pole frame liquid inlet portion (41) comprises: A pole frame liquid inlet hole (411) passes through the pole frame (40), and an inwardly concave pole frame liquid inlet groove (412) is provided on the end surface of the pole frame (40), wherein the pole frame liquid inlet groove (412) is used to connect the inner ring of the pole frame (40) and the pole frame liquid inlet hole (411); The pole frame drain portion (42) comprises: A pole frame drainage hole A (421) and a pole frame drainage hole B (422) are provided through the pole frame (40), and an inwardly concave pole frame drainage groove (423) is provided on the end surface of the pole frame (40). The pole frame drainage groove (423) is provided in two groups and is respectively connected to the pole frame drainage hole B (422).

8. The electrolytic cell device for producing hydrogen by electrolysis according to claim 7, characterized in that: The external liquid inlet hole (141), the membrane frame liquid inlet hole (311), and the pole frame liquid inlet hole (411) are arranged in communication; The outer liquid inlet groove (142), the membrane frame liquid inlet groove (312), and the pole frame liquid inlet groove (412) are configured as semicircular tubes with the same structure and matching with each other; The outer drainage groove (145), the membrane frame drainage groove (323), and the pole frame drainage groove (423) are configured as semicircular tubes with the same structure and matching with each other.

9. The electrolytic cell device for producing hydrogen by electrolysis according to claim 7, characterized in that: The electrode mechanism (4) is provided with 2N groups, and the diaphragm mechanism (3) is provided with 2N-1 groups, wherein N≥1; The two sets of mounting mechanisms (1) have the same structure, and the outer grooves (14) are arranged opposite to each other; The external drainage hole A (143) of the mounting mechanism (1) on one side, the pole frame drainage hole A (421) of the odd-array electrode mechanism (4), the pole frame drainage hole B (422) of the even-array electrode mechanism (4), the membrane frame drainage hole A (321) of the odd-array diaphragm mechanism (3), the membrane frame drainage hole B (322) of the even-array diaphragm mechanism (3), and the external drainage hole B (144) of the mounting mechanism (1) on the other side are interconnected; The external drainage hole B (144) of the mounting mechanism (1) on one side, the pole frame drainage hole B (422) of the odd-array electrode mechanism (4), the pole frame drainage hole A (421) of the even-array electrode mechanism (4), the membrane frame drainage hole B (322) of the odd-array diaphragm mechanism (3), the membrane frame drainage hole A (321) of the even-array diaphragm mechanism (3), and the external drainage hole A (143) of the mounting mechanism (1) on the other side are interconnected.

10. The electrolytic cell device for producing hydrogen by electrolysis according to claim 7, characterized in that: The outer support ring convex (151), the inner support ring convex (331), and the main pole plate ring convex (431) are arranged in a concentric ring shape with the same structure, and separation gaps are respectively provided on the upper and lower parts of the outer support ring convex (151), the inner support ring convex (331), and the main pole plate ring convex (431) to facilitate the circulation of electrolyte; The outer supporting nipple (152), the inner supporting nipple (332), and the mainboard nipple (432) are arranged to be distributed in a circular array with the same structure.

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