CN214400746U

CN214400746U - Electrolytic cell

Info

Publication number: CN214400746U
Application number: CN202120568794.7U
Authority: CN
Inventors: 姜永官; 姜慧然
Original assignee: Shenzhen Chuanghui Hydrogen Technology Development Co ltd
Current assignee: Shenzhen Chuanghui Hydrogen Technology Development Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-10-15
Anticipated expiration: 2031-03-19

Abstract

The utility model provides an electrolytic bath which is used for producing hydrogen by electrolyzing solution; the electrolytic bath comprises an electrolytic cavity and a plurality of metal sheets. One side of the electrolytic cavity is provided with an electrolyte inlet, the electrolyte inlet is used for inputting electrolyte, and the other side of the electrolytic cavity is provided with an exhaust port; the metal sheets are vertically arranged in the electrolytic cavity and used for dividing the inner part of the electrolytic cavity into a plurality of electrolytic cells, at least two electrically connected metal sheets in the metal sheets are connected with a positive electrode, and one metal sheet is connected with a negative electrode; wherein, one side of the electrolysis cavity is also provided with an air inlet which is used for inputting air for diluting the electrolyzed hydrogen. The utility model discloses in the electrolysis trough that provides through when carrying out electrolysis production hydrogen with electrolyte, connect gas transmission device through air inlet, the air enters into the electrolysis trough in to reduce the concentration of electrolysis hydrogen, avoid hydrogen concentration too high.

Description

Electrolytic cell

Technical Field

The utility model relates to the field of electrolytic equipment, in particular to an electrolytic cell.

Background

With the development of chemical industry, the development and development of hydrogen production technology by water electrolysis are paid more and more attention and support by governments of various countries. In recent years, hydrogen energy development planning is established in China, the United states, Japan, Canada, European Union and the like, and development of hydrogen energy is taken as a strategic target of new energy in the 21 st century. At present, China has made various progress in the field of hydrogen energy.

The existing electrolysis equipment has the phenomena of high concentration of hydrogen after electrolysis and explosion in the process of hydrogen production by electrolysis, so that the traditional electrolysis tank has serious potential safety hazard in the process of hydrogen production by electrolysis. It is therefore desirable to provide an electrolytic cell that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrolytic cell, wherein an electrolyte inlet is arranged on one side of the electrolytic cell to input electrolyte, and an air outlet outputs electrolyzed gas; and an air inlet is arranged on one side of the electrolytic cell and is used for connecting an air conveying device and conveying air into the electrolytic cell so as to solve the problems that the hydrogen concentration of the hydrogen absorber after electrolysis is higher and the potential safety hazard is large in the prior art.

In order to solve the technical problem, the utility model adopts the technical scheme that: an electrolytic cell for producing hydrogen by electrolyzing a solution; it includes:

an electrolyte inlet is arranged on one side of the electrolytic cavity and used for inputting electrolyte, an exhaust port is arranged on the other side of the electrolytic cavity,

the distance from the exhaust port to the bottom surface of the electrolytic cavity is greater than the distance from the electrolyte inlet to the bottom surface of the electrolytic cavity by taking the bottom surface of the electrolytic cavity as a reference; and the number of the first and second groups,

a plurality of metal sheets vertically arranged in the electrolytic cavity and used for dividing the interior of the electrolytic cavity into a plurality of electrolytic cells, adjacent metal sheets are hermetically connected through an insulating rubber ring,

at least two of the metal sheets are connected with electricity, wherein one metal sheet is connected with positive electricity, one metal sheet is connected with negative electricity,

the metal sheets are provided with vent holes and electrolyte circulation ports, the vent holes are arranged above the electrolyte circulation ports and are correspondingly communicated with the exhaust ports, and the electrolyte circulation ports are correspondingly communicated with the electrolyte inlet;

and one side of the electrolysis cavity is also provided with an air inlet which is used for inputting air for diluting the electrolyzed hydrogen.

In the utility model, a plurality of metal sheets are also provided with adjusting through holes, the adjusting through hole on a single metal sheet is positioned between the vent hole and the electrolyte circulation hole, the adjusting through hole is used for adjusting the electrolyte level of the adjacent electrolysis cell,

the adjusting through holes in the metal sheets are communicated in a one-to-one correspondence mode.

In the utility model, adjacent to the distance between the adjusting through holes to the bottom surface of the electrolytic cavity is equal.

The utility model discloses in, adjacent between the adjusting through hole, be close to the adjusting through hole of gas vent is greater than and keeps away from to the distance of electrolysis cavity bottom surface the adjusting through hole of gas vent.

The utility model discloses in, a plurality of including the three sheetmetal that connects the electricity in the sheetmetal, two adjacent sheetmetal electrodes that connect the electricity are opposite.

In the utility model, the three metal sheets connected with electricity are two metal sheets connected with negative electricity and one metal sheet connected with positive electricity respectively;

the two metal sheets connected with the negative electrode are oppositely arranged on two sides of one metal sheet connected with the positive electrode, and the two metal sheets connected with the negative electrode are used for being connected with electricity to precipitate hydrogen; the metal sheet connected with the positive electrode is used for electrically separating out oxygen.

The utility model discloses in, at least one sheet metal one side of connecing the electricity is provided with the fin, the fin is used for reducing the heat that the sheet metal produced.

In the utility model, along a plurality of the array direction of the metal sheet, be close to fin one side electrolysis cell's width crescent.

In the utility model, along the arrangement direction of a plurality of metal sheets,

the ratio of the area of the metal sheet close to one side of the radiating fin to the area of the metal sheet far away from the radiating fin is less than 1: 1.

The utility model discloses in, the sheetmetal outer lane is provided with heat dissipation sleeve, heat dissipation sleeve inner wall with the sheetmetal is through heat dissipation pin fixed connection.

The utility model discloses compare in prior art, its beneficial effect is: the electrolytic cell of the utility model inputs the electrolyte through the electrolyte inlet; two metal sheet electrolytic solutions connected with positive and negative electrodes; the exhaust port is used for discharging hydrogen separated out by electrolysis; the utility model discloses a motor groove still is provided with air inlet on one side of electrolysis cavity, when the electrolysis trough carries out electrolysis with electrolyte and produces hydrogen, the electrolysis trough passes through air inlet and connects gas transmission device, inputs the air toward the electrolysis trough in, and the air of input mixes with the hydrogen that the electrolysis produced in the electrolysis trough to reduce the concentration of hydrogen in the export gas, avoided hydrogen concentration too high.

In addition, a plurality of in this embodiment the vertical setting of sheetmetal is in the electrolysis chamber, be used for with a plurality of electrolysis cell have been separated into to electrolysis chamber internal portion, have promoted electrolysis bath electrolysis hydrogen evolution's efficiency, just adjacent through insulating rubber ring sealing connection between the sheetmetal, promoted the stability of sheetmetal setting in the electrolysis chamber.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.

FIG. 1 is a side view of an electrolytic cell according to a first embodiment of the present invention.

FIG. 2 is a schematic view of the internal structure of an electrolytic cell according to a first embodiment of the present invention.

FIG. 3 is a schematic view of a second embodiment of the electrolytic cell of the present invention.

FIG. 4 is a schematic view of a third embodiment of the electrolytic cell of the present invention.

FIG. 5 is a perspective view showing the structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 6 is a schematic view showing an internal structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 7 is a schematic view showing a second structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 8 is a schematic view showing a third structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 9 is a perspective view showing a fourth structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 10 is a sectional view showing a fourth structure of an electrolytic cell according to a second embodiment of the present invention.

FIG. 11 is a perspective view showing a fifth construction of an electrolytic cell according to a second embodiment of the present invention.

Reference numbers for the first embodiment: the electrolytic cell comprises an electrolytic cell 1, an electrolytic cavity 11, an air inlet 11a, an electrolyte inlet 11b, an air outlet 11c, a first mounting plate 111, a second mounting plate 112, a connecting piece 113, a metal sheet 12, a vent hole 121, an electrolyte circulation port 122, an adjusting through hole 123 and an electrolytic cell 13; second embodiment of the electrolytic cell: metal sheet 22, first electrode sheet 22a, second electrode sheet 22b, and heat sink 24;

reference numbers for the second embodiment: an electrolytic cavity 31, an electrolyte inlet 31b, an air inlet 31a, an air outlet 31c, a metal sheet 32, a vent hole 321, an electrolyte circulation port 322, a regulating through hole 323, a first electrode sheet 32a, a second electrode sheet 32b, a third electrode sheet 32c and an electrolytic cell 33; second embodiment of the electrolytic cell: an electrolytic chamber 41, an electrolyte inlet 41b, an air inlet 41a, an exhaust port 41c, a metal sheet 42, a vent hole 421, an electrolyte circulation port 422, an adjusting through hole 423, and an electrolytic cell 43; the third embodiment of the electrolytic cell: a metal sheet 52, a first electrode sheet 52a, a second electrode sheet 52b, a third electrode sheet 52c, a first electrolytic cell 53a, a second electrolytic cell 53b, a first heat sink 54a, and a second heat sink 54 b; the fourth embodiment of the electrolytic cell: metal sheet 62, heat dissipation sleeve 65, heat dissipation pin 651, heat dissipation hole 652.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.

Referring to fig. 1 and 2, fig. 1 is a side view of an electrolytic cell according to a first embodiment of the present invention; FIG. 2 is a schematic view of the internal structure of an electrolytic cell according to a first embodiment of the present invention. The present invention provides a first embodiment of an electrolytic cell capable of solving the above technical problems.

The utility model provides an electrolysis trough's first embodiment does: an electrolytic cell for producing hydrogen by electrolyzing a solution; wherein, the electrolytic bath comprises an electrolytic cavity 11 and a plurality of metal sheets 12. Wherein, one side of the electrolytic cavity 11 is provided with an electrolyte inlet 11b, the electrolyte inlet 11b is used for connecting with the liquid supply device, and the electrolyte inlet 11b is used for inputting electrolyte; the other side of the electrolysis cavity 11 is provided with an exhaust port 11c, and the exhaust port 11c is used for being connected with an exhaust device and outputting electrolyzed gas.

The metal sheets 12 are vertically arranged in the electrolytic cavity 11 and used for dividing the inside of the electrolytic cavity 11 into a plurality of electrolytic cells 13. The utility model provides an adjacent through insulating rubber ring sealing connection between the sheetmetal, promoted the stability of sheetmetal setting in electrolysis cavity 11.

The utility model provides a plurality of in the sheetmetal 12 at least two sheetmetals 12 that connect the electricity, one of them sheetmetal 12 connects anodal electricity, and a sheetmetal 12 connects negative pole electricity. A plurality of metal sheets 12 are provided with vent holes 121 and electrolyte circulation ports 122, the vent holes 121 are arranged above the electrolyte circulation ports 122, the vent holes 121 are correspondingly communicated with the exhaust ports 11c, and the electrolyte circulation ports 122 are correspondingly communicated with the electrolyte inlets 11 b.

In the utility model, one side of the electrolysis cavity 11 is provided with an air inlet 11a, and the air inlet 11a is connected with the gas transmission device, thereby inputting the air for diluting the hydrogen after electrolysis.

The utility model discloses in the electrolysis trough that provides through when carrying out electrolysis production hydrogen with electrolyte, connect gas transmission device through air inlet 11a, the air enters into the electrolysis trough to reduce the concentration of electrolysis hydrogen, avoid hydrogen concentration too high.

The structure of the electrolytic cell of this example is further illustrated as follows:

in this embodiment, the bottom surface of the electrolytic chamber 11 is used as a reference; the distance from the air inlet 11a to the bottom surface of the electrolytic cavity 11 is greater than the distance from the electrolyte inlet 11b to the bottom surface of the electrolytic cavity 11; the distance from the exhaust port 11c to the bottom surface of the electrolytic chamber 11 is larger than the distance from the electrolyte inlet port 11b to the bottom surface of the electrolytic chamber 11.

In the present embodiment, the plurality of metal sheets 12 are provided with adjusting through holes 123, and the adjusting through holes 123 on a single metal sheet 12 are provided between the vent holes 121 and the electrolyte circulation ports 122. Namely, the distance between the through hole 123 and the bottom surface of the electrolytic chamber 11 is adjusted to be between the distance between the vent hole 121 and the bottom surface of the electrolytic chamber 11 and the distance between the empty electrolyte circulation port 122 and the bottom surface of the electrolytic chamber 11.

The utility model provides an adjust through-hole 123 for the liquid level between the balanced electrolysis cell 13, thereby the electrolyte liquid level that the pressure difference of avoiding in the electrolysis cell 13 leads to is inhomogeneous, has promoted the utility model discloses a security in the electrolysis trough use.

In this embodiment, the central holes of the adjusting through holes 123 between the metal sheets 12 are all arranged on a straight line, and the straight line where the adjusting through holes 123 between the metal sheets 12 are arranged is parallel to the straight line where the bottom surface of the electrolytic cell is located.

The electrolytic chamber 11 in the present embodiment includes an electrolytic chamber 11 including a first mounting plate 111, a second mounting plate 112, and a connecting member 113; wherein the first mounting plate 111 is arranged at one end of the electrolytic chamber 11, the electrolyte inlet 11b and the air inlet 11a are arranged on the first mounting plate 111, the second mounting plate 112 is arranged at the other end of the electrolytic chamber 11, and the air outlet 11c is arranged on the second mounting plate 112; the connecting member 113 is detachably connected to the metal sheet 12 along the arrangement direction of the first mounting plate 111 and the second mounting plate 112. The electrolytic tank in the utility model has simple structure and is convenient for assembly and production.

In addition, the exhaust port 11c in this embodiment may be provided with a hydrogen concentration detector; a regulating valve may be provided at the air intake port 11 a. The hydrogen concentration detector detects the concentration of the hydrogen discharged by the electrolytic cell and feeds back the concentration; the operator can adjust the amount of input air in time according to the concentration of discharged hydrogen, and the accuracy of the electrolytic cell in the using process is improved.

Referring to FIG. 3, FIG. 3 is a schematic diagram of a second embodiment of the electrolytic cell of the present invention. The second embodiment of the electrolytic cell of this example is explained as follows:

the utility model discloses in at least one sheetmetal 22 one side be provided with the fin, the fin is used for reducing the heat that this sheetmetal 22 produced. In this embodiment, the first electrode sheet 22a is a metal sheet 22 connected to the negative electrode, and the first electrode sheet 22a is used for electrically connecting to evolve hydrogen; the second electrode plate 22b is a metal plate 22 connected with a positive electrode, and the second electrode plate 22b is used for electrically connecting to precipitate oxygen; the side of the first electrode sheet 22a, which is far away from the second electrode sheet 22b, is provided with a heat sink, and the heat sink is used for reducing the heat generated by the first electrode sheet 22 a. Through the radiating fins 24 on one side of the first electrode plate 22a, excessive heating of the electrode plate is avoided in the process of electrically precipitating hydrogen from the first electrode plate 22a, and the stability of the efficiency of electrically precipitating hydrogen from the electrode plate is ensured.

In this embodiment, the width of the cells on the side closer to the fins 24 is gradually increased along the arrangement direction of the plurality of metal sheets 22. In the area with strong heat dissipation capacity, the distance between the adjacent metal sheets 22 is increased, so that the metal sheets in the electrolytic cell can be arranged at unequal intervals, the capacity of the electrolytic cell in the embodiment is improved, and the efficiency of preparing hydrogen by using electrolytic solution in the electrolytic cell is improved.

Further, in the present invention, along the arrangement direction of the plurality of metal sheets 22, the ratio of the area of the metal sheet near the heat sink 24 to the area of the metal sheet far from the heat sink 24 is less than 1:1, and the structure is shown in fig. 4. On the basis of unequal arrangement of the metal sheets in the electrolytic cell, the area of the metal sheet close to the radiating fin 24 is increased, so that the capacity of an electrolysis chamber in the electrolytic cell is further improved, and the efficiency of preparing hydrogen by using electrolytic solution in the electrolytic cell is further improved.

Referring to fig. 5 and 6, fig. 5 is a perspective view of an electrolytic cell structure according to a second embodiment of the electrolytic cell of the present invention, and fig. 6 is a schematic view of an internal structure of the electrolytic cell according to the second embodiment of the present invention.

A second embodiment of the cell of this example was as follows:

the electrolytic cell in this embodiment comprises an electrolytic chamber 31 and a number of metal sheets 32. Wherein the electrolyte inlet 31b and the air inlet 31a are disposed at one side of the electrolytic chamber 31, the air outlet 31c is disposed at the other side of the electrolytic chamber 31, and the electrolyte inlet 31b is used for inputting electrolyte. The distance from the exhaust port 31c to the bottom surface of the electrolytic chamber 31 is larger than the distance from the electrolyte inlet port 31b to the bottom surface of the electrolytic chamber 31 with reference to the bottom surface of the electrolytic chamber 31.

A plurality of all be provided with air vent 321 and electrolyte circulation mouth 132 on the sheetmetal 32, air vent 321 sets up electrolyte circulation mouth 132 top, just air vent 321 with the gas vent 31c corresponds the intercommunication, electrolyte circulation mouth 132 with electrolyte import 31b corresponds the intercommunication.

In this embodiment, the metal sheets 32 include three metal sheets connected to power, and two adjacent metal sheets connected to power have opposite electrodes. Preferably, the three electrically connected metal sheets in this embodiment are two metal sheets electrically connected to the negative electrode and one metal sheet electrically connected to the positive electrode. The two metal sheets connected with the negative electrode are oppositely arranged on two sides of one metal sheet connected with the positive electrode, and the two metal sheets connected with the negative electrode are used for being connected with electricity to precipitate hydrogen; the metal sheet connected with the positive electrode is used for electrically separating out oxygen.

The three electrically connected metal sheets in this embodiment are a first electrode sheet 32a, a second electrode sheet 32b and a third electrode sheet 32c, wherein the second electrode sheet 32b is opposite to the first electrode sheet 32a, and the second electrode sheet 32b and the first electrode sheet 32a have opposite polarities. The first electrode sheet 32a is a negative electrode sheet, and the second electrode sheet 32b is used for connecting electricity to precipitate hydrogen; the second electrode sheet 32b is a positive electrode sheet, and the second electrode sheet 32b is used for connecting electricity to generate oxygen; the third electrode sheet 32c is a negative electrode sheet, and the third electrode sheet 32c is used for being connected with electricity to precipitate hydrogen.

In the electrolytic cell in the embodiment, because the ratio of oxygen to hydrogen generated by electrolysis is 1:2, the first electrode plate 32a and the third electrode plate are oppositely arranged at two sides of the second electrode plate 32b, so that the pressure of hydrogen generated by electrolysis at two ends of the electrolytic cell is approximately the same as the pressure of oxygen generated in the middle of the motor cell, and the stability of the electrolytic cell in the use process is improved.

In addition, the utility model discloses an all be provided with on the sheetmetal 32 in the electrolysis trough and adjust through-hole 323, singly adjust through-hole 323 on the sheetmetal 32 sets up at air vent 321 and between electrolyte circulation mouth 322. Namely, the distance between the through hole 323 and the bottom surface of the electrolytic chamber 31, the distance between the vent hole 321 and the bottom surface of the electrolytic chamber 31, and the distance between the empty electrolyte flow port 322 and the bottom surface of the electrolytic chamber 31 are adjusted.

The utility model provides a plurality of adjusting through-hole 323 one-to-one intercommunication, adjusting through-hole 323 are used for balancing the liquid level between the electrolysis cell 33, thereby avoid the electrolyte liquid level that the pressure difference in the electrolysis cell 33 leads to inhomogeneous, have promoted the utility model discloses a security in the safety hydrogen absorption machine use.

Referring to FIG. 7, FIG. 7 is a schematic view of a second embodiment of an electrolytic cell according to the present invention. The second embodiment of the electrolytic cell of this example is explained as follows:

in this embodiment, all the metal sheets 42 in the electrolytic cell are provided with the adjusting through holes 423, and the adjusting through holes 423 of a single metal sheet 42 are arranged between the vent holes 421 and the electrolyte circulation ports 422. And the distance from the through hole 423 to the bottom surface of the electrolytic chamber 41 is adjusted; between the distance from the electrolyte inlet 41b to the bottom surface of the electrolytic chamber 41 and the distance from the gas outlet 41c to the bottom surface of the electrolytic chamber 41. The adjusting through holes 423 serve to balance the liquid level between the electrolysis cells 43, avoiding the pressure difference inside the electrolysis cells 43 and thus the resulting non-uniform electrolyte level.

Further, between adjacent regulating through holes 423, the distance from the regulating through hole 423 near the exhaust port 41c to the bottom surface of the electrolytic chamber 41 is larger than the distance from the regulating through hole 423 far from the exhaust port 41c to the bottom surface of the electrolytic chamber 41. In the first embodiment of the second embodiment of the electrolytic cell, the gas pressure in the electrolytic cell 43 is increased by gradually raising the height of the regulating hole near the end of the gas discharge port 41c, thereby facilitating gas discharge.

Referring to FIG. 8, FIG. 8 is a schematic view of a third embodiment of an electrolytic cell according to the present invention. The third embodiment of the electrolytic cell of this example is explained as follows:

in this embodiment, a heat sink is disposed on one side of at least one electrode plate, and the heat sink is used to reduce heat generated by the electrode plate and ensure the electrolysis efficiency of the electrolytic cell. The first heat sink 54a is provided on the first electrode sheet 52a side in the present embodiment, and the second heat sink 54b is provided on the third electrode sheet 52c side.

The width of the first electrolytic cell 53a on the side closer to the first fin 54a is gradually increased along the direction in which the second electrode sheet 52b and the first electrode sheet 52a are arranged. The width of the second electrolytic cell 13 on the side closer to the second fin 53b is gradually increased along the direction in which the second electrode sheet 52b and the third electrode sheet 52c are arranged.

In addition to the first embodiment of the second embodiment of the electrolytic cell, the heat generated by the electrode sheets is reduced by adding the heat dissipation fins, so that the electrolytic efficiency of the electrolytic sheets is ensured. In the area with strong heat dissipation capability, the distance between the adjacent metal sheets 52 is increased, so that the metal sheets 52 in the electrolytic cell are arranged at unequal intervals, the capacity of the electrolytic cell in the embodiment is improved, and the efficiency of preparing hydrogen by using electrolytic solution in the electrolytic cell can be improved.

Referring to FIGS. 9 and 10, FIG. 9 is a perspective view showing a fourth structure of an electrolytic cell according to a second embodiment of the present invention. FIG. 10 is a sectional view showing a fourth structure of an electrolytic cell according to a second embodiment of the present invention. The fourth embodiment of the electrolytic cell in this example is explained as follows:

the outer ring of the metal sheet 62 in the embodiment is provided with the heat dissipation sleeve 65, and the inner wall of the heat dissipation sleeve 65 is fixedly connected with the metal sheet 62 through the heat dissipation pin 651, so that the heat dissipation efficiency of the electrolytic cell is improved.

Further, heat dissipation sleeve 65 is including being provided with a plurality ofly, splices each other between a plurality of heat dissipation sleeves 65, and a plurality of heat dissipation sleeves 65 can dismantle with sheetmetal 62 and be connected, the dismouting of being convenient for.

In addition, the side wall of the heat dissipation sleeve 65 may further be provided with heat dissipation holes 652, the structure of which is shown in fig. 11.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. An electrolytic cell for producing hydrogen by electrolyzing a solution; it is characterized by comprising:

2. The electrolytic cell of claim 1, wherein a plurality of said metal sheets are further provided with an adjusting through hole, said adjusting through hole of a single said metal sheet is located between said vent hole and said electrolyte flow port, said adjusting through hole is used for adjusting the electrolyte level of adjacent said electrolytic cell,

3. The electrolytic cell according to claim 2, wherein the distance between adjacent ones of said regulating through holes to the bottom surface of said electrolytic chamber is equal.

4. The electrolytic cell of claim 2, wherein the distance from the regulating through hole close to the exhaust port to the bottom surface of the electrolytic cavity between the adjacent regulating through holes is larger than the distance from the regulating through hole far away from the exhaust port to the bottom surface of the electrolytic cavity.

5. The electrolytic cell of claim 1 wherein the plurality of metal sheets comprises three electrically connected metal sheets, and the electrodes of adjacent electrically connected metal sheets are opposite.

6. The electrolyzer of claim 5 characterized in that the three electrically connected metal sheets are two negatively electrically connected metal sheets and one positively electrically connected metal sheet;

7. The electrolyzer of claim 1 characterized in that at least one of the electrically connected metal sheets is provided with a heat sink on one side for reducing the heat generated by the metal sheet.

8. The electrolytic cell according to claim 7 wherein the width of said cells on the side closer to said fins increases in the direction of arrangement of said plurality of metal sheets.

9. The electrolytic cell of claim 7 wherein, along the direction of alignment of a plurality of said metal sheets,

10. The electrolytic cell of claim 1, wherein the outer ring of the metal sheet is provided with a heat dissipation sleeve, and the inner wall of the heat dissipation sleeve is fixedly connected with the metal sheet through heat dissipation pins.