Electrolytic tank for producing hydrogen by electrolyzing water

Abstract

The utility model discloses an electrolytic cell for producing hydrogen by electrolyzing water, which comprises a polar plate cylinder frame group, a rear end plate is fixedly mounted on one side of the polar plate cylinder frame group, a front end plate is fixedly mounted on the other side of the polar plate cylinder frame group, and an anode terminal and a cathode terminal are respectively mounted at two ends of the surface of the polar plate cylinder frame group. The outer side of the circumference of the polar plate cylinder frame group is wrapped with an outer-layer protective cover, the rear end plate and the front end plate are fixed through a tie bar, and the two ends of the tie bar penetrate through penetrating holes formed in the rear end plate and the front end plate respectively and are screwed and fixed through nuts. According to the electrolytic tank for producing hydrogen by electrolyzing water, multiple groups of rectangular heat dissipation holes which are arranged at equal intervals are uniformly formed in the surfaces of the protective covers, and the polar plate cylinder frame group can be collided by arranging the eight groups of protective covers, so that the polar plate cylinder frame group is effectively prevented from being damaged by external force such as accidental impact and collision; damage of internal electrodes, diaphragms and other key components caused by external force collision is reduced, and therefore the service life of the electrolytic cell is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic cell field, concretely is a kind of electrolytic cell for hydrogen production of electrolytic water. BACKGROUND

[0002] The working principle of hydrogen production electrolytic cell is to produce hydrogen and oxygen by electrolyzing water. Direct current is passed into the electrolytic cell filled with potassium hydroxide or sodium hydroxide, and water molecules undergo electrochemical reaction on the electrode to decompose into hydrogen and oxygen. The chemical reaction formula is as follows:

[0003] Cathode: 2H2O + 2e - → H2↑ + 2OH -

[0004] Anode: 2OH - - 2e - → H2O + 1 / 2O2↑

[0005] Overall reaction: 2H2O → 2H2↑ + O2↑

[0006] The working principle of hydrogen production electrolytic cell involves knowledge in multiple fields such as electrochemistry and materials science, and its performance and efficiency are affected by various factors such as electrode material, electrolyte composition, working temperature and pressure, etc.

[0007] Under the impact of external force, the polar cylinder frame on the hydrogen production electrolytic cell may deform plastically, causing its shape to change and no longer meet the design requirements; affect the installation accuracy and sealing performance of the internal components of the electrolytic cell, which may cause gas leakage or electrolyte leakage. INVENTION CONTENTS

[0008] The utility model aims to provide a kind of electrolytic cell for hydrogen production of electrolytic water to solve the defects mentioned in the above background art.

[0009] To achieve the above purpose, a kind of electrolytic cell for hydrogen production of electrolytic water is provided, comprising a polar cylinder frame group, a rear end plate is fixedly installed on one side of the polar cylinder frame group, and a front end plate is fixedly installed on the other side of the polar cylinder frame group, while an anode terminal and a cathode terminal are respectively installed on the surface of the polar cylinder frame group at both ends, and an outer shield is wrapped around the circumference of the polar cylinder frame group, the rear end plate and the front end plate are fixed by a tie bar, and the ends of the tie bar pass through the perforations on the rear end plate and the front end plate and are fixed by nuts, the outer shield comprises a protective shield installed on the tie bar, and a positioning column is fixedly installed on the bottom of the protective shield.

[0010] Preferably, the rear end plate and the front end plate are both regular octagonal structures, and the rear end plate and the front end plate are arranged in parallel, while a hydrogen outlet pipe, an oxygen outlet pipe and an electrolyte inlet pipe are respectively installed on the surface of the front end plate, and the hydrogen outlet pipe, the oxygen outlet pipe and the electrolyte inlet pipe are distributed in isosceles triangle shape.

[0011] Preferably, the rear end plate and the front end plate are clamped and fixed by eight groups of pull ties to the polar plate cylinder frame group, and the distance between adjacent two groups of pull ties is consistent.

[0012] Preferably, the outer layer shield is in a cylindrical shape as a whole, and covers the outer side surface of the polar plate cylinder frame group and is concentric with the axial section of the polar plate cylinder frame group.

[0013] Preferably, the bottom of the protective cover is uniformly fixedly connected with eight groups of equidistantly arranged positioning columns, the bottom outer side of the eight groups of positioning columns is fixedly provided with rubber pads, the surface of the pull tie is uniformly provided with eight groups of positioning holes, the positioning holes are matched with the positioning columns in size, and the positioning columns are inserted into the inside of the positioning holes through the rubber pads on the outer side.

[0014] Preferably, the protective cover is made of metal material and has an arc-shaped end face structure, eight groups of protective covers are uniformly arranged, the eight groups of protective covers are centrally symmetric about the central axis of the polar plate cylinder frame group, and the surface of the protective cover is uniformly provided with multiple groups of equidistantly arranged rectangular heat dissipation holes.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses an outer layer shield is wrapped on the outer side of the polar plate cylinder frame group, eight groups of protective covers are uniformly arranged on the outer layer shield, the surface of the protective cover is uniformly provided with multiple groups of equidistantly arranged rectangular heat dissipation holes, the eight groups of protective covers can work in collision with the polar plate cylinder frame group, the polar plate cylinder frame group is effectively protected from accidental impact, knocking and other external force damage, the damage of internal electrodes, diaphragms and other key components caused by external force impact is reduced, and the service life of the electrolytic cell is prolonged.

[0017] 2. When the utility model needs to be overhauled, the multiple groups of positioning columns at the bottom of the protective cover are pulled out from the inside of the positioning hole, the protective cover can be conveniently disassembled, the positioning column is inserted into the inside of the positioning hole through the rubber pad on the outer side, the friction between the positioning column and the positioning hole is improved by the rubber pad, the protective cover does not shake during work, and the stability of the protective cover during use is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the utility model structure.

[0019] Figure 2 It is a hydrogen production electrolytic cell body schematic diagram.

[0020] Figure 3 It is a sectional view. Figure 1 ​

[0021] Figure 4 is a schematic view of the outer protective cover structure;

[0022] Figure 5 is a side view of Figure 4 .

[0023] In the figure, 1 is a rear end plate, 2 is a front end plate, 3 is a polar plate cylinder frame group, 4 is a hydrogen outlet pipe, 41 is an oxygen outlet pipe, 42 is an electrolyte inlet pipe, 5 is a pull rod, 51 is a positioning hole, 6 is an outer protective cover, 61 is a protective cover, 62 is a heat dissipation hole, 63 is a positioning column, and 64 is a rubber pad. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-5 , the utility model provides a kind of hydrogen production electrolytic cell of electrolytic water, including polar plate cylinder frame group 3, and one side of polar plate cylinder frame group 3 is fixedly installed rear end plate 1, and another side of polar plate cylinder frame group 3 is fixedly installed front end plate 2, while the surface of polar plate cylinder frame group 3 both ends is installed anode terminal and cathode terminal respectively, and the circumferential outside of polar plate cylinder frame group 3 is wrapped with outer protective cover 6, rear end plate 1 and front end plate 2 are fixed by pull rod 5, and the both ends of pull rod 5 respectively pass the through hole of rear end plate 1 and front end plate 2 and are fixed by screw nut by screwing, outer protective cover 6 includes protective cover 61 installed on pull rod 5, and the bottom of protective cover 61 is fixedly installed positioning column 63.

[0025] Working principle: the surface of the front end plate 2 is respectively provided with hydrogen outlet pipe 4, oxygen outlet pipe 41 and electrolyte inlet pipe 42; the electrolyte enters into the inside of the polar plate cylinder frame group 3 through the electrolyte inlet pipe 42, the surface of the polar plate cylinder frame group 3 is respectively provided with anode and cathode terminal at both ends, hydrogen and oxygen are generated by electrolytic water; direct current is passed into the electrolytic tank filled with potassium hydroxide or sodium hydroxide, water molecules are decomposed into hydrogen and oxygen by electrochemical reaction on the electrode; hydrogen is discharged from the hydrogen outlet pipe 4, oxygen is discharged from the oxygen outlet pipe 41; the outside of the polar plate cylinder frame group 3 is wrapped with the outer protective cover 6, the protective cover 61 on the outer protective cover 6 is uniformly provided with eight groups, the surface of the protective cover 61 is uniformly provided with a plurality of equidistantly arranged rectangular heat dissipation holes 62, the setting of the eight protective covers 61 can collide with the polar plate cylinder frame group 3, effectively protecting the polar plate cylinder frame group 3 from accidental impact, knocking and other external damage; during production, transportation, installation and daily use, various objects may come into contact with the electrolytic tank, the protective cover can provide a solid barrier for the cylinder frame, reduce the risk of deformation, cracking and other damage of the cylinder frame caused by external force collision; reduce the damage of internal electrode, diaphragm and other key components caused by external force collision, thereby prolonging the service life of the electrolytic tank; it is particularly pointed out that: the material of the protective cover 61 can also be plastic insulating material, so that the polar plate cylinder frame group 3 with electrical connection can provide additional electrical insulation protection; prevent accidental contact with live parts and reduce the risk of electric shock; when the polar plate cylinder frame group 3 needs to be repaired, the protective cover 61 is held, and the plurality of positioning columns 63 at the bottom of the protective cover 61 are pulled out from the inside of the positioning hole 51, so that the protective cover 61 can be conveniently disassembled.

[0026] The rear end plate 1 and the front end plate 2 are both regular octagonal structures, and the rear end plate 1 and the front end plate 2 are arranged in parallel, and the surface of the front end plate 2 is respectively provided with a hydrogen outlet pipe 4, an oxygen outlet pipe 41 and an electrolyte inlet pipe 42, and the hydrogen outlet pipe 4, the oxygen outlet pipe 41 and the electrolyte inlet pipe 42 are distributed in the shape of an isosceles triangle.

[0027] As a preferred embodiment, the polar plate cylinder frame group 3 is clamped and fixed by eight groups of pull bars 5 between the rear end plate 1 and the front end plate 2, and the distance between the adjacent two groups of pull bars 5 is consistent.

[0028] The outer protective cover 6 is cylindrically arranged as a whole, and the outer protective cover 6 covers the outside surface of the polar plate cylinder frame group 3 and has a concentric circle structure with the axial section of the polar plate cylinder frame group 3.

[0029] As a preferred implementation, the bottom of the protective cover 61 is uniformly and fixedly connected with eight groups of equidistantly arranged positioning columns 63, and the bottom outer side of the eight groups of positioning columns 63 is fixedly provided with rubber pads 64, while the surface of the tensile rib 5 is uniformly provided with eight groups of positioning holes 51, the positioning holes 51 are matched with the size of the positioning columns 63, and the positioning columns 63 are inserted into the inside of the positioning holes 51 through the outer side rubber pads 64.

[0030] The end face of the protective cover 61 made of metal material is arc-shaped structure, and the protective cover 61 is uniformly provided with eight groups, and the eight groups of protective covers 61 are centrally symmetric structures about the central axis of the polar plate cylinder frame group 3, and the surface of the protective cover 61 is uniformly provided with multiple groups of equidistantly arranged rectangular heat dissipation holes 62.

Claims

1. An electrolytic cell for producing hydrogen by electrolyzing water, comprising a plate and cylinder frame assembly (3), characterized in that: A rear end plate (1) is fixedly mounted on one side of the pole plate cylinder frame group (3), and a front end plate (2) is fixedly mounted on the other side of the pole plate cylinder frame group (3). At the same time, anode terminals and cathode terminals are respectively mounted on both ends of the surface of the pole plate cylinder frame group (3), and an outer protective cover (6) is wrapped around the outer circumference of the pole plate cylinder frame group (3). The rear end plate (1) and the front end plate (2) are fixed by a tie bar (5), and the two ends of the tie bar (5) pass through the through holes provided on the rear end plate (1) and the front end plate (2) and are screwed and fixed by nuts. The outer protective cover (6) includes a protective cover (61) mounted on the tie bar (5), and a positioning column (63) is fixedly mounted on the bottom of the protective cover (61).

2. The electrolytic cell for producing hydrogen by electrolysis of water according to claim 1, wherein: The rear end plate (1) and the front end plate (2) are both regular octagonal structures, and the rear end plate (1) and the front end plate (2) are arranged in parallel. At the same time, a hydrogen outlet pipe (4), an oxygen outlet pipe (41) and an electrolyte inlet pipe (42) are respectively installed on the surface of the front end plate (2), and the hydrogen outlet pipe (4), the oxygen outlet pipe (41) and the electrolyte inlet pipe (42) are distributed in the form of an isosceles triangle.

3. The electrolytic cell for producing hydrogen by electrolysis of water according to claim 1, wherein: The plate cylinder frame group (3) is clamped and fixed between the rear end plate (1) and the front end plate (2) via eight groups of tie bars (5), and the distance between two adjacent groups of tie bars (5) is consistent.

4. The electrolytic cell for producing hydrogen by electrolysis of water according to claim 1, wherein: The outer protective cover (6) is cylindrical in shape as a whole, and covers the outer surface of the pole plate cylinder frame group (3) and forms a concentric circle structure with the axial section of the pole plate cylinder frame group (3).

5. The electrolytic cell for producing hydrogen by electrolysis of water according to claim 1, wherein: The bottom of the protective cover (61) is evenly fixedly connected with eight groups of equidistantly arranged positioning columns (63), and the outer sides of the bottoms of the eight groups of positioning columns (63) are fixedly provided with rubber pads (64). At the same time, eight groups of positioning holes (51) are evenly opened on the surface of the reinforcement (5), and the sizes of the positioning holes (51) and the positioning columns (63) are adapted, and the positioning columns (63) are inserted into the interior of the positioning holes (51) through the rubber pads (64) on the outer sides.

6. The electrolytic cell for producing hydrogen by electrolysis of water according to claim 5, characterized in that: The protective cover (61) is made of metal and has an arc-shaped end surface. The protective covers (61) are evenly arranged in eight groups. The eight groups of protective covers (61) are centrally symmetrical about the central axis of the plate cylinder frame group (3). The surface of the protective cover (61) is evenly provided with multiple groups of rectangular heat dissipation holes (62) arranged at equal intervals.

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