PEM water electrolysis hydrogen production device

Abstract

The utility model discloses a PEM water electrolysis hydrogen production device which comprises a first electrolytic tank and a second electrolytic tank, one side wall of the first electrolytic tank and one side wall of the second electrolytic tank are respectively provided with an installation groove, and each installation groove is internally connected with a connecting bolt. And hydrogen outlets and water inlets are symmetrically formed in the side walls of the first electrolytic tank and the second electrolytic tank. The hydrogen production device has the beneficial effects that the placement boxes are arranged on the side walls of the first electrolytic bath and the second electrolytic bath, so that when the hydrogen production device is used for producing hydrogen, the cooling plates for refrigeration are placed in the placement boxes, and heat generated by the first electrolytic bath and the second electrolytic bath can be absorbed by the cooling plates; and the cooling plate takes away heat, so that the situation that bubbles are increased due to the high temperature of the first electrolytic cell and the second electrolytic cell can be avoided, and then the hydrogen production purity and the hydrogen production efficiency can be prevented from being reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen production device technical field, concretely relates to a PEM water electrolysis hydrogen production device. BACKGROUND

[0002] Water electrolysis hydrogen production is considered as the development direction of future hydrogen production, especially using renewable energy electrolysis water hydrogen production, it has the potential to transfer a large amount of renewable energy power to the industrial department difficult to decarbonize, PEM electrolysis water hydrogen production, that is, proton exchange membrane water electrolysis hydrogen production, refers to using proton exchange membrane as solid electrolyte, and using pure water as the raw material of electrolysis water hydrogen production.

[0003] The existing PEM water electrolysis hydrogen production device is connected with the water inlet in the use process, and then the corresponding direct current power supply of the first electrolytic cell and the second electrolytic cell can be electrolyzed, the hydrogen produced by electrolysis is transported to the hydrogen storage tank through the hydrogen outlet, but the electrolytic cell will heat up in the use process, which will increase the number of bubbles, and the bubbles produced in the electrolysis process will hinder the conversion efficiency of water decomposition, thereby reducing the purity and efficiency of hydrogen production, so a new type of PEM water electrolysis hydrogen production device is needed to solve these problems. UTILITY MODEL CONTENT

[0004] (I) technical problem to be solved

[0005] The technical problem to be solved by the utility model is to provide a PEM water electrolysis hydrogen production device which can be cooled and prevent the number of bubbles from increasing.

[0006] (II) technical scheme

[0007] The utility model discloses a PEM water electrolysis hydrogen production device, including first electrolytic cell and second electrolytic cell, the first electrolytic cell and the second electrolytic cell one side wall all are set up with mounting groove, every mounting groove all is connected with the connecting bolt, the first electrolytic cell and the second electrolytic cell lateral wall all are symmetrically provided with hydrogen outlet, water inlet, the first electrolytic cell and the second electrolytic cell lateral wall are installed with oxygen outlet away from one side of hydrogen outlet, the first electrolytic cell and the second electrolytic cell lateral wall are fixed with the placing box in the middle, the placing box is connected with the cooling plate, the cooling plate one side wall is fixed with the pull ring in the middle.

[0008] Further, the first electrolytic cell and the second electrolytic cell one side wall staggered setting has positive pole interface, negative pole interface, the first electrolytic cell and the second electrolytic cell between installation has bipolar titanium electrode plate.

[0009] By adopting the technical scheme, the positive electrode interface decomposes water molecules into oxygen and hydrogen ions through electrolysis, and the main function of the negative electrode interface is to receive current and generate hydrogen.

[0010] Further, the mounting groove is formed on the side wall of the first electrolytic tank and the second electrolytic tank, and the mounting groove is inserted with the connecting bolt.

[0011] By adopting the technical scheme, the mounting groove cooperates with the connecting bolt to assemble and fix the first electrolytic tank and the second electrolytic tank together.

[0012] Further, the positive electrode interface is formed on the first electrolytic tank, and the negative electrode interface is formed on the second electrolytic tank.

[0013] By adopting the technical scheme, the bipolar titanium plate can play a role of structural support, providing a stable frame for the electrolytic tank, and can also collect gas and water flow, ensuring the supply of reactants and the unobstructed discharge path of products.

[0014] Further, the hydrogen outlet and the water inlet are both threadedly connected with the first electrolytic tank and the second electrolytic tank.

[0015] By adopting the technical scheme, the hydrogen outlet can more conveniently transport the hydrogen generated by electrolysis, and the water inlet can more conveniently input water into the first electrolytic tank and the second electrolytic tank.

[0016] Further, the first electrolytic tank and the second electrolytic tank are both threadedly connected with the oxygen outlet, and the first electrolytic tank and the second electrolytic tank are both welded with the placing box.

[0017] By adopting the technical scheme, the oxygen outlet can conveniently discharge the oxygen generated in the electrolysis process of the first electrolytic tank and the second electrolytic tank, and can ensure that the collected hydrogen is pure and does not contain oxygen.

[0018] Further, the placing box is slidingly connected with the cooling plate, and the cooling plate is made of stainless steel.

[0019] By adopting the technical scheme, the first electrolytic tank and the second electrolytic tank can more stably fix the placing box, and the placing box can more conveniently place the cooling plate, so that the cooling plate is attached to the side wall of the first electrolytic tank and the second electrolytic tank, thereby completing heat absorption and cooling.

[0020] Further, the cooling plate is welded with the pull ring, and the pull ring is a circular ring structure.

[0021] By adopting the technical scheme, the pull ring can be fixed more firmly by the cooling plate, and the cooling plate can be pulled out from the placing box for replacement.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In order to solve the problem that the existing PEM water electrolysis hydrogen production device generates heat in the use process, the number of bubbles increases, the bubble generated in the electrolysis process hinders the conversion efficiency of the water decomposition ability, and the purity and efficiency of hydrogen production are reduced, the utility model discloses a placing box is arranged on the side wall of the first electrolytic tank and the second electrolytic tank, when the hydrogen production device is used for hydrogen production, the refrigerated cooling plate is placed in the placing box, the heat generated by the first electrolytic tank and the second electrolytic tank can be absorbed by the cooling plate, so that the heat dissipation in the electrolysis process can be realized, the heat taken away by the cooling plate can avoid the increase of the bubble caused by the high temperature of the first electrolytic tank and the second electrolytic tank, and the purity and efficiency of hydrogen production can be prevented from being reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is the structure diagram of the PEM water electrolysis hydrogen production device of the utility model;

[0026] Fig. 2 is the front view of the PEM water electrolysis hydrogen production device of the utility model.

[0027] The following is explained:

[0028] 1, the first electrolytic tank;2, the second electrolytic tank;3, the mounting groove;4, the connecting bolt;5, the hydrogen outlet;6, the water inlet;7, the oxygen outlet;8, the placing box;9, the cooling plate;10, the pull ring;11, the positive electrode interface;12, the negative electrode interface;13, the bipolar titanium electrode plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0030] As Figs. 1-2As shown, the PEM water electrolysis hydrogen production device in this embodiment includes a first electrolytic cell 1 and a second electrolytic cell 2, and the side walls of the first electrolytic cell 1 and the second electrolytic cell 2 are each provided with a mounting groove 3, and each mounting groove 3 is connected with a connecting bolt 4. The mounting groove 3 and the connecting bolt 4 can be matched to assemble and fix the first electrolytic cell 1 and the second electrolytic cell 2 together. The side walls of the first electrolytic cell 1 and the second electrolytic cell 2 are each symmetrically provided with a hydrogen outlet 5, a water inlet 6, the hydrogen outlet 5 can more conveniently transport the hydrogen generated by electrolysis out, the water inlet 6 can more conveniently input water into the first electrolytic cell 1 and the second electrolytic cell 2, and the side wall of the first electrolytic cell 1 and the second electrolytic cell 2 away from the hydrogen outlet 5 is provided with an oxygen outlet 7, which can conveniently discharge the oxygen generated in the electrolysis process of the first electrolytic cell 1 and the second electrolytic cell 2, so as to ensure that the collected hydrogen is pure and does not contain oxygen. The side wall of the first electrolytic cell 1 and the second electrolytic cell 2 is centrally fixed with a placing box 8, the placing box 8 is connected with a cooling plate 9, and the side wall of the cooling plate 9 is centrally fixed with a pull ring 10. The first electrolytic cell 1 and the second electrolytic cell 2 can more stably fix the placing box 8, the placing box 8 can more conveniently place the cooling plate 9, the cooling plate 9 can be conveniently attached to the side wall of the first electrolytic cell 1 and the second electrolytic cell 2, so as to complete the heat absorption and cooling.

[0031] As shown, Figs. 1-2 In this embodiment, the side walls of the first electrolytic cell 1 and the second electrolytic cell 2 are staggered with a positive electrode interface 11 and a negative electrode interface 12, a bipolar titanium electrode plate 13 is installed between the first electrolytic cell 1 and the second electrolytic cell 2, the positive electrode interface 11 decomposes water molecules into oxygen and hydrogen ions through electrolysis, the main function of the negative electrode interface 12 is to receive current and generate hydrogen, the mounting groove 3 is formed on the side wall of the first electrolytic cell 1 and the second electrolytic cell 2, the mounting groove 3 is inserted with the connecting bolt 4, the positive electrode interface 11 is formed on the first electrolytic cell 1, the negative electrode interface 12 is formed on the second electrolytic cell 2, the bipolar titanium electrode plate 13 can play a role of structural support and provide a stable frame for the electrolytic cell, and can also collect gas and water flow to ensure the supply of reactants and the unobstructed discharge path of the generated product. The hydrogen outlet 5 and the water inlet 6 are both threadedly connected with the first electrolytic cell 1, the hydrogen outlet 5 and the water inlet 6 are both threadedly connected with the second electrolytic cell 2, the first electrolytic cell 1 and the second electrolytic cell 2 are both threadedly connected with the oxygen outlet 7, the first electrolytic cell 1 and the second electrolytic cell 2 are both welded with the placing box 8, the placing box 8 is slidingly connected with the cooling plate 9, the cooling plate 9 is made of stainless steel, the cooling plate 9 is welded with the pull ring 10, the pull ring 10 is a circular ring structure, the cooling plate 9 can more stably fix the pull ring 10, and the pull ring 10 can conveniently pull out the cooling plate 9 from the placing box 8 for replacement.

[0032] The specific implementation process of the embodiment is as follows: in use, first, the water inlet pipe is connected with the water inlet pipe of the external water tank, the placing box 8 is arranged on the side wall of the first electrolytic tank 1 and the second electrolytic tank 2, and when the hydrogen production device is used to produce hydrogen, the refrigerated cooling plate 9 is placed in the placing box 8, so that the heat generated by the first electrolytic tank 1 and the second electrolytic tank 2 can be absorbed by the cooling plate 9, thereby achieving heat dissipation during electrolysis, and the heat taken away by the cooling plate 9 can avoid the increase of bubbles caused by high temperature of the first electrolytic tank 1 and the second electrolytic tank 2, thereby preventing the purity and efficiency of hydrogen production from being reduced.

[0033] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PEM water electrolysis hydrogen generator, characterized by: The utility model relates to electrolytic cell technical field, including first electrolytic cell (1) and second electrolytic cell (2), one side wall of first electrolytic cell (1) and second electrolytic cell (2) are all set up with mounting groove (3), every mounting groove (3) is connected with the connecting bolt (4) in, one side wall of first electrolytic cell (1) and second electrolytic cell (2) is all set up with hydrogen outlet (5), water inlet (6) symmetrically, the oxygen outlet (7) of first electrolytic cell (1) and second electrolytic cell (2) side wall is installed away from hydrogen outlet (5) side, the placing box (8) of first electrolytic cell (1) and second electrolytic cell (2) side wall is fixed centrally, the cooling plate (9) is connected in the placing box (8), the pull ring (10) is fixed in one side wall of cooling plate (9) centrally.

2. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: One side wall of first electrolytic cell (1) and second electrolytic cell (2) is staggered and set with positive electrode interface (11), negative electrode interface (12), first electrolytic cell (1) and second electrolytic cell (2) are installed with bipolar titanium electrode plate (13) between.

3. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: The mounting groove (3) is shaped on the side wall of first electrolytic cell (1) and second electrolytic cell (2), and the mounting groove (3) is inserted with the connecting bolt (4).

4. The PEM water electrolysis device for hydrogen production according to claim 2, characterized in that: The positive electrode interface (11) is shaped on the first electrolytic cell (1), and the negative electrode interface (12) is shaped on the second electrolytic cell (2).

5. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: The hydrogen outlet (5) and the water inlet (6) are both screwed with the first electrolytic cell (1), and the hydrogen outlet (5) and the water inlet (6) are both screwed with the second electrolytic cell (2).

6. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: The first electrolytic cell (1) and the second electrolytic cell (2) are both screwed with the oxygen outlet (7), and the first electrolytic cell (1) and the second electrolytic cell (2) are both welded with the placing box (8).

7. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: The placing box (8) is slidingly connected with the cooling plate (9), and the cooling plate (9) is made of stainless steel.

8. The PEM water electrolysis device for hydrogen production according to claim 1, characterized in that: The cooling plate (9) is welded with the pull ring (10), and the pull ring (10) is a circular ring structure.

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