Water electrolysis hydrogen production cooling mechanism

By designing a cooling and heating system for hydrogen production via water electrolysis, the problem of heat recovery in traditional cooling systems has been solved, achieving efficient cooling of the electrolyzer and effective utilization of heat, and providing auxiliary heating functionality.

CN224077555UActive Publication Date: 2026-04-03HUAYI NEW ENERGY MATERIALS (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional water electrolysis hydrogen production cooling mechanisms cannot effectively recover the heat generated by the electrolyzer, resulting in energy waste and low cooling efficiency.

Method used

An electrolysis hydrogen production cooling mechanism including a cooling system and a heating system was designed. The electrolyzer is cooled by circulating cooling liquid through cooling pipes, and heat is stored in a heat storage tank. Geothermal pipes are used for auxiliary heating and heat recovery.

Benefits of technology

It achieves effective cooling of the electrolytic cell and recovery of heat, improves cooling efficiency, provides auxiliary heating in winter, and enhances the overall performance.

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Abstract

The utility model discloses a cooling mechanism for hydrogen production by electrolyzing water, and particularly relates to the technical field of cooling mechanisms, the cooling mechanism comprises an electrolytic bath, a cooling system and a heat supply system, a cooling pipeline is fixedly arranged in the electrolytic bath, a liquid inlet pipe is fixedly arranged at the top of the cooling pipeline, and a liquid outlet pipe is fixedly arranged at the bottom of the cooling pipeline. The heat supply system is specifically a geothermal pipeline; the cooling system comprises a heat storage cylinder and a cooling cylinder, a first pipe opening is fixedly formed in the bottom of the cooling cylinder, a first liquid guide pipe is fixedly installed at the end of the first pipe opening, a first pump machine is fixedly installed on the first liquid guide pipe, and a fourth pipe opening and a third liquid guide pipe are fixedly installed at the top of the cooling cylinder. And by arranging the cooling system, the electrolyte in the electrolytic bath is effectively cooled, effective recycling of heat is achieved, auxiliary heating is conducted on a plant, and the using effect of the whole cooling mechanism is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cooling mechanism technology, specifically a cooling mechanism for hydrogen production via water electrolysis. Background Technology

[0002] Electrolysis of water to produce hydrogen is a method that decomposes water into hydrogen and oxygen through an electrolysis process. The basic principle of this process is to use an electric current to separate the hydrogen and oxygen atoms in water molecules to produce hydrogen and oxygen. Electrolysis of water to produce hydrogen is widely used in the production of hydrogen energy, providing clean hydrogen for fuel cells, chemical synthesis and other industrial applications.

[0003] The process of producing hydrogen by electrolysis of water generates a lot of heat, which increases the temperature of the electrolyzer and inhibits the reaction efficiency. At high temperatures, the efficiency of the electrolysis reaction may decrease, leading to increased energy consumption. Therefore, it is necessary to cool the electrolyzer.

[0004] Traditional water electrolysis hydrogen production cooling systems typically employ cooling liquid circulation pipes within the electrolyzer to remove heat from the cell. These systems usually include cooling fans to assist in cooling the liquid, directly dissipating the heat carried by the liquid. This process leads to heat loss and hinders effective heat recovery from the electrolyzer, resulting in energy waste. Therefore, we propose a new water electrolysis hydrogen production cooling system to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a cooling mechanism for hydrogen production through water electrolysis to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water electrolysis hydrogen production cooling mechanism, comprising an electrolysis cell, a cooling system and a heating system, wherein a cooling pipe is fixedly installed in the electrolysis cell, an inlet pipe is fixedly installed at the top of the cooling pipe, an outlet pipe is fixedly installed at the bottom of the cooling pipe, and the heating system is specifically a geothermal pipe;

[0007] The cooling system includes a heat storage cylinder and a cooling cylinder. A first pipe opening is fixedly installed at the bottom of the cooling cylinder, a first liquid guide pipe is fixedly installed at the end of the first pipe opening, a first pump is fixedly installed on the first liquid guide pipe, and a fourth pipe opening and a third liquid guide pipe are fixedly installed at the top of the cooling cylinder.

[0008] The top of the heat storage cylinder is fixedly installed with a second pipe opening, the end of the second pipe opening is fixedly installed with a second pump, the end of the second pump and the end of the liquid outlet pipe are fixedly installed, the bottom of the heat storage cylinder is fixedly installed with a third pipe opening, a second liquid guide pipe and a fourth liquid guide pipe, and the second liquid guide pipe is fixedly installed with a third pump.

[0009] A three-way pipe is provided between the second liquid guide pipe and the first liquid guide pipe. A first valve is fixedly installed at the end of the three-way pipe near the first liquid guide pipe. The end of the first valve is fixedly installed at one end of the first liquid guide pipe. An eighth pump is fixedly installed at the end of the liquid inlet pipe. The eighth pump is fixedly installed at the end of the three-way pipe.

[0010] Preferably, a second valve is fixedly installed at one end of the three-way pipe near the second liquid guide pipe, and the end of the second valve and one end of the second liquid guide pipe are fixedly installed.

[0011] Preferably, a seventh pump is fixedly installed at the end of the third port.

[0012] Preferably, the inlet of the heating system is fixedly equipped with an inlet pipe, and the end of the inlet pipe is fixedly installed with the end of the seventh pump.

[0013] Preferably, a fourth pump is fixedly installed at the end of the fourth port.

[0014] Preferably, a drain pipe is fixedly installed at the outlet of the heating system, and the end of the drain pipe is fixedly installed at the end of the fourth pump.

[0015] Preferably, a fifth pump is fixedly installed on the third liquid guide tube.

[0016] Preferably, a sixth pump is fixedly installed on the fourth liquid guide tube.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) By setting up a cooling system, the electrolyte in the electrolytic cell is effectively cooled and the heat is effectively recovered and used to provide auxiliary heating for the plant, thereby improving the overall performance of the cooling system.

[0019] (2) By setting up a cooling system, the initially introduced electrolyte can be heated by thermal circulation, which helps to raise the temperature of the electrolyte for subsequent reactions, further improving the overall effectiveness of the cooling mechanism. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structural connection after the present invention is disassembled.

[0023] Figure 3 This is a schematic diagram of the cooling system in this utility model.

[0024] Figure 4 This is a structural schematic diagram of the cooling system in this utility model from another angle.

[0025] In the diagram: 1. Electrolytic cell; 2. Cooling system; 3. Heating system; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 4. Cooling pipe; 41. Liquid inlet pipe; 42. Liquid outlet pipe; 21. Heat storage tank; 211. Second port; 2111. Second pump; 212. Third port; 2121. Seventh pump; 213. Second guide pipe; 2131. Third pump; 214. Fourth guide pipe; 2141. Sixth pump; 22. Cooling tank; 221. First port; 222. First guide pipe; 2221. First pump; 223. Fourth port; 2231. Fourth pump; 224. Third guide pipe; 2241. Fifth pump; 23. T-junction; 231. First valve; 232. Second valve; 24. Eighth pump. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-4 As shown, this utility model provides a cooling mechanism for hydrogen production via water electrolysis, including an electrolyzer 1, a cooling system 2, and a heating system 3. A cooling pipe 4 is fixedly installed in the electrolyzer 1. An inlet pipe 41 is fixedly installed at the top of the cooling pipe 4, and an outlet pipe 42 is fixedly installed at the bottom of the cooling pipe 4. The cooling water enters through the top of the cooling pipe 4 and exits through the bottom of the cooling pipe 4, thereby effectively cooling the electrolyzer 1 through the circulating cooling water. The heating system 3 is specifically a geothermal pipe, which can be laid in the factory building for auxiliary heating in winter.

[0028] The cooling system 2 includes a heat storage cylinder 21 and a cooling cylinder 22. A second port 211 is fixedly installed on the top of the heat storage cylinder 21, and a second pump 2111 is fixedly installed at the end of the second port 211. The end of the second pump 2111 and the end of the liquid outlet pipe 42 are fixedly installed. By turning on the second pump 2111, the cooling water cools the electrolytic cell 1 and absorbs heat. The heat is then introduced into the heat storage cylinder 21 through the liquid outlet pipe 42 and the second port 211 for heat storage. A third port 212, a second liquid guide pipe 213, and a fourth liquid guide pipe 214 are fixedly installed at the bottom of the heat storage cylinder 21. A third pump 2131 is fixedly installed on the second liquid guide pipe 213, and a sixth pump 2141 is fixedly installed on the fourth liquid guide pipe 214.

[0029] A first pipe port 221 is fixedly installed at the bottom of the cooling cylinder 22, a first liquid guide pipe 222 is fixedly installed at the end of the first pipe port 221, a first pump 2221 is fixedly installed on the first liquid guide pipe 222, a fourth pipe port 223 and a third liquid guide pipe 224 are fixedly installed at the top of the cooling cylinder 22, and a fifth pump 2241 is fixedly installed on the third liquid guide pipe 224.

[0030] A three-way pipe 23 is provided between the second liquid guide pipe 213 and the first liquid guide pipe 222. A first valve 231 is fixedly installed at one end of the three-way pipe 23 near the first liquid guide pipe 222. The end of the first valve 231 is fixedly installed at one end of the first liquid guide pipe 222. An eighth pump 24 is fixedly installed at the end of the liquid inlet pipe 41. The eighth pump 24 is fixedly installed at the end of the three-way pipe 23. A second valve 232 is fixedly installed at one end of the three-way pipe 23 near the second liquid guide pipe 213. The end of the second valve 232 is fixedly installed at one end of the second liquid guide pipe 213. When the electrolytic cell 1 is being cooled, the second valve 232 is closed, and the first valve 231, the first pump 2221, and the eighth pump 24 are controlled to open. The water cooled in the cooling cylinder 22 enters again through the top of the cooling pipe 4 through the first pipe port 221, the first liquid guide pipe 222, the three-way pipe 23, and the liquid inlet pipe 41 to effectively cool the electrolytic cell 1.

[0031] A seventh pump 2121 is fixedly installed at the end of the third port 212; an inlet pipe 31 is fixedly installed at the inlet of the heating system 3, and the end of the inlet pipe 31 is fixedly installed at the end of the seventh pump 2121; a fourth pump 2231 is fixedly installed at the end of the fourth port 223; a drain pipe 32 is fixedly installed at the outlet of the heating system 3, and the end of the drain pipe 32 is fixedly installed at the end of the fourth pump 2231; in winter, the seventh pump 2121 and the fourth pump 2231 can be turned on, and the water that buffers heat in the heat storage tank 21 is introduced into the heating system 3 through the third port 212, the seventh pump 2121, and the inlet pipe 31 to provide auxiliary heating for the plant, realizing the effective recovery and use of heat. Subsequently, the water at the end of the heating system 3 cools down and is circulated into the cooling tank 22 through the drain pipe 32, the fourth pump 2231, and the fourth port 223.

[0032] Working principle: Geothermal pipes are laid inside the factory building, using a top-in, bottom-out configuration. Cooling water enters through the top of cooling pipe 4 and exits through the bottom of cooling pipe 4, thereby effectively cooling the electrolytic cell 1 through the circulation of cooling water.

[0033] By turning on the second pump 2111, the cooling water cools the electrolytic cell 1 and absorbs heat, which is then introduced into the heat storage cylinder 21 through the liquid outlet pipe 42 and the second pipe port 211 for heat storage.

[0034] In winter, the seventh pump 2121 and the fourth pump 2231 can be turned on. The water that has buffered heat in the heat storage tank 21 is introduced into the heating system 3 through the third port 212, the seventh pump 2121, and the liquid inlet pipe 31 to provide auxiliary heating for the factory building, thus realizing the effective recovery and use of heat. Subsequently, the water at the end of the heating system 3 cools down and is circulated into the cooling tank 22 through the drain pipe 32, the fourth pump 2231, and the fourth port 223.

[0035] When the electrolytic cell 1 is being cooled, the second valve 232 is closed, and the first valve 231, the first pump 2221 and the eighth pump 24 are opened. The water cooled in the cooling cylinder 22 enters again through the top of the cooling pipe 4 through the first pipe port 221, the first liquid guide pipe 222, the three-way pipe 23 and the liquid inlet pipe 41 to effectively cool the electrolytic cell 1.

[0036] In summer, the fifth pump 2241 can be turned on to introduce the externally cooled liquid into the cooling cylinder 22 through the third liquid guide pipe 224, and the sixth pump 2141 can be turned on to discharge the heat-stored water through the fourth liquid guide pipe 214 for recycling in other equipment that requires heat.

[0037] When the electrolyte initially introduced into the electrolytic cell 1 needs to be heated to the optimal temperature for reaction, the first valve 231 can be closed, and the second valve 232, the third pump 2131, and the eighth pump 24 can be opened. The water containing heat in the heat storage cylinder 21 can be introduced into the cooling pipe 4 through the second liquid guide pipe 213, the three-way pipe 23, and the liquid inlet pipe 41 to heat the initially introduced electrolyte through thermal circulation, thereby helping to raise the temperature of the electrolyte for subsequent reactions and further improving the overall cooling mechanism's effectiveness.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen cooling mechanism for electrolysis of water, comprising an electrolytic cell (1), a cooling system (2) and a heat supply system (3), characterized in that: The electrolytic cell (1) is fixedly installed with a cooling pipeline (4), the top of the cooling pipeline (4) is fixedly installed with an inlet pipe (41), the bottom of the cooling pipeline (4) is fixedly installed with an outlet pipe (42), and the heat supply system (3) is specifically a geothermal pipeline; The cooling system (2) comprises a heat storage cylinder (21) and a cooling cylinder (22), the bottom of the cooling cylinder (22) is fixedly installed with a first pipe opening (221), the end of the first pipe opening (221) is fixedly installed with a first liquid guide pipe (222), the first liquid guide pipe (222) is fixedly installed with a first pump (2221), the top of the cooling cylinder (22) is fixedly installed with a fourth pipe opening (223) and a third liquid guide pipe (224); The top of the heat storage cylinder (21) is fixedly installed with a second pipe opening (211), the end of the second pipe opening (211) is fixedly installed with a second pump (2111), the end of the second pump (2111) is fixedly installed with the outlet pipe (42), the bottom of the heat storage cylinder (21) is fixedly installed with a third pipe opening (212), a second liquid guide pipe (213) and a fourth liquid guide pipe (214), and the second liquid guide pipe (213) is fixedly installed with a third pump (2131); The second liquid guide pipe (213) and the first liquid guide pipe (222) are provided with a three-way pipe (23), one end of the three-way pipe (23) close to the first liquid guide pipe (222) is fixedly installed with a first valve (231), the end of the first valve (231) is fixedly installed with one end of the first liquid guide pipe (222), the end of the inlet pipe (41) is fixedly installed with an eighth pump (24), and the eighth pump (24) is fixedly installed with the end of the three-way pipe (23).

2. The hydrogen production cooling mechanism of claim 1, wherein: One end of the three-way pipe (23) close to the second liquid guide pipe (213) is fixedly installed with a second valve (232), and the end of the second valve (232) is fixedly installed with one end of the second liquid guide pipe (213).

3. The hydrogen production cooling mechanism of claim 1, wherein: The end of the third pipe opening (212) is fixedly installed with a seventh pump (2121).

4. The hydrogen production cooling mechanism of claim 3, wherein: The inlet of the heat supply system (3) is fixedly installed with an inlet pipeline (31), and the end of the inlet pipeline (31) is fixedly installed with the end of the seventh pump (2121).

5. The hydrogen production cooling mechanism of claim 4, wherein: The end of the fourth pipe opening (223) is fixedly installed with a fourth pump (2231).

6. The hydrogen production cooling mechanism of claim 5, wherein: The outlet of the heat supply system (3) is fixedly installed with an outlet pipeline (32), and the end of the outlet pipeline (32) is fixedly installed with the end of the fourth pump (2231).

7. The hydrogen generation cooling mechanism of claim 1, wherein: The third liquid guide pipe (224) is fixedly installed with a fifth pump (2241).

8. The hydrogen generation cooling mechanism of claim 1, wherein: The fourth liquid guide pipe (214) is fixedly installed with a sixth pump (2141).