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CN-224199491-U - Water electrolysis device and water electrolysis system

CN224199491UCN 224199491 UCN224199491 UCN 224199491UCN-224199491-U

Abstract

The application relates to a water electrolysis device and a water electrolysis system, wherein the water electrolysis device comprises a first tank body, a second tank body, a pipeline assembly and a heat exchange device, wherein an electrode for electrolyzing a target medium is arranged in the first tank body, the second tank body is arranged above the first tank body, the pipeline assembly comprises two groups of pipeline assemblies and is used for communicating the first tank body and the second tank body, and the heat exchange device acts on at least one group of pipeline assemblies to enable the two groups of pipeline assemblies to obtain a temperature difference and form fluid circulation between the first tank body and the second tank body. According to the technical scheme, the material conveying path in the electrolysis process, particularly the fluid circulation between the first tank body and the second tank body, is effectively improved, the stable operation of the electrolysis process is ensured, and the production efficiency and the safety are improved.

Inventors

  • ZHANG DEXING
  • ZHANG XISHENG
  • QIAN MING

Assignees

  • 杭州普浚能源科技有限公司

Dates

Publication Date
20260505
Application Date
20250424

Claims (10)

  1. 1. A water electrolysis apparatus comprising: the first tank body is internally provided with an electrode for electrolyzing a target medium; The second tank body is erected above the first tank body; The pipeline assembly comprises two groups and is used for communicating the first tank body and the second tank body; And the heat exchange device acts on at least one group of pipeline assemblies to obtain temperature difference between the two groups of pipeline assemblies and form fluid circulation between the first tank body and the second tank body.
  2. 2. The water electrolysis device according to claim 1, wherein the two sets of pipe assemblies comprise in particular: a cryogenic tube assembly corresponding to a location of the heat exchange device; The high-temperature tube assemblies are distributed on the same side of all the low-temperature tubes or on two sides of the low-temperature tube assemblies.
  3. 3. The water electrolysis apparatus of claim 2, wherein the low temperature tube assembly is a light pipe with heat exchange fins.
  4. 4. The water electrolysis apparatus according to claim 3, wherein the first tank and the second tank are cylindrical and axially parallel to each other, and the first tank and the second tank are aligned with each other in the direction of gravity.
  5. 5. The water electrolysis apparatus according to claim 4, wherein the heat exchange means is a fan acting on the cryotube assembly.
  6. 6. The water electrolysis apparatus according to claim 5, wherein the fan comprises a plurality of fans arranged in an array on a vertical plane.
  7. 7. The water electrolysis device according to claim 4, wherein the pipeline assembly comprises a plurality of vertical pipelines which are parallel to each other, and each vertical pipeline is sequentially arranged along the axial direction of the first tank body and/or the second tank body.
  8. 8. The water electrolysis device according to claim 7, wherein the top of the second tank body is provided with a gas-liquid separator, the gas-liquid separator is of a vertically arranged cylindrical structure, the bottom of the gas-liquid separator is in butt joint communication with the top of the second tank body, and the inside of the gas-liquid separator is filled with a filler.
  9. 9. The water electrolysis device according to claim 8, wherein the standing pipes are arranged coplanar and define a reference surface, the heat exchange means being located on one side of the reference surface; The top of the gas-liquid separator is provided with a gas phase outlet, the other side of the reference surface is provided with a heat dissipation air pipe communicated with the gas phase outlet, and the heat exchange device, the low-temperature pipe assembly and the heat dissipation air pipe are sequentially arranged along the horizontal direction.
  10. 10. A water electrolysis system comprising a cabinet and a water electrolysis device according to any one of claims 1 to 9 mounted within the cabinet.

Description

Water electrolysis device and water electrolysis system Technical Field The application relates to the technical field of water electrolysis equipment, in particular to a water electrolysis device and a water electrolysis system. Background The hydrogen energy is paid attention to as a clean and efficient secondary energy carrier, and the technology for producing hydrogen by electrolyzing water becomes one of core paths for preparing green hydrogen due to the characteristics of wide sources of raw materials (water) and zero carbon emission of products. For example, a fuel production system is disclosed in the related art, which comprises a synthesis gas production device for producing a synthesis gas including hydrogen and carbon monoxide from a carbonaceous raw material, a fuel production device for producing a fuel from the produced synthesis gas, a water electrolysis device for producing hydrogen by electrolyzing water, a hydrogen supply unit for supplying the produced hydrogen to the synthesis gas production device, a calculation unit for calculating an input energy to be input based on a first energy of the carbonaceous raw material, a second energy consumed in producing the hydrogen, a third energy consumed in producing the synthesis gas, and a fourth energy consumed in producing the fuel, and calculating a recovered energy to be recovered based on a fifth energy of the produced fuel, and a determination unit for determining a supply amount of the supplied hydrogen based on the calculated input energy and the recovered energy. In order to ensure the circulation of the target medium in the electrolysis process and the safe use of the equipment, a pipeline system such as a pump, a valve and the like for driving the circulation is required to be configured, so that the complexity of the system is provided, and the integration and the miniaturization of the equipment are not facilitated. Disclosure of utility model The application provides a water electrolysis device, which improves the circulation mode of a target medium in the electrolysis process, can ensure the stable operation of the electrolysis process and optimizes the equipment arrangement. An embodiment of the present application discloses a water electrolysis apparatus, comprising: the first tank body is internally provided with an electrode for electrolyzing a target medium; The second tank body is erected above the first tank body; The pipeline assembly comprises two groups and is used for communicating the first tank body and the second tank body; And the heat exchange device acts on at least one group of pipeline assemblies to obtain temperature difference between the two groups of pipeline assemblies and form fluid circulation between the first tank body and the second tank body. The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions. In one embodiment, the two sets of pipeline assemblies specifically include: a cryogenic tube assembly corresponding to a location of the heat exchange device; The high-temperature tube assemblies are distributed on the same side of all the low-temperature tubes or on two sides of the low-temperature tube assemblies. In one embodiment, the low temperature tube assembly is provided with heat exchange fins, and the high temperature tube assembly is a light pipe. In one embodiment, the first tank body and the second tank body are cylindrical and are axially parallel to each other, and the first tank body and the second tank body are aligned to each other in the gravity direction. In one embodiment, the heat exchange device is a fan acting on the cryotube assembly. In one embodiment, the fan includes a plurality of fans arranged in an array on a vertical plane. In one embodiment, the pipeline assembly comprises a plurality of vertical pipelines which are parallel to each other, and each vertical pipeline is sequentially arranged along the axial direction of the first tank body and/or the second tank body. In one embodiment, the top of the second tank body is provided with a gas-liquid separator, the gas-liquid separator is of a vertically arranged cylindrical structure, the bottom of the gas-liquid separator is in butt joint communication with the top of the second tank body, and the inside of the gas-liquid separator is filled with filler. In one embodiment, the standing pipes are arranged in a coplanar manner and define a reference surface, and the heat exchange device is positioned on one side of the reference surface; The top of the gas-liquid separator is provided with a gas phase outlet, the other side of the reference surface is provided with a heat dissipation air pipe communicated with the gas phase outlet, and the heat exchange