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A medium and high pressure solid polymer water electrolysis device

A solid polymer, water electrolysis technology, applied in electrolysis process, electrolysis components, chemical industry, etc., can solve the problems of unsuitable medium and high voltage operation, difficult maintenance, complex system, etc., to achieve improved safety, simple and simplified system process The effect of the system

Active Publication Date: 2016-05-11
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is relatively little research on the system. The existing SPE system has disadvantages such as complex system, difficult maintenance, and not suitable for medium and high voltage operation. Therefore, it is necessary to develop an efficient SPE water electrolysis system suitable for medium and high pressure operation.

Method used

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  • A medium and high pressure solid polymer water electrolysis device
  • A medium and high pressure solid polymer water electrolysis device
  • A medium and high pressure solid polymer water electrolysis device

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Embodiment 1

[0035] Such as figure 1As shown, it is a schematic flow diagram of the medium and high pressure solid polymer electrolyte water electrolysis system of the present invention, which is composed of an electrolytic cell stack, a gas separation and management process, a water supply and management process, and a cooling part process. The electrolytic cell stack adopts the water supply mode on the anode side, and the structure of the anode water separator is as follows: figure 2 As shown, there is a water-cooling jacket on the outside, so as to have the triple functions of the gas-water separator, the anode water supply tank, and the radiator. This embodiment is especially suitable for small systems, and does not require additional heat dissipation equipment. In this embodiment, the hydrogen production capacity is 1Nm 3 / h, the specific process is as follows.

[0036] The pure water stored in the lower part of the water separator 14 on the anode side is injected into the anode o...

Embodiment 2

[0040] image 3 SPE water electrolysis system flow chart, the main components are in figure 1 The anode side radiator 16 is added on the basis of the above, and this embodiment is especially suitable for large-scale systems.

[0041] The anode-side radiator 16 is arranged on the pipeline between the anode-side water-gas outlet of the electrolytic cell stack 12 and the water-gas inlet of the anode-side gas-water separator 14 .

[0042] The invention has simple process and high system efficiency, and is suitable for various occasions where high-purity hydrogen and high-purity oxygen are required, especially the occasions where medium-high pressure high-purity hydrogen and high-purity oxygen are required, such as cooling medium for large-scale thermal power generation units, and silicon single products in the semiconductor industry Prepared protective gas, and high-efficiency energy storage, etc. The invention can be combined with the fuel cell to form a renewable fuel cell sy...

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Abstract

The invention relates to a medium-high pressure solid polymer electrolyte water electrolysis device. The system mainly comprises a core part of an electrolytic tank pile, and a water gas heat management system. A water supply and management process part comprises: a water tank, a circulating water pump, a high pressure water supplement pump, a two-position two-way solenoid valve, and a water purification device; a gas separation and management process part comprises: an anode-side gas-water separator, a cathode side gas-water separator, a check valve, a two-position two-way solenoid valve, a hydrogen storage tank, and an oxygen storage tank. The device of the invention is simple in flow and high in system efficiency, and is suitable for various conditions requiring high-purity hydrogen and high-purity oxygen, especially for conditions requiring medium-high pressure high-purity hydrogen and high-purity oxygen; for example, high-purity hydrogen can be used as a cooling medium of large-scale thermal generator sets, and protecting gas of silicon single product preparation in semiconductor industry, and can also be used for high-efficiency energy storage. The device of the invention can be combined with a fuel cell to form a regenerative fuel cell system widely applicable to energy storage and power utilization by UPS power supply, high-altitude places, space stations and the like.

Description

technical field [0001] The invention relates to solid polymer electrolyte water electrolysis, in particular to a medium-high voltage solid polymer electrolyte water electrolysis system and flow for anode water supply. Background technique [0002] The solid polymer electrolyte (SPE) water electrolysis cell has the advantages of high electrochemical efficiency, optimized environment, simple system maintenance, and long life due to the use of perfluorosulfonic acid membranes as electrolytes. SPE water electrolysis cell is an acidic electrolysis cell, its electrode reaction is as follows: [0003] 2H 2 O→4H ＋ +4e+O 2 (anode) [0004] 4H + +4e→2H 2 (cathode) [0005] Compared with the traditional alkaline water electrolysis technology, the advantages of SPE water electrolysis technology are mainly manifested in: (1) The solid polymer membrane is used as the electrolyte, and the membrane contains sulfonic acid groups, which have excellent ion conductivity after being wette...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/04C25B9/00
CPCY02E60/36Y02P20/10
Inventor 李晓锦邵志刚衣宝廉
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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