Cooling circulation process for fuel cell

A fuel cell and cooling cycle technology, which is applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems that are not ideal, and the energy conversion efficiency of the cooling cycle cannot be selected in stages, so as to achieve high energy conversion efficiency Effect

Inactive Publication Date: 2017-05-24
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the present invention aims at the technical defect that the fuel cell module of the prior art cannot be selected according to the temperature classification of the outlet coolant of the fuel cell, and the energy conversion efficiency of the cooling cycle loop is not ideal, thereby providing a cooling cycle for the fuel cell craft

Method used

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  • Cooling circulation process for fuel cell

Examples

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Effect test

Embodiment 1

[0056] Example 1 The stationary proton exchange membrane fuel cell adopting the cooling circulation process of the present invention

[0057] This embodiment uses a 10kW water-cooled proton exchange membrane fuel cell stack with 120 single cells.

[0058] In this embodiment, the fuel cell low temperature alarm temperature point and the fuel cell high temperature alarm temperature point are 50° C. and 65° C. respectively.

[0059] First, the gas line is purged with nitrogen. Then supply hydrogen and air to the poles of the fuel cell respectively, and start the fuel cell and its auxiliary machines (including the circulation pump). Next, the temperature T1 of the water outlet of the fuel cell, the temperature T2 of the heat exchange circulating water, and the temperature T3 of the water inlet of the fuel cell are detected. When the temperature T1 is lower than 50° C., the second circulation pump is started, and the first circulation pump and the fan of the radiator are not star...

Embodiment 2

[0060] Example 2 Direct Methanol Fuel Cell Using the Cooling Circulation Process of the Present Invention

[0061] This embodiment uses a 5kW water-cooled direct methanol fuel cell stack with 60 single cells.

[0062] First, the gas line is purged with nitrogen. Then supply methanol and air to the two poles of the fuel cell, and start the fuel cell and its auxiliary machines (including the circulation pump). Next, the temperature T1 of the water outlet of the fuel cell, the temperature T2 of the heat exchange circulating water, and the temperature T3 of the water inlet of the fuel cell are detected. When the temperature T1 is lower than 120° C., the second circulation pump and the ion column are started, and the first circulation pump and the fan of the radiator are not started. When the temperature T1 is higher than 120° C. and lower than 135° C., the first circulation pump is activated, but the radiator is not activated. As the temperature T1 gradually increases, the speed...

Embodiment 3

[0063] Example 3 High temperature solid oxide fuel cell using the cooling cycle process of the present invention

[0064] This embodiment uses a 30kW high temperature solid oxide fuel cell stack with 350 single cells.

[0065] First, the gas line is purged with nitrogen. Then supply hydrogen and air to the poles of the fuel cell respectively, and start the fuel cell and its auxiliary machines (including the circulation pump). Next, the temperature T1 of the water outlet of the fuel cell, the temperature T2 of the heat exchange circulating water, and the temperature T3 of the water inlet of the fuel cell are detected. When the temperature T1 is lower than 800° C., the second circulation pump is started, and the first circulation pump and the fan of the radiator are not started. When the temperature T1 is higher than 800° C. and lower than 830° C., the first circulation pump is activated, but the radiator is not activated. As the temperature T1 gradually increases, the speed o...

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Abstract

The invention discloses a cooling circulation process for a fuel cell, and belongs to the technical field of engineering designs of fuel cells. In the cooling circulation process for the fuel cell, a first circulation loop and a second circulation loop which are arranged in parallel are used; a heat source liquid cooling device is arranged on the first circulation loop; a heat exchange device is arranged on the second circulation loop. By adopting the cooling circulation process for a fuel cell, the heat energy recycling of the fuel cell is facilitated, and high energy transformation efficiency is achieved.

Description

technical field [0001] The invention belongs to the technical field of fuel cell engineering design, and in particular relates to a cooling cycle process for fuel cells. Background technique [0002] With the further development of industrial society, environmental problems have become increasingly prominent, and environmentally friendly hydrogen energy storage technology has received more and more attention. Hydrogen energy storage technology includes the production, storage, transportation and use of hydrogen. The most critical link in its industrial chain is fuel cell technology. Fuel cell technology has entered the initial stage of industrialization under the research of scientific and technical personnel all over the world. [0003] The traditional fuel cell module only includes the fuel cell stack, the cooling medium transmission unit, the hydrogen transmission unit, the air transmission unit, and the fuel cell power control unit. The conversion efficiency is low. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04029
CPCH01M8/04007H01M8/04029H01M8/04074Y02E60/50
Inventor 牛萌刘锋肖宇赵鹏程杜兆龙
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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