System for preventing freezing of fuel cell

A fuel electrode and electric energy technology, applied in fuel cells, fuel cell applications, fuel cell integration, etc., can solve problems such as pipeline freezing and system failure

Inactive Publication Date: 2007-02-28
LG ELECTRONICS INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in the fuel cell of the prior art described above, the reformer unit 10, the stack unit 20, the heat exchange unit 40, etc. are connected by pipes, the fuel and air flow in a wet state, and a large amount of water is stored in the water storage tank 41. water, so if the ambient temperature of the system is low, it is possible to freeze the pipes and cause the entire system to fail

Method used

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  • System for preventing freezing of fuel cell
  • System for preventing freezing of fuel cell
  • System for preventing freezing of fuel cell

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Embodiment Construction

[0018] Hereinafter, a system for preventing freezing of a fuel cell according to the present invention will be described with reference to one embodiment shown in the drawings.

[0019] FIG. 2 is a system diagram of one example of a fuel cell with an antifreeze system according to the present invention. 3 is an enlarged system diagram of a system for preventing freezing of a fuel cell according to the present invention.

[0020] As shown in the figure, the fuel cell according to the present invention includes: a reformer unit 10 for purifying hydrogen from LNG; a stack unit 20 provided with a fuel electrode 21 receiving purified hydrogen and an air electrode receiving oxygen from air 22, used to generate electricity and heat through the electrochemical reaction between hydrogen and oxygen; the power conversion unit 30, connected to the outside of the stack unit 20, used to supply electricity to the load; the heat exchange unit 40, used to supply the heavy The whole unit 10 an...

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Abstract

A system for preventing freezing of a fuel cell comprises: a stack unit for generating an electrical energy and a heat energy; a temperature sensing unit installed at the stack unit; a heater unit operated according to a value sensed by the temperature sensing unit; and a control unit electrically connected to the temperature sensing unit and the extinguishing unit. it is possible to avoid the main parts of the fuel cell from being frozen due to an external temperature change, so that the performance of the entire system can be prevented from deterioration or malfunctioning, thereby increasing the stability of the fuel cell.

Description

technical field [0001] The present invention relates to a fuel cell, and more particularly, to a system for preventing freezing of a fuel cell capable of preventing the fuel cell from freezing due to changes in ambient temperature. Background technique [0002] In general, a fuel cell is a device that converts fuel energy directly into electricity. This fuel cell is a fuel cell system in which an anode and a cathode are provided on both sides of a polymer electrolytic membrane, and the system uses hydrogen as a fuel by an electrochemical oxidation reaction at the anode (oxidation electrode or fuel electrode). The movement of electrons generated when the oxygen used as the oxidant undergoes an electrochemical reduction reaction at the cathode (reduction electrode or air electrode) generates electrical energy, and the fuel cell system can also be regarded as a power plant. [0003] According to the operating temperature and main fuel type, the above fuel cells are divided int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/00
CPCY02B90/14H01M8/04029Y02B90/16H01M8/04037H01M2250/405H01M8/04253Y02B90/18Y02E60/50H01M2250/10H01M8/0618Y02B90/10H01M8/04
Inventor 金起东金善会
Owner LG ELECTRONICS INC
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