Fuel cell power-generating system
A fuel cell stack and power generation system technology, which is applied in the direction of fuel cells, fuel cell groups, fuel cell additives, etc., can solve problems such as power generation performance degradation, and achieve the effect of maintaining stable power generation performance
Active Publication Date: 2011-11-16
BYD CO LTD
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Problems solved by technology
[0009] The purpose of the present invention is to overcome the shortcomings of the existing fuel cell power generation system that the power generation performance is obviously reduced after multiple start-ups and shutdowns, and to provide a fuel cell power generation system with stable power generation performance
Method used
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Embodiment Construction
[0014] Such as figure 1 As shown, the fuel cell power generation system of the present invention includes a hydrogen production unit 1 and a fuel cell stack 2. The fuel cell stack 2 includes an anode chamber 21, a cathode chamber 23, and a membrane electrode 22 between the anode chamber and the cathode chamber. The hydrogen outlet of the hydrogen unit 1 communicates with the inlet of the anode chamber 21 of the fuel cell stack through pipelines, wherein the inlet pipeline 13 of the hydrogen production unit, the outlet pipeline 25 of the anode chamber of the fuel cell stack, and the cathode chamber of the fuel cell stack At least one of the pipelines 3 between the inlet pipeline 24 and the outlet pipeline 25 of the hydrogen production unit and the inlet of the anode chamber of the fuel cell stack includes a hydrophilic substance.
[0015] In order to fully reduce the impact of water vapor condensation on the power generation performance of the fuel cell power generation system,...
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Abstract
The invention relates to a power generation system of a fuel cell, which comprises a hydrogen making unit and a fuel cell pile, the fuel cell pile includes an anode cavity, a cathode cavity and a membrane electrode positioned between the anode cavity and the cathode cavity. A hydrogen outlet of the hydrogen making unit is communicated with an inlet of the anode cavity on the fuel cell pile. At least one pipe in an inlet pipe of the hydrogen making unit, an outlet pipe of the anode cavity on the fuel cell pile, an inlet pipe and an outlet pipe of the cathode cavity on the fuel cell pile, and apipe between the hydrogen outlet of the hydrogen making unit and the inlet of the anode cavity on the fuel cell pipe contains hydrophilic material. The hydrophilic material in the power generation system of the fuel cell can reduce the effect on a proton exchange membrane by condensed water; therefore, after a plurality of times of starting up and closing down, the power generation system of the fuel cell can keep stable performance of power generation.
Description
technical field [0001] The invention relates to a fuel cell power generation system. Background technique [0002] With the penetration of power facilities into every corner of people's daily life, people's requirements for power stability are getting higher and higher. Under the working mode of centralized grid power supply, when various natural and human reasons cause line faults, power supply will be stopped in large areas, and it will take a long time to troubleshoot and repair. Therefore, stable and clean distributed power generation is becoming more and more be valued. [0003] A fuel cell is an efficient and environmentally friendly power generation system. It utilizes redox reactions to directly convert the chemical energy contained in the fuel into electrical energy. The most widely used proton exchange membrane fuel cell is hydrogen as fuel. However, hydrogen mainly comes from the reforming of petrochemical fuels such as natural gas, methanol, and coal in large...
Claims
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IPC IPC(8): H01M8/06H01M8/24H01M8/10H01M4/90H01M8/02H01M8/00H01M8/04225H01M8/04228H01M8/04291H01M8/0606H01M8/1007H01M8/2457H01M8/2485
CPCY02E60/521Y02E60/50
Inventor 周良董俊卿
Owner BYD CO LTD