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Fuel cell with function of preventing back-fire

A technology of fuel cells and fuel cell stacks, which is applied in the direction of fuel cells, circuits, electrical components, etc., and can solve problems such as tempering and fuel explosion of hydrogen storage bottles

Active Publication Date: 2008-06-04
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the hydrogen in the pipeline is mixed with air, it may flash back when it encounters an open flame, which may cause the fuel explosion of the entire hydrogen storage bottle, so the problem of flashback prevention must be considered

Method used

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  • Fuel cell with function of preventing back-fire
  • Fuel cell with function of preventing back-fire
  • Fuel cell with function of preventing back-fire

Examples

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Embodiment

[0029] like image 3 As shown, a fuel cell with anti-backfire function includes a fuel cell stack 1, a hydrogen storage device 2, a hydrogen pressure reducing valve 3, an air filter device 4, an air compression supply device 5, and a hydrogen water-steam separation stack Device 6, stack air water-steam separator 6', water tank 7, cooling fluid circulation pump 8, radiator 9, hydrogen circulation pump 10, hydrogen humidification device 11, air humidification device 12, humidification hydrogen water- Steam separator 13, the described humidification hydrogen water-steam separator comprises stainless steel housing 131, is provided with three permeable (hydrogen) gas impermeable porous stainless steel tubes 132 and a stainless steel separator 133 in this housing 131 , the housing 131 is cylindrical.

[0030] The humidified hydrogen water-steam separator 13 is vertically arranged, and the partition plate 133 is arranged on the middle and upper part of the inner cavity of the separa...

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Abstract

The fuel battery includes fuel cell pile, hydrogen storage, device for humidifying hydrogen, air filtering device, unit for humidifying air, coolant circulating pump, hydrogen circulating pump, radiator, and water-vapor separator for humidified hydrogen etc. the said separator includes body case. At least one piece of porous metal tube and a baffle plate are setup inside the body case. One end of the separator for humidified hydrogen is connected to the inlet of the device for humidifying hydrogen; and the other end is connected to hydrogen inlet end of fuel cell pile. Comparing with prior art, besides separating water and vapor from humidified hydrogen, the separator also provides function for preventing backfire from pipe of hydrogen.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a fuel cell with the function of preventing flashback. Background technique [0002] An electrochemical fuel cell is a device that converts hydrogen and oxidants into electrical energy and reaction products. The internal core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) is composed of a proton exchange membrane and two porous conductive materials, such as carbon paper, sandwiched between the two sides of the membrane. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit to form a current loop. [0003] At the anode ...

Claims

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Application Information

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IPC IPC(8): H01M8/00H01M8/04119
CPCY02E60/50
Inventor 夏建伟胡里清
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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