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Membrane humidifier for fuel cells

A fuel cell and membrane humidification technology, applied in the direction of fuel cell additives, etc., can solve the problems of large volume, poor pressure resistance and high price of membrane humidifiers, and achieve light weight, high water vapor diffusion flux, and cost. low effect

Inactive Publication Date: 2013-04-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used membranes are mainly organic membranes, which are expensive, easily deformed, and have poor pressure resistance. After a long period of use, the membrane is easily damaged, resulting in the communication of intake and exhaust.
Moreover, for vehicle-mounted high-power fuel cells, the required membrane humidifiers are generally bulky, and the membrane humidifiers that usually use organic membranes are relatively heavy, which limits their application, especially in Vehicle-mounted high-power fuel cells, which are sensitive to weight

Method used

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  • Membrane humidifier for fuel cells
  • Membrane humidifier for fuel cells
  • Membrane humidifier for fuel cells

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Embodiment Construction

[0028]The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0029] figure 1 and figure 2 A schematic structural view and a cross-sectional view of the membrane humidifier used in the fuel cell according to the present invention are given respectively. like figure 1 As shown, the membrane humidifier for fuel cells of the present invention includes: a cylindrical casing 1 , a humidifying tube 2 accommodated inside the cylindrical casing 1 , a first baffle 3 , and a second baffle 4 . The membrane humidifier used in the fuel cell of the present invention has a shell-and-tube structure, including a tube side and a shell side. Th...

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Abstract

The invention discloses a membrane humidifier for fuel cells, which comprises a cylindrical shell, humidification tubes, a first baffle and a second baffle plate, wherein each humidification tube adopts a two-layer structure; the outer layer of the humidification tube is an aramid paper tube; the inner layer of the humidification tube is a stainless-steel screen stencil; and the two ends of the humidification tube are respectively fixed on the first baffle and the second baffle plate and are sealed in the cylindrical shell, so as to form a tube side and a shell side. The invention further discloses a fuel cell device comprising the membrane humidifier. According to the membrane humidifier for fuel cells, two different gases are conveyed to the tube side and the shell side, and humidity exchange and temperature exchange are carried out through the tube walls of the humidification tubes, so that inlet air of the fuel cells can be humidified and heated effectively and the performance of the fuel cells can be played better; and the membrane humidifier is simple in preparation technology, excellent in performance, lower in cost and long in service life.

Description

technical field [0001] The invention relates to a humidifier for a fuel cell, in particular to a membrane humidifier for a fuel cell made of aramid paper. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy stored in fuel (such as hydrogen) and oxidant (such as oxygen) into electrical energy through an electrochemical reaction. It has high efficiency, environmental friendliness, good maintainability, and easy use , fuel diversification, fast response, wide power range, modular power generation unit, excellent performance at partial load, etc., are very suitable for use as mobile and decentralized power sources. As a kind of fuel cell, proton exchange membrane fuel cell also has the advantages of quick start, long life, high specific energy, low operating temperature, fast response, no corrosion of electrolyte, no leakage, etc., with broad application prospects and great market potential. Industrial structure upgradin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04
CPCY02E60/50
Inventor 隋升苏凯华王曙中章俊良蒋峰景
Owner SHANGHAI JIAO TONG UNIV
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