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Air filter for fuel cell

An air filter and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, electrical components, etc., can solve the problems of not considering the removal of harmful gases, not considering the volume factor of the air intake resistance purifier, etc., and achieve the improvement effect Effect

Active Publication Date: 2009-05-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air purifier in this patent does not consider the use of specific materials to remove different harmful gases in the air, and does not consider the air intake resistance and the volume of the purifier itself

Method used

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  • Air filter for fuel cell
  • Air filter for fuel cell
  • Air filter for fuel cell

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0041] The air filter of the present invention is mainly composed of two parts: one part is used to remove particle pollutants in the air, and the other part is used to remove harmful gas pollutants in the air. Specifically include: filter housing, physical filter element, metal filter screen, integral chemical filter element and high-efficiency dust filtration. Wherein, the filter shell can be made of metal such as plastic, aluminum or stainless steel. The chemical filter element used to remove harmful gases in the air is supported by a metal filter. The integral adsorbent can be made of porous, large-scale activated carbon, activated carbon fiber, activated alumina, molecular sieve, aerogel, ion exchange resin, ion exchange fiber One or more than one of the specific surface area materials. Taking granular activated carbon as an example, aft...

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Abstract

The invention discloses an air filter which can be used in fuel cells. The filter comprises a filter shell, a physical filter element and a chemical filter element; the physical filter element is arranged at the position of an air inlet and positioned at the front end of the chemical filter element, the physical filter element is connected with the chemical filter element by a sealing baffle, and the center thereof is provided with a common airflow passage. The filter element of the air filter consists of two parts, one part is used for physically filtering particulate pollutants in the air and the other part is used for chemically filtering harmful chemical gas (NOx, SO2, NH3, CmHn and the like) in the air. The physical filter part takes paper material or non-woven fabrics as a filter element material and the chemical filter part takes a chemical adsorbent as the filter element material. The chemical filter part consists of multilayered structures which respectively adsorb different chemical pollutants, and the chemical filter part is a hollow cone with a specific angle. The structure has the main advantages of sufficient air intake, small intake resistance, even flow speed distribution of the gas in the filter and high filter efficiency.

Description

technical field [0001] The invention relates to a filter, in particular to an air filter which can be used for a vehicle fuel cell engine. Background technique [0002] A fuel cell is an efficient and environmentally friendly power generation device that directly converts chemical energy stored in fuel and oxidant into electricity. Due to the problems of energy shortage and environmental pollution, the research and engineering development of fuel cells has been paid more and more attention by governments and scientific and technical personnel of various countries. Fuel cells have great application potential in portable power sources, household power sources, decentralized power stations and transportation. [0003] Currently, most fuel cells use air as the oxidant. However, studies have shown that particulate matter in the air and impurity gases (such as NO x , SO 2 , NH 3 and C m h n etc.) will reduce the performance of the fuel cell and affect the life of the fuel c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/52B01D53/04B01D53/74B01D53/82H01M8/04H01M8/04223
CPCY02E60/50
Inventor 马建新吕洪杨代军潘相敏周伟张存满陈专刘湃
Owner TONGJI UNIV
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