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Exhaust mixing device for hydrogen fuel cell automobile

A fuel cell and automobile exhaust technology, applied in fuel cells, mixers, electrical components, etc., can solve the problem of hydrogen concentration exceeding, and achieve the effect of reducing hydrogen concentration, obvious swirl effect, and small space occupation

Active Publication Date: 2019-07-19
WUXI WEIFU LIDA CATALYTIC CONVERTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hydrogen fuel cell vehicle exhaust mixing device, which can solve the problem that the hydrogen concentration exceeds the deflagration threshold, and selects lightweight plastic materials to reduce the cost of the exhaust device

Method used

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  • Exhaust mixing device for hydrogen fuel cell automobile
  • Exhaust mixing device for hydrogen fuel cell automobile
  • Exhaust mixing device for hydrogen fuel cell automobile

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Embodiment Construction

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] figure 1 , including connecting pipe 1, hydrogen mixer 2, outer cylinder 2-1, front end cover 2-2, front swirl vane 2-3, front fixing ring 2-4, air flow groove 2-4-1, shunt pipe 2-5, diverter hole 2-5-1, rear swirl blade 2-6, rear fixing ring 2-7, rear end cover 2-8, exhaust tailpipe 3, etc.

[0025] Such as figure 1 As shown, the present invention is a hydrogen fuel cell vehicle exhaust mixing device consisting of a connecting pipe 1, a hydrogen mixer 2, an exhaust tailpipe 3 and other parts. One end of the connecting pipe 1 is directly connected to the exhaust end of the hydrogen fuel cell, and the other end of the connecting pipe 1 is connected to the left end of the hydrogen mixer 2. The main function of the hydrogen mixer 2 is to mix hydrogen and water vapor, reduce the average concentration of hydrogen in the exhaust gas, and ...

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Abstract

The invention relates to an exhaust mixing device for hydrogen fuel cell automobile. The exhaust mixing device comprises a connecting pipe, one end of the connecting pipe is connected with one end ofa hydrogen mixer, and the other end of the hydrogen mixer is connected with an exhaust tail pipe; the hydrogen mixer comprises an outer cylinder body; a shunting pipe is arranged in the middle of theouter cylinder body, a front fixing ring is arranged in one end of the shunting pipe, a rear fixing ring is arranged in the other end of the shunting pipe, front swirl blades are arranged in the frontfixing ring, rear swirl blades are arranged in the rear fixing ring, one end of the outer cylinder body and one end of the front fixing ring are connected with a front end cover, and the other end ofthe outer cylinder body and the other end of the rear fixing ring are connected with a rear end cover. The hydrogen mixer is additionally arranged, and hydrogen and water vapor can be uniformly mixedwhen waste gas is exhausted, so that the overall hydrogen concentration is reduced; the hydrogen mixer adopts a double-swirl blade structure, so that the mixing capacity is stronger, and the generated swirl effect is more obvious; and a light plastic material can be selected to reduce the cost of the exhaust mixing device.

Description

technical field [0001] The invention belongs to the technical field of hydrogen fuel vehicle exhaust equipment, and relates to a hydrogen fuel cell vehicle exhaust mixing device. Background technique [0002] The main substance emitted by hydrogen fuel cell vehicles is water vapor (H2O), which is basically close to zero emission of pollutants. However, under the current technical conditions, hydrogen fuel cells still have some incompletely utilized hydrogen gas discharged along with the exhaust gas during the start-up and flame-out stages. The low density of hydrogen makes it easy for hydrogen to accumulate above the exhaust pipe, so that the concentration of hydrogen in the local area increases sharply and there is a risk of deflagration. Therefore, hydrogen fuel vehicles must control the concentration of hydrogen in the exhaust gas, including the overall concentration and local area concentration below the allowable deflagration threshold, so as to reduce the risk of defl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/06H01M8/0662
CPCH01M8/0662B01F25/4233B01F25/4231B01F25/431B01F25/4314B01F25/4319Y02E60/50
Inventor 陈增响马相雪王家明何伟娇王淑丽何龙付细平
Owner WUXI WEIFU LIDA CATALYTIC CONVERTER
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