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Title:
FUEL CELL TAIL EXHAUST HYDROGEN CONCENTRATION DETECTION AND MIXING DILUTION DEVICE AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2021/143149
Kind Code:
A1
Abstract:
Disclosed in the present utility model are a fuel cell tail exhaust hydrogen concentration detection and mixing dilution device and a fuel cell. The device comprises a hydrogen concentration detection unit and a gas mixing injection dilution unit, wherein the hydrogen concentration detection unit comprises a tail exhaust main pipeline, a sampling branch pipeline, a gas-liquid separator and a hydrogen concentration sensor, the gas mixing injection dilution unit comprises an injection three-way pipe and a diluted gas introduction pipeline, a main inlet of the injection three-way pipe is connected to an upstream section of the tail exhaust main pipeline, a branch inlet of the injection three-way pipe is connected to one end of the diluted gas introduction pipeline, an outlet of the injection three-way pipe is connected to a downstream section of the tail exhaust main pipeline, an injection nozzle is arranged at the joint between the main inlet and the branch inlet, negative pressure is formed at the branch inlet under the action of the injection nozzle, external cold air enters the tail exhaust main pipeline by means of the diluted gas introduction pipeline to achieve a dilution effect, and the device is simple in structure, low in cost and high in reliability.

Inventors:
LIANG WEIDONG (CN)
DENG JIA (CN)
LI YONG (CN)
YI YONG (CN)
KONG QINGJUN (CN)
Application Number:
PCT/CN2020/112382
Publication Date:
July 22, 2021
Filing Date:
August 31, 2020
Export Citation:
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Assignee:
ZHONGSHAN BROAD OCEAN MOTOR CO (CN)
International Classes:
H01M8/04791; H01M8/0444
Foreign References:
CN109768307A2019-05-17
JP2004311242A2004-11-04
CN103380526A2013-10-30
CN209418665U2019-09-20
CN108493467A2018-09-04
US20040106023A12004-06-03
Attorney, Agent or Firm:
ZHONGSHAN HANTONG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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