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Air-cooled hydrogen fuel cell system and emission control method

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve problems such as inability to warn of abnormal conditions, inability to eliminate the risk of water accumulation in the flow field, and inability to adjust discharge strategies, etc. , to achieve the effect of eliminating the risk of water accumulation, optimizing the control strategy, and preventing the phenomenon of reverse polarity

Pending Publication Date: 2022-07-29
重庆交通大学绿色航空技术研究院
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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 an air-cooled hydrogen fuel cell system and a discharge control method for the above deficiencies. It is intended to solve the problem that the current discharge strategy cannot be adjusted according to the amount of water stored on the anode side, and the hydrogen concentration in the battery cannot be adjusted in time to prevent reverse polarity. Phenomena, the risk of water accumulation in the flow field cannot be ruled out, and problems such as timely alarm for abnormal conditions cannot be ruled out

Method used

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  • Air-cooled hydrogen fuel cell system and emission control method

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Embodiment 1

[0043] see attached figure 1 . An air-cooled hydrogen fuel cell system, comprising a hydrogen fuel cell 1, a first humidity sensor 2, a second humidity sensor 3, an exhaust fan 4, an intake solenoid valve 5, an exhaust solenoid valve 6, a current meter 7 and a controller 8 The hydrogen fuel cell 1 generates electricity through the electrochemical reaction between the hydrogen supplied to the anode side of the hydrogen fuel cell 1 and the oxygen in the air at the cathode side of the hydrogen fuel cell 1; the first humidity sensor 2 is used to obtain the information entering the hydrogen fuel cell 1. The absolute humidity of the air on the cathode side; the second humidity sensor 3 is used to obtain the absolute humidity of the air discharged from the cathode side of the hydrogen fuel cell 1; the exhaust fan 4 is used to provide air to flow on the cathode side of the hydrogen fuel cell 1 The power of the gas inlet solenoid valve 5 is used to control the entry of hydrogen into t...

Embodiment 2

[0045] see attached figure 1. An air-cooled hydrogen fuel cell system, comprising a hydrogen fuel cell 1, a first humidity sensor 2, a second humidity sensor 3, an exhaust fan 4, an intake solenoid valve 5, an exhaust solenoid valve 6, a current meter 7 and a controller 8 The hydrogen fuel cell 1 generates electricity through the electrochemical reaction between the hydrogen supplied to the anode side of the hydrogen fuel cell 1 and the oxygen in the air at the cathode side of the hydrogen fuel cell 1; the first humidity sensor 2 is used to obtain the information entering the hydrogen fuel cell 1. The absolute humidity of the air on the cathode side; the second humidity sensor 3 is used to obtain the absolute humidity of the air discharged from the cathode side of the hydrogen fuel cell 1; the exhaust fan 4 is used to provide air to flow on the cathode side of the hydrogen fuel cell 1 The power of the gas inlet solenoid valve 5 is used to control the entry of hydrogen into th...

Embodiment 3

[0051] see attached figure 1 . An air-cooled hydrogen fuel cell system, comprising a hydrogen fuel cell 1, a first humidity sensor 2, a second humidity sensor 3, an exhaust fan 4, an intake solenoid valve 5, an exhaust solenoid valve 6, a current meter 7 and a controller 8 The hydrogen fuel cell 1 generates electricity through the electrochemical reaction between the hydrogen supplied to the anode side of the hydrogen fuel cell 1 and the oxygen in the air at the cathode side of the hydrogen fuel cell 1; the first humidity sensor 2 is used to obtain the information entering the hydrogen fuel cell 1. The absolute humidity of the air on the cathode side; the second humidity sensor 3 is used to obtain the absolute humidity of the air discharged from the cathode side of the hydrogen fuel cell 1; the exhaust fan 4 is used to provide air to flow on the cathode side of the hydrogen fuel cell 1 The power of the gas inlet solenoid valve 5 is used to control the entry of hydrogen into t...

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Abstract

The invention discloses an air-cooled hydrogen fuel cell system and an emission control method, and belongs to the field of hydrogen fuel cells, the air-cooled hydrogen fuel cell system comprises a hydrogen fuel cell, a first humidity sensor, a second humidity sensor, an exhaust fan, an air inlet solenoid valve, an air outlet solenoid valve, a galvanometer and a controller; the controller is electrically connected with the first humidity sensor, the second humidity sensor, the exhaust fan, the air inlet electromagnetic valve, the air outlet electromagnetic valve and the galvanometer. The control strategy is optimized, the discharge strategy can be adjusted according to the condition of the anode side water storage, the hydrogen concentration in the battery can be controlled to prevent the reverse pole phenomenon, the water accumulation risk in the battery can be eliminated, and an alarm can be given in time for abnormal conditions.

Description

technical field [0001] The invention belongs to the field of hydrogen fuel cells, and in particular relates to an air-cooled hydrogen fuel cell system and an emission control method. Background technique [0002] Hydrogen fuel cell is a power generation device that can directly convert chemical energy stored in hydrogen and oxygen into electrical energy. The advantages of green environmental protection, low noise and low vibration, and high reliability have attracted the attention of the public. For small and medium-sized aircraft, in order to minimize the weight of the power system and reduce energy consumption, air-cooled hydrogen fuel cells without a hydrogen recovery device are generally used. When the air-cooled hydrogen fuel cell is working, the water that has reverse osmosis to the anode side needs to be discharged to avoid blocking the cell; it is also necessary to discharge the low-concentration hydrogen at the end of the flow field through the flow of hydrogen to ...

Claims

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Application Information

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IPC IPC(8): H01M8/04089H01M8/04014H01M8/04664H01M8/0662
CPCH01M8/04089H01M8/0662H01M8/04014H01M8/04679
Inventor 曹林李浩张治华范瑜居婷李瑞博赵凯
Owner 重庆交通大学绿色航空技术研究院
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