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System for reducing hydrogen emission of hydrogen-fueled cell car in closed space and control method thereof

A fuel cell vehicle, confined space technology, applied in battery/fuel cell control devices, fuel cells, electric vehicles, etc., can solve problems such as explosions, and achieve the effect of improving safety

Active Publication Date: 2019-06-07
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In an open place, due to the minimum density of hydrogen, the exhausted hydrogen can quickly diffuse out and be diluted by the outside air. However, for a closed garage or underground parking lot, the exhausted hydrogen is easy to accumulate on the roof. The explosion limit of hydrogen 4% to 76%, once exposed to open flame or static electricity, it will burn or even explode

Method used

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  • System for reducing hydrogen emission of hydrogen-fueled cell car in closed space and control method thereof
  • System for reducing hydrogen emission of hydrogen-fueled cell car in closed space and control method thereof

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Embodiment

[0027] A system for reducing hydrogen emissions from hydrogen fuel cell vehicles in confined spaces, mainly including: fuel cell stack 1, hydrogen storage tank 2, solid hydrogen storage unit 3, hydrogen circulation pump 4, water vapor separator 5, solenoid valve Ⅰ 6, solenoid valve Ⅱ7, solenoid valve Ⅲ19, angle valve 8, pressure reducing valve 9, one-way valve Ⅰ10, one-way valve Ⅱ11, on-board computer 16, diaphragm pump 17 and distance sensor 18,

[0028] The fuel cell stack 1 is respectively provided with a hydrogen gas inlet 12, a hydrogen gas outlet 13, an air inlet 14 and an air gas outlet 15, and the hydrogen storage tank 2 is sequentially connected to an angle valve 8, a pressure reducing valve 9, and a one-way valve through pipelines. Valve Ⅰ10 and hydrogen gas inlet 12, check valve Ⅰ10 only allows the flow of hydrogen gas in the direction of inlet, hydrogen gas outlet 13 is connected to water vapor separator 5, check valve Ⅱ11, solenoid valve Ⅱ7, diaphragm pump 17, soli...

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Abstract

The present invention discloses a system for reducing hydrogen emission of a hydrogen-fueled cell car in a closed space and a control method thereof. Aiming at the potential safety hazard caused by hydrogen emission of a fuel cell in a closed space, storage and power supply devices of hydrogen are improved, a distance measurement sensor is used to detect whether the vehicle is in a closed space ornot, when the vehicle is in the closed space and needs to discharge residual hydrogen, the hydrogen is controlled to be discharged in a solid hydrogen storage unit, and when the vehicle is in an openspace, the hydrogen stored in the solid hydrogen storage unit is discharged to ensure the safety of the fuel-cell vehicle in the closed space.

Description

technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to a system for reducing the emission of hydrogen by a hydrogen fuel cell vehicle in a closed space. Background technique [0002] A fuel cell is a power generation device that directly converts the chemical energy in fuel into electrical energy through an electrochemical reaction. Among them, the proton exchange membrane fuel cell has low operating temperature and fast start-up speed, and is the first choice for vehicle fuel cells. The fuel cell works in a similar way to the internal combustion engine, and its fuel is carried outside the battery. The hydrogen used in the fuel cell can be filled as fast as traditional gasoline, and it only takes a few minutes, showing a greater advantage than pure electric vehicles. Fuel cell vehicles have certain similarities with traditional vehicles in terms of hydrogen refueling and driving range. [0003] In order to ensure the stable op...

Claims

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Application Information

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IPC IPC(8): H01M8/0662H01M8/04955B60L58/30
CPCY02E60/50Y02T90/40
Inventor 韩建崔龙米新艳张克金崔新然张苡铭苏中辉
Owner FAW JIEFANG AUTOMOTIVE CO
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