On-board hydrogen system for fuel cell automobile

A fuel cell and hydrogen system technology, applied in the field of vehicle-mounted hydrogen system, can solve the problems of not considering the unloading function, not considering the utilization, not environmental protection, etc., achieving the effect of complete functions, in place security measures, and simple structure

Inactive Publication Date: 2009-04-29
TONGJI UNIV
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since fuel cell vehicles will inevitably encounter various faults during operation, for the elimination of some faults, it is necessary to discharge the high-pressure hydrogen in the vehicle-mounted hydrogen storage tank for safety reasons, and the current method is to directly vent the gas , without considering utilization, which is neither environmentally friendly nor wasteful
Chinese patent (a...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-board hydrogen system for fuel cell automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 Air-receiving operation: The air-receiving operation is usually carried out when the fuel cell vehicle is turned off. Make sure needle valves 3 and 4 are fully open. Connect the vehicle communication interface to the refueling machine on the hydrogen refueling station. Insert the hydrogenation nozzle of the hydrogenation station into the gas receiver to ensure a good connection. Turn on the switches of the hydrogenation gun and gas dispenser in sequence, and the high-pressure hydrogen from the hydrogenation station will pass through the gas receiving head 19, the filter 18, the check valve 8, and the needle valves 3 and 4, and then enter the on-board hydrogen storage bottles 1 and 2. During the injection process, the temperature and pressure changes in the hydrogen storage bottle are transmitted to the hydrogenation machine through the communication interface in real time by the pressure sensor 10 and the temperature sensor 12, 13, so that the gas filling ...

Embodiment 2

[0019] Embodiment 2 Unloading operation: When the fuel cell vehicle is in the "flame off" state, connect the quick connector 20 to the external unloading system, open the needle valve 6 to the fully open state, adjust the pressure regulating valve 22 to the maximum, and the hydrogen storage bottle in the vehicle The hydrogen will enter the external unloading system through the needle valves 3, 4, 6, the pressure regulating valve 22, the one-way valve 9 and the quick connector 20 in sequence. When the hydrogen pressure in the on-board hydrogen bottle is higher than the hydrogen pressure in the storage tank of the external unloading system, the pressure difference between the two will be used to directly unload the hydrogen into the storage tank; when the hydrogen pressure in the on-board hydrogen bottle is lower than the external When the hydrogen pressure in the storage tank of the unloading system is used, the gas booster in the external unloading system will be used to pressu...

Embodiment 3

[0020] Embodiment 3 Hydrogen supply operation: After the fuel cell vehicle enters the "ignition" state, the power is turned on, the solenoid valve is automatically opened, the needle valve 5 is in the normally open state, and the hydrogen output pressure of the pressure regulating and stabilizing valve is preset. The value is transmitted to the vehicle controller by the pressure sensor 11 on board the valve. In some specific cases, such as the initial commissioning of the hydrogen system, the needle valve 7 can be opened to vent the purge gas upstream of the pressure regulating and stabilizing valve through the purge bypass, which can ensure the purity of the hydrogen that subsequently enters the fuel cell engine. After the electromagnetic valve 15 is opened, the high-pressure hydrogen in the vehicle-mounted hydrogen bottle passes through the overflow valve 16, the needle valve 5, and the electromagnetic valve 15 successively, and then flows into the pressure regulating and sta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fuel cell vehicle carriage hydrogen system; the system comprises a high-pressure hydrogen storage bottle group system, a bullied pipeline, an unloading pipeline, a hydrogen supply pipeline and a blowdown pipeline; the bullied pipeline, the unloading pipeline, and the hydrogen supply pipeline are connected to the high-pressure hydrogen storage bottle group system side by side; the blowdown pipeline is connected at the tail end for safe unloading; and the system can be applied to a hydrogen carriage hydrogen system of a fuel cell vehicle, which can receive the high-pressure hydrogen of a hydrogen filling station, can safely unload and use the carriage high-pressure hydrogen, and can provide steady pressure and flow for a fuel cell engine. The fuel cell vehicle carriage hydrogen system has the advantages of complete function, simple structure, in-place security protection measure, and high safety and reliability. When having the bullied, unloading, and hydrogen supply functions, the system also has the over-temperature, overpressure, overflow, and return protection functions.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a fuel cell vehicle that can accept high-pressure hydrogen from hydrogen refueling stations, safely unload and utilize vehicle-mounted high-pressure hydrogen, and provide stable pressure and flow for fuel cell engines. Hydrogen on-board hydrogen system. Background technique [0002] Fuel cell vehicles use hydrogen as fuel. Through fuel cell engines, chemical energy is efficiently converted into electrical energy to drive the vehicle. The whole process only discharges pure water. Therefore, it is the most ideal energy-saving and environment-friendly zero for replacing traditional fossil fuel vehicles in the near future. Emissions vehicles. [0003] After nearly 20 years of joint efforts by scientists, automobile manufacturers, energy companies and governments around the world, the technology of fuel cell vehicles has developed by leaps and bounds, and its performance indicators...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60K3/00F17C7/00F17C13/02F17C13/04B60K15/00
CPCY02E60/321Y02E60/32
Inventor 马建新周伟张存满潘相敏邬敏忠陈华强
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap