On-board hydrogen system for fuel cell automobile

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...

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 (application number 200710045766.1) has invented a hydrogen refueling substation that can recycle hydrogen on-board fuel cell vehicles, and can safely unload high-pressure hydrogen for fuel cell vehicles on site. None of them have considered the unloading function, so it is necessary to invent a fuel cell vehicle on-board hydrogen system that can be filled, unloaded, and supply hydrogen to the fuel cell

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