Cooling and filling method for hydrogen fuel used for vehicle

Abstract

The invention discloses a cooling and filling method for a hydrogen fuel used for a vehicle, and belongs to the technical field of gas fuel filling. The method is characterized by comprising the following steps of: (1) compressing and heating hydrogen from a hydrogen source by using a hydrogen compressor; (2) exchanging heat with a cooling pipeline through a heat exchange pipeline in a cooling heat exchange device to cool the compressed hydrogen in the heat exchange pipeline; and (3) connecting a filling gun of a filling and metering device with an on-vehicle hydrogen cylinder, and filling the compressed and cooled hydrogen into the on-vehicle hydrogen cylinder to finish filling. The method has the advantages that: not only the temperature of a gas cylinder can be controlled in a safety loading condition, but also the requirement on rapid filing of the vehicle can be met to ensure the safety of a filling process of the vehicle. The hydrogen filling time is short; and the safety and stability effects are very good. The method is not only suitable for the hydrogen filling of an on-vehicle gas cylinder under the pressure of 35 MPa, but also suitable for the hydrogen filling of the on-vehicle gas cylinder under the pressure of 70 MPa.

Description

technical field [0001] The invention belongs to the technical field of vehicle gas fuel filling, and relates to a vehicle hydrogen fuel filling method, in particular to a vehicle hydrogen fuel cooling filling method with fast filling speed and high use safety. Background technique [0002] Due to its advantages of high energy utilization efficiency and zero pollutant emission, fuel cell vehicles are the most ideal and most likely upgrade and replacement products for traditional energy vehicles in the 21st century. Hydrogen refueling station is an important supporting infrastructure for fuel cell vehicles, and the establishment of hydrogen refueling stations will greatly promote the promotion and use of fuel cell vehicles. [0003] Hydrogen refueling stations can be divided into two types: gas hydrogen refueling stations and liquid hydrogen refueling stations. The construction scale of the liquid hydrogen refueling station is large, and the volatilization and penetration of ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cooling and filling method of hydrogen fuel for vehicles with fast filling speed and high safety, which overcomes the prior art and directly fills the hydrogen into the vehicle-mounted gas cylinder after being pressurized by a compressor Insufficiencies of high temperature, reduced safety and long filling time caused by the fast filling process caused by the filling method

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