Integrated hydrogenation port

Abstract

The invention discloses an integrated hydrogenation port, and relates to the field of hydrogen supply systems. The integrated hydrogenation port comprises a hydrogenation port, a pressure relief valve, a temperature sensor and a low-pressure power supply, a pressure relief port is formed in the side wall of the hydrogenation port, one end of the pressure relief valve is inserted into the pressurerelief port, the pressure relief valve communicates with a first air channel in the hydrogenation port, a mounting port is formed in the side wall of the pressure relief valve, the temperature sensoris mounted in the mounting port, the lower end of the temperature sensor extends into a second air channel in the pressure relief valve, and the low-pressure power supply supplies power for the temperature sensor. According to the integrated hydrogenation port, the temperature in the hydrogenation port is collected by the temperature sensor, the active and passive double safety protection of the over-temperature problem of a gas resource is achieved under the environment of a 70 MPa ultra-high pressure hydrogen medium, when the overpressure filling of the ultra-high pressure hydrogen medium occurs, the pressure relief valve can immediate jump to discharge excess gases, and the occurrence of various overpressure accidents is avoided; and the potential safety problems of overpressure fillingand over temperature in the environment of the ultra-high pressure hydrogen medium are solved by the hydrogenation port.

Description

technical field [0001] The invention relates to the technical field of hydrogen supply systems, in particular to an integrated hydrogenation port. Background technique [0002] The hydrogen refueling port is used for hydrogen fuel cell vehicles. After the hydrogenation port is connected with the hydrogenation gun, the high-pressure hydrogen is introduced from the hydrogenation gun into the hydrogenation port, and then enters the hydrogen storage system. [0003] During the hydrogenation process, due to the coke soup effect, a large temperature rise will occur instantaneously when hydrogen is injected. Therefore, when 70MPa hydrogen (ultra-high pressure hydrogen medium) is injected, the gas source needs to be pre-cooled at -40°C. Hydrogen is flammable and explosive, and has a wide range of explosion limits. However, ultra-high pressure 70MPa hydrogen changes from extremely cold to extremely hot in a very short period of time, which poses a great test to the sealing performan...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide an integrated hydrogen refueling port, which solves the technical problem that the fuel cell vehicle’s gas cylinder and pipeline system will be filled with overpressure due to the failure of the hydrogen refueling machine control, and Technical problems of overheating in the hydrogenation port

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