Hydrogen filling device with air leakage detection function

Abstract

The invention provides a hydrogen filling device with an air leakage detection function. The hydrogen filling device with the gas leakage detection function comprises a hydrogenation connector and a gas receiving connector, the hydrogenation connector comprises a hydrogenation pipe, the gas receiving connector comprises a hydrogen receiving pipe, the hydrogenation pipe is connected with a hydrogenation machine, the hydrogen receiving pipe communicates with a hydrogen storage tank of a hydrogen energy automobile, and the hydrogenation connector is used for being connected with the gas receivingconnector in an airtight mode. Therefore, the hydrogen storage tank of the hydrogen energy automobile is aerated by the hydrogenation machine. The hydrogen filling device with the gas leakage detection function has the beneficial effects that sliding sleeves, a first elastic piece and an annular clamping block are arranged in the hydrogenation pipe of the hydrogenation connector, the first elastic piece can push the sliding sleeves to clamp a clamping block on the hydrogen receiving pipe between the sliding sleeves, and the hydrogen receiving pipe is prevented from falling off from the hydrogenation connector; one end parts of the sliding sleeves are horn-shaped, the end part of the hydrogen receiving pipe is conical, the hydrogen receiving pipe can be embedded into the end parts of the sliding sleeves, so that the sliding sleeves are in airtight connection with the hydrogen receiving pipe, and hydrogen leakage is prevented; and a sealing sleeve is further arranged on the hydrogenation pipe of the hydrogenation connector and can play a role in secondary sealing and alarming on the hydrogenation connector and the gas receiving connector.

Description

technical field [0001] The invention relates to the field of hydrogen filling devices, in particular to a hydrogen filling device with a leak detection function. Background technique [0002] Hydrogen vehicles need to use a hydrogen filling device in the process of filling hydrogen. The hydrogen filling device usually includes two connection joints. The two connection joints are respectively set on the hydrogenation machine and the hydrogen vehicle. After the two connecting joints are airtightly connected, the gas dispenser will fill the hydrogen storage system of the fuel cell of the hydrogen energy vehicle with hydrogen. Since the hydrogen gas is in a compressed state during the hydrogen filling process, the two connection joints of the hydrogen filling device need to ensure the airtightness of the connection between the two. Therefore, the connection joints of the existing hydrogen filling devices mostly adopt the method of threaded connection. , this will cause the prob...

AI Technical Summary

Problems solved by technology

Since the hydrogen gas is in a compressed state during the hydrogen filling process, the two connecting joints of the hydrogen filling device need to ensure the airtightness of the two connections. Therefore, the connecting joints of the existing hydrogen filling devices mostly adopt the method of threaded connection. , this will cause the problem of difficulty in connecting the joints during the hydrogen filling process, and the existing hydrogen filling device cannot detect the hydrogen leakage during the intake filling, and cannot find the leakage in the hydrogen filling process in time Phenomenon, when the gas leakage between the connectors cannot be found in time, it will cause the problem of hydrogen leakage and waste, and may even lead to an explosion

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