Novel hydrogenation gun sealed by spring seal

Abstract

The invention provides a novel hydrogenation gun sealed by a spring seal. The novel hydrogenation gun comprises a gun body, a gun seat and a grip, wherein a hydrogenation mechanism and a pressure relief mechanism are arranged in the gun body; a double mechanical locking mechanism is also arranged in the gun body; a sealing structure is arranged on the hydrogenation mechanism; the sealing structure comprises a first rubber structural member and a second rubber structural member; the first rubber structural member is of a U-shaped structure; the second rubber structural member is arranged in the U-shaped structure; and the second rubber structural member is connected with the U-shaped structure in an interference fit manner. According to the novel hydrogenation gun sealed by the spring seal, good sealing performance is kept in all working intervals from zero pressure to ultrahigh pressure; and a component made of a rubber material is adopted to replace a metal spring to serve as a providing piece for intermediate tension, so that the novel hydrogenation gun still has good working performance and long service life in a working environment in which the novel hydrogenation gun is in contact with high-purity hydrogen for a long time at low temperature and under high pressure while good sealing performance is kept in the whole working pressure intervals from zero pressure to ultrahigh pressure.

Description

technical field [0001] The invention relates to the technical field of new energy hydrogen fuel cell vehicles, in particular to a novel pan-sealed hydrogenation gun. Background technique [0002] The new energy industry is the development trend of today's society. With the increasingly prominent energy issues and the strong support of the government, the hydrogen energy technology industry has developed rapidly, which has led to key technological breakthroughs in hydrogen fuel cell power systems and complete vehicles. Hydrogen fuel cell Vehicles are gradually entering the market, especially in developed cities, more and more citizens accept and use hydrogen fuel cell vehicles. [0003] The hydrogenation gun is the core equipment that injects the produced hydrogen into the last important link of the hydrogen fuel cell vehicle. In order to realize the rapid and safe addition of hydrogen to hydrogen-fueled vehicles, the hydrogen filling pressure standard has gradually increase...

AI Technical Summary

Problems solved by technology

During the hydrogenation process, there is relative movement between the hydrogenation port and the seal, and the hydrogenation port will continue to rub against the sealing surface. Due to the limitation of sealing technology, the sealing performance of the hydrogenation gun developed in China cannot meet the pressure requirement of 70MPa. Secondly, if the wear resistance of the selected material is poor, the service life will be low, and there will be a safety hazard of gas leakage after the key sealing parts are worn out, which is far from meeting the actual use needs; the hydrogenation gun is a part that the staff of the hydrogenation station often contacts, in order to ensure hydrogenation The use of the gun is safe, and the pressure resistance of its key parts is not lower than 90MPa, especially for the sealing parts

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