A high pressure bottle valve

Abstract

The invention discloses a high-pressure cylinder valve. The high-pressure cylinder valve is fixedly connected with a high-pressure gas cylinder through threads on a shell and used for controlling theinflation and deflation of the high-pressure gas cylinder. A cylinder valve main channel, a deflation channel and a safety valve gas inlet channel are arranged on the cylinder valve in parallel. The cylinder valve main channel is used for inflation and deflation, an unloading valve, a main valve and a cut-off hand valve are arranged on the cylinder valve main channel, and the opening and closing of the cylinder valve main channel are controlled through the power connection and disconnection of an electromagnet. The deflation channel is connected with a gas outlet and a gas cylinder inner cavity, a deflation hand valve is arranged on the deflation channel, and deflation can be carried out through hand control. The safety valve gas inlet channel is connected with a safety valve exhaust opening and the gas cylinder inner cavity, and a safety valve assembly is arranged on the safety valve gas inlet channel. When specified temperature is reached, the high-pressure cylinder valve can be automatically started, and gas in the gas cylinder is released through the safety valve exhaust opening. The high-pressure cylinder valve provided by the invention solves the problems, such as low workingpressure, inconvenient manual operation and high processing requirements, of original products, and has the characteristics of simple and convenient operation and reliable sealing.

Description

Technical field [0001] The invention belongs to the technical field of high-pressure gas cylinder valves, and specifically relates to a high-pressure cylinder valve. Background technique [0002] At present, the development prospects of hydrogen energy in transportation are very impressive. Storing high-pressure hydrogen in a gas cylinder is currently the most widely used on-board hydrogen storage method for hydrogen fuel vehicles. The high-pressure gas cylinder is equipped with a bottle valve to control the charging and discharging of the high-pressure gas cylinder. The mainstream working pressure of high-pressure gas cylinders and bottle valves has reached 70 MPa, which requires movement and sealing within a large pressure difference range, and can realize manual and electric control valve opening and closing to meet the needs of different working modes during vehicle driving and maintenance. [0003] Under normal circumstances, the bottle valve is an integrated valve that integ...

AI Technical Summary

Problems solved by technology

The working pressure of this product is low, and the range of sealing pressure difference is small, which cannot meet the requirements of high-pressure work, and the initial air gap cannot be adjusted. When manually controlling the deflation, the original manual cut-off switch needs to be removed first, which is not conducive to product quality assurance and excess prevention. control, the electromagnet accumulates a lot of heat during the long-term energization process, which is not conducive to prolonging the product life

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