Non-electric explosion propagation type redundancy control electric explosion isolating valve

Abstract

The invention discloses a non-electric explosion propagation type redundancy control chipless high-reliability electric explosion isolating valve. The isolating valve consists of a valve body, an adapter tube nozzle, a baffle ring, a piston, a check ring, an O-shaped rubber ring and a cutter. Before explosion, a medium in a gas cylinder can be separated from a downstream passage by an electric explosion isolating valve sealing position; when a system starting command is received, the non-electric explosion propagation system is exploded to generate high-pressure and high-temperature gas and shock wave; the high-pressure and high-temperature gas and the shock wave are acted on the piston; and the cutter is pushed to cut off a bushing on the sealed position to open the medium and the downstream passage. According to the non-electric explosion propagation type redundancy control electric explosion isolating valve disclosed by the invention, the valve working reliability is improved by a double-explosion device redundant structure design, the phenomenon that metal chips enter the downstream system is avoided by a cutter rear-end single-side positioning structure, the valve miniaturization is realized, and the system reliability is improved. Meanwhile, the system power load is reduced by the non-electric explosion propagation system, and the valve opening synchronism is improved.

Description

technical field [0001] The invention relates to an electric explosion isolating valve for a squeeze type liquid rocket engine storage system, in particular to a non-electric transmission explosion electric explosion isolating valve. Background technique [0002] The electric explosion isolation valve is one of the important components of the extrusion liquid rocket engine. With the continuous development of aerospace technology at home and abroad, in order to realize the miniaturization of the weapon system and save space size, the requirements for miniaturization, high performance and high reliability of each functional component are put forward. In the development of previous models, the electric explosion isolation valve usually adopts a single electric squib drive structure. When the medium passage is opened, a small amount of metal shavings may enter the downstream system and cause safety hazards. It brings a large load and is not suitable for the miniaturization and h...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to improve the working reliability of the electric explosion isolation valve, eliminate the pollution of the downstream system caused by metal chips when the traditional electric explosion isolation valve is opened, and solve the problems of large load caused by multiple valves working at the same time on the power supply, etc.

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