A high temperature check valve

Abstract

The invention discloses a high-temperature one-way valve. According to the high-temperature one-way valve, the valve guide adopts a floating guide structure, a moving valve adopts a high-temperature alloy frame surfacing hard alloy structure and cone sealing design, a spring adopts a thermal insulation structure, in addition, through other design measures, the problems that an overhigh-temperatureone-way valve is prone to being clamped and stopped and a high-temperature one-way valve is not prone to being sealed are solved, and the problem that an existing one-way valve can not adapt to the high-temperature environment of 1000 DEG C is solved.

Description

technical field [0001] The present application relates to the field of aerospace and aviation, in particular, to a high-temperature check valve. Background technique [0002] At present, some special working systems, such as the propellant deflagration pressurized system under development, require a check valve with a working temperature of 1000°C. However, the current high-temperature check valve at home and abroad has a working temperature of up to 600°C, which cannot meet the working temperature of 1000°C. Therefore, it is urgent to design an ultra-high temperature check valve that can adapt to the working temperature of 1000°C to meet the ultra-high temperature requirements of some special working systems such as missile rockets, and solve the problem that the current check valve cannot adapt to the ultra-high temperature environment. The design of the rocket body does not have the problem of a 1000°C high temperature check valve. [0003] For the above-mentioned design...

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Problems solved by technology

[0002] At present, some special working systems, such as the propellant deflagration pressurized system under development, require a check valve with a working temperature of 1000°C. However, the current high-temperature check valve at home and abroad has a working temperature of up to 600°C, which cannot meet the working temperature of 1000°C. Therefore, it is urgent to design an ultra-high temperature check valve that can adapt to the working temperature of 1000°C to meet the ultra-high temperature requirements of some special working systems such as missile rockets, and solve the problem that the current check valve cannot adapt to the ultra-high temperature environment. Rocket body design without the problem of 1000°C high temperature check valve

[0003] Aiming at the above design problems of the ultra-high temperature check valve that can adapt to the working temperature of 1000 °C, no effective solution has been proposed so far.

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