A One-way Pressure Relief Valve Suitable for Pressure Control in Spacecraft Cabin

A one-way pressure relief valve and internal pressure technology, which is applied in the direction of control valves, valve devices, safety valves, etc., can solve the problems of power consumption, heavy weight, and large size of spacecraft, and achieve increased flow area, low cost, and The effect of resource consumption reduction

Active Publication Date: 2020-03-17
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electronically controlled valves rely on sensors to sense environmental pressure and close the valves through electronic control. The disadvantages are large size, heavy weight, and the need to consume spacecraft power resources for operation.

Method used

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  • A One-way Pressure Relief Valve Suitable for Pressure Control in Spacecraft Cabin
  • A One-way Pressure Relief Valve Suitable for Pressure Control in Spacecraft Cabin
  • A One-way Pressure Relief Valve Suitable for Pressure Control in Spacecraft Cabin

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Experimental program
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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The one-way pressure relief valve applicable to the pressure control in the spacecraft cabin provided by the invention, such as figure 2 As shown, it includes a valve body 1, a gasket 2, a piston 3, a spring 4, a screw 5, a transition flange 8, a compression nut 10 and an adjustment nut 11.

[0022] The piston 3 includes a piston body and a piston rod. The end surface of the piston body is processed with a sealing groove for installing the gasket 2, and the end surface of the piston body is processed with a through hole connecting the outside of the valve body 1 and the inside of the piston 3. The piston body is processed with a position limiting spring 4. limit slot. The piston rod is hollow inside, and a plurality of through holes are processed on the piston rod.

[0023] Such as Figure 4 As shown, the transition flange 8, the compression nut...

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Abstract

The invention discloses a one-way pressure release valve suitable for the pressure control in a spacecraft cabin. The one-way pressure release valve suitable for the pressure control in the spacecraftcabin comprises a valve body, a sealing gasket, a piston, a spring, a transition flange, a compression nut and an adjusting nut. When the one-way pressure release valve is initially at a close state,a pressure release point of the valve can be adjusted on a ground stage according to the requirement on the pressure in the returning cabin of a spacecraft. According to the one-way pressure releasevalve suitable for the pressure control in the spacecraft cabin, pressure release and closing are automatically realized through the way that a pressure sensing element senses a pressure difference ofan inner environment and an outer environment of the returning cabin; and the one-way pressure release valve suitable for the pressure control in the spacecraft cabin has closing and heat protectionfunctions, the spacecraft weight is light, resource consumption is less, and the pressure control mode is simple.

Description

technical field [0001] The invention relates to the technical field of spacecraft environment control, in particular to a one-way pressure relief valve suitable for pressure control in a spacecraft cabin. Background technique [0002] The spacecraft return module can be used for manned exploration, lunar exploration and space science experiments. During the rocket launch phase, as the flight altitude increases, the atmospheric density and atmospheric pressure outside the return cabin drop rapidly. In order to ensure that the structure of the return cabin is not damaged, it is necessary to set a one-way pressure relief valve to reduce the air pressure in the return cabin to a specified pressure value. within range. During the reentry stage of the return cabin, the valve has the function of closing and preventing heat to ensure that the instruments and equipment in the return cabin are not damaged. [0003] At present, electronically controlled valves are more common in aero...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/06F16K17/08F16K15/02
CPCF16K15/028F16K17/06F16K17/082
Inventor 孙晋川曹军崔致和张正军周震周明崔晓杰陶院王振霖
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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