Modular low-pressure cutting type gas explosion valve

A modular, low-pressure technology, used in safety valves, balance valves, valve devices, etc., can solve problems such as inability to meet long-term storage requirements and high reliability, unstable rupture diaphragm rupture pressure, and difficulty in diaphragm production. Achieve the effect of light weight, simple structure and improved reliability of action

Active Publication Date: 2018-10-19
SHANGHAI INST OF SPACE PROPULSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the storage structure used in domestic and foreign power system storage tanks is a cut diaphragm type. Generally, a notched diaphragm is installed at the outlet of the storage tank, which cannot meet the requirements of long storage and high reliability.
In the past, the propellant prepackaged before the power system worked using

Method used

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  • Modular low-pressure cutting type gas explosion valve

Examples

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Example Embodiment

[0015] The preferred embodiments of the present invention will be described below in conjunction with the drawings.

[0016] Such as figure 1 As shown, the embodiment of the present invention provides a modular low-pressure cutting type gas explosion valve, which includes a storage tank 7 with an O-ring V13 connected together by a connecting screw 8, a filter screen 5 and a housing 1; The housing 1 is provided with a guide sleeve 4 with an O-ring III12, and the guide sleeve 4 is provided with a piston 2 with a retaining ring 9 and an O-ring II11, and a cutter with a double-track O-ring I10. 3; The storage box 7 is installed with a diaphragm 6 with an O-ring IV14, the cutter 3 is fixed above the diaphragm 6 by a stop ear, and the diaphragm 6 adopts no nicks and thickness Uniform diaphragm; also includes an air cavity A arranged at the upper end of the housing 1, downstream pipelines C on both sides of the inner lower end, and a liquid cavity B arranged at the lower end of the tan...

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Abstract

The invention discloses a modular low-pressure cutting type gas explosion valve. The modular low-pressure cutting type gas explosion valve comprises a storage tank 7, a filter screen and a shell, wherein the storage tank 7, the filter screen and the shell are connected together through connection screws, and the storage tank 7 is provided with an O-shaped ring V; a guide sleeve with an O-shaped ring III is arranged in the shell; a piston with a stop ring and an O-shaped ring II and a cutter with double O-shaped rings I are arranged in the guide sleeve; a membrane with an O-shaped ring IV is installed in the storage tank; the cutter is fixed on the membrane through a limiting lug; and the membrane is free of indentations and uniform in thickness. By adopting the membrane free of indentations and uniform in thickness, the aim of long-term reliable sealing of propellant prepackaging before a power system runs is achieved; and as gas of 2 MPa is adopted to replace an electric detonator asthe driving force and the storage tank module can be reused at the same time, only the gas explosion valve needs to be replaced, the product cost is greatly reduced, and electric resources are saved for the system.

Description

technical field [0001] The invention relates to a valve, which relates to a modular low-pressure cut-off gas explosion valve. Background technique [0002] The gas explosion valve is a key component of the propellant prepackaged module before the power system works, and its long-term reliable sealing directly determines the life of the power system storage tank. This requires the gas explosion valve to ensure long-term reliable storage and reliable operation under extremely harsh environmental conditions, and also requires small appearance and light weight. At present, the storage structure used in domestic and foreign power system storage tanks is a cut diaphragm type. Generally, a notched diaphragm is installed at the outlet of the storage tank, which cannot meet the long storage requirements and high reliability. In the past, the propellant prepackaged before the power system worked using a ruptured diaphragm with a score. The production of this diaphragm was difficult a...

Claims

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Application Information

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IPC IPC(8): F16K17/40
CPCF16K17/40
Inventor 章红莉陈建敏王晓罡陈文曲陆冰袁卫成汪钰
Owner SHANGHAI INST OF SPACE PROPULSION
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