Large-diameter fast-response high-pressure gas transmission device and gas transmission method
A fast-response, large-diameter technology, used in measuring devices, machine/structural component testing, and engine testing. , The effect of improving reliability and high gas transmission rate
Active Publication Date: 2019-06-14
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
With the increasing size of solid rocket motors and the in-depth research on structural integrity, the existing gas transmission control devices and technologies have limitations and cannot meet the test requirements: the gas transmission device with a diameter of 32mm will have low inflation rate and long inflation time. Too long; if only the diameter of the gas transmission device is increased, there will be a problem that the direct-acting solenoid valve cannot be opened under high-pressure gas
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 1 and figure 2 As shown, an embodiment of the large-diameter fast-response high-pressure gas transmission device of the present invention, the gas transmission device includes a front gas transmission pipe 1, a middle gas transmission pipe 2 and a rear gas transmission pipe 3, a front gas transmission pipe 1 and a middle gas transmission pipe 2 A normally open electromagnetic valve 4 is connected between them, a normally closed electromagnetic valve 5 is connected between the middle section air delivery pipe 2 and the back section air delivery pipe 3 , and the back section air delivery pipe 3 is connected to the test unit 6 . The gas transmission device of the present invention is composed of a three-section gas transmission pipe and two sets of pilot solenoid valves. Compared with the pipeline composed of trad...
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The invention discloses a large-diameter quick-response high-pressure gas conveying device and a gas conveying method. The gas conveying device comprises a front-segment gas conveying pipe, a middle-segment gas conveying pipe and a back-segment gas conveying pipe. A normally open electromagnetic valve is connected between the front-segment gas conveying pipe and the middle-segment gas conveying pipe. A normally closed electromagnetic valve is connected between the middle-segment gas conveying pipe and the back-segment gas conveying pipe. The back-segment gas conveying pipe is connected with a testing unit. The gas conveying method comprises the following steps of S1, mounting; S2, preparing gas conveying; S3, realizing gas conveying impact; and S4, closing the valve set. The large-diameter quick-response high-pressure gas conveying device and the gas conveying method have advantages of large diameter, high pressure bearing capability and quick response.
Description
technical field [0001] The invention mainly relates to gas transmission control technology, in particular to a large-diameter fast-response high-pressure and high-pressure gas transmission device and a gas transmission method. Background technique [0002] Some performance testing tests using high-pressure gas as the medium put forward strict requirements for the gas transmission device of the test system, such as high pressure bearing and fast response. For example: the rapid impact loading test of high-pressure strong cold air of solid rocket motors in the aerospace industry requires that the gas transmission device can not only withstand the impact of high-pressure gas but also realize the opening and closing function of the gas transmission channel in a very short time. [0003] In the past, the gas transmission device used in the rapid impact loading test of high-pressure strong cold air for solid rocket motors consisted of two connecting pipes and a direct-acting solen...
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IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 申志彬李道奎李奕飞李海阳李树谦郭宇宋先村
Owner NAT UNIV OF DEFENSE TECH