Multiplex millisecond-level rapid pressure relief vacuum mechanism and rapid pressure reduction test system
A millisecond-level, fast technology, applied in space navigation equipment, simulation devices of space navigation conditions, transportation and packaging, etc., can solve problems such as poor repeatability, high pollutants, and inaccurate controllable time, and achieve easy operation, The effect of high degree of automation and simple structure
Active Publication Date: 2021-01-15
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology
According to the requirements of the national military standard, the extremely fast decompression can be completed within 0.1s, so the rapid pressure relief mechanism is required to be able to realize instant opening within milliseconds. In the past, such tests were mostly achieved by impacting glass or diaphragms. , but at the same time there are problems such as poor repeatability, high contamination, and inaccurate controllable time
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[0035] The multiplex millisecond-level rapid pressure relief vacuum mechanism and rapid decompression test system of the present invention will be described in detail below with reference to the accompanying drawings, but the description is only exemplary and not intended to limit the protection scope of the present invention.
[0036] See Figure 2, Figure 2a It is a front view of a multiplexed millisecond-level rapid decompression vacuum mechanism for a rapid decompression environment ground simulation device according to a specific embodiment of the present invention; Figure 2b It is a side view of a multiplexed millisecond-level rapid decompression vacuum mechanism for a rapid decompression environment ground simulation device according to a specific embodiment of the present invention; Figure 2c It is a sectional view A-A of a multiplexed millisecond-level rapid decompression vacuum mechanism for a rapid decompression environment ground simulation device according to a ...
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The invention discloses a multiplex millisecond-level rapid pressure relief vacuum mechanism for a rapid pressure reduction environment ground simulation device. The multiplex millisecond-level rapidpressure relief vacuum mechanism comprises a valve seat sealing assembly, a turnover pressure relief assembly and a traction energy storage assembly, and is characterized in that a lower fixing plateof the traction energy storage assembly and a valve main body of the valve seat sealing assembly are mounted and integrated into a whole in a bolt connection manner; an integrated valve rod on a sealing valve plate in the valve seat sealing assembly is connected with an ejector rod in the traction energy storage assembly in a screw joint mode, and the turnover pressure relief assembly is arrangedon an upper fixing plate of the traction energy storage assembly in a bolt connection or welding mode. The whole structure is free of a dynamic sealing structure, and has the advantages of being adjustable in opening time, good in sealing performance, easy to operate, high in automation degree, high in reliability and higher in functionality.
Description
technical field [0001] The invention belongs to the technical field of environmental simulation and testing, and specifically relates to a multiplex millisecond-level rapid pressure relief vacuum mechanism used for the simulation of products and systems at high altitudes or extremely rapid decompression environments, and also relates to a corresponding rapid decompression test system. Background technique [0002] Rapid decompression refers to high-altitude or space for some reason or situation, because the atmospheric pressure inside the cabin of aircraft, spaceship and spacecraft is relatively high, while the atmospheric pressure outside the cabin is low, so that the outside cabin is directly contacted (instantaneously). depressurization) phenomenon. [0003] For more than a century, the successive emergence and development of aerospace vehicles such as airplanes, rockets, and space shuttles have greatly promoted the progress of human civilization, and not only accelerate...
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IPC IPC(8): B64G7/00
CPCB64G7/00B64G2007/005
Inventor 王军伟韩潇张磊李国华邵静怡张立明刘洋洋何新龚洁刘然
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG