Small-sized vacuum thermal environment simulation system
A technology of environmental simulation and vacuum heating, which is applied to the simulation device of space navigation conditions, space navigation equipment, transportation and packaging, etc. Maintenance, unique structure, and the effect of reducing labor intensity
Active Publication Date: 2015-07-22
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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Problems solved by technology
[0004] Since the vacuum pumping unit uses general-purpose oil-filled equipment, it is actually difficult to achieve a vacuum environment without oil pollution. Generally, special cold trap devices are used to reduce oil pollution; and refrigeration and heating mechanisms use coils and heating rods. etc., often have complex structure, difficult processing, easy to wear, leak, blockage, affect the service life, and it is difficult to achieve high temperature accuracy
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[0034] according to Figure 1A , Figure 1B , Figure 2A , Figure 2B , Figure 3A , Figure 3B It can be seen that a miniaturized vacuum thermal environment simulation system consists of a vacuum tank cover plate 1, an O-shaped fluororubber ring 2, a vacuum tank cylinder 3, an L-shaped silicone fluororubber sealing ring 4, a vacuum bottom plate 5, a supporting plate 6, Workbench temperature measurement interface 7a-d, temperature adjustment control equipment (huber-unistat tango) interface 8a-b, package base plate 9, epoxy resin foaming agent 10, package plate 11, reinforcing plate 12, can lid lifting device 13 ( MGPM80-50Z), lifting support cantilever 14, screws 15a-d, glass window 16, O-shaped fluororubber ring 17a-b, screws 18a-d, bolts 19a-h, support frame 20, vacuum pumping equipment (main pump: EDWARDS-nEXT400D; backing pump: EDWARDS-nXDS15i) interface flange 21, test electrical connection interface flange 22, vacuum gauge (ZJ-12) interface flange 23, vacuum chamber...
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The invention discloses a small-sized vacuum thermal environment simulation system. A stainless steel upright cylindrical structure is adopted by a vacuum tank column body; the side face of the vacuum tank column body is connected with four flanges in a welding way; a vacuum tank cover plate is provided with a circular glass window; the glass window and the vacuum tank cover plate are sealed together by adopting an O-shaped fluorine rubber ring, and are connected tightly by adopting a screw; a thermistor is embedded into the lower end of the upper surface of a vacuum bottom plate; the vacuum bottom plate is connected with an electrical cabinet through a workbench temperature measuring interface; the vacuum tank column body and the vacuum tank cover plate are connected hermetically by adopting an O-shaped fluorine rubber ring; the vacuum tank column body and the vacuum bottom plate (5) are connected hermetically by adopting L-shaped silicon fluorine rubber; the vacuum tank cover plate, the vacuum tank column body and the vacuum bottom plate are connected with one another; and the vacuum bottom plate and the vacuum tank column body are sealed in an insulated way by adopting L-shaped silicon fluorine rubber. The small-sized vacuum thermal environment simulation system has the advantages of freeness from oil stains in vacuum in a tank, high accuracy in temperature control, lowering of the labor intensity, high heat exchange efficiency, simple structure, easiness in maintaining and convenience in operating, and can be directly applied to various required production and scientific research practices.
Description
technical field [0001] The invention relates to the technical field of space vacuum thermal environment simulation and testing, and more specifically relates to a miniaturized vacuum thermal environment simulation system, which is suitable for aerospace, optoelectronics, biochemical pharmacy, vacuum coating, and scientific research. Background technique [0002] With the development of my country's aerospace industry, all kinds of on-board electrical equipment must complete various related ground tests, including mechanical, electrical, thermal, vacuum, radiation resistance, compatibility, etc. Online test, and all items must be qualified. For this reason, the ground vacuum thermal environment simulation system has become an essential platform. The system provides high vacuum, high / low temperature constant temperature and alternating environment as required to meet special test requirements. [0003] The vacuum thermal environment simulation system is generally composed of ...
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IPC IPC(8): B64G7/00
Inventor 吴汉华王勤钟达梅刚华
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI