Vacuum tube o-ring replacement device and replacement method
A vacuum tube and O-ring technology, which is applied in the field of vacuum tube O-ring replacement devices, can solve the problems of manpower and material waste, affecting the progress of the project, reducing work efficiency, etc., and achieving the effects of convenient maintenance, saving manpower and improving production efficiency.
Inactive Publication Date: 2019-04-26
BEIJING INST OF AEROSPACE TESTING TECH +1
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Problems solved by technology
Due to the destruction of the vacuum environment of the vacuum multi-layer insulation tube, this replacement method needs to re-evacuate the vacuum tube. Affected by factors such as the proficiency of personnel, weather humidity and other factors, the requirements for re-evacuation are too high for many factors, and the evacuation time is very long, resulting in It reduces the waste of manpower and material resources, reduces work efficiency, and affects the progress of the project.
Method used
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Embodiment Construction
[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0036] Such as figure 1 As shown, a vacuum tube O-ring replacement device includes a lower housing 1 with a sealing seat interface 15, an upper housing 2 that is rotatably connected to the lower housing 1, and the lower housing 1 and the upper housing 2 are It has a barrel-shaped structure with an open opening. Part of the structure of the upper shell 2 is inserted into the lower shell 1. After the two are connected, a sealable cavity 7 is formed inside. The sealing seat interface 15 is located at the bottom of the cavity 7 and is connected with the cavity. The cavity 7 is connected; it also includes a mounting rod that can movably pass through the upper shell 2 and extend into the cavity 7. The mounting rod is a solid cylindrical rod, one end of which is located in the cavity 7, and the other end is located in the cavit...
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The invention relates to a vacuum tube O-shaped ring replacement device which comprises a lower shell, and an upper shell connected with the lower shell in a rotatable manner, wherein a mold cavity is formed between the lower shell and the upper shell; the bottom of the mold cavity communicates with a sealing seat connection port; the vacuum tube O-shaped ring replacement device further comprises a mounting rod capable of movably penetrating through the upper shell and extending into the mold cavity; the mounting rod comprises a first mounting rod and a second mounting rod; the first mounting rod and the second mounting rod can be aligned with the sealing seat connection port by rotating the upper shell; and the first mounting rod and the second mounting rod can rotate and axially slide relative to the upper shell. The invention further relates to a method for replacing a vacuum tube O-shaped ring by using the replacement device. On-line replacement of the vacuum tube O-shaped ring can be realized, and the working efficiency is effectively improved.
Description
technical field [0001] The invention relates to a sealing ring replacement device, in particular to a vacuum tube O-ring replacement device and a replacement method. Background technique [0002] With the widespread use of low-temperature propellants, vacuum multi-layer insulation tubes, as a thermal insulation method with good thermal insulation performance and low transmission loss, are increasingly used in low-temperature medium transportation conditions. Due to the life requirement of the vacuum multi-layer heat insulation pipeline, in the later maintenance, it is sometimes necessary to replace the O-ring of the evacuation nozzle. In the past, when replacing the O-ring, carbon dioxide gas was filled into the interlayer to replace it quickly. Due to the destruction of the vacuum environment of the vacuum multi-layer insulation tube, this replacement method needs to re-evacuate the vacuum tube. Affected by factors such as the proficiency of personnel, weather humidity and...
Claims
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IPC IPC(8): B25B27/14
CPCB25B27/0028B25B27/14
Inventor 王军宁郁焕礼陶然宋健应媛媛于兰骆青业宋舟航腾磊军陈建军
Owner BEIJING INST OF AEROSPACE TESTING TECH