A visual microgravity gas capture test device
A test device and gas trapping technology, which is applied in the field of visual microgravity gas trapping test device, can solve problems such as gas introduction, and achieve the effects of good sealing, simple and reliable operation, and convenient installation.
Active Publication Date: 2021-09-24
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
[0005] In view of this, the present invention provides a visual microgravity gas capture test device, which can solve the problem of gas introduction and is simple and reliable in operation
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[0027] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0028] This embodiment provides a visual microgravity gas capture test device, such as figure 1 As shown, it includes a gas trap 8, a transparent observation tube 7, a compensator 9, an expander 3, a pressure sensor I4, a pressure sensor II5, a disconnector I1, a disconnector II2 and a pump 6.
[0029] The breaker is the key equipment to realize circuit on-off during on-orbit maintenance of the fluid circuit, such as image 3 , Figure 4 As shown, each disconnector is divided into two parts, the fixed end and the separation end. When connected, the circuit is connected, and each part is self-sealed after disconnection. In this embodiment, two disconnectors are adopted, namely disconnector I1 and disconnector II2, which are used to simulate the entry and exit of working fluid during on-orbit maintenance.
[0030] The whole device adopts modular design, s...
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The invention discloses a visual microgravity gas capture test device, comprising a gas trap, a transparent observation tube, a compensator, an expander, a pressure sensor, a disconnector I, a disconnector II and a pump; the transparent observation tubes are connected in series In the upstream of the gas trap, the compensator and disconnector I are connected in series downstream of the gas trap, and the disconnector II is connected in series upstream of the transparent observation tube; the pressure sensor, expander and pump are connected in series between the disconnector I and the disconnector. Between the device II, and the pressure sensor is connected in series upstream of the pump, thereby forming a closed circuit; the test device also includes a gas sealing device, the gas is pre-stored in the gas sealing device, and the gas pressure is higher than the circuit pressure before the pump starts; the disconnector II After disconnection, the gas sealing device is connected with the breaker II, and the gas enters the circuit, and then the gas sealing device is disconnected, and the disconnector II is connected again; the pump is started, and the air bubbles enter the gas trap through the transparent observation tube. The invention can solve the problem of gas introduction, and the operation is simple and reliable.
Description
technical field [0001] The invention relates to the technical field of gas-liquid separation, in particular to a visual microgravity gas capture test device. Background technique [0002] With the demand and development of on-orbit services, spacecraft requires more and more products that can be repaired and replaced on-orbit. For the thermal control technology of the fluid circuit, the pipeline equipment generally adopts a modular design, and the module replacement is realized by disconnecting the fluid circuit breaker. After repeated maintenance of the pipeline system in the airtight chamber, a small amount of gas will be introduced into the circuit, plus the gas generated by the long-term slight reaction of the materials in the circuit, so it is necessary to periodically capture the gas in the fluid circuit and discharge the circuit. [0003] The gas-liquid separation and capture under microgravity is completed by the gas trap. After the working medium with bubbles flows...
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IPC IPC(8): G01N1/24F04B51/00
CPCF04B51/00G01N1/24
Inventor 郑红阳曹剑峰满广龙牛春洋郑利杰夏辉程大义
Owner BEIJING INST OF SPACECRAFT SYST ENG