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A kind of device and method for sampling liquid working medium of spacecraft

A spacecraft and liquid technology, applied in the field of spacecraft on-orbit liquid working fluid sampling devices, can solve the problems of excessive sampling and inability to accurately control the sampling volume, etc., to achieve accurate sampling volume, solve the problem of accurate sampling, and achieve the effect of accurate sampling

Active Publication Date: 2022-02-11
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole sampling process depends entirely on the experience of the operator, and there is a certain possibility that improper operation may lead to excessive sampling
For liquid reservoirs without liquid level sensors, the entire sampling process depends entirely on the experience of the operator, and the sampling volume cannot be accurately controlled

Method used

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  • A kind of device and method for sampling liquid working medium of spacecraft
  • A kind of device and method for sampling liquid working medium of spacecraft
  • A kind of device and method for sampling liquid working medium of spacecraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 , Figure 5 ~ Figure 8 As shown, an on-orbit liquid working medium sampling device for a spacecraft in this embodiment includes a sampling housing 1, and a capsule barrier structure 2 is arranged in the sampling housing 1, and the capsule barrier structure 2 separates the The cavity of the sampling housing 1 is divided into a first gas side 3 and a first liquid side 4 which are mutually sealed, and the sampling housing 1 is respectively provided with a first gas side connection port and a first liquid side connection port, the The first gas side connection port is arranged corresponding to the first gas side 3 of the sampling housing 1 , and the first liquid side connection port is arranged corresponding to the first liquid side 4 of the sampling housing 1 .

[0050] Such as figure 1 , Figure 5 ~ Figure 8 As shown, the first gas-side connection port is provided with a first gas-side quick-disconnect port 11 , and the first liquid-side connection por...

Embodiment 2

[0057] Such as Figure 1 to Figure 8 As shown, a kind of spacecraft on-orbit liquid working medium sampling system of the present embodiment includes the sampling device, and also includes an auxiliary pipe 5, a vacuum device and an inflation device, and the two ends of the auxiliary pipe 5 are respectively provided with the The first gas-side quick-disconnect port 11 and the first liquid-side quick-disconnect port 12 are adapted to the quick-disconnect joint 51 .

[0058] The vacuum equipment and the inflating equipment in this embodiment can be independent equipment or an integrated device, and the inflating equipment can be an inert gas inflating equipment.

[0059] Such as Figure 5 , Figure 6 and Figure 8 As shown, a preferred solution of this embodiment is that the sampling system of this embodiment also includes a test cabinet 6, and the test cabinet 6 is provided with a nitrogen port 62 and a vacuum port 61, and both the vacuum device and the gas charging device a...

Embodiment 3

[0064] Such as Figure 4 ~ Figure 8 As shown, a kind of spacecraft on-orbit liquid working fluid sampling method of the present embodiment comprises the following steps:

[0065] S1, before sampling, the state of the liquid circuit 7 is as follows Figure 4 As shown, the pressure of the second gas side in the reservoir inside the liquid circuit is P 1 , the second gas side volume is V 1 ;The pressure of the second liquid side is the same as that of the second gas side, P 2 =P 1 , the volume of the second liquid side is V 2 Use the auxiliary pipe 5 to connect the first liquid side connection port of the first liquid side 4 of the sampling housing 1 with the vacuum interface 61 of the vacuum equipment, and the capsule barrier structure 2 in the sampling housing 1 is under pressure, the first The volume of the liquid side 4 is pressed to the minimum. At this time, the first liquid side 4 is in a vacuum state, and the pressure of the first liquid side 4 is P 3 , the volume o...

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Abstract

The invention relates to an on-orbit liquid working medium sampling device and method of a spacecraft. The sampling device includes a sampling housing, and a capsule-type barrier structure is arranged inside the sampling housing. The capsule-type barrier structure separates the cavity of the sampling housing The body is divided into a first gas side and a first liquid side which are mutually sealed, and the sampling housing is respectively provided with a first gas side connection port and a first liquid side connection port, and the first gas side connection port is connected to the The first gas side of the sampling housing is arranged correspondingly, and the first liquid side connection port is arranged correspondingly to the first liquid side of the sampling housing. The on-orbit liquid working medium sampling device of the spacecraft of the present invention can realize the precise control of the on-orbit sampling volume of the liquid system, and can obtain a relatively accurate sampling volume.

Description

technical field [0001] The invention relates to the related technical field of spacecraft on-orbit sampling, in particular to a spacecraft on-orbit liquid working medium sampling device and method. Background technique [0002] There are multiple liquid circuits on the spacecraft, using water, ethylene glycol, perfluorotriethylamine and other working fluids as heat dissipation media to dissipate heat for the heating products of the space station. There are pipelines, pumps, sensors, filters, reservoirs, valves and other components in the liquid circuit, and different materials are used to contact the liquid working medium. During long-term use, the liquid working medium in the liquid circuit will occur Changes in some characteristics, such as changes in pH, increased impurities, microbial growth, etc., so it is necessary to sample the liquid working fluid in the liquid circuit at intervals and analyze the sampled liquid working fluid in detail. [0003] For a liquid circuit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 郭栋才盛强王珂朱清淋刘英义韩为明
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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