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Testing device for testing low-temperature adsorption performance of gas

A test device and adsorption performance technology, which is applied in the field of gas adsorption performance testing, can solve the problems of waste of raw materials and complicated experimental operations, and achieve the effects of accurate and controllable temperature, simple operation and high reliability

Active Publication Date: 2017-02-22
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test device uses a refrigerator as a cold source, which solves the problem that the gas low-temperature adsorption performance test device in the prior art relies too much on low-temperature liquids, which leads to complicated experimental operations and a large waste of raw materials used as low-temperature liquids; at the same time, the present invention The test device provided also realizes the precise and controllable temperature of the sample chamber and the function of testing the low-temperature adsorption performance of multi-component gases

Method used

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  • Testing device for testing low-temperature adsorption performance of gas

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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment provides a test device for testing the low-temperature adsorption performance of a single-component gas, and the test device includes a low-temperature device 1, which is used to test the adsorption properties between the test gas and the test sample. The gas adsorption instrument 2 for testing and the gas intake pipeline 100 connected to the adsorption instrument reference chamber 21 in the gas adsorption instrument 2 for testing gas input; , and the intake pipeline 100 is provided with a first valve 1001 .

[0027] The cryogenic device 1 includes a refrigerator 11, a sample cavity 3 for placing samples for testing on the secondary cold head 111 of the refrigerator 11, a cover set outside the secondary cold head 111 of the refrigerator 11 and the sample cavity 3 The shielding cover 4 and the vacuum cover 5 that are arranged outside the shielding cover 4 to make the first-stage cold head 112 of the refrigerator 11, the second-...

Embodiment 2

[0036] like figure 2 As shown, this embodiment provides a test device for testing gas low-temperature adsorption performance for multi-component gases. The gas adsorption instrument 2 for testing, the intake pipeline 100 connected to the adsorption instrument reference cavity 21 in the gas adsorption instrument 2 for testing gas input, and the multiple groups connected to the intake end of the intake pipeline 100 The sub-gas reference chamber 7, the multi-component gas input pipeline 300 connected to the multi-component gas reference chamber 7, the sampling gas reference chamber 8 arranged in parallel with the intake pipeline 100 and the sampling gas reference chamber 8 The gas chromatograph 81 that chamber 8 is connected; The gas storage tank 9 of a plurality of different components is connected with the gas storage tank 9 of described multi-component gas input pipeline 300 intake end, and described sampling gas reference chamber 8 passes first branch pipeline 82 and The se...

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Abstract

The invention discloses a testing device for testing a low-temperature adsorption performance of gas. The testing device comprises a low-temperature device, a gas adsorption device and a gas inlet pipeline, wherein the low-temperature device comprises a refrigerating machine, a sample cavity which is arranged on a secondary cold head of the refrigerating machine and is used for storing a sample for testing, a shielding cover which covers the secondary cold head of the refrigerating machine and the sample cavity, and a vacuum cover which covers the shielding cover and enables a primary cold head of the refrigerating machine, the secondary cold head of the refrigerating machine and the sample cavity to be in a vacuum environment; the sample cavity is connected with an adsorption device reference cavity in the gas adsorption device through a gas conveying pipeline. According to the testing device provided by the invention, the refrigerating machine is used as a cold source, and problems that a low-temperature adsorption performance testing device excessively depends on low-temperature liquid so that experimental operations are complicated and a lot of raw materials of the low-temperature liquid are wasted in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of gas adsorption performance testing, in particular to a testing device for testing low-temperature gas adsorption performance. Background technique [0002] With the rapid development of my country's social economy, the demand for various large-scale, key, and high-precision key systems continues to increase, and my country has become a major user of large-scale low-temperature refrigeration equipment. The adsorption properties of gases at low temperatures are key parameters in the fields of adsorption refrigerators, adsorption separation design, etc. With the development of low-temperature vacuum adsorption pumps, helium refrigerators and helium liquefiers in China, the research on the adsorption characteristics of various adsorbents (ie samples) is also intensified, but it still cannot meet the technical requirements and needs of large-scale cryogenic refrigeration equipment. In particular, there are ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 沈福至李来风刘辉明卢峻峰黄荣进张恒成赵玉强徐冬李旭李健李墨囡单奕
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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