Adsorption heat desorption device

A technology of adsorption heat and desorption, which is applied in the field of chromatographic analysis, can solve the problems of short circuit of the heating wire of the enrichment tube, inaccurate temperature measurement of thermocouples, and enlarged volume of the instrument, so as to reduce the workload of disassembly and solve the problem of inaccurate temperature measurement , easy maintenance effect

Inactive Publication Date: 2016-04-06
FOCUSED PHOTONICS
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  • Abstract
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Problems solved by technology

[0007] 1. Difficult to maintain. The enrichment tube is placed in the copper tube of the refrigerator. When replacing it, a large number of joints and wiring need to be disassembled in a small space; then the enrichment tube is pulled out from the copper tube, and the left and right spaces of the instrument are required to be sufficient Large, which will cause the volume of the instrument to become larger
[0008] 2. There is a large amount of icing in and at the source of the cooling copper tube, which is easy to short circuit with the heating wire of the enrichment tube, and icing may cause serious problems such as inaccurate temperature measurement of thermocouples

Method used

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Embodiment

[0031] figure 1 , 2 Schematically provides the structural diagram of the adsorption thermal desorption device of the embodiment of the present invention, as figure 1 , 2 As shown, the adsorption thermal desorption device includes:

[0032] The heat conductor is installed on the cooling surface 11 of the refrigerator, and the enrichment pipe 31 is buried in the heat conductor in a curved manner; the heat conductor specifically includes: a first heat conductor 21, the first heat conductor One side of the body is installed on the cooling surface of the refrigerator, and the other side facing away from the cooling surface has a curved first installation groove; the second heat conductor 22, the second heat conductor is opposite to the first One side of the heat conductor has a second installation groove matching the first installation groove; the enrichment pipe is installed in the space formed by the first installation groove and the second installation groove, and the inlet a...

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Abstract

The invention provides an adsorption heat desorption device. The adsorption heat desorption device comprises a refrigerator and an enrichment pipe and further comprises heat conducting bodies and a heat insulation cover, wherein the heat conducting bodies are installed on the refrigerating surface of the refrigerator, the enrichment pipe is buried in the heat conducting bodies in a bent mode, the heat insulation cover is arranged on the periphery of the first heat conducting body and the second heat conducting body and fixed to the refrigerator, and an air inlet and an air outlet are formed in the heat insulation cover. The adsorption heat desorption device has the advantages of being small in size, convenient to dismount and the like.

Description

technical field [0001] The invention relates to chromatographic analysis, in particular to an adsorption thermal desorption device. Background technique [0002] Low-temperature adsorption and thermal desorption devices are widely used in the analysis of the separation of low-boiling volatile organic compounds. Usually, samples are enriched at low temperatures and samples are desorbed at high temperatures to achieve sample separation. [0003] At present, the commonly used low-temperature adsorption methods mainly include: low-temperature refrigeration of semiconductor components; refrigerants (such as low-temperature refrigeration of liquid nitrogen); and ultra-low temperature adsorption and analysis devices for refrigerators. [0004] Semiconductor refrigeration has the disadvantage of low refrigeration temperature, the lowest refrigeration temperature is only -30 degrees; [0005] Refrigerant refrigeration has the problem of high refrigerant consumption. [0006] The lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44G01N30/08
CPCG01N1/44G01N30/08
Inventor 李永强李天麟胡建坤刘伟宁韩双来
Owner FOCUSED PHOTONICS
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