Temperature control device for isotope spectroscopic analysis system
A spectral analysis and temperature control device technology, applied in the field of isotope infrared spectral analysis, can solve the problems affecting the measurement accuracy of the spectrometer, the reliability of the measurement results cannot be guaranteed, and the heat transfer speed is slow, so as to achieve the effect of improving the measurement accuracy
Active Publication Date: 2019-07-09
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
However, the disadvantage of this method is that there is a heat exchange process after the gas to be measured enters the sample cell, and the heat transfer speed is relatively slow. Measurement accuracy, resulting in the reliability of the measurement results cannot be guaranteed
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[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 As shown, a temperature control device for an isotope spectrum analysis system includes a first sealed incubator 10, a second sealed incubator 20, a preheating incubator 30 and a disturbance device 40; the first sealed incubator 10 is located in the second Seal the interior of the incubator 20, and the outer wall of the first sealed incubator 10 and the inner wall of the second sealed incubator 20 are spaced apart, and the first sealed incubator 10 and the second sealed incubator 20 are filled with nitrogen, wherein the second The sealed incubator 20 is provided with a purge nitrogen inlet 201 and a purge nitrogen outlet 202; the sample pool 50 of the isotope spectroscopic analysis system is located in the first sealed incubator 10, and the spectrometer 60 is located in the first and second sealed incubators 10 and 20 In the interlayer betwee...
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The invention belongs to the technical field of isotopic infrared spectrum analysis, and particularly relates to a temperature control device of an isotopic spectrum analysis system. The temperature control device comprises a first sealed heat preservation tank, a second sealed heat preservation tank, a preheating constant-temperature tank and a disturbance device, wherein the first sealed heat preservation tank is located in the second sealed heat preservation tank; the first sealed heat preservation tank and the second sealed heat preservation tank are filled with nitrogen; a sample pool is located in the first sealed heat preservation tank; an air inlet of the sample pool communicates with an air outlet of the disturbance device; and the air inlet of the disturbance device communicates with the air outlet of the preheating constant-temperature tank. The preheating constant-temperature tank is used for preheating to-be-tested gas when the to-be-tested gas enters the sample pool, and the disturbance device can distribute the temperature of the to-be-tested gas evenly, so that the constant-temperature state same as the environment in which the sample pool is located is achieved, temperature fluctuation in the sample pool when the to-be-tested gas is injected into the sample pool at a room temperature is avoided, and the sample pool is kept in an accurate constant-temperature state to improve the measurement accuracy.
Description
technical field [0001] The invention belongs to the technical field of isotope infrared spectrum analysis, and in particular relates to a temperature control device of an isotope spectrum analysis system. Background technique [0002] Infrared spectroscopy is a spectral analysis technology that uses the infrared absorption spectrum characteristics of gas molecules to perform qualitative and quantitative gas measurement. It has the advantages of high measurement accuracy, real-time, online, and unattended, and can realize on-site analysis and measurement of isotope ratio experiments. However, when measuring isotopes by infrared spectroscopy, the ambient temperature is relatively high, and the gas to be measured is generally required to be in a constant temperature environment. In the prior art, the gas sample absorption cell is usually placed in a constant temperature environment, and then the gas to be measured is sent into the sample cell. However, the defect of this metho...
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IPC IPC(8): G01N21/3504
CPCG01N21/3504G01N2201/0231
Inventor 李相贤高闽光童晶晶李胜王亚萍石建国刘建国刘文清
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI