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Organic nitrate multichannel heating device based on cavity ring down spectroscopy technology

A spectrum technology and a heating device technology, which are applied in the field of organic nitrate multi-channel heating devices, can solve the problems of inapplicability for experiments, complex structural parts, and not easy to carry, and achieve the effects of easy portability and maintenance, reasonable layout, and improved effect.

Active Publication Date: 2019-03-22
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structural parts of these large-scale heating equipment are complicated, the operation is troublesome, the price is expensive, and it is not easy to carry, so it is not suitable for experiments.

Method used

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  • Organic nitrate multichannel heating device based on cavity ring down spectroscopy technology
  • Organic nitrate multichannel heating device based on cavity ring down spectroscopy technology
  • Organic nitrate multichannel heating device based on cavity ring down spectroscopy technology

Examples

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Embodiment 1

[0032] Such as Figure 1-4 As shown, a kind of organic nitrate multi-channel heating device based on cavity ring-down spectroscopy technology in this embodiment includes a housing 1, and a multi-channel heater 27 is arranged in the housing 1, and the channel heater 27 is used for the Organic nitrate gas is heated. One end of the multi-channel heater 27 is connected to several air inlets 3 , and the other end is connected to several air outlets 19 , wherein the air inlets 3 and the air outlets 19 are respectively located on opposite sides of the casing 1 . The multi-channel heater 27 is also connected with a heat equalization and flow guide mechanism 26 for dredging the internal airflow.

[0033] The organic nitrate gas to be detected enters the interior of the multi-channel heater 27 through the air inlet 3, and after being heated, it is discharged from the gas outlet 19 for detection, thereby realizing thermal decomposition of the organic nitrate gas. In addition, through m...

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Abstract

The invention provides an organic nitrate multichannel heating device based on a cavity ring down spectroscopy technology. The device comprises a casing, wherein multichannel heaters are arranged in the casing and used for heating organic nitrate gas emitted into the multichannel heaters; one ends of the multichannel heaters are connected with a plurality of gas inlets, the other ends are connected with a plurality of gas outlets, and the gas inlets and the gas outlets are located in two opposite sides of the casing respectively; soaking guide mechanisms used for dredging internal gas flow arefurther connected onto the multichannel heaters. By means of the multiple channels, various types of organic nitrate with different temperature requirements can be pyrolysed simultaneously, heat in the multichannel heaters is uniformly distributed by the soaking guide mechanisms, so that produced heat can uniformly heat the organic nitrate gas in quartz tubes, the pyrolysis effect is improved, and following detection precision is improved; meanwhile, the device further has the good characteristics of being reasonable in layout, simple and easy to use, low in cost, easy to carry and maintain and the like.

Description

technical field [0001] The invention relates to the technical field of organic nitrate measurement, in particular to an organic nitrate multi-channel heating device based on cavity ring-down spectroscopy technology. Background technique [0002] Organic nitrates refer to a class of nitrate groups (-ONO) in the atmosphere 2 ) is the general term for organic compounds. Organic nitrates are roughly divided into two categories: AN (RONO 2 ) and PN(RO 2 NO 2 ). Among them, RONO 2 It will be decomposed into RO and NO at 450 degrees Celsius 2 , RO 2 NO 2 It will be decomposed into RO at 250 degrees Celsius 2 with NO 2 . [0003] Existing equipment CRDS (Cavity Ring-Down Spectroscopy) can measure NO 2 content, but the organic nitrate content cannot be measured, so by heating the organic nitrate, it decomposes to generate NO 2 , can indirectly measure organic nitrate. For this process we need a gas heating unit. [0004] However, most of the existing gas heating device...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N21/01G01N1/44
CPCG01N1/44G01N21/01G01N21/31
Inventor 胡仁志吴盛阳谢品华陈浩靳华伟刘建国刘文清
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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