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Double-layer smog chamber capable of controlling temperature

A smoke box and double-layer technology, applied in the field of smoke box, can solve the problems of reaction rate deviation, achieve temperature stability, reduce fluctuation, and increase repeatability

Inactive Publication Date: 2010-08-25
CENT TESTING INT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the emission spectrum of artificial light sources cannot be the same as that of sunlight in all bands, there is a deviation between the measured photochemical reaction rates and the reaction rates obtained under sunlight.

Method used

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  • Double-layer smog chamber capable of controlling temperature

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0013] Such as figure 1 As shown, the double-layer smoke box is composed of the reaction cabin 4, the control cabin 2, the temperature control system and the gas circuit system. The main body of the smoke box is a double-layer structure, including the outer layer 1 and the inner layer 5, and the outer layer 1 and the inner layer 5. Both are light-transmitting materials; the control cabin 2 is the space between the outer layer 1 and the inner layer 5; the control cabin 2 is equipped with a control ventilation valve 11; the reaction cabin 4 is the space surrounded by the inner layer 5; the reaction cabin 4 is equipped with Reaction gas exchange valve 10 and sampling port 8. Both the reaction chamber 4 and the control chamber 2 are sealable spaces. The temperature control system includes a heat exchanger 6 . The temperature changing mode of the heat exchanger...

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Abstract

The invention discloses a double-layer smog chamber capable of controlling temperature, which can control the temperature of photochemical reaction. The smog chamber consists of a photochemical reaction cabin, an adjustment and control cabin, a temperature control system, and a sampling analysis system. The main body of the smog chamber has a double-layer structure, and the outer layer and the inner layer are all made of transparent materials; a space between the outer layer and the inner layer is the adjustment and control cabin which is provided with an adjustment and control scavenging air valve; and a space enclosed by the inner layer is the photochemical reaction cabin which is provided with a reaction scavenging air valve and a sampling port. The double-layer smog chamber can adjust the temperature of the photochemical reaction, and simultaneously ensures that the photochemical reaction in the photochemical reaction cabin is not influenced by various temperature adjustment devices, so the repeatability of experiments and the reliability of experiment results are improved. Besides, the outer-layer adjustment and control cabin can play a role in protecting the inner-layer photochemical reaction cabin, and prevent gas in the photochemical reaction cabin from being polluted.

Description

technical field [0001] The invention relates to a smoke box, in particular to a double-layer smoke box capable of adjusting the temperature conditions of photochemical reactions. Background technique [0002] Photochemical smog is primary pollutants such as hydrocarbons and nitrogen oxides discharged into the atmosphere by pollution sources such as automobiles and factories. Under the action of sunlight, chemical reactions occur to generate secondary pollutants such as ozone, aldehydes, ketones, acids, and peroxyacetyl nitrate. Secondary pollutants, the smog pollution phenomenon formed by the mixture of primary pollutants and secondary pollutants participating in the photochemical reaction process is called photochemical smog. [0003] In order to understand the mechanism of photochemical reactions, scientific research institutions at home and abroad have generally carried out experimental studies using photochemical smog chambers to simulate atmospheric photochemical reacti...

Claims

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Application Information

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IPC IPC(8): B01L1/00
Inventor 杨果董宁朱平郭冰戴煦
Owner CENT TESTING INT GRP CO LTD
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