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Smog chamber

A smoke box and smoke technology, applied in the field of smoke box, can solve the problems of particle concentration reduction, accurate measurement of difficult-reaction gas concentration value, particle concentration value deviation from the actual value, etc., to overcome the loss of particle concentration and avoid the test reaction gas volume Reduced, precisely measured effects

Pending Publication Date: 2021-07-13
HUNAN UNIV
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Problems solved by technology

[0003] At present, in the smog box of the prior art, due to the gravitational settlement and wall settlement in the way of the particles from the reaction chamber to the test equipment, the longer the pipe diameter and the smaller the suction volume of the pump, the longer the time for the particles to reach the test equipment , the particle concentration measured by the external instrument is generally less than the actual concentration of the particle, and because multiple instruments absorb gas from the reaction chamber at the same time during the measurement process, the indoor pollutant gas concentration and particle concentration will continue to decrease, and the measured particle concentration will also decrease. The particle concentration value deviates from the actual value, so it is difficult to accurately measure the concentration value of the reaction gas in the smoke chamber of the prior art

Method used

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solution in the application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the drawings in the embodiment of the application. Obviously, the described implementation Examples are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] It should be noted that when an element is referred to as being "fixed" or "disposed on" another element, it may be directly disposed on another element or indirectly disposed on another element; when an element is referred to as being "connected" It may be directly connected to another element or indirectly connected to another element.

[0028] It i...

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Abstract

Compared with the prior art, a smog chamber disclosed by the invention comprises a transparent smog chamber body; a gas exchange port, arranged on the transparent smog box body and used for introducing test reaction gas; a gas reaction chamber, arranged in the transparent smoke box body; and a concentration measuring mechanism, arranged in the gas reaction chamber and used for measuring and displaying the concentration of the test reaction gas particles. Compared with the prior art, the technical scheme provided by the invention has the advantages that the structure is simple, the practicability is high, and the concentration value of the test reaction gas in the box can be accurately measured.

Description

technical field [0001] The present application relates to the technical field of atmospheric environment test equipment, and more specifically, relates to a smoke box. Background technique [0002] The smog chamber is one of the tools for atmospheric environment simulation experiments. It is mainly used to study the formation mechanism of photochemical smog and secondary particles. It can simulate the chemical process in the atmosphere, thereby extracting the essence of the chemical reaction in the atmospheric environment from complex experimental phenomena. Conditions can be artificially controlled and changed, and repeated experimental research can be carried out. Therefore, it has great advantages when conducting mechanism research on chemical reactions in the atmospheric environment and solving environmental pollution problems under complex conditions. [0003] At present, in the smog box of the prior art, due to the gravitational settlement and wall settlement in the wa...

Claims

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Application Information

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IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 许世镗
Owner HUNAN UNIV
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