Portable and foldable smog chamber

Abstract

The invention relates to a portable and foldable smog chamber, and belongs to the technical field of the environment test. The technical problem that the existing smog chamber is hard to move, fixed in volume and cannot be simultaneously applied to multiple environments is solved. The smog chamber comprises a smog chamber body, a foldable and retractable unit, a fixation unit and a clamping unit;a smog chamber outer wall, a first fixed plate and a second fixed plate are arranged on the smog chamber body; a gas inlet and a gas outlet are arranged on the first fixed plate; a gas and particulatematter monitoring unit is arranged on the second fixed plate; the fixation unit comprises the first fixed rod to the fourth fixed rod with the same structure; the foldable and retractable unit comprises the first to the fourth foldable and the fourth foldable and retractable rods which have the same structure and are arranged in parallel; the first to the fourth fixed rods are hinged with the first to the fourth foldable and retractable rods. The smoke chamber volume is variable and the movement is convenient; the smog chamber can be used for pollution source collection, photochemical reaction and monitoring outdoor, and can be used for the simulation research of the process for generating secondary organic aerosol through volatile organic matter.

Description

technical field [0001] The invention relates to the technical field of environmental testing, in particular to a portable and foldable smoke box. Background technique [0002] Automobile exhaust and factory exhaust gas contain a large amount of primary pollutants such as nitrogen oxides and hydrocarbons. Under the action of sunlight and ultraviolet rays, photochemical reactions will occur to produce secondary pollutants. The smog formed by their mixture is called photochemical smog. The frequent haze phenomenon in recent years will also accelerate the early arrival of photochemical smog. [0003] The photochemical reactions in the atmosphere are carried out under very complex conditions. Meteorological conditions (wind speed, wind direction, humidity, temperature, light intensity, etc.) and pollutant status (species, concentration, emission sources, etc.) important influence. The smog box simulation system is a device designed to simulate photochemical reactions under simp...

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a portable and collapsible smoke box, which is used to solve the problems in the prior art that the smoke box is not easy to move, has a fixed volume, and cannot be used in multiple environments at the same time.

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