Environment simulation calibration wind tunnel

Abstract

The invention discloses an environment simulation calibration wind tunnel. The environment simulation calibration wind tunnel comprises a simulation control cabin and a wind tunnel unit, wherein the simulation control cabin is communicated with the wind tunnel unit to form an annular loop; the wind tunnel unit is internally provided with a humidity generator, an aerosol generator, a power mechanism, a heater and an evaporator; the wind tunnel unit is connected with a dust generation system; the simulation control cabin is provided with an automatic control cabin door and an automatic air inlet valve; the simulation control cabin is internally provided with a three-dimensional worktable capable of being connected with a testing instrument; and the three-dimensional worktable can be used for adjusting a size in a three-dimensional space. According to the environment simulation calibration wind tunnel disclosed by the invention, the simulation control cabin is connected with the wind tunnel unit and can be used for simulating sampling environments under different wind speeds; the aerosol generator can generate aerosol for simulating a particle environment; high-humidity environments and various pressure environments can also be simulated; different environment conditions and extreme environment conditions can be repeatedly simulated; and an extreme working environment condition of an instrument is determined, and changes of operation parameters and data of the instrument in different environments are determined.

Description

technical field [0001] The invention relates to the field of calibration and calibration of instruments, in particular to an environment simulation calibration wind tunnel. Background technique [0002] Particulate matter sampling and analysis instruments are widely used in the fields of environmental protection and scientific research, including stationary sources (steel factory chimneys, cement factory chimneys, heating boiler chimneys, etc.), mobile sources (automobiles, airplanes, ships, etc.) and environmental receptors (monitoring station samplers) All analysis of air quality involves the analysis of particulate matter, including particle number concentration, mass concentration, mass spectrometry component analysis, etc., which require related particulate matter collection and analysis instruments. When sampling and analyzing data with existing particulate matter instruments, due to the unknown sampling environment, phenomena such as data inaccuracy, over-range, outli...

AI Technical Summary

Problems solved by technology

The existing simulation test device for studying aerosol particles is usually a box, which is used to generate aerosol particles and then carry out static calibration of the instrument, which cannot control and simulate the pressure and wind speed. Simulation of the real environment in low-temperature areas, so that the operating parameters of the particulate matter instrument vary greatly in complex environments

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