Air purification comprehensive testing device for tunnel or subway

Abstract

The invention provides an air purification comprehensive testing device for a tunnel or a subway. The device is composed of a mixing box, an electrostatic precipitation test section, a denitration test section, and a fan section, which are connected sequentially. The inlet of the mixing box is the inlet of a harmful gas, and the outlet of the fan section is the outlet of a clean gas. The electrostatic precipitation test section is internally provided with a vortex gate and an electrostatic precipitator, wherein the vortex gate is arranged near one side of the mixing box; the denitration test section is internally provided with splitting plates and an active carbon wall, wherein the active carbon wall is arranged in the middle of the denitration test section, and the splitting plates are arranged at the front and rear sides of the active carbon wall; and the fan section is equipped with a fan. According to the invention, deficiencies in the prior art are overcome; under the precondition of ensuring the speeds of flow, passing through the electrostatic precipitator and the active carbon wall, to be uniformly dispersed, the dedusting efficiency of the electrostatic precipitator and the denitration efficiency of active carbon are improved; particulate matters and nitrogen oxide in the harmful gas can be effectively removed; and the cleanness of the gas at the outlet is guaranteed. The device can be applied to practical engineering of air purification in the road tunnel or the subway.

Description

technical field [0001] The invention relates to an air purification comprehensive test device for tunnels or subways, belonging to the technical field of air purification. Background technique [0002] With the rapid development of the national economy and transportation industry, the length and quantity of highway tunnels are also increasing. For long tunnels, due to the incomplete combustion of automobiles and diesel vehicles, high concentrations of polluting gases are produced. The main pollutants include particulate matter PM, carbon monoxide CO, nitrogen oxides NO X , hydrocarbons HC, sulfur dioxide SO 2 etc. In addition, there is dust generated by vehicles during driving, and the tunnel is a partially closed and overall semi-closed space structure. These high-concentration polluting gases cannot be discharged to the outside world, which will affect the health of drivers and passengers and driving safety. pose a safety hazard. [0003] At present, for the treatment o...

AI Technical Summary

Problems solved by technology

For long tunnels, due to the incomplete combustion of automobiles and diesel vehicles, high concentrations of polluting gases are produced. The main pollutants include particulate matter PM, carbon monoxide CO, nitrogen oxides NO X , hydrocarbons HC, sulfur dioxide SO 2 etc. In addition, there is dust generated by vehicles during driving, and the tunnel is a partially closed and overall semi-closed space structure. These high-concentration polluting gases cannot be discharged to the outside world, which will affect the health of drivers and passengers and driving safety. bring security risks

[0003] At present, for the treatment of pollutants in tunnels, many tunnels in my country are limited to using longitudinal jet fans to dilute pollutants, but this method does not fundamentally remove pollutants in tunnels; Discharge polluting gases into the atmosphere, but the number of shafts required in this way brings certain difficulties to civil engineering, and the discharge of polluting gases also affects the surrounding ecological environment and affects the quality of the local environment

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