Exhaust multi-process comprehensive disinfection and sterilization system and method for high-pollution building space

Abstract

The invention provides an exhaust multi-process comprehensive disinfection and sterilization system and method for a high-pollution building space. The system involves a polluted area negative pressure metal ventilation pipe, wherein any position of the polluted area negative pressure metal ventilation pipe communicates with the inlet end of a high-resistance ventilation pipeline with a thermal isolation and insulation layer, and the outlet end of the high-resistance ventilation pipeline with the thermal isolation and insulation layer is connected to the inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve; and the outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of an efficient variable-frequency fan, and a plurality of virus disinfection and sterilization devices are sequentially arranged at the rear end of the efficient variable-frequency fan. According to the exhaust multi-process comprehensive disinfection and sterilization system and method for the high-pollution building space, air possibly containing viruses in the high-pollution building space is subjected to high-temperature disinfection and sterilization through an electric heating pipeline firstly, then the air subjected to high-temperature disinfection and sterilization is guided to the outdoor througha negative pressure pipeline, and the plurality of virus disinfection and sterilization devices carry out diversified thorough disinfection and sterilization on the introduced air so that the virusesin the air in the high-pollution building space can be thoroughly removed.

Description

technical field [0001] The invention relates to a multi-process integrated elimination system and method for air exhaust in highly polluted building spaces, belonging to the field of indoor environment treatment. Background technique [0002] In 2020, the new crown virus is raging around the world, and it is necessary to eliminate the places where a large number of people infected with the virus have been active, so as to avoid the further spread of the virus. Viruses can easily survive for a long time in wet and cold environments, especially in airtight underground spaces or aboveground spaces where external windows cannot be opened. How to ventilate the enclosed building space and avoid secondary pollution caused by virus leakage has become a problem that needs to be solved in the industry. [0003] For example, the underground trading hall of a certain wholesale market has become a high-risk area after the emergency evacuation of virus-infected merchants. The possibilit...

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Problems solved by technology

[0004] Studies have shown that viruses can spread in the form of aerosols. The diameter of the new coronavirus is 60nm-220nm, and it has a strong ability to survive in a humid and low temperature environment. It is difficult and costly to completely filter the new coronavirus through the existing high-efficiency filters. And it is impossible to disinfect the new crown virus, which may easily lead to incomplete filtration or secondary transmission

Moreover, the air duct in the uncontaminated area in front of the filter also lacks effective disinfecting methods after being polluted by viruses

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