Dealing with sudden indoor air pollution in public buildings

Abstract

The invention provides a treatment method for sudden air pollution in public buildings, which includes: establishing a computational fluid dynamics model to simulate the dynamic concentration distribution of sudden air pollution under conventional ventilation; dividing the simulated object into calculation areas; The multi-agent model software obtains the dynamic distribution of personnel in the calculation area; calculates the cumulative exposure risk of air pollution according to the dynamic concentration distribution and dynamic distribution of personnel; determines the optimization function model to obtain the key protection area of ​​ventilation; determines the design of air pollution concentration in the key protection area of ​​ventilation Threshold; According to the reverse matching of the concentration design threshold, the emergency ventilation scheme is obtained; the emergency ventilation scheme is tested to the final output ventilation safety area. The present invention reversely matches the corresponding emergency ventilation scheme and operation control measures through the design threshold of air pollution concentration, and creates a ventilation safety area in the public building, thereby maximally ensuring the safety and health of the indoor personnel in the public building when sudden air pollution occurs.

Description

technical field [0001] The invention belongs to the technical field of building ventilation safety area design, and in particular relates to a treatment method for sudden indoor air pollution in public buildings. Background technique [0002] Since most public buildings are crowded with people, people may become potential targets of terrorists. There are many ways to attack public buildings, but the attack method of releasing biological and chemical warfare agents inside public buildings is relatively secretive, and once released may lead to disastrous consequences. When important public buildings are facing the risk of such attacks, how to create a ventilated safe area in the building through the effective organization of emergency ventilation, so that the safe area can still guarantee evacuation to the safe area even when facing the most unfavorable attack scenarios Indoor personnel are exposed to a lower pollution concentration, which is a technological innovation that u...

AI Technical Summary

Problems solved by technology

Its concept is similar to civil air defense ventilation and accident ventilation, but due to the randomness of biochemical attacks, it is first necessary to determine the possible indoor pollution exposure concentrations of indoor personnel caused by different attack scenarios, and due to the organization of indoor personnel evacuation, it is also necessary to obtain The dynamic distribution of indoor personnel, the above dynamic data can be obtained through prior simulation with existing simulation software, but there is no method to quantify the exposure risk of indoor personnel by considering the dynamic changes of indoor air pollution concentration and the dynamic distribution of indoor personnel at the same time

Moreover, there is currently no public technology that can be used as a reference for the bidirectional optimization problem of the coupling of the ventilation safety area.

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