An air conditioning box for controlling indoor air pollution in smoggy days and its operating method

Abstract

The invention discloses an air conditioning cabinet for controlling indoor air pollution in haze days. A fresh air pipe, an air supplying pipe and an air returning pipe are respectively communicated with the air conditioning cabinet, the fresh air pipe is communicated with a fresh air filtering section inside the air conditioning cabinet through a valve, and the fresh air filtering section is divided into an upper fresh air channel and a lower fresh air channel which are independent. A first fresh air valve, at least two levels of fresh air filters, a fresh air draught fan and a second fresh air valve are sequentially arranged inside the upper fresh air channel in the air supplying direction. The filtering efficiency of the two levels of fresh air filters increases gradually in the air supplying direction. A third fresh air valve, a first fresh air filter and a fourth fresh air valve are sequentially arranged inside the lower fresh air channel in the air supplying direction. Under normal working conditions, fresh air enters a mixing section from the lower fresh air channel. In the haze days, the fresh air enters the mixing section from the upper fresh air channel, and therefore the indoor particulate pollution in the haze days is controlled, the resistance of an air conditioning system in the normal working conditions is not increased, operation is economical, and control is easy and convenient.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning systems, in particular to an air-conditioning box for controlling particle pollution in haze days and an operating method thereof. Background technique [0002] Haze weather has become a very active keyword in the media in recent months. my country is a country with serious PM2.5 pollution. The overall situation is high PM2.5 pollution, especially in coastal areas. Moreover, with the continuous development of the economy and the rapid increase of urban car ownership, the proportion of small particulate matter in the urban atmosphere continues to increase. More attention should be paid to the harm of PM2.5 to human health. However, the vast majority of people spend 70% to 90% of their time indoors. The survey of the CCTV international website also shows that nearly 1 / 5 of people stay in a centralized air-conditioned environment for more than 8 hours a day. Therefore, the U.S. Cent...

AI Technical Summary

Problems solved by technology

However, it does not solve the problem of indoor particle pollution control of comfort air-conditioning systems under different outdoor weather conditions.

[0005] Chinese patent (publication number CN102141276B) discloses an air-conditioning box with active anti-dust function and an active anti-dust method for the air-conditioning box. device, air blower, compressed air pump, conveyor, material level controller, electromagnetic pulse valve, pulse controller, and box body. It is proposed to solve the problem of air conditioning box failure caused by filter clogging in sandy and dusty environments.

It can be seen that it does not solve the problem of indoor particle pollution control of comfort air-conditioning systems under different outdoor weather conditions.

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