An intelligent air quality assurance system and its control method

Abstract

The invention relates to an intelligent air quality guaranteeing system and a controlling method of the intelligent air quality guaranteeing system. The system comprises an outer shell. One side face of the outer shell is provided with an air inlet and an air outlet which extend outdoors, and the other side face of the outer shell is provided with an air returning opening which is communicated with the interior of a room. The inner portion of the outer shell is successively provided with a first filter set, a heat energy exchanging device, a second filter set, an air feeder and an evaporator from top to bottom in the advancing direction of fresh air of the air inlet. The inner portion of the outer shell is successively provided with a circulating air valve, a bypass-valve, the second filter set, the air feeder and an evaporator in the advancing direction of polluted air inside the air returning opening. A central controller is arranged inside the outer shell. A signal input end of the central controller is connected with a sensor set which is arranged inside the outer shell. A controlling output end of the central controller is respectively connected with a controlled end of the air feeder, a controlled end of an exhaust fan, a controlled end of the bypass-valve, and a controlled end of the circulating air valve. The intelligent air quality guaranteeing system and the controlling method have the two functions of indoor air purification and fresh air purification at the same time.

Description

technical field [0001] The invention relates to an intelligent air quality guarantee system that can automatically process the air in the area according to the indoor air quality standard requirements, and make the treated air reach an excellent level, and also relates to its control method, which belongs to air purification and fresh air purification technology field. Background technique [0002] In recent years, air pollution has become increasingly serious. From 2012 to 2013, Beijing and most cities in China were shrouded in smog, which caused great harm to the health of urban residents, and also pushed the attention of PM2.5 to a climax. PM2.5 is the content of particulate matter with a particle size of less than 2.5 μm per cubic meter of air. The generation of PM2.5 is the residue emitted by combustion in the process of daily power generation, industrial production, and automobile exhaust emissions. Most of them contain harmful heavy metals and other harmful substances...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used method to remove indoor air pollution is to install a certain number of air purifiers indoors. In a limited space, the air purifiers can filter harmful gases such as PM2.5 and formaldehyde within a certain period of time, but they will be lost after a period of time. The function of filtering harmful gases, even the released gases become new sources of pollution

In addition, the air purifiers sold on the market do not have the function of filtering carbon dioxide, and the content of carbon dioxide is an important indicator of air quality. The breathing of indoor people, cooking in the kitchen and indoor garbage will all produce carbon dioxide. Exceeding the standard will make people feel headache, stuffy and uncomfortable. Staying in such an environment for a long time will make people in a sub-healthy state, induce various diseases, and affect children's intellectual development

The most effective way to remove indoor carbon dioxide is the dilution method, that is, to reduce the concentration of indoor carbon dioxide by introducing fresh air. The existing fresh air system is mainly based on ventilation, and some fresh air units with air purification function have different effects. Qi, there is no detection function for the main parameters affecting air quality such as PM2.5 particle pollution level in indoor air, VOC harmful gas content, carbon dioxide content, etc., and it is impossible to accurately control the state of indoor air quality, so it is impossible to control it. Effect

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