Method and system for adjusting air quality of high-rise buildings by virtue of natural conditions

Abstract

The invention relates to a method and a system for adjusting air quality of high-rise buildings by virtue of natural conditions. The method comprises the steps of acquiring index data of air quality of a local area, detecting indoor and outdoor air quality, humidity and temperature as well as outdoor wind power, transmitting detection data to a main control system, working out an air quality control strategy by the main control system according to related data of various detections as well as the index data of the air quality of the local area, sending the air quality control strategy to a local controller by the main control system, and controlling a total heat fresh air ventilator to start and stop ventilating by the local controller. The system comprises various air quality detection devices, a ventilation and air change device, the local controller, a local area network and the main control system, wherein the main control system is connected with an air quality index publishing system. According to the system and the method, both the indoor air condition and the outdoor air condition of the high-rise buildings are taken into account, existing facilities of the high-rise buildings are fully used, relatively ideal air at the best time is gathered, and the air quality of the high-rise buildings is controlled and regulated at low cost when the air contamination is uncertain.

Description

technical field [0001] The invention relates to a method and system for adjusting the air quality of high-rise buildings by using natural conditions, and belongs to the technical field of environmental engineering. Background technique [0002] In its natural state, ideal air is a mixture of dry air and water vapour. The composition of dry air is basically stable, of which: nitrogen accounts for about 75.55%, oxygen accounts for about 23.10%, carbon dioxide accounts for about 0.05%, and other rare gases account for about 1.30%. However, with the continuous acceleration of the pace of urban construction, the natural environment on which human beings depend has also undergone great changes. On the one hand, due to the process of industrialization, there are many high-rise buildings, the density of factories and population increases, traffic congestion, and the sharp increase in automobile exhaust, the PM2.5 fine particles, PM10 inhalable particles, carbon monoxide (CO), nitro...

AI Technical Summary

Problems solved by technology

[0004] Due to the uncertainty of outdoor air pollution, adopting the first solution, the air quality problem of high-rise buildings cannot be solved by conventional ventilation methods, and the outdoor air quality cannot be judged without considering the temperature and humidity factors. While doing useless work, May bring in heavily polluted air outside and make the indoor environment worse

[0005] The second solution is to use the air conditioner with specific functions to automatically adjust the indoor air quality. It controls the ventilation by comprehensively analyzing the indoor and outdoor air quality, temperature and humidity, so as to realize the automatic adjustment of the air quality, but there are three shortcomings. : First, the equipment structure is complicated, seasonal operation is changed to perennial operation, and investment is increased, and the air conditioner does not have the advantage of ventilation, which affects the practicality; second, the basis for adjusting indoor air quality is limited to indoor and outdoor air quality data Real-time comparison can easily lead to misjudgment and opposite consequences, because indoor and outdoor are not actually the same air environment, and a unified caliber cannot be used to measure the quality of the air. For example, indoors mainly focus on benzene and formaldehyde, while outdoors focus on PM2.5, etc. In fact, under normal circumstances, the indoor air quality is far worse than outdoors, and the pollution components are much more complex; third, the adjustment mode and intelligent means are single, so it is impossible to predict the trend of the air quality index, and to judge and use the relatively ideal outdoor air quality period

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