A working method of a classroom PM2.5 control system

A technology of control system and working method, applied in heating and ventilation control system, heating and ventilation safety system, climate sustainability, etc., can solve problems such as PM2. The effect of PM2.5 exceeding the standard problem
CN108168035BActive Publication Date: 2020-01-14NO 719 RES INST CHINA SHIPBUILDING IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 719 RES INST CHINA SHIPBUILDING IND
Publication Date
2020-01-14

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Abstract

The invention belongs to the field of fresh air and air purifying field, and provides a control system for PM2.5 of a classroom and a working method of the control system. A set of PM2.5 control unitsis separately arranged on a front door and a rear door of the classroom; each PM2.5 control unit comprises fresh air purifying equipment, a PM2.5 sensor, an air curtain machine and a travel switch, wherein the PM2.5 sensor is arranged at one side of the door, the air curtain machine is arranged above the door, the output end of the PM2.5 sensor is connected with an input end of a comparator, theoutput end of the comparator is connected with fresh air purifying equipment after passing through a PID air speed regulator, and the output end of the comparator is connected with the air curtain machine after passing through the travel switch and a deviation recognizer. The control system is convenient, efficient and reliable to use, can form an air curtain after the air curtain machine is started, inhibits outdoor PM2.5 from entering the room, and effectively solves the problem that indoor PM 2.5 exceeds standards as the classroom door is opened and closed.
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Description

Technical field

[0001] The invention belongs to the field of fresh air and air purification, and specifically is a working method of a classroom PM2.5 control system. Background technique

[0002] In recent years, due to air pollution caused by smog in our country, campus indoor air quality has attracted more and more attention. Outdoor PM2.5 remains high, and indoor air pollution is serious due to the large number of students. Campus indoor air quality can be said to be internal and external troubles, and it is urgent to solve campus indoor air quality.

[0003] All schools are now pushing fresh air into the campus and installing fresh air purifiers in classrooms. The campus fresh air purifier is to exhaust indoor polluted air to the outside. The fresh outdoor air is purified and sent into the room. The fresh air and polluted air are recycled through energy recovery devices to maintain the indoor air quality of the campus.

[0004] Due to the particularity of the classroom functi...

Claims

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