Energy-saving purification device based on internal circulation, air conditioning system and control method of air conditioning system

Abstract

The invention discloses an energy-saving purification device based on internal circulation, an air conditioning system and a control method of the air conditioning system. The energy-saving purification device comprises a filtering and adsorbing unit which is used for adsorbing CO2; an air heating unit which is used for heating air entering the filtering and adsorbing unit so as to release CO2 inthe filtering and adsorbing unit; an air pressurizing unit which is communicated to the filtering and adsorbing unit and is used for increasing the static pressure of the air entering the filtering and adsorbing unit; and a switching unit, wherein the rear end of the air outlet end of the filtering and adsorbing unit is connected to the switching unit, and the switching unit is connected to a purification air outlet pipe and an exhaust pipe. According to the energy-saving purification device, the CO2 concentration of indoor air can be effectively reduced, the fresh air volume can be reduced, and the energy consumption of an air conditioning system can be reduced, so that the designed cold/heat load of the air conditioning system can be reduced, and as the fresh air volume required by a building is reduced, the cold demand of the air conditioning system can be reduced, and the manufacturing cost of the whole air conditioner is reduced.

Description

technical field [0001] The invention relates to the field of air-conditioning equipment, in particular to an energy-saving purification device based on internal circulation, an air-conditioning system and a control method thereof. Background technique [0002] The quality of indoor air directly affects people's health. Current air purification equipment is mainly used to remove harmful substances such as TVOC and PM2.5 in the room, while ignoring the impact of the concentration of carbon dioxide in the air on people. The concentration of carbon dioxide in the urban outdoor air is usually 0.4-0.5% (400-500PPM); when the concentration of carbon dioxide reaches 1% (1000PPM), people will feel dull, lose concentration, and feel palpitations; when the concentration of carbon dioxide reaches 1500- At 2000PPM, people will feel shortness of breath, headache, and dizziness; when it exceeds 2000PPM, the ability to think will obviously decline; when it is above 5000PPM, the human body's...

AI Technical Summary

Problems solved by technology

Usually in summer, the outdoor fresh air temperature is higher than the indoor temperature, and the concentration of PM2.5 in the outdoor fresh air is higher than that indoors, so this solution will increase the energy consumption of building air conditioners and reduce the use time of filter consumables

(2) Use an independent air purifier indoors. This solution can only reduce the content of harmful substances such as PM2.5 and TVOC indoors, but cannot reduce the concentration of indoor CO2, and its use area is small, and it is noisy when running with large air volume Big

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