Complex environmental conditions such as sand,dry,cold and low temperature have high require-ments for the air supply volume and air quality of the air conditioning unit in the facility.The use of spray air spray instead of the traditional plate filter for air dust removal can effectively reduce the replacement fre-quency of the filter core,and the resulting sewage needs to be cleaned in time.A spray evaporative cooling spray section embedded in circulation water tank is designed for circular air conditioning units.Compared with the traditional square section,the flow uniformity is higher and the air leakage rate is lower.Dust removal can be effectively carried out in windy and sandy weather,and evaporative cooling can be used to cool hot air in summer.During operation,the turbidity liquid can be separated and the turbidity liquid can be easily discharged.Based on the experimental research method,a test platform was set up to study the changes of turbidity of the water tank under different water supply,turbidity during drainage and the lower limit of drainage.The conclusion was drawn that the spray water turbidity decreased from 23.4NTU to 2.4NTU for 5 times.The single turbidity discharge efficiency of different drainage limits is obviously different,when the drainage limit is reduced from 1/2 tank height to 1/3 tank height,the efficiency is reduced by about 23％.The rule can guide the intermittent operation of the circulating water tank,which can greatly reduce the wa-ter consumption and reduce the energy consumption compared with the conventional continuous operation of the water supply and drainage when spraying and dusting.
air conditioning unitevaporativecoolingexperimental studyturbidity
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