Evaporative cooling air-conditioning system combined with roof spray cooling and night storage

Abstract

The invention relates to an evaporative cooling air conditioning system combining roof spraying cooling and night cold storage. The air conditioning system comprises an outdoor evaporative cooling air conditioning unit. The outdoor evaporative cooling air conditioning unit is connected with a roof water storage tank, a room terminal device disposed in a house and a cold storage water tank outside the house through a water pipe network. The outdoor evaporative cooling air conditioning unit is communicated with the inside of a room through an air supply pipe. The outdoor evaporative cooling air conditioning unit has the advantages that the roof water storage tank effectively lowers cold load formed through roof heat transfer in the daytime, the room is cooled by the cold water in the water storage tank, and the evaporative cooling air conditioning unit is started when the cold water cannot satisfy the cooling requirements; cold storage can be performed by fully utilizing the advantageous weather conditions, the obtained cold water is stored for being used in the daytime, and cooling is performed by fully utilizing low power prices, and operation cost is lowered; in the meantime, by the cold air provided by the evaporative cooling air conditioning system at night, ventilation, cooling and cold storage of the room can be achieved, and cooling time of the room the next day can be postponed.

Description

Technical field [0001] The invention belongs to the technical field of air-conditioning and refrigeration equipment, and specifically relates to an evaporative cooling air-conditioning system that combines roof spray cooling and night cold storage. Background technique [0002] At present, most of the application forms of evaporative cooling air conditioners use evaporative cooling air conditioners to prepare cold water or cold air, and simultaneously provide cooling to the air-conditioned area. In the daytime, the dry and wet bulb temperatures are relatively high, and the air outlet and water temperature of the unit are relatively high. At this time, the efficiency of the unit is relatively low. At night, the air wet bulb temperature is relatively low, and the temperature difference between the dry and wet bulbs is relatively low. Larger, the efficiency of the evaporative cooling air-conditioning unit is higher, and the temperature of the cold air and cold water produced is lowe...

AI Technical Summary

Problems solved by technology

Moreover, in hot weather in summer, when the air-conditioning system finishes running for a day, the outdoor temperature is still high, and the heat is transmitted into the room through the enclosure structure, resulting in a large amount of residual heat in the room. When the air-conditioning system is running the next day, it is necessary to increase the cooling capacity to Eliminate this part of waste heat and increase energy consumption

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