Air-conditioning system with combined operation of evaporative cooling, cold water storage and night ventilation

Abstract

The invention discloses an air-conditioning system with combined operation of evaporative cooling, cold water storage and night ventilation. The air-conditioning system comprises a machine unit shell, wherein a fresh air inlet is formed in one side wall of the machine unit shell; an air conveying port is formed at the lower part of the side wall, opposite to the fresh air inlet, of the machine unit shell; a cold water / cold air machine unit for the evaporative cooling is arranged inside the machine unit shell; a cold water storage tank and a user side are arranged outside the machine unit shell; and the cold water / cold air machine unit for the evaporative cooling, the cold water storage tank and the user side are connected with one another through a pipe network. According to the air-conditioning system provided by the invention, the cold water / cold air machine unit for the evaporative cooling can be started at night to make cold water and cold air by virtue of a power trough and electricity price difference, the cold water is stored in the cold waster storage tank and is supplied to a user at daytime, the cold air is supplied into a room directly to exchange hot air stored in the room, and then the cold load in the room is decreased.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning and refrigeration equipment, and in particular relates to an air-conditioning system that operates in combination with evaporative cooling, water storage, and night ventilation. Background technique [0002] At present, most air-conditioning systems use compression-type mechanical refrigeration, and the refrigerant CFC used S And HCFC working fluid not only destroy the atmospheric ozone layer but also lead to the greenhouse effect. However, evaporative cooling air-conditioning technology uses natural cold source water to produce cold air and cold water through the principle of heat and moisture exchange between water and air. It is an environmentally friendly, efficient, green, low-carbon and economical cooling method. [0003] Due to the large amount of electricity required by the city during the day, it often causes the instability of the power system and the shortage of electricity. ...

AI Technical Summary

Problems solved by technology

[0003] Due to the large amount of electricity required by the city during the day, it often causes instability of the power system and power shortage

The traditional chiller has many moving parts and consumes a lot of power. The operation of the unit consumes a lot of electricity, which aggravates the tension and pressure of electricity consumption during the day.

As a result, the electricity price is high during the day, the power consumption is large, and the operating cost is high; while the electricity is at a low point at night, the electricity price is lower compared with the daytime

[0004] When cooling is needed in summer, when the air conditioning system has finished running for a day, the outdoor temperature is still high, and the heat is transmitted into the room through the wall, and a large amount of heat will be stored in the room, which will increase the temperature of the indoor air, and the air conditioning system will run the next day. When the cooling load required in the room increases, the cooling capacity of the chiller will increase, and the energy consumption will also increase accordingly.

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