Introduction: We should use the low electricity price during Gudeng, use the water or refrigerant in the air-conditioning system for cold storage, and reduce the use of refrigerators and electricity during peak hours, so as to achieve the purpose of reducing electricity bills and using electricity rationally. If the air conditioner is stored at the same time, it can also supply domestic hot water to the user, so that the user can get the convenience of domestic hot water supply on the basis of reducing the electricity expense, it is another advantage of the cold storage method. 1, working principle The ice storage air-conditioning and hot water supply composite device is based on an ordinary split type air conditioner and is composed of an indoor unit, an outdoor unit, and a cool storage unit (see attached drawing). In this composite apparatus, the refrigerant is also used as a brine at the same time, and the cold storage unit is connected to the refrigerant piping of the indoor air conditioner and the outdoor air conditioner as part of a system outdoor unit. The cold storage coil in the cold storage unit is used as a condenser sub-cooler or a water-cooled condenser. The water in the ice storage tank can reach a higher temperature, and its sensible heat can be fully utilized. In this composite device, the split air conditioner is directly connected to the ice storage tank. In the summer night, the cold coil serves as an evaporator and uses the low electricity price and relatively cool air during cold storage for cold storage. During the peak hours of the electricity consumption, the cold storage coil serves as a condenser subcooler to improve the degree of overcooling and improve the unit. Performance, increased cooling capacity, and reduced air conditioning electricity consumption; after cooling of the cold storage unit is completed, the ice storage tank is converted to a water-cooled condenser, the water in the tank absorbs heat of condensation, and the water temperature rises, which can be used as domestic hot water supply. This composite device is simple to install, low in cost, and fully functional. 2, the work process Only the operation of this composite device in summer is considered here. It is divided into three types of operation: cold storage at night, cooling during the day, and hot water supply. 2.1 Night Cooling At cold storage during the night, valves 2, 3, 6 are opened and the remaining valves are closed. The cold coil is used as an evaporator. The refrigerant is throttled by the valve 2 and then flows into the cold coil, and then evaporates in the coil. The water freezes and cools outside the coil. Although the evaporation temperature decreases during ice storage and the performance of the air conditioner decreases, the low outdoor temperature at night, especially the low temperature of the outdoor dry bulb, can compensate the loss due to the decrease of the evaporation temperature to some extent. 2.2 Daytime cooling During cold storage operation of the air-conditioning during the day, the valves 1 and 3 are closed, and the regulating valve 2 is adjusted so that it cannot throttle. The refrigerant flowing out of the condenser flows into the cold storage coil. After the refrigerant is radiated and cooled, it passes through the valve 5 to throttle and flows into the evaporator to cool it. The degree of subcooling increases, which significantly improves the performance coefficient COP of the air conditioner during the day. 2.3 Hot water supply After the cooling is completed, the temperature of the water in the ice storage tank is increased. In order to make the water temperature reach the required 40°C of domestic hot water supply, the cold storage coil may be converted from a condenser subcooler to a condenser by adjusting the valve. That is, the valve 3 is closed and other valves are opened. The cold coil is used as a water-cooled condenser of the air conditioner. The high-temperature and high-pressure refrigerant that comes out of the compressor passes through the valve 1 and flows into the cold storage coil directly to condense and release heat. The water outside the cold storage coil absorbs the heat of condensation and the temperature is increased, and can be used as domestic hot water supply. The refrigerant coming out of the cold storage coil is throttled by the valve 5 and the refrigeration cycle is completed at the same time. Hebei history air conditioning wood care sales companies mainly produce air conditioning wood care, pipe wood care, rubber wood care, pine wood care, pipe matting, rubber and plastic care code, rubber pipe care, cold wood block, cold pad wood, cold pipe Care, pipe iron cards and so on. contact number.
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