Heat recovery type evaporation-condensation type water cooling unit

Abstract

The invention discloses a heat recovery type evaporation-condensation type water cooling unit and belongs to the technical field of air conditioner units. An existing evaporation-condensation type water cooling unit is low in heat recovery rate and low in hot-water recycled temperature in a heat recovery working condition. A water cooling channel performing heat exchange with a refrigerant channel B of a flooded evaporator is additionally arranged in the flooded evaporator, the water cooling channel is connected with a water collection pool through a water pipe to take water from the water collection pool to perform heat exchange with the refrigerant channel B; equivalently, an overheating device is additionally arranged in the flooded evaporator, the low-pressure low-temperature saturated gaseous refrigerant in the flooded evaporator becomes supersaturated vapor after performing full heat exchange with the cooling water at the temperature of about 25 DEG C introduced from the water collection pool, the suction temperature and the suction superheat degree of a compressor are increased accordingly, and the discharge temperature of the compressor is increased; and by means of the heat recovery type evaporation-condensation type water cooling unit, the problems that the evaporation-condensation type water cooling unit is low in heat recovery rate and low in hot-water recycled temperature in the heat recovery working condition are solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning units, in particular to a heat recovery type evaporative condensation chiller. Background technique [0002] As we all know, chillers discharge a large amount of condensation heat through the cooling water system during operation, which increases the ambient temperature of the building and causes serious environmental thermal pollution. Moreover, due to the increase of the ambient temperature, the working environment of the chiller is also deteriorated, resulting in a decrease in the COP of the unit and an increase in energy consumption of the air conditioner. [0003] The heat recovery chiller is to use the heat released during the condensation and exothermic process of the refrigerant in the refrigeration cycle to prepare hot water. Generally speaking, users such as hotels, hotels, hospitals, public bathrooms, and some food processing factories, while providing cooling, also use variou...

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Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to overcome the technical defects of low heat recovery rate and low hot water recovery temperature of the existing evaporative condensing chiller under heat recovery conditions, and provide a heat recovery evaporative condensing chiller Chillers to increase heat recovery and increase the temperature of recovered hot water without affecting the performance coefficient of the unit

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