Refrigeration host system of water-cooled air conditioner

Abstract

The invention discloses a refrigeration host system of a water-cooled air conditioner. The refrigeration host system comprises a main compressor, a main evaporator, a main condenser, a heat recovery heat exchanger, an air conditioning client, a hot water client, a cooling tower and an auxiliary heat pump device, wherein cold side channels of the main compressor and the main evaporator are connected with a hot side channel of the main condenser in sequence end to end; a hot side channel of the main evaporator is connected with the air conditioning client, and a cold side channel of the main condenser is connected with the cooling tower; and a cold side channel of the heat recovery heat exchanger is connected with an inlet of the hot water client, and both ends of the auxiliary heat pump device are respectively connected with an outlet of the hot side channel of the main evaporator and an outlet of the cold side channel of the heat recovery heat exchanger. Thus, the heat recovery temperature grade of the heat recovery heat exchanger is increased, the total heat supplied to the hot water client is increased, the heat requirement of the hot water client is satisfied, the temperature of cooling water of the main condenser is reduced, the refrigeration energy efficiency ratio of the whole refrigeration host system of the water-cooled air conditioner is increased, and energy consumption is reduced.

Description

technical field [0001] The invention relates to refrigeration technical equipment, in particular to a water-cooled air-conditioning and refrigeration host system. Background technique [0002] In hotels, hotels, hospitals, schools and other places, both refrigeration and air conditioning are needed, as well as hot water supply. The traditional solution is to solve the two sets of cold and hot solutions separately. On the one hand, energy such as coal, gas, or electricity must be consumed to produce hot water; on the other hand, cooling towers (or groundwater, air cooling, etc.) must be used to dissipate the condensation heat generated by the air-conditioning system during the refrigeration process into the atmosphere. If it is not effectively used, it will cause obvious waste of energy for occasions where there are both cooling and heating needs. [0003] The basic operating principle of the air conditioning system is the reverse Carnot refrigeration cycle. By inputting a ...

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Problems solved by technology

In practical applications, the proportion of heat recovery has a significant impact on the technical and economic indicators of the project. If the proportion is too low, the investment recovery period will be too long, which may make the project unfeasible. However, if the temperature grade of the recovered hot water is too low, it may Difficult to meet the needs of the hot end

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