Cooling device for condenser of central air conditioning system

Abstract

A cooling device for a condenser of a central air conditioning system comprise a phase change generator, an air pipe, a thermal recoverer and a liquid pipe, wherein one end of the air pipe is connected at the top of the phase change generator, the other end of the air pipe is connected with the thermal recoverer, one end of the liquid pipe is connected at the bottom of the thermal recoverer, the other end of the liquid pipe is connected with the lower portion of the phase change generator, one end of the air pipe connected with the thermal recoverer is connected at the upper portion of the thermal recoverer, a heat exchange coil is positioned in the thermal recoverer, one end of the heat exchange coil is connected with a cold water inlet pipeline, the other end of the heat exchange coil is connected with a hot water outlet pipe, the condenser is positioned at the lower portion in the phase change generator, air-liquid phase change materials are filled in the phase change generator and submerges the condenser in liquid state, and phase change temperature of the air-gas phase change materials is 25 DEG C to 35 DEG C in standard atmospheric pressure. The cooling device for the condenser of the central air conditioning system is low in energy consumption and good in cooling effect.

Description

technical field [0001] The invention relates to a central air-conditioning system, in particular to a device for cooling a condenser in the central air-conditioning system. Background technique [0002] The refrigeration unit in the air conditioning system includes an evaporator, a compressor, a condenser, and a throttling device, in which there is a refrigerant that circulates "carrying heat" driven by the compressor. Among them, the condenser is a heat exchange device used to cool the refrigerant (in a state of high temperature and high pressure when entering the condenser)—specifically, the condenser is cooled with a cooling medium to exchange heat between the refrigerant and the cooling medium, and finally play a role The role of cooling refrigerant. For the central air-conditioning system used in large buildings, the cooling medium used to cool the condenser is water, so it is commonly called "water cooling". The water-cooled system includes a cooling water pump that ...

AI Technical Summary

Problems solved by technology

However, since the cooling water mainly absorbs the heat of the refrigerant in the form of sensible heat of water, the cooling capacity of the cooling water is limited by the outdoor ambient temperature and its own characteristics, and its cooling capacity is small. In order to ensure a reliable cooling effect, You can only increase the flow and velocity of the cooling water, which not only requires a cooling water pump with a relatively large power and a water pipe with a larger diameter, but also the power of the cooling fan in the cooling tower will also increase accordingly. Because the inlet temperature of the cooling water is relatively high, the condensation temperature of the refrigeration unit in the air conditioning system is also relatively high, the COP value of the refrigeration unit decreases, and the operating energy consumption of the air conditioning system increases

That is to say, the cooling device of the condenser in the existing central air-conditioning system not only has the disadvantages of large energy consumption and high operating cost, but also has poor cooling effect, which makes the COP value of the refrigeration unit smaller and increases the air-conditioning capacity. Operating energy consumption of the system

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