High-efficiency evaporative cooling type water cooling unit and control method thereof

Abstract

The invention discloses a high-efficiency evaporative cooling type water cooling unit and a control method thereof. The high-efficiency evaporative cooling type water cooling unit comprises a shell, acontrol system and an environment temperature sensor, wherein a Carnot cycle channel and a reverse Carnot cycle channel are arranged in the shell; a compressor, an evaporative condenser, a filter, aliquid accumulator, a first fluorine pump, a first electronic expansion valve, a high-efficiency evaporator, a gas-liquid separator and a second electrically operated valve are sequentially connectedto form the reverse Carnot cycle channel; and the first fluorine pump, the first electronic expansion valve, the high-efficiency evaporator, a first electrically operated valve and the evaporative condenser are sequentially connected to form the Carnot cycle channel. The high-efficiency evaporative cooling type water cooling unit provided by the invention adopts the scheme that reverse Carnot cycle and Carnot cycle are operated in one same water cooling unit, so that the complex degree of the water cooling unit is simplified, natural cooling is realized by adopting the Carnot cycle under the conditions of low environment temperature and low load, and the energy consumption of the water cooling unit is reduced.

Description

technical field [0001] The invention relates to the technical field of heating, ventilating and air conditioning, in particular to a high-efficiency evaporative cooling chiller and a control method thereof. Background technique [0002] Traditional central air-conditioning chillers have the following problems when cooling under low ambient temperature and low load conditions: [0003] 1. When the ambient temperature is close to or lower than the outlet water temperature of the high-efficiency evaporator, the chiller often adopts methods such as driving the load, frequency reduction, and intermittently stopping the compressor to achieve cooling under low ambient temperature and low load conditions. However, the compression The frequent start and stop of the machine will affect the life of the equipment, and the above method for cooling cannot meet the requirement of constant water output; [0004] 2. When the ambient temperature is lower than the outlet water temperature of ...

AI Technical Summary

Problems solved by technology

[0003] 1. When the ambient temperature is close to or lower than the outlet water temperature of the high-efficiency evaporator, the chiller often adopts methods such as driving the load, frequency reduction, and intermittently stopping the compressor to achieve cooling under low ambient temperature and low load conditions. However, the compression The frequent start and stop of the machine will affect the life of the equipment, and the above method for cooling cannot meet the requirement of constant water output;

[0004] 2. When the ambient temperature is lower than the outlet water temperature of the high-efficiency evaporator, the compressor is still used for cooling, and the overall energy consumption of the unit is high, which is not energy-saving

Images