Water source cooling air conditioning system and water source cooling regional air conditioning system

Abstract

The invention provides a water source cold supply air-conditioning system and a water source cold supply region air-conditioning system. The water source cold supply air-conditioning system comprises a water cooling unit, an off-line heat exchanger and a valve unit, wherein the water cooling unit comprises an evaporator and a condenser, the evaporator is arranged in a chilled water loop, and the condenser is arranged in a cooled water loop; the off-line heat exchanger is immersed in a flowing water source, and the valve unit is used for switching, so that a closed type cooling water loop is formed in such a way that the off-line heat exchanger is communicated with the condenser when the water cooling unit is operated to substitute for the operation of a cooling tower of the traditional water cooling unit; and the valve unit is also used for switching, so that a closed type chilled water loop is formed in such a way that the off-line heat exchanger is communicated with the evaporator when available temperature difference exists between the water source and an air-conditioning environment, directly supplies cold for the air-conditioning environment through the closed type chilled water loop by utilizing cold energy acquired by the off-line heat exchanger from water source temperature to substitute for cold supply realized through the operation of the water cooling unit and switches off the closed type cooling water loop. According to the invention, the technical and economic benefits of reliable system and outstanding energy conservation are achieved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a water source cooling air conditioning system and a water source cooling area air conditioning system. Background technique [0002] Statistics show that 50% of the world's energy is used in buildings, my country's building energy consumption accounts for 45% of the total energy consumption, and air conditioning energy consumption accounts for 63% of building energy consumption (2007 data). Oceans, rivers, and lakes have huge heat capacity, and their utilization of temperature difference has broad prospects. [0003] In recent years, the use of river water source heat pump air conditioners in the Yangtze River Basin of my country has begun to take shape. The air-conditioning system directly uses the filtered river water to enter the condenser of the heat pump unit (or air-conditioning unit) for heat exchange and cooling, replacing the operation of the cooling tower equ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of the prior art, the present invention provides a water source cooling air conditioning system and a water source cooling area air conditioning system, which adopts an external heat exchanger to make the cooling water loop form a closed cycle, so that natural water sources or secondary The water source performs heat exchange and cooling on the condenser, replacing the operation of the cooling tower of the traditional water-cooled unit, avoiding the pollution problems such as dirt, blockage, and scaling caused by the water quality of the natural water source to the air-conditioning equipment and system. When there is an available temperature difference with the air-conditioning environment, the water-cooling unit is turned off and the air-conditioning environment is directly cooled, which has the technical and economic benefits of system reliability and significant energy saving

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