A central air-conditioning unit integrated with water/ground energy cooling and heating and domestic hot water

Abstract

The invention is suitable for a separate hydraulic / geothermal energy cold and hot domestic hotwater integrated central air-conditioning unit, which comprises a compressor, a heat-recovery heat exchanger, an electromagnetic four-way reversing valve, a separate hydraulic / geothermal energy heat exchanger, a one-way valve, a thermostatic expansion valve, an electromagnetic valve, a drying drier, an air-conditioning side heat exchanger and a vapor-liquid separator which are connected in series through pipelines. According to the invention, water or soil is used as a direct cold and hot source of acoolant, the heat exchangers which are dispersedly arranged on in the water body or soil are used as condensers in the refrigerating season and used for directly refrigerating the coolant to release heat; the heat exchangers which are dispersedly arranged in the water body or soil are used as evaporators in the domestic hotwater making and warming seasons and used for directly evaporating the coolant to absorb heat; and therefore the heat exchanging efficiency is greatly improved. According to the invention, a long-distance fluorine path is initiatively and directly condensed or evaporated inthe water or soil, therefore the land and water resource occupying area mass and the engineering cost are greatly reduced, and the limit to the use of a heat pump from the geological and hydrologicalenvironment is thoroughly broken through.

Description

technical field [0001] The invention belongs to the field of air-conditioning equipment, in particular to the field of a central air-conditioning unit with integrated water / ground energy cooling, heating and domestic hot water, more specifically, it relates to a condenser or an evaporator that is placed separately in water or soil and A central air-conditioning unit that uses water energy or ground energy to directly exchange heat with refrigerant. Background technique [0002] Building energy consumption has accounted for more than 40% of the total energy consumption of the society, and the energy consumption of heating, cooling and domestic hot water in building energy consumption accounts for 70% of building energy consumption. Therefore, using clean and renewable energy to reduce energy consumption and emissions for heating, cooling and domestic hot water production is the key to energy saving and emission reduction for the whole society. [0003] At present, the grou...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a separate water / ground energy heating and domestic hot water integrated central air-conditioning unit, which aims to solve the problems of low heat exchange efficiency and water ring pipeline energy caused by the use of ground-source heat pump central air-conditioning in the prior art. The problems of large consumption, large occupation of water and land resources and high construction cost

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