Split depressurization water/ground energy cold and warm domestic hot water integrated central air conditioning unit

Abstract

An air conditioning system with a hydro / geothermal heat pump for providing domestic cold and hot water, comprising: a compressor (1), a heat recovery heat exchanger (2), a first one-way solenoid valve (5), a separable pressure reduction type hydro / geothermal heat exchanger (3), a use-side heat exchanger (4), and a second one-way solenoid valve (6), wherein the components are sequentially connected and the second one-way solenoid valve (6) is then connected with the compressor (1) to form a cooling / heating cycle; and the system also comprises a third solenoid valve (7) and a solenoid three-way valve (8), wherein the third solenoid valve (7) is connected in parallel with the serially connected second one-way solenoid valve (6), the use-side heat exchanger (4) and the separable pressure reduction type hydro / geothermal heat exchanger (3), the solenoid three-way valve (8) is connected in parallel with the serially connected first one-way solenoid valve (5) and the separable pressure reduction type hydro / geothermal heat exchanger (3), and the solenoid three-way valve (8) is also connected in parallel with the use-side heat exchanger (4).

Description

technical field [0001] The present invention belongs to the field of air-conditioning equipment, and in particular relates to the field of a central air-conditioning unit with integrated step-down water / ground energy heating and domestic hot water. A central air-conditioning unit that uses water energy or ground energy to directly exchange heat with refrigerants in the soil, and integrates heating and cooling domestic hot water. 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 ground source heat pump ai...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a split step-down 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 caused by the use of ground-source heat pump central air-conditioning in the prior art. The problems of high energy consumption of pipelines, large occupation of water and land resources and high project cost

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