地源热泵冷热源环境系统由能量采集系统、能量提升系统和末端能量释放系统（包括生活热水系统）三部分组成。

    能量采集系统采用单井抽灌技术以地下水为介质，以水泵作为输送动力，将浅层中的热能采集后送入换热器，与来自能量提升系统的循环水进行热交换，使循环水不断地获得热量。

    能量提升系统由蒸发器、冷凝器、压缩机和膨胀阀等组成，按热泵原理进行工作。蒸发器中的液态制冷剂吸收循环水中的热量后汽化、被电动压缩机吸入后加压，然后进入冷凝器与末端循环水进行热交换，释放出热量，同时制冷剂冷凝成液体，经膨胀阀截流降压后再次进入蒸发器，完成一次循环。

    末端能量释放系统的循环水在冷凝器吸取热量后，经末端循环泵输送到风机盘管等散热设备对建筑物进行供暖或经换热器对自来水进行加热。加热后的自来水被作为生活热水输送到所需的地方。

    夏季制冷过程是冬季供暖的逆过程。

Ground Source Heat Pump (GSHP) System working Principle

(Winter Heating for Example)

GSHP System is composed of 3 parts: energy acquisition system, energy upgrading system and terminal energy release system (including hot water system).

The energy acquisition system’s core technology is single-well technique which takes underground water as medium and use water pump as its transportation power. It extracts heat energy from the shallow ground and delivers it into heat exchanger in which the energy makes heat exchange with the cycling water from the energy upgrade system. By doing so, the cycling water gets energy continuously.  

The energy upgrading system has the following main parts: evaporator, condenser, compressor and expansion valve, etc. It works on heat pump principle：The liquid refrigerant will be vaporized when it absorbs the heat in the cycling water, and also be pressurized after getting into the electric compressor; and then it gets into the condenser making heat exchange with terminal circulating water and releases heat; then the refrigerant condenses into liquid and runs into evaporator after being decompressed by expansion valve. The process above is a complete cycle. 

The cycling water which has extracted enough heat in the condenser of the terminal release system will be delivered into radiating devices, such as fan-coil etc, through the terminal circulating pump or heating the tap-water by the heat exchangers. And then the heated tap-water will be delivered to where it is needed.

Cooling process in summer is an inverse process of heating in winter.