技术简介

该技术通过钻机向地下2-3km深处钻孔，在钻孔中安装封闭的金属套管换热器，通过换热介质导出地下热能，并通过地面热泵机组、输配系统向地面建筑物供热。

Introduction

As for this technology, a drilling rig is used to drill a hole 2-3 km below the ground, and a closed metalcasing heat exchanger is installed in the hole to conduct out underground thermal energy through a heatexchange medium and supply heat to ground buildings through the ground heat pump unit and transmissionand distribution systems.