公开(公告)号：US20210355639A1

公开(公告)日：2021-11-18

申请号：US17004013

申请日：2020-08-27

Applicant: Southwest University of Science and Technology

Inventor： Baolong ZHU ,  Xin LI

IPC: E01C3/06 ,  F24T10/17 ,  F24T50/00

Abstract: A vertical ground heat exchanger for reducing the temperature in the carbonaceous shale rock mass and preventing roadbed frost heave includes a heating mechanism, a heat releasing component respectively connected to both ends of the heating mechanism and a refrigeration heat exchange mechanism. The refrigeration heat exchange mechanism is connected to the lower end of the heating mechanism through a heat transfer pipeline and communicates with the heat releasing component. The heat releasing component includes a double-layer heat exchange tube component, a gas-liquid separator and a branch tube, wherein the double-layer heat exchange tube component is respectively connected to the both ends of the heating mechanism, the gas-liquid separator is connected to the double-layer heat exchange tube component, and the branch tube is connected between the gas-liquid separator and the refrigeration heat exchange mechanism. The double-layer heat exchange tube component includes an upper bellows and a lower bellows.