THE STANDING COLUMN WELL TYPE GEOTHERMAL SYSTEM WITH GROUND CIRCULATING PUMP

摘要

The present invention relates to an open type geothermal system, more specifically, to an open type geothermal system which installs a circulation pump for circulating underground water not in a well but on the ground to facilitate maintenance, installs a filter device and an automatic air discharging device in a circulation tube to eliminate foreign substances in the underground water and air in the tube, and installs a check valve, a flowmeter, and a water supply pipe in an intake side tube of an underground water circulation pump to fill the intake tube of the underground water circulation pump with water if necessary.