초록 ▼

An improved geothermal heat exchange unit, which can be placed in ground and/or water, has a rigid hollow core about which is formed a helical winding of thermally conductive tube. The return section of the tube extends vertically along a central axis of the core, separated from the inner wall of th

An improved geothermal heat exchange unit, which can be placed in ground and/or water, has a rigid hollow core about which is formed a helical winding of thermally conductive tube. The return section of the tube extends vertically along a central axis of the core, separated from the inner wall of the core by thermal insulating material. The heat exchange unit is optionally encased in a solid thermally conductive casing and may have a small diameter oil return tube from the lowermost portion of the unit to the suction intake port of a gas compressor. An optional high pressure water hose is attached for installation assistance in wet sand or wet soils.

대표청구항 ▼

[ What is claimed is:] [1.] A geothermal heat exchange unit comprising:a. a substantially cylindrical core having a rigid wall defining a central axis;b. a heat transfer fluid tube having a supply section helically formed around the wall of the core, and a return section connected to a distal end of

[ What is claimed is:] [1.] A geothermal heat exchange unit comprising:a. a substantially cylindrical core having a rigid wall defining a central axis;b. a heat transfer fluid tube having a supply section helically formed around the wall of the core, and a return section connected to a distal end of the supply section;c. the return section of the tube disposed along the central axis of a sleeve, the return section separated from the wall of the core by a thermal insulating material; andd. the core and heat transfer fluid tube enclosed in a rigid casing, the casing having a thermally conductive outer wall filled with a thermally conductive fill material.