Patent ID: 11913678
Assignee: nan
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A ground heat exchange system, comprising:
a reservoir containing water and a submersible pump for the water;
a heat exchanger unit thermally coupled to a building or industrial load to be thermally modified, and thermally coupled to the water in the reservoir;
a plurality of substantially vertical boreholes in the ground, each borehole lined with a watertight membrane and filled with water, the reservoir having a shallower depth than any of the boreholes and the submersible pump being submerged below a water level of the boreholes;
a water-circulating pipe system supplying water pumped by the submersible pump from the reservoir through a water inlet manifold to a set of adjustable balancing valves, one valve per borehole, for balancing flow among the plurality of boreholes, wherein each borehole also includes a water overflow drain coupled to an external gravity-fed drain manifold leading overflow water from the boreholes back into the reservoir;
wherein a top portion of each borehole has a thickened top ring through which a feeder line and a drain port respectively pass into and out of the borehole, and into which a watertight membrane is secured; and
wherein each of the top rings has at least three outward-directed legs for ring support and leveling.