Geothermal community loop field

A geothermal community loop field serving as a shared means of heat exchange for a plurality of thermal loads, which comprises:

• (a) a plurality of subterranean heat exchangers contacting the ground and carrying a circulating heat exchange fluid, said subterranean heat exchangers being capable of facilitating the exchange of thermal energy between said ground and said circulating heat exchange fluid;
• (b) a plurality of flow control centers connecting said geothermal community loop field in fluid flow communication with said thermal loads, each of said flow control centers being capable of controlling the flow of said circulating heat exchange fluid between said geothermal community loop field and a single thermal load, each comprising:
• (i) an entering three-way valve connected in fluid flow communication with an exiting three-way valve, a flow setting valve, and a loop supply conduit which carries said circulating heat exchange fluid away from said subterranean heat exchangers into said flow control center;
• (ii) an exiting three-way valve connected in fluid flow communication with said entering three-way valve, a check valve, and a loop return conduit which carries said circulating heat exchange fluid out of said flow control center towards said subterranean heat exchangers;
• (iii) a flow setting valve connected in fluid flow communication with said entering three-way valve and a load supply conduit which carries said circulating heat exchange fluid out of said flow control center and into said thermal load;
• and
• (iv) a check valve connected in fluid flow communication with said exiting three-way valve, and a load return conduit which carries said circulating heat exchange fluid out of said thermal load and into said flow control center;
• (c) a conduit system which connects said subterranean heat exchanger, said loop supply conduits and said loop return conduits in fluid flow communication, said conduit system connecting with said subterranean heat exchangers in an arrangement which allows said circulating heat exchange fluid to flow through said subterranean heat exchangers in a parallel manner when a plurality of subterranean heat exchangers are employed;
• and
• (d) a purging manhole connected in fluid flow communication with said piping means, said purging manhole providing a means for introducing said circulating heat exchange fluid into said geothermal community loop field and extracting said circulating heat exchange fluid from said geothermal community loop field.