Heat Exchanging and Accumulating Single Well for Ground Energy Collection

Abstract

An underground heat transferring method and system is disclosed. The system includes a water-blocking heat-exchanging outer wall defining an enclosure and an insulated tube located inside the enclosure. The insulated tube defines a perforated portion at the bottom. Multiple heat exchanging particles are disposed between the outer wall and the insulated tube. The system also includes an inlet that is configured for receiving a working fluid and directing the working fluid to flow through the heat exchanging particles towards the bottom of the enclosure. A pump located inside the insulated tube is configured for pumping the working fluid collected at the bottom of the insulated tube. An exhalant siphon fluidly connected to the pump inside the insulated tube is configured for delivering the working fluid out of the underground heat transferring system.

What is claimed is: 
     
         1 . An underground heat transferring system, comprising:
 a water-blocking heat-exchanging outer wall defining an enclosure;   an insulated tube located inside the enclosure, the insulated tube defining a perforated portion at the bottom;   a plurality of heat exchanging particles disposed between the outer wall and the insulated tube;   an inlet configured for receiving a working fluid and directing the working fluid to flow through the plurality of heat exchanging particles towards the bottom of the enclosure;   a pump located inside the insulated tube, the pump configured for pumping the working fluid collected at the bottom of the insulated tube; and   an exhalant siphon fluidly connected to the pump inside the insulated tube, the exhalant siphon configured for delivering the working fluid out of the underground heat transferring system.   
     
     
         2 . The heat transferring system of  claim 1 , wherein each of the plurality of heat exchanging particles having a predefined geometrical shape. 
     
     
         3 . The heat transferring system of  claim 2 , wherein the geometrical shape of the plurality of heat exchanging particles is determined at least in part based on temperature of a ground energy source. 
     
     
         4 . The heat transferring system of  claim 2 , wherein each of the plurality of heat exchanging particles is a generally spherical shape particle having a diameter between 1 cm and 10 cm. 
     
     
         5 . The heat transferring system of  claim 4 , wherein the plurality of heat exchanging particles is uniform in size. 
     
     
         6 . The heat transferring system of  claim 1 , wherein each of the plurality of heat exchanging particles is a polished rock. 
     
     
         7 . The heat transferring system of  claim 1 , wherein the outer wall and the insulated tube extend generally parallel with respect to each other. 
     
     
         8 . The heat transferring system of  claim 1 , further comprising:
 at least one deflector positioned between the outer wall and the insulated tube.   
     
     
         9 . A heat transferring method, comprising:
 directing a working fluid to flow through a plurality of heat exchanging particles disposed between a water-blocking heat-exchanging outer wall and an insulated inner tube;   collecting the working fluid at the bottom of the inner tube; and   pumping the collected working fluid through an exhalant siphon to deliver the working fluid.   
     
     
         10 . The heat transferring method of  claim 9 , wherein each of the plurality of heat exchanging particles having a predefined geometrical shape. 
     
     
         11 . The heat transferring method of  claim 10 , wherein the geometrical shape of the plurality of heat exchanging particles is determined at least in part based on temperature of a ground energy source. 
     
     
         12 . The heat transferring method of  claim 10 , wherein each of the plurality of heat exchanging particles is a generally spherical shape particle having a diameter between 1 cm and 10 cm. 
     
     
         13 . The heat transferring method of  claim 11 , wherein the plurality of heat exchanging particles is uniform in size. 
     
     
         14 . The heat transferring method of  claim 12 , wherein said heat transferring method is configured for facilitating heat transfer for an underground heat transferring system. 
     
     
         15 . An underground heat transferring method, comprising:
 a) directing a working fluid to flow through a plurality of heat exchanging particles disposed between a water-blocking heat-exchanging outer wall and an insulated inner tube;   b) collecting the working fluid at the bottom of the inner tube;   c) pumping the collected working fluid through an exhalant siphon located inside the insulated tube to deliver the working fluid to a heat consuming device; and   d) receiving the working fluid returned from the heat consuming device and repeating step a).   
     
     
         16 . The underground heat transferring method of  claim 15 , wherein each of the plurality of heat exchanging particles having a predefined geometrical shape. 
     
     
         17 . The underground heat transferring method of  claim 16 , wherein the geometrical shape of the plurality of heat exchanging particles is determined at least in part based on temperature of a ground energy source. 
     
     
         18 . The underground heat transferring method of  claim 16 , wherein each of the plurality of heat exchanging particles is a generally spherical shape particle having a diameter between 1 cm and 10 cm. 
     
     
         19 . The underground heat transferring method of  claim 15 , wherein the plurality of heat exchanging particles is uniform in size. 
     
     
         20 . The underground heat transferring method of  claim 15 , wherein each of the plurality of heat exchanging particles is a polished rock.