Advanced Direct Exchange Geothermal Heating/Cooling System Design

Abstract

A direct expansion/direct exchange (“DX”) geothermal heating/cooling system having a plurality of pin restrictors positioned in housing units at ground accessible locations. The pin restrictors are preferably located near the compressor unit and on the field side of the distributor. Refrigerant is substantially equally distributed by a distributor to substantially equally sized line sets in the DX system with multiple wells. The distributors are place in either horizontal or vertical inclinations with the pin restrictors situated on the field side of the distributor in each individual liquid refrigerant transport line. A cut-off ball valve is located within the liquid refrigerant transport line on each side of the respective pin restrictor housing units. A filter/dryer is place within the same liquid refrigerant transport line segment as the pin restrictor(s) with a refrigerant flow shut-off valve being situated on each side of the liquid line segment containing the filter/dryer and the distributor.

1 . A direct expansion/direct exchange geothermal heating/cooling system comprising: 
 a plurality of well units, each well unit including a plurality of refrigerant transportation lines;    a compressor unit for processing refrigerant and operatively connected to the well units;    a distributor operatively connected to the compressor;    an energy distribution field operative connected to the compressor;    a plurality of housing units, each housing unit positioned at a ground accessible location near the compressor unit and on the distribution field side of the distributor, each housing unit including a pin restrictor positioned in one of the refrigerant transportation lines;    a plurality of cut-off ball valves, each cut-off ball valve located within one of the liquid refrigerant transport lines and positioned beside one of the housing units;    a plurality of filters/dryers, each filter/dryer positioned in one of the refrigerant transportation lines proximate to one of the pin restrictors; and    a plurality of refrigerant flow shut-off valves, each shut-off valves being positioned in one of the refrigerant transportation lines containing the filter/dryer and the distributor.    
     
     
         2 . The system of  claim 1  wherein the distributor is place in either a horizontal or vertical inclinations.