초록 ▼

A system for cooling a medium includes a line having coolant flowing therein, and a sub-cooling unit in fluid communication with the line. The sub-cooling unit receives a portion of the coolant diverted from the line to cool coolant flowing in the line. A method of cooling a medium is further discl

A system for cooling a medium includes a line having coolant flowing therein, and a sub-cooling unit in fluid communication with the line. The sub-cooling unit receives a portion of the coolant diverted from the line to cool coolant flowing in the line. A method of cooling a medium is further disclosed.

대표청구항 ▼

What is claimed is: 1. A system for cooling a medium, the system comprising: a line having coolant flowing therein; a main pump, in fluid communication with the line, adapted to pump the coolant in liquid state; a condensing unit, in fluid communication with the main pump by the line, adapted to co

What is claimed is: 1. A system for cooling a medium, the system comprising: a line having coolant flowing therein; a main pump, in fluid communication with the line, adapted to pump the coolant in liquid state; a condensing unit, in fluid communication with the main pump by the line, adapted to cool the coolant from a substantially vaporized state to a substantially liquid state; and a sub-cooling unit in fluid communication with the line between the condensing unit and the main pump, the sub-cooling unit receiving a portion of the coolant diverted from the line to cool coolant flowing in the line, wherein the sub-cooling unit comprises a sub-cooling expansion device in fluid communication with the line, and a sub-cooling heat exchanger, in fluid communication with the sub-cooling expansion device, to absorb heat from the coolant flowing in the line. 2. The system of claim 1, wherein the sub-cooling unit further comprises a sub-cooling pump, in fluid communication with the sub-cooling heat exchanger, to pump the portion of diverted coolant to the line. 3. The system of claim 1, wherein the sub-cooling heat exchanger comprises a co-axial condensing unit in fluid communication with the line and the sub-cooling unit. 4. The system of claim 1, wherein the portion of coolant diverted to the sub-cooling unit is less than 5% of the liquid coolant flowing through the line. 5. The system of claim 1, wherein the portion of coolant diverted to the sub-cooling unit is approximately 2% of the liquid coolant flowing through the line. 6. The system f claim: 1, further comprising a controller to control the operation of the cooling system. 7. The system of claim 6, wherein the controller controls the portion of coolant diverted from the line connecting the condensing unit to the main pump. 8. A system for cooling a medium, the system comprising: a line having coolant flowing therein; a main pump, in fluid communication with the line, adapted to pump the coolant in liquid state; a condensing unit, in fluid communication with the main pump by the line, adapted to cool the coolant from a substantially vaporized state to a substantially liquid state; and means for cooling the coolant flowing through the line by diverting a portion of coolant from the line between the condensing unit and the main pump and absorbing heat from the coolant flowing through the line with the portion of diverted coolant, wherein the means for cooling the coolant flowing through the line comprises a sub-cooling unit, in fluid communication with the line, the sub-cooling unit receiving the portion of the coolant diverted from the line, wherein the sub-cooling unit comprises a sub-cooling expansion device in fluid communication with the line, and a sub-cooling heat exchanger, in fluid communication with the sub-cooling expansion device, to absorb heat from the coolant flowing in the line. 9. The system of claim 8, wherein the sub-cooling unit further comprises a sub-cooling pump, in fluid communication with the sub-cooling heat exchanger, to pump the portion of diverted coolant to the line. 10. The system of claim 8, wherein the sub-cooling heat exchanger comprises a co-axial condensing unit in fluid communication with the line and the sub-cooling unit. 11. The system of claim 9, further comprising a controller to control the operation of the cooling system. 12. The system of claim 11, wherein the controller controls the portion of coolant diverted from the line connecting the condensing unit to the main pump. 13. The system of claim 8, wherein the portion of coolant diverted to the sub-cooling unit is less than 5% of the liquid coolant flowing through the line. 14. The system of claim 8, wherein the portion of coolant diverted to the sub-cooling unit is approximately 2% of the liquid coolant flowing through the line. 15. A cooling system comprising: a condensing unit adapted to cool coolant from a substantially vaporized state to a substantially liquid state; a main pump, in fluid communication with the condensing unit by a line, adapted to pump the coolant in a liquid state; and a sub-cooling unit in fluid communication with the condensing unit by a line, the sub-cooling unit receiving a portion of coolant diverted from the condensing unit to the main pump to cool the coolant flowing from the condensing unit the main pump, wherein the sub-cooling unit comprises a sub-cooling expansion device in fluid communication with the line, and a sub-cooling heat exchanger, in fluid communication with the sub-cooling expansion device, to absorb heat from the coolant flowing in the line. 16. The cooling system of claim 15, the sub-cooling unit further comprising a sub-cooling pump, in fluid communication with the sub-cooling heat exchanger and the condensing unit, adapted to pump the diverted coolant back to the condensing unit. 17. The cooling system of claim 15, wherein the sub-cooling heat exchanger comprises a co-axial condensing unit in fluid communication with the condensing unit and the sub-cooling unit. 18. The cooling system of claim 15, further comprising a controller to control the operation of the cooling system. 19. The cooling system of claim 18, wherein the controller controls the portion of coolant diverted from the condensing unit to the main pump. 20. The cooling system of claim 15, wherein the portion of coolant diverted to the sub-cooling unit is less than 5% of the liquid coolant flowing from the condensing unit to the main pump. 21. The cooling system of claim 15, wherein the portion of coolant diverted to the sub-cooling unit is approximately 2% of the liquid coolant flowing from the condensing unit to the main pump. 22. A cooling system comprising: a main pump adapted to pump coolant in liquid state; an expansion valve, in fluid communication with the main pump by a line, to reduce the pressure of the coolant; an evaporator, in fluid communication with the expansion valve by a line, to heat the coolant; a condensing unit, in fluid communication with the evaporator by a line, to cool the coolant from a substantially vaporized state to a substantially liquid state; and a sub-cooling unit, in fluid communication with the condensing unit by the line, the sub-cooling unit receiving a portion of the coolant diverted from the line to cool coolant flowing in the line, wherein the sub-cooling unit comprises a sub-cooling expansion device in fluid communication with the line; and a sub-cooling heat exchanger, in fluid communication with the sub-cooling expansion device, to absorb heat from the coolant flowing in the line. 23. The cooling system of claim 22, wherein the sub-cooling unit further comprises a sub-cooling pump, in fluid communication with the sub-cooling heat exchanger, to pump the portion of diverted coolant to the line. 24. The cooling system of claim 22, wherein the sub-cooling heat exchanger comprises a co-axial condensing unit in fluid communication with the line and the sub-cooling unit.