IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0567026
(2006-12-05)
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등록번호 |
US-7418825
(2008-09-02)
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발명자
/ 주소 |
|
출원인 / 주소 |
- American Power Conversion Corporation
|
대리인 / 주소 |
Townsend and Townsend and Crew LLP
|
인용정보 |
피인용 횟수 :
50 인용 특허 :
42 |
초록
▼
A system for cooling gas heated by passing the gas over heat-producing equipment to cool the equipment comprises a heat exchanger including a first heat transfer mechanism configured to transfer heat from the heated gas to a first coolant, and a first condensing module connected for fluid communicat
A system for cooling gas heated by passing the gas over heat-producing equipment to cool the equipment comprises a heat exchanger including a first heat transfer mechanism configured to transfer heat from the heated gas to a first coolant, and a first condensing module connected for fluid communication with the heat exchanger and including second and third heat transfer mechanisms, the first condensing module being configured to transfer heat through the second and third heat transfer mechanisms from the first coolant to second and third coolants in the second and third heat transfer mechanisms, respectively.
대표청구항
▼
What is claimed is: 1. A system for cooling gas heated by heat-producing electronic equipment, the system comprising: a heat exchanger configured to transfer heat from the heated gas to a first coolant; a first cooling module connected for fluid communication with the heat exchanger and including a
What is claimed is: 1. A system for cooling gas heated by heat-producing electronic equipment, the system comprising: a heat exchanger configured to transfer heat from the heated gas to a first coolant; a first cooling module connected for fluid communication with the heat exchanger and including a first condenser configured to cool and condense incoming first coolant from vapor to liquid, the first cooling module being configured to transfer heat from the first coolant to a second coolant to cool the first coolant; a second cooling module connected for fluid communication with the heat exchanger and including a second condenser configured to cool and condense incoming first coolant from vapor to liquid, the second cooling module being configured to transfer heat from the first coolant to a third coolant to cool the first coolant; and a condenser-charge controller configured to regulate a first coolant liquid level in the first condenser. 2. The system of claim 1 wherein the condenser-charge controller comprises first and second condenser-charge controller subsystems connected and configured to control liquid levels in the first and second condensers, respectively. 3. The system of claim 2 wherein the first and second subsystems each include a liquid level sensor configured to determine a liquid level in the respective condenser, a pump, and a controller coupled to the pump and the liquid level sensor and configured to regulate the pump to affect the corresponding liquid level. 4. The system of claim 3 wherein the liquid level sensor is a pressure differential sensor and wherein the cooling module includes a coolant container connected to the condenser and the pump and the liquid level sensor is connected to the coolant container to determine the liquid level in the coolant container, the liquid level in the coolant container being related to the liquid level of the condenser. 5. The system of claim 3 wherein the first and second cooling modules further comprise: a container connected to the condenser and configured to store the first coolant; a pump connected to the container and configured to pump the first coolant from the container; a purge mechanism connected to the pump; a purge controller coupled to the purge mechanism and configured to actuate the purge mechanism to purge at least some of the first coolant pumped by the pump; a fill mechanism connected to the container; and a fill controller coupled to the fill mechanism and configured to actuate the fill mechanism to supply liquid first coolant to the container. 6. The system of claim 5 wherein the purge controller is configured to actuate the purge mechanism if the pump is operating at about full capacity and the liquid level of the container rises above an upper threshold level and/or more than a first threshold amount. 7. The system of claim 5 wherein the fill controller is configured to actuate the fill mechanism if the pump is operating at about minimum capacity and the liquid level of the container drops below a lower threshold level and/or more than a second threshold amount. 8. A system for cooling gas heated by passing the gas over heat-producing equipment to cool the equipment, the system comprising: a heat exchanger including a heat exchanger heat transfer mechanism configured to transfer heat from the heated gas to a heat exchanger coolant; a first condensing module connected for fluid communication with the heat exchanger and including a first heat transfer mechanism, the first condensing module being configured to transfer heat through the first heat transfer mechanism from the heat exchanger coolant to a first coolant in the first heat transfer mechanism; a second condensing module connected for fluid communication with the heat exchanger and including a second heat transfer mechanism, the second condensing module being configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a second coolant in the second heat transfer mechanism; and a processor coupled to the first and second condensing modules and configured to assign a cooling task to each of the condensing modules based upon expected cooling demand for the heat exchanger coolant and cooling capacities providable by at least the first and second condensing modules; wherein the processor is configured to assign the first condensing module as a primary module for cooling the heat exchanger coolant, to assign the second condensing module as a lag module for cooling the heat exchanger coolant, if the expected cooling demand exceeds a cooling capacity providable by the first condensing module, and to assign the second condensing module as a redundant module if the cooling capacity of the first condensing module plus the cooling capacity of any lag condensing modules is at least as great as the expected cooling demand, the redundant module being designated for use in cooling a backup refrigerant if the primary module and any lag modules are operational and for cooling the heat exchanger coolant if the primary module or any lag modules are not operational. 9. The system of claim 8 wherein the first and second condensing modules are coupled in parallel through a single coolant loop to the heat exchanger. 10. The system of claim 8 wherein the primary condensing module is used to cool the heat exchanger coolant unless the primary condensing module is inoperative, the lag module, if any, is used to cool the heat exchanger coolant if the cooling demand exceeds the cooling capacity of the primary module and any other lag module, and the redundant module, if any, is used to cool the heat exchanger coolant if any of the primary and lag, if any, modules is inoperative and the cooling demand exceeds the cooling capacity of the operative primary and lag, if any, modules, and is used to produce ice if the cooling capacity of the operative primary and lag, if any, modules at least meets the cooling demand. 11. The system of claim 8 wherein the first and second condensing modules each have a cooling capacity that is no greater than an expected cooling demand for the heat exchanger coolant. 12. The system of claim 8 wherein the first and second condensing modules each have a cooling capacity that is at least as great as an expected cooling demand for the heat exchanger coolant. 13. The system of claim 8 wherein the second heat transfer mechanism is further configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a third coolant in the second heat transfer mechanism. 14. A system for cooling gas heated by passing the gas over heat-producing equipment to cool the equipment, the system comprising: a heat exchanger including a heat exchanger heat transfer mechanism configured to transfer heat from the heated gas to a heat exchanger coolant; a first condensing module connected for fluid communication with the heat exchanger and including a first heat transfer mechanism, the first condensing module being configured to transfer heat through the first heat transfer mechanism from the heat exchanger coolant to a first coolant in the first heat transfer mechanism; and a second condensing module connected for fluid communication with the heat exchanger and including a second heat transfer mechanism, the second condensing module being configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a second coolant in the second heat transfer mechanism; wherein the system is configured to use excess cooling capacity of the second condensing module to produce ice for use in cooling the heat exchanger coolant if the first condensing module is inoperative. 15. The system of claim 14 wherein the second heat transfer mechanism is further configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a third coolant in the second heat transfer mechanism. 16. A system for cooling gas heated by passing the gas over heat-producing equipment to cool the equipment, the system comprising: a heat exchanger including a heat exchanger heat transfer mechanism configured to transfer heat from the heated gas to a heat exchanger coolant; a first condensing module connected for fluid communication with the heat exchanger and including a first heat transfer mechanism, the first condensing module being configured to transfer heat through the first heat transfer mechanism from the heat exchanger coolant to a first coolant in the first heat transfer mechanism; a second condensing module connected for fluid communication with the heat exchanger and including a second heat transfer mechanism, the second condensing module being configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a second coolant in the second heat transfer mechanism, wherein the second heat transfer mechanism is further configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a third coolant in the second heat transfer mechanism, wherein the second heat transfer mechanism is further configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a third coolant in the second heat transfer mechanism; and an ice storage tank connected to the second heat transfer mechanism, wherein the second condensing module includes a battery and a pump that is connected to the battery and the ice storage tank, and wherein the battery is configured to power the pump and the pump is connected and configured to circulate the third coolant between the second heat transfer mechanism and the ice storage tank to cool the third coolant with the ice and to cool the heat exchanger coolant with the third coolant. 17. The system of claim 16 further comprising a processor coupled to the first and second condensing modules and configured to assign a cooling task to each of the condensing modules based upon expected cooling demand for the heat exchanger coolant and cooling capacities providable by at least the first and second condensing modules. 18. The system of claim 16 wherein the second heat transfer mechanism is further configured to transfer heat through the second heat transfer mechanism from the heat exchanger coolant to a third coolant in the second heat transfer mechanism. 19. The system of claim 13 a processor coupled to the first and second condensing modules and configured to assign a cooling task to each of the condensing modules based upon expected cooling demand for the heat exchanger coolant and cooling capacities providable by at least the first and second condensing modules.
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