[특허]Energy recovery enhanced condenser reactivated desiccant refrigerant dehumidifier

Munters Corporation

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Energy recovery enhanced condenser reactivated desiccant refrigerant dehumidifier

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-017/06
미국특허분류(USC)	062/094; 062/271; 062/515
출원번호	US-0745433 (2009-02-13)
등록번호	US-8631661 (2014-01-21)
국제출원번호	PCT/US2009/033988 (2009-02-13)
§371/§102 date	20100806 (20100806)
국제공개번호	WO2009/102910 (2009-08-20)
발명자 / 주소	Teige, Peter Hayes, Michael
출원인 / 주소	Munters Corporation
대리인 / 주소	Fitzpatrick, Cella, Harper & Scinto
인용정보	피인용 횟수 : 5 인용 특허 : 15

초록
▼

A method and apparatus for conditioning ambient air for use in an enclosure is disclosed which cools the ambient supply air stream in sensible energy recovery device or cools and dehumidifies the ambient supply air stream in an enthalpy energy recovery device. The thus cooled air is then cooled by a cooling coil of a refrigerant cooling system to reduce its temperature and humidity. The thus cooled and dehumidified air is then passed through a segment of a rotating desiccant wheel or through a different type of desiccant dehumidification device under conditions which reduce its moisture content and increases its temperature. The supply air is then delivered from the desiccant wheel to the enclosure. The desiccant wheel is regenerated by heating a separate regeneration air stream, provided by the exhaust air from the space and using the condensing coil of the refrigerant system to increase the regeneration air stream temperature. The thus heated regeneration air stream is then passed through another segment of the rotating desiccant wheel to regenerate the wheel and is exhausted to the atmosphere.

대표
청구항
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1. A method for supplying conditioned air to an enclosure comprising the steps of: a) conditioning an ambient air stream by: i) first cooling the ambient supply air stream to a first reduced temperature in an energy recovery device;ii) then passing the cooled ambient supply air stream through a refrigeration system cooling coil to reduce the temperature of the ambient air supply stream to a second reduced temperature;iii) thereafter dehumidifying the thus cooled ambient supply air stream in a desiccant dehumidification device; andiv) delivering the thus cooled and dried air to an enclosure; whileb) conditioning and using an exhaust air stream from an enclosure by: i) first increasing the temperature of the exhaust air stream by passing it through said energy recovery device,ii) then passing the exhaust air stream at said increased temperature over a condenser coil of the refrigeration system to raise its temperature and decrease its relative humidity;iii) thereafter passing the heated exhaust air stream through a regeneration portion of the desiccant dehumidification device to regenerate the desiccant device, and lower the temperature and increase the moisture content of the exhaust air stream; andiv) then exhausting the exhaust air stream to the atmosphere. 2. The method as defined in claim 1 including the step of passing the exhaust air stream from the desiccant device over a second condenser coil to further increase its temperature before exhausting the exhaust air stream to the atmosphere. 3. The method as defined in claim 1 wherein said step of conditioning an ambient air stream includes the step of reducing the moisture content of the ambient air stream while cooling the ambient air stream to said first reduced temperature in said energy recovery device. 4. The method as defined in claim 1 wherein said step of conditioning an ambient air stream includes the step of reducing the moisture content of the ambient air stream while passing it through the refrigeration cooling coil. 5. The method as defined in claim 1 wherein said step of conditioning the exhaust air stream includes the step of reducing the moisture content of the exhaust air stream while increasing its temperature before passing it over a condenser coil of a refrigeration system. 6. The method as described in any one of claims 1-5 including the step of providing additional evaporative cooling in the exhaust air stream between the desiccant device and the second condenser coil. 7. The method as described in any one of claims 1-5 including the steps of using a desiccant wheel dehumidification device and selectively changing the speed of rotation of the desiccant wheel device to modulate the desiccant effect on the air stream to provide capacity control. 8. The method as described in any one of claims 1-5 including the step of selectively bypassing a portion of the supply air stream around the desiccant device to modulate the desiccant effect on the air stream. 9. The method of any of claims 1-5 including the step of selectively bypassing a portion of the exhaust air stream around the desiccant device to modulate the desiccant effect on the air stream. 10. The method of any of claims 1-5 including the step of selectively bypassing a portion of both the supply and exhaust air streams around the desiccant device to modulate the desiccant effect on the air stream. 11. The method of claim 6 including the step of recovering condensate from a cooling coil and pumping said condensate to the evaporative cooling device to allow for evaporative cooling effect. 12. The method as described in any of claims 1-5 including the step of providing additional cooling to the supply air after it passes through the desiccant dehumidification device to provide cooling capacity to the enclosure. 13. The method as described in any of claims 1-5 including the step of passing said ambient and exhaust air streams through said desiccant device in opposite directions. 14. A method for supplying conditioned air to an enclosure comprising the steps of: a) conditioning an ambient air stream by: i) first cooling the ambient supply air stream in an energy recovery device to reduce its temperature and moisture content;ii) then passing the cooled and dried ambient air through a refrigeration system cooling coil to further reduce the temperature and moisture content of the ambient air to a predetermined condition,iii) thereafter passing the ambient supply air stream through a segment of a desiccant dehumidification device to increase its temperature and decrease its moisture content;iv) then delivering the thus treated ambient air to said enclosure; andb) simultaneously conditioning and using an exhaust air stream from an enclosure, by: i) first passing the exhaust air stream through said energy recovery device to increase its temperature and moisture content,ii) then passing the exhaust air over a condenser coil in said refrigeration system to raise its temperature while decreasing its relative humidity,iii) thereafter passing the thus heated exhaust air through another segment of said desiccant dehumidification device to regenerate the desiccant device and lower the temperature and increase the moisture content of the exhaust air stream; andiv) then exhausting the exhaust air stream to the atmosphere. 15. The method as described in claim 14 including the step of passing the exhaust air stream over a second condenser coil to further increase its temperature before exhausting the exhaust air stream to the atmosphere. 16. The method as described in claim 14 including the step of providing additional evaporative cooling in the exhaust air stream between the desiccant device and the second condenser coil. 17. The method as described in claim 14 including the steps of using a desiccant wheel dehumidification device and selectively changing the speed of rotation of the desiccant wheel device to modulate the desiccant effect on the air stream to provide capacity control. 18. The method as described in claim 14 including the step of selectively bypassing a portion of the supply air stream around the desiccant device to modulate the desiccant effect on the air stream. 19. The method of claim 14 including the step of selectively bypassing a portion of the exhaust air stream around the desiccant device to modulate the desiccant effect on the air stream. 20. The method of claim 14 including the step of selectively bypassing a portion of both the supply and exhaust air streams around the desiccant device to modulate the desiccant effect on the air stream. 21. The method of claim 14 including the step of recovering condensate from a cooling coil and pumping said condensate to the evaporative cooling device to allow for evaporative cooling effect. 22. The method as described in claim 14 including the step of providing additional cooling to the supply air after it passes through the dehumidification desiccant device to provide cooling capacity to the enclosure. 23. The method as described in claim 14 including the step of passing said ambient and exhaust air streams through said desiccant device in opposite directions. 24. A method for supplying conditioned air to an enclosure comprising the steps of: a) conditioning an ambient air having a temperature in the range of about 60° F. to about 105° F. and a moisture content of between 70 to 180 grains per pound by: i) first supplying said ambient air stream to an energy recovery device to reduce the temperature and moisture content of the ambient air stream,ii) then passing the cooled and dried ambient air through a refrigeration system cooling coil to further reduce the temperature and moisture content of the ambient air to a predetermined condition,iii) thereafter passing the air through a segment of a desiccant dehumidification device to increase its temperature to a predetermined temperature range of about 70° F. to about 85° F. and decreasing its moisture content to about 45 to 65 grains per pound, andiv) then delivering the thus treated air to said enclosure; andb) simultaneously conditioning and using an exhaust air stream from an enclosure by: i) exhausting air from the enclosure,ii) then first passing the exhausted air through said energy recovery device to increase its temperature and moisture content,iii) thereafter passing the exhaust air over a condenser coil in said refrigeration system to raise its temperature while decreasing its relative humidity,iv) then passing the thus heated exhaust air through another segment of said desiccant dehumidification device to regenerate the desiccant device and lower the temperature and increase the moisture content of the exhaust air stream; andv) then exhausting the exhausted air stream to the atmosphere. 25. The method as described in 24 including the step of passing the exhaust air stream over a second condenser coil to further increase its temperature before the exhaust air is exhausted to the atmosphere. 26. The method as described in claim 24 including the step of providing additional evaporative cooling in the exhaust air stream between the desiccant device and the second condenser coil. 27. The method as described in claim 24 including the steps of using a desiccant wheel dehumidification device and selectively changing the speed of rotation of the desiccant device to modulate the desiccant effect on the air stream to provide capacity control. 28. The method as described in claim 24 including the step of selectively bypassing a portion of the supply air stream around the desiccant device to modulate the desiccant effect on the air stream. 29. The method of claim 24 including the step of selectively bypassing a portion of the exhaust air stream around the desiccant device to modulate the desiccant effect on the air stream. 30. The method of claim 24 including the step of selectively bypassing a portion of both the supply and exhaust air streams around the desiccant device to modulate the desiccant effect on the air stream. 31. The method of claim 26 including the step of recovering condensate from a cooling coil and pumping said condensate to the evaporative cooling device to allow for evaporative cooling effect. 32. The method as described in claim 24 including the step of providing additional cooling to the supply air after it passes through the dehumidification desiccant device to provide cooling capacity to the enclosure. 33. The method as described in claim 24 including the step of passing said ambient and exhaust air streams through said desiccant device in opposite directions. 34. A device for supplying conditioned air to an enclosure comprising: means for recovering thermal energy from an ambient supply air stream to cool the supply air stream to a first reduced temperature;a refrigeration system including an evaporator coil for receiving the supply air stream from the thermal energy recovery means to reduce the temperature of the supply air stream to a second reduced temperature;desiccant means for dehumidifying the cooled ambient supply air stream from the evaporator coil; andmeans for delivering the thus cooled and dried air to an enclosure;said means for recovering thermal energy from an ambient air stream being adapted to receive and increase the temperature of an exhaust air stream from an enclosure;said refrigeration system including a condenser coil for receiving the exhaust air stream from said thermal energy recovery means and raising its temperature and decreasing its relative humidity; andsaid desiccant dehumidifying means including a regeneration portion for receiving exhaust air from said condenser coil for regenerating the desiccant device, and lowering the temperature and increasing the moisture content of the exhaust air stream. 35. The device as defined in claim 34 wherein said refrigeration system includes a second condenser coil for receiving the exhaust air stream from the desiccant dehumidifying means to further increase its temperature. 36. The device as defined in claim 35 wherein said means for recovering thermal energy reduces the moisture content of the ambient air stream while cooling the ambient air stream to said first reduced temperature. 37. The device as defined in claim 35 wherein said evaporator coil of the refrigeration system condenses moisture in the supply air stream to reduce the moisture content of the ambient air stream. 38. The device as defined in claim 35 wherein said means for recovering thermal energy increases the moisture content of the exhaust air stream while increasing its temperature. 39. The device as defined in any one of claims 35-38 including evaporative cooling means in the exhaust air stream between the desiccant dehumidifying means and the second condenser coil. 40. The device as described in any one of claims 35-38 wherein said desiccant dehumidifying means is a desiccant wheel dehumidification device. 41. The device as described in claim 40 including means for selectively changing the speed of rotation of the desiccant wheel device to modulate the desiccant effect on the air stream to provide capacity control. 42. The device as described in any one of claims 35-38 including means for selectively bypassing a portion of the supply air stream around the desiccant device to modulate the desiccant effect on the air stream. 43. The device of any of claims 35-38 including means for selectively bypassing a portion of the exhaust air stream around the desiccant device to modulate the desiccant effect on the air stream. 44. The device of any of claims 35-38 including means for selectively bypassing a portion of both the supply and exhaust air streams around the desiccant device to modulate the desiccant effect on the air stream. 45. The device of claim 39 including means for recovering condensate from a cooling coil and pumping said condensate to the evaporative cooling device to allow for evaporative cooling effect. 46. The device as described in any of claims 35-38 including means for providing additional cooling to the supply air after it passes through the desiccant dehumidification device to provide cooling capacity to the enclosure.

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이 특허를 인용한 특허 피인용횟수: 5

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Energy recovery enhanced condenser reactivated desiccant refrigerant dehumidifier

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이 특허에 인용된 특허 (15)

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Energy recovery enhanced condenser reactivated desiccant refrigerant dehumidifier

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