IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0497222
(2002-11-29)
|
등록번호 |
US-7441589
(2008-10-28)
|
국제출원번호 |
PCT/US02/038254
(2002-11-29)
|
§371/§102 date |
20040902
(20040902)
|
국제공개번호 |
WO03/048659
(2003-06-12)
|
발명자
/ 주소 |
- Garrabrant,Michael A.
- Stout,Roger E.
- Klintworth, II,Michael W.
- Collet,Eric
|
출원인 / 주소 |
- Cooling Technologies, Inc.
|
대리인 / 주소 |
Kremblas, Foster, Phillips & Pollick
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
12 |
초록
▼
A waste heat source (100) is used to heat a high temperature heat transfer fluid which is used to heat an absorption heat transfer machine (10) having a generator (20), an absorber (30), a condenser (40), and an evaporator (50) operatively connected together. The high temperature heat transfer fluid
A waste heat source (100) is used to heat a high temperature heat transfer fluid which is used to heat an absorption heat transfer machine (10) having a generator (20), an absorber (30), a condenser (40), and an evaporator (50) operatively connected together. The high temperature heat transfer fluid can also be used to heat a load (190) such as a room space or a process. The waste heat source (100) can also be used to heat an intermediate heat transfer fluid, which can be used to heat a second load (175) such as a space, a process, or an absorption heat transfer machine. Novel flow control devices (70, 60) for controlling the flow of weak solution from generator (20) to absorber (30) or of refrigerant from condenser (40) to evaporator (50), respectively, are also described.
대표청구항
▼
What is claimed is: 1. An absorption, heat-transfer system comprising: a) a first absorption heat-transfer system comprising a first generator, an absorber, a condenser, and an evaporator operatively connected together; b) a first flow control device located between said generator and said absorber
What is claimed is: 1. An absorption, heat-transfer system comprising: a) a first absorption heat-transfer system comprising a first generator, an absorber, a condenser, and an evaporator operatively connected together; b) a first flow control device located between said generator and said absorber and controlling the flow of a weak solution from said generator to said absorber; c) a second flow control device located between said condenser and said evaporator and controlling the flow of a refrigerant from said condenser to said evaporator; d) a waste-heat source; e) a waste heat steam; f) a high-temperature heat exchanger; g) a solution pair in said first generator; h) a first heat exchange unit in said first generator; i) a first heating load; j) an operationally connected high-temperature heat-exchange loop comprising: 1) a first pump; 2) a second heat exchange unit in said high-temperature heat exchanger; 3) a high-temperature heat-transfer fluid; 4) said first heat exchange unit in said first generator; and 5) a third heat-exchange unit operationally connected to said high-temperature heat-exchange loop; k) said waste heat source passing said waste heat stream to said high-temperature heat exchanger for heating said solution pair in said first generator to a temperature of at least about 250�� F. (121��C.) via said first heat exchange unit in said generator, said first heat exchange unit operationally connected to said high-temperature heat-exchange loop with said second heat exchange unit in said high-temperature heat-exchange loop and in said high-temperature heat exchanger heating said high-temperature heat-transfer fluid with said waste heat stream from said waste-heat source; l) an intermediate-temperature heat exchanger; m) a second load; n) an operationally connected intermediate-temperature heat-exchange loop comprising: (1) a second pump; (2) a fourth heat exchange unit in said intermediate temperature heat exchanger; (3)a fifth heat-exchange unit for heating said second load via said waste heat stream emerging from said high-temperature exchanger; and (4) an intermediate heat-transfer fluid; o) said waste heat source passing said waste heat stream to said high-temperature heat exchanger for heating at least one of the following: (1) said first heating load via said third heat-exchange unit operationally connected to said high-temperature heat-exchange loop; and (2) said intermediate-temperature heat-exchange loop comprising said said fifth heat-exchange unit for heating said second load via said waste heat stream emerging from said high-temperature heat exchanger. 2. The absorption, heat-transfer system according to claim 1 wherein said solution pair in said first generator is heated to a temperature of at least about 300�� F. (149�� C.) via said heat exchange unit in said generator. 3. The absorption, heat-transfer system according to claim 1 wherein said solution pair in said first generator is heated to a temperature of at least about 350�� F. (177�� C.) via said heat exchange unit in said generator. 4. The absorption, heat-transfer system according to claim 1 wherein said solution pair in said generator is water and ammonia. 5. The absorption, heat-transfer system according to claim 1 further comprising a second heat source for heating said generator of said first absorption, heat-transfer machine. 6. The absorption, heat-transfer system according to claim 1 further comprising a first line for passing at least a portion of said high-temperature heat-transfer fluid to said heat exchange unit in said generator of said absorption heat-transfer machine and a second line for passing at least a portion of said high-temperature heat-transfer fluid to said third heat exchange unit for heating said first heating load. 7. The absorption, heat-transfer system according to claim 6 wherein said high-temperature heat transfer fluid is passed to said heat exchange unit in said first generator and to said third heat exchange unit via three-way valve. 8. The absorption; heat-transfer system according to claim 1 further comprising a thermal storage tank for storing said high-temperature heat-transfer fluid after heating by said waste-heat stream. 9. The absorption, heat-transfer system according to claim 1 wherein said high-temperature heat-transfer fluid is heated by said waste-heat stream in said high-temperature heat-exchanger via a line connected to said waste heat source, said line having a high-temperature heat-exchanger by-pass line. 10. The absorption, heat-transfer system according to claim 1 wherein said intermediate-temperature heat-transfer fluid is heated by said waste-heat stream in said intermediate-temperature heat-exchanger via a line connected to said high-temperature heat-exchanger, said line having an intermediate-temperature heat-exchanger by-pass line. 11. The absorption, heat-transfer system according to claim 1 with said waste-heat stream heating said intermediate-temperature heat-transfer fluid in said intermediate-temperature heat exchanger; said intermediate heat-transfer fluid heating said second load with said second load comprising at least one of the following: a) a space; b) a processing load; and c) a second absorption heat-transfer machine. 12. The absorption, heat-transfer system according to claim 11 with said intermediate heat-transfer fluid heating said space. 13. The absorption, heat-transfer system according to claim 11 with said intermediate heat-transfer fluid heating said processing load. 14. The absorption, heat-transfer system according to claim 11 with said intermediate heat-transfer fluid heating said second absorption heat-transfer machine. 15. The absorption, heat-transfer system according to claim 1 with said first flow control device comprising: a) a first restrictor receiving said weak solution from a first line connected to said generator and passing said weak solution to said absorber with a second line; b) a second restrictor located in said first line between said generator and said first restrictor; c) a weak solution, by-pass line around said first restrictor comprising an on-off flow device. 16. The absorption, heat-transfer system according to claim 15 wherein said on-off flow device is operated by a controller. 17. The absorption, heat-transfer system according to claim 16 wherein said controller is connected to an absorption cycle sensor. 18. The absorption, heat-transfer system according to claim 1 with said first flow control device comprising: a) a fixed restrictor receiving said weak solution from a first line connected to said generator and passing said weak solution to said absorber with a second line; b) a variable restrictor positioned in said first line between said generator and said first fixed restrictor. 19. The absorption, heat-transfer system according to claim 18 with said variable restrictor comprising: a) a housing having a cylindrical bore formed therein for receiving said weak solution at a first end and outputting said weak solution at a second end; b) a cylindrical piston with a first end and second end; 1) moveably mounted in said cylindrical bore and having a common longitudinal axis with said cylindrical bore; 2) having a bore formed therein to pass said weak solution from said first end to said second end; and 3) having a valve stem at said second end; said valve stem moveably engaging an orifice in said second end of said housing; and c) a helical spring positioned around said valve stem and contacting said second end of said piston at one end and a shoulder of said housing at a second end. 20. The absorption, heat-transfer system according to claim 1 with said second flow control device comprising: a) a thermal expansion valve receiving said refrigerant from a first line connected to said condenser and passing said refrigerant to said evaporator with a second line; and b) a fixed restrictor located in said first line between said condenser and said thermal expansion valve to reduce the inlet pressure to said thermal expansion valve. 21. The absorption, heat-transfer system according to claim 1 with said second flow control device comprising: a) a thermal expansion valve receiving said refrigerant from a first line connected to said condenser and passing said refrigerant to said evaporator with a second line; and b) a refrigerant, by-pass line around said thermal expansion valve comprising a fixed restrictor for passing a fixed amount of refrigerant from said condenser to said evaporator. 22. A weak-solution flow control device in a first absorption heat-transfer system comprising a generator, an absorber, a condenser, and an evaporator operatively connected together, said flow control device comprising: a) a first restrictor receiving a weak solution from a first line connected to said generator and passing said weak solution to said absorber with a second line; b) a second restrictor located in said first line between said generator and said first restrictor; and c) a weak solution, by-pass line around said second restrictor, said by-pass line connected at one end to said first line upstream of said second restrictor and at a second end to said first line downstream of said second restrictor and upstream of said first restrictor and comprising an on-off flow device. 23. The weak-solution flow control device according to claim 22 wherein said on-off flow device is operated by a controller. 24. The weak solution flow control device according to claim 23 wherein said controller is connected to at least one absorption cycle sensor. 25. A weak-solution flow control device in an first absorption heat-transfer system comprising a generator, an absorber, a condenser, and an evaporator operatively connected together, said flow control device comprising: a) a fixed restrictor receiving a weak solution from a first line connected to said generator and passing said weak solution to said absorber with a second line; b) a variable restrictor positioned in said first line between said generator and said first fixed restrictor, with said varible restrictor comprising: 1) a housing having a cylindrical bore formed therein for receiving said weak solution at a first end and outputting said weak solution at a second end; 2) a cylindrical piston with a first end and second end; said cylindrical piston: a) moveably mounted in said cylindrical bore and having a common longitudinal axis with said cylindrical bore; b)having a bore formed therein to pass said weak solution from said first end to second end; and c) having a valve stem at said second end; said valve stem moveably engaging an orifice in said second end of said housing; and 3) a helical spring positioned around said valve stem and contacting said second end of said piston at one end and a shoulder of said housing at a second end. 26. A refrigerant flow control device in a first absorption heat-transfer system comprising a generator, an absorber, a condenser, and an evaporator operatively connected together, and flow control device comprising: a) a thermal expansion valve receiving a refrigerant from a first line connected to said condenser and passing said refrigerant to said evaporator with a second line; and b) a fixed restrictor located in said first line between said condenser and said thermal expansion valve to reduce the inlet pressure to said thermal expansion valve. 27. A refrigerant flow control device in a first absorption heat-transfer system comprising a generator, an absorber, a condenser, and an evaporator operatively connected together, said flow control device comprising: a) a thermal expansion valve receiving a refrigerant from a first line connected to said condenser and passing said refrigerant to said evaporator with a second line; and b) a refrigerant, by-pass line around said thermal expansion valve comprising a fixed restrictor for passing a fix amount of refrigerant from said condenser to said evaporator.
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