Energy recovery apparatus for a refrigeration system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-015/10
F02C-006/00
H02K-007/18
H02P-009/04
F25B-011/02
F25B-011/00
F25B-011/04
출원번호
US-0215329
(2014-03-17)
등록번호
US-9134049
(2015-09-15)
발명자
/ 주소
Post, Steven W.
Garrison, Bobby D.
출원인 / 주소
Regal Beloit America, Inc.
대리인 / 주소
Thompson Coburn LLP
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
An energy recovery apparatus for use in a refrigeration system, comprises an intake port, a nozzle, a turbine and a discharge port. The intake port is adapted to be in fluid communication with a condenser of a refrigeration system. The nozzle is configured to expand refrigerant discharged from the c
An energy recovery apparatus for use in a refrigeration system, comprises an intake port, a nozzle, a turbine and a discharge port. The intake port is adapted to be in fluid communication with a condenser of a refrigeration system. The nozzle is configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the nozzle. The turbine is positioned relative to the nozzle and configured to be driven by refrigerant discharged from the nozzle. The discharge port is downstream of the turbine and is configured to be in fluid communication with an evaporator of the refrigeration system.
대표청구항▼
1. A refrigeration system comprising: an evaporator comprising an intake port and a discharge port, the evaporator being configured to evaporate a cold refrigerant from a liquid-vapor state to a vapor state;a compressor comprising an intake port and a discharge portion, the intake port of the compre
1. A refrigeration system comprising: an evaporator comprising an intake port and a discharge port, the evaporator being configured to evaporate a cold refrigerant from a liquid-vapor state to a vapor state;a compressor comprising an intake port and a discharge portion, the intake port of the compressor being in fluid communication with the discharge port of the evaporator, the compressor being configured to receive refrigerant discharged from the evaporator and compress the refrigerant to an elevated, sub-critical pressure;a condenser comprising an intake port and a discharge port, the intake port of the condenser being in fluid communication with the discharge port of the compressor, the condenser being configured to receive refrigerant discharged from the compressor and condense the refrigerant discharged from the compressor to one of a saturated-liquid state, a liquid state cooler than the saturated-liquid state, and a liquid-vapor state near the saturated-liquid state;an energy recovery apparatus comprising an intake port and a discharge port, the intake port of the energy recovery apparatus being in fluid communication with the discharge port of the condenser, the discharge port of the energy recovery apparatus being in fluid communication with the intake port of the evaporator, the energy recovery apparatus further comprising a nozzle, a turbine, and a generator, the nozzle being configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the nozzle, the turbine being positioned and configured to be driven by refrigerant discharged from the nozzle, the discharge port of the energy recovery apparatus being downstream of the turbine, the generator being coupled to the turbine and driven by the turbine, the generator being configured to produce electricity as a result of the turbine being driven by refrigerant discharged from the nozzle. 2. A refrigeration system as set forth in claim 1 wherein the energy recovery apparatus further comprising a housing encompassing the turbine and the generator. 3. A method comprising operating a refrigerant system as set forth in claim 1 in a manner such that refrigerant enters the nozzle in a liquid state and is discharged from the nozzle in a liquid-vapor state. 4. An energy recovery apparatus for use in a refrigeration system, the refrigeration system comprising an evaporator, a compressor and a condenser, the evaporator being configured to evaporate a cold refrigerant from a liquid-vapor state to a vapor state, the compressor being configured to receive refrigerant discharged from the evaporator and compress the refrigerant to an elevated, sub-critical pressure, the condenser being configured to receive refrigerant discharged from the compressor and condense the refrigerant to one of a saturated-liquid state, a liquid state cooler than the saturated-liquid state, and a liquid-vapor state near the saturated-liquid state, the energy recovery apparatus comprising: an intake port adapted to be in fluid communication with the condenser;a discharge port adapted to be in fluid communication with the evaporator;a nozzle adapted and configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the nozzle; anda turbine positioned relative to the nozzle and configured to be driven by refrigerant discharged from the nozzle, the discharge port of the energy recovery apparatus being downstream of the turbine; anda generator coupled to the turbine and configured to be driven by the turbine, the generator being configured to produce electricity as a result of the turbine being driven by refrigerant discharged from the nozzle. 5. An energy recovery apparatus as set forth in claim 4 wherein the nozzle is shaped and configured such that refrigerant entering the nozzle in a liquid state is expanded by the nozzle and discharged from the nozzle in a liquid-vapor state. 6. An energy recovery apparatus as set forth in claim 4 wherein the turbine comprises a radial flow turbine having a turbine wheel rotatable about a turbine axis and at least one row of turbine blades with each turbine blade of said at least one row of turbine blades being radially spaced from the turbine axis, the turbine blades of said at least one row of turbine blades being configured to rotate with the turbine wheel. 7. An energy recovery apparatus as set forth in claim 6 wherein the nozzle and turbine are arranged and positioned relative to each other in a manner such that refrigerant discharged from the nozzle is discharged in a region radially inward of and toward said at least one row of turbine blades. 8. An energy recovery apparatus as set forth in claim 7 wherein the turbine includes only one row of turbine blades. 9. An energy recovery apparatus as set forth in claim 6 wherein said at least one row of turbine blades comprises a plurality of rows of turbine blades. 10. An energy recovery apparatus as set forth in claim 9 further comprising at least one stationary row of turbine blades. 11. An energy recovery apparatus as set forth in claim 6 wherein said turbine comprises a multi-stage turbine. 12. An energy recovery apparatus as set forth in claim 6 wherein the nozzle and turbine are arranged and positioned relative to each other in a manner such that refrigerant discharged from the nozzle is discharged in a region radially outward of and toward said at least one row of turbine blades. 13. A method comprising operatively coupling the discharge port of an energy recovery apparatus as set forth in claim 4 to an evaporator of a refrigeration system such that the discharge port of the energy recovery apparatus is in fluid communication with the evaporator. 14. A method comprising instructing a user to place an energy recovery apparatus as set forth in claim 4 in fluid communication with an evaporator of a refrigeration system. 15. A method comprising selling an energy recovery apparatus as set forth in claim 4 and including with the energy recovery apparatus indicia that the energy recovery apparatus is to be placed in fluid communication with an evaporator of a refrigeration system. 16. A method comprising instructing a user to place an energy recovery apparatus as set forth in claim 4 in fluid communication with a refrigeration line of a refrigeration system. 17. A method comprising inducing a user to place an energy recovery apparatus as set forth in claim 4 in fluid communication with a refrigeration line of a refrigeration system. 18. A method comprising inducing a user to place an energy recovery apparatus in fluid communication with a refrigeration line of a refrigeration system, the refrigeration system comprising an evaporator, a compressor and a condenser, the evaporator being configured to evaporate a cold refrigerant from a liquid-vapor state to a vapor state, the compressor being configured to receive refrigerant discharged from the evaporator and compress the refrigerant to an elevated, sub-critical pressure, the condenser being configured to receive refrigerant discharged from the compressor and condense the refrigerant to one of a saturated-liquid state, a liquid state cooler than the saturated-liquid state, and a liquid-vapor state near the saturated-liquid state, the energy recovery apparatus comprising: an intake port adapted to be in fluid communication with the condenser;a discharge port adapted to be in fluid communication with the evaporator;a nozzle adapted and configured to expand refrigerant discharged from the condenser and increase velocity of the refrigerant as it passes through the nozzle; anda turbine positioned relative to the nozzle and configured to be driven by refrigerant discharged from the nozzle, the discharge port of the energy recovery apparatus being downstream of the turbine; anda generator coupled to the turbine and configured to be driven by the turbine, the generator being configured to produce electricity as a result of the turbine being driven by refrigerant discharged from the nozzle.
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