Cold air refrigerating system and turboexpander turbine for this system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-017/04
F28B-009/00
출원번호
US-0168665
(2000-12-27)
우선권정보
RU-99127784 (1999-12-28)
국제출원번호
PCT/RU00/00532
(2000-12-27)
국제공개번호
WO01/48424
(2001-07-05)
발명자
/ 주소
Panin, Alexandr A.
Peshkov, Alexandr A.
Ravikovich, Jury A.
대리인 / 주소
Natter Seth
인용정보
피인용 횟수 :
3인용 특허 :
3
초록▼
An air-cooling device comprises compressor ( 1 ). Double cavity heat exchanger ( 2 ), turbo expander ( 6 ) and the freezing chamber ( 3 ) containing fan ( 5 ) and air cooler ( 4 ). Fan ( 7 ) is mounted on the same shaft with the turbo expander ( 6 ). The first cavities of the heat exchangers ( 9 and
An air-cooling device comprises compressor ( 1 ). Double cavity heat exchanger ( 2 ), turbo expander ( 6 ) and the freezing chamber ( 3 ) containing fan ( 5 ) and air cooler ( 4 ). Fan ( 7 ) is mounted on the same shaft with the turbo expander ( 6 ). The first cavities of the heat exchangers ( 9 and 2 ), moist separator ( 8 ) and the second cavity of the heat exchanger ( 2 ) are connected with the compressor ( 1 ) input in sequence. In the other appearance the device comprises compressor ( 44 ) and turbo expander ( 49 ), double cavity heat exchanger ( 45 ), freezing chamber ( 46 ) containing fan ( 48 ) and air cooler ( 47 ), double cavity vaporization heat exchanger ( 51 ) and moist separator ( 50 ). The first cavities of the vaporization heat exchangers ( 51 and 45 ), moist separator ( 50 , turbo expander ( 49 ), air cooler ( 47 ) and the second cavity of the heat exchanger ( 45 ) are in sequence connected with the compressor input ( 44 ). The bearing disk ( 67 ) of the turbine wheel ( 66 ) is constructed with inter blade canals ( 69 ) conjugates by means of the flutes ( 70 ) with the meridional disk surface ( 67 ). The canal surface ( 69 ) contain longitudinal micro canal ( 71 ). The radius of the micro canal ( 71 ) cross cut IS 0.1-1.0 of the radius (Rf) of the flute ( 70 ), the pitch (t) between the micro canals ( 71 ) is not more than the double radius (Rk) and the height (h) of the micro canal ( 710 is about 0.2-1.0 of the radius (Rk).
대표청구항▼
1. A cold air refrigeration system comprising a compressor ( 1 , 44 ) having an inlet and an outlet, a turbo expander ( 6 , 49 ), having a turbine wheel, a double cavity heat exchanger ( 2 , 45 ), said compressor being connected to said turbo expander, a fan ( 7 , 52 ) connected to said turbo expand
1. A cold air refrigeration system comprising a compressor ( 1 , 44 ) having an inlet and an outlet, a turbo expander ( 6 , 49 ), having a turbine wheel, a double cavity heat exchanger ( 2 , 45 ), said compressor being connected to said turbo expander, a fan ( 7 , 52 ) connected to said turbo expander, a vaporization heat exchanger ( 9 , 51 ) having a first cavity and a second cavity, a moisture separator ( 8 , 50 ) and a freezing chamber ( 3 , 46 ), the freezing chamber including a fan ( 5 , 48 ) and an air cooler ( 4 , 47 ), a first cavity of said heat exchanger ( 2 , 45 ), the first cavity of said vaporization heat exchanger ( 9 , 51 ), said moisture separator ( 8 , 50 ), said turbo expander ( 6 , 49 ), said air cooler ( 4 , 47 ) and a second cavity of said heat exchanger ( 2 , 45 ) being connected in series to the inlet of the compressor ( 1 , 44 ), the system further including and a water tank ( 10 , 55 ), the water tank being connected to the second cavity of the vaporization heat exchanger ( 9 , 51 ). 2. A cold air refrigeration system as constructed in accordance with claim 1 further including a shaft interconnecting the fan ( 7 ) and the turbo expander ( 6 ). 3. A cold air refrigeration system as constructed in accordance with claim 2 wherein the second cavity of the vaporization heat exchanger ( 9 ) is in communication with the atmosphere through the fan ( 7 ). 4. A cold air refrigeration system as constructed in accordance with claim 2 further including an ejector ( 12 ) having a passive nozzle, an active nozzle, and a diffuser, the system further including an adjustable valve ( 13 ) and a second moisture separator ( 14 ), the passive nozzle of the ejector being in communication with the atmosphere through the second cavity of the vaporization heat exchanger ( 9 ) and the adjustable valve ( 13 ), the active nozzle of the ejector being connected to the outlet of the compressor ( 1 ) and the diffuser of the ejector ( 12 ) being connected to the inlet of the fan ( 7 ) through the second moisture separator ( 14 ). 5. A cold air refrigeration system as constructed in accordance with claim 2 further including a second fan ( 15 ), the second fan ( 15 ) interconnecting the inlet and the outlet of the second cavity of the vaporization heat exchanger ( 9 ) to the atmosphere, the outlet of the first fan ( 7 ) being connected to the inlet of the first cavity of the vaporization heat exchanger ( 9 ). 6. A cold air refrigeration system as constructed in accordance with claim 5 further comprising two double-cavity heat exchangers ( 16 , 17 ), a third fan ( 18 ), and a fourth fan ( 19 ), and an adjustable valve ( 20 ), a first cavity of the first additional heat exchanger ( 16 ) being connected to the second cavity of the heat exchanger ( 2 ) and to the inlet of said compressor ( 1 ), a second cavity of said first additional heat exchanger ( 16 ) being in communication, through said third fan ( 18 ), with the atmosphere, a first cavity of said second additional heat exchanger ( 17 ) being connected to the first cavity of said vaporization heat exchanger ( 9 ) and to the outlet of said first fan ( 7 ), a second cavity of said second additional heat exchanger ( 17 ) being in communication, through said fourth fan ( 19 ), with the atmosphere, said adjustable valve ( 20 ) being interposed between the inlet and outlet of said compressor ( 1 ). 7. A cold air refrigeration system as constructed in accordance with claim 6 further comprising a fifth double-cavity heat exchanger ( 21 ) having a first cavity and second cavity, a fifth fan ( 22 ), a second moisture separator ( 23 ), the first cavity of said fifth heat exchanger ( 21 ) being connected to the outlet of said compressor ( 1 ) and, via said second moisture separator ( 23 ), to the inlet of said fan ( 7 ), a second cavity of said fifth heat exchanger ( 21 ) being in communication with the atmosphere via said fifth fan ( 22 ). 8. A cold air refrigeration system as constructed in acc ordance with claim 2 further comprising a sixth fan ( 39 ), a seventh fan ( 40 ) and a double-cavity heat exchanger ( 41 ), a second cavity of said adsorption moisture separator ( 9 ) being in communication with the atmosphere via said sixth fan ( 39 ), a first cavity of said heat exchanger ( 41 ) being connected to the inlet and outlet of said fan ( 7 ), a second cavity of said heat exchanger ( 41 ) being in communication with the atmosphere via said seventh fan ( 40 ). 9. A cold air refrigeration system as constructed in accordance with claim 2, further comprising a moisture separator ( 42 ) and a cold accumulator ( 43 ), both being positioned in series between said turbo expander ( 49 ) and said air cooler ( 47 ). 10. A cold air refrigeration system as constructed in accordance with claim 1 further including a shaft, the shaft interconnecting the compressor ( 44 ) and the turbo expander ( 49 ), the second cavity of the vaporization heat exchanger ( 51 ) being in communication with the atmosphere through the fan ( 52 ), the second cavity of the vaporization heat exchanger ( 51 ) including an outlet which is connected, through the heat exchanger ( 45 ) and the moisture separator ( 50 ) to the inlet of the turbo expander ( 49 ). 11. A cold air refrigeration system as constructed in accordance with claim 10, wherein said turbine wheel ( 66 ) comprises a bearing disk ( 67 ) provided with blades ( 68 ) and blade passages ( 69 ) defined by side surfaces of adjacent blades ( 68 ), hollow flutes ( 70 ) through which said side surfaces of said adjacent blades ( 68 ) are mated with a meridional surface of said disk ( 67 ), said meridional surface of said disk having longitudinal canals ( 71 ), the canals ( 71 ) having a cross-sectional area shaped as part of a circumference, the radius (Ru) of said part of a circumference being from 0.1 to 1.0 the radius (R r ) of said hollow flute ( 70 ), the pitch (t) of said canals ( 71 ) being not in excess of two said radii (R k ) and the height (h) of said canals ( 71 ) being from 0.2 to 1.0 times said radius (R k ). 12. A cold air refrigeration system as constructed in accordance with claim 1 further including a shaft, the shaft interconnecting the compressor ( 44 ) and the turbo expander ( 49 ), an electric motor ( 57 ) coupled to the shaft, whereby a common turbo expander and motor driven compressor system is provided. 13. A cold air refrigeration system as constructed in accordance with claim 12, wherein the turbo expander and motor driven compressor system comprises a body ( 58 ) accommodating said turbo expander ( 49 ), said electric motor ( 57 )) and said compressor ( 44 ), the electric motor ( 57 ) including an output shaft ( 59 ), the shaft ( 59 ) being journalled in a plurality of bearings ( 62 ), the turbine wheel ( 60 ) being mounted to the shaft ( 59 ) and a compressor impeller ( 61 ) mounted to the shaft ( 59 ), the body ( 58 ) including a space ( 63 ) defined between one of said bearing ( 62 ) and said electric motor ( 57 ), said space ( 63 ) being connected to the inlet of said compressor ( 44 ) through a bypass channel ( 64 ). 14. A cold air refrigeration system as constructed in accordance with claim 13, further comprising a variable throttle ( 65 ) disposed in said bypass channel ( 64 ). 15. A cold air refrigeration system as constructed in accordance with claim 1 further comprising an adsorption moisture separator ( 24 ) interposed between the first cavity of said vaporization heat exchanger ( 9 ) and the first cavity of said heat exchanger ( 2 ), a receiver ( 25 ) having an inlet and an outlet, a pair of adjustable valves ( 26 , 27 ), the inlet of said compressor ( 1 ) being connected to the first cavity of said heat exchanger ( 2 ) and being in communication with the atmosphere via said adjustable valve ( 26 ), a pair of check valves ( 28 , 29 ), a first of said check valves ( 28 ) and said adsorption moisture separator ( 24 ) being interconnected in series between the f irst cavity of said vaporization heat exchanger ( 9 ) and the first cavity of said heat exchanger ( 2 ), the outlet of said compressor ( 1 ) being connected to the inlet of the receiver ( 25 ), an outlet of the receiver ( 25 ) being connected, through said adjustable valve ( 27 ), between said check valve ( 28 ) and said adsorption moisture separator ( 24 ), said receiver ( 25 ) being in communication with the atmosphere via said check valve ( 29 ). 16. A cold air refrigeration system as constructed in accordance with claim 1 further comprising a double-cavity heat exchanger ( 30 , 53 ) and a further fan ( 31 , 54 ), a first cavity of said double cavity heat exchanger ( 30 , 53 ) being connected to the outlet of the compressor ( 1 , 44 ) and to the first cavity of said vaporization heat exchanger ( 9 , 51 ), a second cavity of said heat exchanger ( 30 , 53 ) communicating, via said fan ( 31 , 54 ) with the atmosphere. 17. A cold air refrigeration system as constructed in accordance with claim 16 further comprising a receiver ( 32 ), an adsorption moisture separator ( 33 ), a pair of check valves ( 34 , 35 ), a plurality of adjustable valves ( 36 , 37 , and 38 ), one adjustable valve ( 37 ) being interposed between the first cavity of said heat exchanger ( 2 ) and the inlet of said compressor ( 1 ), the outlet of the compressor ( 1 ) being connected, through said check valve ( 34 ), said receiver ( 32 ) and said adjustable valve ( 36 ), between said adsorption moisture separator ( 33 ) and said check valve ( 35 ), the inlet of said compressor ( 1 ) additionally being in communication with the atmosphere via said adjustable valve ( 38 ). 18. A cold air refrigeration system as constructed in accordance with claim 1, further comprising a moisture separator ( 42 ) and a cold accumulator ( 43 ), both being positioned in series between said turbo expander ( 6 ) and said air cooler ( 4 ).
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