Internal bypass valve for a heat exchanger
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0635803
(1996-04-22)
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발명자
/ 주소 |
- Cameron Gordon M.,CAX
- Cooper Charles Guy,CAX
- Bellamy Gregory James,CAX
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출원인 / 주소 |
- Cecebe Technologies Inc., CAX
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인용정보 |
피인용 횟수 :
6 인용 특허 :
4 |
초록
▼
A shell and tube heat exchanger for exchanging heat between a shell side fluid and a tube side fluid has a longitudinally extending shell, a longitudinally extending tube bundle and one or more baffles positioned within the shell for directing the shell side fluid to flow across the tube bundle. One
A shell and tube heat exchanger for exchanging heat between a shell side fluid and a tube side fluid has a longitudinally extending shell, a longitudinally extending tube bundle and one or more baffles positioned within the shell for directing the shell side fluid to flow across the tube bundle. One or more valves is also provided within the shell of the heat exchanger. Each valve is operable between a first position and a second position and co-operates with a baffle for adjusting the flow of shell side fluid through the shell side of the exchanger. Each of the valves is controlled by an external actuator.
대표청구항
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[ We claim:] [1.] A shell and tube heat exchanger for exchanging heat between a shell side fluid and a tube side fluid comprising:(a) a longitudinally extending shell having an entry port and an exit port;(b) a plurality of tubes extending longitudinally in said shell, said tubes being positioned to
[ We claim:] [1.] A shell and tube heat exchanger for exchanging heat between a shell side fluid and a tube side fluid comprising:(a) a longitudinally extending shell having an entry port and an exit port;(b) a plurality of tubes extending longitudinally in said shell, said tubes being positioned to define a first longitudinally extending window;(c) a baffle for directing the shell side fluid to flow across said tubes, said baffle positioned within said shell between the entry port for the shell side fluid and the exit port for the shell side fluid, said first window extending through said baffle;(d) throttling valve positioned within said first longitudinally extending window and operable between a first open position and a second closed position, said throttling valve and said baffle are complimentarily positioned so that, when said throttling valve is in said closed positioned, said throttling valve and said baffle define a continuous surface extending across the interior of said shell such that, when said throttling valve is in said first open position, the shell side fluid may pass through said first window and as said throttling valve is moved towards said second closed position, the amount of shell side fluid passing through said heat exchanger is reduced and when said throttling valve is in said second closed position, the shell side fluid is prevented from passing through said heat exchanger; and,(e) an actuator coupled to said throttling valve for moving said throttling valve between said first and second positions. [14.] A method of operating a heat exchanger for exchanging heat between a shell side fluid and a tube side fluid having:(a) a longitudinally extending shell, said shell having an entry port for the shell side fluid and an exit port for the shell side fluid, said heat exchanger being connected to an external by pass for diverting at least a portion of the shell side fluid from said entry port and conveying the diverted shell side fluid to a position downstream from said exit port;(b) a plurality of tubes extending longitudinally in said shell and defining a tube bundle, said tubes being positioned to define a first longitudinally extending window;(c) a baffle positioned within said shell for directing the shell side fluid to flow across said tubes, said first window extending through said baffle ;(d) a throttling valve positioned within said first longitudinally extending window and operable between a first open position and a second closed position, said throttling valve cooperating with said baffle for adjusting the flow of the shell side fluid in said shell, whereby, as said valve is adjusted from said first position to said second position, the amount of shell side fluid passing through said external by pass increases and when said valve is in said second position, the shell side fluid is prevented from passing through said heat exchanger; and,(e) an actuator coupled to said throttling valve for moving said throttling valve between said first and second positions comprising the steps of:(f) monitoring the temperature of the shell side fluid at a predetermined point; and,(g) using said actuator to adjust the position of said throttling valve and therefore the flow of the shell side fluid across said tube bundle to maintain the temperature of the shell side fluid at said predetermined point at a predetermined level. The method as claimed in claim 14 wherein said external by pass includes an external by pass valve for regulating the volume of shell side fluid diverted by said by pass, said method further comprising the step of adjusting the position of said external by pass valve in combination with the adjustment of the position of said throttling valve to maintain the temperature of the shell side fluid at said predetermined point at a predetermined level. The method as claimed in claim 14 wherein said heat exchanger has a plurality of baffles and a plurality of throttling valves, said baffled and throttling valves positioned at discrete locations along the length of said heat exchanger, each of said throttling valve being independently operable. The method as claimed in claim 14 wherein said actuator is positioned external to said shell. The method as claimed in claim 14 wherein said actuator is positioned internal to said shell and said actuator is activated by a controller external to said heat exchanger. The method as claimed in claim 14 wherein said tubes are positioned to define a second longitudinally extending window within said shell, said second window extends through said baffle, said heat exchanger has a plurality of baffles positioned at discrete locations along the length of said heat exchanger, and said heat exchanger further comprises by a pass valve positioned within said second window, operable between a first open position and a second closed position and forming part of said baffle such that, when said by pass valve is in said second closed position, said baffle and said by pass valve define a continuous surface and the shell side fluid is deflected by said valve and said baffle to pass across said tubes towards said first window, and as said by pass valve is moved to said first open position, the amount of shell side fluid passing through said by pass valve from the upstream side of said baffle to the downstream side of said baffle increases; and step (g) includes adjusting the position of each of said throttling valve and said by pass valve to adjust the amount of shell side fluid passing through said external by pass.
이 특허에 인용된 특허 (4)
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Cameron Gordon M. (4 Wellesbourne Crescent Willowdale ; Ontario CAX M2H 1Y7), Distributor for packed tower.
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Myers Austin R. (Racine WI), Heat exchanger with fluid pressure relief means.
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Cameron Gordon M. (Willowdale CAX) Cooper Charles G. (Vancouver CAX) Bellamy Gregory J. (Vancouver CAX), Internal bypass valve for a heat exchanger.
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Cameron Gordon M. (4 Wellesbourne Cres. Willowdale ; Ontario CAX M2H 1Y7), Tube layout for heat exchanger.
이 특허를 인용한 특허 (6)
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Bostedo Robert ; Cunkelman Brian L., Aftercooler having bypass passage integrally formed therewith.
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Ungar, Gert; Ungar, Jürg Dieter, Apparatus and process for the synthesis of ammonia.
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Kuske, Andreas; Sommerhoff, Franz Arnd; Quix, Hans Guenter, Charge-air intercooler system with integrated heating device.
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Lopes, Luiz Antonio D.; Westlake, Lorraine J., Direct contact icemaker with chambered air cooling system.
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Anderson,George E., Heat exchanger with internal baffle and an external bypass for the baffle.
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Kenney, Benjamin A.; Gerges, Ihab Edward; Buckrell, Andrew, Manifold structure for re-directing a fluid stream.
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