Dual-circuit chiller with two-pass heat exchanger in a series counterflow arrangement
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-007/00
출원번호
US-0444934
(2006-10-10)
등록번호
US-8250879
(2012-08-28)
국제출원번호
PCT/US2006/039513
(2006-10-10)
§371/§102 date
20100111
(20100111)
국제공개번호
WO2008/045039
(2008-04-17)
발명자
/ 주소
MacBain, Scott M.
Stark, Michael A.
출원인 / 주소
Carrier Corporation
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
4인용 특허 :
22
초록▼
A dual refrigeration circuit, watercooled chiller has its respective evaporators and condensers interconnected by waterboxes, with each waterbox having an inlet flow and outlet flow connection, and with three passages interconnected with the respective evaporators/condensers of the first and second
A dual refrigeration circuit, watercooled chiller has its respective evaporators and condensers interconnected by waterboxes, with each waterbox having an inlet flow and outlet flow connection, and with three passages interconnected with the respective evaporators/condensers of the first and second circuit, and with each of the condensers/evaporators having return bends at their ends to provide a two-pass flow arrangement. The flow in the condenser waterbox passes into a first passage and then in one direction to the condenser of one circuit while the flow into the evaporator waterbox passes into a first passage and then in the opposite direction to one of the circuit evaporators. In this manner, a series counterflow arrangement with two water passes is achieved.
대표청구항▼
1. A chiller system of the type having first and second refrigeration circuits with each refrigeration circuit having a compressor, a condenser, an expansion device and an evaporator and with the respective evaporators in the first and second circuits having a plurality of tubes to conduct the flow
1. A chiller system of the type having first and second refrigeration circuits with each refrigeration circuit having a compressor, a condenser, an expansion device and an evaporator and with the respective evaporators in the first and second circuits having a plurality of tubes to conduct the flow of fluid to be cooled, and with the respective evaporators of the first and second circuits being interconnected in series relationship such that the fluid to be chilled passes serially through the respective evaporators of the first and second circuits, comprising: an evaporator waterbox interconnected between the evaporators of the first and second circuits and having at least three passages therein with the first passage having a water inlet connection and a second passage having a water outlet connection;each of the evaporators of the first and second circuits having first and second pass tubes interconnected at their ends by a return bend;such that the water flows into said first passage and then into one of the evaporators of the first and second circuit, flowing serially through said first pass, said return bend and through said second pass, and then into a third passage of said evaporator waterbox prior to flowing through said other evaporator, flowing serially through said first pass, said return bend and through said second pass and then into said second passage and out the water outlet connection. 2. A chiller system as set forth in claim 1 wherein said respective condensers in the first and second circuits have a plurality of tubes to conduct the flow of fluid to be cooled, and with the respective condensers of the first and second circuits being interconnected in series relationship such that the fluid to chilled passes serially through the respective evaporators of the first and second circuits; a condenser waterbox interconnected between the condensers of the first and second circuits and having at least three passages therein with the first passage having a water inlet connection and a second passage having a water outlet connection;each of the condensers of the first and second circuits having first and second pass tubes interconnected at their ends by a return bend;such that the water flows into said first passage and then into one of the condensers of the first or second circuit, flowing serially through said first pass, said return bend and through said second pass and then into a third passage of said condenser waterbox prior to flowing to said other condenser, flowing serially through said first pass, said return bend and through said second pass and then into said second passage of said condenser waterbox to said water outlet connection. 3. A chiller system as set forth in claim 2 wherein said condenser and evaporator waterboxes are so connected that the respective flows in the third passages of the respective condenser and evaporator are in opposite directions. 4. A chiller system as set forth in claim 2 wherein the direction of the water flowing from said evaporator waterbox to one of said evaporators is in an opposite direction from the flow of water flowing from said condenser waterbox to one of said condensers. 5. A dual-circuit chiller, comprising: a first circuit having a compressor, a condenser, an expansion device and an evaporator, with the evaporator having at least one tube for conducting the flow of water to be cooled from an inlet end to a return bend and back to an outlet end of the tube;a second circuit having a compressor, a condenser, an expansion device and an evaporator with the evaporator having at least one tube for conducting the flow of water to be cooled from an inlet end to a return bend and back to an outlet end of the tube; andan evaporator waterbox having inlet and outlet flow openings and being fluidly interconnected between said first circuit tube inlet and outlet ends and the second circuit tube inlet and outlet ends, such that water to be cooled flows into said evaporator waterbox, through said first circuit tube, back into said evaporator waterbox, through said second circuit tube, back into said evaporator waterbox and then out said outlet flow opening. 6. A dual-circuit chiller as set forth in claim 5 and including: each of said first and second circuit condensers having at least one tube for conducting the flow of water to be cooled from an inlet to a return bend and back to an outlet end of the tube;a condenser waterbox having inlet and outlet flow openings and being fluidly interconnected between said first tube inlet and outlet ends and the second circuit tube inlet and outlets ends, such that water be to cooled flows into said condenser waterbox, through said second circuit tube, back into said condenser waterbox, through said first circuit tube and back into said condenser waterbox, and then out said outlet flow opening. 7. A dual-circuit chiller as set forth in claim 6 wherein each of said evaporator and condenser waterboxes have three passages formed therein, with a first passage having the inlet flow opening a second passage having the outlet flow opening and a third passage for fluidly connecting the two evaporators/condenser. 8. A chiller system as set forth in claim 7 wherein said condenser and evaporator waterboxes are so connected that the respective flows in the third passages of the respective condenser and evaporator are in opposite directions. 9. A chiller system as set forth in claim 7 wherein direction of the water flowing from said evaporator waterbox to said first circuit tube is in an opposite direction from the flow of water flowing from said condenser waterbox to said second circuit tube.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (22)
Beaverson Gregory K. ; Ginder Harold B. ; Deltz Dennis L., Adaptive hot gas bypass control for centrifugal chillers.
Sullivan Brian T. (La Crosse WI) Goshaw Craig M. (La Crosse WI) Rentmeester Paul C. (La Crosse WI), Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive.
Hare Jeffrey J. ; Harris Willard S. ; Hickey Jody A. ; Schmidt Roger R. ; Seminaro Edward J. ; Chrysler Gregory M. ; Chu Richard C. ; Goth Gary F. ; Simons Robert E., Modular refrigeration system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.