公开(公告)号：EP2792974B1

公开(公告)日：2018-12-05

申请号：EP14164663.8

申请日：2014-04-15

申请人： LG Electronics Inc.

发明人： Kim, Byeongsu ,  Kim, Beomchan ,  Ko, Younghwan ,  Ryu, Byoungjin

IPC分类号： F25B13/00 ,  F25B41/04

CPC分类号： F25B13/00 ,  F25B30/02 ,  F25B41/04 ,  F25B2313/005 ,  F25B2313/02741 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2400/13 ,  F25B2600/2509 ,  F25B2700/21151 ,  F25B2700/21152

摘要： An air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a converting unit, a first injection module, and a second injection module. The first injection module injects a portion of refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger to the compressor in a heating operation and supercools refrigerant flowing from the outdoor heat exchanger to the indoor heat exchanger in a cooling operation. The second injection module injects a portion of refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger to the compressor in the heating operation and injects refrigerant flowing from the outdoor heat exchanger to the indoor heat exchanger to the compressor in the cooling operation.

公开(公告)号：EP2483609B1

公开(公告)日：2018-10-31

申请号：EP10770663.2

申请日：2010-09-29

申请人： Thermo Fisher Scientific (Asheville) LLC

发明人： BROWN, Andrew ,  MORRIS, Wendell ,  SWIFT, Todd ,  WHITE, Thomas

IPC分类号： F25B1/00 ,  F25B7/00 ,  F28F3/08 ,  F28D7/10 ,  F25B39/00 ,  F28D9/00 ,  F25D11/04 ,  F25D23/00

CPC分类号： F25B7/00 ,  F25B39/00 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21161 ,  F25B2700/21174 ,  F25B2700/21175 ,  F25D11/04 ,  F25D23/006 ,  F25D2700/12 ,  F25D2700/14 ,  F28D9/005

摘要： A refrigeration system is provided for use with an ultra-low temperature freezer having a deck and a refrigerated cabinet supported above the deck. The system has a first refrigeration stage and a second refrigeration stage. The first stage defines a first fluid circuit for circulating a first refrigerant. The first stage has a first compressor, a condenser and a first expansion device that is in fluid communication with the first fluid circuit. The second stage defines a second fluid circuit for circulating a second refrigerant. The second stage has a second compressor, a second expansion device and an evaporator that is in fluid communication with the second fluid circuit. The system includes an insulated enclosure supported within the deck and a split-flow heat exchanger that is in fluid communication with the first and second fluid circuits and which is located within the insulated enclosure.

公开(公告)号：EP3054230B1

公开(公告)日：2018-09-05

申请号：EP14847564.3

申请日：2014-01-22

申请人： Fujitsu General Limited

发明人： KIMURA,Takashi ,  HAYASHI, Kuniko

IPC分类号： F25B47/02 ,  F24F11/77 ,  F24F3/06 ,  F25B13/00 ,  F25B49/02

CPC分类号： F25B41/062 ,  F24F3/065 ,  F24F11/42 ,  F24F11/77 ,  F25B13/00 ,  F25B47/025 ,  F25B49/02 ,  F25B2313/005 ,  F25B2313/006 ,  F25B2313/0233 ,  F25B2313/02741 ,  F25B2313/0294 ,  F25B2313/0315 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152 ,  Y02B30/746

摘要： A CPU 210 receives suction pressure PL and a suction temperature Te, calculates a saturation temperature corresponding to the evaporation pressure Tsl by using the suction pressure PL, and calculates a suction superheating degree SHs of a compressor 21 by using the suction temperature Te and the saturation temperature corresponding to the evaporation pressure Tsl. The CPU 210 reads a current opening degree De of an outdoor expansion valve 24. Next, the CPU 210 uses the received suction pressure PL and opening degree De of the outdoor expansion valve 24 and the calculated suction superheating degree SHs, refers to an outdoor fan control table 300, and determines a control aspect of an outdoor fan 27. The CPU 210 executes control of the outdoor fan 27 in accordance with the control aspect that is determined by referring to an outdoor fan rotational speed table 400.

公开(公告)号：EP2229562B1

公开(公告)日：2018-09-05

申请号：EP08727839.6

申请日：2008-01-17

申请人： Carrier Corporation

发明人： CHEN, Yu, H. ,  DURAISAMY, Suresh ,  LIU, Lucy, Yi ,  SCARCELLA, Jason ,  ASPROVSKI, Zvonko ,  LAMENDOLA, Kursten ,  MITRA, Miswajit

IPC分类号： F25B9/00 ,  F25B1/10 ,  F25B49/02

CPC分类号： F25B9/008 ,  F25B1/10 ,  F25B49/02 ,  F25B2309/061 ,  F25B2400/01 ,  F25B2400/16 ,  F25B2600/0253 ,  F25B2600/0261 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2700/193 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2115 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21161 ,  F25B2700/21173 ,  F25B2700/21175 ,  Y02B30/741

摘要： A carbon dioxide refrigerant vapor compression system and method of operating that system are provided. The refrigerant vapor compression system includes a compression device, a flash tank receiver disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger, and a compressor unload circuit including a refrigerant line establishing refrigerant flow communication between an intermediate pressure stage of the compression device and the refrigerant circuit at a location downstream of the refrigerant heat absorption heat exchanger and upstream of a suction inlet to the compression device, and a unload circuit flow control device disposed in said unload circuit refrigerant line. In response to at least one system operating parameter sensed by at least one sensor, the controller selectively positions the unload flow control device to maintain the refrigerant vapor compression system operating below a preselected high pressure limit.

公开(公告)号：EP3149694A4

公开(公告)日：2018-06-06

申请号：EP15799976

申请日：2015-05-18

申请人： EMERSON CLIMATE TECHNOLOGIES

发明人： ALSALEEM FADI M

IPC分类号： G06Q50/10

CPC分类号： F24F11/0086 ,  F24F11/30 ,  F25B13/00 ,  F25B49/005 ,  F25B2313/0314 ,  F25B2500/19 ,  F25B2600/07 ,  F25B2700/2104 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21163

摘要： A heating, ventilation, and air conditioning (HVAC) system of a building includes a refrigerant loop. A monitoring system for the HVAC system includes a monitoring device installed at the building. The monitoring device is configured to measure a first temperature of refrigerant in a refrigerant line located between a filter-drier of the refrigerant loop and an expansion valve of the refrigerant loop. The monitoring system includes a monitoring server, located remotely from the building. The monitoring server is configured to receive the first temperature and, in response to the first temperature being less than a threshold, generate a refrigerant line restriction advisory. The monitoring server is configured to, in response to the refrigerant line restriction advisory, selectively generate an alert for transmission to at least one of a customer and an HVAC contractor.

公开(公告)号：EP3164651A4

公开(公告)日：2018-05-02

申请号：EP15814910

申请日：2015-07-02

申请人： EVAPCO INC

发明人： LIEBENDORFER KURT ,  DEROSIER GREGORY S ,  HEGG TREVOR

IPC分类号： F25D11/00 ,  F25B31/00 ,  F25B39/00 ,  F25B43/00

CPC分类号： F25B43/00 ,  F25B1/005 ,  F25B5/02 ,  F25B33/00 ,  F25B40/00 ,  F25B41/00 ,  F25B2400/05 ,  F25B2400/071 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2700/1933 ,  F25B2700/197 ,  F25B2700/21151 ,  F25B2700/21175 ,  F25D13/00 ,  F25D21/12 ,  F25D23/006

摘要： The invention discloses a low charge packaged refrigeration system. A packaged, pumped liquid, recirculating refrigeration system is provided with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated in a pre-packaged modular machine room, and in which the condenser is mounted on the machine room and the evaporator is close coupled to the pre-packaged modular machine room. Prior art large receiver vessels may be replaced with a single or dual phase cyclonic separator also housed in the pre-packaged modular machine room.

公开(公告)号：EP3136021A4

公开(公告)日：2018-05-02

申请号：EP15783887

申请日：2015-04-23

申请人： SUNAM CO LTD

发明人： CHUNG WOO SUK

IPC分类号： F25B9/00 ,  F25B9/14 ,  F25B25/00

CPC分类号： F25B9/14 ,  F25B25/00 ,  F25B49/02 ,  F25B2309/1428 ,  F25B2339/047 ,  F25B2600/2501 ,  F25B2700/1933 ,  F25B2700/21151

摘要： Provided is a cryogenic refrigeration system. The cryogenic refrigeration system includes a cryogenic refrigerator, and a heat dissipation module configured to cool the cryogenic refrigerator. Here, the heat dissipation module includes a condenser configured to condense a refrigerant that cools the cryogenic refrigerator, and a heat exchanger connected to the cryogenic refrigerator to circulate the refrigerant between the cryogenic refrigerator and the condenser, thereby cooling the cryogenic refrigerator.

公开(公告)号：EP3059510B1

公开(公告)日：2018-04-11

申请号：EP16157025.4

申请日：2016-02-23

申请人： Vaccaro, Luigi

发明人： Vaccaro, Luigi

IPC分类号： F24F3/14 ,  F24F11/00

CPC分类号： F24F3/1405 ,  F24F11/30 ,  F24F2003/1446 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2110/40 ,  F24F2140/12 ,  F24F2140/50 ,  F25B2339/047 ,  F25B2400/0403 ,  F25B2400/0409 ,  F25B2400/0411 ,  F25B2400/075 ,  F25B2500/07 ,  F25B2600/021 ,  F25B2600/0253 ,  F25B2600/111 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21172 ,  F25B2700/21174 ,  Y02B30/741 ,  Y02B30/743

摘要： Method to dehumidify a fluid to be dehumidified that comprises feeding the fluid to be dehumidified into a heat exchanger (11); circulating a coolant in a coolant heat exchange circuit (13) during which the coolant is compressed by a compressor (20), condensed by a condenser (21) and expanded by an expansion member (22); feeding the coolant into the heat exchanger (11) to cool the fluid by means of heat exchange; regulating the actuation speed of the compressor (20) between a value of minimum speed, greater than zero, and a value of maximum speed, the actuation speed being chosen as a function of the thermal load present in the heat exchanger (11) and to prevent the formation of ice in the latter. If the actuation speed of the compressor (20) corresponds with the minimum actuation speed, the method provides to detect at least one functioning parameter of the fluid or the coolant, and if the at least one functioning parameter reaches a limit threshold value, indicating a further reduction in the thermal load, the method provides to switch off the compressor (20).

公开(公告)号：EP3301380A1

公开(公告)日：2018-04-04

申请号：EP16841193.2

申请日：2016-05-11

申请人： Mitsubishi Heavy Industries Thermal Systems, Ltd.

发明人： OMURA, Minemasa ,  OKADA, Takuya ,  TERAOKA, Masahiro

IPC分类号： F25B1/10 ,  F25B1/00

CPC分类号： F25B1/10 ,  F25B5/04 ,  F25B49/02 ,  F25B2400/0409 ,  F25B2400/0411 ,  F25B2400/0415 ,  F25B2400/23 ,  F25B2600/022 ,  F25B2600/025 ,  F25B2600/0271 ,  F25B2600/2501 ,  F25B2700/1931 ,  F25B2700/21151 ,  F25B2700/21152

摘要： The purpose of the present invention is to reduce the temperature of a refrigerant sucked in by a high-stage compressor and prevent the high-stage compressor from sucking in a liquid medium. This refrigeration cycle device has a compression unit having a low-stage compressor (7) and a high-stage compressor (8), a condenser (11), a first expansion valve (12), and an evaporator (17). The refrigeration cycle device is equipped with: a liquid bypass circuit (32) which branches off from a pipe connecting the condenser (11) and the first expansion valve (12), and joins into a pipe connecting the low-stage compressor (7) and the high-stage compressor (8); a third expansion valve (33) which is provided to the liquid bypass circuit (32) and adjusts the amount of the refrigerant flowing through the liquid bypass circuit (32); and a controller (40) which controls the third expansion valve (33) and increases the amount of the refrigerant flowing through the liquid bypass circuit (32) when the discharge temperature of the high-stage compressor (8) is higher than a predetermined value, and which controls the third expansion valve (33) and adjusts the amount of the refrigerant flowing through the liquid bypass circuit (32) on the basis of the suction superheat degree of the high-stage compressor (8).

摘要翻译： 本发明的目的是降低由高级压缩机吸入的制冷剂的温度，并防止高级压缩机吸入液体介质。 该制冷循环装置具有具有低级压缩机7和高级压缩机8，冷凝器11，第一膨胀阀12和蒸发器17的压缩单元。 该制冷循环装置具备：从连接冷凝器（11）和第一膨胀阀（12）的配管分支出来的液体旁通回路（32），与连接低压侧压缩机（7）的配管连接， 和高级压缩机（8）; 第三膨胀阀33，其设置于所述液体旁通回路32，调节流经所述液体旁通回路32的制冷剂量; 以及控制器（40），当高级侧压缩机（8）的排出温度高于预定值时，该控制器（40）控制第三膨胀阀（33）并增加流经液体旁通回路（32）的制冷剂的量 控制第三膨胀阀33，根据高级侧压缩机8的吸入过热度来调节在液体旁通回路32中流动的制冷剂量。

公开(公告)号：EP2245387B1

公开(公告)日：2017-12-20

申请号：EP08727848.7

申请日：2008-01-17

申请人： Carrier Corporation

发明人： HUFF, Hans-Joachim

IPC分类号： F25B49/02 ,  F25B9/00

CPC分类号： F25B49/02 ,  F25B9/008 ,  F25B2309/061 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2501 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21161 ,  F25B2700/21173

摘要： A carbon dioxide refrigerant vapor compression system and a method of operating that system are provided. The refrigerant vapor compression system includes a compression device, a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger disposed in a primary refrigerant circuit, and a compression device unload circuit in parallel refrigerant flow relationship with the primary refrigerant circuit. At full load, the primary refrigerant circuit is open, but the unload circuit is closed. To modulate capacity, a controller alternates operation between a first cycle for a first period of time wherein the primary circuit is open and the unload circuit is closed and a second cycle for a second period of time wherein the primary circuit is closed and the unload circuit is open.