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公开(公告)号：EP3262355A1
公开(公告)日：2018-01-03
申请号：EP16709222.0
申请日：2016-02-26
申请人： Carrier Corporation
发明人： SUN, Jian , CHEN, Linhui
CPC分类号： F25B49/027 , F25B27/00 , F25B40/00 , F25B40/02 , F25B41/043 , F25B47/022 , F25B2327/001 , F25B2500/19 , F25B2600/111 , F25B2600/17 , F25B2700/15 , F25B2700/171 , F25B2700/1933 , F25B2700/2106 , F25B2700/21175 , F25D11/003 , Y02B30/743
摘要： A method of controlling a refrigeration system having a compressor, a condenser, an evaporator, and a variable speed condenser fan is provided. The method includes determining if a change in an ambient temperature or a compressor suction pressure is greater than a predetermined threshold, determining a near-optimal condensing pressure/temperature if the change in the ambient temperature or the compressor suction pressure is above the predetermined threshold, setting a condensing pressure setpoint based on the determined near-optimal condensing pressure/temperature, and setting a speed of the variable speed condenser fan based on the condensing pressure setpoint.
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公开(公告)号：EP2737265A1
公开(公告)日：2014-06-04
申请号：EP12751162.4
申请日：2012-07-25
申请人： Carrier Corporation
发明人： SUN, Jian , HUFF, Hans-Joachim , SHAPIRO, Aryn , HOFSDAL, Gilbert B. , GAN, Mingfei , LI, Wenhua
CPC分类号： F25B49/02 , F25B1/10 , F25B9/008 , F25B41/00 , F25B2309/061 , F25B2341/0662 , F25B2400/072 , F25B2400/13 , F25B2400/23 , F25B2600/025 , F25B2600/11 , F25B2600/111 , F25B2600/21 , F25B2600/2501 , F25B2600/2509 , F25B2600/2513 , F25B2700/191 , F25B2700/1933 , F25B2700/195 , F25B2700/2102 , F25B2700/21151 , F25B2700/21152 , F25B2700/21163 , Y02B30/743
摘要： A refrigeration system includes a compressor having a first stage (20a) and a second stage (20b); a motor (22) driving the compressor; a heat rejecting heat exchanger having a fan (44) drawing ambient fluid over the heat rejecting heat exchanger, the heat rejecting heat exchanger including an intercooler (43) and a gas cooler, the inter-cooler coupled to an outlet of the first stage and the gas cooler (41) coupled to an outlet of the second stage; a flash tank (70) coupled to an outlet of the gas cooler; a primary expansion device (55) coupled to an outlet of the flash tank; a heat absorbing heat exchanger (50) coupled to an outlet of the primary expansion device, an outlet of the heat absorbing heat exchanger coupled to the suction port of the first stage; and a controller (100) for implementing a pulldown mode, a control mode and a staging logic mode.
摘要翻译： 制冷系统包括具有第一级（20a）和第二级（20b）的压缩机; 驱动压缩机的马达（22）; 一种排热热交换器，其具有将热交换器上的环境流体吸入的风扇（44），所述排热热交换器包括中间冷却器（43）和气体冷却器，所述中间冷却器联接到所述第一级的出口，以及 所述气体冷却器（41）联接到所述第二级的出口; 闪蒸罐（70），其联接到所述气体冷却器的出口; 耦合到所述闪蒸罐的出口的主膨胀装置（55）; 耦合到主膨胀装置的出口的吸热热交换器（50），耦合到第一级的吸入口的吸热热交换器的出口; 以及用于实现下拉模式，控制模式和分级逻辑模式的控制器（100）。
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公开(公告)号：EP3377830A1
公开(公告)日：2018-09-26
申请号：EP16805661.2
申请日：2016-11-17
申请人： Carrier Corporation
发明人： SUN, Jian , LIU, Lucy Yi
摘要： A method of determining charge loss of a refrigeration system includes the steps of inputting an ambient temperature, a box temperature, and a compressor speed into an electronic controller of the refrigeration system, and calculating a first air side temperature difference across an evaporator by applying an algorithm having a first T-Map representative of normal operating conditions. The controller may then confirm a detection prerequisite is satisfied. Upon confirmation, the controller calculates a second air side temperature difference across the evaporator by applying the algorithm having a second T-Map representative of a loss of refrigerant charge. An action may then be taken from the controller if the first air side temperature difference is less than the second air side temperature difference.
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公开(公告)号：EP2812640B1
公开(公告)日：2018-08-08
申请号：EP13706332.7
申请日：2013-02-04
申请人： Carrier Corporation
发明人： LIU, Lucy Yi , SUN, Jian
CPC分类号： F25B45/00 , F25B49/00 , F25B49/005 , F25B2345/003 , F25B2400/13 , F25B2500/222 , F25B2600/024 , F25B2600/026 , F25B2600/2513 , F25B2700/151 , F25B2700/171 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151 , F25B2700/21152 , F25B2700/21172 , F25B2700/21173 , G01K13/02
摘要： A method is provided for detecting in real-time a refrigerant charge loss in a refrigerant vapor compression system. If both a sensed evaporator outlet superheat exceeds a target evaporator outlet superheat by at least a preset amount of superheat and a sensed degree of openness of an electronic expansion valve exceeds a preset degree of openness for a preset time of period, and a sensed air temperature of either a flow of supply air having traversed the evaporator or a flow of return air returning to the evaporator is changing at a rate less than preset air temperature rate of change, a service alarm is generated indicating a loss of charge warning.
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公开(公告)号：EP3850280A1
公开(公告)日：2021-07-21
申请号：EP19769684.2
申请日：2019-09-03
申请人： Carrier Corporation
发明人： SUN, Jian , FENG, Yinshan
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公开(公告)号：EP2737264B1
公开(公告)日：2020-07-22
申请号：EP12743324.1
申请日：2012-07-25
申请人： Carrier Corporation
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公开(公告)号：EP3384213A1
公开(公告)日：2018-10-10
申请号：EP16805949.1
申请日：2016-11-16
申请人： Carrier Corporation
发明人： SUN, Jian , PERKOVICH, Mark J.
CPC分类号： F25B1/10 , F25B49/02 , F25B2341/0662 , F25B2400/072 , F25B2400/23 , F25B2500/19 , F25B2600/2509 , F25B2700/151 , F25B2700/1931 , F25B2700/1933 , F25B2700/197 , F25B2700/2106 , F25B2700/21151 , F25B2700/21152 , F25B2700/21173 , F25B2700/21175 , F25D11/003 , F25D29/003
摘要： Methods and systems for operating a refrigeration unit are provided. The methods and systems include measuring a first characteristic of a refrigeration unit, calculating a compressor middle stage pressure based on the first measured characteristic, determining if a first comparison and a second comparison are satisfied based on the first measured characteristic and the calculated compressor middle stage pressure, and opening an economizer solenoid valve when the first comparison and the second comparison are satisfied.
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9.发明公开
公开(公告)号：EP2888543A1
公开(公告)日：2015-07-01
申请号：EP13756241.9
申请日：2013-08-21
申请人： Carrier Corporation
发明人： SUN, Jian , SHAPIRO, Aryn , LIU, Lucy Yi , GAN, Mingfei
IPC分类号： F25B49/02
CPC分类号： F25B49/02 , F25B1/10 , F25B49/022 , F25B2309/061 , F25B2400/13 , F25B2600/0253 , F25B2600/111 , F25B2600/2509 , Y02B30/741 , Y02B30/743
摘要： Operation of a transcritical refrigerant vapor compression system for supplying temperature conditioned air to a temperature controlled space is controlled when staging up or staging down to avoid undesirable overshoot and undershoot of the narrow temperature band bounding the control temperature set point for the temperature within the temperature controlled space.
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10.发明公开TRANSCRITICAL REFRIGERANT VAPOR COMPRESSION SYSTEM HIGH SIDE PRESSURE CONTROL 审中-公开控制高压侧压力以跨上临界冷却蒸汽压缩系统
公开(公告)号：EP2888542A1
公开(公告)日：2015-07-01
申请号：EP13753251.1
申请日：2013-08-20
申请人： Carrier Corporation
发明人： SUN, Jian , LIU, Lucy Yi
CPC分类号： F25B49/022 , F25B1/10 , F25B9/008 , F25B49/02 , F25B2309/061 , F25B2341/0662 , F25B2400/23 , F25B2500/19 , F25B2600/022 , F25B2600/0253 , F25B2600/0261 , F25B2600/2509 , F25B2700/1931 , F25B2700/1933 , F25B2700/21161 , F25B2700/21163 , F25B2700/21171 , F25B2700/21175 , Y02B30/741
摘要： Operation of a transcritical refrigerant vapor compression system is controlled, when operating in a high capacity mode, through control of the refrigerant pressure in the refrigerant heat rejection heat exchanger (40) or the compressor (30) discharge pressure, also referred to herein as the high side pressure, so as to optimize energy efficiency. When operating in unloaded low capacity mode, such as for chilling perishable product during temperature maintenance operation, the high side pressure is controlled so that the system can operate in a continuous running mode.
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