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1. WO2020113980 - REFRIGERATION SYSTEM

Publication Number WO/2020/113980
Publication Date 11.06.2020
International Application No. PCT/CN2019/098852
International Filing Date 01.08.2019
IPC
F24F 5/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
5Air-conditioning systems or apparatus not covered by group F24F1/ or F24F3/119
F25B 45/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
45Arrangements for charging or discharging refrigerant
CPC
F24F 5/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
5Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00 ; , e.g. using solar heat or combined with household units such as an oven or water heater
F25B 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
13Compression machines, plant or systems with reversible cycle
F25B 41/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
41Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
F25B 41/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
41Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
04Disposition of valves
F25B 45/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
45Arrangements for charging or discharging refrigerant
F25B 49/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
49Arrangement or mounting of control or safety devices
02for compression type machines, plant or systems
Applicants
  • 约克广州空调冷冻设备有限公司 YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION CO., LTD. [CN]/[CN]
  • 江森自控科技公司 JOHNSON CONTROLS TECHNOLOGY COMPANY [US]/[US]
Inventors
  • 俞德茂 YU, Demao
  • 吴双 WU, Shuang
Agents
  • 上海脱颖律师事务所 TUO YING LAW OFFICES (SHANGHAI)
Priority Data
201811482252.705.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) REFRIGERATION SYSTEM
(FR) SYSTÈME DE RÉFRIGÉRATION
(ZH) 制冷系统
Abstract
(EN)
Disclosed is a refrigeration system, comprising refrigeration system components, a connecting pipeline, a switch structure, and discharging channels (123, 124; 623, 624). The refrigeration system components comprise three heat exchangers (101; 102; 112). The refrigeration system components can be connected via the connecting pipeline, and are combined into different working systems via the switch structure. When two heat exchangers are selected by the switch structure to form one working system and the saturation temperature corresponding to the internal pressure of the unselected heat exchanger is higher than the medium or environment temperature of the heat exchanger, a liquid refrigerant accumulates inside the non-working heat exchanger. According to the refrigeration system, the switch structure is arranged at either end of the non-working heat exchanger, so that the non-working heat exchanger is isolated from a working system cycle, and under the condition where the pressure at a low-pressure side (C; Q) of the working system is less than the internal pressure of the non-working heat exchanger, additional discharging channels (123, 124; 623, 624) communicate with the non-working heat exchanger and the low-pressure side (C; Q) of the working system, so that the refrigerant accumulating in the non-working heat exchanger is transferred to the system cycle, avoiding a lack of refrigerant in the system cycle.
(FR)
La présente invention concerne un système de réfrigération comprenant des composants de système de réfrigération, un pipeline de raccordement, une structure de commutateur et des canaux d'évacuation (123, 124 ; 623, 624). Les composants du système de réfrigération comprennent trois échangeurs de chaleur (101 ; 102 ; 112). Les composants du système de réfrigération peuvent être raccordés par l'intermédiaire du pipeline de raccordement et sont combinés en différents systèmes de travail par l'intermédiaire de la structure de commutateur. Lorsque deux échangeurs de chaleur sont sélectionnés par la structure de commutateur pour former un système opérationnel et la température de saturation correspondant à la pression interne de l'échangeur de chaleur non sélectionné est supérieure au milieu ou à la température ambiante de l'échangeur de chaleur, un réfrigérant liquide s'accumule à l'intérieur de l'échangeur de chaleur non opérationnel. Selon le système de réfrigération, la structure de commutateur est agencée au niveau de chaque extrémité de l'échangeur de chaleur non opérationnel, de sorte que l'échangeur de chaleur non opérationnel est isolé d'un cycle du système de travail, et à la condition que la pression au niveau d'un côté basse pression (C ; Q) du système opérationnel est inférieure à la pression interne de l'échangeur de chaleur non opérationnel, des canaux d'évacuation supplémentaires (123, 124 ; 623, 624) communiquent avec l'échangeur de chaleur non opérationnel et le côté basse pression (C ; Q) du système opérationnel, de sorte que le réfrigérant s'accumulant dans l'échangeur de chaleur non opérationnel est transféré au cycle du système, évitant un manque de réfrigérant dans le cycle du système.
(ZH)
一种制冷系统,包括制冷系统部件、连接管路、开关结构和排放通路(123,124;623,624),制冷系统部件包括三个换热器(101;102;112)。连接管路能够连接制冷系统部件,并且通过开关结构组合成不同的工作系统。当开关结构选择两个换热器形成一个工作系统,且未被选中的换热器内部压力对应的饱和温度高于换热器的介质或环境温度时,不工作的换热器内部会积存液态制冷剂。制冷系统在不工作的换热器两端设置开关结构,使得不工作的换热器与正在工作的系统循环隔绝,并在工作系统低压侧(C;Q)的压力小于不工作的换热器内压力的条件下,通过外加的排放通路(123,124;623,624)连通不工作的换热器和工作系统的低压侧(C;Q),使得积存在不工作的换热器内的制冷剂迁移至系统循环中,以防止系统循环中缺乏制冷剂。
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