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1. 发明公开

EP3279576A1 VARIABLE REFRIGERANT FLOW SYSTEM 审中-公开
标题翻译：可变制冷剂流量系统
公开(公告)号：EP3279576A1
公开(公告)日：2018-02-07
申请号：EP15887320.8
申请日：2015-12-22
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： CHEN, Junwei , YANG, Guozhong
IPC分类号： F24F3/06 , F24F11/02 , F25B41/04 , F25B49/02
CPC分类号： F24F3/06 , F24F1/0003 , F24F11/30 , F24F11/62 , F24F11/65 , F24F11/89 , F24F2221/54 , F25B13/00 , F25B29/003 , F25B41/04 , F25B49/02 , F25B2313/006 , F25B2313/007 , F25B2313/0231 , F25B2313/0233 , F25B2313/0292 , F25B2313/0311 , F25B2400/23 , F25B2500/12 , F25B2600/2509 , F25B2600/2513 , F25B2600/2519
摘要： A variable refrigerant flow system, comprising an outdoor unit apparatus (10), a split-flow apparatus (30) and a plurality of indoor unit apparatuses (21, 22, 23, 24), wherein each of the indoor unit apparatuses (21, 22, 23, 24) comprises an indoor heat exchanger (211, 221, 231, 241) and a throttling element (212, 222, 232, 242), the split-flow apparatus (30) comprises a plurality of first control valves (302A, 302B, 302C, 302D) and a plurality of second control valves (303A, 303B, 303C, 303D) corresponding to each of the indoor unit apparatuses (21, 22, 23, 24), and when any one of the indoor unit apparatuses (21, 22, 23, 24) receives a mode switching instruction, the mode switching instruction is sent to the split-flow apparatus (30); and according to the mode switching instruction, the split-flow apparatus (30) determines whether the first control valves (302A, 302B, 302C, 302D) and the second control valves (303A, 303B, 303C, 303D) corresponding to the indoor unit apparatuses (21, 22, 23, 24) are open or closed. The variable flow refrigerant system can effectively reduce the noise produced when the indoor unit apparatuses switch modes, thereby improving the user's degree of comfort.
摘要翻译：一种可变制冷剂流动系统，包括室外单元设备（10），分流设备（30）和多个室内单元设备（21,22,23,24），其中每个室内单元设备（21,22,23,24）所述分流设备（30）包括多个第一控制阀（22,22,23,24），所述第一控制阀（22,22,23,24）包括室内热交换器（211,221,231,241）和节流元件（212,222,232,242） 302A，302B，302C，302D）和与各室内机装置（21,22,23,24）对应的多个第二控制阀（303A，303B，303C，303D）设备（21,22,23,24）接收模式切换指令，将模式切换指令发送给分流设备（30）; 根据模式切换指示，分流装置（30）判断与室内机对应的第一控制阀（302A，302B，302C，302D）和第二控制阀（303A，303B，303C，303D）设备（21,22,23,24）打开或关闭。可变流量制冷剂系统可以有效地降低室内机装置切换模式时产生的噪音，从而提高用户的舒适度。

2. 发明公开

EP3279575A1 MULTI-ONLINE SYSTEM 审中-公开
标题翻译：多联机系统
公开(公告)号：EP3279575A1
公开(公告)日：2018-02-07
申请号：EP15887319.0
申请日：2015-12-22
申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. , Midea Group Co., Ltd.
发明人： LUO, Bin , CHEN, Junwei
IPC分类号： F24F3/06 , F24F11/02 , F25B41/04 , F25B49/02
CPC分类号： F24F3/06 , F24F1/0003 , F24F11/30 , F24F11/89 , F24F2110/00 , F24F2140/20 , F25B13/00 , F25B40/00 , F25B41/04 , F25B41/062 , F25B49/02 , F25B2313/0231 , F25B2313/0233 , F25B2313/029 , F25B2313/0314 , F25B2341/0661 , F25B2400/23 , F25B2600/2509 , F25B2700/13 , F25B2700/191 , F25B2700/2103
摘要： A multi-online system comprises an outdoor unit device (10), a shunt device (30) and multiple indoor unit devices (21, 22, 23, 24). The shunt device (30) comprises a gas-liquid separator (301), a first heat exchange assembly (307A), a first electronic expansion valve (304A), a second heat exchange assembly (307B), a second electronic expansion valve (304B) and a third electronic expansion valve (304C) connected in parallel with the second electronic expansion valve (304B). The shunt device (30) is used for obtaining the flow rate of a refrigerant passing through the first electronic expansion valve (304A), and respectively obtaining the outlet temperature of indoor heat exchanger (211, 221, 231, 241) of each refrigeration indoor unit device (21, 22, 23, 24) and the temperature of a refrigerant flowing into the second heat exchange assembly (307B) to calculate a superheat degree value when the flow rate of the refrigerant passing through the first electronic expansion valve (304A) is larger than a first preset value, and carries out PI control to the second electronic expansion valve (304B) and the third electronic expansion valve (304C). The multi-online system can accurately calculate the superheat degree of the shunt device, realize accurate distribution of the refrigerant in the system, and obtain an optimal simultaneous heating and refrigerating effect thereof.
摘要翻译：多联机系统包括室外单元装置（10），分流装置（30）和多个室内单元装置（21,22,23,24）。分流装置30包括气液分离器301，第一热交换组件307A，第一电子膨胀阀304A，第二热交换组件307B，第二电子膨胀阀304B，）和与第二电子膨胀阀（304B）并联连接的第三电子膨胀阀（304C）。分流装置（30）用于获得通过第一电子膨胀阀（304A）的制冷剂的流量，并且分别获得每个制冷室内的室内热交换器（211,221,231,241）的出口温度当流过第一电子膨胀阀304A的制冷剂的流量与流入第二热交换组件307B的制冷剂的温度相同时，计算过热度值，大于第一预设值，并且对第二电子膨胀阀（304B）和第三电子膨胀阀（304C）执行PI控制。多联机系统可以准确地计算分流装置的过热度，实现系统中制冷剂的精确分配，并获得最佳的同时加热和制冷效果。

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