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1.发明申请HEAT RECOVERY VARIABLE-FREQUENCY MULTI-SPLIT HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF 审中-公开热回收可变频率多分支热泵系统及其控制方法公开(公告)号：US20170010027A1
公开(公告)日：2017-01-12
申请号：US15114269
申请日：2014-03-25
申请人： QINGDAO HISENSE HITACHI AIR-CONDITIONUNG SYSTEMS CO., LTD , HISENSE USA CORPROATION , HISENSE INTERNATIONAL CO.,LTD.
发明人： Min LIU , Yuanpeng WANG , Wenqiang ZHANG , Rui CAO , Yajun LI , Yongmei LI
CPC分类号： F25B13/00 , F25B41/04 , F25B41/046 , F25B41/062 , F25B41/067 , F25B43/02 , F25B2313/007 , F25B2313/0231 , F25B2313/0232 , F25B2313/0233 , F25B2341/065 , F25B2341/0661 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , Y02B30/72
摘要： A heat recovery variable-frequency multi-split heat pump system and a control method thereof. The system comprises an outdoor unit and at least two indoor units. The system is a three-pipe heating recovery multi-split heat pump system designed on the basis of a four-way reversing valve, and one indoor unit thereof is provided with two electronic expansion valves and two heat exchangers so that any indoor unit in the system can operate independently under three working conditions of refrigeration, heating or heat recovery dehumidification. Under multi-split condition, the system can operate under six working conditions, namely, the full-refrigeration working condition, the full-heating working condition, the common-heat-recovery working condition, the common-heat-recovery-dehumidification working condition, the heat recovery dehumidification-refrigeration-combination working condition and the heat recovery dehumidification-heating-combination working condition. Under the heat recovery dehumidification condition, a lower outlet air temperature, during low-temperature dehumidification, is raised by means of heat removal of a condenser so as to achieve the purpose of dehumidification without temperature fall or temperature rise, so that the thermal comfort and efficiency of the system are improved, and the refrigerating capacity and heating capacity of the system are effectively improved.
摘要翻译： 一种热回收变频多分割热泵系统及其控制方法。 该系统包括室外单元和至少两个室内单元。 该系统是基于四通换向阀设计的三管加热回收多分割热泵系统，其一个室内机组设有两个电子膨胀阀和两个热交换器，使得任何室内机 系统可以在制冷，加热或热回收除湿三个工作条件下独立运行。 在多分段条件下，系统可以在六个工作条件下工作，即全制冷工作状态，全热工作状态，共热恢复工作状态，常热回热除湿工况 热回收除湿 - 制冷组合工作条件和热回收除湿加热组合工作条件。 在热回收除湿条件下，通过冷凝器的除热，在低温除湿过程中出口空气温度较低，达到除湿，无温度下降或升温的目的，从而使热舒适度和 提高了系统效率，有效提高了系统的制冷能力和制热能力。
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2.发明申请公开(公告)号：US20190032968A1
公开(公告)日：2019-01-31
申请号：US16150065
申请日：2018-10-02
申请人： QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD. , HISENSE USA CORPORATION , HISENSE INTERNATIONAL CO., LTD.
发明人： Min LIU , Yuanpeng WANG , Wenqiang ZHANG , Rui CAO , Yajun LI , Yongmei LI
摘要： A heat recovery variable-frequency multi-split heat pump system and a control method thereof. The system includes an outdoor unit and at least two indoor units. The system is a three-pipe heating recovery multi-split heat pump system designed on the basis of a four-way reversing valve, and one indoor unit thereof is provided with two electronic expansion valves and two heat exchangers so that any indoor unit in the system can operate independently under three working conditions of refrigeration, heating or heat recovery dehumidification. Under multi-split condition, the system can operate under six working conditions, namely, the full-refrigeration working condition, the full-heating working condition, the common-heat-recovery working condition, the common-heat-recovery-dehumidification working condition, the heat recovery dehumidification-refrigeration-combination working condition and the heat recovery dehumidification-heating-combination working condition. Under the heat recovery dehumidification condition, a lower outlet air temperature, during low-temperature dehumidification, is raised by means of heat removal of a condenser so as to achieve the purpose of dehumidification without temperature fall or temperature rise, so that the thermal comfort and efficiency of the system are improved, and the refrigerating capacity and heating capacity of the system are effectively improved.
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