The invention discloses a throttling device, a CO2 two-way circulation heat pump air conditioner and a control method of the CO2 two-way circulation heat pump air conditioner. A throttling device comprises a first stop valve, a second stop valve, a one-way electronic expansion valve, a first throttling pipeline and a second throttling pipeline, and the first throttling pipeline and the second throttling pipeline are connected in parallel and then connected with a pipeline where the one-way electronic expansion valve is located in series. The pipeline where the first stop valve is located is communicated with the first throttling pipeline, and the pipeline where the second stop valve is located is communicated with the second throttling pipeline. A plurality of one-way valves are arranged on each throttling pipeline and are divided into two sets, and the two sets of one-way valves are arranged on the two sides of the communicating positions of the throttling pipelines and the stop valves respectively. According to the throttling device, the CO2 two-way circulation heat pump air conditioner and the control method of the CO2 two-way circulation heat pump air conditioner, the CO2 two-way circulation heat pump air conditioner and the throttling device are connected, only one electronic expansion valve, a plurality of one-way valves and other valves are used, two-way flowing of refrigerants is achieved, and the use amount of electrical parts is reduced.
本发明公开了一种节流装置、CO2双向循环热泵空调及其控制方法。一种节流装置,包括第一截止阀、第二截止阀、单向电子膨胀阀、第一节流管路和第二节流管路,第一节流管路和第二节流管路并联后与单向电子膨胀阀所在的管路串联;第一截止阀所在的管路和第一节流管路连通,第二截止阀所在的管路与第二节流管路连通;每个节流管路上均设置有多个单向阀,多个单向阀均分为两组,两组单向阀分别设置于节流管路与截止阀连通处的两侧。本发明公开的一种节流装置、CO2双向循环热泵空调及其控制方法,将CO2双向循环热泵空调和节流装置连接,仅使用一个电子膨胀阀和多个单向阀等阀件,实现制冷剂的双向流动,减少电气件的使用量。
Throttling device, CO2 bidirectional circulation heat pump air conditioner and control method of CO2 bidirectional circulation heat pump air conditioner
一种节流装置、CO2双向循环热泵空调及其控制方法
2023-06-06
Patent
Electronic Resource
Chinese
IPC: | F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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