- 专利标题: Systems and methods for controlling differential refrigerant pressure
-
申请号: US16457351申请日: 2019-06-28
-
公开(公告)号: US10935293B2公开(公告)日: 2021-03-02
- 发明人: Philippe Del Marcel Tisserand , Yves Jacques Raimbault , Stephane Koenigsecker
- 申请人: TRANE INTERNATIONAL INC.
- 申请人地址: US NC Davidson
- 专利权人: TRANE INTERNATIONAL INC.
- 当前专利权人: TRANE INTERNATIONAL INC.
- 当前专利权人地址: US NC Davidson
- 代理机构: Hamre, Schumann, Mueller & Larson, P.C.
- 主分类号: F25B49/02
- IPC分类号: F25B49/02 ; F25B31/00
摘要:
Systems and methods are provided for controlling compressor systems to ensure sufficient pressure differentials to provide cooling. A compressor system includes a compressor, a suction pressure sensor at a suction of the compressor, a discharge pressure sensor, a condenser, an expansion device, a liquid line, a liquid line pressure sensor, an evaporator, a condenser blower and a controller. The method includes determining a pressure target based on an intermediate pressure within the compressor and a threshold cooling differential pressure value, determining a pressure ratio setpoint based on the pressure target and a liquid line pressure measured by the liquid line pressure sensor, controlling the condenser blower to operate based on the determined pressure ratio setpoint, determining a subcooling setpoint based on the pressure target and the liquid line pressure in the compressor system, and controlling the expansion device to operate based on the subcooling setpoint.
信息查询