公开(公告)号：WO2009091400A1

公开(公告)日：2009-07-23

申请号：PCT/US2008/051319

申请日：2008-01-17

Applicant: CARRIER CORPORATION ,  CHEN, Yu, H. ,  DURAISAMY, Suresh ,  LIU, Lucy, Yi ,  SCARCELLA, Jason ,  ASPROVSKI, Zvonko ,  LAMENDOLA, Kursten ,  MITRA, Miswajit

Inventor： CHEN, Yu, H. ,  DURAISAMY, Suresh ,  LIU, Lucy, Yi ,  SCARCELLA, Jason ,  ASPROVSKI, Zvonko ,  LAMENDOLA, Kursten ,  MITRA, Miswajit

IPC: F25B1/10

CPC classification number: F25B9/008 ,  F25B1/10 ,  F25B49/02 ,  F25B2309/061 ,  F25B2400/01 ,  F25B2400/16 ,  F25B2600/0253 ,  F25B2600/0261 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2700/193 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2115 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21161 ,  F25B2700/21173 ,  F25B2700/21175 ,  Y02B30/741

Abstract: A carbon dioxide refrigerant vapor compression system and method of operating that system are provided. The refrigerant vapor compression system includes a compression device, a flash tank receiver disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger, and a compressor unload circuit including a refrigerant line establishing refrigerant flow communication between an intermediate pressure stage of the compression device and the refrigerant circuit at a location downstream of the refrigerant heat absorption heat exchanger and upstream of a suction inlet to the compression device, and a unload circuit flow control device disposed in said unload circuit refrigerant line. In response to at least one system operating parameter sensed by at least one sensor, the controller selectively positions the unload flow control device to maintain the refrigerant vapor compression system operating below a preselected high pressure limit.

Abstract translation: 提供二氧化碳制冷剂蒸汽压缩系统和操作该系统的方法。 制冷剂蒸气压缩系统包括压缩装置，设置在制冷剂排热换热器和制冷剂吸热式热交换器之间的制冷剂回路中的闪蒸罐接收器，以及包括制冷剂管线的压缩机卸载回路，该制冷剂管路建立中间体 压缩装置的压力级和制冷剂回路在制冷剂吸热热交换器的下游侧和压缩装置的吸入口的上游，以及设置在所述卸载回路制冷剂管路中的卸载回路流量控制装置。 响应于由至少一个传感器感测到的至少一个系统操作参数，控制器选择性地定位卸载流量控制装置，以使制冷剂蒸气压缩系统保持在预选的高压限制以下。