Heating, ventilating, air conditioning and refrigerating system

A heating, ventilation, air conditioning, and refrigeration system includes a suction heat exchanger configured to add heat to a working fluid prior to the working fluid entering a compressor in order to support the HVACR system to generate overheating. The overheating may be controlled to reach a desired level to support lubricant and working fluid separation of the HVACR system. The suction heat exchanger may heat the working fluid passing through the suction inlet of the compressor by exchanging heat with the working fluid originating between the lubricant separator and the condenser. The suction heat exchanger may also act as a receiver for controlling the charge of the working fluid circulating in the HVACR system. 一种加热、通风、空调和制冷系统，包括吸入热交换器，所述吸入热交换器被配置为在工作流体进入压缩机之前将热量添加到工作流体，以便支持HVACR系统产生过热。可以控制过热以达到期望的水平，从而支持HVACR系统的润滑剂与工作流体的分离。吸入热交换器通过与源自润滑剂分离器和冷凝器之间的工作流体交换热量，可以加热穿过压缩机的吸入口的工作流体。吸入热交换器还可用作接收器，用于控制在HVACR系统中循环的工作流体的充注量。