Multi-channel refrigerant controller with changeable refrigerant evaporation

Abstract

A multi-channel refrigerant controller with changeable refrigerant evaporation implements a refrigerant-channel assembly to control refrigerant in terms of flow and direction, and, when working with a phase-change cooler, well supports both high- and low-temperature operations. The multi-channel refrigerant controller includes a refrigerant-channel assembly, a solenoid-valve assembly, a capillary-tube assembly and an execution controller. When receiving settings for a high- or low-temperature operation, the execution controller correspondingly opens relevant refrigerant channels in the refrigerant-channel assembly to guide the refrigerant influents through capillary tubes of different flow capacities to different sites on the phase-change cooler for evaporation cooling. In a high-temperature operation, the controller effectively cools down the otherwise hot, gaseous return refrigerant, so as to not only protect the cooling system's components and operators, but also improve cooling efficiency and capability.

We claim: 
     
         1 . A multi-channel refrigerant controller with changeable refrigerant evaporation comprising a refrigerant-channel assembly, a solenoid-valve assembly, a capillary-tube assembly and an execution controller, the refrigerant-channel assembly having two or more two-end refrigerant channels, each of the refrigerant channels having one end connected to a solenoid valve of the witching solenoid-valve assembly, the solenoid valves being connected to two-end capillary tubes of different flow capacities, respectively, opposite ends of the capillary tubes being connected to different sites on a phase-change cooling system, opposite ends of the refrigerant channels of the refrigerant-channel assembly being communicated mutually and then connected to a condensing tube and in turn a condenser of the cooling system, and the execution controller being connected to the solenoid valves, and a cooling unit and a compressor of the cooling system, respectively, for performing functional control. 
     
     
         2 . The multi-channel refrigerant controller of  claim 1 , wherein the refrigerant-channel assembly is connected to the condensing tube through one or more tees, U-pipes or distributors.