Refrigeration system

Abstract

The present disclosure relates to the technical field of refrigeration, and in particular to a refrigeration system. The refrigeration system includes a compressor, an oil separator, and an evaporator, and the refrigeration system further includes a degasser, an input pipeline, and a first output pipeline, in which the degasser is in communication with the mixture outlet of the oil separator through the input pipeline, and is in communication with the inlet of the compressor through the first output pipeline. The refrigeration system can reduce a viscosity of a lubricating oil circulating in the system and improve a lubricating effect and a service life of equipment such as a compressor while achieving efficient oil-gas separation.

1 . A refrigeration system comprising:
 a compressor;   an oil separator including an inlet in communication with an outlet of the compressor, a refrigerant gas outlet, and a mixture outlet;   an evaporator including an inlet in communication with the refrigerant gas outlet of the oil separator and an outlet in communication with an inlet of the compressor;   a degasser; an input pipeline; and a first output pipeline, wherein the degasser is in communication with the mixture outlet of the oil separator through the input pipeline, and is in communication with the inlet of the compressor through the first output pipeline.   
     
     
         2 . The refrigeration system according to  claim 1 , wherein the input pipeline is provided with a first throttle valve, and the first output pipeline is provided with a second throttle valve. 
     
     
         3 . The refrigeration system according to  claim 2 , wherein the degasser includes a degassing vessel and a heater provided in the degassing vessel. 
     
     
         4 . The refrigeration system according to  claim 3 , further comprising: a second output pipeline, wherein one end of the second output pipeline is connected to a bottom portion of the degassing vessel, and the other end of the second output pipeline is connected to the compressor. 
     
     
         5 . The refrigeration system according to  claim 3 , wherein the first throttle valve adjusts a flow rate in the input pipeline, and the second throttle valve adjusts a flow rate in the first output pipeline, such that a pressure in the degassing vessel is greater than a pressure in the first output pipeline. 
     
     
         6 . The refrigeration system according to  claim 5 , wherein the first throttle valve adjusts the flow rate in the input pipeline, and the second throttle valve adjusts the flow rate in the first output pipeline, such that a pressure P m  in the degassing vessel, a pressure P s  in the first output pipeline, and a pressure P d  in the input pipeline satisfy the following relationship: 
       
         
           
             
               
                 
                   P 
                   m 
                 
                 = 
                 
                   
                     P 
                     s 
                   
                   + 
                   
                     n 
                     ⋆ 
                     
                       ( 
                       
                         
                           P 
                           d 
                         
                         - 
                         
                           P 
                           s 
                         
                       
                       ) 
                     
                   
                 
               
               , 
             
           
         
         where n∈[0.1, 0.5]. 
       
     
     
         7 . The refrigeration system according to  claim 5 , wherein the degasser further includes an oil level sensor provided in the degassing vessel, a pressure sensor that measures a pressure in the degassing vessel, and a temperature sensor that measures an oil temperature in the degassing vessel. 
     
     
         8 . The refrigeration system according to  claim 1 , wherein the first output pipeline is connected to the outlet of the evaporator. 
     
     
         9 . The refrigeration system according to  claim 2 , wherein the first throttle valve and the second throttle valve operate in response to any detection result of the oil level sensor, the pressure sensor, and the temperature sensor.