Chiller

Abstract

The present disclosure provides a chiller including a compressor and a condenser, in which an outlet of the compressor communicates with an inlet of the condenser through a discharge pipe, a rotating shaft and a valve plate having a counterweight are further disposed in the discharge pipe, the rotating shaft is fixed on an inner wall of the discharge pipe, the valve plate can rotate around the rotating shaft, and a rotatable stroke of the valve plate includes swinging down to a first position to close the discharge pipe, and swinging up to a second position toward a side away from the outlet of the compressor to open the discharge pipe.

1 . A chiller comprising:
 a compressor;   a condenser;   a discharge pipe configured to allow an outlet of the compressor to communicate with an inlet of the condenser;   a rotating shaft fixed to an inner wall of the discharge pipe; and   a valve plate having a counterweight and configured to rotate about the rotating shaft, a rotatable stroke of the valve plate including swinging down to a first position to close the discharge pipe, and swinging up to a second position toward a side away from the outlet of the compressor to open the discharge pipe.   
     
     
         2 . The chiller according to  claim 1 , wherein the compressor is disposed above the condenser, the discharge pipe has a main body section extending in a vertical direction and a bent section formed by bending the main body section laterally, the bent section communicates with the outlet located on a side surface of the compressor, and the rotating shaft and the valve plate are both disposed in the bent section. 
     
     
         3 . The chiller according to  claim 2 , wherein the bent section further includes a horizontal section extending horizontally, and the rotating shaft and the valve plate are disposed in the horizontal section. 
     
     
         4 . The chiller according to  claim 2 , further comprising: a limiting portion formed by the inner wall of the discharge pipe extending radially inward and disposed on a side of the valve plate closer to the outlet of the compressor, wherein an outer edge of the valve plate at the first position abuts against an inner edge of the limiting portion. 
     
     
         5 . The chiller according to  claim 4 , wherein the limiting portion is an integrally formed limiting plate having a complete outer edge and connected to the inner wall of the discharge pipe over entire circumferential range. 
     
     
         6 . The chiller according to  claim 4 , wherein the limiting portion includes a side plate formed by a side portion of the inner wall of the discharge pipe extending radially inward, and a bottom plate formed by a bottom portion of the inner wall of the discharge pipe extending radially inward, a top portion of the valve plate at the first position abuts against the inner wall of the discharge pipe, a side edge of the valve plate abuts against the side plate, and a lower edge of the valve plate abuts against the bottom plate. 
     
     
         7 . The chiller according to  claim 4 , wherein the limiting portion is elastic. 
     
     
         8 . The chiller according to  claim 4 , wherein the limiting portion is fixed to the inner wall of the discharge pipe by welding. 
     
     
         9 . The chiller according to  claim 4 , wherein the limiting portion is inclined at an angle of 0° to 3° with respect to the vertical direction. 
     
     
         10 . The chiller according to  claim 1 , wherein the compressor is a centrifugal compressor. 
     
     
         11 . The chiller according to  claim 1 , wherein the valve plate swings down to the first position only by self weight that provides a driving force. 
     
     
         12 . The chiller according to  claim 1 , wherein the counterweight has a weight of 1 kg to 15 kg.