Compressor, especially screw compressor, and refrigeration circuit with a compressor

Abstract

The present invention relates to a compressor, in particular a screw compressor (2) for compressing a working medium, comprising an outer housing (10) with an inlet opening (11), an outlet opening (12) and a longitudinal axis (X), a drivable compression device (20) arranged in the outer housing (10) and having at least one rotatable rotor (25), and at least one compressor outlet (50), wherein the at least one compressor outlet (50) conducts the working medium compressed by the compression device (20) into an interior space (45) arranged in the outer housing (10), wherein a first demister (60) is arranged in the interior space (45), and wherein the at least one compressor outlet (50) is oriented towards the first demister (60) in order to cause the compressed working medium to flow to the first demister (60). Furthermore, the present invention relates to a refrigeration system (1) having a screw compressor (2).

1 . A compressor, in particular a screw compressor ( 2 ), for compressing a working medium, comprising
 an outer housing ( 10 ) with an inlet opening ( 11 ), an outlet opening ( 12 ) and a   longitudinal axis (X),   a drivable compression device ( 20 ) arranged in the outer housing ( 10 ) and having at least one rotatable rotor ( 25 ), and   at least one compressor outlet ( 50 ),   wherein the at least one compressor outlet ( 50 ) conducts the working medium compressed by the compression device ( 20 ) into an interior space ( 45 ) arranged in the outer housing ( 10 ),   wherein a first demister ( 60 ) is arranged in the interior space ( 45 ), and   wherein the at least one compressor outlet ( 50 ) is oriented towards the first demister ( 60 ) in order to cause the compressed working medium to flow to the first demister ( 60 ).   
     
     
         2 . The compressor according to  claim 1 , characterized in that the first demister ( 60 ) is arranged on a media-impermeable wall ( 62 ) that is arranged on the side of the first demister ( 60 ) facing away from the at least one compressor outlet ( 50 ). 
     
     
         3 . The compressor according  claim 1 , characterized in that the media-impermeable wall ( 62 ) is formed by a first holder ( 64 ) or by the outer housing ( 10 ). 
     
     
         4 . The compressor according to  claim 1 , characterized in that the at least one compressor outlet ( 50 ) is oriented towards the first demister ( 60 ) in at least one outlet direction (R) and in that the first demister ( 60 ) is arranged spaced apart from the outer housing ( 10 ) along the at least one outlet direction (R). 
     
     
         5 . The compressor according to  claim 1 , characterized in that the first demister ( 60 ) is arranged in a plane substantially transverse to the at least one outlet direction (R). 
     
     
         6 . The compressor according to  claim 5 , characterized in that the first demister ( 60 ) is arranged spaced apart from the outer housing ( 10 ) in the plane substantially transverse to the at least one outlet direction (R) in at least one direction on the plane, or in that the first demister ( 60 ) abuts the outer housing ( 10 ) in the plane substantially transverse to the at least one outlet direction (R) in at least one direction on the plane. 
     
     
         7 . The compressor according to  claim 1 , characterized in that at least one second demister ( 70 ) is arranged in the interior space ( 45 ) in a flow path between the compressor outlet ( 50 ) and the outlet opening ( 12 ). 
     
     
         8 . The compressor according to  claim 1 , characterized in that the at least one compressor outlet ( 50 ) is passed through the at least one second demister ( 70 ). 
     
     
         9 . The compressor according to  claim 1 , characterized in that the at least one second demister ( 70 ) comprises a second holder ( 74 ) and in that the second holder ( 74 ) has at least one through-opening ( 75 ) through which the working medium (M) can flow from the at least one compressor outlet ( 50 ) to the outlet opening ( 12 ). 
     
     
         10 . The compressor according to  claim 1 , characterized in that the at least one through-opening ( 75 ) is polygonal, preferably hexagonal. 
     
     
         11 . The compressor according to  claim 1 , characterized in that the second holder ( 74 ) has a first section ( 71 ) and a second section ( 72 ), wherein the first section ( 71 ) has the at least one through-opening ( 75 ) and wherein the second section ( 72 ) is designed to be media-impermeable. 
     
     
         12 . The compressor according to  claim 1 , characterized in that the second holder ( 74 ) has at least one cut-out ( 76 ) through which the at least one compressor outlet ( 50 ) is passed. 
     
     
         13 . The compressor according to  claim 1 , characterized in that the first section ( 71 ) and the second section ( 72 ) are arranged on diametrical sides of the at least one cut-out ( 76 ). 
     
     
         14 . The compressor according to  claim 1 , characterized in that the at least one second demister ( 70 ) is attached to the at least one compressor outlet ( 50 ) and/or to the outer housing ( 10 ). 
     
     
         15 . The compressor according to  claim 1 , characterized in that the first demister ( 60 ) is arranged spaced apart from the at least one compressor outlet ( 50 ) at a first distance (A 1 ) in the at least one outlet direction (R). 
     
     
         16 . The compressor according to  claim 1 , characterized in that the at least one second demister ( 70 ) is arranged spaced apart from the first demister ( 60 ) at a second distance (A 2 ) and in that a first distance (A 1 ) between the at least one compressor outlet ( 50 ) and the first demister ( 60 ) is smaller than the second distance (A 2 ). 
     
     
         17 . The compressor according to  claim 1 , characterized in that the first demister ( 60 ) and/or the at least one second demister ( 70 ) comprises or comprise a wire mesh ( 68 ,  78 ), wherein the wire mesh is preferably made of flat wire or round wire. 
     
     
         18 . The compressor according to  claim 1 , characterized in that the outer housing ( 10 ) comprises a pressure bell ( 40 ) forming the interior space ( 45 ) and in that the first demister ( 60 ) and/or the at least one second demister ( 60 ) is or are arranged in the pressure bell ( 40 ). 
     
     
         19 . The compressor according to  claim 1 , characterized in that the outlet opening ( 12 ) is arranged spaced apart from a free end ( 52 ) of the at least one compressor outlet ( 50 ) against the outlet direction (R). 
     
     
         20 . The compressor according to  claim 1 , characterized in that an oil sump can be formed in a lower region ( 41 ) of the interior space ( 45 ). 
     
     
         21 . The compressor according to  claim 20 , characterized in that the first demister ( 60 ) projects into the oil sump. 
     
     
         22 . The compressor according to  claim 1 , characterized in that the at least one, preferably tubular, compressor outlet ( 50 ) protrudes from the compression device ( 20 ). 
     
     
         23 . The compressor according to  claim 1 , characterized in that at least two compressor outlets ( 50 ) are arranged and in that the at least two compressor outlets ( 50 ) are arranged parallel and spaced apart from one another. 
     
     
         24 . The compressor according to  claim 1 , characterized in that the compressor is a screw compressor ( 2 ), and in that the compression device ( 20 ) comprises the at least one rotor ( 25 ), which is preferably arranged parallel to the longitudinal axis (X). 
     
     
         25 . The compressor according to  claim 1 , characterized in that a control slide is provided that is displaceable in a direction parallel to the longitudinal axis by an actuating unit ( 92 ). 
     
     
         26 . The compressor according to  claim 1 , characterized in that the actuating unit ( 92 ) is arranged between the at least two compressor outlets ( 50 ). 
     
     
         27 . A refrigeration system ( 1 ) having a compressor, in particular a screw compressor ( 2 ), according to  claim 1 .