Cooling system for reciprocating compressors and a reciprocating compressor

Abstract

Cooling system for reciprocating compressors comprising an atomizing nozzle ( 1 ) that supplies an atomized lubricating fluid inside the compressor cylinder ( 2 ), a heat exchanger ( 6 ) intended for cooling the lubricating fluid to be atomized at the nozzle ( 1 ), a fluid separator ( 5 ) for separating a mixture of cooling fluid and lubricating fluid and directing the lubricating fluid back from the system, and a blocking element ( 7 ) arranged between the atomizing nozzle ( 1 ) and the heat exchanger ( 6 ) to prevent the buildup of lubricating fluid in the cylinder. Reciprocating compressor having the cooling system as described.

1 . A cooling system for an alternating-type compressor ( 10 ), the compressor comprising a housing ( 11 ) and a compressor chamber ( 2 ) inside the housing ( 11 ), CHARACTERIZED in that it comprises:
 an atomizing nozzle ( 1 ), which supplies an atomized lubricating fluid inside the compressor cylinder;   a heat exchanger ( 6 ) designed to cool the lubricating fluid to be atomized at the nozzle ( 1 );   a fluid separator ( 5 ) to separate a mixture of refrigerating fluid and lubricating fluid and direct the lubricating fluid back from the system; and   a blocking element ( 7 ) to prevent the build-up of lubricating fluid in the cylinder.   
     
     
         2 . A cooling system, according to  claim 1 , CHARACTERIZED in that the blocking element ( 7 ) is arranged between the atomizing nozzle ( 1 ) and the heat exchanger ( 6 ). 
     
     
         3 . A cooling system, according to  claim 1 , CHARACTERIZED in that the blocking element ( 7 ) is integrated to the injecting nozzle ( 1 ). 
     
     
         4 . A cooling system, according to any of  claims 1  to  3 , CHARACTERIZED in that the blocking element ( 7 ) is a blocking valve. 
     
     
         5 . A cooling system, according to any of  claims 1  to  3 , CHARACTERIZED in that the blocking element is an electric blocking element. 
     
     
         6 . A cooling system, according to any of  claims 1  to  3 , CHARACTERIZED in that the blocking element is an electronic blocking element. 
     
     
         7 . A cooling system, according to any of  claims 1  to  6 , CHARACTERIZED in that the blocking element ( 7 ) is arranged inside the housing ( 11 ). 
     
     
         8 . A cooling system, according to any of  claims 1  to  7 , CHARACTERIZED in that the fluid separator ( 5 ) receives the mixture of cooling fluid and lubricating fluid discharged from the compression chamber ( 2 ) and directs the lubricating fluid back to the heat exchanger ( 6 ). 
     
     
         9 . A cooling system, according to any of  claims 1  to  7 , CHARACTERIZED in that the fluid separator ( 5 ) receives the mixture of cooling fluid and lubricating fluid from the heat exchanger ( 6 ) and directs the lubricating fluid back to the blocking element ( 7 ). 
     
     
         10 . A cooling system, according to any of  claims 1  to  7 , CHARACTERIZED in that the lubricating fluid separator ( 5 ) and the heat exchanger ( 6 ) comprise a single component. 
     
     
         11 . A cooling system, according to  claim 9 , CHARACTERIZED in that the single component is arranged inside the housing ( 11 ). 
     
     
         12 . A cooling system, according to any of  claims 1  to  8 , CHARACTERIZED in that the lubricating fluid separator ( 5 ) is arranged inside the housing ( 11 ). 
     
     
         13 . A cooling system, according to any of  claims 1  to  8 , CHARACTERIZED in that the heat exchanger ( 6 ) is arranged inside the housing ( 11 ). 
     
     
         14 . A cooling system, according to any of  claims 1  to  8 , CHARACTERIZED in that the lubricating fluid separator ( 5 ) and the heat exchanger ( 6 ) are arranged inside the housing ( 11 ). 
     
     
         15 . A cooling system, according to  claim 13  or  14 , CHARACTERIZED in that the heat exchanger is arranged in the space in the housing ( 11 ) intended for storing the lubricating fluid, the heat exchanger ( 6 ) being submerged in the lubricating fluid. 
     
     
         16 . A cooling system, according to any of  claims 1  to  15 , CHARACTERIZED in that the injecting nozzle ( 1 ) dispensing end touches lightly the sidewall of the compressor ( 10 ) cylinder block. 
     
     
         17 . A cooling system, according to any of  claims 1  to  15 , CHARACTERIZED in that the injecting nozzle ( 1 ) dispensing end is arranged on the compressor ( 10 ) valve plate. 
     
     
         18 . An alternating compressor ( 10 ), CHARACTERIZED in that it is of the type comprising a cooling system as defined in any of  claims 1  to  17 .