Turbo compressor and turbo refrigerating machine

Abstract

A turbo compressor which is provided with a lubricant spray nozzle which is disposed to penetrate a housing and sprays a lubricant toward a bearing accommodated in the housing, and an external manifold which is detachably mounted on the housing and supports the lubricant spray nozzle outside of the housing is adopted.

1 . A turbo compressor comprising:
 a lubricant spray nozzle which is disposed to penetrate a housing and sprays a lubricant toward a sliding site accommodated in the housing;   a support member which is detachably mounted on the housing and supports the lubricant spray nozzle outside of the housing; and   a cover member which covers the sliding site in the interior of the housing and has a through-hole,   wherein the lubricant spray nozzle is disposed to pass through the through-hole.   
     
     
         2 . The turbo compressor according to  claim 1 , wherein the housing is configured by connecting a compressor housing on which the support member is mounted and an electric motor housing on which the cover member is mounted, by a plurality of bolts, and
 the support member is provided with an eaves part which covers a head portion of at least one bolt among the plurality of bolts when the support member is mounted on the compressor housing.   
     
     
         3 . The turbo compressor according to  claim 2 , wherein the eaves part has a hook shape and bumps against the electric motor housing in a connection release direction of the housing. 
     
     
         4 . The turbo compressor according to  claim 1 , wherein the support member is a lubricant manifold having an oil supply passage which communicates with at least the lubricant spray nozzle. 
     
     
         5 . The turbo compressor according to  claim 1 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion weighs less than the body pipe portion.   
     
     
         6 . The turbo compressor according to  claim 1 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion is formed of a material having smaller specific gravity than the body pipe portion.   
     
     
         7 . A turbo refrigerating machine comprising:
 a condenser which liquefies a compressed refrigerant;   an evaporator which evaporates the refrigerant liquefied by the condenser, thereby cooling a cooling object; and   the turbo compressor according to  claim 1 , which compresses the refrigerant evaporated by the evaporator and supplies the compressed refrigerant to the condenser.   
     
     
         8 . The turbo compressor according to  claim 2 , wherein the support member is a lubricant manifold having an oil supply passage which communicates with at least the lubricant spray nozzle. 
     
     
         9 . The turbo compressor according to  claim 3 , wherein the support member is a lubricant manifold having an oil supply passage which communicates with at least the lubricant spray nozzle. 
     
     
         10 . The turbo compressor according to  claim 2 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion weighs less than the body pipe portion.   
     
     
         11 . The turbo compressor according to  claim 3 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion weighs less than the body pipe portion.   
     
     
         12 . The turbo compressor according to  claim 4 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion weighs less than the body pipe portion.   
     
     
         13 . The turbo compressor according to  claim 2 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion is formed of a material having smaller specific gravity than the body pipe portion.   
     
     
         14 . The turbo compressor according to  claim 3 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion is formed of a material having smaller specific gravity than the body pipe portion.   
     
     
         15 . The turbo compressor according to  claim 4 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion is formed of a material having smaller specific gravity than the body pipe portion.   
     
     
         16 . The turbo compressor according to  claim 5 , wherein the lubricant spray nozzle is provided with a body pipe portion which is disposed to penetrate the housing, and a nozzle portion which is connected to an end portion of the body pipe portion, and
 the nozzle portion is formed of a material having smaller specific gravity than the body pipe portion.