Gas compression system

Abstract

A gas compression system includes: a first-stage compressor head and a second-stage compressor head; an oil-gas separation vessel; and a sprayer disposed between the first-stage compressor head and the second-stage compressor head and configured to cool inter-stage compressed gas. The sprayer includes: a gas inlet configured to introduce compressed gas; an oil inlet configured to introduce compressor oil; and at least one oil-spraying opening configured to spray oil, which cools the inter-stage compressed gas. With the gas compression system, the sprayer can spray a mixture of oil and gas into the inter-stage compressed gas between the first-stage compressor head and the second-stage compressor head. Accordingly, by intelligently employing a characteristic of containing oil and gas in the scavenge line, an inter-stage heat exchange effect of the sprayer can be enhanced, thereby improving the performance of two-stage compression.

1 .- 20 . (canceled) 
     
     
         21 . A gas compression system, comprising:
 a first-stage compressor head and a second-stage compressor head;   an oil-gas separation vessel in communication with the second-stage compressor head and the first-stage compressor head; and   a sprayer disposed between the first-stage compressor head and the second-stage compressor head and configured to cool inter-stage compressed gas, wherein the sprayer comprises:   a gas inlet configured to introduce compressed gas;   
       an oil inlet configured to introduce compressor oil; and
 at least one oil-spraying opening configured to oil-spray cool the inter-stage compressed gas. 
 
     
     
         22 . The gas compression system according to  claim 21 , wherein the first-stage compressor head and the second-stage compressor head are formed as one piece, and the sprayer is disposed at an inter-stage stage between the first-stage compressor head and the second-stage compressor head. 
     
     
         23 . The gas compression system according to  claim 21 , further comprising an inter-stage cooling chamber disposed between the first-stage compressor head and the second-stage compressor head, wherein the sprayer is disposed in the inter-stage cooling chamber. 
     
     
         24 . The gas compression system according to  claim 21 , wherein the oil inlet of the sprayer is in communication with the oil-gas separation vessel through a first oil return pipeline. 
     
     
         25 . The gas compression system according to  claim 21 , further comprising an oil-gas separation cartridge disposed in the oil-gas separation vessel, wherein the gas inlet of the sprayer is in communication with the oil-gas separation cartridge through a scavenge line. 
     
     
         26 . The gas compression system according to  claim 21 , wherein the gas inlet of the sprayer is in communication with a gas exhaust end of the second-stage compressor head. 
     
     
         27 . The gas compression system according to  claim 21 , wherein the gas inlet of the sprayer is in communication with a gas outlet end of the oil-gas separation vessel. 
     
     
         28 . The gas compression system according to  claim 21 , wherein the sprayer comprises an inner pipe having a hollow inner chamber, and an outer pipe sleeved on the inner pipe; an outer chamber is defined by the outer pipe and the inner pipe, and the inner chamber is in communication with the outer chamber. 
     
     
         29 . The gas compression system according to  claim 28 , wherein the oil inlet is in communication with the outer chamber, the gas inlet is in communication with the inner chamber, and the at least one oil-spraying opening is defined in an outer peripheral wall of the outer pipe and in communication with the outer chamber. 
     
     
         30 . The gas compression system according to  claim 29 , wherein the gas inlet is disposed at a first end of the outer pipe and penetrates the first end of the inner pipe, and a second end of the inner pipe is located within the outer pipe. 
     
     
         31 . The gas compression system according to  claim 30 , wherein at least one oil passage hole is defined within the second end of the inner pipe and configured to communicate the inner chamber with the outer chamber. 
     
     
         32 . The gas compression system according to  claim 31 , wherein the at least one oil passage hole comprises a plurality of oil passage holes, and the plurality of oil passage holes are circumferentially and/or axially distributed along an outer peripheral wall of the inner pipe. 
     
     
         33 . The gas compression system according to  claim 29 , wherein the oil inlet is disposed on the outer peripheral wall of the outer pipe. 
     
     
         34 . The gas compression system according to  claim 29 , wherein the at least one oil-spraying opening is defined in the outer pipe and spaced apart from the oil inlet. 
     
     
         35 . The gas compression system according to  claim 34 , wherein the at least one oil-spraying opening comprises a plurality of oil-spraying openings, and the plurality of oil-spraying openings are circumferentially and/or axially distributed along the outer peripheral wall of the outer pipe. 
     
     
         36 . The gas compression system according to  claim 21 , wherein the oil-gas separation vessel is in communication with the first-stage compressor head through a second oil return pipeline ( 82 ). 
     
     
         37 . The gas compression system according to  claim 21 , wherein the oil-gas separation vessel is in communication with the second-stage compressor head through a third oil return pipeline. 
     
     
         38 . The gas compression system according to  claim 21 , further comprising an oil cooler and a filter, wherein the oil cooler and the filter are sequentially connected between the oil-gas separation vessel and the first-stage compressor head. 
     
     
         39 . The gas compression system according to any one of  claim 21 , further comprising a gas cooler, wherein a gas exhaust end of the oil-gas separation vessel is in communication with the gas cooler. 
     
     
         40 . The gas compression system according to  claim 39 , wherein the gas inlet of the sprayer is in communication with a gas exhaust end of the gas cooler.