초록 ▼

Where a helical screw compressor gas or vapor working fluid is not too soluble in the compressor lubricant for compression process cooling, such lubricant after separation from the working fluid and cooled to as a low a temperature as possible and operating at as high a pressure as possible, is fed

Where a helical screw compressor gas or vapor working fluid is not too soluble in the compressor lubricant for compression process cooling, such lubricant after separation from the working fluid and cooled to as a low a temperature as possible and operating at as high a pressure as possible, is fed to an atomizing nozzle and injected into the inlet end of the compressor. This produces a cloud type blanket of cool atomized droplets uniformly dispersed within the suction vapor or gas allowing the highest possible rate of heat transfer to occur during the compression process and achieving the highest possible isothermal efficiency in a gas compression system or operation near vapor saturation values in a refrigeration vapor compression system while avoiding large hydraulic losses in the compressor. Working fluids such as helium, air, and ammonia may provide extremely high superheated gas or vapor at the compressor inlet.

대표청구항 ▼

In a gas or vapor compression system including: a helical screw compressor for compressing a gas or vapor working fluid, said compressor comprising: a compressor casing including parallel, side-to-side intersecting bores, end plates at the ends of said bores closing off the ends of said casing, inte

In a gas or vapor compression system including: a helical screw compressor for compressing a gas or vapor working fluid, said compressor comprising: a compressor casing including parallel, side-to-side intersecting bores, end plates at the ends of said bores closing off the ends of said casing, intermeshed helical screw rotors mounted for rotation within said bores for rotation about their axes and defining with said casing a compression chamber therebetween, means defining a low pressure suction port and a high pressure discharge port within said compressor opening to said intermeshed helical screw rotors at opposite ends thereof, means for feeding a low pressure working fluid suction gas or vapor to said suction port for compression within said compression chamber, the improvement comprising: atomizing nozzles carried by said compressor opening to said low pressure working fluid suction gas or vapor prior to compression, and means for supplying a cooling liquid at a pressure higher than compression suction pressure for atomizing within said nozzles at a flow rate sufficient to produce a cloud type blanket of cool atomized liquid droplets uniformly dispersed within the suction gas or vapor for allowing the highest possible rate of heat transfer to occur between the cooling liquid and the working fluid during the compression process to effect the highest possible isothermal efficiency of the compressor when in a gas compression system or for compression process operation at near vapor saturation value in a vapor compression system while avoiding large hydraulic losses in the compressor.