Technology Research on Precise Liquid Supply from inside the Star Wheel Tooth to the Tooth Sides in Single Screw Compressor
Single screw compressors have good mechanical properties,large single machine capacity,simple structure,and few vulnerable parts.It has shown good application prospect in oil-free air compression,low temperature heat pump,water vapor compression and many other fields.The meshing pair composed of star wheel teeth and screw grooves was the core part of single screw compressor,which must have good lubrication.Otherwise it would be easy to wear due to high-speed sliding.Liquid injection was commonly used in the single screw compressor.However,in some special areas,injecting liquid(such as water)might decrease the discharge parameters.In order to reduce the liquid injection amount of single screw compressor and ensureits reliable lubrication,a new liquid injection lubrication structure of the meshing pair of the star wheel tooth and screw groove of single screw compressor as well as its design method were proposed in this paper.The flow and heat transfer procoss of the liquid in the grooves was simulated with FLUENT,which verified the rationality of the structure and its design methods.The research has provided a technical scheme for development of single screw compressor to high speed compressor and steam compressor.
single screw compressormeshing pairliquid injection lubricationFLUENT
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