June 2015 (published: 28.05.2015)
Number 2(18)
Home > Issue > Definition of a point of injection of cooling liquid in the screw compressor
Pekarev V.I., Ivanova S.N., Safonova N. A.
In article results of theoretical experiment on definition of a point of injection of liquid working substance are given to pair cavities of the screw compressor. Also options of injection of liquid depending on an angle of rotation of the leading screw concerning the moment of closing of a window of absorption are considered. The effect from injection of liquid grows at injection closer to a forcing window. It can be explained to that the main branch of warmth comes from the compressed gas when mixing the gas which is formed at a liquid drosselirovaniye up to the pressure in a pair cavity. The optimum point of injection is defined and the conclusion that injection of liquid working substance conducts to increase in work of compression in the compressor is drawn. However in some operating modes of the screw compressor the positive effect can be useful. Besides causes interest the scheme of a maslosnabzheniye of the compressor without oil separator.
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Keywords: screw compressor, injection of working substance, injection point, efficiency.
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UDC 621.575
Definition of a point of injection of cooling liquid in the screw compressor
In article results of theoretical experiment on definition of a point of injection of liquid working substance are given to pair cavities of the screw compressor. Also options of injection of liquid depending on an angle of rotation of the leading screw concerning the moment of closing of a window of absorption are considered. The effect from injection of liquid grows at injection closer to a forcing window. It can be explained to that the main branch of warmth comes from the compressed gas when mixing the gas which is formed at a liquid drosselirovaniye up to the pressure in a pair cavity. The optimum point of injection is defined and the conclusion that injection of liquid working substance conducts to increase in work of compression in the compressor is drawn. However in some operating modes of the screw compressor the positive effect can be useful. Besides causes interest the scheme of a maslosnabzheniye of the compressor without oil separator.
Read the full article
Keywords: screw compressor, injection of working substance, injection point, efficiency.