Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems
screw compressors
Construction, Operation, Advantages, Ranges
Screw compressors are used in many applications where medium pressures (< 10 bar) and medium volumes of air (upto 5000 m3/hr) are required.
SCREW COMPRESSORS Screw compressors are used in many applications where medium pressures (< 10 bar) and medium volumes of air (upto 5000 m3/hr) are required. The construction and operation of a screw compressor is very similar to a hydraulic screw pump described in Section 4.11. A typical screw lobe compressor having unsymmetrical profile of screw rotors is illustrated in Fig.11.5. As shown in Fig.11.5, it consists of two screws-one with convex and the other with concave contour, generally called male and female rotor respectively. Also a minimal clearance is maintained between the two intermeshing rotating screws. As the screws rotate, air is sucked into the housing through the inlet port. The sucked air is trapped between the screws and carried along to the outlet port. The advantages of screw compressors are: 1. Simplicity. 2. Fewer moving parts rotating at a constant speed. 3. Steady delivery of air without pressure pulses. The single-stage screw compressors are available with capacities upto 2500 m3/hr and pressures of 8 bars.1. Construction
2. Operation
3. Advantages
4. Ranges
Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems : Tag: : Construction, Operation, Advantages, Ranges - screw compressors
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation