13
G OVERNMENT P OLYTECHNIC , V YARA SUBJECT :- THERMAL ENGINEERING - 1 PRESENTATION SUBJECT :- R OTAR Y S CRE W A I R C OMPRESSO R PREPARED BY :- JAYKUMAR R. SONAR ENROLLMENT NO :- 149740319047 GUIDED BY :- MR. A .V. KUNADIA

Rotary screw air compressor

Embed Size (px)

Citation preview

Page 1: Rotary screw air compressor

GOVERNMENT POLYTECHNIC , VYARA

SUBJECT :- THERMAL ENGINEERING - 1

PRESENTATION SUBJECT :- ROTARY SCREW AIR COMPRESSOR

PREPARED BY :- JAYKUMAR R. SONAR

ENROLLMENT NO :- 149740319047

GUIDED BY :-

MR. A .V. KUNADIA

Page 2: Rotary screw air compressor

ROTARY SCREW AIR COMPRESSOR

in rotary screw air compressors, the most important part is the screw unit. For this reason they are called as rotary screw.

When compressor start running, firstly, it raises the compressor’s inside pressure approximately 1-2 bar.

Page 3: Rotary screw air compressor
Page 4: Rotary screw air compressor

It consist of two screws - one with convex and the other with concave contour mostly called male and female rotor respectively.

These two screws gets rotating by means of gear trips there by sucking the air through an inlet port in chamber and then compressing the same.

Page 5: Rotary screw air compressor

Thus compression begins and air is discharged at the end of other side.

There is no contact between male and female rotors and casing. Hence no lubrication require but oil may injected for the purpose of cooling.

Page 6: Rotary screw air compressor

DETAILS OF SCREW COMPRESSOR

Page 7: Rotary screw air compressor

The helix of the male and female rotor screw is designed to permit complete charging of the inter lobe space before the re-mesh.

On completion of the filling operation the inlet end of male and female lobes begins to re-engage thus reduces the volume of air continuously.

Page 8: Rotary screw air compressor

CLASSIFICATION OF AIR COMPRESSOR

Page 9: Rotary screw air compressor

There are many different types of rotary screw air compressors based on :-

1. Stages2. cooling method3. drive type.

COOLING METHODS :-

1. Oil-free compressors2. Oil-Injected Compressors

Page 10: Rotary screw air compressor

Advantages :-  Screw air compressors are designed as quiet

by the manufacturers.

More efficient than reciprocating compressors.

Screw air compressors can reach high capacities that piston compressors cannot.

These compressors are the high technology products.

If services done completely, they are long lived.

Page 11: Rotary screw air compressor

Disadvantages :-

Screw air compressors are more expensive than reciprocating air compressors.

 

Page 12: Rotary screw air compressor

Did you know?

  Rotary screw technology is the same

technology utilized by superchargers in high-performance engines !

 

Page 13: Rotary screw air compressor

THANK YOU