Pipelines 6

ULTRASONIC INSPECTION TOOLS

1AUGUST 2014

COMPRESSION STATION

What is the function of the compression station?

Compression station is a system or arrangement of several

components located at intervals along a main pipeline to

maintain continues flow of the gas.

2AUGUST 2014

COMPRESSION STATION

What is the function of the compression station?

3AUGUST 2014

COMPRESSION STATION

4AUGUST 2014

COMPRESSION STATION

What are the basic components of the compression station?

1. Gas receivers (tanks)

2. Gas scrubbers

3. Pressure pulsation dampeners

4. Gas compressors

5. Gas cooling system

6. Metering system

7. Piping system, control, safety and isolating valves

5AUGUST 2014

COMPRESSION STATION

6

Compressors

Dynamic Positive Displacement

Axial Flow Centrifugal Reciprocating Rotary positive Dis.

Screw

Lobe

Sliding Vanes

Liquid ring

AUGUST 2014

7

POSITIVE DISPLACEMENT COMPRESSORS CLASSIFICATION

It can be divided into two subgroups:

1. Reciprocating positive displacement compressors

2. Rotary positive displacement compressors

AUGUST 2014

8

ROTARY POSITIVE DISPLACEMENT COMPRESSORS

Rotary positive displacement compressors include:

1. Screw compressors

2. Lobe compressors

3. Sliding vane compressors

4. Liquid ring compressors

AUGUST 2014

9

DOUBLE ACTING COMPRESSOR

AUGUST 2014

10

DOUBLE ACTING COMPRESSOR COMPONENTS

AUGUST 2014

11

ROTATING AND OSCILLATING COMPONENTS

1. Crankshaft and the connecting rod converts the rotary motion of the

crankshaft into reciprocating motion of Crosshead.

2.Piston rod transmits this reciprocating motion to the piston head. The

piston head reciprocate in the cylinder

12

MULTI – STAGE RECIPROCATING COMPRESSOR

AUGUST 2014

13

RECIPROCATING COMPRESSOR PRESSURE PULSATION DRUMS

Gas scrubber and pressure pulsation drum on the suction side and pressure pulsation dampener on discharge side

AUGUST 2014

RECIPROCATING COMPRESSOR PRESSURE PULSATION DRUMS

14AUGUST 2014

15

RECIPROCATING COMPRESSOR PRESSURE PULSATION DRUMS

AUGUST 2014