Compressor basis

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pág. 1 01/04/2009 INDUSTRIAL COMPRESSOR BASIS Julián Sáez Mateo [email protected] http://www.slideshare.net/julsaez/cv-julian-saez

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Compressor basis

Transcript of Compressor basis

Page 1: Compressor basis

pág. 1

01/04/2009

INDUSTRIAL COMPRESSOR BASIS

Julián Sáez Mateo

[email protected]

http://www.slideshare.net/julsaez/cv-julian-saez

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Index

1.Introduction

2.Compressor types used in processing plants

3.Methods of capacity control for the Principal types of Compressors

4.Flow capacities and discharge pressures for different compressor types

5.Speed and flow capacity ranges of standard compressor drives

6.Centrifugal compressors

Índice

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Índice

1. Introduction

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1. Introduction

- The transportation of vapors and gases, as well as the set of required pressure in different equipment and lines (reactors, instrument air lines ..etc) is an important portion of the total operating cost of processing plants

- The optimization of this unit operation can substantially lower the total operating cost of the plant

- Compressors are gas transportation machines that perform the function of increasing the gas pressure by confinement or by kinetic energy conversion

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Índice

2. Compressor types used in processing

plants

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2. Compressor types used in processing plants

-Principal types of compressors used in processing plants:

-Positive-displacement (pressurize gases through confinement) - Rotary (blower, helical-screw, lobe, sliding vane, liquid

ring)- Reciprocating

- Dynamic compressors (pressurize gases by acceleration)-Centrifugal

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2. Compressor types used in processing plants

Blower http://en.wikipedia.org/wiki/Centrifugal_fan

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2. Compressor types used in processing plants

Sliding vane compressor http://www.compair.com/About_Us/Compressed_Air_Explained--03Types_of_compressors.aspx

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2. Compressor types used in processing plants

Liquid ring compressor http://www.simerics.com/animation/ring_pump_gas.gif

Typically used as a vacuum pump but can also be used as a gas compressor

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Índice

2. Compressor types used in processing plants

Helical-screw compressor http://www.staff.city.ac.uk/~sj376/pr_3d.gif

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Índice

2. Compressor types used in processing plants

Lobe compressor http://www.simerics.com/animation/lobe_compressor_ani.gif

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2. Compressor types used in processing plants

Reciprocating compressorhttp://patcelte.chez-alice.fr/animations/pist.gif

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2. Compressor types used in processing plants

Axial compressorhttp://en.wikipedia.org/wiki/Axial_compressor

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2. Compressor types used in processing plants

Centrifugal compressorhttp://www.saephils.com/products/aircompressors/images/aircomptypes/rotation_model.gif

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Índice

3. Methods of capacity control for the

Principal types of Compressors

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Índice

3. Methods of capacity control for the Principal types of Compressors

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Índice

4. Flow capacities and discharge

pressures for different compressor

types

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Índice

4. Flow capacities and discharge pressures for different compressor types

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Índice

5. Speed and flow capacity ranges of

standard compressor drives

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Índice

5. Speed and flow capacity ranges of standard compressor drives

(1 ft3/min = 1,7 m3/h)

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Índice

6. Centrifugal compressors

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Índice

6. Centrifugal CompressorsThe centrifugal compressor is a machine that converts the momentum of gas into a pressure head

The dynamic compressor achieves a pressure rise by adding kinetic-energy/velocity to a continuous flow of fluid through the rotor or impeller

This kinetic energy is then converted to an increase in static pressure by slowing the flow through a diffuser

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Índice

6. Centrifugal Compressors

Rotor or impeller

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Índice

6. Centrifugal Compressors

Impeller – Diffuser

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Índice

6. Centrifugal Compressors

Diffuser

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Índice

6. Centrifugal Compressors

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Índice

Sources

Photos and Illustrations:

Photos of compressors taken from internet

Explanations:

Instrument Engineers Handbook-Fourth

Edition