compressor basis
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Compressor basisTRANSCRIPT
pág. 1
01/04/2009
INDUSTRIAL COMPRESSOR BASIS
Julián Sáez Mateo
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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Índice
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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Índice
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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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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Índice
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
pág. 16 Juliian Saez ([email protected]) http://www.slideshare.net/julsaez/cv-julian-saez
Índice
3. Methods of capacity control for the Principal types of Compressors
pág. 17 Juliian Saez ([email protected]) http://www.slideshare.net/julsaez/cv-julian-saez
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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5. Speed and flow capacity ranges of standard compressor drives
(1 ft3/min = 1,7 m3/h)
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6. Centrifugal compressors
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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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6. Centrifugal Compressors
Impeller – Diffuser
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6. Centrifugal Compressors
Diffuser
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6. Centrifugal Compressors
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Sources
Photos and Illustrations:
Photos of compressors taken from internet
Explanations:
Instrument Engineers Handbook-Fourth
Edition