Elevated centrifugal compressor

EXHIBIT 4-1 Elevated Centrifugal Compressor with a Single Condensing Steam Turbine Drive... 

EXHIBIT 4-2 Elevated Centrifugal Compressor with Multiple Condensing Steam Turbine Drives... 

For centrifugal compressors, nozzle orientation must be specified. If the compressor is on an elevated foundation, the down-nozzle orientation makes maintenance much easier, because major piping does not have to be removed to lift the casing upper half. Figure 11-1 shows an unusual case where all the nozzles are in the upper casing half. 

Figure 76. Liquid film shaft seal with nlindrkwl hushing lor a high-pressure centrifugal compressor a) Shaft b) Bearing c) Pressure side d) Ambient side e) Floating seal rings f) Sea) oil surge vessel g) Sea) oil h) Lube oil i) Drain to gas-oil separaior k) Drain lo lube oil tank l) Elevation for seal oil head...

Fig. 14.3 Centrifugal compressor installation. Note that the designer has chosen to locate the connecting piperack on a level above the compressor this provides the facility to anchor the piping loads caused by thermal expansion, and also maximizes access to the compressor (while minimizing the elevation). Note also the bypass control valve for surge protection...

Devices which are used for transporting fluids (liquids and gases) may be divided into pumps, ejectors, injectors, elevators, conveyors, air and gas pressure devices (such as acid eggs, air lifts, pulsometers etc). Pumps may be divided into piston (reciprocating), centrifugal, propeller, rotary-displacement, density, impact and momentum and turbine pumps. Pumps which are used for compressing gases are called "compressors ... 

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