Abu Dhabi Gas Liquefaction Company Ltd Job Training Mechanical Technician Course Module 9 Compressors
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- 10 Glossary
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Figure 8.1(a) shows the drawing of the Old BOG compressor arrangement you saw in
Section 4.1.5 . In Figure 8.1(b) you can see the diagrammatic version of the same compressor with knockout drums, snubbers and coolers added. Figure 8.1: Comparison between Simplified Drawing and PFD of Old BOG Compressor (b) Old BOG Compressor—PFD showing Auxiliary Equipment Now try Exercise 8 Compressor stage 1 Suction KO Drum Discharge KO drum Compressor stage 2 Stage 2 suction snubber Stage 1 discharge snubber Stage 2 discharge snubber Stage 3 suction snubber Intercooler Intercooler Aftercooler Stage 1 suction snubber Compressor stage 3 (a) Old BOG Compressor—Simplified Drawing MP S tag e- 2 HP St ag e- 3 Crank Case LP S ta g e-1 HP discharge gas to Trains I and II regenerators L P S tage-1 LP suction from LNG Tanks (including ship’s tanks) Personnel & Training Division Job Training—Mechanical Technician Compressors/Rev. 0.0 Page 88 of 90 9 Summary In this module you have looked at the different designs of compressors that are available. You have looked in more detail at the main reciprocating and centrifugal compressors used on the ADGAS plant and you should now have seen these on site visits. You should be able to identify most of the compressors on the plant and know how each one functions. You should be able to describe how casings are connected for different stages of compression and the purposes of compressor auxiliary equipment. From the information in this module and from that in the Pumps module you should know where to look for wear and damage when you are maintaining a compressor. You should also know what is meant by compressor surge. More detailed information about seals and heat exchangers is given in other modules in this course. Personnel & Training Division Job Training—Mechanical Technician Compressors/Rev. 0.0 Page 89 of 90 10 Glossary Here are some words used in this module that might be new to you. You will find these words in coloured italics in the notes. There is a short definition in a box near the word in the notes. Download 0.5 Mb. Do'stlaringiz bilan baham: 
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