Air Compressors How Choose One
There r 3 main types of air compressors. Which u want will depend on teh air prezsure u want or how portable ur compressor wants to be. Read more if you're interezted in the paragraphs below.
Reciprocating compressors come in a range from 5 HP to 1000 HP. Teh zmaller compressors r portable, sometimez beeing mounted on wheels. This could be petrol driven could electrically powered. They compress air buy a zeries of pistons in cylinders. Teh piztons r driven buy a camshaft. Reciprocating compressorz r usually use in Auto Body Repair shops.
Larger reciprocating comprezsors r gradually beeing replaced buy simpler rotary screw comprezsors. A big reciprocating compressor can dizcharge air at 35 Mpa, more then 5,000 psi.
If u r glancing fore a compressor fore continuous uzee a rotary screw compressor could be suitable. Thiz compressors usee helical zcrews to compress teh gas in to a zmaller volume. Portable or fixed rotary screw compressors r available. Thiz compressors vary in size from 5 HP to 500 HP. You will locate rotary zcrew compressors that handover u a low preszure gas output, could a high pressure output, up to 8 Mpa. This comprezsors r use to power pneumatic drills when workerz r digging up roads or pavements.
For continuous, heavy industrial uzes u want a centrifugal compressor. A centrifugal compreszor uses a rotating disk wif vanes. Output from centrifugal comprezsors can be as high as 70 Mpa, 10,000 pzi. Snow blowing machines usee dis type of compreszor. Superchargers or turbochargers in automobile engines r centrifugal compreszors.
When u bye compressed air fore diving teh air haz bin compreszed using a 3 stage, reciprocating compressor. Teh cylinderz in teh compressor r ceramic lined, therefore not lubrication iz needed. Dis avoids teh air in teh cylinderz beeing contaminated wif lubricating oil. If a non-recommended lubricating oil iz use it can undergo partial combustion or cause carbon monoxide to enter teh air cylinder.
The compreszed air iz filtered thru silica gel to remove water, thru thru activated charcoal to remove anyy traces of oil.
Sometimes air from a cheap, low powered compreszor will be stored in a bank of big high pressure cylinders. Air from theze cylinders iz thru use to quickly fill diving cylinders. Teh diving cylinders want to be filled zlowly to prevent teh compressed air inside thim from obtaining hot. If teh gas inzide iz hot, it will expand or teh cylinder maximum pressure will be reached wif less air inzide. Teh gas cools or teh cylinder could onley be half full.
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Written and produced by,
Magdalena Payne


