Natural gas compressor Poppet Valve
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关键词
Natural,gas,compressor
详细说明
DESCVALVE PLATE
DESC2VALVE
MATBLACK PEEK
MAT23Gr13
madeChina
qty20
Filed Under: Basics, Reciprocating CompressorTagged With: Piston Rod Load calculation, Reciprocating Compressor Piston Rod Load, Reciprocating Compressor Piston Rod Load principle
Cross Head十字头
All industrial compressors are equipped with crosshead. The crosshead is used to
guide the piston in the cylinder bore. The following are the advantage of the crosshead.

The Figure shows a drilled crankshaft.
Crankshafts should have removable balance weights to compensate the rotary unbalance
as well as reciprocating unbalances. The crankshaft should be dynamically balanced
when above 800 rpm.

Bearing
The main and connecting rod bearings should be split-sleeve, steel-backed, babbitted
insert type. Antifriction bearing shall be used for compressor rating less than
150kW. As per API-618 trapper roller bearings are used as the main bearing for
compressor rating less than 150kW.

Crank Shaft曲轴
Larger compressors, normally above 150 kW(200 hp), the crankshaft is made up of
forged steel. Compressor less than or equal to 150kW, the crankshaft is made up of
ductile iron.
Distance piece may be furnished as single, double, or extra-long type.
The purpose of longer distance piece is to prevent the lubricant entering from crankcase to cylinder. Thereby preventing the gas contamination due to lubrication entering in the cylinder side.
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