DESCVALVE **TE
DESC2VALVE
MATBLACK PEEK
MAT23Gr13
madeChina
qty20
Contents hide
1 Loads Act on Piston
1.1 Gas Load:
1.1.1 The Gas Load Under Compression
1.1.2 Gas Load UnderTension
1.2 Inertia Force
1.3 Combined Rod Load
2 Reciprocating Compressor Piston Rod Load Calculation method
3 Conclusion:
Tangent Ring切线环
The tangent ring is cut into three segments so that each cut lies on the side of an
equilateral triangle. The cuts of this ring maintain sealing contact regardless of
variations of the ring’s inside diameter. If wear occurs in the tangent ring, the
garter spring will tighten the ring segments to compensate for the wear.
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.
Backup Ring支承环
The construction of the backup ring is similar to the radial ring. As the name
indicate this type of ring is used to backup all the rings when using in the high-
pressure application.
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.
Piston Rod活塞杆
The piston rod is threaded to the piston and transmits the reciprocating motion from the Crosshead to the piston. MOC of piston rod is alloy steel and must have a hardened and polished surface particularly where it passes through the Cylinder packing (double-acting cylinders).
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