Page 234 - Reciprocating Compressors Operation Maintenance

Operation and Maintenance of Reciprocating Compressors 219

1 Labyrinth piston 4 Distance piece 7 Quid* bearing
2 Cylinder S OHaorapero 8 Crosshead
3 Labyrinth-piston 6 Piston rod 9 Crankshaft
rod gland

B, for 0 2,
N 2, C0 2, process air; generally in the Industrial ps industry).

for weather protection).

crankshaft seal. This design Is used tor compression ot gases that are
compatible with the lubricating oil (for example, for hydrocarbon gases, CO,
He, H,,Ar) and where no process gas may leak to the surroundings. The

D. Labyrinth-piston compressor with gas- and pressure-tight crankcase
and mechanical crankshan seal. Used to compress gases that are
compatible with the lubricating oil and where no process gas may leak to
the surroundings. Suction pressure may range between subatmospheric
and crankcase design pressure. This machine (bids its applications In
closed cycles for hydrocarbon gases, refrigerants, VCM, CO, N 2, C0 2< He,
H 2, Ar, etc.

FIGURE 3-66. Labyrinth-piston compressors are available in four typical
configurations (Source: Sulzer Roteq, Winterthur, Switzerland and New York,
New York).