Page 238 - Reciprocating Compressors Operation Maintenance

Operation and Maintenance of Reciprocating Compressors 2L23

Finally, the consumption of major spare parts (excluding valve compo-
nents, for which no records had been kept) by 14 labyrinth-piston compres-
sors in ethylene service in Europe was examined (Table 3-15). From 1977
through 1980, these machines had been in operation for a combined total of

TABLE 3-14
NUMBER OF DOWNTIME EVENTS PER
LABYRINTH-PISTON COMPRESSOR

Downtime events
Number of Year of per machine
Plant machines installation per year

A 6 1982 1.00
B 2 1984 6.00
C 3 1982 2.00
D 5 1961-74 0.67
E 3 1976 0.35
F 12 1966-77 0.43

TABLE 3-15
CONSUMPTION OF SPARE PARTS BY
LABYRINTH-PISTON COMPRESSORS

^ 9 Bfi
,p 9 .S
"a
*5i 5 gj 5r S Hjj •o
"*i S 5 •p *pj § O
Total w A *Q § « a *a fl 43
Number operating ^ 1 1 g § 1 I 1 1 i
Location of units hours & O § £ u O £ £ £ u
I 3 98,500 1 4 2 3 i 4
II 3 83,530 2 1
III 2 43,000
IV 2 33,000 1
V 4 55,500 3 2 6 2 4 3
Total 14 313,530 6 1 0 6 0 8 6 0 5 7