Atlas Copco ER S-1, Инструкция, Страница: 16 / 40

20/06/2011 PM 9845 0512 02 Page 14 of 36
37
+
-315 kW range (typical installation)
Figure 5: Modifications to vessel & oil filter pipe to install the ER unit on 37
+
-315 kW (& VSD)
Before modifications After modifications
11.
Oil drain
12.
Oil separator vessel
13.
Oil filter pipe with 2
nd
bypass valve
and oil filter housing
14.
2
nd
bypass valve (BV2) of filter pipe
15.
Oil flexible (from tap flange to oil
inlet connection of ER unit)
16.
Oil flexible (from oil outlet
connection of ER unit to oil filter
pipe)
17.
Tap flange
18.
Spacer (up to GA 90 kW)
To enable the energy recovery unit to be inserted into the compressor oil circuit, a special tap flange (Figure 5-17) and 2
spacers (Figure 5-18) must be installed between the oil separator vessel (Figure 5-12) and the oil filter pipe (Figure 5-13).
This flange allows the oil to be drained out of the oil separator vessel (Figure 5-12) and directly into the oil inlet connection
(Figure 7-5) of the ER unit using a flexible (Figure 5-15).
Connect the other flexible (Figure 5-16) coming from the oil outlet connection (Figure 5-6) of the energy recovery unit to a
connection at the bottom of the oil filter pipe (Figure 5-13). In standard compressors without energy recovery, this connection
serves as an oil drain.
In compressors with an ER unit built in, the special tap flange (Figure 5-17) takes over this oil drain (Figure 5-11) function.
11
13
12
12
13
16
11
17
15
14
18
18