25
1 BLOWER CHARACTERISTICS
1.2 Operating principle
RBS-AV series blowers are positive displacement blowers
comprising two conjugate shaped rotors 2 which rotate
inside a figure 8 shaped body 1.
The gas enters the blower at pressure P
1
and temperature
T
1
, it is trapped in the volume V and finally discharged from
the outlet at pressure P
2
and temperature T
2
.
The capacity is proportional to the speed of rotation and is
almost constant when the operating pressure varies.
P1 inlet absolute pressure
T1 inlet temperature
P2 outlet absolute pressure
T2 outlet temperature
1.2 Construction
The body 1 is closed at both ends by covers 5A and 5B in
which the seals 45 and bearings 31, 32 and 33 are located.
The rotors 2 are synchronised by means of a gear with
involute toothed wheels 11A and 11B.
Two sumps 12A and 12B are mounted on the covers which
act as oil tanks for the bath lubrication of the bearings and
of the synchronised gear.
The shafts have labyrinth seals 25.
The blower is gas tight tanck to o-ring 47A and 47B
between the casing and the covers and between the covers
and the sumps
1.3 Nameplate
-Blower type
1) Size from 35-45-65-85-105-125-145
2) Version F
Flanged
V Vertical
H Horizontal
SP Without feet
RV Cooled vertical
3) Execution 0001
-S/N Serial number
-m
3
/h Capacity
-kW Power
-dp mbar Differential pressure
-n RPM Rotation speed
Note: For a detailed description of the blower materials and all its components see also the catalogue or
consult our technical service.
1
2
V
2
Fig.1
CE
Parma
Italy
Type
RBS-AV 65 / F
S/N
0105116
exec. 0001
m3/h
1000
kW
5.5
dp
500
n
1450
mbar
RPM
(3)
(1)
(2)
12B
32
31
1
2
33
11B
47B
47A
47A
47B
43
12A
11A
92
5A
5B
25
Fig. 2
Содержание RBS 105 AV
Страница 43: ...43 9 2 Ingombro 9 2 Overall dimension...