Speck pumpen VZ 11 B Series, Руководство по эксплуатации

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OPERATING INSTRUCTIONS
18
3.2
Storage
It is advisable to store the unit in dry conditions.
The pump has to be protected against penetra-
tion of dirty parts.
4
Description
4.1
Construction
Speck liquid-ring vakuum pumps of the types
VZ ..G are dual-stage pumps on base plate
construction. The shafts are mounted on ball
bearings at both ends. The shafts are sealed
with two mechanical seals (Version 470).
Speck liquid-ring vakuum pumps of the types
VZ ..B are dual-stage pumps in block construc-
tion The shafts are mounted on ball bearings
at both ends. The shafts are sealed with two
mechanical seals (Version 470).
4.2
Function
The liquid ring rotates inside the working area
eccentrically to the shaft. The impeller trans-
mits the drive performance by the circulating
liquid ring as compression power to the gas to
be delivered. This produces low pulsation
compression.
The service liquid - normally water - must be
added and cooled continuously. This dissi-
pates the resulting compression heat and adds
liquid to the ring, since part of the liquid is
continuously dissipated along with the gas on
the pressure side. The liquid can be separated
from the gas in a discharge separator at-
tached.
Illustr. 1: function
5
Set up and Installation
CAUTION
The non-observation of all safety informa-
tions given under “5 Setting
up/Installation” shall invalidate any claims
of warranty including claims for compensa-
tion of damages.
5.1
Place of Installation
Always choose a place of installation, where
pump and motor are easily accessible.
5.2
Installation
The complete pump unit has to be put on a flat
and plain base plate. The base plate/foot has
to be screwed without warping to the ground
or the equipment frame.
If the floor is uneven, chock up the base
plate/foot with appropriate flat objects, cement
or similar. Any warping of the base plate badly
affects the alignment of the coupling. It is
advisable to check the alignment of the cou-
pling with a ruler or a gauge (before and) after
tightening the base plate.
CAUTION
In case the coupling is not aligned, the
smooth running of the pump will be dis-
turbed and the bearings will be worn out
and consequently the pump may get defec-
tive early!
Illustr.
2:
alignment of coupling
A guard corresponding DIN 31001 must pre-
vent the coupling from being touched. The
pump body can also be warped by incorrect
fastening.
If low vibration running is a high priority, the
unit must be fixed to a vibration insulated
foundation (with no fixed connection between
the base plate and the foundation or the
equipment frame).
You must lay the piping to the plant such that
on the inlet side there is an incline to the