ITT Bornemann SLH-4G, Руководство по эксплуатации

Страница: 50 / 78

1. n Securely close all interfaces to the pumping process:
–
"Double block and bleed" principle
– Blank flange
– Spectacle blinds (secure against unintended opening)
– Shut valves
– Effectively disconnect the drive power for valve drives
– Attach warning signs to manual valves that cannot be shut ("Do
not open!")
– Monitor leak-tightness with gas detectors
2. Guide all bleeds ("Double block and bleed" principle) to the safe area.
3. Switch off power to the drive system and secure to prevent it being
switched on again.
n Preparation for inertisation (
Ä
‘Preparation for inertisation’ on page 50 ) com-
pleted.
n Pump switched off and disconnected from the electrical system.
n Inlet and outlet side valves (supplied by customer) closed.
1. Select suitable pipeline as the bleed line (at the highest point of the
system) and route to the safe area.
2. Connect the gas measuring device to the end of the previously selected
bleed line.
3. Activate gas measurement.
4. Open the valve on the selected bleed line (bleed valve).
5. Connect inert gas to suitable fill valve (at the lowest point of the system).
6. Fully inertise pump and pipelines with max. 5 bar fill pressure from bottom
to top until only pure inert gas flows through the bleed line.
ð
The pump and pipelines are now inertised. Before commissioning,
properly fill the pump (
Ä
Chapter 6.1.7 ‘Filling and bleeding’
on page 50 ).
6.1.7 Filling and bleeding
WARNING!
Risk of injury and poisoning due to hazardous pumped media!
– Safely contain escaped pumped media and dispose of in an
environmentally friendly manner.
NOTICE!
Property damage due to dry running!
Ensure that the pump is correctly filled.
In case of flammable or explosive pumped media ATEX addi-
tional instructions.
Preparation for inertisation
Prerequisites for inertisation
Process for inertisation
Operation
Type SLH-4G, SLHS-4G 50
01/2016 JPB Rev. 5