16
•
Connect the vacuum line (1) to the injector
•
Connect the overpressure line (2).
5.2 Checks before commissioning
Check tightness of the total plant before start-up
5.2.1 Checking the gas solution lines and the non-return
diaphragm of the injector
– Observe the manual of the injector!
5.2.2 Checking the tightness
Fig. 16
No liquid ammonia
5.2.3 Checking the pressure connections (after changing gas
cylinder)
•
Open the cylinder valve and quickly close it again.
•
Slowly pass the open ammonia bottle along gas-leading
parts.
– Slightly press the bottle in a pumping manner, allowing the
ammonia mist to rise up.
– Formation of white mist: Leakage at the pressure
connection!
•
Depressurize the plant!
•
Eliminate leakage!
•
Check tightness again
Formation of white mist --> pressure connection is not tight
Fig. 17
A chlorine gas --> formation of white mist
No formation of white mist --> pressure connection is tight
Fig. 18
No chlorine gas --> no formation of white mist
5.2.4 Checking the inlet valve
•
Remove the union nut at the overpressure connection and
take off the overpressure line.
•
Close the rate valve.
•
Open the cylinder valve.
•
Slowly pass the open ammonia bottle along the overpressure
connection.
– Slightly press the bottle in a pumping manner, allowing the
ammonia mist to rise up.
– Formation of white mist:
The inlet valve is not tight!
•
Depressurize the plant!
•
Check the inlet valve and repair it!
•
Check tightness again
Formation of white mist --> the inlet valve is not tight!
Fig. 19
A chlorine gas --> formation of white mist
No formation of white mist --> the inlet valve is tight!
Fig. 20
No chlorine gas --> no formation of white mist
Item
Description
1
Vacuum line to the injector
2
Overpressure line
Caution
Only tighten the union nuts of the vacuum
connections by hand.
Do not use any tools!
Danger of damages!
Maximum length of the vacuum line, see chapter
2.7 Recommended diameter
Warning
Lead the overpressure line downwards, as
chlorine is heavier than air.
Connect the overpressure line to a suitable
adsorption device.
If using a gas warning device: Mount the sensor
in a distance of about 10 cm from the outlet hole
of the adsorption device.
Note
If using a device with absorption fluid:The
overpressure line must not dip into
theabsorption fluid!
Warning
Check the tightness not until the total plant is
ready for start-up.
Danger of gas leakage!
Warning
Liquid ammonia must not come in contact with
parts of the plant!
Danger of leakages by corrosion!
TM
04
07
09
09
08
TM
04
07
10
09
08
TM
0
4
0
7
11
090
8
TM
0
4
0
712
0
908
T
M
04
07
13
09
08
!
!
✓
VGB-103
VGB-103
✓