Vahterus Plate - Steam Generator (Kettle); Exhaust Gas Economiser (EGE); General Start-Up

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4.1.6 Steam Generator (Kettle)
Plate pack positioned in large shell. Steam generator application.
4.1.7 Exhaust Gas Economiser (EGE)
For cooling or heating gases.
COLD IN
COLD OUT
HOT IN HOT OUT
4.2 General start-up
Thefollowinginstructionsaregeneral,andprocess-specic demandsmustbetaken
into account by the user.
Check the following before start-up:
¬ Pipe connections comply with the drawings and are securely supported/fastened.
¬ Drain valves are closed.
¬ The heat exchanger and pipelines are properly vented.
¬ Any safety appliances are correctly connected.
¬ There are no risk factors in the pipes that could cause shock pressure (water ham-
mer) or sudden changes in pressure.
First,starttheowonthecoldside,andthenstartandgraduallyincreasetheowon
the hot side. If there is a risk of freezing, or the liquid being used has high viscosity, the
start-up sequence must be checked and determined by the user according to process
requirements.
The general heating rate is max. 5°C/minute.
The pressure may be increased gradually. See also section 3.2.
Check the system for pressure pulses caused by pumps or control valves. Continuous
pulsing and vibration may cause fatigue in the plates.