Fulton Ancillary Equipment SteamPac Unfired Steam Generators - Manual (Page 46)

Fulton Thermal Corp.*SteamPac Unfired Steam Generators Manual* Version 2010-0201
Page 46
d) It is critical that the SteamPac pH be alkaline (9-11) whenever water is in the vessel.
Solids that enter in with the water concentrate in the SteamPac. Daily blowdown is
recommended to help prevent the formation of deposits.
2. Maintenance Schedule
Daily
a) The following procedures should be carried out daily. They are designed to prevent the
build up of scale, silt or sludge in the SteamPac. In addition to these procedures, the
advice of a water treatment specialist should be sought and followed. An ASME Section
VIII blow off receptacle must be provided for the appropriate pressure.
b) Blow down the SteamPac each morning from the bottom blow down connection
by starting the SteamPac and generating not more that 10 psi of steam.
c) Blowdown the water column each morning for 5 seconds at 10 psi or less
d) Drain gauge glass each morning for 1 second at 5 psi or less.
e) Ensure that chemical treatment/water softener is operating properly.
f) Ensure that the feedwater pump is operating properly.
g) Observe at least 1 cycle of operation to ensure proper operation.
Monthly
a) Clean the water column gauge glass.
b) Clean the water pump strainers.
c) Check motor starter contacts for pitting or burns.
d) Check operation of all steam traps on condensate return system.
e) Check tightness of all joints or flanges on the water, steam and thermal fluid piping.
Tighten or replace any leaking valve packing.
f) Check operation of pressure switches/controllers. When the unit is in operation, reduce
the setting of the pressure switches to a value well below that of which they
normally operate. The steam pressure control should shut the fluid control valve.
Semi-Annually
a) Clean water level and pump probes with light sandpaper or emory cloth. For float
type water level controllers check float & float housing for unrestricted movement.
b) Drain and flush condensate return tank.
Annually
a) Remove hand hole covers and inspect the inside of the pressure vessel. Check
for scale, sludge or pitting. Check tube bundle for fouling. Any of these conditions indicate
improper water management.