Aircel ABP Series, Руководство по установке и эксплуатации

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ABP Series | Blower Purge Desiccant Air Dryer
38
MAINTENANCE LOG, WEEKLY INSPECTIONS
Desiccant Replacement
(For Models 2,500 scfm and Smaller)
Prior to performing service or maintenance work on the
system, disconnect power supply, properly lock out (tag out)
electrical power sources and depressurize the system to avoid
personal injury and/or property damage.
1. Remove the covers or plugs from the desiccant drain
ports. Reinstall the covers or plugs when vessels are
empty.
2. To load the new desiccant, remove the covers or plugs on
the fill ports located on the top head.
3. Install the amount and type of desiccant listed on the
supplied drawing in each vessel.
4. Reinstall the covers or plugs on the desiccant fill ports.
5. Leak test all plugs and flanges removed in the change
process. Repair and retest leak sites if necessary.
Desiccant Replacement
(For Models 3,000 scfm and Smaller)
Prior to performing service or maintenance work on the
system, disconnect power supply, properly lock out (tag out)
electrical power sources and depressurize the system to avoid
personal injury and/ or property damage.
All personnel must stand clear of the lifting device when it is
in use, and no personnel may be allowed to stand under or
pass under the drums or sacks of desiccant when they are
raised by the lifting device. Failure to comply may result in
personal injury and/ or property damage.
First Desiccant Tower
1. Turn electrical power OFF and lock-out controller.
Depressurize the compressed air dryer.
2. Equipment required:
• Shop Vac, 6 hp or larger recommended
• Two (2) hoses, 12 to 15 foot long, 2-in. diameter or larger
recommended
3. Install one of the hoses on the suction side of the
Shop Vac. This is the primary suction hose. The Shop
Vac discharge will contain desiccant dust. If the dust is
objectionable, install an additional hose to the outlet of
the Shop Vac and run the discharge hose outdoors.
4. Install a reducing flange on the Regeneration Air Outlet
line to connect to the primary suction hose from the Shop
Vac.
5. Connect the Shop Vac primary suction hose to the
Regeneration Air Outlet line.
6. Remove the flange on the desiccant filling port on the
upper head of the desiccant tower being filled. Install a
reducing flange to connect to the secondary suction hose.
7. Immerse the secondary suction hose connected to the
filling port into the desiccant drum or sack.
8. Place the drum or sack of desiccant on a Fork Lift.
Carefully raise the desiccant to the level of the filling port.
9. Remove the Position Indicator on the Regeneration Air
Outlet valve mounted on the desiccant tower to be filled.
Turn the valve stem with a wrench by hand to open the
Regeneration Air Outlet valve.
10. Inspect the installation to ensure the safety of the
personnel.
11. Turn on the Shop Vac. Allow time to create a vacuum in
the tower, and desiccant will be drawn into the vessel
from the drum or sacks on the Fork Lift. The hose must
remain submerged in the desiccant to provide continuous
filling of the vessel.
12. Fill vessel to the start of the knuckle in the upper head
of the vessel. The Shop Vac must be turned off and the
flange on the filling port must be removed occasionally to
determine the level of the desiccant in the vessel. A small
rake with a long handle can be used to level the desiccant
at these times.
13. After filling the first vessel, remove the reducing flange
from the filling port and reinstall the original flange with
the relief valve.
14. Turn the valve stem with a wrench by hand to close the
Regeneration Air Outlet valve on the first vessel. Reinstall
the Valve Position indicator.
Second Desiccant Tower
1. Remove the desiccant filling flange from the second
vessel and install the reducing flange and secondary
suction hose on this vessel.
2. Remove the Position Indicator on the Regeneration Air
Outlet valve mounted on the second desiccant tower to
be filled. Turn the valve stem with a wrench by hand to
open the Regeneration Air Outlet valve.