Wilo Wilo-Drain SP, Инструкция по установке и эксплуатации

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ENGLISH
17
150 1450 33 71 117 176
160 1450 15 26 41 63 93
170 950 28 51 85 129 181
Priming time depends on lifting height, length of the suction line, inner
diameter of suction pipe and specific gravity of the fluid.
It will be necessary to apply correction factors to know priming time :
Tt = table with Ha = Hg x d
Ta = Tt x L/Hg x (DT/DN)²
With :
Tt : theoretical priming time
Ha : suction height with specific gravity correction factor
d : Specific gravity of fluid
L : total length of suction line
DT : inner diameter of suction pipe
DN : pump suction flange nominal diameter
9 MAINTENANCE
9.1 GENERAL INFORMATION
Only properly trained and skilled staff should undertake
maintenance operations.
Only authorized personnel should undertake maintenance on
ATEX certified equipments. Make sure to avoid creation of
explosion hazard while proceeding to maintenance in a ATEX zone.
All technical documents delivered with the pump should be known
and should be available near the pump.
The maintenance crew should be informed about the risks linked to the
use of the pump and to the pumped fluids before they can start working
on the equipment (dangerous products, fluid and pump temperature,
pressurized parts, …). They should be equipped with all appropriated
individual safety protections (glasses, gloves, …) and should respect local
industrial and security rules.
Pump contains a part of pumped fluid even when it is at a
standstill. Drain and flush pump casing with care before starting
pump disassembly.
Appropriate lifting devices should be available to help personnel moving
heavy loads.
The maintenance area must be clearly identified. Install warning boards
with the words « WARNING : machine under repair ! » on the pump and
on the control cabinet.
Any work on the machine must be performed when pump is
stopped. Prior to any maintenance or repair work the motor
should be electrically isolated and secured against uncontrolled start.
Lock the main switch open and disconnect circuit breaker. Withdraw the
fuses if any.
WARNING : electrical equipments that must be powered on during the
maintenance work or pressurized equipments must be clearly identified.
End of maintenance operations : all protective parts that were removed
before maintenance should be reinstalled and all security devices should
be reactivated. Pump surrounding area should be cleaned.
9.2 MAINTENANCE AND PERIODIC
INSPECTIONS SCHEDULE
It is recommended to build up a maintenance and inspection plan
to ensure a reliable use of pump and to reduce malfunctions
hazards. Following check points should be included in this maintenance
plan :

Check state and working of securities and auxiliary systems,

Check and adjust gland packing (if any) for visible leakage,

Check for any leaks from pump gaskets and flanges seals,

Check lubricant level and aspect of oil (oil lubricated bearings) in
bearing bracket,

Check running time and replacement frequency of lubricants / ball
bearings,

Check the bearing bracket housing surface temperature on ball
bearings area,

Check dirt and dust is removed from pump and motor ,

Check coupling alignment (depending on pump variant),

Check if there is unusual noises (cavitations, hissing, purring, …) or
excessive vibrations.
Check point Periodicity
State of the auxiliary systems Depends on equipment type.
See dedicated equipment IOM
Motor See manufacturer IOM
Shaft sealing Weekly
Leaks from gaskets Weekly
Oil level and grease quantities Daily / Weekly / Monthly
Lubricants (ball bearings) Replacement frequency
according ball bearing type and
shaft speed
Bearings surface temperature Monthly
Cleaning Twice a year
Alignment and coupling wear Twice a year
Noise, vibrations Monthly
Anchoring quality Yearly
Those frequencies are given for information only. They could be used as
a basis to the creation of a maintenance plan when starting a new
installation. Depending on installation conditions and use, the
periodicity will be shortened or prolonged.
9.2.1 LUBRICATION

Close-coupled pumps are equipped with a long shaft motor. Ball
bearings are designed for a lifetime L10h of 20000 hours.

The pumps equipped with an IEC adaptation lantern (biblock) receive
standard IEC air cooled motors. Ball bearings are designed for a lifetime
L10h of 40000 to 50000 hours depending on motor speed. Pump bearing
bracket is equipped with lifetime lubricated ball bearings (L10h = 20000
hours).

The bearing brackets of the pump sets assembled on a base frame are
equipped with lifetime lubricated ball bearings (L10h = 20000 hours).
Feet mounted motors (IEC frame type B3) are fitted with lifetime
lubricated ball bearings or grease lubricated ball bearings.
9.2.1.1 MECHANICAL SEAL
S pump are supplied with a quench (grease) except when EPDM shaft
seal is used or for thermal engine driven pumps. The self automatic
greasing cartridge is delivered with the pump (not mounted). It is filled
with mineral based grease with paraffin.
Action time will be initially set to 12 months (see chapter start-up).