fan upgrade service - skf · 2020. 5. 4. · variants: c3, k7, special drillings drain holes: saf...

2008-06-17 ©SKF Slide 2 [Code] SKF [Organisation]

Fan upgrade serviceUSA: lubrication systems

SKF Industrial Fans


Definition of automated lubrication technology

• Automated lubrication technology deals with the design and manufacture of equipment and systems to:

- transport, - measure and meter out,

• Lubricants to bearings and lube points to:

- lubricate,- seal,- dissipate heat,- transport particles of wear from bearings, housings


Centralized grease lubrication system

• Improve reliability

• Correct lubrication at correct intervals

• Reduce contamination

• Reduce costs

• Reduce downtime

• Reduce lubrication costs

• Improve safety

• Reduce exposure to dangerous locations

• Environmental

• Reduce lubricant waste

• Reduce lubrication spillage

Continuous or intermittent lubrication


Systems - Centralized Lubrication Systems

Progressive systems

How system works:

• The system consists of a pump, a progressive feeder and a control unit.

• The amount of lubricant delivered by the pump isdivided up by the progressive feeder and fed to thelube points.

• The lubricant is metered out via pistons.

• Each piston can discharge its lubricant only after the preceding one has discharged its.

--> simple monitoring of lubricant delivery


Progressive type system

Electrically operated pump with a self contained reservoir and controller


Automated Lubrication Systems

Progressive systems

Applications

• For small and medium-sized machines with the many lube points requiring heavy grease (up to NLGI 2).

• Suitable also for small circulating-oil systems

Difficult: planning, changing metering rates, changing the number of lube points.

SKF circulating oil lubrication



2006-03-24 © SKF

Reduce total cost of ownership by increasing reliability and lowering maintenance costs, by a unique combination of bearing units and dedicated lubrication systems.

The SKF solution consists of •self-aligning bearing system•standard SAF, SNL or SONL housings and seals. •lubrication systems

Value proposition and solution


Technical impact

Current Situation Value for Customer

Bearing temp.(°C)105 °C 75°C

Fan speed (rpm)

Perform

ance

Lubricating and Oil cooling / filtering system



Re-circulating lube oil systems

How they work

• Conditioned (de-aerated, dried, filtered, cooled) oil is circulated through the lubrication points.

• The purpose of the system is to lubricate and very often to to cool the lube point.



Pumping skid:

Flowmeter panel

System piping

heater filterpumps

return linereturn line

pressure linepressure line

Reservoir


Standardized offers: new SKF solutions

Standard

Control option

Safety critical option

• Filtered oil

• Temperature control


USA range offers: 4 standards with option


Fan bearing lubrication unit

Control unit

Pump

Pressure gauge

Flow meter

Filters

Oil level sight glass

Oil reservoir

Pre-heater


Technical specifications

All units include:

• Motor, 230/460V, 60Hz

• Single circuit gear rotor pump unit with adjustable

pressure regulating valve

• Sight glass for oil level

• Level switch

• Return port

• Pressure gauge

• 10 micron filter with electrical contamination indicator

• Two point flow meter

• Heater with integrated thermostat- 2kW, 460 V, 60 Hz


Lubrication units for SAF ….VZ pillow blocks


Oil circulation for CARB in (F)SAF …/VZ709

Size range: SAF 507 thru 544Example designations:SAF 530/VZ709SAF 22530/VZ709Variants: C3, K7, special drillingsDrain holes:SAF 507-515 3/8” NPTSAF 516-526 ¾” NPTSAF 528-544 1” NPT

1 to 2 drain holes


Oil circulation for SRB in (F)SAF…/VZ 708

Size range: SAF 507 thru 544Example designations:SAF 530/VZ708SAF 22530/VZ708Variants: C3, K7, special drillingsDrain holes:SAF 507-515 3/8” NPTSAF 516-526 ¾” NPTSAF 528-544 1” NPT

1 to 4 drain holes


SF05/10/15 Oil Flowmeter


Safeflow features and benefits

Operating Principle

Simple, one-time calibration

� Easy to recalibrate

� Easy to monitor (one glance)

� Floats are always visible

� Doesn't necessarily require electrical alarm

Standard Pyrex Glass Tube

Floats always visible

� Hi temperature resistance

� Synthetic oil use possible

� No clouding due to steam

� No wear

� Self cleaning



Thermometer

� Accurate calibration

� Visual oil temperature monitoring by section

� Allows system troubleshooting

Low Flow Alarm

� Optional (future) installation

� One-line monitoring

� No manual inspection required

� Eliminates human errors (disconnects quickly)

� Alarm system can be used only for most critical points

Interchangeable Flow Tubes

� Allows future changes (higher flow rate)

� Allows future use of heavier oil

� One bank can hold two different sizes



Adjustment Valve

� Limited clogging

� Individual flow tube shut-off

� Avoids unauthorized tinkering (locking nut)

Viton O-rings

� Use of any oil

� Hi temperature compatibility

� Easy maintenance

� No leakage

Single Oil Inlet

� Easier installation

� Less fittings

� Rigid construction

� Easily maintained


SF05/10/15 and SF 20A combination


Alarm sensors


Oil flow calcualtion program

• An oil flow calculation program will be available.

• In the meantime will Galaxy BeaTemp be the

calculation tool to determine the required oil flow.


Lubrication: Grease vs Oil

Pros and cons with grease: Pros and cons with oil:

+ Easy to retain in the housing + Wide operating temperature range

+ Good sealing function in labyrinths + Can be cooled

+ Less costly lubrication system + Can be cleaned

+ Long service life

+ More reliable lubrication

- Cannot be cooled - More costly lubrication system

- Cannot be cleaned - More complicated seals

- Limited temperature range

- Less reliable lubrication

- Leakage of used grease

Solution summary


SKF solution summary


• SAF Housing,grease lubrication and low friction seals

• Automatic grease lubrication sytems

• Self-aligning solution

• Circulating oil lubrication

• Engineering service,

• e.g. Cooling disc, Galaxy, BeaTemp

• Lubricant selection,

• SYSTEM 24 and SYSTEM MultiPoint

• The appropriate grease, amount and method

LubeSelect


Sales promotion material


Brochure publication number 6597

fan upgrade service - skf · 2020. 5. 4. · variants: c3, k7, special drillings drain holes: saf...

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