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OLAND TOTAL VENTILATION suction side Pressure side flex. connection reducer reduction piece flange anti vibrations- dampers flange flex. connection Duct Duct O LAND A/S TOTALVENTILATION WWW.OELAND.DK (+45)70 20 19 11 Industrial fans general

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Page 1: TOTAL VENTILATION - Øland Online · 950 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2200 2750 3000 3250 3500 3750 4000 4500 5000 5500 6000 6500 eksempel 2 ... Industrial fans-

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OLAND TOTAL VENTILATION

suction side

Pre

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ide

flex. connection

red

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reduction piece

flange

anti vibrations-dampers

flan

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OLAND A/S TOTALVENTILATION WWW.OELAND.DK(+45)70 20 19 11

0Industrial

fans general

Page 2: TOTAL VENTILATION - Øland Online · 950 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2200 2750 3000 3250 3500 3750 4000 4500 5000 5500 6000 6500 eksempel 2 ... Industrial fans-

0-2 WWW.OELAND.DKOLAND A/S TOTALVENTILATION

Guidance to choosing the direct driven industrial fansThe fans can be divided into 4 groups which are type, pressure area and application.

1. Medium pressure fans : pressure area . 150-6.500 Pa. Diagram1Cleanair:Verylowdustholdingcapacity,egafterfiltration Diagram 2 Dusty air : Up to 0,2g/m³ dust content , eg welding smoke Diagram3Dustyair:Upto2g/m³dustcontent,egcuttingprocesseswithorbeforefiltration

2. High pressure fans : pressure area . 1500- 25.000 Pa. Diagram 4 Dusty air : Up to 0,2g/m³ dust content , eg welding smoke Diagram5Dustyair:Upto2g/m³dustcontent,egcuttingprocesseswithorbeforefiltration Diagram6Dustyair:Upto20g/m³dustcontent,eggranulateinformoffinerparticles.

3. Conveying fans : pressure area . 700- 15.000 Pa. Diagram 7 Material transportation: Up to 200g/m³ dust content, eg chips and granulate.

4. Plastic fans : pressure area . 40- 3.500 Pa. Diagram 8 and 9: Aggressive air: Acid –water damp, eg exhaust from fume cupboards, galvanizing tabs

The following procedure can be followed:

1. Decide mode of transport a. Clean air b. Dusty air c. Material transportation d. Aggressive air

2. For a and b the actual pressure area should be decided. Medium pressure fans up to 6.500 Pa from diagram 1,2 or 3. High pressure of up to 25.5000 Pa from diagram 4, 5 or 6.

For pressure areas of up to 6500 Pa a medium pressure fan should be chosen to begin with for price related reasons.

For c and d diagrams 7,8 or 9 should be applied, where the fan is decided by the help of desired pressure and air capacity.

3. With the desired pressure and air capacity, one should generally look for a fan curve, where opera tion point (desired pressure and air capacity) lies closely to the curves’ point of discontinuity. Here thefanwilloperatemostoptimalwiththehighestefficiency.

The following examples give some enlightenment on this:

If one regulates a fans capacity, this should be recommended with the help of a frequency converter. In which case the motor should be equipped with thermal sensors in motor winding also called PTC. These monitor the temperature of the motor winding. If winding is too high, which can happen if the motor is rotat-ing at a low speed, the motor will stop for safety reasons and can be restarted again after it has cooled down. For small motor effects the industrial fans can be delivered with a one phased motor, which can be regu-lated by a transformer. Ølandrecommendsfirstandfarmostthatyouregulatewithafrequencyconverter.Thiswillgivethebeston operational and economy regulations

Oland Industrial fans- Direct driven Guidance

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OLAND A/S TOTALVENTILATION(+45)70 20 19 11 0-3

Example 1: Exhaust of clean airPoints of operation are: Airflow: 2700m3/h Total pressure: 750 Pa

Total pressure of 750 Pa indicates a medium pressure fan.Cleanairgivesthefirstresultindiagram1Fan nr 2(FR 281-1,1kW) shows as the best one to choose. If the right fan is not found in the diagram 1 searching should continue to diagram 2 and 3.

ContactØlandA/S,ifnoneofthediagramsgivesyou desired results

Diagram 1. Industrial Fans - FRMedium pressure, clean air

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Diagram 2. Industrial fans - FQMedium pressure, clean and dusty air

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Example 2: Exhaust of for example welding smoke

Points of operation are: Airflow: 11.000m3/h Total pressure: 2.500 Pa

Total pressure of 2.500 Pa indicates a medium pressure fan.Cleanairgivesthefirstresultindiagram1Fan nr 6(FR 451-1,1kW) shows as the best one to choose. If the right fan is not found in the diagram 1 searching should continue to diagram 2 and 3.

ContactØlandA/S,ifnoneofthediagramsgivesyoudesired results.

Example 3: Exhaust of for example welding smoke

Desired operation point Airflow: 4000m3/h Total pressure : 2000 Pa

Total pressure of 2000 Pa indicates a medium pressure fan.Air exhaustion from car fumes normally has a lowerdustcontentwhichcontainsfinerparticles.Thelowdustcontentsgivesthefirstsearchindiagram 2. Fan nr 5(FQ 401-4,1kW) shows as the best one to choose with a bit higher capacity.If the right fan is not found in the diagram 1 searching should continue to diagram 2 and 3.

ContactØlandA/S,ifnoneofthediagramsgivesyou desired results.

Øland industrial fans direct driven Examples

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OLAND A/S TOTALVENTILATIONWWW.OELAND.DK 0-4

ExsamplesØland industrial fans- direct driven.

Example 4Process exhaust clean air

Desired operation pointAirflow: 10.000m3/hTotal pressure : 15.000 Pa

Total pressure of 15.5000 Pa indicates a medium pressure fan.Cleanairshouldbethefirstsearchingpointin diagram 4. If the right fan is not found in the diagram 1 searching should continue to diagram 2 and 3.

Fan nr 31(FGP 801-75kW) shows as the best one to choose with a bit higher capacity.

ContactØlandA/S,ifnoneofthediagramsgives you desired results

Diagram 5. Industrial Fans - VCM - ARTHigh pressure, clean and dusty air

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Diagram 4. Industrial fans- FCN - FEN - FGN - FIN -FPNHigh pressure, clean- and dusty air

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Diagram 6. Industrial fans - FAP - FCP - FEP - FGPHigh pressure, clean and dusty air

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Page 5: TOTAL VENTILATION - Øland Online · 950 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2200 2750 3000 3250 3500 3750 4000 4500 5000 5500 6000 6500 eksempel 2 ... Industrial fans-

OLAND A/S TOTALVENTILATION WWW.OELAND.DK0-5

Oland Industrial – direct driven

0........Industrial fans general- examples ..................................................................................................................

1........Medium pressure fans- clean air ..........................................1.000-90.000m3/h-150-3.600Pa ..................

2........Mediumpressurefans-dustyairupto0,2g/m3 ..................700-90.000m3/h-500-6.500Pa .....................

3........Mediumpressurefans-dustyairupto2g/m3 .....................700-55.000m3/h-500-5.000Pa .....................

4........Highpressurefans-dustyairupto0,2g/m3 .......................200-50.000m3/h-2.500-25.000Pa ................

5........Highpressurefans-dustyairupto2g/m3 ..........................700-60.000m3/h-1.500-16.000Pa ................

6........Highpressurefans-dustyairupto20g/m3 ........................2.000-17.000m3/h-2.000-18.000Pa .............

7........Conveyingfans-materialtransportationupto200g/m3......80-14.000m3/h-700-15.000Pa .....................

8........Plastic fans- rust-acid proof with B-Wheel............................50-3.500m3/h-40-3.200Pa ...........................

9........Plastic fans- rust-acid proof with F-Wheel ............................80-20.000m3/h-100-3.500Pa .......................

Diagrams in the following serve for a fast and safer version of the desired fan. Any wishes for more detailed techni-cal data please employ the Øland electronical dimensioning program. “Industrial fans”. A CD with dimensioning program can be requested on +0045 70 20 19 11.

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OLAND A/S TOTALVENTILATION WWW.OELAND.DK0-6

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Diagram 8. Plastic fan with backward curved impeller, VRE-BCorrosion resistant

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Diagram 7. Industrial Fans - KP - KAP - KBP - KMR - KCRConveying fans, conveying of material

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Example 5Material transportation

Desired operation point. Airflow: 2.000m3/hTotal pressure : 4.500 Pa

The searching should go directly in diagram 7.Fan no. 19 (KBP-501-7,5kW) proves to be the best choice. ContactØlandA/S,ifnoneofthediagrams gives you desired results.

Example 6Exhaust from galvanizing bath

Desired operation pointAirflow: 5.000m3/hTotal pressure : 600 Pa

The searching should go directly in diagrams 8 and 9Fan no. 16 (VRE 315-501-7,5kW) proves to be the best choice. ContactØlandA/S,ifnoneofthediagrams gives you desired results.

Øland industrial fans- direct driven.

Examples