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Alfa Laval Aalborg OL (formerly MISSION™ OL)

PATENT PENDING

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General

 

  • Two-drum cylindrical water tube boiler
  • Standard preassembled modules
  • Innovative PLC-based control system
  • Top-fired compact design
  • Membrane wall design
  • Made of mild carbon steel with elevated temperature properties
  • Based on well-proven design of hundreds of Aalborg Industries' own AQ-9 and AQ-18 boiler designs
  • Integrated steam atomizing burner
  • Refractory is reduced to a protective layer at the bottom of the furnace

 

Design data

 

Thermal output: 8 - 42 MW
Steam capacity: 12.5 - 55 t/h
Design pressure: up to 18 bar(g)

 

Description

 

The boiler is available as a steam or hot-water boiler in capacities up to 55 t/h or 42 MW.


The convection section consists of straight tubes  extended with pins which are bent to create a flue gas
flow increasing the heat transfer at the same time as it reduces the pressure loss across the convection section.


The boiler is top-fired, which gives optimum conditions for the flame resulting in a very good combustion. The boiler is compact and requires a minimum of space.

It is ideal for engine room installation.

 

Construction

 

The Aalborg OL is a large capacity oil-fired steam or hot-water boiler in the 12.5 to 55 t/h capacity range. The two-drum cylindrical boiler design features straight tubes directly connecting the water and steam drums. This ensures safe circulation with no risk of overheating and subsequent burnout of the tubes.

 

Thanks to gastight, polygonal membrane wall panels the sturdily constructed furnace is resistant to gas
pulsations. The integrated burner design reduces refractory to a protective layer at the bottom of the furnace and around the access doors.

 

 

 

 

Capacity, Fuel economy, Dimensions & Weight



 

Steam capacity

Design pressure

Thermal output at 100% MCR

Height "K" (incl. retraction of burner lance)

Diameter "D" (incl. insulation)

Height "H"

Width "B"

Boiler dry weight

Boiler operation weight

kg/h

bar (g)

kW

mm

mm

mm

mm

ton

ton

12,500

9

8,800

8,610

2,670

6,310

4,070

16.4

23.3

16,000

9

11,300

8,810

3,070

6,310

4,320

20.5

29.6

20,000

9 / 18

14,100

8,940

3,220

6,460

4,595

24.5/28.5

35.5/39.2

25,000

18

17,600

10,050

3,320

7,310

4,800

30.3

41.5

30,000

18

21,200

10,360

3,570

7,510

5,200

35.1

48.2

35,000

18

24,700

10,300

3,870

7,360

5,600

40.4

55.8

40,000

18

28,200

10,880

3,870

7,760

5,625

42.6

58.4

45,000

18

31,800

10,870

4,270

7,710

6,125

49.3

68.6

55,000

18

38,800

11,050

4,520

7,760

6,600

56.6

78.5

 

DATA SHEET series
© Aalborg Industries 1998, rev.: 4.0, July 2008 (Design data are subject to change without prior notice).

 

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