Technical Knowledge Center

 

CLASSIC
STEAM BOILER

Introduction to Fire-Tube Steam Boilers
 in 3 Passes and with Large Steam Volume
 




 

 


QUICK ENTRANCE :
Boilermaker AB&CO (Copenhagen, Denmark)
Models Full 3-Pass or Reverse Flame Design
Steam Capacities 80 - 5,000 kg/hour
Working Pressures 0 - 30 bar gauge
Energy Source
(Fuel)		 Natural gas, LPG, bio-gas, light and heavy fuel oil, - and combinations hereof.
Utilisation of Energy

(depends on working loads and steam pressures. Designs for ultra high efficiencies on request)		 Efficiencies (based on LCV) :

90 - 92% (basis boiler design)
95 - 97% (when using an economiser i.e. extra flue gas cooling e.g. for water heating)
The Product General Description
General Sketch Main Dimensions
Estimated Dimensions 'Large' Steam Boilers
Estimated Dimensions 'Small' Steam Boilers
Heat Recovery Economisers (flue gas heat recovery)
The STANDARD
Steam Boilers		 Steam Boiler Range with Specific Data

 All THE STANDARD boilers - range & data
Introduction to
Other Steam Boilers		 Compact Steam Generators (Water-Tube)

Electric Types (electrical heated boilers)

All THE STANDARD boilers - range & data
Heating Methods Steam Generators VS Boilers

 Thermal Fluid VS Steam
Chimney Design & Lay-out
Flue Gas Data Data & Calculations
Assistance Design & Trouble Shooting

 Service & Supervising
Steam table

 

THE STANDARD
CLASSIC STEAM BOILERS

 More specific data on
standard fire-tube
steam boilers.  
 

OTHERS models / types
of Steam Boilers.

 
   Steam Boiler Operation
AB&CO animations for PC and Smartphone

Sprache / Sprog / Språk  :              

 

 

 


Small & Medium-size Customised Boilers
 

Download Leaflet & Data Sheet:

 

 

 

 

SHORT INTRO

The quality is supreme and the price is thus somewhat higher than the cheapest alternatives on the market.

The special technical features means that the long term costs are still much lower.

The fire-tube steam boilers are developed in a rigid design especially for demanding operations.

They are tailor-made and dedicated to applications where no compromise on quality and reliability are accepted - and where low over-all costs and pay-back time, and not cheap purchase price, are the key words.
 

LOWEST COSTS - IN THE LONG RUN


The key argument for buying and investing in an AB&CO solution. Low total life-cycle cost (LCC) is guaranteed, since LCC include not only purchase, but also operation and maintenance cost, and a life-time of many years with up-time running.

On top of this comes the environmental features that meet the future demands: Sustainable Process Heating

 

 

 

 

 

  
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DETAILED DESCRIPTION & SPECIFICATIONS
 

LARGE SIZES - FULL 3-PASS

 A  large program of classic steam boilers with oil, gas and dual fuel burners with optimum combustion economy in a 3-pass design.

 

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   Stabile and dry steam production with capacities up to 5,000 kg steam hour at working pressures from 1 - 20 bar (0.1 - 2 MPa).
High efficiencies of 90 - 91% that ensures supreme economy in operation, by a very high internal heat transfer surface (heat exchanger size). 
NOx emission is minimized through the special geometry and very large volume of the combustion chamber, - and optimum utilization of 'Low NOx' burners.
Calm and stabile steam production, due to well calculated oversized steam compartment, which also ensures a large steam buffer reserve during fluctuating consumptions.
Simple to operate and to maintain. The tubes bundles are easy accessible through a large man hole, which also means general good access for inspection and cleaning of the inner parts of the boiler.
   Manufacturing and finish of highest quality - made by skilled and experienced boiler specialist.
   Customised with a lot of choices, which are based on the actual circumstances and local requirements.

 

  
More info about
  the 'R&D Workshop'

 

 

SMALLER SIZES - REVERSE FLAME DESIGN

The smaller types are also classic steam boilers with oil, gas and dual fuel burners with optimum combustion economy in a 3-pass design.

Capacities from 125 - 400 kg/h at working pressures from 1 - 20 bar (0.1 - 2 MPa).

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The smaller type DJM offers the same features and advantages as the DJ, including a full 3-pass design. The DJM is an alternative to the steam generator boiler, dedicated those who prefer the classic steam boiler with the good steam buffer facility for varying operations.


 

Alternative Solutions / Other Considerations

 

AB&CO Total Heating Systems

Process Heating Systems with boilers, heaters, heat exchangers, pumps, tanks, pumps, system components and piping.
 

 

TABLE VALUES · Presumptions: 
The below stated values for heat capacity and fuel consumptions are based on 60°C feed water temperature, 5 bar steam pressure, 90% efficiency and normal European quality light fuel oil (Hi=42.300 kJ/kg) and natural gas (Hi=39.600 kJ/Nm³).

All below figures and data are estimations for guidance only. The exact capacity appears from the quotation. Exact sizes to be determined as part of order effectuation and adjustment of the customised design.

 

Steam Cap.
[kg/h]

Heat Cap.
[kW]

 Oil · Gas
Consumption
[kg/h · Nm³/h]

A
[mm]

B
[mm]

C
[mm]

D
[mm]

E
[mm]

F
[mm]

Weight
Service
[kg]
125 87 8,2 · 8,8 1555 1535 1020 845 1055 88,9 630
180 125 11,8 · 12,6 1775 1540 1180 1005 1220 ø114,3 960
400 278 26,3 · 28,1 2415 2055 1340 1165 1380 ø139,7 1,700

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Steam Cap.
[kg/h]

Heat Cap.
[kW]

 Oil · Gas
Consumption
[kg/h · Nm³/h]

A
[mm]

B
[mm]

C
[mm]

D
[mm]

E
[mm]

F
[mm]
Flue Gas

Weight
Service
[kg]

600 417 39,4 · 42,1 3360 2280 1360 1160 1665 ø200 2,200
800 556 52,6 · 56,2 3390 2320 1520 1320 1840 ø250 2,900
1000 695 65,7 · 70,2 3490 2350 1620 1420 1985 ø260 3,100
1250 966 82,2 · 87,8 3455 2350 1800 1600 2140 ø275 5,000
1600 1,112 105,2 · 112,4 3970 2870 1800 1600 2015 ø290 6,000
2000 1,390 131,5 · 140,5 4250 2900 1950 1750 2300 ø375 6,700
2500 1,738 164,4 · 175,6 4700 3450 2100 1900 2415 ø400 8,800
3000 2,086 197,2 · 210,7 5495 4400 2130 1930 2480 ø450 12,700
3500 2,433 230,2 · 245,8 5835 4450 2325 2125 2740 ø515 15,500
4000 2,781 263,0 · 280,9 6445 4950 2325 2125 2740 ø515 16,600