Sprache / Sprog / Språk :

CLASSIC STEAM BOILER

Introduction to Fire-Tube Steam Boilers

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' Boilers
Estimated Dimensions	'Small' Boilers
Heat Recovery	Economisers (flue gas heat recovery)
Steam Boiler Survey	All THE STANDARD b oilers - range & data Compact Water-tube Types Electric (electrical heated boilers)
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


inquiry data sheet	company introduction

technical
assistance & tools

customers
and projects worldwide

Small & Medium-size Customised Boilers

Steam Boiler Operation
AB&CO animations for PC and Smartphone

LOWEST COSTS IN THE LONG RUN !
- is 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. On top of this comes the environmental features that meet the future demands.

AB&CO are a well-known Danish steam boiler manufacturer established back in 1988, who have specialized in small and medium-sized industrial boilers in individual designs as complete units, including container solutions.

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.

THE STANDARD
CLASSIC STEAM BOILERS

More specific data on standard fire-tube steam boilers.

TYPE L-DJ

Other STANDARD Steam Boilers.

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.

TTBjette.gif (17425 bytes)

	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).

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

Steam Generator Boilers - economical alternatives with some important advantages when applicable.
Comparing Steam Boiler /Steam Generator
The exact differences in these two kind of industrial steam boilers
Electric Steam Boilers - fast and simple to install, especially attractive for small steam output.
Other Steam Boilers
The total survey of steam producing units.
Thermal Oil Heaters / Hot Oil Heaters - using heat transfer oil up to above 300°C at atmospheric pressure.
Hot Water Boilers - pressurised water up to 190°C.
Economizers & Exhaust Gas Boilers - production of steam (thermal oil or hot water) by heat recovery from exhaust gas cooling.
Incinerators - for ultra high temperature air combustion and efficient elimination of obnoxious smells / odours.

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] 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

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