Steamships that still sail in Swedish waters with their original steam engines.
Steamship Blidösund Scotch Marine steam boiler with three coal fired furnaces. Compound steam engine with Flodman's valve-gear.
Steamship Bohuslän Scotch Marine steam boiler with three oil fired furnaces. Triple expansion steam engine with Stephenson's link-motion.
Steam Icebreaker Bore Scotch Marine steam boiler with one single furnace. Compound steam engine with Klug's valve-gear.
Steamship Boxholm II Scotch Marine steam boiler with three funaces. Marine compound steam engine with Hackworth's valve-gear.
Steam ferry Djurgården 3 Scotch Marine steam boiler. Compound steam engine with Stephenson's link-motion.
Steamship Domnarfvet Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship Drottningholm Oil fired Scotch Marine steam boiler. Triple expansion steam engine with Flodman's valve-gear
Steamship Ejdern Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship Elfdalen Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship Engelbrekt Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Paddle Steamer Eric Nordevall II Daniel Fraser's steam boiler. Two side-lever steam engines. 17 hp each. 20 rpm
Steamship Flottisten Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship Freja af Fryken Scotch Marine steam boiler with one furnace. Single cylinder steam engine with valve-gear and expansion slide-valve.
Steamship Frithiof Dry-back fire tube boiler with one furnace. Compound steam engine with Flodman's valve-gear.
Steam ferry Färjan 4 Scotch Marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship Mariefred Coal fired Scotch Marine steam boiler with two furnaces. Compound steam engine with Flodman's valve-gear.
Steamship Motala Express Scotch Marine steam boiler with two furnaces. Triple expansion steam engine with Stephenson's link-motion.
Steam tug Nalle Oil fired Scotch Marine steam boiler with two furnaces. Compound steam engine with Stephenson's link-motion.
Steamship Norrskär Scotch Marine steam boiler with three oil fired funaces. Compound steam engine with Flodman's valve-gear.
Steamship Polstjärnan Scotch Marine steam boiler with two furnaces. Compound steam engine with Stephenson's link-motion.
Steamship Saltsjön Scotch Marine steam boiler with three oil fired furnaces. Compound steam engine with Flodman's valve-gear.
Steam Icebreaker Sankt Erik Four single-ended Scotch Marine steam boilers with three furnaces each.
Steamship Stockholm Scotch Marine steam boiler with three furnaces. Triple expansion steam engine with Stephenson's link-motion.
Steamship Storskär Scotch Marine steam boiler with three oil fired funaces. Triple expansion steam engine with Stephenson's link-motion.
Steamship Trafik Scotch Marine steam boiler with three oil fired funaces. Compound steam engine with Stephenson's link-motion.
Steamship Tärnan Scotch Marine steam boiler. Compound steam engine.
Steamship Warpen Scotch marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steam tug örnen Scotch marine steam boiler with one furnace. Marine compound steam engine with Stephenson's link-motion.
Steamship östa Scotch marine steam boiler with one furnace. Compound steam engine with Stephenson's link-motion.
Steamship östersund Scotch marine steam boiler. Compound steam engine with Stephenson's link-motion.
Marine steam boilers alarm and trip functions The most important alarm and trip functions on marine steam boilers.
Marine Boiler Questions and Answers What should be done if oil is showing in the steam marine boiler's water level gauge glass.
Marine boiler control automatic An easy way to find out if your marine steam boiler control system lights up the first burner safely.
Marine boiler Control The very best way to get redundancy in a marine steam boiler plant would be to have two completely independent one boiler control systems.
Marine boiler Safety marine steam boiler plants require adequate control systems to raise steam, maintain design conditions for steady steaming, secure the boiler units and detect promptly malfunctions and failures.
Fail-safe, Marine boiler control Fail-safe; any predictable failure must result in a safe situation.
Marine steam boilers Steam and Water Steam flow diagram for an exhaust gas boiler and two oil-fired auxiliary Marine marine steam boilers.
Marine steam boilers Heavy Fuel Oil Fuel Oil flow diagram for two oil-fired auxiliary marine marine steam boilers
Marine steam boilers water level control Sophisticated methods are required for a steam-boiler with high steam production and relatively small water volume.
Two marine boiler operations Keeping a slave steam-boiler pressurized in a two boiler system.
Marine steam boilers HFO firing How to burn marine bunker oil.
Marine steam boilers Smoke Density Meter A plant that never shows traces of smoke at the funnel is not burning the fuel efficiently.
Waste oil firing in marine steam boilers Is the sludge a waste oil just to get rid of or is it a valuable fuel?
Heat transfer media: steam, oil and water A comparison between the heat transfer media
Marine steam boiler Accessories
Marine boiler's Steam sootblowing A steam soot blower consists of a number of nozzles on a pipe that rotate and sometimes moves axially between the banks of tubes.
Marine boiler's Water soot washing A water washing devise is normally a number of water nozzles placed over the tubes and the water washes the tubs and the sooty water is then collected in a pit below.
Marine boiler's Infrasonic soot cleaning Infrasonic sound from a special loudspeaker make the soot vibrates off the tubes.
Marine boiler's Steal balls soot cleaning Small steel balls falling from the top of the boiler, bouncing from one tube to the next one.
Marine boiler's Combustion air preheater While the utilization of the waste heat in the chimney gases for preheating the combustion air supplied to the boiler furnace, by means of air heaters, has long had a wide use, as, for example, in the Howden air heater.
Marine boiler's Superheaters Superheaters are essentially a bank of tubes, in the exhaust gas duct after the boiler, used to heat the steam above the saturation temperature.
Accessories for marine steam boilers
Marine Boiler Constbructions
Babcock Wilcox marine steam boilers In a Babcock & Wilcox water-tube steam-boiler are the water-tubes lying, but slightly inclining towards the boiler front
Belleville marine steam boilers The marine steam boiler feed water was fed into the to the feed water collector, at the lower end of the tubes, by means of an automatic feed water controller
Carlsund marine marine steam boilers Still very low steam pressure but you can see some of the Scotch marine steam boiler's ideas already used
Combustion Engineering V2M8 marine steam boilers V2M8 marine steam boiler whose major design features are the gastight waterwall furnace and the vertical in-line inverted U-loop superheater
Combustion Engineering V2M9 marine steam boilers The most outstanding feature of the V2M9 marine steam boiler is the combustion
Cochran marine steam boiler The Cochran marine steam boiler has a dome-shaped furnace top that forms the bottom of the boiler itself
Composite marine steam boiler Composite marine steam boilers are combination of oil-fired boilers and exhaust gas economizers
Eckrohr marine steam boiler Eckrohr marine steam boiler, Corner Tube marine steam boiler, is a marine steam boiler for all kinds of fuel. Originally it got its name because it has downcomers in the four corners
Exhaust Gas marine steam boilers Exhaust Gas marine steam boilers also known as Exhaust Gas Economizers, with extended heating surface, used for waste heat recovery in motor ships
Fraser marine steam boiler These marine steam boilers didn't have tubes, but plate-ducts for the exhaust gases to pass through the water space
Gunboat marine steam boilers The gunboat marine steam boilers were, as the name indicates, used in small navy ships such as gunboats, escort vessels and corvettes where the width and the height were limited
Howden-Johnson, a hybrid Scotch marine steam boiler The Howden-Johnson marine steam boiler tried to improve the poor water circulation in the common Scotch fire-tube boilers by adding water-tubes in a dry-back combustion chamber
LaMont, Forced circulation marine steam boiler The LaMont marine steam boiler is a once-through or semi-flash boiler in which the boiler water is circulated by means of a pump through long closely spaced tubes of small diameter
Normand marine steam boilers The main difference between the Normand marine steam boiler and the Yarrowboiler is the external downcomers.
Nuclear marine steam boiler Nowadays marine nuclear marine steam boilers are used in large navy ships and icebreakers serving in Arctic waters
Prud'Hon Capus, a hybrid Scotch marine steam boiler It was claimed that this modification made the Prud'Hon Capus boiler 10 per cent more efficient than conventional Scotch fire-tube marine steam boilers
Schulz marine steam boilers Schulz marine steam boiler has three water drums at the bottom; connected to the steam drum by means of bended tubes that discharge below the water level in the steam drum
Scotch marine steam boilers A Scotch marine steam boiler consists of a steam drum and one to four fire-tubes in which furnaces heats the boiler
Marine steam generators SKI, once through boilers Standardkessel Italiana has produced the SKI steam-generator.
Marine Steam generators TT, once through boilers The steam generator is a mono tube flash boiler. "Once through boiler" means that the feed water enters into one end of a heated tube and steam exits from the other end
Stirling marine steam boiler The Stirling marine steam boiler was originally built by The Stirling Consolidated Boiler Company in Baberton, Ohio, U.S.A., until 1906, when Babcock and Wilcox bought the design from them
Sunrod marine steam boilers In a Sunrod marine steam boiler a waterwall makes a gas-tight furnace from which the flue gases pass through the Sunrod pin tube elements to the smoke-box on the top of the boiler. The Sunrod boilers are nowadays manufactured by Aalborg Boilers.
Thornycroft marine steam boiler These marine steam boilers have an upward narrowing shape and call for, especially if they are placed side by side, a larger space than other square-shaped boilers
water-tube marine steam boiler A water-tube boiler consists of a large number of closely spaced water-tubes connected to one or more drums, which act as water pockets and steam separators, giving rapid water circulation and quick steaming
Yarrow marine steam boilers A Yarrow marine steam boiler consist of an upper steam drum connected by banks of inclined water-tubes to two lower water drums
Marine steam boilers level sensors
Marine boiler level differential pressure This boiler level measuring method uses a differential pressure measuring system with "wet leg", that is, the impulse pipes to the positive measuring point below the lowest water level and the impulse pipe to the negative measuring point above the highest water level, are both filled with water
Marine boiler level capacitance electrode An insulated electrode is placed in the boiler and the length should be sufficient to reach the water at all acceptable levels. The insulated electrode and the boiler work as a capacitor with the water and the steam as a variable dielectric medium
Marine boiler level conductivity electrode It's normally one boiler level electrode for emergency low water level alarm, or two electrodes if also high level alarm is required. This water level sensing method is also common on small boilers for start and stop of the feed water pumps
Marine boiler level float Boiler level float switches have been used for decades as level switches in boilers, but nowadays electrodes have replaced them
Marine boiler level equipment
Atomizers for marine boiler HFO burners
Fuel Oil Atomizing Some methods are suitable for heavy fuel oil, and others are better to be used with diesel oil
Fuel pressure jet atomizer The pressure jet atomizer utilizes the supply pressure energy to atomize the fuel into a spray of finely dispersed droplets
Intenal mix steam atomizer The burner lance consists of two concentric tubes, a one-piece nozzle and a sealing nut. The media supplies are arranged so that the steam is supplied down the centre tube and the fuel oil through the outer tube
External mix steam atomizer The steam-assisted pressure jet burners atomizer is designed to make full use of pressure jet atomization at high outputs and full use of blast atomization at low outputs
Rotary cup atomizer The fuel oil flows at low pressure into the conical spinning cup where it distributes uniformly on the inner surface and throws off the cup rim as a very fine oil film
Low pressure air atomizer The principle is similar to that of the rotary-cup-atomizer, but the fuel is forced to rotate in a fixed cup by means of a forcefully rotating primary airflow
Medium pressure air atomizer Boiler plant usually employs the medium pressure air atomizing burner that is capable of extremely fine atomization and low pollution
Blue flame burner atomizer In the blue flame burner some of the hot gases from the flame are recirculated back to the inlet where they mix with and heat the combustion air
Fuel oil atomizers
Gooch valve-gear for marine steam-engines
Hackworth valve-gear for marine steam-engines
Klug valve-gear for marine steam-engines
Stephenson link motion for marine steam-engines