Boiler water level sensors by Lars Josefsson

Boiler water level sensors


Marine boiler level differential pressure This boiler level measuring method uses a differential pressure measuring system with "wet leg".
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.
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.
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 displacer A boiler level displacer (a float heavier than the water) is suspended to a spring balance by means of a stainless steel cable or a rod.

Steam boilers

Boiler Questions
Marine steam boilers alarm and trip functions The most important alarm and trip functions on marine steam boilers.
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.
Steam boilers Merchant marine has since the beginning of the steamship era used steam boilers; in the beginning for vessels propulsion but nowadays mostly for other purposes.
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

Windows programs

FUEL OIL Calculation Program
UNITS Conversion Program

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