Lamont Boiler

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Lamont Boiler



  • Lamont boiler is developed in 1925 by La Mont.
  • It is built to generate 45 to 50 tonnes of steam at a pressure of 120 bar with a temperature 550-degree centigrade.
  • The feed water from the hot well is supplied to a storage and separating drum through the economiser.
  • Most of the sensible heat is supplied to the feed water passing through the economiser.
  • A pump circulates the water from storage drum to the radiant part of the evaporator in which part of the vapour is separated in the separator drum.
  • The large quantity of water circulated prevents the tubes from overheating.
  • The centrifugal pump delivers the water to the header at a pressure of 2.5 bar above the drum pressure.
  • The steam separated in the boiler is further passed through the superheater.


Advantages of Lamont Boiler


  • Light in weight
  • It has small diameter drum.
  • It can be rapidly started from cold condition.
  • Small dia tubes are use to increase evaporator surface area.
  • It has high evaporative capacity.


Limitations of Lamont Boiler


  • Due to pumping equipment power consumption increases.
  • High maintenance cost.
  • Requires fresh water as working media.
  • It operates below critical pressure.
  • Bubble inside water tubes surface reduces heat transfer.
                                  





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