In what form are the boiler tube arrangement in Lamont boiler?
parallel form
4. In what form are the boiler’s tube arrange in Lamont boiler? Explanation: The boiler heating surface includes a number of tubes arranged in a parallel form and the inlet ends are welded to the distributors or the headers.
What is the main advantage of Lamont boiler?
The advantages of Lamont boiler are as follows. It has a high heat transfer rate. Its design is simple. It can be easily started. It can be reassembled with the natural circulation boilers.
What is the major limitation of the Lamont boiler?
The major disadvantages of the Lamont boiler are bubble formation at the surface of the tubes that reduces the transfer rate of heat and causes low steam generation.
Is Lamont boiler a high pressure boiler?
Lamont boiler is a high pressure, forced circulation, water tube boiler with internally fired furnace. An external pump is used to circulate the water within small diameter water tubes of the boiler. This boiler was invented by Walter Douglas La-Mont in the year 1925.
How does a LaMont boiler work?
A LaMont boiler is a type of forced circulation water-tube boiler in which the boiler water is circulated through an external pump through long closely spaced tubes of small diameter. The mechanical pump is employed in order to have an adequate and positive circulation in steam and hot water boilers.
What is the working pressure of La Mont boiler?
These gases form the superheater again use to preheat the air into air preheater before exhausting into the atmosphere. This working pressure of this boiler is above 170 bar and have the steam generation capacity of about 50000 kg/hour at temperature 773 K.
What is La Mont?
The La Mont boiler is an ideal waste heat boiler and also suitable for applications requiring a special boiler design, e.g. due to lack of space. Therefore, local conditions are almost irrelevant as water circulation can be easily realised also at angled tube arrangements due to the circulation pump.
What is basic difference between La Mont boiler & other boilers?
La Mont’s initial designs confirmed the lighter, safer and higher rates of heat transfer and evaporation per square foot as compared to that of the standard water tube boilers, also the circulation of vaporized water at a differential pressure of 2.5 bar was 8 to 10 times greater.
Where is Lamont boiler used?
In this, an external water tube pump is used to circulate water within the boiler’s water tubes. Therefore, the water pressure in the tubes is higher than the water pressure in the natural circulation boiler. Lamont boilers are mainly used for generating electricity.
How does a Lamont boiler work?
Which safety valve is used on high pressure boilers?
Relief valves
Relief valves are used in the high pressure boiler. High and low pressure boilers use pressure relieve valves. The pressure is maintained by releasing excess pressure.