For softening calsium or magnecium hardness and its become slury, other effect is by used phosphate can increased the Ph value.
Shakhawat
boiler are working on same principal but automatic and manual boiler has difference that manual boiler working at single element loop and automatic boiler work at three element loop.single loop means when fuel increase mean load increase on boiler by adjusting fuel operator has to adjust steam drum level manualy , while automatic means when load increas, fuel increase steam drum level adjust automaticaly by watching fuel consumption.
In the steam drum, where steam exits and flows to the superheaters.
the decay of boiler material by chemical or electrochemical attack by its environment is known as boiler corrosion
one of the main purpose of refractories in the boiler furnace is to
what gas boiler alleviates the need for a cwsc
Sodium phosphate (Na3PO4) can be dosed into a boiler drum to prevent scale formation and corrosion. It acts as a phosphate-based boiler water treatment that helps to maintain the alkalinity and pH levels in the boiler water, which in turn reduces the risk of scale buildup and minimizes the likelihood of corrosion on the boiler surfaces. Additionally, sodium phosphate can help to sequester hardness ions, such as calcium and magnesium, preventing them from precipitating out and forming scale.
The steam drum separated the steam from the water and stream mixture in the boiler drum.
Purpose of the boiler drum is to collect steam from all the various tubes in a boiler, and send it to the turbine to spin the generator
boiler drum diffferential pressure level calculation explained
Generator
Overheating of water wall tubes may cause crack. Boiler will damage due to boiler drum level goes down.
as the boiler drum is cylindrical in shape due to low stress concentration and in both end the diameter will be less.so for easy entry into the drum for a man the drum man hole is elliptical in shape.
see results in attached link: Philips 3-drum 'Accessable' boiler
The swelling and shrinking effect in a boiler drum refers to the physical changes in the drum's volume due to temperature variations and pressure changes during operation. When the boiler is heated, the water inside converts to steam, causing the drum to swell as the pressure increases and the water expands. Conversely, when the boiler cools down or experiences a drop in pressure, the drum may shrink as the steam condenses back into water. This phenomenon is important to consider for the structural integrity and safety of the boiler system.
This is due to steam seperation the silica remains in the drum water.
see results in attached link: Philips 3-drum 'Accessable' boiler
A drumless boiler is obviously a boiler without a drum. The steam is fed into a header, then into a turbine for making electricity. Quality control of the water used is of extreme importance. Since there is no water level in a drum to maintain, feedwater must be constant with no interruption of any kind. With a drum type, water feed can be interrupted for a very short time. Not so with a drumless type.