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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.
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Boiler drum which chemicals are using?
chemical is used in sub critical boiler that is tri sodium phosphate added in durm. The main purpose is raise in pH value , salt is converted in to sludge form
What is entrainment in the boiler?
There are basically two types of boilers one is the conventional boilers with a drum or shell in which water (obviously well treated water) is heated and as it is heated it produce stem. The steam occupy the top space and the bottom part is filled with water hot and pressurised. When the process requirements whether it is for steam turbine or for chemical process we need dry steam. If the water level is too high and or if the boiling velocity is too high the water droplets instead of leaving the boiler drum as steam some water droplets leave with the steam. This is no good for the process as we need steam but we are getting water. This water entering the system is called entrainment. If the boiler is highly rated i.e. we are heating too much and heating very hard then the top of the water face on the drum through which the steam leaves takes water drops as well. This is called entrainment. Regards Stephen Pathmarajah
What does drum mean on os map?
On an Ordnance Survey (OS) map, a "drum" refers to a rounded hill or mound, typically formed by glacial activity. Drums are characterized by their elongated shape, often with a steeper slope on one side and a gentler slope on the opposite side. They are important features in the study of geomorphology and can indicate past glacial movements.
How are membranophones classified?
Membranophones are classified based on the type of membrane or drumhead they have, such as single-headed (like a tambourine) or double-headed (like a snare drum or conga). They can also be classified by shape, such as cylindrical (like a conga drum) or frame (like a tambourine). The material used to construct the membrane, as well as the method of sound production, also play a role in classifying membranophones.
Why shouldn't you store toxic chemicals in metal drum?
Because the drum could rust through and release the chemicals, or be contacted by electricity and cause a fire...if you need to store toxic chemicals in a metal drum, you put a drum liner in first, and pour the chemicals into the liner. A drum liner is a very thick plastic bag.
Why are boiler drums manhole elliptal?
Boiler drum manholes are often elliptical to provide a larger opening for maintenance and inspection while minimizing the structural weaknesses that can arise from larger circular openings. The elliptical shape distributes stress more evenly across the drum, enhancing its integrity under high pressure and temperature conditions. Additionally, the design allows for better sealing and reduces the risk of leaks. This combination of practicality and safety makes elliptical manholes a preferred choice in boiler design.
Why boiler drum manholes are elliptical in shape?
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.
Why boiler drum in cylindrical shape?
because in cylindrical shape stress concentration is less so it can withstand at high pressure also.
What is the use of steam drum in boiler?
The steam drum separated the steam from the water and stream mixture in the boiler drum.
What is the purpose of 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
How calculate actual boiler drum level?
boiler drum diffferential pressure level calculation explained
What is the area between the steam drum and the mud drum ona boiler?
Generator
What will happen when boiler steam drum level goes down?
Overheating of water wall tubes may cause crack. Boiler will damage due to boiler drum level goes down.
What is Swelling and shrinking effect in boiler drum?
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.
What is efficiency of boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
Why silica increase in boiler drum inspite of 02ppm silca im boiler make up water?
This is due to steam seperation the silica remains in the drum water.
What is efficiency of Lamont boiler?
see results in attached link: Philips 3-drum 'Accessable' boiler
