Working
The separated steam is drawn out from the top section of the drum and distributed for process. Further heating of the saturated steam will make superheated steam normally used to drive a steam turbine. Saturated steam is drawn off the top of the drum and re-enters the furnace in through a superheater. The steam and water mixture enters the steam drum through riser tubes, drum internals consisting of demister separate the water droplets from the steam producing dry steam. The saturated water at the bottom of the steam drum flows down through the downcomer pipe, normally unheated, to headers and water drum. Its accessories include a safety valve, water-level indicator and level controller. Feed-water of boiler is also fed to the steam drum through a feed pipe extending inside the drum, along the length of the steam drum.
A steam drum is used without or in the company of a mud-drum/feed water drum which is located at a lower level. A boiler with both steam drum and mud/water drum is called a bi-drum boiler and a boiler with only a steam drum is called a mono-drum boiler. The bi-drum boiler construction is normally intended for low pressure-rating boiler while the mono-drum is mostly designed for higher pressure-rating.
On steam locomotives the steam drum is also called a steam dome
Read more about this topic: Steam Drum
Other articles related to "working":
... Technological change was revolutionizing the life of the working classes ... particularly those of 1846, that produced hardship among peasants and the working urban poor ... Working-class objectives tended to fall in line with those of the middle class ...
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... The Working Men's Parties (whose members were known as "the Workies") were the first labor-oriented political organizations in the United States ... The first Working Men's Party was founded in Philadelphia in 1828 ... member George Henry Evans established the Working Man’s Advocate, the first labor newspaper, in 1829 ...
... While working there, he saw some animation by Takashi Nakamura in ‘Gold Lightan’, an otherwise standard mecha TV series by a rival studio ... This opened many doors for him, from working as animation director on Otomo’s landmark feature ‘Akira’ and a chance to direct a short for the ‘Robot ... He is currently working on ‘Sachiko’, his second feature-length film ...
Famous quotes containing the word working:
“To get away from one’s working environment is, in a sense, to get away from one’s self; and this is often the chief advantage of travel and change.”
—Charles Horton Cooley (1864–1929)
“She isn’t harassed. She’s busy, and it’s glamorous to be busy. Indeed, the image of the on- the-go working mother is very like the glamorous image of the busy top executive. The scarcity of the working mother’s time seems like the scarcity of the top executive’s time.... The analogy between the busy working mother and the busy top executive obscures the wage gap between them at work, and their different amounts of backstage support at home.”
—Arlie Hochschild (20th century)
“Dad, if you really want to know what happened in school, then you’ve got to know exactly who’s in the class, who rides the bus, what project they’re working on in science, and how your child felt that morning.... Without these facts at your fingertips, all you can really think to say is “So how was school today?” And you’ve got to be prepared for the inevitable answer—”Fine.” Which will probably leave you wishing that you’d never asked.”
—Ron Taffel (20th century)