Babcock and Wilcox Boiler.1.Babcock and WilcoxBoiler.Contains: History Specifications Of Boiler Characteristics of boiler c0nstruction and working Salient features of boiler Advantages and disadvantages video.HISTORYo 1856 - Stephen Wilcox patents the water tube boil.o Stephen Wilcox and George Babcock established Babcock, Wilcox &Company.o The “Package Boiler” evolved from the marine boiler whichwas first started in 1889. Navy purchased its firstcoal-fired marine boiler from Babcock & Wilcox (B&W) in1894. Since then, B&W boilers have been installed on morethan 4,000 ships for the U.S. The sims complete collection patch fr jeux.
Babcock And Wilcox Boiler Ppt Templates Download
Babcock And Wilcox Boiler Schematic
Navy and Merchant Marines.During WWII, B&W boilers were furnished to the Navy forall but two battleships.o A page on Boilers fromAmerica’s Marine History:.o With the onset of America’s economic recovery duringWorld War II and the succeeding years, B&W respondedwith a new line of boiler to meet emerging customerdemands. The FM (Factory-Made) Package boiler wasintroduced in 1949 in response to the needs of smaller tomedium sized industrial plants that required a boiler thatwas compact and easy to install and operate.
Contents.History Martin Benson was the first to work on the idea of forced circulation drum boilers. Laterbrought the idea from papers to existence.Walter Douglas La Mont introduced the concept of this in the year 1918.
La Mont was a Navy Lieutenant Commander and an engineer in the US Navy. He died 1942 of a heart attack in New York.The initial designs of La Mont for this boiler 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. The time duration needed for starting a La Mont Boiler to be able to deliver an evaporation rate of 100,000 pounds per hour was between 15 and 20 mins and simultaneously was able to deliver peak loads. During the the U.S navy used and relied mainly upon the which were used commonly in those years.
On the other hand, thousands were built in Europe and several German and Japanese ships used La Mont boilers.Principle The circulation of water and steam mixture takes with the help of an external pump which supplies water at a higher pressure than in a natural circulation boiler.Working A centrifugal pump which forms the heart of this boiler is responsible to circulate water within the boiler system. It receives water from the drum and delivers this water to a distribution header as shown in the diagram here. The number of headers may differ in numbers and depends on the size and boiler design of each boiler.The boiler heating surfaces includes a number of tubes arranged in a parallel form and the inlet ends are welded to the distributors or the headers. A circulation pressure is to be provided during the installation of the pump as per the boiler design and it should be sufficient to over come the resistance offered by the tubes.An even circulation takes place with the helps of the inlet nozzles provided at the inlet of tubes which creates the differential pressure adequate to cover the variations occurring at fluctuating loads or uneven firing conditions.The riser tubes outlet is welded to the collector headers and also directly to the drum containing steam and water.References.