14/10/2013 · BOILERS Uses of Boilers • To generate steam to drive turbines to generate electricity. • Steam used for air conditioning systems. • Steam used for driving steam engines. • Steam used for boilers to run ships using super heated steam. • Steam used for auto clave's, portable heat /hot water
The common steam locomotive boiler is a horizontal straight fire tube boiler with riveted cylindrical boiler courses, a stayed internal firebox at the rear, and a smokebox at the front. Operating pressure ranges up to 300 psi.
The water tube boiler is capable of raising steam to a much higher pressure than the shell or fire tube boiler. For an example of a Yarrow marine boiler we may take one having a total heating surface of 3,420 sq. ft., of which 870 sq. ft. are provided by the superheater.
17/7/2006 · For high pressures the water-tube boiler is universally used. The steam drums and their interconnecting tubes are of relatively small diameter with thick walls and therefore much stronger. The next difficulty is that of scale deposition and corrosion in the boiler tubes.
In locomotive boiler,maximum steam pressure is limited to.. A. 1 kg/cm 2 B. 5 kg/cm 2 C. 10 kg/cm 2 D. 18 kg/cm 2
The feed water system provides water to the boiler and regulates it automatically to meet the steam demand. Various valves provide access for maintenance an d repair.
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steam and water pass through the combining cone, enters the delivery cone and is forced. by its own velocity into the boiler. Excess water escapes through the overflow pipe. The injector works as follows. When the steam is turned on, it issues from the cone at considerable velocity and
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1. Union Pacific Steam Locomotive #844 was retubed during the winter of 1995-96 using the UP Standard Practice for boiler repairs. 2. UP Standard Practice for boiler repairs as written during the steam era expects boiler water supply from UPRR treated 3.
2019-10-9 · A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating
Mass of steam formed = 9H2. Then the heat lost to steam per kg of fuel = 9H2[2676 + cp(tg- 100) - hb] Note: Heat lost to steam and moisture per kg of fuel = (9H2+ mm) [2676 + cp(tg- 100) – hb] Where, mm= mass of moisture per kg of fuel, hb= enthalpy of evaporation obtained from steam table at boiler
Water tube boilers offer advances in steam-producing technology. It is different than fire tube technology in that the flame from the furnace is shot into a large containment area, where it literally bounces off the rear wall and distributes heat more evenly and efficiently, thus reducing fuel costs.
In the locomotive boiler, the saturated steam is very often passed into a superheater, back through the larger flues at the top of the boiler, to dry the steam and heat it to superheated steam. The superheated steam is directed to the steam engine's cylinders or very rarely to a turbine to produce mechanical work.
Steam formed in the boiler is led to the upper box of the superheater by a vertical T-tube placed in the steam space of the drum. The T-tube is perforated and works as an anti-priming pipe. The steam from the upper box passes through U-tubes attaining high temperature then it enters the lower connecting box from where it is led into the main steam pipe.
A locomotive boiler is a device which is used to create steam from water by using heat energy. It is a horizontal drum axis, multi-tubular, natural circulation, artificial draft, forced circulation, mobile, medium pressure, solid fuel fired fire tube boiler that has an internal fire furnace.
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