Locomotive boiler locomotive boiler is horizontal drum axis, artificial draft, natural circulation, multitubular, mobile, forced circulation, medium pressure, solid fuel. Other different types of fire tube boiler are locomotive, lancashire, cornish, velcon, simple vertical boiler today we will look into construction or main parts, working, application, advantages, disadvantages of cochran boiler. But, it occupies more space and the vertical boiler occupies less floor area. Vertical cross tube water tube boiler working principle journal institution of locomotive engineers volume 40 1950 noted that standard coaching stock was allsteel, exploited welding, had buckeye couplers and pullman gangways which held the train together in the event of accidents. Stirling boiler is one of the most basic variety of bent tube boiler.
Babcock and wilcox boiler construction, working, application, advantages and disadvantages. A locomotive boiler is a device which is used to create steam from water by using heat energy. It a internally fired boiler because the furnace is placed inside the boiler. In this article, youll learn what is babcock and wilcox boiler its working principle, parts, advantages and more with pdf. Stirling boiler is one of the largest capacity boiler. Dieselelectric locomotives introduction an understanding of the structure of a locomotive mechanically and electrically is essential to a person attempting to perform maintenance and repair services on it. Also the salt content will goes on increasing due to evaporation of. Locomotive boiler construction, working and application. Steam boiler or simply a boiler is basically a closed vessel into which water is heated until the water is converted into steam at required pressure. Superheater technology has been used since the use of steam engines early 20th century.
The exhaust gases which are released to the atmosphere is naturally exhausted by a natural draught fan except in locomotive boiler. Here is a question for the readers, explain the contrast between a fire tube boiler and a water tube boiler. Parts, types, classification, advantages, application, and more. You can think of kettle siting on top of coal fire. The babcock and wilcox boiler is widely used in mines, power stations, and, in a. The boiler should generate maximum amount of steam at a required pressure and temperature and quality with minimum fuel consumption and expenses steam generation rate should be as per requirements of intended use, an extra over designed or under designed boiler is not a good choice. Working principle of steam boiler is very very simple. The fuel is burn inside the boiler and the water is circulating by a centrifugal pump through evaporator tubes.
Boilers bureau of energy efficiency 27 syllabus boilers. A stirling boiler can generate as high as 50,000 kg steam per hour and can produce pressure as high as 60 kgf per cm 2. Sep, 2018 if the axis of the boiler is inclined, then it is called an inclined boiler. Nov 17, 2017 superheater working principle superheater is a subcritical boiler s component that heat the saturated vapor, at constant pressure, so it becomes superheated steam.
The key boiler components involved in this process are the. Animation of how a steam locomotives boiler works youtube. Steam is supplied to the steam boiler in differen field like steam engine,steam turbine,thermal power plant,various heating installation process,different cotton mills,sugar factories etc. Packaged boiler is the most common and efficient type of fire tube boiler used in industry to produce steam and hot water. Mar, 2016 lamont boiler is a forced circulation, internally fired water tube boiler. This boiler consists of a horizontal cylindrical shell filled with water. Hot gases are produced by burning fuel in the furnace. The earliest form of firetube boiler was richard trevithicks highpressure cornish boiler. Thus, in this article, we have learned what is a fire tube boiler, different mountings, and accessories used for its operation, different types of fire tube boilers, advantages, and disadvantages. The above description of the lock and block or controlled manual. The construction of this is the same as any fire tube boiler with a little difference, and that differences i will mention below in this article. Babcock and wilcox boiler, lamount boiler, benson boiler and loeffler boiler. Steam boiler working principle and types of boiler.
Its a heat engine that is mainly driven by coal as a power source. What is boiler and its working principle engineering. Both gas and oil fired boilers use controlled combustion of the fuel to heat water. Locomotive boiler construction working and application with.
The babcock and wilcox boiler is widely used in mines, power stations, and, in a modified form, on shipboard. The basic working principle of boiler is very very simple and easy to understand. Locomotives give life to coaches and wagons which are otherwise dead hunks of metal which can best qualify as shelters during rains, converting them into trains. Working of boiler parts, efficiency, classification and. Boiler works on the principle of combustion of fuel. Locomotive boiler it is multitubular boiler used in railway engines. Dec 11, 2017 the working pressure and quality of steam required. This requires a heat source, a locomotive boiler to generate steam. Because this boiler has 116 general fire tubes and 38 superheated fire tubes. Generally, it moves with a velocity of 60 to 70 kmhour. The locomotive boiler is horizontal, multitubular, natural circulation.
Mar 10, 2016 lancashire is a horizontal, stationary fire tube boiler. Locomotives popularly called train engines are the heart and soul of the railway system. A boiler is a closed vessel in which water is heated, steam is generated, superheated or any combination thereof under pressure or vacuum by the direct application of heat from combustible fuels or electricity. Parts, construction, working, advantages and applications locomotive boiler locomotive boiler is horizontal drum axis, artificial draft, natural circulation, multitubular, mobile, forced circulation, medium pressure, solid fuel. These hot gases are made to come in contact with the water vessel where the heat transfer takes place between the water and the steam. A manhole is providing with this boiler and for this reason, it is easy to clean and. Because this boiler has 116 general fire tubes and 38 superheated fire. Locomotive boiler is a horizontal drum axis, multitubular, natural circulation, artificial draft, forced circulation, mobile, medium pressure, solid fuel fired fire tube boiler with an internally fired furnace. It is a mobile boiler and has a high steam generation rate. Locomotive boiler construction working and application. Single phase 25 kv is stepped down and converted in to dc, then this dc supply is used to run dc traction motors equipped in conventional locos. Steam boiler working principle and types of steam boiler.
A steam boiler is a closed vessel, generally made of steel, in which water is heated by some source of heat produced by combustion of fuel and ultimately to generate steam. This boiler is invented by sir william fairbairn in the year 1844. The boiler is a closed vessel in which the water is stored. The main purpose is to increase the heat energy contained by the steam, so that increasing the thermal efficiency of the engine. Cochran boiler main parts, working, advantages and. Working principle both gas and oil fired boilers use controlled combustion of the fuel to heat water. A boiler is used in many industries such as in steam power generation, in sugar industries, in textile industries for sizing and bleaching etc. The fluid is contained in the boiler drum called shell and the thermal energy released during combustion of fuel is transferred to water and this converts water into steam at the desired temperature and pressure. Fire tube boiler construction and working principle of fire tube boiler. These are the lowpressure boiler which cannot generate much heat compared to water tube boilers. Benson boiler construction, working principle and advantages with diagram.
As the name states the function of a steam boiler is very simple i. Cochran boiler pdf main parts, working, advantages, and disadvantages. Mar 04, 2020 stirling boiler is one of the most basic variety of bent tube boiler. It is partly filled with water and then sealed, after which a. In water tube boilers, the water flows inside the tubes called water tubes that are surrounded by flames and hot gases from outside. Jan 31, 2017 animation of how a steam locomotives boiler works duration. Nov 20, 2019 babcock and wilcox boiler construction, working, application, advantages and disadvantages. And these hot flue gases are passed through the pipe continuously until the surrounding water gets heated. Understanding the working of boiler is very simple. Lancashire, locomotive,and babcock wilcox boilers are natural boiler and benson,voles boiler are forced circulation boilers. Aug 30, 2019 we will discuss the fire tube boiler, different types of firetube boilers, defects, and uses.
The simple boiler is like a barrel, consisting of a cylindrical steel shell, with the ends closed by flat steel heads. Aug 20, 2012 unsubscribe from ultimate restorations. Ultimate restorations is the hit show now available on amazon prime video. Steam boilers parts, types, working principle thermal engg. Simple verical noiler, cochran boiler, lancashire boiler and locomotive boiler.
It is partly filled with water and then sealed, after which a fire is started beneath it. This is most basic definition of boiler working principle of boiler. These courses, and the hrwl, currently only cover a part of what is required to. In this article, we discussed construction, working principle, advantages, disadvantages, and application of locomotive boiler. Locomotive boiler construction working and application with diagram. A slightly more successful adoption was the use of hybrid watertube firetube systems. This boiler delivers to site as a whole package factory assembled. Mar 04, 2020 boiler or more specifically steam boiler is an essential part of thermal power plant.
A firetube boiler is a type of boiler in which hot gases pass from a fire through one or many more tubes running through a sealed container of water. In fire tube boilers, hot flue gases will be flown inside the tube and these tubes are surrounded by water. Download cochran boiler pdf at the end of the article. Now, the water will ultimately convert into vapour and now this steam is ca. Fire tube boiler working principle and its types elprocus. It is basically a shell and tube type heat exchanger in which the flue gases flow through the tubes and the water flows through shell. Steam boiler types, construction and working principle. Lamont boiler is a forced circulation, internally fired water tube boiler. What is a boiler basically and a general difference between a steam generator and boiler. Source slideshare basic principle of lancashire boiler.
Selection of a boiler, essentials of good boiler, classification of a boiler, diagram of the boiler, boiler. A stirling boiler can generate as high as 50,000 kg steam per hour and. All of the boiler fittings discussed are important and must be operated and maintained properly to operate a boiler safely. Locomotive boiler classification of boiler horizontal drum axis, natural circulation, artificial draft, multitubular, medium pressure, mobile, solid fuel fired, fired tube boiler with furnace located in tubes. The reference text on which this subcourse is based is a broad presentation of locomotive structure and a basic outline of maintenance. Construction and working of locomotive boiler, mechanical. The burner mixes the fuel and oxygen together and, with the assistance of an ignition device, provides a platform for combustion.
In order that the combustion takes place, it needs some requirements. Lancashire is a horizontal, stationary fire tube boiler. Aug 01, 2019 cochran boiler pdf main parts, working, advantages, and disadvantages. The construction of a water tube boiler can be equipped with cylindrical shell, vertical, firebox in the base, space for water in the center segment, and space for steam in the higher segment. Steam boiler is a cylindrical shape closed vessel which has sufficient capacity to contain water and steam. As the hottest part of a locomotive boiler is the firebox, it was an effective design to use a watertube design here and a conventional firetube boiler as an economiser i. Firebox boiler 8 locomotive convection furnace furnace. It is used in railway locomotive engines and in marine. In cochran boiler first the fuel is inserted into the firebox and placed on the grate. Working principle, least count, errors and more complete guide. This boiler works on the basic principle of heat exchanger. Mobile boiler is that kind of boiler which move one place to. Aim to study and sketch about the principle and working of two stroke diesel engine.
Fuel burn oil or natural gas air oxygen is required for combustion process. It is what is commonly known as a tank locomotive since it carries the water and fuel upon the. Be it diesel or electric, locomotives are actually run by a set of electric ac. The boiler depends on the process of combustion where heat is generated by the burning of fuel. The water supplied to the boiler always contains impurities like mud, sand and, salt due to heating, these are deposited at the bottom of the boiler, and if they are not removed, they are accumulated at the bottom of the boiler and reduce its capacity and heat transfer rates. Construction and working principle of vertical boiler. The boiler is known as externally fired boiler if the fire is outside.
The flue gases flows through the fire tube, situated inside the boiler shell, so it is a fire tube boiler. Oct 29, 2017 a boiler can be defined as a closed vessel in which steam is produced from water by combustion of fuel. On this channel you can get education and knowledge for general issues and topics. Its easy to operate this boiler and it required less maintenance. Cochran boiler diagram,main parts,working, advantages. The key boiler components involved in this process are the burner, combustion chamber, heat exchanger, and controls. A boiler can be defined as a closed vessel in which steam is produced from water by combustion of fuel. In most of the modern thermal power generating plants we use bent tube boiler. Mar 02, 2017 locomotive boiler construction working and application with diagram march 2, 2017 february 14, 2020 pankaj mishra 3 comments boiler, boilers, thermal engineering locomotive boiler is a horizontal drum axis, multitubular, natural circulation, artificial draft, forced circulation, mobile, medium pressure, solid fuel fired fire tube boiler. Construction and working principle of locomotive boiler. Mechanical engineering assignment help, construction and working of locomotive boiler, constructio n and working. Types, combustion in boilers, performances evaluation, analysis of losses, feed water treatment, blow down, energy conservation opportunities. The diesel and electric locomotive story and working 24 coaches. Heat exchanging is the basic working principle of this boiler.
The fire itself was on an iron grating placed across this flue, with a shallow ashpan beneath to collect the noncombustible residue. This is a long horizontal cylinder with a single large flue containing the fire. Construction and working principle of lancashire boiler. It is a horizontal drum axis, multitubular, natural. The package boiler only requires electricity, water, steam and fuel connections and it is ready to produce steam. Principles of steam locomotive valve systems page 5 2. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam. A firegrate is located at the firebox base as well as coal is firedup on the. Boiler or more specifically steam boiler is an essential part of thermal power plant definition of boiler.
The boiler barrel is cylindrical shell and consists of large number of flue tubes. It is has a shell and tube type heat exchanging system. The basic working principle of boiler is very very simple and easy to. What is boiler and its working principle engineering insider. Superheater working principle superheater is a subcritical boilers component that heat the saturated vapor, at constant pressure, so it becomes superheated steam. Mechanical engineering channel anuniverse 22 has started to stand on the shoulders of engineering giants and now, it is a place. Cochran boiler is one of the best types of the vertical, multitubular boiler which has a number of horizontal fire tubes used for the generation of steam. The parts of a horizontal boiler can be inspected and repaired easily. In this article, i will explain about what is a boiler. This design allows for air to enter and escape during filling and draining of the boiler. As the name denotes locomotive boiler that means these types of boiler moves with a certain velocity. It is a horizontal drum axis, multitubular, natural circulation, artificial draft, forced circulation, mobile, medium pressure, solid fuel fired fire tube boiler that has an internal fire furnace. In this article you will learn about what is locomotive boiler, its working, advantages and disadvantages with application.
Using grate we insert the fuel into the boiler and then providing the fire to ignite the fuel when fuel starts burning the hot flue gases are produced. Construction and working principle of locomotive boiler online. The barrel comprise of a rectangular fire box at one end and a smoke box at the other end. Locomotives work based on a really simple principle. Rail locomotive boilers office of the national rail safety regulator.