Boiler Parts And Their Functions Pdf

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Basic Parts of a Boiler Hunker A boiler is a self-contained combustion system that heats water. The hot water or steam produced by a boiler is then used in heating systems. Although designs vary, a boiler has four main parts : the burner, the combustion chamber, the heat exchanger and the pluming apparatus.

water tube boiler parts and functions pdf

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Its function is to transfer the heat produced by the combustion of fuel to water and ultimately to generate steam. The steam generated may be supplied : 1. To an external combustion engine, i. At low pressures for industrial process work in cotton mills, sugar factories , breweries etc. For producing hot water, which can be used for heating installations at much lower pressures 4.

Shell: Consists of one or more steel plates bent into a cylindrical form and riveted or welded together. The shell ends are closed with end plates 8. Furnace: it is the chamber formed by the space above the grate and below the boiler shell, in which combustion takes place.

Grate: it is a platform in the furnace upon which fuel is burnt Ash Pit The ash pit is the space where ashes accumulate under the fire. The ashes fall through the fire grate into a often removable box. Mud Ring or Mud Drum A typically cylindrical shaped space at the bottom of the water space. Sediment, mud, and other impurities gather there. Used to prevent excessive pressure from building up in a boiler.

This indicates the pressure of the steam in the boiler. A fusible plug operates as a safety valve when dangerous temperatures, rather than dangerous pressures, are reached in a closed vessel.

The high pressure feed water is supplied to the boiler through this valve. This valve opens towards the boiler only and feeds the water to the boiler. Ex: Babcock and Wilcox boiler, stirling boiler, la - Mont boiler, yarrow boiler and loeffler boiler The heat is conducted through the walls of the tube from the hot gases through the surrounding water. Ex: Cochran boiler, Lancashire boiler, Cornish boiler, Cont… ParticularsParticulars Fire-tube boilersFire-tube boilers Water-tube boilersWater-tube boilers TransportationTransportation DifficultDifficult SimpleSimple Shell diameterShell diameter Large for same powerLarge for same power Small for same powerSmall for same power Chances of explosionChances of explosion LessLess MoreMore Treatment of waterTreatment of water Not so necessaryNot so necessary More necessaryMore necessary Accessibility of variousAccessibility of various partsparts Various parts not so easilyVarious parts not so easily accessible for cleaning,accessible for cleaning, repair and inspectionrepair and inspection More accessibleMore accessible Requirement of skillRequirement of skill Require less skill forRequire less skill for efficient and economicefficient and economic workingworking Require more skill andRequire more skill and careful attentioncareful attention The shell and fire box both are hemispherical.

Locomotive boiler Babcock and Wilcox boiler They consist of a large brick-built chamber with a sinuous gas path through it, passing over near-vertical water-tubes that zigzag between multiple steam drums and mud drums.

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KEY COMPONENTS OF BOILERS

What is a water tube boiler? Water tube boilers were developed for a variety of reasons, including the need for higher steam pressures, higher steam generation rate, superheated steam. We briefly discuss about Water tube boiler parts and functions. Axis of. Apr 9, Describe essential parts of boiler and their functions.

In the last session, we had discussed Lamont boiler , Benson boiler , Cochran boiler , Babcock and Wilcox boiler in a detailed way whereas, in today's session, we will discuss What is a Boiler? Selection of a boiler, Essentials of Good boiler, Classification of a boiler, Diagram of the boiler, Boiler Mountings, and Boiler Accessories in a detailed way. The working principle of the boiler is very simple. For bathing, especially in winter, you need to heat water so you should not feel coolness around you. However, at home, you cannot collect the steam but in the industries, that steam is used to generate electricity. The boiler is a closed vessel that stores the water in it.

water tube boiler parts and functions pdf

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All about Boilers

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Water tube boilers were developed for a variety of reasons, including the need for higher steam pressures, higher steam generation rate, superheated steam. We briefly discuss about Water tube boiler parts and functions. In the water tube boiler, the water and steam flow inside the tubes and the hot gases flow over the outside surfaces. Where as in fire tube boilers hot gases from combustion travels through the tubes. In a typical Water tube boiler design as shown in the figure, it consists of two drums the steam drum and the water or mud drum. On this design straight tubes were rolled into mud drum, and the front headers were connected to the steam drum.

Брови Росио выгнулись. - О. Я вижу, вам действительно очень нужно это Кольцова. Беккер мрачно кивнул. - Кому вы его продали. Тучный немец в полном недоумении сидел на кровати. Надежды на романтический вечер рушились по непонятной причине.

Сам придумал. - А кто же еще! - ответил тот с гордостью.  - Хочу его запатентовать. - Как торговую марку? - Беккер смотрел на него изумленно. Парень был озадачен.

 Твое сокровище в беде, коммандер, - пробормотал.  - Не веришь моей интуиции. Так я тебе докажу.

В голосе Беккера слышались извиняющиеся нотки: - Простите, но это определенно осмысленные слова. Они выгравированы очень близко одно к другому и на первый взгляд кажутся произвольным набором букв, но если присмотреться повнимательнее, то… становится ясно, что надпись сделана по-латыни. - Вы что, морочите нам голову? - взорвался Джабба.

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4 Response
  1. Nick K.

    Describe essential parts of boiler and their functions. ➢ List out design criteria of various pressure parts and furnace, material of construction.

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