The basic working principle of boiler is as follow. Photo 1 shows an overview of a cfbc boiler facility. Fluidized bed boiler an overview sciencedirect topics. Assume a container with an air supply plenum at the bottom, a distributer plate that promotes even air flow through the bed and an upper chamber filled with sand. This chapter is devoted to basic aspects of circulating fluidized bed combustion cfbc. Oct 29, 2016 cfbc stand for circo fluidized bed combustion. Circulating fluidised bed combustion boiler cfbc capacities. Circulating fluidised bed combustion boiler cfbc enmas. At the bottom of the boiler furnace there is a bed of inert material. Cfbc boiler stands for circulating fluidized bed combustion boiler.
Further six 6 nos afbc boilers afbc boiler operation under various stages of. Circulating fluidizedbed combustion technology cfbc. Figure 3 a categorisation of fuels regarding to the challenges on cfbc boiler design. It is partly filled with water and then sealed, after which a fire is started beneath it. Different versions industrial boilers ore developing with gradual change in their design of different parts and to optimize the thermal efficiency, fuel multiplicity and to sustain w. The working principle of cross drum boiler is same as longitudinal drum boiler the feed water is fed to the cross drum through feed water inlet. Both gas and oil fired boilers use controlled combustion of the fuel to heat water. Generally, cfbc consists of a boiler and a hightemperature cyclone. Performance guarantee test, efficiency of cfbc boiler,various heat loses, waste heat. Pdf design theory of circulating fluidized bed boilers. It consists of mainly two drums, one is upper drum called steam drum other is lower drum called mud drum.
Conventional boilers for power generation can use only fossil fuels, such as highgrade coal, oil, and gas. Introduction and working principal of reverse osmosis boiler water analysis and its importance water impurities and their classification water impurities and their harmful effects on boiler filtration process in water treatment sedimentation process in water treatment working principal of mix bed deioniser in d. Afbc boiler, afbc boiler working principle,atmospheric. This boiler is one type of closed device in the shape of a cylindrical. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The basic working principle of boiler is very very simple and easy to.
Why choose zg as afbc boiler working principle manufacturer. In 2010, we bought two sets of 280 ton cfb boiler form zhengzhou boiler co. The intrafurnace gas velocity is as high as 4 to 8 ms. Circulating fluidized bed boiler cfb boiler how does it work and its principle 1. All this without compromising efficiency and with reduced pollution. Fbc fluidized bed combustion is a combustion technology used to burn solid fuels in steam boilers. Working lamont boiler is a forced circulation, internally fired water tube boiler. They are then separated from the gas in a cyclone or beam separator and returned to the bed. Definition of boilersteam 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. By the use waste flue gas parameters to produce electricity as byproduct using a special principle called magneto hydro dynamic mhd principle. A proven concept in steam generators, these stateoftheart systems are designed and manufactured for a. Cfbc is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms. The feedstock, as well as the bed material, has a wide size distribution in cfb boilers. Generally, a steam boiler is a type of closed container, designed with steel for heating the water to generate steam by some energy source like burning of fuel with eventually.
Let us draw a very basic diagram of water tube boiler. Pdf studies on circulating fluidized bed cfb boilers have being conducted at the. The circulating fluidized bed cfb is a developing technology for coal combustion to achieve lower emission of. What is the difference between afbc and cfbc boiler,cfbc. This ensures the best thermal operating efficiency. Cfbc boiler seminar fluidization boiler free 30day. American foreign relations a history volume 2 since 1895 pdf download. Performance guarantee test assessment of cfbc boiler. Handle high sulphur, high ash and high moisture fuels, petcoke, sludge, washery rejects, lignite, biomass. The capacity of the boiler to have steam, as well as water is sufficient. The vapor generated may be delivered at lowpressure for the industrial progression work in sugar industries, cotton mills, and for generating steaming water that can be utilized for heat up fixing at much lowforce. A modern concept in steam generators, these boilers are designed and manufactured for a wide range up to about 550 tph capacity.
This article gives a brief description of the working of a cfb boiler. Circulating fluidised bed combustion boiler cfbc enmas gb. Boiler working animation a boiler or steam generator is a device used to create steam by applying heat energy to water. The cfbc gained popularity mainly as a coalfired boiler. Oct 29, 2017 a boiler can be defined as a closed vessel in which steam is produced from water by combustion of fuel. In the boiler deaerator working principle water is heated close to saturation temperature with a minimum pressure drop and minimum vent. These hot gasses come in contact with water vessel. Boiler or more specifically steam boiler is an essential part of thermal power plant.
We have over 70 years experience of industrial steam boiler and autoclave,and we have a professional installation and aftersales staff for products. What is the working principle of cfbc boiler 20170606 15. Secondary and free board zone in secondary zone the balance of combustion air is. Prabir basu design, operation and maintenance dalhousie. Boilers bureau of energy efficiency 27 syllabus boilers. A proven concept in steam generators, these stateoftheart systems are designed and manufactured for a wide range of upto 550 tph. Presented at national boiler workshop 2015 introduction to cfbc boilers by satyanarayana senapathi, vp anjani steels. Recently, however, cfbc boilers using rdf and woodbased biomass as the fuel have drawn attention. Circulating fluidized bed combustion cfbc pdf free. Circulating fluidized bed combustion boiler thyssenkrupp industries india offers a wide range of worldclass circulating fluidized bed combustion boilers.
All this without compromising efficiency and with reduced emissions. Different versions industrial boilers ore developing with gradual change in their design of different parts and to optimize the thermal efficiency, fuel multiplicity and to sustain with environmental norms, with cost effectiveness for installation operation and maintenance. The boiler is essentially a closed vessel inside which water is stored. The fuel is burn inside the boiler and the water is circulating by a centrifugal pump through evaporator tubes. The boiler is provided with twin refractory cyclones. Steam boiler definition, working principle, types, and. The flow of solvent from dilute solution to a concentrated solution which is separated by a semi permeable membrane is known as osmosis. The fluidized bed boilers have a wide capacity range 0. Steam boiler working principle and types of boiler definition of boiler steam boiler or simply a boiler 1 steam boiler working principle and types of boiler. Solids separator hot cyclone plate type plate type uncooled hot cyclones with loop seal assembly are adopted in enmas gb cfbc boilers. A platen sh secondary is placed inside the combustor. Ppt cfbc boiler drive interlock powerpoint presentation.
The key boiler components involved in this process are the burner, combustion chamber, heat exchanger, and controls. Water tube boiler operation and types of water tube. How about the quality of afbc boiler working principle. The circulating fluidized bed cfb boiler see figure 8 takes the principle of the bubbling bed one step further and with increased fluidization velocity the particles are lifted out of the bed and follow the gas out of the combustion chamber. Cfbc boiler seminar free download as powerpoint presentation. Afbc boiler, afbc boiler working principle,atmospheric fluidised bed combustion. Our industrial steam boiler manufactured strictly according to national and international standard. Apr 01, 2018 the basic working principle of boiler is as follow. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience.
Afbc and cfbc boilers operation manuals boilersinfo. Mar 04, 2020 the working principle of water tube boiler is very interesting and simple. Vice principal, sri krishna college of engineering and technology, coimbatore, tamilnadu, india2. Characteristics of the internally circulating fluidized bed boiler. 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. Then this water comes down through the downcomer pipe and. In 1992, we cooperated with tsinghua university began the innovation of circulating fluidized bed boiler, by now we have made great progress in cfbc boilers and last year our 116mw cfb hot water boiler was listed as the no1 in a high efficient and environmentally. Mar 04, 2020 boiler or more specifically steam boiler is an essential part of thermal power plant. Deaeration is done by spraying the boiler feed water over multiple layers of trays designed to provide large contact area of the liquid surface to pegging steam. Familiarization of thermal power plant with cfbc boiler free download as powerpoint presentation. A boiler is used in many industries such as in steam power generation, in sugar industries, in textile industries for sizing and bleaching etc. Why choose zg as steam boiler working principle pdf manufacturer. In fluidized bed combustion boiler technology when air or gas is passed through an inert bed of solid particles such as sand supported on a fine mesh or grid, the air initially will seek a path of least resistance and pass upward through the sand.
M i r e k, czestochowa university of technology, poland doi. Now they are working well, and i must say, zg boiler gives us very timely and helpful support. Here ash leaving with flue gas is recirculated to combustion zone. Jul 15, 2017 basic working principle of reverse osmosis. A survey on circulating fluidized bed combustion boilers. What is boiler and its working principle engineering.
Steam turbine is a power machine taking overheated steam with certain temperature and pressure as its motive force, and converting the heat energy of steam to mechanical energy of rotor rotation. Circulating fluidized bed cfb boilers is a kind of boilers. A boiler can be defined as a closed vessel in which steam is produced from water by combustion of fuel. A coarse fluidizing medium and char in the flue gas are collected by the hightemperature cyclone and recycled to the boiler. Circulating fluidized bed combustion cfbc pdf free download. Iea clean coal centre operating experience of low grade fuels in circulating. Take advantage of the most economical way to improve efficiency. Types, combustion in boilers, performances evaluation, analysis of losses, feed water treatment, blow down, energy conservation opportunities. Working principle both gas and oil fired boilers use controlled combustion of the fuel to heat water. Circulating fluidized bed cfb combustion boilers gives the flexibility for combustion of a wide range of coals and alternative fuel sources.
Sep 16, 2017 boiler working animation a boiler or steam generator is a device used to create steam by applying heat energy to water. Further six 6 nos afbc boilers afbc boiler operation under various stages of erection and commissioning. The fuels burnt in these boilers include coal, washery rejects, rice husk, bagasse and other agricultural wastes. Pc boiler for 600 mw projects and circulating fluidizedbed combustion cfbc boiler for 300 mw projects. The simple boiler is like a barrel, consisting of a cylindrical steel shell, with the ends closed by flat steel heads. Water tube boiler operation and types of water tube boiler. In 1992, we cooperated with tsinghua university began the innovation of circulating fluidized bed boiler, by now we have made great progress in cfbc boilers and last year our 116mw cfb hot water boiler was listed as the no1 in a high efficient and environmentally friendly boiler promotion list with the efficiency of 91. Key benefits are fuel flexibility, reduced emission and lower bed temperature. Fuel generally coal is burnt in a furnace and hot gasses are produced. Circulating fluidized bed boiler cfb boiler how does it.
Imagine a container which is installed with a semi preamble membrane and containing solution of unequal concentration. Circulating fludize bed combustion cfbc boiler authorstream. Steam boiler working principle and types of boiler. This section is all about afbc and cfbc boilers circulating fluidised bed combustion operation manuals. Although the definitions are somewhat flexible, it can be said that older. The main working principle of a steam boiler is easy. It is partly filled with water and then sealed, after which a. Introduction to cfbc boiler cfbc boiler work on principle of w hen an evenly distributed air or gas is passed upward through a finely divided bed of solid particles such as sand supported on a fine mesh, the particles are undisturbed at low velocity. What is boiler and its working principle engineering insider. The water tube boiler is one type of boiler, and the main function of this boiler is the water in the tube will be heated to generate the vapor. Atmospheric and pressurized fluidised bed boilers design their problems.
We have over 70 years experience of boiler and autoclave, and we boller a professional installation and aftersales staff for products. The key boiler components involved in this process are the. Steam boiler working principle and types of boiler definition of boiler steam boiler or simply a boiler is basically working principle of boiler. Circulating fluidized bed combustion has given boiler and power plant operators a greater flexibility in burning a wide range of coal and other fuels. If a small quantity of air flow through the distributer plate in to the bed, if it will pass through the voids of an immobile mass of sand. Circulating fluidized bed boiler cfb boiler how does it work and its principle. Basic design of circulating fluidized bed boiler 8 february 2012 pichai chaibamrung asset optimization engineerreliability maintenance asset optimization section energy division thai kraft paper industry co. The steam system collects and controls the steam produced in the boiler. Cfbc boiler manufacturer, steam boiler working principle pdf faq about steam boiler working principle pdf 1. The principal low grade resources worldwide that are available in sufficient. The steam boilers are classified into several types based on its requirement. Cfbc boilers this section is all about afbc and cfbc boilers circulating fluidised bed combustion operation manuals. Our atmospheric fluidised bed combustion afbc boiler working principle manufactured strictly according to national and international standard.
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