Afbc atmospheric fluidized bed combustion boiler cold start up procedure. Boiler front piping consists of flow control valves, trip valves, manual valves, flexible hoses. The technology is proven and is in use for nearly a century. Energy performance assessment of boilers bureau of energy efficiency 1 1. Valves before and after feed control valve in feed line. Grid nozzles for primary air used to fluidize the bed material inside the furnace can be seen. The proposed method is an alternative to the conventional.
Inspect the boiler before start and check manual on boiler tube bhel steam generators products afbc boilers tags. This material provides the basic of design, operation and maintenance so that you can use this as guide line to operation, to inspect your boiler. Take advantage of the most economical way to improve efficiency and operating flexibility, get substantial. Operating procedures should be designed so as to reduce manual operations and introduce interlocks to stop the operation sequence in case of improper conditions. Afbc and cfbc boilers circulating fluidised bed combustion operation manuals presentations. Ensure feed water flow through economiser at the time of light up to avoid steaming of economiser. Title type boiler operator engineer exam drawing material pdf koh saponification lab procedure pdf. Deterioration of fuel quality and water quality also leads to poor performance of boiler. The internal inspection is to make certain that it is free from scale, oil. Why choose zg as fire tube boiler checklist manufacturer. Start the ld oil pump and maintain the oil pressure between 6. Benefits include high combustion efficiency, high reliability and availability, low maintenance cost, reduced erosion, enormous fuel flexibility and low emission. However, in the application of this operation instruction to preoperation, operation and maintenance of equipment, dbc assumes no responsibility for any failure.
Cfbc boiler startup and shutdown free download as powerpoint presentation. Cethar afbc boiler manual dire searching for a ebook cethar afbc boiler manual in maintain drum level at normal recommended level. Consult factory representative for recommended near boiler piping diagrams. Lighting instructions in the boiler manual for the correct procedure. Performance of the boiler, like efficiency and evaporation ratio reduces with time, due to poor combustion, heat transfer fouling and poor operation and maintenance. Conventional boilers for power generation can use only fossil fuels, such as highgrade coal, oil, and gas. The majority of these incidents are attributed to malfunctioning lowwater cutoffs, operator error, poor maintenance, or corrosion. Operation of this equipment should not be considered free from all. Circulating fluidised bed combustion boiler cfbc enmas. Developments in circulating fluidised bed combustion. In reheater system we use hot cyclone to improve the efficiency of boiler.
Boilers that utilize fluidbed combustion burn fuels at lower temperatures are. Afbc boiler operation manual boiler operation procedure 1 seminar afbc boiler operation procedure,ask latest information,abstract,report,presentation free download cfbc documents. Boiler before closing up and filling the boiler, it must be inspected both internally and externally. Dear all, please tell me what is different between afbc boiler amp cfbc boiler. The cfbc boiler has more advantages than afbc boiler. The cfbc gained popularity mainly as a coalfired boiler. It consists of cfbc boiler of 88kgcm2 operating pressure and 510 0 c superheated steam temp. Cfbc boilers free download as powerpoint presentation. The flue must be as large or larger than the diameter of the collar opening. A modern concept in steam generators, these boilers are designed and manufactured for a wide range up to about 550 tph capacity. Afbc boiler is a very developing technology now these days this technology is widely used in the industrial boiler for the purpose of efficient and clean burning of coal and other fuel for steam generation. Handle high sulphur, high ash and high moisture fuels, petcoke, sludge, washery rejects, lignite, biomass.
Each year, hundreds of accidents are reported involving steam and hotwater heating boilers in schools, businesses, public buildings, and other facilities. At the bottom of the boiler furnace there is a bed of inert material. Circulating fluidizedbed combustion technology cfbc. Cfbc boiler manufacturer, 200mw steam boiler faq about 200mw steam boiler 1. If it is not possible to accomplish this, the hydro test may be conducted twice, once for drainable portion and another full hydro cfb including nondrainable portion. What is the difference between an afbc and cfbc boiler. Boiler systems are major inancial investments, yet the methods for protecting these invest. Describe the boiler and steam header warmup procedures. Describe the steps that must be taken to prepare a boiler for startup. Advanced control of an industrial circulating fluidized. This article gives a brief description of the working of a cfb boiler. Ijreat international journal of research in engineering. Cfbc boiler s,ebooks and documents of cfbc boiler operation manual thermax afbc boilers, measure air box pressure p1 mm of wc 3. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Operating experience of low grade fuels in circulating fluidised bed. Proper operating and maintenance procedures must be followed at all times to ensure a high degree of protection and safety. Efficiency improvement is achieved by calculating of different reading by excel sheet analysis data are taken from measurement of many parameter of cfbc boiler. Learning objectives here is what you will be able to do when you complete each objective. Solids separator hot cyclone plate type plate type uncooled hot cyclones with loop seal assembly are adopted in enmas gb cfbc boilers. Performance guarantee test assessment of cfbc boiler. Afbc and cfbc boilers operation manuals boilersinfo. Proper boiler venting is critical for operation of your boiler.
Correct near boiler piping is critical to the proper operation of the boiler. Afbc atmospheric bubbling fluidized bed combustion cfbc circulating fluidized bed combustion long answer. The boiler with its simplified, costeffective and efficient design provides improved performance. Browse and download afbc boiler operation procedure. How a boiler, fan coil unit, air handling unit and pump work together hvac heating system duration. As well, old boilers must be dried out and new boilers, boiled out. Written operation sequence and checklists, with all manual and automatic function, should be provided to guide the operator 11. Superheated steam from the boiler used for production of paper as well as for power generation the boiler is a new kind mixed fuel boiler with high efficiency and low pollution which adopts circulating fluidized bed combustion technology with. Pdf optimization of bed material consumption in a cfbc boiler. We have over 70 years experience of industrial steam boiler and autoclave,and we have a professional installation and aftersales staff for products. Advanced control of an industrial circulating fluidized bed boiler using fuzzy logic erkki karppanen academic dissertation to be presented with the assent of the faculty of technology, university of oulu, for public discussion in raahensali auditorium l 10, linnanmaa, on february 4th, 2000, at 12 noon. Circulating fluidized bed cfb combustion boilers gives the flexibility for combustion of a wide range of coals and alternative fuel sources.
Standard operating procedure for renewal of certificate of boilers 1 online application for renewal of certificate along with formb no. Take advantage of the most economical way to improve efficiency and operating. With warming water temperatures will produce refractory materials that will. Start the oight oil pump and maintain the oil pressure between 6. Boilers are fuelburning appliances that produce either hot water or steam that gets circulated through piping for heating or process uses. Photo 1 shows an overview of a cfbc boiler facility. All this without compromising efficiency and with reduced emissions. A small presentation on visit to china for relocation of cfbc and pf boilers. On boilers equipped with automatic electrically ignited pilots, follow the procedures described in lighting instructions and test the controls for proper operation. It is important to make sure the main power switch and all power to the boiler is off prior to removing the cover of the main control box.
It is important to keep the vent pressure at a negative and it is even more important that the pressure is. Boiler use mainly coal as fuel, there are so many losses in boiler system which decrease performance of boiler and increase operation cost. 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 flame supervisory system must be tested to assure that it will shut off the boiler if the water level drops below their sensing level. Key benefits are fuel flexibility, reduced emission and lower bed temperature. This section is all about afbc and cfbc boilers circulating fluidised bed combustion operation manuals. Figure 3 a categorisation of fuels regarding to the challenges on cfbc boiler design. Circulating fluidised bed combustion boiler cfbc capacities.
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