DISTRIBUTION SYSTEM Super High Pressure (SHP) Steam High Pressure (HP) Steam Medium Pressure Desuperheated (MPD) Steam Medium Pressure Desuperheated (MPD) Steam Low Pressure (LP) Steam Low Pressure Desuperheated (LPD) Steam Letdown Stations Steam Boilers Power Generation System Blowdown and Flash Drums CONDENSATE TREATMENT AND RECOVERY SYSTEMS Deaerators PCC NCC MP Condensate HP Condensate Condensate Treatment DESALINATED WATER
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cocks‚ valves and other fittings used for indicating water level are clear and are in good working order. Methods used to ensure boiler is in working order. Before a new boiler is initially fired‚ it should be given a complete and thorough inspection on both the fire side and water side. [pic] [pic] [pic] [pic] External examination of the boiler should include the visual inspection of the outer surfaces during operation as stated earlier. Other external points that should
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conditioning and phosphate conditioning of boiler water with respect to the principles involved‚ advantages and limitations. 10. Establish the relation between mg/l and ppm. 11. Is boiled water 100% safe for drinking. Why? 12. Ca(HCO3)2 causes scale formation in low pressure boilers and not in high pressure boilers. Why? 13. What is priming? How is it caused? What are its disadvantages? 14. Why silica‚ oil and dissolved gases should not be present in boiler feed water. 15. What may be the consequences
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TECHNICAL PRESENTATION TECHNICAL CETHAR LIMITED Types of boilers Sub critical boilers Drum type natural circulation boilers Drum type controlled circulation boilers Once through boilers Super critical boilers Once through boilers CETHAR LIMITED Evaporator systems CETHAR LIMITED Design Criteria Description OT Super critical Sub-Critical Furnace sizing Decided by Fuel and Gas side parameters Same Evaporator Supercritical fluid; Variable evaporation
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BOILER OPERATION. Description of boiler operation SOFTENER: Function of softener is softening the hard water. This is because water supplied is hard water since it contains a lot of calcium‚ magnesium or other minerals. Water hardness Mg/L Soft water ≤ 17.1 mg/L Grey zone between soft and slightly hard water 17.1-60 mg/L Moderately hard 60-120 mg/L hard water 120 - 180 mg/L Very hard water ≥180 mg/L Hard water causes two problems such as 1. Dissolved calcium and magnesium
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Aim: To study the construction and working of various boiler mountings and accessories. Theory: A boiler is defined as a closed vessel in which steam is produced from water by combustion of fuel. Also defined as “A combination of apparatus for producing‚ furnishing‚ or recovering heat together with the apparatus for transporting the heat so made available to the fluid being heated and vaporized.” Classification of Boilers : The boilers may be classified according to following criteria: 1.
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Boiler Basics Design and operation A boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam. The hot water or steam under pressure is then usable for transferring the heat for the steam requirements of process industries or for power generation. Combustion boilers are designed to use the chemical energy in fuel to raise the energy content of water so that it can be used for heating and power applications. Many fossil
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TOPICS TO BE COVERED Boiler flashing up procedure Procedure to commission new boilers Procedure of raising steam from cold Soot Blowing Procedure Actions to be taken during Fire and explosion in boilers Boiler emergency conditions and actions to be taken OBJECTIVE To contribute for the first lecturer’s assessment (LA) for the engineering knowledge steam subject. To make sure that the course is more interesting and not only one sided. To ensure everybody understands
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circulation boiler was first introduced by La-Mont in the year 1925 which is used in Europe and America. This is a modern high pressure boiler (water tube type steam boilers) working on forced circulation system. Working principle of La Mont Boiler The image shows the flow circuit of La Mont Boiler. I will explain working of each and every part in La Mont boiler one by one. Steam separator drum The la Mont boiler consists of a steam separator drum which is placed wholly outside the boiler setting
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Lignite fired Boiler structural features Lignite fired boiler is of single steam drum‚ suspension combustion mainly to stoker firing as a supplement‚ natural circulation and water cooled vibration stoker. Boiler proper‚ except economizer and tubular air preheater‚ is complete suspension and membrane wall construction. Meanwhile‚ validity of various biofuel is also taken into consideration. Lignite fired boiler is of outdoor arrangement and composed of the following five parts: furnace‚ primary
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