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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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  • [Solved] A cylindrical boiler 1.5 m diameter and made up

    Dec 13, 2020 · A cylindrical boiler 1.5 m diameter and made up of 10 mm thick plate is subjected to a steam pressure of 2 N / mm 2. The hoop tension and longitudinal stresses will be The hoop tension and longitudinal stresses will beGet Price

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    The internal surfaces with water on shell side. of a boiler in contact with water and steam must be kept clean All three boilers of each Ammonia plant stream are and free of deposits to assure efficient heat transfer in the integrate with risers and down comers with single steam generation of …Get Price

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    4. Describe the tools and standard methods used to attach boiler tubes to tubesheets, headers and drums. 5. Describe the need for, and application of boiler stays. 6. Describe boiler inspection and access openings. 7. Describe boiler drum connections. 8. List or identify the different types of internal firetube furnace designs. 9.Get Price

  • 4th Class Power Engineering Unit B5: Energy - Quizlet

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    As steam is produced from the boiler water and drawn off for use, most of the impurities in the water remain behind. These consist of dissolved solids and some suspended solids, left over from the external water treatment and from chemicals injected into the boiler as part of internal water treatment. The water in the boilerGet Price

  • High-Pressure Steam Cycle and Boiler Water Treatment

    ULTRAMARINESM HP BWT Program • Drew Marine pioneered the "modified phosphate-pH treatment" – Utilizes disodium orthophosphate and caustic so that no "free caustic" is generated in the boiler water – Sodium to phosphate ratio is approximately 2.75:1 and provides margin of safety for good control of the program – Went into effect in the marine industry in the 1960's …Get Price

  • Horizontal boilers make 700°C steam economic - Modern

    Such boilers will have a height of little more than 30 m. Typical turbine plinth levels today are around 16 m high. But with the new horizontal furnace there is the possibility of raising the turbine floor level to the boiler main steam outlet pipe level, ie to about about 30 m above datum, to minimise superheated steam pipe length and complexity.Get Price

  • Internal Feedwater Treatment and Testing Methods

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  • Low Pressure Boilers Steingress Flashcards and Study Sets

    Low Pressure Boilers: Chapter 2. Safety Valve. Chattering. Safety Valve Capacity. Area of the valve disc. An automatic, full-opening, pop-action valve, opened by overpr…. The rapid opening and closing of the safety valve. The amount of steam, in pounds per hour, that the safety valve…. Area = 0.7854 * Diameter Squared.Get Price

  • Boiler Preparation, Start-Up and Shutdown

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  • (PDF) Selection and Analysis of Material for Boiler Pipes

    The basic characteristics of the screened boiler are steam production (80 t/h ), pressure at the super - heater exit (38 bar ), steam. temperature (450 ºC), feeding water temperature (130 ºC Get Price

  • Boiler – Fundamentals and Best Practices

    Steam Production From steam tables we can see that the total heat of steam does not vary a great deal as the boiler pressure increase The boiling point (b.p.) increases as the pressure increases Thus the sensible heat increases as the pressure increases, and the latent heat decreases Boiler pressures are expressed in psia, psig, bar, kg/cm2 Get Price

  • Steam Flashcards - Quizlet

    A boiler is subjected to an internal steam pressure of 2 N/mm2. The thickness of boiler plate is 2.0 cm and permissible tensile stress is 120 N/mm2. Find out the maximum diameter, when efficiency of longitudinal joint is 90% and circumference joint is 40%.(16 Marks) 3.Get Price

  • Water Handbook - Boiler System Failures | SUEZ

    Chapter 14 - Boiler System Failures. Deaerator Cracking. Feedwater Line Erosion. Economizer Tubes. Failures Due to Overheating. Failures Due to Corrosion. Successful, reliable operation of steam generation equipment requires the application of the best available methods to prevent scale and corrosion.Get Price

  • (PDF) CE6306 qb | Sivaraman Lucky - Academia.edu

    High-Pressure Steam Cycle and Boiler Water TreatmentGet Price

  • BASIC WATER TREATMENT OF STEAM BOILERS

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  • Chapter 14 Boilers - Pearson

    292 Chapter 14 Stack—an opening at the top of the boiler that is used to remove flue gas, p. 297. Steam drum—the top drum of a boiler where all of the generated steam is collected before entering the distribution system, p. 293. Steam trap—a device used to remove condensate or liquid from steam systems, p. 294. Superheated steam—steam that has been heated to a very …Get Price

  • ***3B1 Chapter 10 Internal H2O Treatment for Boilers

    The steam leaves the void and is replaced by water and this continuous process results in a high concentration of caustic beneath the scale. The caustic dissolves the magnetite layer. With the protective layer gone, the boiler water reacts with the boiler metal to restore the layer, taking iron from the metal to do soGet Price

  • Boilers | Boiler | Steam - Scribd

    This type of boilers came up as a solution to the problem of explosion faced in fire tube boilers when the pressure and steam generation capacity were increased. In such boilers the shell behaved as heated pressure vessel subjected to internal pressure which set up tensile stresses (hoop stress) in walls.Get Price

  • Week 13 Chapter 10 Combined Power Cycles

    process in the boiler takes place at relatively low temperatures. • Heat is transferred to the working fluid during process 2-2 at a relatively low temperature. This lowers the average heat-addition temperature and thus the cycle efficiency. • In steam power plants, steam is extracted from the turbine at various points. ThisGet Price

  • Boiler Preparation, Start-Up and Shutdown

    the boiler itself, the feedwater system, and the fuel and draft systems. As well, old boilers must be dried out and new boilers, boiled out. Boiler Before closing up and filling the boiler, it must be inspected both internally and externally. The internal inspection is to make certain that it …Get Price

  • Important Questions and Answers: Water Technology

    ignition, bringing the boiler up to normal operating conditions, and preparing and pressurizing the steam headers. Ignition Although boilers have many different specific ignition systems, they all follow the same basic sequence of steps: 1. Pre-purge of the furnace. 2. Reduction of air flow for stable ignition. 3. Pilot burner ignition 4.Get Price

  • Measure and optimize utility steam distribution - ISA

    Steam distribution piping transfers steam from a boiler to plant systems. Proper measurement and monitoring solutions accurately measure and optimize steam distribution, including custody transfer. This reduces the risk of water hammer, ensures efficient cooling of superheated steam, and ensures steam dryers and pressure-reducing valves are Get Price

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    Boiler efficiency is a measure of the goodness of the chosen process and equipment to transfer combustion heat to the heat in steam. Boiler efficiency can be defined as the ratio of the useful heat output to the total energy input. (3.1) η = Q abs Q in. where. η is boiler efficiency.Get Price

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  • High-Pressure Steam Cycle and Boiler Water Treatment

    ULTRAMARINESM HP BWT Program • Drew Marine pioneered the "modified phosphate-pH treatment" – Utilizes disodium orthophosphate and caustic so that no "free caustic" is generated in the boiler water – Sodium to phosphate ratio is approximately 2.75:1 and provides margin of safety for good control of the program – Went into effect in the marine industry in the 1960's …Get Price

  • Solved A boiler is subjected to an internal steam press of

    A boiler is subjected to an internal steam press of 3 N/mm2. The thickness of the boiler plate is 1.8 cm and the permissible tensile stress is 120 N/mm2. When efficiency of longitudinal joint is 90% and that of circumferential joint is 40%. 1) Calculate the maximum diameter of the boiler 2) Check whether longitudinal stresses are within permissible limitGet Price

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    boiler water chemistry), steam turbines are extremely reliable. They require controlled thermal transients as the massive casing heats up slowly and differ-ential expansion of the parts must be minimized. 5. Environment: Emissions associated with a steam turbine are dependent on the source of the steam.Get Price

  • A detailed description of the scope of boiler delivery

    BOILER. Boiler model: high pressure – 40 bar/440°C, steam output of 120 MTH. The delivery of one Wellons water-tube boiler is provided for installation directly on the customer's site. Continuous maximum boiler capacity is 120 MTH of 40 bar/440°C steam at the superheater outlet, with a feedwater temperature of 110°C.Get Price

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