boiler tube Articles

  • Insitu analysis of ammonia slip and water vapor using a tunable diode laser for SCR/SNCR optimization and boiler tube surveillance in power plants

    ABSTRACT Environmental Regulations driven by the 1990 Clean Air Act require Power Plants to reduce NOx emissions. SCR's and SNCR's reduce NOx emission by injecting ammonia into the combustion flue gas. which ideally reacts with the NOx to form H?0 and Nj. The efficiency of the SCR SNCR is determined by monitoring the outlet for excess NH3. referred to as NH3 slip. The flue gas sample ...

  • Saving waste in the boiler house

    Burner technology has improved greatly in recent years. Older Burners had a series of cams and levers that were calibrated to provide specific amounts of air for a particular rate of firing. Being mechanical items, these wore and sometimes required calibration. They, therefore, had to be regularly serviced and calibrated. Generally, new burners use frequency controlled motors and cams to open air ...


    By EBE Engineering Ltd.

  • How to protect the superheater of industrial boiler

    Superheater is the heating surface that heats the saturated steam into the superheated steam in corresponding pressure.To improve the thermal efficiency of circle of the ...


  • Catalytic boilers with catalytic fluidised bed

    In this paper, conditions of work, special features and problems of boilers with catalytic fluidised bed are described. The specific conditions, when the catalyst layer remains stationary and granular or becomes spouting, are also considered. There are some main zones in the catalytic boilers with fluidised bed, which characterise such boilers and which must exist in them under normal working ...


    By Inderscience Publishers

  • Chemically Inclined: The Case for Clean Boilers

    Boiler cleaning is something most companies don’t want to think about — if boilers are working within operational limits it’s often easier to keep up with smaller preventative maintenance (PM) tasks but put off a total chemical clean ...

  • BTC coatings for trouble-free Boiler Operation

    In April 2014, the CastoLab® Division of Eutectic Canada performed an on-site coating contract for a Steel Mill. The work was performed on a critical section of the Fume Extraction Ducting: a series of water cooled tubes which remove heat from the exhaust fumes exiting the drop box. Conveyed within the ducting is hot ash debris which is corrosive and very abrasive. In this particular job, the ...


    By Castolin Eutectic

  • Pakistan SZS Gas Fired Steam Boiler

    Heavy Oil, Light Oil, Residual Oil, Natural Gas, City Gas, and Blast Furnace Gas can be used as Fuel. The boilers can also be applied to generate electricity at some districts where electricity power is in short. So are a variety of industrial productions, living and remote areas, and oil field. Even they can be used as a power plant boiler startup. SZS series oil & gas boilers are ...


  • Care, management and maintenance of Older boilers - Case study

    Background In May 2000 Babcock & Wilcox Power Generation Group, Inc. (B&W PGG) presented a paper to the International Conference on Life Management and Life Extension of Power Plants entitled: Standard Recommendations for Pressure Part Inspection during a Boiler Life Extension Program (#BR-1701). Three years earlier, B&W PGG published a similar paper for industrial boilers ...


    By Babcock & Wilcox MEGTEC LLC

  • Boiler Film Forming Amines Hydrocarbon Engineering

    A good treatment programme for boiler feed water is crucial to the smooth operation of steam generators. Faulty treatment can cause damage to the plant, with attendant high costs. Traditional treatment programmes have three components: oxygen scavengers, alkalising amines, and phosphate. In a treatment programme based on film forming amines (FFAs), the functions of both oxygen scavenger and ...


    By Kurita

  • Tips of installing the coal fired hot water boiler

    After buying an coal fired hot water boiler as being the heat power, the other thing the enterprise should think about is to install it. As all of those other boilers, the installation work likewise need the customer’s attention. Because the installation quality is directly connected ...


  • Corrosion-Fatigue failures of Riser tube bends - Case study

    Purpose This Plant Service Bulletin is a SAFETY ALERT WARNING thai advises boiler owners and operators of the immediate need to inspect riser and supply tube bends for evidence of corrosion fatigue damage on the inside of these bends and to undertake immediate replacement of damaged tubing. Problem/Hazard Corrosion fatigue damage has been found on the inside ...


    By Babcock & Wilcox MEGTEC LLC

  • UP Boiler mix stud plate cracking - Case study

    Purpose Advise customers to inspect for cracks in wall tubes in the furnace enclosure mix areas of UP boilers that were designed prior to 1973. Several recent inspections have revealed stud plate deterioration and cracking, which has propagated into the tube wall, typically at the termination of the stud plate or membrane weld. Problem Figure 1 shows the "H" ...


    By Babcock & Wilcox MEGTEC LLC

  • Application notes: The Sievers InnovOx TOC analyzer: boiler water monitoring

    Background A boiler system is a semi-closed loop system in which water is heated and converted into steam to power a generator. The steam is then allowed to form a condensate and the process is repeated. Boiler water chemistry directly impacts boiler efficiency and fuel use. Improper water treatment allows scale formation and corrosion. Boiler scale and deposits form when impurities ...


    By GE Analytical Instruments

  • High purity boiler make-up water for esso thailand

    The Facility The Esso refinery is located in Sriracha, Thailand approximately 50 miles south of Bangkok. Due to increased refinery demands, Esso embarked on a facility expansion to more than double the refinery’s production capacity. The Problem The expansion plan required additional high purity water to be used for boiler make-up. With the existing ...

  • What Is a Boiler Feed Water Treatment System and How Does It Work?

    For industrial companies using a boiler for its facility, some type of boiler feed water treatment system is usually necessary to ensure an efficient process and quality steam generation. The most appropriate boiler feed water treatment system will help the facility avoid costly plant downtime, expensive maintenance fees, and boiler failure as a result of scaling, ...


    By SAMCO Technologies, Inc.

  • 1×30MW and 2×15MW power plant boilers, which will be much better

    1×30MW, 2×15MW power plants boiler which will be much better According to our discussion in some forum with some experts and our real experiences, it is founded that two sets of 15MW is much more better than the former in many aspects: I. One boiler can operate normally if the fuel is not enough for two boilers. However, for one sets 30MW boiler, we have to lower the working rate on ...


  • Tuning Your Boiler for Fuel Savings – Out with the Old in with the New Technology

    The USA has about 811,000 MW of installed generation and over 52% of our Electric power is produced by aging coal fired power plants. The average utility boiler furnace was designed about 30-40 years ago. According to DOE records, the average boiler in 1974 was fired with 80% bituminous coal. Now, western PRB coal is much more prevalent and represents about 50% of total coal ...

  • Common Boiler Feed Water Treatment Issues and How to Avoid Them

    When treating boiler feed water (the combination of boiler makeup and condensate return water), several issues can arise that cause boiler scaling, corrosion, fouling, and system failure. Below, we break down the most common boiler feed water issues and how to avoid them to help ensure system efficiency and operational safety. While treating boiler feed water is extremely ...


    By SAMCO Technologies, Inc.

  • Scaling vs. Corrosion: Why It Matters for Your Boiler Feedwater System

    When using boilers for an industrial plant and process, one of the most important things to implement is the appropriate treatment of the boiler feedwater before it has a chance to scale and corrode equipment. Before beginning any process with a boiler, understanding the makeup and return water chemistry/characteristics, the manufacturer’s requirements for the boiler (what pressure it ...


    By SAMCO Technologies, Inc.

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