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 ...

  • 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

  • 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

  • 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

  • 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 ...

  • 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

  • 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.

  • 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.

  • 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.

  • Steam-Cooled spacer tube related cracking of Secondary superheater outlet headers - Case study

    Purpose lb advise owners and operators of B&W drum and once-through coal-fired design boilers, equipped with secondary superheater steam-cooled spacer tubes, to inspect the secondary superheater outlet header internal surfaces for cracks in the vicinity of the steam-cooled spacer tube entries. The steam-eooled spacer tube design (see Figure 1) is used on many units to maintain ...


    By Babcock & Wilcox MEGTEC LLC

  • 5 reasons water treatment (boiler feed/ cooling tower) is absolutely benefit for manufacturing units

    Water treatment is highly essential for modern day production units. Everyone is aware of their relevance from environmental point of views. But, water treatment is equally effective in terms of optimizing the industry processing, safety and minimizing the expense. Exclusive ways against the most stubborn impurities: Water Treatment (Boiler Feed/ Cooler ...

  • Reclaimed Municipal or Industrial Wastewater for Power Plant Cooling & Boiler Feed Make-Up Water

    For centuries, water was considered a commodity product and used with little or no restriction. In today’s modern society, water is now being considered a precious resource and considerable effort is put into protecting, recycling, and restricting its use freely. State and Federal agencies have put in place guidelines and regulations restricting its use, especially for industrial use. ...

  • Case study - Ljusdal Energi, Sweden

    At Ljusdal Energy, a shell & tube-condenser is installed. The technique takes a bit more space and gives almost the same performance as a lamella type. However, the customer desired tube technology. The condenser will handle the flue gases of two boilers that can be in operation independently. Boiler: 2×10 MW Fuel: Biofuels ...


    By Envibat AB

  • Chemical cleaning guide - Case study

    Purpose This plant service bulletin provides guidelines to owners and operators on when to chemically clean boilers and steam generating equipment. Background Though current standard water treatment practices may be followed, the internal surfaces of boiler waterside components (including supply tubes, headers and drums) can accumulate deposits over a period ...


    By Babcock & Wilcox MEGTEC LLC

  • Cathay Murni Garments

    Fire Tube Steam Boiler The Site: Hot water supply for washing and steam for ironing were supplied by a 20-year-old steam boiler. The boiler was kept in good condition by adding water softener chemicals every other day. The boiler was cleaned annually. Underground water with hardness 200ppm was used for the boiler. Blow down was done once a day for 20 seconds. ...

  • Gatineau Hospital, Gatineau, Quebec, Canada

    Commercial Boiler Application Thermal Energy installed FLU-ACE system to recover 5.5 mmBTU/h of waste heat from the flue gases emanating from three Volcano water tube boilers. The single 16 ft. high FLU-ACE tower replaced three independent boiler steel stacks. The installation is unique in several ways, including the very high temperature of the flue gases (up to 650 °F) processed by the ...

  • Cleaning effect of Cetamine V217 in municipal housing complex treatment - Case Study

    Cleaning effect of Cetamine treatment 1. KEYWORDS Cetamine, boiler, heating system, cleaning, municipal housing 2. BACKGROUND This case study is based on an application in a municipal housing complex. The steam is used to heating buildings on a campus. The boilers got very little attention from the onsite staff. The softener was ...


    By Kurita

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