US1931948A Boiler with reheater Google Patents


US1931948A Boiler with reheater Google Patents

US1931948A Boiler with reheater Google Patents
  • Offshore price : $8,999.00 - $100,000.00
  • Minimum order quantity : 1 set
  • Supply Capacity : 10 units/month
  • Manufacturer/Brand : TOBO BOILER
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

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  • Everything You Need To Know About Silica In Your Water

    colloidal silica at high pressure and temperature gets converted into reactive silica due to which the silica level in the Boiler drum increases. In order to avoid scaling of silica on the turbine blades, lower level of total silica has to be maintained in the boiler drum and this calls for increase in blowdown from normal from 1% to 2%, due to which the boiler feed water capacity has to be …Get Price

  • Common Boiler Feedwater Treatment Issues and How to Avoid …

    Sep 23, 2016 · 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 …Get Price

  • Question: How Do You Treat Silica In Water - SeniorCare2Share

    Colloidal silica cannot be removed using ion-exchange methods. Does FIJI Water contain silica? FIJI Water is natural artesian water that has the minerals silica, magnesium, and calcium, which contribute to FIJI's soft mouth-feel and smooth taste. After silica enters the boiler water, the usual corrective action is to increase boiler Get Price

  • How Do You Remove Silica from Industrial Water and …

    Jul 26, 2021 · Colloidal Silica. Colloidal silica is much finer than granular silica. Because of their fineness, the particles stay dispersed in the boiler water without precipitating out, forming something called a colloid. These particles are harder to remove, especially if the water contains other suspended particles. Below are some of the best ways to treat colloidal silicaGet Price

  • Water Handbook - Water Sources, Impurities and Chemistry

    High boiler water silica and low feedwater values are often a first sign that colloidal silica is present in the makeup. One method of identifying colloidal silica problems is the use of atomic emission or absorption to measure feedwater …Get Price

  • Removing Silica from Industrial Water | Chardon Labs

    Oct 01, 2018 · A colloidal silica slip will significantly increase the SiO2 levels in the boiler water, well above typical values of 2-20 ppm (for pressures > 900 …Get Price

  • Boiler Feed Water Treatment for Industrial Boilers and

    Nov 01, 2004 · Silicate and colloidal deposits decrease boiler efficiency and also result in premature failure of turbines. Ultrafiltration can remove greater than 99% of colloidal silica, as well as precipitated iron and aluminum. The reduction in particulate matter, suspended solids and total organic carbon (TOC) also enhance turbine and boiler efficiency.Get Price

  • Why is the pH in my boiler water high

    All of the non-reactive, or colloidal, silica is rendered soluble above 600 psig and hence all of the silica in the boiler is, theoretically, capable of being vaporized. Boiler water will always test positive for silica because of the small reactive SiO2 leakage by the demin plant.Get Price

  • Colloidal Silica - Treatment and Removal

    How many types of silica are present in boiler water? - QuoraGet Price

  • What is the definition of active and non-active Silica in

    Unreactive silica is polymerized or colloidal silica, acting more like a solid than a dissolved ion. Difficult to detect, but may be present when boiler feedwater shows none, but boiler water Get Price

  • Continuous electrodeionization for boiler feed water

    purifying boiler feed water has been to use chemically regenerated ion-exchange deionization. This is a widely it offers better removal of colloidal silica and dissolvedGet Price

  • Silica removal from water - Finishing

    Aug 19, 2009 · Colloidal silica will show up very little even in the chemical test, as it is a polymer and quite unreactive. Once it goes into your boiler, it is hydrolysed under high temperature and high pH of the boiler water and appears as if by magic, as suddenly it is monomeric and able to react with the test method.Get Price

  • How To Maintain Silica In Boiler

    Dec 12, 2021 · Prediction Of Silica Carry Over And Solubility In Steam Of Boilers Using Simple Correlation Sciencedirect Silica Scaling In Boilers CollGet Price

  • WATER IMPURITIES AND THEIR CLASSIFICATION - …

    Jul 12, 2017 · Silica can exist in various form as simple silicates or as a complex polymeric material. Colloidal silica is rarely present in Bore well water but is commonly present in surface water. Silica if not removed can cause deposits on boiler, cooling tower, turbines and other industrial equipments which are difficult to remove. Gaseous impuritiesGet Price

  • Steam Purity - boiler-wrba.org

    •SILICA -- coming thru the makeup water to the feedwater that may be used for attemperation can cause problems in the turbine area. Especially if colloidal silica is present in the makeup water. •Recommend maintaining close limits of allowable silica in the boiler water to keep sat steam silica < 20 ppb. Record all values dailyGet Price

  • How many types of silica are present in boiler water? - …

    Colloidal silica slips through the demineralisation (DM) plant to get converted into reactive silica at high temperature and pressure leading to severe problems in boilers. When reverse osmosis (RO) plants are used in water treatment, colloidal silica and associated impurities can foul RO membranes leading to drop in productivity.Get Price

  • Boiler feed water - sk4education.com

    Topic – 1 Boiler feed water 1 .Definition: The setup used to produce steam in industries is known as 'Boiler'. Water is fed to 2.Removes ionic, non-ionic and colloidal silica impurities, which can not be removed by demineralization method. 3. Low capital cost. 4. Simple operational procedure.Get Price

  • Silica Scaling in Boilers - Lenntech

    Sep 10, 2020 · The other form of silica in the water is known as "Colloidal Silica". This form is a polymeric form of silica where the particles are ultra-fine and cannot be filtered out of the water using normal filtration techniques. Colloidal silica cannot be removed using ion-exchange methods. Evidence of Silica In The HomeGet Price

  • Why is it necessary to remove Silica from Industrial Water

    Aug 03, 2021 · Silica removal is installed in a variety of industrial applications, this includes raw water treatment, cooling tower makeup water, boiler feed treatment, and blowdown water treatment. Silica can exist in different forms of granules, colloids, or reactive ions, and choosing the right silica removal technology relies on which physical forms of Get Price

  • Does RO remove silica? - AskingLot.com

    May 12, 2020 · What is colloidal silica in boiler water? Colloidal silica is non-ionic, and is typically found in surface waters. Colloidal silica slips through the demineralisation (DM) plant to get converted into reactive silica at high temperature and pressure leading to …Get Price

  • Overlooked Area - Altret

    Silica Colloidal Silica in Power Plant Water Chemistry Silica Boiler Feed Water: Few Recommended Actions or Guidelines to Prevent Silica Deposition & to Maintain Correct Water Chemistry Parameters As we all must aware that prevention is better than cured. Here are some guidelines to prevent Power plant turbine & boiler free fromGet Price

  • changzhou boiler equipment co ltd - China Boiler Manufacturer

    Company Profile - DEVOTION(CHANGZHOU) BOILER . Devotion (Changzhou) Boiler Co., Ltd. was established in 1970. It is located in the south of the Yangtze River and the shore of the Taihu Lake, in the center of the Yangtze River Delta., Specializing in R&D, production and sales of industrial boilers and pressure vessels.Get Price

  • How To Maintain Silica In Boiler

    Dec 12, 2021 · Prediction Of Silica Carry Over And Solubility In Steam Of Boilers Using Simple Correlation Sciencedirect Silica Scaling In Boilers CollGet Price

  • US2391895A - Method of conditioning boiler water - Google

    water boiler colloidal heavy metal silica Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US435223A Inventor Lewis O GundersonGet Price

  • Water Handbook - Water Sources, Impurities and Chemistry

    High boiler water silica and low feedwater values are often a first sign that colloidal silica is present in the makeup. One method of identifying colloidal silica problems is the use of atomic emission or absorption to measure feedwater silica. This method, unlike the molybdate chemistry, measures total silica irrespective of the degree of Get Price

  • Boiler Feedwater Treatment (Part II): Water Treatment

    This means that for every 100 pounds of water fed to the boiler about 10 pounds of boiler water must be blown down to keep the dissolved solids from exceeding 500 ppm. Total dissolved solids is not the only limiting factor in determining blowdown, other considerations include suspended solids, alkalinity, silica and iron.Get Price

  • Boiler Feed Water Treatment for Industrial Boilers and

    Nov 01, 2004 · Silicate and colloidal deposits decrease boiler efficiency and also result in premature failure of turbines. Ultrafiltration can remove greater than 99% of colloidal silica, as well as precipitated iron and aluminum. The reduction in particulate matter, suspended solids and total organic carbon (TOC) also enhance turbine and boiler efficiency.Get Price

  • THE REMOVAL OF SILICA FROM WATER FOR BOILER FEED …

    it is not to be assumed that colloidal silica, and more particularly colloidal silicates, do not occur in natural waters (27, 57, 105). Such occurrence undoubtedly exists, but it is reasonably certain that complete clarification will remove this form of siliceous material. A paper to be presented before the meeting of the Joint Boiler Feed WaterGet Price

  • (PDF) Control of Deposition Risks in High-Silica Boiler

    silica boiler water is a challenging task that has not yet been fully addressed. Colloidal Silica Particles: Effect of Particle Size, Langmuir 2005, 21, 5761-5769.Get Price

  • What is the difference between colloidal silica and

    Answer (1 of 2): In deionisation of water as boiler feed, for power generation, it is imperative to remove both the types of silica. Colloidal silica as the name suggests, is polymerised silica in an insoluble colloidal form without a charge and hence not …Get Price

  • Ultrafiltration Reduces Boiler Blowdown at India's Largest

    the source of the problem was colloidal silica in the form of fine mud in the boiler feed water. The Challenge To develop an energy-efficient system to effectively remove the colloidal silica in feed water, reducing blowdown operations and conserving water. Solution "We determined that membrane ultrafiltration (UF) was theGet Price

  • Indian BOE Coaching Services - allindustrialtraining.com

    silica. Mention two most common process of removal reducing the colloidal silica from Boiler feed water. Answer : Fundamental difference between Colloidal and Reactive silica : The "Total Silica" content of a water is composed of "Reactive Silica" and "Unreactive Silica(Colloidal Silica)".Get Price

  • water treatment – precipating silica - Degremont®

    This colloidal silica is not ionised and, therefore, is not properly eliminated by traditional systems used in the treatment of boiler water (clarification + ion exchange) (see chapter treatment and conditioning of industrial water) and …Get Price

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