Phosphate Sodium Boiler Ratios - tobo boiler

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θrion Gas Fired Steam Boiler

Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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Gas(oil) Fired Integrated Hot Water Boiler

Capacity:0.7-14MW

Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.

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H6 Gas Fired Hot Water Boiler

Capacity:0.7-2.8Mw

Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

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T7 Vacuum Hot Water Boilerr

Capacity:2.8-7.0Mw

Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

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Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

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Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

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  • Phosphate Target in Boiler Water - ppm NaOH, if added The

    Monitoring of boiler water phosphate when using PC is necessary for the following reasons: • The sodium-to-phosphate molar ratio determines the control point relative to the pH/PO4 curves (as illustrated in Figure 1-7), and • Acid phosphate corrosion is a concern if the boiler water is operated with low sodium-to- phosphate ratios.Get Price

  • Boiler Water Treatment - HSB

    Hartford Steam Boiler Boiler Water Treatment Phosphate compounds are common additives for boiler water treatment. Phosphate compounds react with any remaining hard water compounds to create a soft sludge that is eliminated through blowdown. Trisodium phosphate is the most common compound for lower pressure boilers. Phosphates alsoGet Price

  • High Sodium/phosphate Ratio In Rg Boilers - Industrial

    Nov 04, 2021 · High Sodium/phosphate Ratio In Rg Boilers - posted in Industrial Professionals: Dear Experts,In our complex we are currently facing higher sodium to phophate ratios problem in all our Boilers.We have an integrated BFW system where interconnected de-aerators which are common for both HP BFW pumps and KP BFW pumps are installed. BFW is supplied to both …Get Price

  • High Sodium/phosphate Ratio In RG Boilers - Chemical

    Apr 25, 1999 · A computer controlled system for controlling the chemistry of boilers operating on coordinated phosphate chemistry is described. The salient features of this system is that it uses a f~ forward system to compute the future state of the system combined with a unique algorithm for precisely controlling both phosphate level and sodium to phosphate molar ratios …Get Price

  • Program determines sodium-to-phosphate ratio in boiler

    Why is phosphate dosing done in a boiler? - QuoraGet Price

  • Water analysis from_intake_well_to_boiler_drum-n

    May 27, 2014 · WHY PHOSPHATE MEASUREMENT REQUIRED This treatment is used to precipitate the hardness constituents of water and provide alkaline pH control, which will reduce boiler corrosion. Maintains the sodium-to- phosphate molar ratio – (2.1 to 2.9) This ratio must be maintained to prevent formation of phosphoric acid (ratio below 2.1) or free sodium Get Price

  • High Sodium/phosphate Ratio In RG Boilers - Chemical

    Oct 26, 2016 · High Sodium/phosphate Ratio In RG Boilers. Said92441322 (Chemical) (OP) 26 Oct 16 11:42. Dear Experts, In our complex we are currently facing higher sodium to phophate ratios problem in all our Boilers. We have an integrated BFW system where interconnected de-aerators which are common for both HP BFW pumps and KP BFW pumps are installed.Get Price

  • Water Handbook -Boiler Deposits: Occurrence And Control | SUEZ

    However, it contributes to deposit buildup on a par with other contaminants. Analyses of typical boiler deposits show that magnesium silicate is present in roughly the same ratio to calcium phosphate as magnesium is to calcium in boiler feedwater. Phosphate/Polymer Control. Phosphate treatment results are improved by organic supplements.Get Price

  • Control of Sodium to Phosphate Ratio in Real Time in a

    May 01, 1992 · Utility chemists usually try to maintain sodium to phosphate ratios within a narrow range 2.3/2.6 to 1. This range provides the best buffering capabilities without exposing the boiler tube metal to acidic or caustic corrosion.Get Price

  • Phosphate Target in Boiler Water - ppm NaOH, if added The

    Monitoring of boiler water phosphate when using PC is necessary for the following reasons: • The sodium-to-phosphate molar ratio determines the control point relative to the pH/PO4 curves (as illustrated in Figure 1-7), and • Acid phosphate corrosion is a concern if the boiler water is operated with low sodium-to- phosphate ratios.Get Price

  • what is the ph of boiler water system - Yahoo Search Results

    Boiler pH Natural water is usually between 6.5 and 7.5 pH. Acidic water is corrosive. Alkalinity is a measure of the bicarbonate (HCO3), carbonate (CO3) and hydroxyl (OH) ions in the water. pH is controlled by either removing water impurities or adding other chemicals to …Get Price

  • Will dosing a boiler with sodium phosphate affect the pH

    Answer: Your original mixture with Na_2HPO_4/Na_3PO_4 will have a much higher pH than simply using Na_2PO_4 alone. The original solution will be buffered at a pH of around 12, whereas the new mixture will naturally form a buffer with water as …Get Price

  • SO2 gas adsorption by modified kaolin clays: Influence of

    The thermal utilization of low-rank coal with high sodium content easily leads to severe fouling and slagging in actual boilers. To alleviate this problem, a combined method of thermal pre Get Price

  • world-biochar-headlines-02-2020Biochar Project|Biochar

    Feb 02, 2020 · Nov 01, 2015 · In the current study, the focus is on making biochar pellets from torrefied sawdust with a biochar yield between 50 and 70 wt. Manufacturers use this common by-product in countless ways: to make particleboard or as a fuel source for boilers, for example. Biochar, the GREEN Charcoal – the new face on plain black charcoal. 6.Get Price

  • Phosphate treatment systems used in boilers [1

    It was the first step on the control of free hydroxide by placing an upper limit upon the alkalinity allowed relative to the phosphate concentration in boilers water as shown in fig. 1. Phosphate Get Price

  • Boiler Water Treatment Chemicals, Feed, and Control

    the calcium phosphate becomes a fluidized sludge capable of being blown down and out of the boiler before the calcium can form a deposit. Example The reaction rate is the first part of the equation and the residual the second part: [ (0.72 x Ca + 1.08 x PO 4/ Feedwater Cycles) ] = ppm of sodium hexametaphosphate in feedwater.Get Price

  • The International Association for the Properties of Water

    Mono-sodium phosphate MSP NaH2PO4 Once-through boiler or HRSG Benson Boiler Boiler in which output steam is generated from input water by complete evaporation. There is no recirculation of boiler water. Oxygenated Treatment OT Combined Water Treatment, CWT Conditioning regime in which ammonia and oxygen are added to the feedwater Phase-transitionGet Price

  • Smith Boilers GV100 Parts4Heating com-TOBO BOILER

    TOBO Boiler Co., Ltd. is a high-tech enterprise integrating research and development, manufacturing and sales of gas hot water boilers, gas steam boilers, oil gas boilers, vacuum hot water boilers and clean combustion technology boilers.Get Price

  • Program determines sodium-to-phosphate ratio in boiler

    Program determines sodium-to-phosphate ratio in boiler Get Price

  • Boiler water treatment - Betz Entec, Inc.

    The treatment is particularly effective where the calcium and magnesium impurities in the boiler water are calcium and magnesium carbonates and silicates and where the water soluble phosphate is any inorganic phosphate which yields orthophosphate ions in boiler water such as disodium phosphate, sodium hexametaphosphate, trisodium phosphate, etc Get Price

  • 5-2 Recovery Boiler Water Treatment

    Phosphate Effect on Boiler Water pH Sodium-To-Phosphate Molar Ratio Blowdown Phosphate, mg/L p H NaOH TSP DSP (MSP) 3 . 0 2 . 6 2 . 4 2. 2 . 1 2 . 0 Summary: What Should You Know? 6Top Chemistry Parameters in Steam/Water Cycle ¾Conductivity µS/cm ¾pH ¾Dissolved Oxygen, ppb O 2 (and Oxygen Scavengers) ¾Hardness, ppm CaCO 3 ¾Phosphate, ppm PO 4Get Price

  • Considerations for High Pressure Boiler Chemical …

    Dec 01, 1995 · Caustic corrosion produces well-defined depressions or gouges, as does phosphate attack at lower sodium-to-phosphate ratios. An example is a 1,300 psi (9 MPa) and 930 F (500 C) boiler. The boiler tubes, made of ASTM A 178 GrC, failed by precipitation of the phosphates used for the chemical treatment of the boiler water, coupled with more Get Price

  • (PDF) Using Of Congruent Phosphate As Equilibrium

    The low pH values of boiler water compared to phosphate residue concentration can be attributed to two factors, first, di-sodium phosphate formed has no effect on boilers pH, and it has no ability to buffer any pollutant may inter the boiler, second, the use of sodium sulphite as oxygen scavenger in this situation will react with oxygen to Get Price

  • US5747342A - Methods and apparatus for monitoring and

    Methods and apparatus for monitoring and controlling pH, phosphate, and sodium to phosphate ratio in boiler systems operating with captive alkalinity chemistry are described. The methods for monitoring and controlling these parameters include the steps of determining the phosphate concentration via FIA, determining the pH, and using these values to determine the sodium to …Get Price

  • US3520813A - Method and composition for controlling boiler

    While the use of the precipitating agent in a molar ratio of 0.1-1.5 :1 with the calcium impurities is preferred, it should be noted that when carbonate is employed, the ratio may be increased to 2:1 or higher without harm, and greater ratios of phosphate may also be used if the formation of magnesium phosphate is a negligible factor, e.g. due Get Price

  • Power plant and calculations: How do you calculate Boiler

    Jul 21, 2020 · Phosphate reacts with calcium and magnesium forms less sticky, loose and non-adherent sludge instead of hard scale. This sludge remains in the boiler water in suspended condition and then, removed from the boiler through blow down Other than TSP, disodium phosphate (Na2HPO4) and monosodium phosphate (NaH2PO4) are used in boiler for dosing.Get Price

  • BASIC WATER TREATMENT OF STEAM BOILERS

    May 02, 2000 · tied up by dispersants and chelants and remain suspended in the boiler water where they can be removed by continuous surface or bottom blow down. Left improperly treated silica and iron both can form harmful deposits. ASME Phosphate Treatment Guidelines (boilers below 600 PSIG) OH-Alkalinity 100-600ppm Phosphate 30-50ppm Silica 200 - (0.25x Get Price

  • Phosphate Continuum (PC) - What Products Do You Need

    Jun 10, 2015 · The Phosphate Continuum control strategy increases the minimum sodium-to-phosphate ratio to 3:1 with a maximum bounded by the TSP + 1 mg/L NaOH line. The minimum boiler water pH is 9.0 regardless of program type.Get Price

  • Control System Improves Reliability and Safety of Recovery

    congruent phosphate control are documented in the literature [2,3,4]. Achieving congruent control requires operating the boiler chemistry within a specified range of sodium-to-phosphate ratios [5,6], presented in Figure 2 as a graph of pH versus phosphate for various pressures. Operating above the range can result in caustic corrosion andGet 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

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