Why Maintain Ph 9 6 To11 5 Boiler Drum

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Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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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

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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%

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Applicable fuel:Natural gas, etc.

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Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

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Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy

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  • Silica Monitoring TECHNICAL NOTE On Power Plant

    9 0 4 7 6 8 @ Boiler Drum Turbines Condenser Extractor Pump L-P Heater Electrical Power Output Deaerator Feed Pump H-P Heater Boiler Blowdown Super Heater Economiser Cooling Water Boiler Tubes Condensate Chemical Dosing Makeup Water Chemical Dosing Cooling Water 5 4! @ 7 6 8 Turbines Condenser Extractor Pump L-P Heater Electrical Power Output Get Price

  • Does a Boiler Need Regular Water Analysis and Treatment

    Aug 11, 2020 · While the common tap water pH value varies from 6.5 to 7.5, those bottled water sold as alkaline water claims their pH value from 8 to 9. So in this case, it is still safe to drink water or a beverage with a pH value between 6.5 to 9. Going back to Boiler water, the pH value should be controlled to pH 10.5 to 11. Why?Get Price

  • Boiler Water - an overview | ScienceDirect Topics

    6. boiler drum level (applicable to drum boiler) in excess of recommended operating level (excessive increase in boiler drum water level may interfere with the operation of the internal devices in the boiler drum, which separate moisture from the steam, resulting in carryover of water into the superheater or steam turbine causing mechanical Get Price

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  • Water analysis from_intake_well_to_boiler_drum-n

    May 27, 2014 · water from bfp to boiler drum bfp hph-1 hph-2 economiser boiler drum hp dosing tri sodium phosphat e for maintaing ph final super heater blow down on boiler drum silica – <1000ppb ph-9.2to9.50 conductivity-<6.0 on super heater silica –0.02ppm ph-8.80—9.20 conductivity- <0.2 sodium- 0—10ppb 14.Get Price

  • Boiler Water Treatment Guidelines; Columbia Boiler Co

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  • Boiler Drum Water pH and Boiler Feed Water pH - CR4

    Why do we maintain a boiler pH value from 11 to 11.5? The recommended boiler pH value should be between 8.5 to 9.5. A lower pH would lead to corrosion issues whereas pH on higher side leads to problems of scaling and foaming. 207 views View upvotes Related Answer Robert M. …Get Price

  • Inferred pH in Steam Plant Water Chemistry Monitoring

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    Oct 20, 2014 · It is universally followed that the Boiler Drum Water pH will be always higher than Feed Water and it will be in the range of 10.5 to 11 for Drum Water, and 8.2 to 8.5 for Feed Water. The Boiler Manufacturer has prescribed the Water Quality as follows in the Instruction Manual. TDS of Feed Water is 2 ppm, and for and Drum Water is 100 ppm.Get Price

  • pH Measurements in a Power Plant - Honeywell Process

    (AVT) or Phosphate, and 9.6 to 9.9 with Alternate Amine Treatment. The pH range is somewhat lower for Oxygenated Water Treatment (OT) in once-through boilers -- 7.0 to 8.8 pH. The narrow ranges and critical nature of the water's pH make accuracy and stability highly important.Get Price

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    Industrial Manufacturers 20t Biomass Fired Steam Boiler . Supplier 10t Biomass Fired Boiler Plant Kyrgyzstan. gas fired steam boiler quotation in kyrgyzstan Industrial Gas Oil Gas & Oil Liming · As a leader in industrial Zozen offers 05-130 ton with pressure up to 981MPa / 981bar industrial gas and oil steam hot water and power Learn More.Get Price

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  • IS 10496 (1983): Feed Water, Boiler Water and Condensate

    pH values should be limited to 8.5 to 9.2 and without cuprous feed heaters to 9.2 to 9.5. For spray attemperation, the feed water should be dosed only with volatile chemical, if necessary; caustic soda should be injected direct to the boiler drum.Get Price

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    The pH or alkalinity level maintained in a boiler system depends on many factors, such as sys-tem pressure, system metals, feedwater quality, and type of chemical treatment applied. The corrosion rate of carbon steel at feedwater temperatures approaches a minimum value in the pH range of 9.2-9.6 (see Figure 11-9). It is important to monitor the feedwater system for corrosion …Get Price

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  • (PDF) Boiler learning module | Veerabhadra Rao Korimilli

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    May 25, 2016 · However, the boiler feedwater pH is generally between 9.0 and 9.6 and hardness as calcium carbonate is less than 0.5 ppm. The boiler water pH is generally maintained in the range of 10.0 to 11.4. The boiler water pH is attained by a combination of alkalinity derived from the chelant feed (e.g., as Na4EDTA), evolution of CO2 from softened Get Price

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    Oct 14, 2007 · Robert Bartholomew, Sheppard T. Powell Associates, LLC. 'aanita', on 14 Oct 2007 - 7:30 PM, said: Boiler feed water (BFW) pH is to be maintained in the range of 8.0 to 9.5 (guidelines) where as in steam drum pH maintaining guidelines is in the range of 9.5 to 11.0. Pressure of steam drum is 34 barg.Get Price

  • USCG License Questions Steam (old) Part 2 - Quizlet

    (A.) maintain uniform steam flow through the superheater while providing auxiliary steam as required (B.) heat the water in the drum while maintaining sufficient flow through the generating tubes (C.) provide the boiler with additional steam generating surface while providing a sufficient reservoir for surface blow (D.) heat the water in the Get Price

  • CHAPTER 3: STEAM GENERATOR CONTROL

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    The boiler receives the feed water, which consists of varying proportion of recovered condensed water (return water) and fresh water, which has been purified in varying degrees (make up water).The make-up water is usually natural water either in its raw state, or treated by some process before use.Get Price

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    Jan 03, 2022 · March 17, 2012. Q. I am working in a power industry of 500 MW unit and the drum pressure is around 190 Kg/cm2. I am facing the problem i.e., the drum pH is gradually in decreasing tendency i.e., around 4.4 and the phosphate reserve is < 1.0 and the pH and conductivity of the feed, condensate and steam values are in normal range i.e., pH - 8.9 and …Get Price

  • Scaling in boilers - Lenntech

    CaCO 3 0.5-1 kcal/m 2.h per degree C SiO 2 0.2-0.5 kcal/m 2.h per degree C. Scaling is mainly due to the presence of calcium and magnesium salts (carbonates or sulphates), which are less soluble hot than cold, or to the presence of too high concentration of silica in relation to the alkalinity of the water in the boiler.Get Price

  • pH Treatment | CleanBoiler.org

    For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6. The same holds true for pH values above 7, each of which is ten times more alkaline (another way to say basic) than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9.Get Price

  • Recommended ABMA & ASME Boiler Water Limits Boiler …

    all pH ranges and concentrations, and are available in liquids and powders. Also, more effective products for boiler lay-ups are RECOMMENDED ABMA & ASME BOILER WATER LIMITS* DRUM OPERATING PRESSURE (psig) 0-300 301-450 451-600 601-750 751-900 901-1000 1001-1500 1501-2000 6.5 0.15 4.9 0.1 3.3 0.04 0.5 0.01 0.3 0.005 MAKE-UP AT 1% Get Price

  • Why is phosphate dosing done in a boiler? - Quora

    Answer (1 of 10): Boiler Scale Inhibitors Boiler water chemical treatment is necessary to prevent or control scale and deposit formation. The formation of scale and sludge can cause tube failures, restrict circulation, reduce system efficiency, and compromise your boiler system's reliability. BGet Price

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    This explains why to date the soot blower lances in this boiler have shown no signs of corrosion. Table 1. Ash and Flue Gas Chemistry Firing Load, Boiler TSS CO3, wt% A 3.44 <0.6 B 3.44 <0.6 C 2.90 10 - 20. Precipitator Ash Cl, wt% 5-6 5-6 5-6. K, wt% 7-8 7-8 7-8. Stack Gases SO2, ppm TRS, ppm 50 <1 120 <1 10 <1Get Price

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