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control of the water and steam purity is directed to: - prevention of corrosion in the boiler, steam, condensate and feedwater systems - prevention of scale and …
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2017/2/27 · Acidic compounds (CO2, DW leaks, etc) need to be neutralized. To ensure a proper pH at operating Temp in boiler water and boiler feed water, a measured pH above 9.4 and 9.2 respectively is recomended.
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By adding sodium sulphate or sodium phosphate to boiler water which clogs the hair cracks opening, reducing the chance of caustic embrittlement. Tannin or lignin addition to boiler water which blocks the hair cracks preventing the infilteration of caustic soda
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"hydrazine-less" water chemistry in fossil plants that had an all ferritic condensate and feedwater systems. The use of such chemistries was found to reduce the iron transport rate to the boiler by a factor of 2 or 3 (Reference 1). It should be noted that, in
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Boiler Chemistry Control and Treatment of Feed Water | SciTech Connect
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Boiler Chemistry Control and Treatment of Feed Water | SciTech Connect
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combusted by adding secondary air to the boiler. This causes a rise in temperature and oxygen content, as the thermal design of hot water boiler of KV-F …
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combusted by adding secondary air to the boiler. This causes a rise in temperature and oxygen content, as the thermal design of hot water boiler of KV-F …
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Water 2.1 Introduction 2.2 Sources of Water 2.3 Effect of Water on Rocks and Minerals 2.4 Common Impurities of Water 2.5 Water Quality Standards 2.6 Hardness of Water 2.7 Disadvantages of Hard Water 2.8 Water for Industries 2.9 Boiler Problems with Hard
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Upon completion of the etching operation, the etching solution is preferably rinsed out of the etching system with the fully desalted water, if desired with an addition of hydrazine. After pre-rinsing, the etching circulation is preferably short-circuited, for example, through a device for desalting any condensate present in the plant, for the purpose of expediting the ultimate cleaning.
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Ill effects of using hard water in boilers: Depending upon the operating pressure of the boiler, the feed water should satisfy the following requirement of hardness. Types of boiler Low pressure Medium pressure High pressure Permitted hardness in feed water 40 – 80 ppm 10 – 40 ppm 0 – 10 ppm If the boiler feed water is not up to the standard limit, it gives rise to Scale and Sludge
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By adding sodium sulphate or sodium phosphate to boiler water which clogs the hair cracks opening, reducing the chance of caustic embrittlement. Tannin or lignin addition to boiler water which blocks the hair cracks preventing the infilteration of caustic soda
Get price
Ill effects of using hard water in boilers: Depending upon the operating pressure of the boiler, the feed water should satisfy the following requirement of hardness. Types of boiler Low pressure Medium pressure High pressure Permitted hardness in feed water 40 – 80 ppm 10 – 40 ppm 0 – 10 ppm If the boiler feed water is not up to the standard limit, it gives rise to Scale and Sludge
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2015/5/5 · It is necessary to treat the boiler water to produce protective coat on the tubes required for good quality water & steam. For this it is necessary that the water shall be low controlled alkaline, very low level of dissolved Oxygen and very low presence of ions like Cl–. Silica from CW is another damaging factor as it deposits on turbine.
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2017/2/27 · Acidic compounds (CO2, DW leaks, etc) need to be neutralized. To ensure a proper pH at operating Temp in boiler water and boiler feed water, a measured pH above 9.4 and 9.2 respectively is recomended.
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Important Questions and Answers: Water Technology
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Upon completion of the etching operation, the etching solution is preferably rinsed out of the etching system with the fully desalted water, if desired with an addition of hydrazine. After pre-rinsing, the etching circulation is preferably short-circuited, for example, through a device for desalting any condensate present in the plant, for the purpose of expediting the ultimate cleaning.
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The softening of water carried out inside the boiler is called Conditioning/Internal treatment of water In this process, the hardness causing dissolved salts were prohibited 1) By complexing the hardness causing soluble salts by adding appropriate reagents 2) By
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water, and then adding the NH4OH to stabilize the S04=. The results of this experiment are shown OF S03* Sample ' ID 0 K L N Q Q R S Process Type Coal boiler Wood boiler Coal boiler Coal boiler Oil boiler Oil boiler Oil boiler Oil boiler DI water Initial Sulfate (mg
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"hydrazine-less" water chemistry in fossil plants that had an all ferritic condensate and feedwater systems. The use of such chemistries was found to reduce the iron transport rate to the boiler by a factor of 2 or 3 (Reference 1). It should be noted that, in
Get price
water, and then adding the NH4OH to stabilize the S04=. The results of this experiment are shown OF S03* Sample ' ID 0 K L N Q Q R S Process Type Coal boiler Wood boiler Coal boiler Coal boiler Oil boiler Oil boiler Oil boiler Oil boiler DI water Initial Sulfate (mg
Get price
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