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Composite boiler water treatment agent composition

A technology of composition and boiler water, applied in water treatment parameter control, water/sludge/sewage treatment, water pollutants, etc., can solve the process of aggravating the fouling process of heating surface with high heat load, economic loss, shortening the service life of equipment, etc. question

Inactive Publication Date: 2017-01-04
WEIHAI XIANGYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Boiler corrosion not only shortens the service life of the equipment itself and causes economic losses, but also increases the impurities in the water due to the metal corrosion products entering the water, which intensifies the scaling process on the heating surface with high heat load, which in turn aggravates the corrosion of the boiler
Therefore, boiler corrosion problems will seriously affect the safe and economical operation of boiler equipment.
[0003] The traditional control method is to use the coordinated control method of phosphate and oxygen scavenger. This control method greatly increases the consumption of labor, increases the production cost of the enterprise, and reduces the efficiency of the enterprise.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Select raw materials by weight percentage

[0020] Sodium Erythorbate 12%

[0021] Sodium tripolyphosphate 7%

[0022] Decylamine 20%

[0023] Copper sulfate 0.1%

[0024] Deionized water 60.9%

[0025] Add 60.9% water into the dry reaction kettle; then add 0.1% copper sulfate to the reaction kettle, stir for 5-15 minutes, after completely dissolving, add 12% sodium erythorbate to the stirred solution above, mix and stir 20 to 50 minutes; add 7% sodium tripolyphosphate to the above stirred solution, and stir for 25 to 60 minutes; add 20% decylamine to the above stirred solution, and stir for 10 to 20 minutes.

Embodiment 2

[0027] Select raw materials by weight percentage

[0028] Nitrogen tetrasubstituted p-phenylenediamine 4%

[0029] Sodium hexametaphosphate 6%

[0030] Cyclohexylamine 21%

[0031] Ferrous Sulfate 0.2%

[0032] Deionized water 68.8%

[0033] Add 68.8% water to the dry reaction kettle; then add 0.2% ferrous sulfate to the reaction kettle, stir for 5 to 15 minutes, and add 4% nitrogen tetrasubstituted p-phenylene to the above stirred solution after completely dissolving Diamine, mix and stir for 20 to 50 minutes; add 6% sodium hexametaphosphate to the above stirred solution, and stir for 25 to 60 minutes; add 21% cyclohexylamine to the above stirred solution, and stir 10-20 minutes.

Embodiment 3

[0035] Select raw materials by weight percentage

[0036] Tannin 25%

[0037] Sodium hexametaphosphate 10%

[0038] Cyclohexylamine 15%

[0039] Copper sulfate 0.5%

[0040] Deionized water 49.5%

[0041] Add 49.5% water into the dry reaction kettle; then add 0.5% copper sulfate to the reaction kettle, stir for 5-15 minutes, after completely dissolving, add 25% tannic acid to the above stirred solution, mix and stir 20 to 50 minutes; add 10% sodium hexametaphosphate to the stirred solution and stir for 25 to 60 minutes; add 15% cyclohexylamine to the stirred solution and stir for 10 to 20 minutes.

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Abstract

The invention provides a composite boiler water treatment agent composition integrating corrosion inhibition, scale inhibition, deoxygenization and condensed water corrosion inhibition. The composite boiler water treatment agent composition is prepared from, by mass, an organic reductant 4-30%, polyphosphate 2-15%, amine 5-50%, a catalyst 0.01-2% and deionized water 50-80%. The composite boiler water treatment agent composition can be used for the boiler of any pressure system, has the effects of corrosion inhibition, scale inhibition, deoxygenization and condensed water corrosion inhibition and does not affect the quality of steam.

Description

technical field [0001] The invention relates to boiler water treatment technology, in particular to a composite boiler water treatment agent composition. Background technique [0002] With the process of industrialization in our country, more and more industrial production is applied to the boiler system. Due to the limitation of the boiler system on the condition of feed water, most boilers use demineralized water or demineralized water as make-up water. The hardness of make-up water is low, and metal corrosion is very easy to occur during the operation of the boiler system. Incomplete boiler water replenishment and oxygen removal will also cause boiler corrosion. Common corrosion is also acid gas corrosion. Boiler corrosion not only shortens the service life of the equipment itself and causes economic losses, but also increases the impurities in the water due to the metal corrosion products entering the water, which intensifies the scaling process on the heating surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14C02F101/10
CPCC02F5/14C02F2101/10C02F2101/101C02F2209/22C02F2303/08C02F2303/22
Inventor 杨芳芳李洪社喻果
Owner WEIHAI XIANGYU TECH
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