CN101638273A - High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler - Google Patents
High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler Download PDFInfo
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- CN101638273A CN101638273A CN200910306266A CN200910306266A CN101638273A CN 101638273 A CN101638273 A CN 101638273A CN 200910306266 A CN200910306266 A CN 200910306266A CN 200910306266 A CN200910306266 A CN 200910306266A CN 101638273 A CN101638273 A CN 101638273A
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- boiler
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Abstract
The invention relates to a high-efficiency corrosion-mitigation scale-inhibition water saving agent used for a boiler, which contains the following components in percentages by weight: 15-20 percent of hydroxyl ethylidene diphosphate, 3-4 percent of sodium hydroxide, 25-35 percent of urotropin, 10-25 percent of benzotriazole and 20-30 percent of sodium silicate. The invention has the advantages ofefficient high-efficiency corrosion-mitigation scale-inhibition effect, water-saving function and minimal corrosion to boiler appliances.
Description
Technical field
The present invention relates to a kind of water treating agent for boilers, especially high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler.
Background technology
The matting of at present general boiler systems and scale inhibition mainly are to adopt some acid or acid salt and alkali to carry out.Clean use maximum with hydrochloric acid in the acids, can wash hard scale and some corrosion products of forming in the boiler plant effectively; It is to remove a sedimental class clean-out system in the hardware with strong basicity or alkaline chemical agent as clean-out system that alkali cleans.Yet, when clean-out system is to be cleaned the thing reaction, also caused certain corrosion to boiler plant no matter be that acid is cleaned or alkali cleans.Natural Scale inhibitors is the non-acid-base class water treatment scale of the class agent that early is used, generally be by natural product through further being processed into, but poor effect.Therefore need a kind of corrosion-mitigation scale-inhibition water saving agent efficiently,, and can alleviate corrosion boiler appliances in the sedimentary while that effectively prevents dirty thing.
Summary of the invention
At existing boiler corrosion inhibiting and descaling agent boiler appliances corrosion is reached phenomenons such as result of use is not good more greatly, the invention provides a kind of high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler, when having the high-efficiency corrosion-mitigation scale-inhibition effect, reduced the corrosion of reagent greatly boiler appliances.
The technical solution adopted for the present invention to solve the technical problems is: high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler, and its components matching per-cent by weight is hydroxy ethylidene-diphosphate 15-20%, sodium hydroxide 3-4%, urotropine 25-35%, benzotriazole 10-25%, water glass 20-30%.
Its best proportioning is a hydroxy ethylidene-diphosphate 19%, sodium hydroxide 4%, urotropine 30%, benzotriazole 22%, water glass 25%.
The beneficial effect that the present invention produces is: anticorrosion-antiscaling effect efficiently, water saving effect is arranged, and minimum to boiler appliances corrodibility.
Embodiment
Hydroxy ethylidene-diphosphate wherein is by its molecule high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler, and its components matching per-cent by weight is, hydroxy ethylidene-diphosphate 15-20%, sodium hydroxide 3-4%, urotropine 25-35%, benzotriazole 10-25%, water glass 20-30%.
In part functional group, be adsorbed on the active site on crystal (nucleus) surface that causes dirty metallic salt and forming by electrostatic force, suppress crystal growing, thereby make many crystal of formation remain on microcrystalline state, this has equaled to increase and has caused the solubleness of dirty metallic salt in water; Meanwhile, because the absorption of Scale inhibitors molecule on plane of crystal even crystal increases, also can only increase by abnormal field, this just makes crystal produce distortion.The crystal after the distortion and the adhesive power of metallic surface weaken, and therefore are difficult for being deposited on the metallic surface; Because be adsorbed in functional group on the plane of crystal and be the part functional group in the Scale inhibitors molecule, those do not participate in the functional group of absorption, will present ionicly to crystal, because of increasing, the repulsive force of electric charge make crystal be in dispersion state.More than three kinds of effects exist simultaneously, make in water stop same amount cause dirty metal-salt not in the amount of the required Scale inhibitors of metallic surface fouling, be sequestered in and make it not precipitate the amount of required sequestrant in the water far below the dirty metal-salt that causes that will measure equally.
Claims (2)
1. high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler, its components matching per-cent by weight is hydroxy ethylidene-diphosphate 15-20%, sodium hydroxide 3-4%, urotropine 25-35%, benzotriazole 10-25%, water glass 20-30%.
2. high-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler as claimed in claim 1, its components matching per-cent by weight are hydroxy ethylidene-diphosphate 19%, sodium hydroxide 4%, urotropine 30%, benzotriazole 22%, water glass 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910306266A CN101638273A (en) | 2009-08-28 | 2009-08-28 | High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910306266A CN101638273A (en) | 2009-08-28 | 2009-08-28 | High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101638273A true CN101638273A (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910306266A Pending CN101638273A (en) | 2009-08-28 | 2009-08-28 | High-efficiency corrosion-mitigation scale-inhibition water saving agent for boiler |
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| CN (1) | CN101638273A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311177A (en) * | 2010-06-30 | 2012-01-11 | 三浦工业株式会社 | Method of operating steam boiler |
| CN102716672A (en) * | 2012-06-13 | 2012-10-10 | 丰信精细化工(上海)有限公司 | Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system |
| CN110803785A (en) * | 2018-08-06 | 2020-02-18 | 中国石油化工股份有限公司 | Composite corrosion and scale inhibitor containing urotropine, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur |
-
2009
- 2009-08-28 CN CN200910306266A patent/CN101638273A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311177A (en) * | 2010-06-30 | 2012-01-11 | 三浦工业株式会社 | Method of operating steam boiler |
| CN102716672A (en) * | 2012-06-13 | 2012-10-10 | 丰信精细化工(上海)有限公司 | Composite cleaning agent for cleaning calciferous, magniferous, siliceous and ferrous fouling of membrane system |
| CN110803785A (en) * | 2018-08-06 | 2020-02-18 | 中国石油化工股份有限公司 | Composite corrosion and scale inhibitor containing urotropine, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur |
| CN110803785B (en) * | 2018-08-06 | 2021-08-03 | 中国石油化工股份有限公司 | Composite corrosion and scale inhibitor containing urotropine, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100203 |