CN102344201A - Boiler water treatment agent - Google Patents
Boiler water treatment agent Download PDFInfo
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- CN102344201A CN102344201A CN2011102498728A CN201110249872A CN102344201A CN 102344201 A CN102344201 A CN 102344201A CN 2011102498728 A CN2011102498728 A CN 2011102498728A CN 201110249872 A CN201110249872 A CN 201110249872A CN 102344201 A CN102344201 A CN 102344201A
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- Prior art keywords
- boiler water
- treatment agent
- water treatment
- copolymer
- scale
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a boiler water treatment agent which comprises the following components in percentage by weight: 15-40 wt% of copolymer of hydroxyl propyl acrylate, 15-40 wt% of sulfonated styrene, 10-24 wt% of copolymer of hydroxyethyl methacrylate, 10-18 wt% of sodium sulfite, 10-15 wt% of phosphino carboxylic acid, 10-15 wt% of trisodium phosphate and 3-6 wt% of sodium hydroxide. By using the boiler water treatment agent provided by the invention, the hardness of boiler water can be lowered, and the formation of water scale is reduced and inhibited. After the boiler water treatment agent is used, the oxygen content of boiler water is within the national standard range. The boiler water treatment agent provided by the invention also has the actions of residue and hard scale elimination and scale prevention.
Description
Technical field
The invention belongs to the water purification technology field, relate in particular to a kind of water treatment agent that is used for boiler scale-inhibition, antiscale.
Background technology
Boiler plant is the indispensable energy supply arrangement of industrial development, and it is big that it has a volume, installs, changes the characteristics that are difficult for, and therefore needs regular maintenance and cleaning, to delay its aging speed as far as possible.
Corrosion and incrustation scale adhere to, and make the lost of life of steam generating plant, and the thermal conductivity of boiler is reduced, and are the reasons that hinders steady running.Therefore; In steam generating plant; Usually use feedwater through deoxidation treatment and water softening processing; Suppress above-mentioned corrosion and incrustation scale and adhere to, yet the reason that corrosion and incrustation scale adhere to is many-sided; And the corrosive scene also is many-sided; So the soft water that only uses the process deoxidation treatment is difficult to effectively suppress adhering to of corrosion and incrustation scale as feedwater.In the present technology, also often use the method for chemical treatment and physical treatment to remove dissolved oxygen.In chemical treatment, the oxygen scavenger that has been widely used is like sumptuous, light amine groups or carbohydrate etc.When using light amine groups to carry out chemical treatment, light amine can produce acid like nitric acid, thereby has increased the corrosion to boiler.And the defective of carbohydrate is to be difficult to measure its residue concentration in feedwater, thereby is difficult to control correct add-on, and carbohydrate runs into steam can produce foul smell.Usually adopt methods such as soda ash method, sodium ion exchange process, electronics antiscale appearance for clean the boiler and antiscale, but the aforesaid method descale effect is all undesirable.
Summary of the invention
The present invention has designed a kind of water treating agent for boilers, and its purpose is to provide a kind of water treatment agent that is used for boiler scale-inhibition, antiscale.
To achieve these goals, the present invention has adopted following scheme:
A kind of water treating agent for boilers is characterized in that: it is composed of the following components calculating it according to weight fraction:
The copolymer 1 5-40wt% of hydroxypropyl acrylate,
Sulfonated phenylethylene 15-40wt%,
The copolymer 1 0-24wt% of hydroxyethyl methacrylate ester,
S-WAT 10-18wt%,
Phosphinocarboxylic acid 10-15wt%,
Tertiary sodium phosphate 10-15wt%,
With sodium hydroxide 3-6wt%.
As a preferred embodiment of the present invention, it is characterized in that: it is composed of the following components calculating it according to weight fraction:
The multipolymer 23wt% of hydroxypropyl acrylate,
Sulfonated phenylethylene 17wt%,
The copolymer 1 5wt% of hydroxyethyl methacrylate ester,
S-WAT 12wt%,
Phosphinocarboxylic acid 13wt%,
Tertiary sodium phosphate 15wt%,
With sodium hydroxide 5wt%.
Water treating agent for boilers of the present invention, wherein S-WAT has preferable deaerating effect; The multipolymer of hydroxyethyl methacrylate ester, the multipolymer of hydroxypropyl acrylate and sulfonated phenylethylene are good Scale inhibitorss after mixing; Tertiary sodium phosphate can form passive film on metal; Yellow soda ash and sodium hydroxide play the effect of regulating the pH value.
This water treating agent for boilers has following beneficial effect:
Water treating agent for boilers of the present invention can also make boiler water quality hardness reduce, and reduces and stop the formation of incrustation scale, and the oxygen level of using the back feedwater is in the national standard scope.Water treating agent for boilers of the present invention also has except that residual hard and anti-scaling action simultaneously.
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Embodiment
Below in conjunction with embodiment, the present invention is further specified:
Embodiment 1
Calculating it according to weight fraction is to be grouped into by following one-tenth: buy commercially available S-WAT 10wt%; The multipolymer 23wt% of hydroxypropyl acrylate; Sulfonated phenylethylene 17wt%; The copolymer 1 5wt% of hydroxyethyl methacrylate ester; Phosphinocarboxylic acid 13wt%, tertiary sodium phosphate 15wt% and sodium hydroxide 5wt%; Mix after the pulverizing, add 90% the water dilution and the back barrelling that stirs and process medicament.
Above-mentioned additive is used for certain power station coal firing boiler.Dosage is considered to press boiler water quality, and water adding medicine 0.1-0.6 kilogram per ton adds water-supply pipe to soup with pump in proportion, and through measuring water quality after the circulation, deoxygenation rate and antiscaling rate reach 93% and 85% respectively.
Combine specific embodiment that the present invention has been carried out exemplary description above; Obvious realization of the present invention is not subjected to the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all in protection scope of the present invention.
Claims (2)
1. water treating agent for boilers is characterized in that: it is composed of the following components calculating it according to weight fraction:
The copolymer 1 5-40wt% of hydroxypropyl acrylate,
Sulfonated phenylethylene 15-40wt%,
The copolymer 1 0-24wt% of hydroxyethyl methacrylate ester,
S-WAT 10-18wt%,
Phosphinocarboxylic acid 10-15wt%,
Tertiary sodium phosphate 10-15wt%,
With sodium hydroxide 3-6wt%.
2. according to the said water treating agent for boilers of claim 1, it is characterized in that: it is composed of the following components calculating it according to weight fraction:
The multipolymer 23wt% of hydroxypropyl acrylate,
Sulfonated phenylethylene 17wt%,
The copolymer 1 5wt% of hydroxyethyl methacrylate ester,
S-WAT 12wt%,
Phosphinocarboxylic acid 13wt%,
Tertiary sodium phosphate 15wt%,
With sodium hydroxide 5wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102498728A CN102344201A (en) | 2011-08-29 | 2011-08-29 | Boiler water treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102498728A CN102344201A (en) | 2011-08-29 | 2011-08-29 | Boiler water treatment agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102344201A true CN102344201A (en) | 2012-02-08 |
Family
ID=45543326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102498728A Pending CN102344201A (en) | 2011-08-29 | 2011-08-29 | Boiler water treatment agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102344201A (en) |
-
2011
- 2011-08-29 CN CN2011102498728A patent/CN102344201A/en active Pending
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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: 20120208 |