CN102765820A - HEDP (hydroxyethylidenediphosphonic acid)-based organic corrosion and scale inhibitor for industrial boiler - Google Patents
HEDP (hydroxyethylidenediphosphonic acid)-based organic corrosion and scale inhibitor for industrial boiler Download PDFInfo
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- CN102765820A CN102765820A CN2012102508156A CN201210250815A CN102765820A CN 102765820 A CN102765820 A CN 102765820A CN 2012102508156 A CN2012102508156 A CN 2012102508156A CN 201210250815 A CN201210250815 A CN 201210250815A CN 102765820 A CN102765820 A CN 102765820A
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Abstract
The invention discloses an HEDP (hydroxyethylidenediphosphonic acid)-based organic corrosion and scale inhibitor for an industrial boiler, which is prepared from the following raw materials in percentage by mass: 20-40% of HEDP, 4-10% of hydroxypropyl methacrylate, 0.5%-2% of acetaldoxime, 0.02-0.1% of organic sludge regulator and the balance of water. The corrosion and scale inhibitor disclosed by the invention does not contain any inorganic corrosion and scale inhibition component, is a full-organic formula, and effectively eliminates the possibility of increasing boiler water dissolved solids; and the corrosion and scale inhibitor has the advantages of high corrosion and scale inhibition efficiency, low addition amount, no toxicity, low cost, wide component sources and stable high-temperature properties, is suitable for various boiler types and various supply water quality conditions, and does not influence the boiler operation water quality index.
Description
Technical field
The present invention relates to a kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP.
Background technology
Industrial Boiler is important industrial heat energy equipment; It also is the high energy consumption special equipment; Be widely used in industry and fields such as chemical industry, papermaking, weaving, machinery, food, closely related with the people's life, the security of its operation and economy are directly connected to the security developments of economic society.Industrial boilers in China has 600,000 of Industrial Boilers at present, the nearly 700,000,000 tons of fuel of annual consumption.Current, industrial boilers in China thermo-efficiency is generally low by 10%～15% than European developed country, and one of them major cause is exactly the boiler water quality problem.According to statistics, the boiler safety accident that causes because of water treatment problems of annual China accounts for about 30% of boiler breakdowns total amount.Boiler water processing both had been related to the safety of boiler, also was related to the energy-saving and cost-reducing of boiler.Generally acknowledge in the world that at present the most effectively the boiler water processing mode is that outer softening processing of pot adds operation dosing water quality regulation in the pot.Industrial Boiler all is to make supplementary feed with the one-level softening water more than 95%, and all is not equipped with deoxygenator.Softening water has just been removed the hardness impurity (Ca and Mg) in the former water, and other impurity is not all removed such as anionic impurity and gaseous impurities, is a kind of unpurified water therefore.Softening water has just been removed the hardness impurity (Ca and Mg) in the former water, and other impurity is not all removed such as anionic impurity and gaseous impurities, is a kind of unpurified water therefore.Many softening equipment level of management are lower, and equipment healthy state is poor, and effluent characteristics is low, and residual harness is high.The deaeration plant rate of utilization is low, and 85% above boiler feedwater oxygen level is defective.So just cause the softening water of high residual harness and dissolved oxygen just to get into boiler as supplementary feed.Therefore, heating surface fouling, etching problem are generally relatively more serious in the operational process, cause boiler thermal output to descend and the heated surface corrosion booster.On the-spot investigation shows that all there be fouling and etching problem in various degree in the Industrial Boiler more than 90%.If the incrustation scale that the heating surface knot is given birth to 1mm in the industrial boiler operation process, boiler thermal output can reduce by 5% ~ 8%.
In pot water, adding corrosion inhibiting and descaling agent in the operational process is one of main mode that prevents the Industrial Boiler corrosion and scaling.Add fouling and the etching problem that to control boiler like inorganic Scale inhibitorss such as tsp, sodium hydroxide, yellow soda ash, S-WATs at present a lot of applying unit operational processs; Have add separately a kind of; Also have several kinds of mixing to add together, but scale inhibition performance and corrosion inhibition rate are lower.What the more important thing is that impurity in these medicaments and the feedwater generates all is grain slag and part salts substances, has increased the dissolved solid of feedwater, makes boiler that the danger of generation priming arranged.And grain slag will be drained through draining of boiler, and this has caused the loss of boiler heat to cause efficiency to reduce again.When yellow soda ash and sodium hydroxide concentration are too much, going back container causes feedwater pH value higher.Yellow soda ash generally can only use at the Industrial Boiler of pressure less than 1.5MPa.Also have some units to adopt organic colloid to make anti-incrustation corrosion inhibitor such as tannin extract or Sodium salts humic acids; But these materials have color, and add-on is many slightly will to cause the feedwater color burn to influence steam quality, and the two all is a crude substance; Cause performance difference and less stable owing to the places of origin of raw materials is different; Its solubleness in water is little, is prone to be bonded to pasty state, and the scale inhibitor effect is also on the low side.They only are used for pressure < 1.5MPa, rated capacity are less than the boiler of 4t/>h generally speaking.Main is direct current and the tubular Industrial Boiler that these medicaments can not be used for present widespread use.
The organic inhibition dirty-proof agent also is used on the Industrial Boiler at present; Such as ethylenediamine tetramethylene phosphonic acid salt (EDTMPS), ZX-I (PAAS) etc., but mostly be the medicament or the simple several kinds of medicaments mixing of single component, it is poor that heatproof is on good terms; Effect is limited, and scale inhibition performance is often only about 80%.Also some unit is used in central air-conditioning or recirculated cooling water on the Industrial Boiler with anti-incrustation corrosion inhibitor, because use temperature, the difference of pressure and the difference of medicine component, effect is not only not obvious, and have serious boiler corrosion also taken place.
Summary of the invention
The purpose of this invention is to provide a kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP.
The technical scheme that the present invention taked is:
A kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and its raw material by following mass percent is formed: 20%～40% hydroxy ethylene diphosphonic acid, 4%～10% HPMA, 0.5%～2% ethylidenehydroxylamine, 0.02%～0.1% organic sludge regulator, water are surplus.
A kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and its raw material by following mass percent is formed: 25%～33% hydroxy ethylene diphosphonic acid, 5%～9% HPMA, 0.8%～1.7% ethylidenehydroxylamine, 0.02%～0.08% organic sludge regulator, water are surplus.
Described organic sludge regulator is the EDTA disodium.
The invention has the beneficial effects as follows: (1) does not have inorganic anti-incrustation corrosion inhibitor composition, and all-organic formula is effectively eliminated the possibility that increases the feedwater dissolved solid;
(2) scale inhibitor efficient is high, adding less, nontoxic, cost is low, stable performance under the composition wide material sources, high temperature, is applicable to the various type of furnaces and various supplementary feed condition of water quality, does not influence the boiler operatiopn water-quality guideline.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explanation:
Embodiment 1:
A kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and its prescription is formed like following table:
Embodiment 2:
A kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and its prescription is formed like following table:
Embodiment 3:
A kind of is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and its prescription is formed like following table:
The preparation method of Industrial Boiler of the present invention with the organic inhibition dirty-proof agent is described below again:
Under the room temperature, with various raw materials mix and be uniformly dispersed and get final product, the preparation method is the conventional techniques means in the industry.
Use Industrial Boiler of the present invention to use the method for organic inhibition dirty-proof agent to be: can directly join in the feedwater; And make that drug concentration is that (that is: in the water of 1L, contain of the present invention is that to use the quality of organic inhibition dirty-proof agent be 8～10mg) to main Industrial Boiler with HEDP to 8～10mg/L.
Test according to GB/T16811-2005 " Industrial Boiler water processing establishment last effect and monitoring ", the scale inhibition performance of product of the present invention reaches more than 95%, and corrosion inhibition rate reaches 99%.
Claims (3)
1. one kind is that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, and it is characterized in that: its raw material by following mass percent is formed: 20%～40% hydroxy ethylene diphosphonic acid, 4%～10% HPMA, 0.5%～2% ethylidenehydroxylamine, 0.02%～0.1% organic sludge regulator, water are surplus.
2. according to claim 1 a kind of be that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, it is characterized in that: its raw material by following mass percent is formed: 25%～33% hydroxy ethylene diphosphonic acid, 5%～9% HPMA, 0.8%～1.7% ethylidenehydroxylamine, organic sludge regulator of 0.02%～0.08%.
3. according to claim 1 a kind of be that main Industrial Boiler is used the organic inhibition dirty-proof agent with HEDP, it is characterized in that: described organic sludge regulator is the EDTA disodium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102508156A CN102765820A (en) | 2012-07-19 | 2012-07-19 | HEDP (hydroxyethylidenediphosphonic acid)-based organic corrosion and scale inhibitor for industrial boiler |
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| CN2012102508156A CN102765820A (en) | 2012-07-19 | 2012-07-19 | HEDP (hydroxyethylidenediphosphonic acid)-based organic corrosion and scale inhibitor for industrial boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773848A (en) * | 2015-04-30 | 2015-07-15 | 广州特种承压设备检测研究院 | Organic-phosphonate-based organic energy-saving and emission-reduction agent for industrial boiler |
| CN110294538A (en) * | 2019-07-25 | 2019-10-01 | 鞍钢贝克吉利尼水处理有限公司 | A kind of compound deoxygenation scale inhibitor and preparation method thereof applied to boiler low-hardness water |
| CN114849297A (en) * | 2022-05-07 | 2022-08-05 | 廊坊碧水源水处理技术有限公司 | Inhibitor for treating hardening of filter material in blast furnace slag flushing bottom filter, method and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024783A (en) * | 1989-10-10 | 1991-06-18 | Fremont Industries, Inc. | Boiler and boiler water treatment system |
| CN1068313A (en) * | 1991-07-08 | 1993-01-27 | 化学工业部天津化工研究院 | Water treating agent for boilers |
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN101077811A (en) * | 2007-04-20 | 2007-11-28 | 上海电力学院 | Low-phosphorus scale and corrosion inhibitor used for stainless steel tube steam condenser |
| CN101117256A (en) * | 2007-07-20 | 2008-02-06 | 南京市第一精细化工公司精细化工厂 | Fully-organic inhibition dirty-proof industrial water conditioning agent and method for making same |
| CN101182078A (en) * | 2007-11-12 | 2008-05-21 | 中国海洋石油总公司 | Corrosion inhibition anti-sludging agent for boiler heating network |
-
2012
- 2012-07-19 CN CN2012102508156A patent/CN102765820A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024783A (en) * | 1989-10-10 | 1991-06-18 | Fremont Industries, Inc. | Boiler and boiler water treatment system |
| CN1068313A (en) * | 1991-07-08 | 1993-01-27 | 化学工业部天津化工研究院 | Water treating agent for boilers |
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN101077811A (en) * | 2007-04-20 | 2007-11-28 | 上海电力学院 | Low-phosphorus scale and corrosion inhibitor used for stainless steel tube steam condenser |
| CN101117256A (en) * | 2007-07-20 | 2008-02-06 | 南京市第一精细化工公司精细化工厂 | Fully-organic inhibition dirty-proof industrial water conditioning agent and method for making same |
| CN101182078A (en) * | 2007-11-12 | 2008-05-21 | 中国海洋石油总公司 | Corrosion inhibition anti-sludging agent for boiler heating network |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773848A (en) * | 2015-04-30 | 2015-07-15 | 广州特种承压设备检测研究院 | Organic-phosphonate-based organic energy-saving and emission-reduction agent for industrial boiler |
| CN110294538A (en) * | 2019-07-25 | 2019-10-01 | 鞍钢贝克吉利尼水处理有限公司 | A kind of compound deoxygenation scale inhibitor and preparation method thereof applied to boiler low-hardness water |
| CN114849297A (en) * | 2022-05-07 | 2022-08-05 | 廊坊碧水源水处理技术有限公司 | Inhibitor for treating hardening of filter material in blast furnace slag flushing bottom filter, method and application |
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Application publication date: 20121107 |