CN102730852A - Special corrosion and scale inhibitor for power plant circulating water - Google Patents
Special corrosion and scale inhibitor for power plant circulating water Download PDFInfo
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- CN102730852A CN102730852A CN2012102439122A CN201210243912A CN102730852A CN 102730852 A CN102730852 A CN 102730852A CN 2012102439122 A CN2012102439122 A CN 2012102439122A CN 201210243912 A CN201210243912 A CN 201210243912A CN 102730852 A CN102730852 A CN 102730852A
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Abstract
The invention provides a special corrosion and scale inhibitor for power plant circulating water. The inhibitor comprises the following components in percentage by weight: 5-10% of hydroxy ethylidene diphosphonic acid, 10-15% of amino trimethylene phosphonic acid, 2-6% of diethylene triamine penta methylene phosphonic acid, 20-30% of hydrolytic polymaleic anhydride, 20-30% of polyacrylic acid and 19-43% of deionized water. The special corrosion and scale inhibitor for power plant circulating water can not only realize the operation of the power plant circulating cooling water in high cycles of concentration, but also conform to the standard DL/806-2002 (corrosion and scale inhibitor for power plant circulating water).
Description
Technical field
The invention belongs to the industrial circulating cooling water processing technology field, be specifically related to a kind of electric power plant circulating water special corrosion and scale inhibitor.
Background technology
Along with deepening continuously of State Grid's system reform, electricity market is progressively implemented the principles and policies of separating the factory and network, surfing the Net at a competitive price.The production of electricity power enterprise will reduce cost of electricity-generating to save energy and reduce the cost, and strengthens the competitive power of rate for incorporation into the power network, carries out the recirculated cooling water work of treatment, has great significance for reducing cost of electricity-generating.
The water resources of China owning amount per capita is 2200m3, only accounts for 1/4 of world average level, belong to water resources and lack country, and the limited water resource distribution is very inhomogeneous, and 81% is distributed in the Yangtze valley and areas to the south.Present China shortage of water resources, one side exists the situation of a large amount of waste water resources again in addition.
Thermal power plant is the process water rich and influential family, and its water loss accounts for about 20% of industrial water consumption, and at the northern area of lack of water, the water resources wretched insufficiency construction of thermal power plant and operation are restricted, so water saving becomes the task of top priority.According to the pertinent data statistics, the water consumption rate of China condensing-type thermal power plant is 1.64m3/ (s.GW), compares with external (0.7～0.9) m3/ (s.GW), and the water saving potential space of China is very big.The water intaking standard of the unit generated energy of State Economic and Trade Commission's approval is at present formally implemented; Its purpose is to limit the water withdrawal in fuel-burning power plant; Concrete regulation is following: take the water withdrawal quota of recirculating cooling water system time unit generated energy, single-machine capacity＜300MW/h is 4.80m3MWh; Single-machine capacity >=300MW/h is 3.84m3MWh.The thermal power plant that the present whole nation reaches this standard is less than 30%, and therefore the space of water saving is huge.The water ratio of thermal power plant: recirculating cooling water system supplementary feed 50～80%; Waterpower is failed grey water 20%～40%; Boiler feedwater 2～4%; Therefore the focus of thermal power plant should improve the concentration rate of recirculated cooling water optimizing water coolant and towards aspect the design and running of ash water system, reducing the blowdown flow rate of recirculated cooling water as far as possible.But when improving concentration rate, can make system's fouling and etching problem more outstanding, also recirculated cooling water handled and had higher requirement.
The different stages has been experienced in the development and application of Scale inhibitors; As dispersion agent, suppress the generation of incrustation scale from natural organic matters such as the tannin of early stage use, xylogen, use more polymeric phosphates such as tripoly phosphate sodium STPP finally; Until at present; The Scale inhibitors of organic phosphate has obtained popularize in an all-round way using, but owing to water resources water quality goes from bad to worse and reason such as environmental requirement, the recirculated cooling water treatment technology is had higher requirement again.
Mention among the Chinese patent CN 101560022A with organic phosphine and polymkeric substance and come composite corrosion inhibiting and descaling agent, reached good effect, but be difficult to adapt to the circulating water treatment requirement that power system is increased day by day as composite monomer.To do this, combined with the actual maintenance of plant operation, in the study for a variety of substances affect the circulating cooling water system operation case, the operation of the circulating cooling water made a series of experimental studies, to provide a practical power plant corrosion inhibitors, can achieve high concentration run, but also meet the power plant Xun ring water corrosion inhibitors standards DL/806-2002.
Summary of the invention
The present invention provides a kind of electric power plant circulating water special corrosion and scale inhibitor; Comprise HEDP, ATMP, diethylene triamine pentamethylene phosphonic, HPMA, ROHM and deionized water composition; Wherein, the weight percent of each component is following:
HEDP: 5%～10%
ATMP: 10%～15%
Diethylene triamine pentamethylene phosphonic: 2%～6%
HPMA: 20%～30%
ROHM: 20%～30%
Deionized water: 19%～43%.
The index of a kind of electric power plant circulating water special corrosion and scale inhibitor of the present invention is following:
Phosphonate is (with PO
4 3-Meter) %:>=6.8
Phosphorous acid is (with PO
3 3-Meter) % :≤2.25
Ortho-phosphoric acid is (with PO
4 3-Meter) % :≤0.75
Solids content %: >=32.0
20 ℃ of (g/cm of density
3):>=1.15
PH (1% aqueous solution): 3.0 ± 1.5.
Compared with the prior art, the present invention has the advantages that: the use of the present invention plant circulating water Corrosion Inhibitor, can achieve the power plant cooling water runs high concentration, but also meet the corrosion resistance of water plants Xun ring fouling agent standard DL/806-2002 requirements.
Embodiment
Embodiment of the present invention below is provided.
Embodiment 1
One kind of plant Xun ring water corrosion inhibitors, configuration is made according to the following mass percentages:
HEDP: 5%
ATMP: 10%
Diethylene triamine pentamethylene phosphonic: 6%
HPMA: 30%
ROHM: 20%
Deionized water: 29%.
Embodiment 2 (most preferred embodiment)
One kind of plant Xun ring water corrosion inhibitors, configuration is made according to the following mass percentages:
HEDP: 8%
ATMP: 13%
Diethylene triamine pentamethylene phosphonic: 5%
HPMA: 24%
ROHM: 20%
Deionized water: 30%.
Embodiment 3
One kind of plant Xun ring water corrosion inhibitors, configuration is made according to the following mass percentages:
HEDP: 7%
ATMP: 12%
Diethylene triamine pentamethylene phosphonic: 5%
HPMA: 28 %
ROHM: 24%
Deionized water: 24%.
Embodiment 4
One kind of plant Xun ring water corrosion inhibitors, configuration is made according to the following mass percentages:
HEDP: 8%
ATMP: 11%
Diethylene triamine pentamethylene phosphonic: 5%
HPMA: 24 %
ROHM: 28%
Deionized water: 24%.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the present invention's design; Can also make some improvement and retouching, these improvement and retouching also should be regarded as in protection scope of the present invention.
Claims (3)
1. an electric power plant circulating water special corrosion and scale inhibitor comprises HEDP, ATMP, diethylene triamine pentamethylene phosphonic, HPMA, ROHM and deionized water composition, and the weight percent of each component is following:
HEDP: 5%～10%
ATMP: 10%～15%
Diethylene triamine pentamethylene phosphonic: 2%～6%
HPMA: 20%～30%
ROHM: 20%～30%
Deionized water: 19%～43%.
(2) as claimed in claim 1, wherein ring A plant Xun water corrosion inhibitors, characterized in that: weight percentage of each component is configured of the following:
HEDP: 8%
ATMP: 13%
Diethylene triamine pentamethylene phosphonic: 5%
HPMA: 24%
ROHM: 20%
Deionized water: 30%.
3. according to claims 1 or 2 described a kind of electric power plant circulating water special corrosion and scale inhibitors, it is characterized in that its physical index is following: phosphonate is (with PO4
3-Meter)>=6.8%; Phosphorous acid is (with PO3
3-Meter)≤2.25%; Ortho-phosphoric acid is (with PO4
3-Meter)≤0.75%; Solids content>=32.0%; 20 ℃ of (g/cm of density
3)>=1.15; PH (1% aqueous solution)=3.0 ± 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102439122A CN102730852A (en) | 2012-07-16 | 2012-07-16 | Special corrosion and scale inhibitor for power plant circulating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102439122A CN102730852A (en) | 2012-07-16 | 2012-07-16 | Special corrosion and scale inhibitor for power plant circulating water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102730852A true CN102730852A (en) | 2012-10-17 |
Family
ID=46987257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102439122A Pending CN102730852A (en) | 2012-07-16 | 2012-07-16 | Special corrosion and scale inhibitor for power plant circulating water |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030217A (en) * | 2012-12-25 | 2013-04-10 | 潍坊华强耐火材料有限公司 | Water conditioning agent and preparation method thereof |
| CN103663745A (en) * | 2013-12-11 | 2014-03-26 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103663741A (en) * | 2013-12-27 | 2014-03-26 | 常熟市第二热电有限公司 | Corrosion and scale inhibitor for water circulation system of thermal power plant and preparation method |
| CN103663746A (en) * | 2013-12-11 | 2014-03-26 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103708635A (en) * | 2013-12-11 | 2014-04-09 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN105482876A (en) * | 2015-12-18 | 2016-04-13 | 常熟市劲力工具有限公司 | Grinding fluid for high-speed steel slotting cutter machining |
| CN105573350A (en) * | 2015-12-28 | 2016-05-11 | 佛山市索奥斯玻璃技术有限公司 | Frequency automatic tracking control method of cooling fan of glass tempering furnace |
| CN105565518A (en) * | 2015-12-18 | 2016-05-11 | 昆明理工大学 | Composite water quality stabilizer for steelmaking converter turbid circulating water treatment |
| CN105642125A (en) * | 2015-12-31 | 2016-06-08 | 上海丰信环保科技有限公司 | Scale inhibitor for advanced treatment film of leachate |
| CN113321321A (en) * | 2021-05-20 | 2021-08-31 | 淄博爱迪毅环保技术有限公司 | Corrosion and scale inhibitor for aluminum pipe hot method seawater desalination and preparation process thereof |
| CN113754082A (en) * | 2021-09-28 | 2021-12-07 | 北京东方华盛科技有限公司 | Preparation method of multifunctional scale inhibitor |
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| JPS5579095A (en) * | 1978-12-08 | 1980-06-14 | Kurita Water Ind Ltd | Treating method for cooling water of waste incinerated ash |
| EP1935852A1 (en) * | 2006-12-18 | 2008-06-25 | Dalli-Werke GmbH & Co. KG | Water softener composition |
| CN102198982A (en) * | 2010-03-26 | 2011-09-28 | 中国石油天然气股份有限公司 | Scale and corrosion inhibitor for circulating cooling water |
| CN102452725A (en) * | 2010-10-20 | 2012-05-16 | 中国石油化工股份有限公司 | Composite scale and corrosion inhibitor and its application |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5579095A (en) * | 1978-12-08 | 1980-06-14 | Kurita Water Ind Ltd | Treating method for cooling water of waste incinerated ash |
| EP1935852A1 (en) * | 2006-12-18 | 2008-06-25 | Dalli-Werke GmbH & Co. KG | Water softener composition |
| CN102198982A (en) * | 2010-03-26 | 2011-09-28 | 中国石油天然气股份有限公司 | Scale and corrosion inhibitor for circulating cooling water |
| CN102452725A (en) * | 2010-10-20 | 2012-05-16 | 中国石油化工股份有限公司 | Composite scale and corrosion inhibitor and its application |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030217A (en) * | 2012-12-25 | 2013-04-10 | 潍坊华强耐火材料有限公司 | Water conditioning agent and preparation method thereof |
| CN103663746B (en) * | 2013-12-11 | 2016-08-17 | 国网山东省电力公司汶上县供电公司 | A kind of anti-incrustation corrosion inhibitor |
| CN103663745A (en) * | 2013-12-11 | 2014-03-26 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103663746A (en) * | 2013-12-11 | 2014-03-26 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103708635A (en) * | 2013-12-11 | 2014-04-09 | 山东华亚环保科技有限公司 | Scale and corrosion inhibitor |
| CN103708635B (en) * | 2013-12-11 | 2015-06-24 | 曲其飞 | Scale and corrosion inhibitor |
| CN103663741A (en) * | 2013-12-27 | 2014-03-26 | 常熟市第二热电有限公司 | Corrosion and scale inhibitor for water circulation system of thermal power plant and preparation method |
| CN105482876A (en) * | 2015-12-18 | 2016-04-13 | 常熟市劲力工具有限公司 | Grinding fluid for high-speed steel slotting cutter machining |
| CN105565518A (en) * | 2015-12-18 | 2016-05-11 | 昆明理工大学 | Composite water quality stabilizer for steelmaking converter turbid circulating water treatment |
| CN105573350A (en) * | 2015-12-28 | 2016-05-11 | 佛山市索奥斯玻璃技术有限公司 | Frequency automatic tracking control method of cooling fan of glass tempering furnace |
| CN105642125A (en) * | 2015-12-31 | 2016-06-08 | 上海丰信环保科技有限公司 | Scale inhibitor for advanced treatment film of leachate |
| CN113321321A (en) * | 2021-05-20 | 2021-08-31 | 淄博爱迪毅环保技术有限公司 | Corrosion and scale inhibitor for aluminum pipe hot method seawater desalination and preparation process thereof |
| CN113754082A (en) * | 2021-09-28 | 2021-12-07 | 北京东方华盛科技有限公司 | Preparation method of multifunctional scale inhibitor |
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Application publication date: 20121017 |