CN112645458A - Circulating water scale inhibitor and solid product thereof - Google Patents
Circulating water scale inhibitor and solid product thereof Download PDFInfo
- Publication number
- CN112645458A CN112645458A CN202010897891.0A CN202010897891A CN112645458A CN 112645458 A CN112645458 A CN 112645458A CN 202010897891 A CN202010897891 A CN 202010897891A CN 112645458 A CN112645458 A CN 112645458A
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- Prior art keywords
- circulating water
- scale inhibitor
- water
- solid product
- water scale
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
- C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a circulating water scale inhibitor which at least comprises the following raw materials in percentage by mass: 2-phosphate-1, 2, 4-tricarboxylic acid butane (10-14%), hydroxyethylidene diphosphonic acid (0.3-0.5%), acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer (10-20%), zinc sulfate heptahydrate (12-16%), benzotriazole (1-2%), anhydrous ethanol (1-2%), fluorescent tracer (0.1%) and pure water (the rest); the solid product is a solid matter from which pure water is removed; the circulating water scale inhibitor and the solid product thereof meet the national environmental protection requirements, so that the phosphorus content in the circulating water is low, the problem of system bacterial and algae breeding can be effectively controlled, and the concentration of the medicament in the water can be rapidly detected by detecting the content of the fluorescein in the medicament or the circulating water by adding the fluorescent tracer.
Description
Technical Field
The invention relates to a scale inhibitor, in particular to a circulating water scale inhibitor and a solid product thereof.
Background
At present, domestic garbage and the like recovered from cities are treated by adopting an incineration power generation technology which is the most economic and effective treatment method at present through a plurality of technical comparisons, but leachate generated by the domestic garbage, because of complex components, high heavy metal content and the like, biochemical treatment and membrane treatment are mostly adopted at present, the final effluent is the reclaimed water reaching the standard, the heavy metal and the hardness in the water are basically removed by the membrane treatment of the water, but the contents of the conductivity, the COD and the like are relatively high, because of the large amount, the water is usually reused as part of make-up water of the circulating cooling water system in the garbage power plant, and after the water enters the circulating water system, the balance of a circulating water system which takes industrial tap water or industrial water as water supplement in the prior art can be broken, the concentration ratio of the system cannot be estimated, the bacterial-algae production of the system is more serious due to relatively high COD, and the corrosivity of the system is more serious.
At present, the circulating cooling water is treated by adding corrosion and scale inhibitor, sterilization algicide and the like to carry out systematic corrosion, scale inhibition, sterilization and algae removal treatment, but most of the current corrosion and scale inhibitor formulas are phosphorus formulas which do not meet the environmental protection requirement or pure phosphorus-free formulas.
The phosphorus system formula which does not meet the environmental protection requirement usually has the total phosphorus content of 2-4ppm (calculated as P043 < - >) in circulating water, the effect of the series of formulas on scale inhibition and corrosion inhibition is ideal, but because the phosphorus content is too high, COD (chemical oxygen demand) in water is relatively high, phosphorus can be used as a nutrient source of system bacteria and algae, and the added bactericide cannot effectively control the propagation of the system bacteria and algae in the use process.
The pure phosphorus-free formula is the most environmentally-friendly formula at present, but as is well known, the formula of the system is poor in scale inhibition and corrosion inhibition, cannot meet the running water quality under the condition of 3-5 times concentration of a power plant, the concentration multiple of the system must be reduced, so that the waste of water sources is caused, and the corrosion of equipment cannot be completely and effectively controlled.
In the conventional formula, in the aspect of detecting the content of the medicament, the phosphorus system mainly controls the concentration of the medicament in water by detecting total phosphorus in water, but the detection is relatively complex and takes a long time, and a pure phosphorus-free formula cannot detect the concentration of the medicament in water by a simple method.
Disclosure of Invention
The invention aims to solve the problems and provide a circulating water scale inhibitor and a solid product thereof.
The invention realizes the purpose through the following technical scheme:
a circulating water scale inhibitor at least comprises the following raw materials in percentage by mass:
further, the scale inhibitor also comprises a fluorescent tracer, and the mass percent of the fluorescent tracer is 0.1%.
As a preference, the preferred proportions of the components are:
providing another preference, the preferred proportions of the components are:
a solid product of a circulating water scale inhibitor is characterized by at least comprising the following raw materials in percentage by mass:
the solid product is required to be mixed with pure water for use, and the mixing mass ratio is 344: 656.
A solid product of a circulating water scale inhibitor is characterized by at least comprising the following raw materials in percentage by mass:
the solid product is required to be mixed with pure water for use, and the mixing mass ratio is 545: 455.
The invention has the beneficial effects that:
the circulating water scale inhibitor and the solid product thereof meet the national environmental protection requirements, so that the phosphorus content in the circulating water is low, the problem of system bacterial and algae breeding can be effectively controlled, and the concentration of the medicament in the water can be rapidly detected by detecting the content of the fluorescein in the medicament or the circulating water by adding the fluorescent tracer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiment is only one embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A circulating water scale inhibitor at least comprises the following raw materials in percentage by mass: 2-phosphate-1, 2, 4-tricarboxylic acid butane (10-14%), hydroxyethylidene diphosphonic acid (0.3-0.5%), acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer (10-20%), zinc sulfate heptahydrate (12-16%), benzotriazole (1-2%), anhydrous ethanol (1-2%), fluorescent tracer (0.1%) and pure water (the rest).
The agent meets the requirement of a phosphine-free scale inhibitor in a scale inhibitor corrosion inhibitor of thermal power plant circulating water DLT806-2013 standard, simultaneously, the total phosphorus content in the formula disclosed by the invention is less than 2%, the total phosphorus content in circulating cooling water is controlled to be 0.3-0.4 (counted by P), and a carbon steel corrosion inhibitor and a copper corrosion inhibitor are added, so that the agent has an excellent scale inhibition effect, and can also achieve the effect of a traditional high-phosphorus system formula in the aspects of carbon steel and copper corrosion inhibition.
And a fluorescent tracer is added, and the concentration of the medicament in water can be rapidly detected by detecting the content of fluorescein in the medicament or circulating water.
And can cooperate with specialized check out test set and medicine adding apparatus, unite and control and realize the medicament detects the function of automatic dosing on line, make the addition of medicament more rational, the water quality control is more scientific.
Aiming at the initial formula, two optimal proportioning schemes are obtained through experiments, and the two optimal proportioning schemes are as follows:
(1) 2-phosphate-1, 2, 4-tricarboxylic acid butane (10%), hydroxyethylidene diphosphonic acid (0.3%), acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer (10%), zinc sulfate heptahydrate (12%), benzotriazole (1%) absolute ethyl alcohol (1%), fluorescent tracer (0.1%) and pure water (the rest).
(2) 2-phosphate-1, 2, 4-tricarboxylic acid butane (14%), hydroxyethylidene diphosphonic acid (0.4%), acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer (20%), zinc sulfate heptahydrate (16%), benzotriazole (2%) absolute ethyl alcohol (2%), fluorescent tracer (0.1%) and pure water (the rest).
However, in actual work, if the blending of the components of the chelating agent with pure water is completed in advance, there are many inconveniences, such as: the transportation cost is increased, the loading difficulty is increased, the requirements of transportation vehicle conditions and road conditions are increased, and the like, so the chelating agent can be prepared into a solid product firstly, the solid product is transported to an area needing to be used, and the liquid chelating agent is obtained by blending the solid product with pure water according to a certain proportion.
A solid product based on liquid circulating water scale inhibitor, according to the optimal proportioning scheme, obtains 3 solid products, and the weight ratio is:
(1) 2-phosphoric acid-1, 2, 4-tricarboxylic acid butane (100/344), hydroxyethylidene diphosphonic acid (3/344), acrylic acid-2-methyl-2-acrylamide propanesulfonic acid copolymer (100/344), zinc sulfate heptahydrate (120/344), benzotriazole (10/344), absolute ethyl alcohol (10/344) and a fluorescent tracer (1/344), wherein the fluorescent tracer is used after being mixed and diluted with pure water when in use, and the mixing mass ratio is 344: 656.
(2) 2-phosphoric acid-1, 2, 4-tricarboxylic acid butane (140/545), hydroxyethylidene diphosphonic acid (4/545), acrylic acid-2-methyl-2-acrylamide propanesulfonic acid copolymer (200/545), zinc sulfate heptahydrate (160/545), benzotriazole (20/545), absolute ethyl alcohol (20/545) and a fluorescent tracer (1/545), wherein the fluorescent tracer is mixed with pure water for dilution when in use, and the mixing mass ratio is 545: 455.
In the description above, references to "one embodiment," "an embodiment," "one example," "an example," etc., indicate that the embodiment or example so described may include a particular feature, structure, characteristic, property, element, or limitation, but every embodiment or example does not necessarily include the particular feature, structure, characteristic, property, element, or limitation. Moreover, repeated use of the phrase "in accordance with an embodiment of the present application" although it may possibly refer to the same embodiment, does not necessarily refer to the same embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The circulating water scale inhibitor is characterized by at least comprising the following raw materials in percentage by mass:
2. the circulating water scale inhibitor as claimed in claim 1, further comprising a fluorescent tracer, wherein the fluorescent tracer is 0.1% by mass.
3. The circulating water scale inhibitor as claimed in claim 2, wherein the preferable proportion of each component is as follows:
4. the circulating water scale inhibitor as claimed in claim 2, wherein the preferable proportion of each component is as follows:
5. a solid product based on the circulating water scale inhibitor of claim 3 is characterized by at least comprising the following raw materials in percentage by mass:
the solid product is required to be mixed with pure water for use, and the mixing mass ratio is 344: 656.
6. A solid product based on the circulating water scale inhibitor of claim 4 is characterized by at least comprising the following raw materials in percentage by mass:
the solid product is required to be mixed with pure water for use, and the mixing mass ratio is 545: 455.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897891.0A CN112645458A (en) | 2020-08-31 | 2020-08-31 | Circulating water scale inhibitor and solid product thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897891.0A CN112645458A (en) | 2020-08-31 | 2020-08-31 | Circulating water scale inhibitor and solid product thereof |
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| Publication Number | Publication Date |
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| CN112645458A true CN112645458A (en) | 2021-04-13 |
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| CN202010897891.0A Pending CN112645458A (en) | 2020-08-31 | 2020-08-31 | Circulating water scale inhibitor and solid product thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781028A (en) * | 2010-02-09 | 2010-07-21 | 南京工大开元化学有限公司 | High-efficiency low-phosphorous corrosion and scale inhibition dispersant as well as preparation method and application thereof |
| JP2010202893A (en) * | 2009-02-27 | 2010-09-16 | Hakuto Co Ltd | Liquid composition for preventing corrosion and scaling, and method for preventing corrosion and scaling |
| CN102674570A (en) * | 2011-03-15 | 2012-09-19 | 中国石油化工股份有限公司 | Composite low-phosphorus corrosion and scale inhibitor and application thereof |
| CN105347518A (en) * | 2015-12-15 | 2016-02-24 | 攀枝花钢城集团瑞天安全环保有限公司 | Corrosion and scale inhibitor for industrial circulating water and preparation method thereof |
| US20170306506A1 (en) * | 2016-04-14 | 2017-10-26 | Nch Corporation | Composition and Method for Inhibiting Corrosion and Scale |
| CN109110935A (en) * | 2018-09-12 | 2019-01-01 | 广东华欣环保科技有限公司 | A kind of corrosion inhibiting and descaling agent and preparation method thereof for low-hardness low-alkalinity |
| CN109987725A (en) * | 2019-04-23 | 2019-07-09 | 宁夏佳仕德水处理科技有限公司 | It is a kind of using industrial wastewater as the zero-emission controlling agent of circulating water system |
-
2020
- 2020-08-31 CN CN202010897891.0A patent/CN112645458A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010202893A (en) * | 2009-02-27 | 2010-09-16 | Hakuto Co Ltd | Liquid composition for preventing corrosion and scaling, and method for preventing corrosion and scaling |
| CN101781028A (en) * | 2010-02-09 | 2010-07-21 | 南京工大开元化学有限公司 | High-efficiency low-phosphorous corrosion and scale inhibition dispersant as well as preparation method and application thereof |
| CN102674570A (en) * | 2011-03-15 | 2012-09-19 | 中国石油化工股份有限公司 | Composite low-phosphorus corrosion and scale inhibitor and application thereof |
| CN105347518A (en) * | 2015-12-15 | 2016-02-24 | 攀枝花钢城集团瑞天安全环保有限公司 | Corrosion and scale inhibitor for industrial circulating water and preparation method thereof |
| US20170306506A1 (en) * | 2016-04-14 | 2017-10-26 | Nch Corporation | Composition and Method for Inhibiting Corrosion and Scale |
| CN109110935A (en) * | 2018-09-12 | 2019-01-01 | 广东华欣环保科技有限公司 | A kind of corrosion inhibiting and descaling agent and preparation method thereof for low-hardness low-alkalinity |
| CN109987725A (en) * | 2019-04-23 | 2019-07-09 | 宁夏佳仕德水处理科技有限公司 | It is a kind of using industrial wastewater as the zero-emission controlling agent of circulating water system |
Non-Patent Citations (1)
| Title |
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| 侯纯扬: "《中国近海海洋 海水资源开发利用》", 30 November 2012, 海洋出版社 * |
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Application publication date: 20210413 |