CN106430640B - Supermolecule corrosion and scale inhibitor for refrigerant water of central air conditioner and use method thereof - Google Patents
Supermolecule corrosion and scale inhibitor for refrigerant water of central air conditioner and use method thereof Download PDFInfo
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- CN106430640B CN106430640B CN201610722791.8A CN201610722791A CN106430640B CN 106430640 B CN106430640 B CN 106430640B CN 201610722791 A CN201610722791 A CN 201610722791A CN 106430640 B CN106430640 B CN 106430640B
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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
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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
- C02F5/12—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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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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
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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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
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Chemical & Material Sciences (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)
- Inorganic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a supermolecule corrosion and scale inhibitor for chilled water of a central air conditioner and a use method thereof, wherein the supermolecule corrosion and scale inhibitor comprises the following components in percentage by weight: 4-6% of fatty alcohol-polyoxyethylene ether, 5-10% of dodecyl dimethyl benzyl ammonium chloride, 4-6% of benzotriazole, 4-5% of cyanoacetic acid, 1-1.5% of linear alkyl sulfonic acid sodium salt, 2-3% of ethylene glycol, 1-1.5% of pyridoxine hydrochloride, 2-2.5% of disodium hydrogen phosphate and the balance of water. By adding the supermolecule corrosion and scale inhibitor into the heat supply refrigerant water, the cleaning efficiency and effect of the central air-conditioning refrigerant water system are improved.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a supermolecule corrosion and scale inhibitor for coolant water of a central air conditioner and a using method thereof.
Background
At present, central air conditioners are more and more commonly applied, and the operation condition of a refrigerant water system of the central air conditioners determines the cooling and heating effects to a great extent. The central air-conditioning refrigerant water system mainly comprises a cooling water system and a refrigerant water system, wherein the refrigerant water system directly influences the use effect of the air conditioner. The refrigerant water system is a closed system which uses water as a refrigerant medium to exchange energy with air, although the refrigerant water system is less in contact with the outside, an expansion water tank is arranged at the highest position of the whole system, so that the refrigerant water medium is still in contact with the air, dissolved oxygen and some nutrients enter the refrigerant water system, and in addition, the original dissolved oxygen of the refrigerant water generates oxygen corrosion and electrochemical corrosion, dirt deposition generated by corrosion influences heat transfer, and oxygen concentration electrochemical corrosion can be accelerated, so that perforation leakage of equipment can be seriously caused. Chinese patent No. 201610010685.7 discloses an energy-saving nursing agent for central air conditioner and the concrete components of the nursing agent, wherein, the scale formation and cleaning are mixed in the flowing process of refrigerant water, and the high-fine graphite powder in the nursing agent is used for lubricating the scale formation in the refrigerant water to avoid the unsmooth flowing. However, in the actual use process, the high-precision graphite powder is not soluble in water, the high-precision graphite powder is easy to cover the metal surface of the refrigerant water system with scales, and the scales are covered by the high-precision graphite powder to cause that the nursing agent cannot quickly and effectively clean the scales, so that a complete supermolecule protective film cannot be formed on the metal surface of the refrigerant water system, and the cleaning efficiency and the cleaning effect of the refrigerant water system of the central air conditioner are poor. The invention aims to solve the technical problem of how to design a cleaner with better cleaning efficiency and effect for a central air-conditioning refrigerant water system.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the supermolecule corrosion and scale inhibitor for the refrigerant water of the central air conditioner and the use method thereof are provided, and the cleaning efficiency and the cleaning effect of the refrigerant water system of the central air conditioner are improved by adding the supermolecule corrosion and scale inhibitor into the refrigerant water.
The invention provides a technical scheme that the supramolecular corrosion and scale inhibitor comprises, by weight, 4-6% of fatty alcohol-polyoxyethylene ether, 5-10% of dodecyl dimethyl benzyl ammonium chloride, 4-6% of benzotriazole, 4-5% of cyanoacetic acid, 1-1.5% of linear alkyl sulfonic acid sodium salt, 2% of ethylene glycol ~ 3, 1% of pyridoxine hydrochloride ~ 1.5.5%, 2-2.5% of disodium hydrogen phosphate, and the balance of water.
Further, the method also comprises the following steps: 3 to 6 percent of polyoxyethylene nonyl phenol ether, 4 to 5 percent of p-toluidine and 1 to 1.5 percent of ethylenediamine triacetic acid.
Further, the method also comprises the following steps: 2 to 3 percent of silicon potassium acid, 2 to 2.5 percent of polyacrylic acid, 0.5 to 1 percent of dodecyl dimethyl benzyl ammonium chloride disodium hydrogen phosphate, 0.5 to 1 percent of dihydroxyethyl high-carbon fatty amide, 0.3 to 0.8 percent of alkyl benzene sulfonic acid and 1.2 to 1.5 percent of dimethyl benzene sodium sulfonate.
Further, the method also comprises the following steps: 3 to 5 percent of tetrapotassium pyrophosphate.
The invention also provides a use method of the central air-conditioning chilled water supramolecular corrosion and scale inhibitor, wherein the central air-conditioning chilled water supramolecular corrosion and scale inhibitor adopts the central air-conditioning chilled water supramolecular corrosion and scale inhibitor; wherein the filling amount of the refrigerant water in the central air conditioner is L; the using method comprises the following steps: the method comprises the steps of directly adding 0.1L of filling amount of the central air conditioner coolant water supramolecular corrosion and scale inhibitor into coolant water of a central air conditioner, taking a water sample from a drain pipe of the central air conditioner for observation after the central air conditioner operates for 3-5 days, if the coolant water is dark brown or black, completely draining the coolant water by the central air conditioner, replacing with new coolant water, adding 0.05L of filling amount of the central air conditioner coolant water supramolecular corrosion and scale inhibitor again, and if the coolant water is light brown or light brown, adding no water or medicine, and directly operating the central air conditioner.
Compared with the prior art, the invention has the advantages and positive effects that: according to the supermolecule corrosion and scale inhibitor for the cold water of the central air conditioner, the fatty alcohol-polyoxyethylene ether and the dodecyl dimethyl benzyl ammonium chloride are added into the supermolecule corrosion and scale inhibitor, so that rust on the surface of metal can be cleaned, insoluble scale can be preliminarily washed, and the corrosion inhibition of the benzotriazole is performed, so that the corrosion resistance of the cleaning agent is ensured, and the metal is not damaged; importantly, the glycol and the pyridoxine hydrochloride are matched with the disodium hydrogen phosphate to replace the graphite powder which is difficult to dissolve, the disodium hydrogen phosphate is soluble in water and insoluble in alcohol, the glycol and the pyridoxine hydrochloride are soluble in water to form liquid with lubricating effect, and scales mixed in refrigerant water can flow smoothly; the cyanoacetic acid has a catalytic effect, accelerates the coordinated assembly of components such as linear alkyl sodium sulfonate and the like, is combined into a complex organized polymer, forms a layer of supramolecular film on the surface of metal to achieve the effect of delaying scaling, and improves the cleaning efficiency and effect of a central air-conditioning refrigerant water system by adding the supramolecular corrosion and scale inhibitor into the heat supply refrigerant water to achieve the effects of zero corrosion, zero scaling and zero pollution discharge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the 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.
The invention provides a supermolecule corrosion and scale inhibitor for chilled water of a central air conditioner, which comprises the following components, by weight, 4-6% of fatty alcohol-polyoxyethylene ether, 5-10% of dodecyl dimethyl benzyl ammonium chloride, 4-6% of benzotriazole, 4-5% of cyanoacetic acid, 1-1.5% of linear alkyl sulfonic acid sodium salt, 2% of ethylene glycol ~ 3, 1% of pyridoxine hydrochloride ~ 1.5.5%, 2-2.5% of disodium hydrogen phosphate, and the balance of water.
Specifically, the fatty alcohol-polyoxyethylene ether in the supramolecular corrosion and scale inhibitor is matched with dodecyl dimethyl benzyl ammonium chloride to clean rust on the surface of metal, adsorb and decompose water scale, and primarily wash insoluble scale, and benzotriazole performs corrosion inhibition to ensure the corrosion resistance of the cleaning agent and does not damage the metal; meanwhile, under the catalytic action of cyanoacetic acid, the coordinated assembly of components such as phosphorus linear alkyl sodium sulfonate and the like can be accelerated, and after various iron rust, water scale, mud scale and other dirt on the surface of the metal are removed, a layer of supramolecular film is formed on the surface of the metal, so that the corrosion and scale inhibition effects are achieved. Importantly, the glycol and the pyridoxine hydrochloride are matched with the disodium hydrogen phosphate to replace the difficultly-dissolved graphite powder, the disodium hydrogen phosphate is soluble in water and insoluble in alcohol, the glycol and the pyridoxine hydrochloride are soluble in water to form a liquid with a lubricating effect, and scales mixed in refrigerant water can flow smoothly.
Further, the supramolecular corrosion and scale inhibitor also comprises: 3 to 6 percent of polyoxyethylene nonyl phenol ether, 4 to 5 percent of p-toluidine and 1 to 1.5 percent of ethylenediamine triacetic acid. Specifically, the added polyoxyethylene nonylphenol ether can have good chemical stability after reacting with p-toluidine, has ideal synergistic effect, has excellent chelating capacity for a plurality of metal ions such as calcium, magnesium, copper and the like, and improves the anti-scaling performance and corrosion inhibition capacity of the polyoxyethylene nonylphenol ether; the added ethylenediamine triacetic acid adsorbs, bonds and decomposes dirt in a closed circulation flow path formed by the heat supply refrigerant water, so that waste water does not need to be discharged, dissolved oxygen in water can be prevented from contacting with the surface of metal to corrode the metal, and the aims of zero corrosion, zero scaling and zero pollution discharge of related equipment are fulfilled. Preferably, the supramolecular corrosion and scale inhibitor further comprises: 2 to 3 percent of silicon potassium acid, 2 to 2.5 percent of polyacrylic acid, 0.5 to 1 percent of dodecyl dimethyl benzyl ammonium chloride disodium hydrogen phosphate, 0.5 to 1 percent of dihydroxyethyl high-carbon fatty amide, 0.3 to 0.8 percent of alkyl benzene sulfonic acid and 1.2 to 1.5 percent of dimethyl benzene sodium sulfonate. Specifically, the potassium silicate and the polyacrylic acid can form stable compounds with metal ions in the refrigerant water, and have excellent decomposition effect on calcium carbonate and calcium hydroxide in the water, so that scales formed on the metal surface can be more effectively decomposed, and simultaneously, the scale formation can be favorably slowed down; the dodecyl dimethyl benzyl ammonium chloride disodium hydrogen phosphate, the dihydroxyethyl high-carbon fatty acid amide, the alkyl benzene sulfonic acid and the dimethyl benzene sulfonate further play a role in component synergism, are more favorable for realizing supermolecule self-assembly, and meet the requirement of forming a layer of supermolecule film on the metal surface under a high-temperature environment to achieve the effect of delaying scaling. In addition, the supermolecule corrosion and scale inhibitor also comprises: the tetrapotassium pyrophosphate accounts for 3-5 percent, can soften hard water, improve the cleaning capacity and remove dirt, and can be used for realizing more comprehensive and effective removal of scale through synergistic action with fatty alcohol-polyoxyethylene ether and dodecyl dimethyl benzyl ammonium chloride.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The supermolecule corrosion and scale inhibitor for the refrigerant water of the central air conditioner is characterized by comprising, by weight, 4-6% of fatty alcohol-polyoxyethylene ether, 5-10% of dodecyl dimethyl benzyl ammonium chloride, 4-6% of benzotriazole, 4-5% of cyanoacetic acid, 1-1.5% of linear alkyl sulfonic acid sodium salt, 2% of ethylene glycol ~ 3%, 1% of pyridoxine hydrochloride ~ 1.5.5%, 2-2.5% of disodium hydrogen phosphate and the balance of water.
2. The supramolecular corrosion and scale inhibitor for chilled water of central air conditioners as claimed in claim 1, further comprising: 3 to 6 percent of polyoxyethylene nonyl phenol ether, 4 to 5 percent of p-toluidine and 1 to 1.5 percent of ethylenediamine triacetic acid.
3. The supramolecular corrosion and scale inhibitor for chilled water of central air conditioners as claimed in claim 1, further comprising: 3 to 5 percent of tetrapotassium pyrophosphate.
4. A method for using the supermolecule corrosion and scale inhibitor of the chilled water of the central air conditioner is characterized in that the supermolecule corrosion and scale inhibitor of the chilled water of the central air conditioner adopts the supermolecule corrosion and scale inhibitor of the chilled water of the central air conditioner as claimed in any one of claims 1 to 3; wherein the filling amount of the refrigerant water in the central air conditioner is L; the using method comprises the following steps: the method comprises the steps of directly adding 0.1L of filling amount of the central air conditioner coolant water supramolecular corrosion and scale inhibitor into coolant water of a central air conditioner, taking a water sample from a drain pipe of the central air conditioner for observation after the central air conditioner operates for 3-5 days, if the coolant water is dark brown or black, completely draining the coolant water by the central air conditioner, replacing with new coolant water, adding 0.05L of filling amount of the central air conditioner coolant water supramolecular corrosion and scale inhibitor again, and if the coolant water is light brown or light brown, adding no water or medicine, and directly operating the central air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610722791.8A CN106430640B (en) | 2016-08-15 | 2016-08-15 | Supermolecule corrosion and scale inhibitor for refrigerant water of central air conditioner and use method thereof |
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| CN201610722791.8A CN106430640B (en) | 2016-08-15 | 2016-08-15 | Supermolecule corrosion and scale inhibitor for refrigerant water of central air conditioner and use method thereof |
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| CN106430640A CN106430640A (en) | 2017-02-22 |
| CN106430640B true CN106430640B (en) | 2019-12-24 |
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| CN113652210B (en) * | 2021-06-28 | 2024-04-02 | 中国船舶重工集团公司第七一八研究所 | Low-conductivity long-acting cooling liquid and preparation method thereof |
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| JP4936772B2 (en) * | 2006-04-10 | 2012-05-23 | 三菱電機株式会社 | Water treatment method |
| CN102583786A (en) * | 2011-01-24 | 2012-07-18 | 童建国 | NJTJ series central air conditioner water treatment disinfectant formula |
| CN103693765A (en) * | 2014-01-03 | 2014-04-02 | 广州市特种承压设备检测研究院 | Non-phosphorus corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof |
| CN105502705A (en) * | 2016-01-08 | 2016-04-20 | 青岛洁能环保有限公司 | Reinforced heat-transfer agent for heating system |
| CN105621636A (en) * | 2016-01-08 | 2016-06-01 | 青岛洁能环保有限公司 | Energy-saving nursing agent of central air conditioning |
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2016
- 2016-08-15 CN CN201610722791.8A patent/CN106430640B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4936772B2 (en) * | 2006-04-10 | 2012-05-23 | 三菱電機株式会社 | Water treatment method |
| CN101086065A (en) * | 2007-06-13 | 2007-12-12 | 长沙市永峰水质处理服务有限公司 | Descaling agent for cleaning central air conditioner main machine |
| CN102583786A (en) * | 2011-01-24 | 2012-07-18 | 童建国 | NJTJ series central air conditioner water treatment disinfectant formula |
| CN103693765A (en) * | 2014-01-03 | 2014-04-02 | 广州市特种承压设备检测研究院 | Non-phosphorus corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof |
| CN105502705A (en) * | 2016-01-08 | 2016-04-20 | 青岛洁能环保有限公司 | Reinforced heat-transfer agent for heating system |
| CN105621636A (en) * | 2016-01-08 | 2016-06-01 | 青岛洁能环保有限公司 | Energy-saving nursing agent of central air conditioning |
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Effective date of registration: 20240827 Address after: No. 7 Yuyuan 6th Road, Qingda Industrial Park, Jihongtan Street, Chengyang District, Qingdao City, Shandong Province, 266000 Patentee after: Zhongxi Environmental Protection (Shandong) Co.,Ltd. Country or region after: China Address before: 266111 Shandong Qingjieneng Environmental Protection Co.,Ltd., No. 2 Yuyuan 6th Road, Qingda Industrial Park, Chengyang District, Qingdao City, Shandong Province Patentee before: Shandong Qingjineng Environmental Protection Co.,Ltd. Country or region before: China |
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