CN1754836A - Corrosion inhibitor of air-conditioner circulating water system and its using method - Google Patents
Corrosion inhibitor of air-conditioner circulating water system and its using method Download PDFInfo
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- CN1754836A CN1754836A CN 200410066822 CN200410066822A CN1754836A CN 1754836 A CN1754836 A CN 1754836A CN 200410066822 CN200410066822 CN 200410066822 CN 200410066822 A CN200410066822 A CN 200410066822A CN 1754836 A CN1754836 A CN 1754836A
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- air
- inhibiter
- circulating water
- water system
- conditioner circulating
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The present pertains to the field of chemical industry, wherein an antisludging agent for the circulating water system of air-conditioners is disclosed, which comprises several or all of hexamethylene tetramin, thiocarbamide, benzotrizaole, mercaptobenzothiazole, sodium silicate and water. The inhibitor for the circulating water system of air-conditioners has inhibiting property to various acids and metals.
Description
Technical field
The invention belongs to chemical field, relate to a kind of chemical inhibiter, more specifically, the present invention relates to a kind of inhibiter that is used for air-conditioner circulating water system.
Background technology
Though the existing inhibiter that is used for air-conditioner circulating water system has corrosion mitigating effect preferably, most of effective inhibiter all has specificity to a certain extent, promptly only at several metals of certain several acid rust inhibition is arranged.The system that is cleaned often is made up of multiple metal, and is improper if inhibiter is selected for use, and it will damage whole air-conditioning system.
The inventor develops a kind of inhibiter of being made up of polycomponent through further investigation, and it can have rust inhibition at multiple acid, many clocks metal, the corrosion inhibition rate height.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of inhibiter that is used for air-conditioner circulating water system, and described inhibiter is selected from a kind of or whole of urotropine, thiocarbamide, benzotriazole, mercaptobenzothiazole, water glass and water.
Further, the inhibiter of air-conditioner circulating water system of the present invention, its prescription that adopts is by weight percentage:
Urotropine: 14～28;
Thiocarbamide: 16～22;
Benzotriazole: 3～6;
Mercaptobenzothiazole: 4～10;
Water glass: 5～12;
Water: surplus.
Technical problem to be solved by this invention also is to provide the described using method that is used for the inhibiter of air-conditioner circulating water system, add the described inhibiter that is used for air-conditioner circulating water system from expansion tank or chemicals dosing plant or unlimited pond etc., concentration is controlled at about 1%; Continued the ON cycle water pump at least 1 hour, and made inhibiter concentration in total system even.
This product is a kind of inhibiter that is used in particular for air-conditioner circulating water system, is multiple metal material good inhibiter in the clean-out system medium.Urotropine is the good inhibiter of A3 steel in the prescription.Water glass is the good inhibiter of aluminium alloy, and the adding of water glass and its hydrolysis in water can both make the pH value of solution raise.Therefore when sodium silicate silicate is low; promoted the passivation of aluminium alloy; corrosion inhibition increases; when concentration further increased, the pH value improved, and passive film begins dissolving; corrosion inhibition weakens; when the concentration of water glass increased again, the 3 valency aluminum ions that silicate and anodic reaction generated generated the aluminium silicate salt conversion film and play the covering effect, and alloy matrix aluminum is protected.
The present invention can use aforesaid part or all of material; Preferable, the present invention uses above-mentioned all materials formulated.
Embodiment
Embodiment 1 using method that is used for the inhibiter of air-conditioner circulating water system of the present invention
The prescription of this test and Selection is: urotropine 20%, thiocarbamide 20%, benzotriazole 5%, mercaptobenzothiazole 5%, water glass 8%, surplus are water.
1, system is clean with flushing with clean water, and the ON cycle water pump is guaranteed the unobstructed no water clock of the recycle system.
2, add this product from expansion tank or chemicals dosing plant or unlimited pond etc., concentration is controlled at about 1%.
3, continued the ON cycle water pump at least 1 hour, guarantee that inhibiter concentration in total system is even.
4, add acidic cleaner.
After measured, through above-mentioned processing, the multiple systems of air-conditioner circulating water system has all obtained corrosion mitigating effect preferably, and can keep the relatively long inhibition time.
Claims (3)
1. an inhibiter that is used for air-conditioner circulating water system is characterized in that, described inhibiter is selected from the several or whole of urotropine, thiocarbamide, benzotriazole, mercaptobenzothiazole, water glass and water.
2. the inhibiter of air-conditioner circulating water system according to claim 1 is characterized in that, the prescription of employing is by weight percentage:
Urotropine: 14～28;
Thiocarbamide: 16～22;
Benzotriazole: 3～6;
Mercaptobenzothiazole: 4～10;
Water glass: 5～12;
Water: surplus.
3. the described using method that is used for the inhibiter of air-conditioner circulating water system of claim 1 is characterized in that, adds the described inhibiter that is used for air-conditioner circulating water system from expansion tank or chemicals dosing plant or unlimited pond etc., and concentration is controlled at about 1%; Continued the ON cycle water pump at least 1 hour, and made inhibiter concentration in total system even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066822 CN1754836A (en) | 2004-09-29 | 2004-09-29 | Corrosion inhibitor of air-conditioner circulating water system and its using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066822 CN1754836A (en) | 2004-09-29 | 2004-09-29 | Corrosion inhibitor of air-conditioner circulating water system and its using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1754836A true CN1754836A (en) | 2006-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066822 Pending CN1754836A (en) | 2004-09-29 | 2004-09-29 | Corrosion inhibitor of air-conditioner circulating water system and its using method |
Country Status (1)
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| CN (1) | CN1754836A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030228A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Circulating water treatment method adopting deionized water as supplement water |
| CN103214107A (en) * | 2013-04-10 | 2013-07-24 | 同济大学 | Silicate and polyamidoamine composite and environment-friendly corrosion inhibitor applied to deionized water circulating cooling system |
| CN107686176A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
| CN107686174A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
| CN107686175A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
-
2004
- 2004-09-29 CN CN 200410066822 patent/CN1754836A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030228A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Circulating water treatment method adopting deionized water as supplement water |
| CN103214107A (en) * | 2013-04-10 | 2013-07-24 | 同济大学 | Silicate and polyamidoamine composite and environment-friendly corrosion inhibitor applied to deionized water circulating cooling system |
| CN107686176A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
| CN107686174A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
| CN107686175A (en) * | 2016-08-05 | 2018-02-13 | 中国石油化工股份有限公司 | A kind of composite scale-inhibiting corrosion inhibitor and its application and the processing method of recirculated cooling water |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |