CN104099614A - Pre-filming technique for industrial recycling cooling water - Google Patents
Pre-filming technique for industrial recycling cooling water Download PDFInfo
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- CN104099614A CN104099614A CN201410372099.8A CN201410372099A CN104099614A CN 104099614 A CN104099614 A CN 104099614A CN 201410372099 A CN201410372099 A CN 201410372099A CN 104099614 A CN104099614 A CN 104099614A
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Abstract
The invention provides a pre-filming technique for industrial recycling cooling water, which is characterized in that phosphorous compounds, calciferous compounds, zinc salts and copolymers are used and added according to a certain proportion; operation is carried out under certain controlled conditions. The pre-filming technique can realize high-grade pre-filming on an industrial circulating pipeline and a condenser.
Description
Technical field
The invention provides a kind for the treatment of technology for the pre-film of industrial circulating water.
Background technology
Many hardwares such as interchanger, cooling tower etc. in industrial production all can cause because of long-term contact with corrosive medium and air metallic corrosion; Reach and keep design cooling efficiency in order to ensure cooling water system, must maintain all the time the clean operation of cooling apparatus and add suitable water treatment agent.But the brand-new cooling apparatus no matter turning round first; or operation cooling water system for many years; all contain the different oils of weight, foundry loam, mud and various corrosion product; in the time that they are cleaned out by physics or chemical process; system can be exposed metal primary colors; but above it, do not have any protection, at this moment just need to carry out pre-film processing to system.
Pre-film is processed and is called again based process, after system is cleaned, before normal operation, change the steps necessary of depths reason, the pre-film of circulating water system is in order to improve inhibition film-formation result, add higher inhibition dosage at the recirculated water driving initial stage, after to be filmed, reduce again drug concentration and maintain benefit film, it is so-called normal processing, this pre-film processing, its objective is on the metallic surface of wishing after cleaning and can form soon layer protecting film, prevent the first corrosion that corrosion speed is very large, practice also proves in same system, pass through pre-film and the equipment without pre-film, in the inhibiter situation with same, its corrosion mitigating effect differs greatly.
Summary of the invention
The object of this invention is to provide a kind for the treatment of technology for the pre-film of industrial circulating cooling water.Medicament used in the present invention is the conventional medicament of easily buying on the market, and this has also ensured the economic worth of invention.
The present invention uses P contained compound, calcium containing compound and zinc salt, carries out by a certain percentage dosing, and operates according to certain control condition, thereby industrial cycle water lines and condenser are carried out to pre-film.Wherein, the content of P contained compound in system is 90 ~ 200 mg/l, and the content of calcium containing compound in system is 10 ~ 100 mg/l, the content of zinc salt in system is 20 ~ 60 mg/l, during pre-film, need strictly to control pH 6 ~ 7, the pre-initial turbidity of film is less than 10, during pre-film, is less than 30.
The inventor is by a large amount of experiment discoveries, and the P contained compound that is applicable to this medicament comprises tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, sodium phosphate, one or more in SODIUM PHOSPHATE, MONOBASIC; Calcium containing compound comprises one or more in calcium oxide, calcium chloride, calcium hydroxide; Zinc salt comprises one or more in zinc chloride, zinc sulfate, Zinc Sulphate Heptahydrate, zinc oxide.
By numerous experiments, the inventor finds to use this technology to carry out pre-film processing, and the effect obtaining is well more a lot of than conventional pre-film effect.
Embodiment
Below in conjunction with specific embodiment, the present invention is carried out to detailed explanation.
Embodiment 1
Pure water is joined in 2L beaker, be put on spin etching coupon test instrument and be heated to 30 degree constant temperature, add the Calcium Chloride Powder Anhydrous of 200mg, uniform stirring, after mixing, add AA-HPA100mg, after half an hour, add the tripoly phosphate sodium STPP of 120mg, uniform stirring, after half an hour, add the Zinc Sulphate Heptahydrate of 80mg, after 10 minutes, put into carbon steel lacing film, then open rotary hanging plate, equipment operation was taken out lacing film after 48 hours, carry out titration with copper/saturated copper sulphate solution, the variable color time can reach 20 seconds.
Embodiment 2
Undertaken by the step of embodiment 1.With the Sodium hexametaphosphate 99 replacement tripoly phosphate sodium STPP of 300mg, after the pre-film of this experiment, titration time can reach 25 seconds.
Embodiment 3
Undertaken by the step of embodiment 2.Replace AA-HPA with 200mgAA-AMPS, after the pre-film of this experiment, titration time can reach 32 seconds.
Embodiment 4
Undertaken by the step of embodiment 1.200mg sodium phosphate replaces tripoly phosphate sodium STPP, and with 80mg zinc chloride replacement Zinc Sulphate Heptahydrate, after the pre-film of this experiment, titration time can reach 17 seconds.
Embodiment 5
Undertaken by the step of embodiment 3.With 200mg PESA replacement AA-AMPS, after the pre-film of this experiment, titration time can reach 28 seconds.
Claims (8)
1. the treatment technology for the pre-film of industrial circulating cooling water, it is characterized in that this process is used P contained compound, calcium containing compound, zinc salt, multipolymer, carry out by a certain percentage dosing, and operate according to certain control condition, thereby industrial cycle water lines and condenser are carried out to the pre-film of high-quality.
2. medicament according to claim 1, wherein, P contained compound comprises tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, sodium phosphate, one or more in SODIUM PHOSPHATE, MONOBASIC.
3. medicament according to claim 1, wherein, calcium containing compound comprises one or more in calcium oxide, calcium chloride, calcium hydroxide.
4. medicament according to claim 1, wherein, zinc salt comprises one or more in zinc chloride, zinc sulfate, Zinc Sulphate Heptahydrate, zinc oxide.
5. medicament according to claim 1, wherein, multipolymer comprises one or more of AA-AMPS, AA-HPA, PESA, PASP.
6. ratio according to claim 1, wherein, the chemical feeding quantity of calcium containing compound regulates and controls according to different quality, while guaranteeing pre-film, in water, calcium ion content is that 100mg/l(is in calcium carbonate).
7. ratio according to claim 1, wherein, P contained compound: zinc salt be 9:4 ~ 5:1 not etc., if P contained compound is Sodium hexametaphosphate 99, zinc salt is Zinc Sulphate Heptahydrate, ratio is 15:4, multipolymer adds separately 50 ~ 200mg/l.
8. condition according to claim 1, wherein, pH value is controlled at 5.0 ~ 7.0, and the pre-initial turbidity of film is less than 10, during pre-film, is less than 30, and the time is hot pre-film 48 hours, and the pre-film of cold conditions is 72 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372099.8A CN104099614A (en) | 2014-07-31 | 2014-07-31 | Pre-filming technique for industrial recycling cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372099.8A CN104099614A (en) | 2014-07-31 | 2014-07-31 | Pre-filming technique for industrial recycling cooling water |
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| CN104099614A true CN104099614A (en) | 2014-10-15 |
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| CN201410372099.8A Pending CN104099614A (en) | 2014-07-31 | 2014-07-31 | Pre-filming technique for industrial recycling cooling water |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975283A (en) * | 2015-06-13 | 2015-10-14 | 司徒建辉 | Composite pre-filming fluid for condenser copper tube |
| CN105112920A (en) * | 2015-08-14 | 2015-12-02 | 苏州康博电路科技有限公司 | Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent |
| CN105217806A (en) * | 2015-10-13 | 2016-01-06 | 武汉钢铁(集团)公司 | Circulating water corrosion inhibitor and application thereof |
| CN105602741A (en) * | 2015-12-29 | 2016-05-25 | 山东英联化学科技有限公司 | Environment-friendly sulfate scale cleaning agent |
| JP2016148094A (en) * | 2015-02-13 | 2016-08-18 | 栗田工業株式会社 | Initial treatment agent for circulating cooling water and initial treatment method of circulating cooling water |
| CN108085670A (en) * | 2017-12-19 | 2018-05-29 | 上海应用技术大学 | It is a kind of for low-phosphorous prefilming agent of circulating water cooling treatment and preparation method thereof |
| CN108085665A (en) * | 2017-12-30 | 2018-05-29 | 仙桃市信达化工有限责任公司 | A kind of infant industry circulating water system prefilming agent and preparation method thereof |
-
2014
- 2014-07-31 CN CN201410372099.8A patent/CN104099614A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016148094A (en) * | 2015-02-13 | 2016-08-18 | 栗田工業株式会社 | Initial treatment agent for circulating cooling water and initial treatment method of circulating cooling water |
| CN105884049A (en) * | 2015-02-13 | 2016-08-24 | 栗田工业株式会社 | Initial treatment agent for circulating cooling water and circulating cooling water system initial treatment method |
| CN105884049B (en) * | 2015-02-13 | 2019-05-28 | 栗田工业株式会社 | Recirculated cooling water initial stage inorganic agent and recirculating cooling water system initial stage processing method |
| CN104975283A (en) * | 2015-06-13 | 2015-10-14 | 司徒建辉 | Composite pre-filming fluid for condenser copper tube |
| CN105112920A (en) * | 2015-08-14 | 2015-12-02 | 苏州康博电路科技有限公司 | Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent |
| CN105217806A (en) * | 2015-10-13 | 2016-01-06 | 武汉钢铁(集团)公司 | Circulating water corrosion inhibitor and application thereof |
| CN105602741A (en) * | 2015-12-29 | 2016-05-25 | 山东英联化学科技有限公司 | Environment-friendly sulfate scale cleaning agent |
| CN108085670A (en) * | 2017-12-19 | 2018-05-29 | 上海应用技术大学 | It is a kind of for low-phosphorous prefilming agent of circulating water cooling treatment and preparation method thereof |
| CN108085665A (en) * | 2017-12-30 | 2018-05-29 | 仙桃市信达化工有限责任公司 | A kind of infant industry circulating water system prefilming agent and preparation method thereof |
| CN108085665B (en) * | 2017-12-30 | 2020-02-07 | 仙桃市信达化工有限责任公司 | Novel industrial circulating cold water system prefilming agent and preparation method thereof |
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Application publication date: 20141015 |
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| WD01 | Invention patent application deemed withdrawn after publication |