CN105112920A - Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent - Google Patents
Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent Download PDFInfo
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- CN105112920A CN105112920A CN201510501735.7A CN201510501735A CN105112920A CN 105112920 A CN105112920 A CN 105112920A CN 201510501735 A CN201510501735 A CN 201510501735A CN 105112920 A CN105112920 A CN 105112920A
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Abstract
The invention discloses a thermal-state non-stop cleaning prefilming agent of a circulating water system and a cleaning prefilming method of the thermal-state non-stop cleaning prefilming agent. The prefilming method comprises the following steps that (1) the prefilming agent is prepared from, by mass, 30%-40% of sodium hexametaphosphate, 10%-15% of zinc sulfate, 3%-6% of amino trimethylene phosphonic acid, 5%-7% of hydroxyethyl acrylate, 5%-10% of lactose, 5%-10% of sodium tripolyphosphate, 4%-6% of anhydrous calcium chloride and the balance water, and according to the material adding sequence, the anhydrous calcium chloride is added into water, so that the calcium ion concentration is increased, the sodium hexametaphosphate, the zinc sulfate, the amino trimethylene phosphonic acid, the hydroxyethyl acrylate and the lactose are added, and the sodium tripolyphosphate is added, so that the PH value is adjusted to be 5.5-6.5; (2) 260 mg/L -320 mg/L of the cleaning prefilming agent is added before the circulating water system operates; and (3) the circulating water system operates, and the flowing speed of circulating water is controlled to be 1.2 m/S-1.7 m/S. According to the cleaning prefilming agent, harm to the environment is small, and the PH value does not need to be adjusted again in use; the use amount of circulating water per unit volume is small, and use cost is low.
Description
Technical field
The present invention relates to the cleaning of a kind of circulating water system prefilming agent, the specifically hot cleaning on line prefilming agent of a kind of circulating water system.The present invention breathe out relate to above-mentioned cleaning prefilming agent wash prefilming method.
Background technology
Prefilming agent is in the preprocessing process of water treatment, can be pre-formed a class pharmaceutical chemicals of protective membrane in metallic surface.The object of pre-film suppresses corrosion at use chemical, effectively can remove remaining rust deposite, incrustation scale, form the composite metal membrane of the special current potential of one deck in metallic surface, the current potential of equilibrium system material, effectively prevent galvanic corrosion and underdeposit corrosion, simultaneously the work-ing life of extension device.
Containing a large amount of phosphorus in the prefilming agent of current use, a large amount of uses of phosphorus can bring very large harm to environment.Meanwhile, at present in circulating water system, in order to reach good effect, prefilming agent usage quantity is larger.
Summary of the invention
The object of this invention is to provide a kind of circulating water system cleaning prefilming agent of relative environmental protection.Present invention also offers a kind of cleaning prefilming method cleaning prefilming agent simultaneously.
In order to arrive above-mentioned technical purpose, technical scheme of the present invention is:
The hot cleaning on line prefilming agent of a kind of circulating water system, comprises following weight percent composition:
Described zinc sulfate is Zinc Sulphate Heptahydrate.
A cleaning prefilming method for the hot cleaning on line prefilming agent of circulating water system, draw together following steps:
(1) make cleaning prefilming agent: Xiang Shuizhong and add anhydrous U-Ramin MC, improve calcium ion concn, add Sodium hexametaphosphate 99, zinc sulfate, Amino Trimethylene Phosphonic Acid, Hydroxyethyl acrylate and lactose, add tripoly phosphate sodium STPP and regulate maintenance pH value 5.5 ~ 6.5;
(2) before circulating water system is run, in recirculated water, add cleaning prefilming agent, add-on is 260 ~ 320mg/L;
(3) circulating water system is run, and controlled circulation water flow velocity is 1.2 ~ 1.7m/S.
Cleaning prefilming agent of the present invention is little to environmental hazard, does not need again to regulate pH value during use, and the recirculated water usage quantity of unit volume is less, and use cost is low.
Embodiment
Embodiment 1
(1) cleaning prefilming agent is made, according to following mass percent component preparation:
Feeding sequence: Xiang Shuizhong adds anhydrous U-Ramin MC, improves calcium ion concn, adds Sodium hexametaphosphate 99, zinc sulfate, Amino Trimethylene Phosphonic Acid, Hydroxyethyl acrylate and lactose, adds tripoly phosphate sodium STPP and regulates maintenance pH value 5.5 ~ 6.5;
(2) before circulating water system is run, in recirculated water, add cleaning prefilming agent, add-on is 300mg/L;
(3) circulating water system is run, and controlled circulation water flow velocity is 1.5m/S.
Embodiment 2
(1) cleaning prefilming agent is made, according to following mass percent component preparation:
Feeding sequence: Xiang Shuizhong adds anhydrous U-Ramin MC, improves calcium ion concn, adds Sodium hexametaphosphate 99, zinc sulfate, Amino Trimethylene Phosphonic Acid, Hydroxyethyl acrylate and lactose, adds tripoly phosphate sodium STPP and regulates maintenance pH value 5.5 ~ 6.5;
(2) before circulating water system is run, in recirculated water, add cleaning prefilming agent, add-on is 260mg/L;
(3) circulating water system is run, and controlled circulation water flow velocity is 1.7m/S.
Embodiment 3
(1) cleaning prefilming agent is made, according to following mass percent component preparation:
Feeding sequence: Xiang Shuizhong adds anhydrous U-Ramin MC, improves calcium ion concn, adds Sodium hexametaphosphate 99, zinc sulfate, Amino Trimethylene Phosphonic Acid, Hydroxyethyl acrylate and lactose, adds tripoly phosphate sodium STPP and regulates maintenance pH value 5.5 ~ 6.5;
(2) before circulating water system is run, in recirculated water, add cleaning prefilming agent, add-on is 260mg/L;
(3) circulating water system is run, and controlled circulation water flow velocity is 1.2m/S.
Above-described embodiment does not limit the present invention in any way, and the technical scheme that the mode that every employing is equal to replacement or equivalent transformation obtains all drops in protection scope of the present invention.
Claims (3)
1. the hot cleaning on line prefilming agent of circulating water system, is characterized in that comprising following weight percent composition:
2. the hot cleaning on line prefilming agent of a kind of circulating water system according to claim 1, is characterized in that: described zinc sulfate is Zinc Sulphate Heptahydrate.
3. the cleaning prefilming method of the hot cleaning on line prefilming agent of a kind of circulating water system according to claim 1, is characterized in that comprising the following steps:
(1) make cleaning prefilming agent: Xiang Shuizhong and add anhydrous U-Ramin MC, improve calcium ion concn, add Sodium hexametaphosphate 99, zinc sulfate, Amino Trimethylene Phosphonic Acid, Hydroxyethyl acrylate and lactose, add tripoly phosphate sodium STPP and regulate maintenance pH value 5.5 ~ 6.5;
(2) before circulating water system is run, in recirculated water, add cleaning prefilming agent, add-on is 260 ~ 320mg/L;
(3) circulating water system is run, and controlled circulation water flow velocity is 1.2 ~ 1.7m/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501735.7A CN105112920A (en) | 2015-08-14 | 2015-08-14 | Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501735.7A CN105112920A (en) | 2015-08-14 | 2015-08-14 | Thermal-state non-stop cleaning prefilming agent of circulating water system and cleaning prefilming method of thermal-state non-stop cleaning prefilming agent |
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| CN105112920A true CN105112920A (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611647A (en) * | 2018-05-22 | 2018-10-02 | 西安晶达化工有限公司 | A kind of cleaning prefilming agent and the preparation method and application thereof |
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| CN1715445A (en) * | 2004-06-30 | 2006-01-04 | 上海万森水处理有限公司 | Precoating agent for metal surface |
| CN102080233A (en) * | 2010-12-23 | 2011-06-01 | 常州市科威精细化工有限公司 | Phosphorus-free prefilming agent for prefilming treatment of circulating cooling water system and application method thereof |
| CN103332797A (en) * | 2013-06-18 | 2013-10-02 | 中国科学院生态环境研究中心 | Circulating cooling water non-phosphorus corrosion and scale inhibitor and application thereof |
| CN104099614A (en) * | 2014-07-31 | 2014-10-15 | 威海翔宇环保科技有限公司 | Pre-filming technique for industrial recycling cooling water |
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2015
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Patent Citations (5)
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| CN1512968A (en) * | 2001-04-02 | 2004-07-14 | �̵°��ɶ��ƹ�˾ | Corrosion inhibitor for aqueous systems |
| CN1715445A (en) * | 2004-06-30 | 2006-01-04 | 上海万森水处理有限公司 | Precoating agent for metal surface |
| CN102080233A (en) * | 2010-12-23 | 2011-06-01 | 常州市科威精细化工有限公司 | Phosphorus-free prefilming agent for prefilming treatment of circulating cooling water system and application method thereof |
| CN103332797A (en) * | 2013-06-18 | 2013-10-02 | 中国科学院生态环境研究中心 | Circulating cooling water non-phosphorus corrosion and scale inhibitor and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611647A (en) * | 2018-05-22 | 2018-10-02 | 西安晶达化工有限公司 | A kind of cleaning prefilming agent and the preparation method and application thereof |
| CN108611647B (en) * | 2018-05-22 | 2019-11-22 | 西安晶达化工有限公司 | A kind of cleaning prefilming agent and the preparation method and application thereof |
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