CN104841674A - Method for cleaning cooler pipeline - Google Patents
Method for cleaning cooler pipeline Download PDFInfo
- Publication number
- CN104841674A CN104841674A CN201410053187.1A CN201410053187A CN104841674A CN 104841674 A CN104841674 A CN 104841674A CN 201410053187 A CN201410053187 A CN 201410053187A CN 104841674 A CN104841674 A CN 104841674A
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- CN
- China
- Prior art keywords
- cooler
- pipeline
- cleaning
- cleaning method
- cooler pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a method for cleaning a cooler pipeline. The method comprises the steps that (1) acid liquid containing an acid cleaning agent and a corrosion inhibitor enters the pipeline through a water inlet of the pipeline, positive loop circulating heating and flushing is conducted for three to four hours, and then the acid liquid is continuously added to conduct negative loop heating and flushing for three to four hours; (2) the acid liquid is discharged; (3) a cleaning pump is started to conduct flushing for four to five hours with alkaline liquor containing passivator, wherein the PH value of the alkaline liquor is 10-12; (4) after the alkaline liquor is discharged, the pipeline is flushed by high-pressure clear water. According to the method for cleaning the cooler pipeline, incrustation on the cooler pipeline can be effectively removed, the safety of the cooler pipeline is guaranteed, and the emission of cleaning effluent meets the environmental protection standard.
Description
Technical field
The present invention relates to cooler field, particularly relate to a kind of cleaning method of cooler pipeline.
Background technology
Cooler is widely used in the cooling operations in each field.In the use procedure of cooler, because water treatment facilities run improper or fault, Water-quality control is not up to standard, and the magnesium hydrate precipitate thing being decomposed into calcium carbonate after making the calcium in water, magnesium, carbonate preheating bores knot on cooler pipeline, forms incrustation scale.Because the heat conductivility of incrustation scale is poor, cause the reduction of cooler cooling effectiveness, thus the effect of impact cooling.Traditional descaling rinsing method adopts the cleaning agent such as hydrochloric acid of chloride ion-containing as cleansing medium, but pickling produces deep-etching to cooling pipe for a long time, thus shorten pipeline life, even can cause danger.
Therefore, the cleaning method of urgently a kind of improvement, to ensure the safety of equipment while obtaining good descaling rinsing effect.
Summary of the invention
The object of the present invention is to provide a kind of cleaning method of cooler pipeline, it effectively can remove the incrustation scale on cooling pipe, ensures the safety of cooling pipe, and the discharge of cleaning waste liquid meets environmental protection standard.
For achieving the above object, the cleaning method of cooler pipeline of the present invention, comprises the following steps:
(1) acid solution containing acidic cleaner and corrosion inhibiter enters from the water inlet of pipeline, adds heat flush 3 ~ 4h with positive circuit cycle; Then continue to add acid solution and rinse 3 ~ 4h with inverse loop heating;
(2) acid solution is discharged;
(3) containing passivator and pH value be start in the alkali lye of 10 ~ 12 scavenging pump rinse 4 ~ 5h;
(4) rinse with high pressure clear water after discharging alkali lye.
The cleaning method of cooler pipeline of the present invention adopts and just carries out pickling against closed circuit; alkali lye is utilized to carry out passivation flushing after pickling terminates; thus protective conduit is not by serious erosion while high-efficient cleaning scale removal, the metal surface after cleaning is clean, and descaling rate is greater than 95%.And the discharge of cleaning waste liquid meets environmental protection standard.
Preferably, also comprise: on cooler, fill water and detect water quality, after water quality reaching standard, perform described step (1) again.
Preferably, the temperature in described step (1) controls at 35 ~ 45 DEG C.
Preferably, the pH value of the alkali lye in described step (3) is 10.05 ~ 11.40.
Preferably, the positive circuit cycle in described step (1) rinses 3h, reverse back road circulation flushing 4h.
Preferably, the washing time in described step (3) is 4.5h.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the flow chart of an embodiment of the cleaning method of cooling pipe of the present invention.
Detailed description of the invention
Be described further below in conjunction with the cleaning method of drawings and Examples to cooling pipe of the present invention, but therefore do not limit the present invention.
Please refer to Fig. 1, an embodiment of the cleaning method of cooler pipeline of the present invention at least comprises the following steps:
101, the acid solution containing acidic cleaner and corrosion inhibiter enters from the water inlet of pipeline, adds heat flush 3 ~ 4h with positive circuit cycle; Then continue to add acid solution and rinse 3 ~ 4h with inverse loop heating;
102, discharge acid solution;
103, containing passivator and pH value be start in the alkali lye of 10 ~ 12 scavenging pump rinse 4 ~ 5h;
104, rinse with high pressure clear water after discharge alkali lye.
Preferably, in a step 101, this acidic cleaner can be CK-1 cleaning agent, and this corrosion inhibiter can be copper inhibitor MBT, copper inhibitor BTA, copper inhibitor TTA etc.
Particularly, when step 101 carries out the cleaning of positive loop heating, keeping system runs well, and temperature controls, between 35 ~ 45 DEG C, to add CK-1 cleaning agent and corrosion inhibiter successively, and forward circulation is cleaned after 3 hours and terminated.Then switched system is inverse circuit cycle, continues complex acid and adds quantitative acid solution, add heat flush 4 hours.In the most of the time of the leading portion of whole acid cleaning process, scale removal in purging system is swift in response, therefore acid solution consumption is very fast, within the leading portion long period, acid solution mass fraction is in less than 3%, along with proceeding of scale removal reaction, incrustation scale is progressively removed, so reduce in the later stage scale removal reaction speed of acid cleaning process, acid solution mass fraction in system rises gradually and is stabilized in about 3% along with adding of acid solution, and now pickling is reached home.
After pickling terminates, acid solution is discharged, and then startup scavenging pump carries out water cleaning, adds alkali and passivator simultaneously, make intrasystem alkali lye pH value be 10.05 ~ 11.40 in water.Pipeline carries out the passivation of 4.5 hours in alkali lye, thus protective conduit and other equipment.
After passivation terminates, PH adjustment is carried out to alkali lye and discharges.Rinse hydroecium, condenser pipe, circulating water pipeline etc. with high pressure clear water subsequently and carry out desilting purified treatment.
As a preferred embodiment, before step 101, cooler is filled water and samples in delivery port and detect water quality, when water quality clarification produces a desired effect, just set up just inverse circulation.
The cleaning method of cooler pipeline of the present invention carries out between cooler and cleaning equipment, and interim Guan Yiyu cleaning equipment of connecting in the water inlet of cooler communicates, and water outlet arranges closure plate, thus forms forward and inverse loop with cleaning equipment.And the turnover pipeline of cleaning equipment is equipped with Pressure gauge, thermometer and probe tube.
In sum; the cleaning method of cooler pipeline of the present invention adopts and just carries out pickling against closed circuit, utilizes alkali lye to carry out passivation flushing after pickling terminates, thus protective conduit is not subject to serious erosion while high-efficient cleaning scale removal; metal surface after cleaning is clean, and descaling rate is greater than 95%.And the discharge of cleaning waste liquid meets environmental protection standard.
Above disclosedly be only preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (6)
1. a cleaning method for cooler pipeline, comprises the following steps:
(1) acid solution containing acidic cleaner and corrosion inhibiter enters from the water inlet of pipeline, adds heat flush 3 ~ 4h with positive circuit cycle; Then continue to add acid solution and rinse 3 ~ 4h with inverse loop heating;
(2) acid solution is discharged;
(3) containing passivator and pH value be start in the alkali lye of 10 ~ 12 scavenging pump rinse 4 ~ 5h;
(4) rinse with high pressure clear water after discharging alkali lye.
2. cooler pipeline cleaning method as claimed in claim 1, is characterized in that, also comprise: on cooler, fill water and detect water quality, perform described step (1) after water quality reaching standard again.
3. cooler pipeline cleaning method as claimed in claim 1, is characterized in that: the temperature in described step (1) controls at 35 ~ 45 DEG C.
4. cooler pipeline cleaning method as claimed in claim 1, is characterized in that: the pH value of the alkali lye in described step (3) is 10.05 ~ 11.40.
5. cooler pipeline cleaning method as claimed in claim 1, is characterized in that: the positive circuit cycle in described step (1) rinses 3h, reverse back road circulation flushing 4h.
6. cooler pipeline cleaning method as claimed in claim 1, is characterized in that: the washing time in described step (3) is 4.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053187.1A CN104841674A (en) | 2014-02-17 | 2014-02-17 | Method for cleaning cooler pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053187.1A CN104841674A (en) | 2014-02-17 | 2014-02-17 | Method for cleaning cooler pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841674A true CN104841674A (en) | 2015-08-19 |
Family
ID=53841874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410053187.1A Pending CN104841674A (en) | 2014-02-17 | 2014-02-17 | Method for cleaning cooler pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104841674A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949570A (en) * | 2014-03-26 | 2015-09-30 | 东莞新科技术研究开发有限公司 | Method for washing boiler |
| CN105215010A (en) * | 2015-08-27 | 2016-01-06 | 江西铜业股份有限公司 | A kind of equipment inner chamber incrustation scale cleaning machine and cleaning |
| CN107321724A (en) * | 2017-05-26 | 2017-11-07 | 株洲冶炼集团股份有限公司 | A kind of manner of cleaning up of aiutage |
| CN108160625A (en) * | 2018-01-04 | 2018-06-15 | 山东潍焦集团薛城能源有限公司 | A kind of method of cork dry quenching disposable dust remover water cold sleeve on-line cleaning |
| CN109185592A (en) * | 2018-10-29 | 2019-01-11 | 江苏亿超工程塑料有限公司 | A kind of engineering plastics elbow of dirt-proof structure and its application |
| CN111229746A (en) * | 2020-02-25 | 2020-06-05 | 甘肃陇工智能清洗科技有限公司 | Chemical cleaning process for wall-hanging furnace system |
| CN111256516A (en) * | 2019-12-24 | 2020-06-09 | 常熟浦发第二热电能源有限公司 | Online cleaning method for open-type circulating condenser |
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| EP0892084A1 (en) * | 1997-07-14 | 1999-01-20 | Kitz Corporation | Method for preventing contamination by lead from metallic piping devices |
| US20060166847A1 (en) * | 2005-01-27 | 2006-07-27 | Advanced Technology Materials, Inc. | Compositions for processing of semiconductor substrates |
| CN102465307A (en) * | 2010-11-08 | 2012-05-23 | 天津市耀新科技发展有限公司 | Stainless steel pipeline pickling method |
| CN102519302A (en) * | 2011-12-14 | 2012-06-27 | 无锡中彩科技有限公司 | Cleaning method for heat exchanger |
| CN102746958A (en) * | 2012-07-20 | 2012-10-24 | 北京雅迪力特航空化学制品有限公司 | Matched cleaning agent for vacuum drainage pipelines of airplane toilets and preparation method and cleaning process of matched cleaning agent |
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2014
- 2014-02-17 CN CN201410053187.1A patent/CN104841674A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0892084A1 (en) * | 1997-07-14 | 1999-01-20 | Kitz Corporation | Method for preventing contamination by lead from metallic piping devices |
| US20060166847A1 (en) * | 2005-01-27 | 2006-07-27 | Advanced Technology Materials, Inc. | Compositions for processing of semiconductor substrates |
| CN102465307A (en) * | 2010-11-08 | 2012-05-23 | 天津市耀新科技发展有限公司 | Stainless steel pipeline pickling method |
| CN102519302A (en) * | 2011-12-14 | 2012-06-27 | 无锡中彩科技有限公司 | Cleaning method for heat exchanger |
| CN102746958A (en) * | 2012-07-20 | 2012-10-24 | 北京雅迪力特航空化学制品有限公司 | Matched cleaning agent for vacuum drainage pipelines of airplane toilets and preparation method and cleaning process of matched cleaning agent |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949570A (en) * | 2014-03-26 | 2015-09-30 | 东莞新科技术研究开发有限公司 | Method for washing boiler |
| CN104949570B (en) * | 2014-03-26 | 2019-02-26 | 东莞新科技术研究开发有限公司 | The cleaning method of boiler |
| CN105215010A (en) * | 2015-08-27 | 2016-01-06 | 江西铜业股份有限公司 | A kind of equipment inner chamber incrustation scale cleaning machine and cleaning |
| CN107321724A (en) * | 2017-05-26 | 2017-11-07 | 株洲冶炼集团股份有限公司 | A kind of manner of cleaning up of aiutage |
| CN108160625A (en) * | 2018-01-04 | 2018-06-15 | 山东潍焦集团薛城能源有限公司 | A kind of method of cork dry quenching disposable dust remover water cold sleeve on-line cleaning |
| CN109185592A (en) * | 2018-10-29 | 2019-01-11 | 江苏亿超工程塑料有限公司 | A kind of engineering plastics elbow of dirt-proof structure and its application |
| CN111256516A (en) * | 2019-12-24 | 2020-06-09 | 常熟浦发第二热电能源有限公司 | Online cleaning method for open-type circulating condenser |
| CN111229746A (en) * | 2020-02-25 | 2020-06-05 | 甘肃陇工智能清洗科技有限公司 | Chemical cleaning process for wall-hanging furnace system |
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Application publication date: 20150819 |
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