CN107630211B - A kind of radiator inhibits the processing method of blocking corrosion and sand holes - Google Patents
A kind of radiator inhibits the processing method of blocking corrosion and sand holes Download PDFInfo
- Publication number
- CN107630211B CN107630211B CN201710887061.8A CN201710887061A CN107630211B CN 107630211 B CN107630211 B CN 107630211B CN 201710887061 A CN201710887061 A CN 201710887061A CN 107630211 B CN107630211 B CN 107630211B
- Authority
- CN
- China
- Prior art keywords
- pickling
- water
- radiator
- rinsed
- parts
- Prior art date
- 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.)
- Active
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses the processing methods that a kind of radiator inhibits blocking corrosion and sand holes, and this method is repaired by pickling, grinding and white picking is smooth by radiator inner wall cleaning, and corrosion inhibiter is added later and prefilming agent handles radiator inner wall.The method can form layer protecting film by radiator inner wall sand holes reparation and in radiator inner wall, can effectively prevent radiator inner wall and be corroded and due to radiator interior conduit blocking caused by corroding.
Description
Technical field
The invention belongs to heating equipment protection technology field, specifically a kind of radiator inhibits the place of blocking corrosion and sand holes
Reason method.
Background technique
Northern Part of China winter uses collective's heating system, and radiator is main heating equipment, and hot water flows through heating
Piece distributes heat to house, improves room temperature, achievees the purpose that heat supply in winter.Radiator is mostly cast iron, mild steel
Etc. materials, radiator inner wall easily corrode with hot water contacts for a long time, or even blocking makes the radiator service life shorten.Cast iron is warm
The production of gas piece is simple, low in cost, is the current most common radiator, but easily leave sand holes on surface in its casting process, warms up
Wall thickness is smaller at gas piece sand holes, if the problems such as corrosion easily leads to perforation, broken wall occurs at sand holes, its service life is made to shorten.
Summary of the invention
Goal of the invention: the purpose of the present invention is it is rotten to provide a kind of radiator inhibition blocking for the deficiency in current technology
The processing method of erosion and sand holes can effectively repair sand holes in radiator and use corrosion inhibiter and prefilming agent in radiator inner wall shape
It at layer protecting film, prevents radiator inner wall from generating corrosion, promotes radiator service life.
Technical solution: to achieve the above object, the present invention discloses a kind of radiator and inhibits blocking corrosion and the processing of sand holes
Method includes the following steps:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 70-75 DEG C, and pickling time is 15-20 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2It is dense
Degree is 45~70g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；Pickling
It is first rinsed with water, then is rinsed with high pressure water after the completion, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 65-70 DEG C, and pickling time is 10-12 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 50
~65g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling
It is first rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH to 9 is adjusted, inner surface is aoxidized
Activation；It by activator and activation corrosion inhibiter emptying after activation, is first rinsed after the completion with water, then the pH for being washed till water with high pressure water flushing small
Terminate when 8, is put into drying oven drying；
E, pre- film: being injected configured prefilming agent aqueous solution in radiator pipe by laxative pump, and adjusting pH value is 9-10,
Pre- film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ
Terminate to rinse when S/cm, pre- membrane process is repaired in entire pickling to be terminated.
The utility model has the advantages that radiator of the present invention inhibits the processing method of blocking corrosion and sand holes first to carry out to radiator
Pickling, the defects of clearing up to radiator inner wall surface oxide, dirt etc., make sand holes, are easy to be found.Using pickling
When liquid carries out pickling, by pickling solution, in 45 degree of injections, to make the liquid level of pickling solution evoke surge wave with radiator inner wall, be conducive to
Radiator inner wall oxide object and dirt etc. fall off, while pickling solution and the inner wall shock sprayed are separated into fluid spills, are pickling
Liquid contacted with radiator inner wall it is more abundant, without dead angle, when pickling in control radiator pickling solution FeCl2Concentration be 45~
70g/L prevents pickling solution from excessively injuring radiator tube wall.After the completion of pickling, first heating inside pipe wall is rinsed with water, then
It is rinsed using high pressure water, the ph value of the water of detection outflow radiator, terminates to clean, prevent when pH value is greater than 5 when flushing
Cleaning is not thorough, and the liquid acidic remained in radiator is excessive to damage operator.
Radiator after pickling for the first time, the defects of inner wall surface oxide and dirt etc. are cleaned, sand holes quilt
It is exposed, is repaired by grinding and remove the defects of sand holes, while white picking is carried out to radiator inner wall, will grinding
The oxide and dirt that mill generates when repairing are cleaned out.The FeCl of pickling solution in radiator is controlled when white picking2Concentration
For 50~65g/L, prevent pickling solution from excessively injuring radiator tube wall.
Radiator inner wall is handled using corrosion inhibiter and prefilming agent respectively after pickling.At corrosion inhibiter
Activator is added simultaneously when reason, and adjusts the numerical value that ph value is reacted to optimum, accelerates reaction.Corrosion inhibiter handles radiator inner wall
After, first heating inside pipe wall is rinsed with water, is then rinsed using high pressure water, detection outflow radiator when flushing
Water ph value, terminate to clean when pH value is less than 8, prevent cleaning be not thorough, remain in liquid basified excessive in radiator
Operator is damaged.
When reusing prefilming agent and handling radiator inner wall, after prefilming agent is injected radiator, ph value is adjusted to 9-
10, which is the ph value range that optimum prefilming agent is reacted with radiator inner wall.It can be in radiator using prefilming agent
Inner wall forms layer protecting film, can effectively prevent in radiator in use, inner wall corrodes.After pre- film, by prefilming agent
Aqueous solution emptying, is first rinsed, then rinsed with high pressure water with water, terminates to rinse as conductivity≤2000 μ S/cm, and tap water is conductive
Rate is usually 125-2000 μ S/cm, will increase its conductivity when there is other medicaments in tap water, and in cleaning, detection outflow is warm
The water flow of gas piece can terminate to rinse when its conductivity≤2000 μ S/cm illustrate that prefilming agent has been cleaned out completely.
The processing method for inhibiting blocking corrosion and sand holes using the radiator, can be complete by radiator inner wall sand holes defect
It exposes and is repaired, radiator inner wall is handled using corrosion inhibiter and prefilming agent after reparation, in radiator inner wall
Surface forms layer protecting film, and can effectively prevent radiator, inner wall corrodes when in use, extends radiator service life.
Specific embodiment
Below with specific embodiment, the present invention is furture elucidated, and the technical means disclosed in the embodiments of the present invention not only limits
Technological means disclosed in above embodiment, also includes technical solutions formed by any combination of the above technical features.
Embodiment 1
A kind of radiator described in the present embodiment inhibits the processing method of blocking corrosion and sand holes, and step includes:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 71 DEG C, and pickling time is 19 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
50g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling first
It is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 66 DEG C, and pickling time is 11 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 53g/L；Acid
Washing lotion with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；It is first rinsed with water after the completion of pickling,
It is rinsed again with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH value is adjusted to 9, inner surface carries out oxygen
Change activation；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then the pH of water is washed till with high pressure water flushing
Terminate when less than 8, is put into drying oven drying；
E, pre- film: being injected configured prefilming agent aqueous solution in radiator pipe by laxative pump, and adjusting pH value is 9.5,
Pre- film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ
Terminate to rinse when S/cm, pre- membrane process is repaired in entire pickling to be terminated.
Embodiment 2
A kind of radiator described in the present embodiment inhibits the processing method of blocking corrosion and sand holes, and step includes:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 72 DEG C, and pickling time is 18 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
55g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling first
It is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 67 DEG C, and pickling time is 11 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 56g/L；Acid
Washing lotion with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；It is first rinsed with water after the completion of pickling,
It is rinsed again with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH value is adjusted to 9, inner surface carries out oxygen
Change activation；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then the pH of water is washed till with high pressure water flushing
Terminate when less than 8, is put into drying oven drying；
E, pre- film: being injected configured prefilming agent aqueous solution in radiator pipe by laxative pump, and adjusting pH value is 9.5,
Pre- film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ
Terminate to rinse when S/cm, pre- membrane process is repaired in entire pickling to be terminated.
Embodiment 3
A kind of radiator described in the present embodiment inhibits the processing method of blocking corrosion and sand holes, and step includes:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 73 DEG C, and pickling time is 17 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
60g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling first
It is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 68 DEG C, and pickling time is 11 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 59g/L；Acid
Washing lotion with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；It is first rinsed with water after the completion of pickling,
It is rinsed again with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH value is adjusted to 9, inner surface carries out oxygen
Change activation；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then the pH of water is washed till with high pressure water flushing
Terminate when less than 8, is put into drying oven drying；
E, pre- film: being injected configured prefilming agent aqueous solution in radiator pipe by laxative pump, and adjusting pH value is 9.5,
Pre- film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ
Terminate to rinse when S/cm, pre- membrane process is repaired in entire pickling to be terminated.
Embodiment 4
A kind of radiator described in the present embodiment inhibits the processing method of blocking corrosion and sand holes, and step includes:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 74 DEG C, and pickling time is 16 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
65g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling first
It is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 69 DEG C, and pickling time is 11 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 62g/L；Acid
Washing lotion with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；It is first rinsed with water after the completion of pickling,
It is rinsed again with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH value is adjusted to 9, inner surface carries out oxygen
Change activation；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then the pH of water is washed till with high pressure water flushing
Terminate when less than 8, is put into drying oven drying；
E, pre- film: being injected configured prefilming agent aqueous solution in radiator pipe by laxative pump, and adjusting pH value is 9.5,
Pre- film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ
Terminate to rinse when S/cm, pre- membrane process is repaired in entire pickling to be terminated.
Embodiment 5
A kind of radiator described in the present embodiment inhibits the processing method of blocking corrosion and sand holes, and step includes:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water uniformly mix system with 15 parts of concentration
Standby pickling solution, temperature is 75 DEG C, and pickling time is 20 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
60g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling first
It is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 65 DEG C, and pickling time is 10 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 55g/L；Acid
Washing lotion with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；It is first rinsed with water after the completion of pickling,
It is rinsed again with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH value is adjusted to 9, inner surface carries out oxygen
Change activation；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then the pH of water is washed till with high pressure water flushing
Terminate when less than 8, is put into drying oven drying；
E, pre- film: configured prefilming agent aqueous solution is injected in radiator pipe by laxative pump, adjusting pH value is 9, in advance
Film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ S/
Terminate to rinse when cm, pre- membrane process is repaired in entire pickling to be terminated.
Claims (3)
1. the processing method that a kind of radiator inhibits blocking corrosion and sand holes, it is characterised in that it the following steps are included:
A, pickling for the first time: being that 30% technical hydrochloric acid, 10 parts of nitric acid and 30 parts of water are uniformly mixed with acid with 15 parts of concentration
Washing lotion, temperature are 70-75 DEG C, and pickling time is 15-20 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is
45~70g/L；Pickling solution with radiator tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；Pickling is complete
Cheng Houxian is rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
B, it is sanded and repairs: the radiator tube wall Jing Guo pickling for the first time is checked, find out the area with blocking corrosion and sand holes
Domain carries out sand milling reparation, is then rinsed with high pressure water by the inner surface repaired is sanded；
C, white picking: being that 30% technical hydrochloric acid, 5 parts of nitric acid and 25 parts of water are uniformly mixed with pickling with 10 parts of concentration
Liquid, temperature are 65-70 DEG C, and pickling time is 10-12 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 50
~65g/L；Pickling solution with the tube wall, in 45 degree of injections, to make the liquid level of the pickling solution evoke surge wave；After the completion of pickling
It is first rinsed with water, then is rinsed with high pressure water, until the pH of water reaches 5 or more, flushing terminates；
D, by activator and activation corrosion inhibiter aqueous solution injection radiator pipe, pH to 9 is adjusted, inner surface carries out oxidation work
Change；By activator and activation corrosion inhibiter emptying after activation, first rinsed after the completion with water, then be less than with the pH that high pressure water flushing is washed till water
Terminate when 8, is put into drying oven drying；
E, pre- film: configured prefilming agent aqueous solution is injected in radiator pipe by laxative pump, adjusting pH value is 9-10, in advance
Film；It is washed after pre- film: prefilming agent aqueous solution being vented, is first rinsed with water, then is rinsed with high pressure water, as conductivity≤2000 μ S/
Terminate to rinse when cm, pre- membrane process is repaired in entire pickling to be terminated.
2. a kind of radiator according to claim 1 inhibits the processing method of blocking corrosion and sand holes, the temperature of pickling for the first time
Degree is 75 DEG C, and pickling time is 20 minutes, and the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 60g/L.
3. a kind of radiator according to claim 1 or 2 inhibits the processing method of blocking corrosion and sand holes, white picking
Temperature be 65 DEG C, pickling time be 10 minutes, the FeCl of the pickling solution is controlled in acid cleaning process2Concentration is 55g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887061.8A CN107630211B (en) | 2017-09-21 | 2017-09-21 | A kind of radiator inhibits the processing method of blocking corrosion and sand holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887061.8A CN107630211B (en) | 2017-09-21 | 2017-09-21 | A kind of radiator inhibits the processing method of blocking corrosion and sand holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107630211A CN107630211A (en) | 2018-01-26 |
| CN107630211B true CN107630211B (en) | 2019-04-09 |
Family
ID=61104031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710887061.8A Active CN107630211B (en) | 2017-09-21 | 2017-09-21 | A kind of radiator inhibits the processing method of blocking corrosion and sand holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107630211B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392284A (en) * | 2002-07-09 | 2003-01-22 | 华中科技大学 | process for hot immersion plating iron and steel with aluminium-zinc alloy |
| CN1435670A (en) * | 2002-01-28 | 2003-08-13 | 中国石油化工股份有限公司巴陵分公司 | Industrial air conditioner surface cooler in-line chemical cleaning method |
| CN103510097A (en) * | 2012-06-26 | 2014-01-15 | 杭州冠洁工业清洗水处理科技有限公司 | Low-corrosion and high-cleanness chemical cleaning method for condenser |
| CN103555477A (en) * | 2013-11-06 | 2014-02-05 | 李继水 | Pipeline cleaning agent, preparation method thereof and cleaning method utilizing pipeline cleaning agent |
| CN104005040A (en) * | 2014-04-23 | 2014-08-27 | 山东中实易通集团有限公司 | Method for solving obstruction of hollow lead of generator stator bar and inhibiting corrosion of hollow lead |
| CN107059030A (en) * | 2017-05-02 | 2017-08-18 | 西安热工研究院有限公司 | A kind of power station superheater or reheater oxide skin chemical cleaning system and method |
-
2017
- 2017-09-21 CN CN201710887061.8A patent/CN107630211B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435670A (en) * | 2002-01-28 | 2003-08-13 | 中国石油化工股份有限公司巴陵分公司 | Industrial air conditioner surface cooler in-line chemical cleaning method |
| CN1392284A (en) * | 2002-07-09 | 2003-01-22 | 华中科技大学 | process for hot immersion plating iron and steel with aluminium-zinc alloy |
| CN103510097A (en) * | 2012-06-26 | 2014-01-15 | 杭州冠洁工业清洗水处理科技有限公司 | Low-corrosion and high-cleanness chemical cleaning method for condenser |
| CN103555477A (en) * | 2013-11-06 | 2014-02-05 | 李继水 | Pipeline cleaning agent, preparation method thereof and cleaning method utilizing pipeline cleaning agent |
| CN104005040A (en) * | 2014-04-23 | 2014-08-27 | 山东中实易通集团有限公司 | Method for solving obstruction of hollow lead of generator stator bar and inhibiting corrosion of hollow lead |
| CN107059030A (en) * | 2017-05-02 | 2017-08-18 | 西安热工研究院有限公司 | A kind of power station superheater or reheater oxide skin chemical cleaning system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107630211A (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104406452B (en) | The cleaning method of nickel heat exchanger incrustation scale | |
| CN104328371A (en) | Hot dip galvanizing technique for implementing corrosion resistance and rust resistance of steel tube | |
| CN104959353A (en) | Water-saving cooling type online washing method | |
| CN114032555A (en) | Cleaning process for medium pipeline of continuous casting equipment | |
| CN108051278A (en) | Steel curved beam etching pit device | |
| CN107448273B (en) | Pipeline system flushing equipment and chemical cleaning method for gas turbine oil system | |
| CN107630211B (en) | A kind of radiator inhibits the processing method of blocking corrosion and sand holes | |
| CN103194761B (en) | The clean-out system of iron-smelting blast furnace water cooling wall on-line on-load local cleaning and application thereof | |
| CN103464419A (en) | Novel ultrasonic salt bath composite cleaning machine | |
| CN103663375B (en) | The exempting from of a kind of preconcentrator nozzle disassembles online dredger and dredging method | |
| WO2013056489A1 (en) | Process for low temperature chemical cleaning and passivation in boiler of thermal power plant with edta | |
| WO2014146599A1 (en) | Water treatment apparatus for use with water cooling tower | |
| CN203177715U (en) | Heat exchanger enabling user to easily overhaul and detect leakage | |
| CN205279758U (en) | Intermediate frequency furnace cooling water circulation device | |
| CN104874571A (en) | System for cleaning high-intensity magnetic separator coils | |
| CN104438243A (en) | Method for removing scars in inner pipes of one-pipe piping preheater | |
| CN210138759U (en) | Pipeline cleaning spray head | |
| CN104327784B (en) | Many components high resiliency condenser fluid sealant | |
| CN104259156B (en) | Stoving oven supply lines automatic cleaning system and purging method | |
| CN204874758U (en) | Degrease equipment of almag pipeline | |
| CN112481624B (en) | Automatic purification device for concentrated acid pipeline of acid regeneration system and use method of automatic purification device | |
| CN103608125A (en) | A process of electrolytic galvanizing with an enhanced anti-corrosive protection | |
| CN206535830U (en) | A kind of spandex metal hose purging system | |
| CN201688748U (en) | Special cleaning device for wall-hanging boiler | |
| CN205347580U (en) | Metal surface inorganic coating gets rid of and loses system with alkali |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190314 Address after: 312500 Dong Wang 210, Dong Wa village, Chengtan Town, Xinchang County, Shaoxing, Zhejiang Applicant after: Xinchang Jiaxiang Electronic Technology Co., Ltd. Address before: Room 103, No. 18 Fenghua Road, Yuhua Economic Development Zone, Nanjing City, Jiangsu Province Applicant before: Nanjing Zhicheng Technology Development Co., Ltd. Patent Law |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |