CN101929589B - Induced repair method for coating on inner surface of geothermic water metal pipe by using scale forming substance in geothermic water - Google Patents

Induced repair method for coating on inner surface of geothermic water metal pipe by using scale forming substance in geothermic water Download PDF

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Publication number
CN101929589B
CN101929589B CN 201010242960 CN201010242960A CN101929589B CN 101929589 B CN101929589 B CN 101929589B CN 201010242960 CN201010242960 CN 201010242960 CN 201010242960 A CN201010242960 A CN 201010242960A CN 101929589 B CN101929589 B CN 101929589B
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geothermal water
dirt
caco
coating
repairing
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CN101929589A (en
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刘慧丛
李卫平
王公关
翟军云
管琪
朱立群
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Beihang University
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Beihang University
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Abstract

The invention discloses an induced repair method for a coating on the inner wall of a metal pipeline material under a geothermic water environment by using a scale forming substance in geothermic water and nucleation and growth mechanisms thereof. The method comprises the following steps of: coating the scale forming substance on the cracks of the coating in the pipeline, soaking the pipeline in the simulated geothermic water for certain time, and growing and thickening the filled scale forming substance so as to fill the cracks and repair the micro cracks. The induced repair method can be applied to the metal pipeline of the coating cracks caused by a curing process and mechanical damage, and is also suitable for repairing the geothermic water pipeline after being used for certain time. The induced repair method for the anticorrosion coating on the inner surface of the pipeline by using the geothermic water scale forming substance has the advantages of simple operation process, low cost and environment friendliness.

Description

A kind ofly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating
Technical field
The present invention relates to a kind of the method that crackle is repaired appearred in corrosion resistant coating; More particularly say; Induce repair materials and restorative procedure that the present invention adopts are applicable to the micro-crack that produces because of curing process, mechanical damage, and the pipeline after using a period of time under the GEOTHERMAL WATER environment is repaired.
Background technology
Qiu Yanyan, introduced the GEOTHERMAL WATER incrustation scale in Jiaozuo Institute of Technology's journal (natural science edition) of the 22nd volume and can be divided into calcium carbonate scale (CaCO by its main chemical compositions the 6th phase November in 2003 3), calcium sulfate dirt, silicate scale and iron oxide dirt etc.Utilize in the process in GEOTHERMAL WATER, the most ubiquitous is calcium carbonate scale.Therefore we can say that the dissolution equilibrium of calcium carbonate is determining its fouling tendency in the GEOTHERMAL WATER.Saturation state by calcium carbonate can be predicted its scaling tendency in GEOTHERMAL WATER roughly: if the calcium carbonate in the GEOTHERMAL WATER is in undersaturated condition, scale formation can not take place in this GEOTHERMAL WATER so; If be in hypersaturated state, then this GEOTHERMAL WATER has scaling tendency.
Being used for the pipeline of geothermal water conveying at present is generally metal tube, and in order to slow down the etching problem of metal tube at geothermal water conveying, its inner surface of pipeline of being everlasting applies corrosion-resistant finishes.But the coating that applies is because of curing process processing, mechanical damage and effectively can a large amount of micro-crack of generation because of aging, swelling etc. during the service life.
The metallic conduit that is used for geothermal water conveying in use for some time because factors such as the water temperature of GEOTHERMAL WATER, water velocity, hydraulic pressure also can make corrosion-resistant finishes a large amount of crackles occur.
Yet the sprouting point that these crackles often lost efficacy for coating can constantly enlarge the coating failed areas, influences the effective antiseptic effect of coating to metal material matrix, reduces the effective rate of utilization of the GEOTHERMAL WATER energy.
Summary of the invention
In order to solve the crackle that causes because of processing technology; And the crackle that uses the underground heat water pipe after a period of time to occur; The present invention proposes a kind ofly to utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe rete, and this method is with the CaCO in the GEOTHERMAL WATER 3Dirt is filled up in the crackle that pipeline coatings occurs, and is filled in the CaCO in the crackle 3Dirt can be induced in the environment for use of GEOTHERMAL WATER and grown up, thereby the function that crackle is tamped in realization makes the utilization rate of geothermal water conveying pipeline be improved; The method that the present invention smears through machinery is with CaCO 3Dirt is filled in the crackle; To be filled with CaCO then 3The pipeline of dirt is soaked in the simulation GEOTHERMAL WATER solution of 40 ℃～60 ℃ of temperature and keeps certain hour (20 hours～100 hours), makes the branch CaCO that just fills in the rete inside crack 3Dirt is grown up and overstriking fully, tamps crackle then; At last, after 15 minutes～30 minutes, take out, promptly realized Crack repair in the coating in dried under 50 ℃～80 ℃ the temperature.Utilize the inventive method to carry out the coating crack reparation and have characteristics such as cost is low, simple to operate, applied widely.
Be used for filling the CaCO of coating crack among the present invention 3Dirt is GEOTHERMAL WATER to be carried out fouling handle the back acquisition.
The present invention has advantage to the restorative procedure of crackle compared with prior art:
(1) the present invention adopts the scale forming matter (CaCO in the GEOTHERMAL WATER 3Dirt) induces the metallic conduit that uses in the reparation GEOTHERMAL WATER environment, through CaCO 3Dirt growing up in crackle tamped and improved the utilization rate of metallic conduit at geothermal water conveying.
(2) the present invention adopts the scale forming matter (CaCO in the GEOTHERMAL WATER 3Dirt) induce reparation because of curing process processing, mechanical damage and effectively during the service life because of wear out, the micro-crack of generation such as swelling repairs.
(3) the used CaCO of the present invention 3Dirt is prevalent in the GEOTHERMAL WATER, and raw material is prone to obtain, production cost is low.CaCO 3Dirt is an inorganic compound, and it does not dissolve, decomposes in the GEOTHERMAL WATER environment, and better chemical stability is arranged, and the inner surface of pipeline coating after guaranteeing to repair has Corrosion Protection preferably.
(4) restorative procedure of the present invention is better is suitable for epoxy coating, epoxy silicone resin coating, fluorocarbon resin coating, polyphenylene sulfide coating etc.
(5) restorative procedure of the present invention also can be with a large amount of CaCO 3After dirt tamps whole pipe, adopt centrifugal rotating technics with CaCO 3Dirt is filled up in coating crack, throws away unnecessary CaCO at last 3The dirt material can be accomplished CaCO like this 3The preliminary filling of dirt.The method can be repaired the pipeline inner wall anticorrosion paint of little caliber or special shape effectively, and technology is simple, and is with low cost.
Description of drawings
Fig. 1 is the sketch map that utilizes scale forming matter in the GEOTHERMAL WATER to induce reparation of the present invention.
Fig. 2 is that the present invention collects the CaCO that obtains 3The dirt photo.
Fig. 2 A collects the CaCO that obtains with the present invention 3Electron-microscope scanning picture after dirt amplifies.
Fig. 3 is to use the cross section electron-microscope scanning picture of GEOTHERMAL WATER pipeline after a while.
Fig. 4 is the CaCO that adopts embodiment 1 to make 3Electron-microscope scanning picture after dirt is repaired.
Fig. 5 is the CaCO that adopts embodiment 2 to make 3Electron-microscope scanning picture after dirt is repaired.
The specific embodiment
Referring to shown in Figure 1, a kind of dirty material (CaCO in the GEOTHERMAL WATER that utilizes of the present invention 3Dirt) induce the method for repairing corrosion-resistant finishes, this restorative procedure includes the following step:
Step 1: CaCO 3The collection of dirt
GEOTHERMAL WATER after boiling 30 minutes～90 minutes on the electric hot plate, filter is removed GEOTHERMAL WATER, take out scale forming matter, then scale forming matter is placed that dried obtains the CaCO of branch shape structure after 15 minutes～30 minutes under 50 ℃～80 ℃ the temperature 3Dirt;
In the present invention, GEOTHERMAL WATER is that nature exists, like the GEOTHERMAL WATER in Cangzhou, Hebei province Ming Huazhen area, the GEOTHERMAL WATER of city east, Tanghe County, Nanyang City, Henan Province, the GEOTHERMAL WATER of Tianjin Binhai New District etc.
In the present invention, GEOTHERMAL WATER also can be to be prepared by sodium acid carbonate, sodium sulphate, magnesium chloride, calcium chloride, potassium chloride, sodium chloride and deionized water to obtain, and also is called the simulation GEOTHERMAL WATER; Wherein, required sodium acid carbonate 2g～5g, sodium sulphate 0.5g～2g, magnesium chloride 2g～4g, calcium chloride 2g～4g, potassium chloride 0.5g～2g and sodium chloride 30g～50g in the deionized water of 10L; The pH value of simulation GEOTHERMAL WATER is 6～7.
In the present invention, through the collected CaCO that obtains of simulation GEOTHERMAL WATER 3Dirt, its microstructure pattern are " flowers " shape that is combined into emission type by the branch shape, about the length 40 μ m～60 μ m of branch.
Step 2: CaCO 3Dirt is to Crack repair
(A) CaCO that step 1 is obtained 3The mechanical application process of dirt employing is smeared in the inner surface of pipeline coating and cracks occurred;
(B) will be filled with CaCO 3The pipeline of dirt is soaked in the GEOTHERMAL WATER of 40 ℃～60 ℃ of temperature, soaks after 20 hours～100 hours and takes out, and obtains preparatory pipe-repairing;
Be filled with CaCO 3The pipeline of dirt soaks in the GEOTHERMAL WATER environment, makes CaCO in the coating crack 3Dirt is grown up and overstriking fully, tamps crackle then;
(C) preparatory pipe-repairing is taken out after 15 minutes～30 minutes in dried under 50 ℃～80 ℃ the temperature, obtain repairing the back pipeline.
The mechanical application process that in step 2, adopts includes wiping technology, when brushing technology or spraying coating process, only needs CaCO 3Dirt is filled in the crackle and gets final product.
In order to realize that small-bore and irregular pipeline carries out the coating on inner surface Crack repair, chooses centrifugal fill process, at first with CaCO 3Dirt is inserted interior conduit, and the sealed at both ends of pipeline is good, is installed to then on the centrifugation apparatus, sets centrifugal rotational speed and is 600 fens/change under～3000 minutes/condition of changeing centrifugal treating and take off after 3 minutes～10 minutes.
The used method of the present invention is induced the reparation rete for utilizing in the GEOTHERMAL WATER dirty material, promptly with foulant for inducing core, in conjunction with its forming core and the mechanism of growing up crackle is repaired.
The used GEOTHERMAL WATER of the present invention is that calcium carbonate etc. is in hypersaturated state, the obtain solution or the real GEOTHERMAL WATER of big scaling tendency are arranged, and its scale forming matter is mainly by CaCO 3Form.
In the present invention, with CaCO 3Dirt is filled in before the crackle, also can be with CaCO 3Dirt carries out milled processed, obtains thinner CaCO 3The dirt powder.
The mechanism that the present invention told is that preliminary a certain size cylinder calcium carbonate of filling piles up each other in crackle, it soaks in GEOTHERMAL WATER behind the certain hour in horizontal and vertical elongated chap, promptly tamps crackle with dirt for inducing core.
The present invention adopts CaCO 3Dirt carries out the coating crack reparation, and its coating can be epoxy coating, epoxy silicone resin coating, fluorocarbon resin coating, polyphenylene sulfide coating and other inorganic and organic, single and compound metal surface anticorrosive coatings.
Embodiment 1The CaCO that utilizes the simulation GEOTHERMAL WATER to produce 3Dirt is repaired
Step 1: CaCO 3The collection of dirt
(A) preparation of simulation GEOTHERMAL WATER: in the deionized water of 1L, add sodium acid carbonate 0.332g, sodium sulphate 0.113g, magnesium chloride 0.328g, calcium chloride 0.284g, potassium chloride 0.177g and sodium chloride 3.641g respectively, stir, promptly obtain simulating GEOTHERMAL WATER;
(B) will simulate GEOTHERMAL WATER after boiling 60 minutes on the electric hot plate, filter paper filters, and obtains the scale forming matter on filter paper upper strata, and then scale forming matter being placed temperature is that 50 ℃ drying box was handled 15 minutes, obtains the CaCO of branch shape structure at last 3Dirt;
With the CaCO that makes 3Dirt carries out the morphology observation of microscopically, shown in Fig. 2, Fig. 2 A, and among the figure, CaCO 3The microstructure pattern of dirt is for being combined into " flowers " shape of emission type by the branch shape, the length of branch is about 40 μ m～60 μ m.
Step 2: CaCO 3Dirt is to Crack repair
(A) metallic conduit of choosing is that a underground heat water factory in Ming Huazhen area used the pipeline in 1 year in Cangzhou, Hebei province, and the coating material of inner surface of pipeline is an epoxy silicone resin.Use the sectional view of back pipeline as shown in Figure 3, among the figure, the surface of coating has incrustation scale to occur, and also has crackle to produce simultaneously.
Intercepting duct length 5cm, the interior diameter 8cm of pipeline.
This segment pipe to intercepting carries out the inner surface flushing with the running water that flows, and gravity-flow ventilation 1 day is for use;
(B) with CaCO 3Dirt is put into metallic conduit, adopts surperficial wiping technology to make CaCO then 3Dirt gets in the crackle of coating, pours out the unnecessary CaCO in the pipeline at last 3Dirt obtains preparatory pipe-repairing;
(C) preparatory pipe-repairing being placed temperature is that 50 ℃ simulation GEOTHERMAL WATER was soaked 90 hours, takes out, and after temperature is that 50 ℃ oven dry is handled 30 minutes down, takes out again, obtains to repair the back pipeline.
To tamping the CaCO in cracks 3Dirt also can adopt spraying or rinse and be coated with technology, and its purpose has CaCO exactly in coating crack 3The existence of dirt.Place the immersion of simulation GEOTHERMAL WATER its objective is preparatory pipe-repairing and make the branch CaCO that just fills in coating crack inside 3Dirt is grown up and overstriking fully, tamps crackle then.
Repair the performance test of back pipeline:
To place temperature be that 60 ℃ simulation GEOTHERMAL WATER was soaked 1 day, 2 days, 3 days, 6 days with repairing the back pipeline, takes out, and carries out microscopic appearance analysis (SEM) respectively, soaks after 1 day, 2 days and 3 days, and inner surface of pipeline does not take place unusually; And after soaking 6 days, take out the CaCO that the crackle of inner surface of pipeline is grown up after finding to repair 3Dirt tamps, and CaCO 3On the dirt also once more with GEOTHERMAL WATER in the scale forming matter that produces combine, elongated chap in the horizontal and vertical directions makes crackle fill more closely knitly, the coating macroscopic view is smooth, can't see crackle basically, this explanation coating has obtained excellent repairing, as shown in Figure 4.
Embodiment 2The CaCO that the GEOTHERMAL WATER of utilizing nature to exist produces 3Dirt is repaired
Step 1: CaCO 3The collection of dirt
The GEOTHERMAL WATER that Cangzhou, the Hebei province Ming Huazhen that obtains is regional is after boiling 90 minutes on the electric hot plate; Filter and remove unnecessary GEOTHERMAL WATER; And the scale forming matter on filter paper upper strata taken out, placing temperature is that dried obtained the CaCO of branch shape structure after 25 minutes under 75 ℃ the condition 3Dirt;
Step 2: CaCO 3Dirt is to Crack repair
(A) CaCO that step 1 is obtained 3Dirt is put into the U-shaped metallic conduit, is installed in then on the centrifuge, regulate centrifugal rotational speed and be 1000 fens/condition of changeing under centrifugal treating after 5 minutes, take off,
The coating on inner surface material of said U-shaped metallic conduit is the fluorocarbon resin coating, and this U-shaped metallic conduit is the substandard products that crackle appears in coating, the interior diameter 1.5cm of pipeline.
(B) will be filled with CaCO 3The pipeline of dirt is soaked in the GEOTHERMAL WATER (GEOTHERMAL WATER in Cangzhou, Hebei province Ming Huazhen area) of 43 ℃ of temperature, soaks after 50 hours and takes out, and obtains preparatory pipe-repairing;
Be filled with CaCO 3The pipeline of dirt soaks in the GEOTHERMAL WATER environment, makes CaCO in the coating crack 3Dirt is grown up and overstriking fully, tamps crackle then;
(C) preparatory pipe-repairing is taken out after 15 minutes in dried under 75 ℃ the temperature, obtain repairing the back pipeline.
Repair the performance test of back pipeline:
To place temperature be that (deionized water at 1L adds sodium acid carbonate 0.332g, sodium sulphate 0.113g, magnesium chloride 0.328g, calcium chloride 0.284g, potassium chloride 0.177g and sodium chloride 3.641g respectively for 60 ℃ simulation GEOTHERMAL WATER with repairing the back pipeline; Stir; Promptly obtain simulating GEOTHERMAL WATER) the middle immersion after 10 days; Take out; Adopt the section (section can fully be seen coating, and carries out sem analysis) of machine cuts mode intercepting U-shaped metallic conduit, the CaCO that the crackle of inner surface of pipeline is grown up after finding to repair 3Dirt tamps, and CaCO 3On the dirt also once more with GEOTHERMAL WATER in the scale forming matter that produces combine, elongated chap in the horizontal and vertical directions makes crackle fill more closely knitly; The coating macroscopic view is smooth; Basically can't see crackle, this explanation fluorocarbon resin coating has obtained excellent repairing, and is as shown in Figure 5.
Embodiment 3The CaCO that the GEOTHERMAL WATER of utilizing nature to exist produces 3Dirt is repaired
Step 1: CaCO 3The collection of dirt
The GEOTHERMAL WATER of the Tianjin Binhai New District of obtaining after boiling 30 minutes on the electric hot plate, is filtered with filter paper and to be obtained scale forming matter, and then scale forming matter being placed temperature is that dried obtained the CaCO of branch shape structure after 30 minutes under 50 ℃ the condition 3Dirt;
Step 2: CaCO 3Dirt is to Crack repair
(A) CaCO that step 1 is obtained 3Dirt is put into the long straight tube (the straight tube internal diameter is 2cm) of 3cm, adopts scraper plate with CaCO then 3Dirt tamps in the crackle of the epoxy silicone resin coating of straight tube inner surface;
(B) will be filled with CaCO 3The straight tube of dirt is soaked in the simulation GEOTHERMAL WATER of 60 ℃ of temperature, soaks after 50 hours and takes out, and obtains preparatory pipe-repairing; In the deionized water of 1L, add sodium acid carbonate 0.47g, sodium sulphate 0.16g, magnesium chloride 0.23g, calcium chloride 0.38g, potassium chloride 0.05g and sodium chloride 4.41g respectively, stir, promptly obtain simulating GEOTHERMAL WATER;
Be filled with CaCO 3The pipeline of dirt soaks in simulation GEOTHERMAL WATER environment, makes CaCO in the coating crack 3Dirt is grown up and overstriking fully, tamps crackle then;
(C) preparatory pipe-repairing is taken out after 15 minutes in dried under 75 ℃ the temperature, obtain repairing the back pipeline.
Repair the performance test of back pipeline:
To place temperature be after 42 ℃ simulation GEOTHERMAL WATER is soaked 10 days with repairing the back pipeline; Take out; Adopt the section (section can fully be seen coating, and carries out sem analysis) of machine cuts mode intercepting straight tube, the CaCO that the crackle of inner surface of pipeline is grown up after finding to repair 3Dirt tamps, and CaCO 3On the dirt also once more with GEOTHERMAL WATER in the scale forming matter that produces combine, elongated chap in the horizontal and vertical directions makes crackle fill more closely knitly, the coating macroscopic view is smooth, can't see crackle basically, this explanation fluorocarbon resin coating obtained excellent repairing.

Claims (9)

1. one kind is utilized scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that including the following step:
Step 1: CaCO 3The collection of dirt
Scale forming matter is filtered, obtained to GEOTHERMAL WATER after boiling 30 minutes～90 minutes on the electric hot plate; Then scale forming matter is placed that dried obtains the CaCO of branch shape structure after 15 minutes～30 minutes under 50 ℃～80 ℃ the temperature 3Dirt; The CaCO that makes 3The branch length of dirt is 40 μ m～60 μ m;
Step 2: CaCO 3Dirt is to Crack repair
(A) CaCO that step 1 is obtained 3The mechanical application process of dirt employing is smeared in the inner surface of pipeline coating and cracks occurred;
(B) will be filled with CaCO 3The pipeline of dirt is soaked in the GEOTHERMAL WATER of 40 ℃～60 ℃ of temperature, soaks after 20 hours～100 hours and takes out, and obtains preparatory pipe-repairing;
Be filled with CaCO 3The pipeline of dirt soaks in the GEOTHERMAL WATER environment, makes CaCO in the coating crack 3Dirt is grown up and overstriking fully, tamps crackle then;
(C) preparatory pipe-repairing is taken out after 15 minutes～30 minutes in dried under 50 ℃～80 ℃ the temperature, obtain repairing the back pipeline.
2. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating; It is characterized in that: described GEOTHERMAL WATER is prepared gained by sodium acid carbonate, sodium sulphate, magnesium chloride, calcium chloride, potassium chloride, sodium chloride and deionized water, also is called the simulation GEOTHERMAL WATER; Wherein, required sodium acid carbonate 2g～5g, sodium sulphate 0.5g～2g, magnesium chloride 2g～4g, calcium chloride 2g～4g, potassium chloride 0.5g～2g and sodium chloride 30g～50g in the deionized water of 10L; The pH value of simulation GEOTHERMAL WATER is 6～7.
3. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: described GEOTHERMAL WATER is chosen the GEOTHERMAL WATER that nature exists.
4. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: described GEOTHERMAL WATER is chosen GEOTHERMAL WATER, the GEOTHERMAL WATER of city east, Tanghe County, Nanyang City, Henan Province or the GEOTHERMAL WATER of Tianjin Binhai New District that Ming Huazhen area in Cangzhou, Hebei province is arranged.
5. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: when mechanical application process is chosen wiping technology, when brushing technology or spraying coating process, only needed CaCO 3Dirt is filled in the crackle and gets final product.
6. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating; It is characterized in that: when mechanical application process is chosen centrifugal fill process, centrifugal fill process be centrifugal rotational speed be 600 minutes/changeed under～3000 minutes/condition of changeing centrifugal treating 3 minutes～10 minutes.
7. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: be applicable to that pipe diameter repairs less than the pipeline of 5cm.
8. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: described restorative procedure be applicable to because of curing process processing, mechanical damage and effectively during the service life because of the reparation of wearing out, swelling cracks.
9. according to claim 1ly utilize scale forming matter in the GEOTHERMAL WATER to induce the method for repairing GEOTHERMAL WATER Inner Surface of Metal Pipe coating, it is characterized in that: described restorative procedure is applicable to Crack repair is appearred in used GEOTHERMAL WATER Inner Surface of Metal Pipe coating.
CN 201010242960 2010-08-03 2010-08-03 Induced repair method for coating on inner surface of geothermic water metal pipe by using scale forming substance in geothermic water Expired - Fee Related CN101929589B (en)

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CN106324191A (en) * 2016-08-05 2017-01-11 中国海洋石油总公司 Submarine pipeline scaling dynamic monitoring experimental device and application method thereof
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101382211A (en) * 2008-10-16 2009-03-11 山东天丰太阳能制品有限公司 Method for producing steel-plastic composite high-temperature high-pressure anti-corrosive pipe
CN101576195A (en) * 2008-05-09 2009-11-11 中国石油天然气股份有限公司 Construction method for repairing pipelines with defects by use of prepreg

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11124694A (en) * 1997-10-17 1999-05-11 Takasago Thermal Eng Co Ltd Rust inhibiting method of air conditioning pipeline and rust inhibiting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576195A (en) * 2008-05-09 2009-11-11 中国石油天然气股份有限公司 Construction method for repairing pipelines with defects by use of prepreg
CN101382211A (en) * 2008-10-16 2009-03-11 山东天丰太阳能制品有限公司 Method for producing steel-plastic composite high-temperature high-pressure anti-corrosive pipe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP平11-124694A 1999.05.11
邱燕燕等.《地热水结垢与腐蚀机理及趋势判别》.《焦作工学院学报(自然科学版)》.2003,第22卷(第6期),第424-427页. *

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