CN108247928A - A kind of renovation processing technology of seawater pipeline - Google Patents
A kind of renovation processing technology of seawater pipeline Download PDFInfo
- Publication number
- CN108247928A CN108247928A CN201711435825.6A CN201711435825A CN108247928A CN 108247928 A CN108247928 A CN 108247928A CN 201711435825 A CN201711435825 A CN 201711435825A CN 108247928 A CN108247928 A CN 108247928A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- renovation
- processing
- seawater pipeline
- seawater
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/12—Coatings characterised by the materials used by tar or bitumen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Cause of high cost to solve the problem of currently on the market the management after corrosion scrap processing, the present invention provides a kind of renovation processing technologys of seawater pipeline, include the following steps：The seawater pipeline for treating renovation is assessed；Asphalt primer is smeared in derusting, repair welding, and finishing coat is smeared in leaching modeling.The renovation processing technology of seawater pipeline of the present invention finally smears the mode of finishing coat using first priming, then carry out leaching modeling processing, by nonmetallic covering metal surface, reach anti-corrosion effect, and it is low to renovate processing cost by blanketing effect, the service life of pipeline is extended, reduces cost.
Description
Technical field
The present invention relates to pipeline processing technical field more particularly to a kind of renovation process fields of pipeline.
Background technology
Seawaterline is the important support safeguards system in naval vessel, is related to the operational safety of each system and equipment on ship,
Equally important to human body just like blood vessel, seawater corrosion and sea marine organism pollution are always the Important Problems of seawater pipe concern,
Sea-water salt concentration is big, humiture is high, marine growth is more, and the corrosion of sea water piping system is even more serious, particularly we at present use compared with
More compo pipes since the electrode potential of alloying element is different, easily generates electrochemical corrosion, and the potential difference between metal is got over
Greatly, corrode faster.As seawater pollution is increasingly severe, the corrosion of ship pipeline is also increasingly severe, causes to corrosion
The pipeline changed afterwards is more and more, and currently on the market also not to the renovation processing method of old carbon steel pipe, can only will be old
Pipeline scraps processing, causes cost higher.
Invention content
In order to solve the problem of currently on the market the management after corrosion scrap to handle to lead to of high cost, the present invention
A kind of renovation processing technology of seawater pipeline is provided, renovation processing is carried out to the pipeline after corrosion, reaches waste utilization, is reduced
Cost economizes on resources.
A kind of renovation processing technology of seawater pipeline of the present invention, includes the following steps：
S1：The seawater pipeline for treating renovation is assessed, and determines the pipeline for needing to repair；
S2：Derusting utilizes pressure using after being cleaned and dried to seawaterline using dry blast-cleaning, the sand grains of 2.0~3.0mm of selection
Contracting air is ejected into seawaterline surfaces externally and internally with the speed of 6~10m/s by ejecting gun and derusts；
S3：Repair welding carries out repair welding processing to corrosion location；
S4：Asphalt primer is smeared, asphalt primer includes pitch and kerosene, and weight ratio is the pitch of 50~70 components, 60~70
The kerosene of component；
S5：Leaching modeling carries out seawater pipeline rotational moulding processing, and wherein rotational moulding material is polyolefine modified material；
S6：Finishing coat is smeared, finishing coat uses polyurethane anti-corrosion paint.
Further, the polyolefine modified material Ingredients Weight proportioning includes：13 parts of polypropylene, 10 parts of polyethylene, carbon
Sour 20 parts of calcium, 3 parts of organo-silicon compound.
Further, to pipeline the pre-heat treatment before leaching modeling, 80 DEG C~120 DEG C of preheating temperature, preheating time 20min~
30min。
The renovation processing technology of seawater pipeline of the present invention finally smears finishing coat using first priming, then carry out leaching modeling processing
Mode, by nonmetallic covering metal surface, reach anti-corrosion effect by blanketing effect, and it is low to renovate processing cost, prolongs
The service life of pipeline has been grown, has reduced cost.
Specific embodiment
In actual use, specific renovation processing method is as follows for a kind of renovation processing technology of seawater pipeline of the present invention：
S1：The seawater pipeline for treating renovation is assessed, and determines the pipeline for needing to repair；In the present embodiment, it is big according to corrosion
Small and pipeline wall thickness loss situation, it is determined whether meet the condition that renovation is repaired；To qualified in next step, be not inconsistent
The carrying out of conjunction condition scraps processing；
S2：Derusting, in the present embodiment, in order to reach preferable derusting effect, by the way of dry blasting, that is, select 2.0~
The sand grains of 3.0mm is ejected into gas piping surface with the speed of 6~10m/s by ejecting gun using compressed air and derusts；
Before derusting by sandblasting, first pass through wind turbine preheated steel pipe and drive away moisture, tube surface temperature should be kept above dew-point temperature at least 3
DEG C, but prevent steel pipe coating metal from ess-strain occurs with 100 DEG C should be less than during detection in blasting treatment.After derusting by sandblasting,
The remaining sand grains of steel pipe surfaces externally and internally and outer surface rust powder micronic dust should be removed clean；Preferably by ultrasonic cleaning and drying.
The surface defect such as surface defect in weld seam, edge and other regions that may influence coating quality is handled and meets GB/
P2 specified in T 8923.3-2009 grades；
S3：Repair welding carries out repair welding processing according to pipeline pipe thickness and corrosion size, in the present embodiment, in order to reduce cost,
Using argon arc welding machine, in order to improve the mechanical performance of pipeline, polishing cleaning is carried out to tube wall after repair welding so that pipe surface is coarse
It spends in Ra12.5 hereinafter, increasing tube wall and the adhesive force of follow-up coating；
S4：In order to reduce cost, the weatherability of pipeline is improved, smearing asphalt primer is carried out to pipeline, in order to improve priming paint table again
The adhesive force in face, the present embodiment asphalt primer include pitch and kerosene, and weight ratio is the pitch of 60 components and the coal of 65 components
Oil；Smearing process should uniformly, it is fine and close, prevent to stay vertical phenomenon and leak source；
S5：Leaching modeling carries out rotational moulding processing to seawater pipeline, and in order to improve antiseptic property, rotational moulding material is polyolefine modified material,
To improve the adhesive force of coating and base material, polyolefine modified material Ingredients Weight proportioning includes in the present embodiment：13 parts of polypropylene,
10 parts of polyethylene, 20 parts of calcium carbonate, 3 parts of organo-silicon compound；
S6：Finishing coat is finally smeared, in the present embodiment, in order to cost-effective, finishing coat uses polyurethane anti-corrosion paint.
The renovation processing technology of seawater pipeline of the present invention finally smears finishing coat using first priming, then carry out leaching modeling processing
Mode, by nonmetallic covering metal surface, reach anti-corrosion effect by blanketing effect, pipeline after renovation carries out old
Change experiment, can also during normal use use 5 years or more, and renovate that processing cost is low, extend the service life of pipeline, drop
Low cost.
Further, in order to improve the adhesive force of non-metallic layer and metal surface, in the present embodiment, to pipe before leaching modeling
Road the pre-heat treatment, 100 DEG C of preheating temperature, preheating time 25min.
Although giving detailed description and explanation to the specific embodiment of the present invention above, it should be noted that
We can be according to the present invention conception various equivalent changes and modification are carried out to the above embodiment, generated function is made
It, should all be within protection scope of the present invention during with the spirit still covered without departing from specification.
Claims (3)
1. the renovation processing technology of a kind of seawater pipeline, which is characterized in that include the following steps：
S1：The seawater pipeline for treating renovation is assessed, and determines the pipeline for needing to repair；
S2：Derusting utilizes pressure using after being cleaned and dried to seawaterline using dry blast-cleaning, the sand grains of 2.0~3.0mm of selection
Contracting air is ejected into seawaterline surfaces externally and internally with the speed of 6~10m/s by ejecting gun and derusts；
S3：Repair welding carries out repair welding processing to corrosion location；
S4：Asphalt primer is smeared, asphalt primer includes pitch and kerosene, and weight ratio is the pitch of 50~70 components, 60~70
The kerosene of component；
S5：Leaching modeling carries out seawater pipeline rotational moulding processing, and wherein rotational moulding material is polyolefine modified material；
S6：Finishing coat is smeared, finishing coat uses polyurethane anti-corrosion paint.
2. the renovation processing technology of seawater pipeline according to claim 1, which is characterized in that the polyolefine modified material
Ingredients Weight proportioning includes：13 parts of polypropylene, 10 parts of polyethylene, 20 parts of calcium carbonate, 3 parts of organo-silicon compound.
3. the renovation processing technology of seawater pipeline according to claim 1 or 2, which is characterized in that pipeline before leaching modeling
The pre-heat treatment, 80 DEG C~120 DEG C of preheating temperature, preheating time 20min~30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435825.6A CN108247928A (en) | 2017-12-26 | 2017-12-26 | A kind of renovation processing technology of seawater pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435825.6A CN108247928A (en) | 2017-12-26 | 2017-12-26 | A kind of renovation processing technology of seawater pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108247928A true CN108247928A (en) | 2018-07-06 |
Family
ID=62722943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435825.6A Pending CN108247928A (en) | 2017-12-26 | 2017-12-26 | A kind of renovation processing technology of seawater pipeline |
Country Status (1)
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| CN (1) | CN108247928A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996002785A1 (en) * | 1994-07-13 | 1996-02-01 | Winn & Coales International Ltd. | Pipe |
| CN1580165A (en) * | 2003-07-30 | 2005-02-16 | 北京度辰新材料股份有限公司 | High temperature resistance anticorrosive polyolefin composition and its use |
| CN1799818A (en) * | 2006-01-17 | 2006-07-12 | 大庆油田庆新工程材料有限公司 | Anti-corrosion tube and its manufacturing process |
| CN103912760A (en) * | 2014-03-09 | 2014-07-09 | 赵景军 | Steel pipe anticorrosive coating processing technology |
| CN105202276A (en) * | 2015-10-20 | 2015-12-30 | 伊荣德滚塑管业（深圳）有限公司 | Renovation process method of old seawater carbon steel pipeline |
-
2017
- 2017-12-26 CN CN201711435825.6A patent/CN108247928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996002785A1 (en) * | 1994-07-13 | 1996-02-01 | Winn & Coales International Ltd. | Pipe |
| CN1580165A (en) * | 2003-07-30 | 2005-02-16 | 北京度辰新材料股份有限公司 | High temperature resistance anticorrosive polyolefin composition and its use |
| CN1799818A (en) * | 2006-01-17 | 2006-07-12 | 大庆油田庆新工程材料有限公司 | Anti-corrosion tube and its manufacturing process |
| CN103912760A (en) * | 2014-03-09 | 2014-07-09 | 赵景军 | Steel pipe anticorrosive coating processing technology |
| CN105202276A (en) * | 2015-10-20 | 2015-12-30 | 伊荣德滚塑管业（深圳）有限公司 | Renovation process method of old seawater carbon steel pipeline |
Non-Patent Citations (4)
| Title |
|---|
| 李继业: "《水暖工程基础知识与施工技术》", 30 April 2014 * |
| 柳金海: "《管道防腐蚀工程》", 31 January 2008, 机械工业出版 * |
| 樊荔: "《水暖工》", 31 March 2013, 西南交通大学出版社 * |
| 王书田: "《热处理设备》", 31 March 2011 * |
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Application publication date: 20180706 |
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