CN105423067A - Corrosion-resistant layer of buried pipeline - Google Patents
Corrosion-resistant layer of buried pipeline Download PDFInfo
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- CN105423067A CN105423067A CN201510955595.0A CN201510955595A CN105423067A CN 105423067 A CN105423067 A CN 105423067A CN 201510955595 A CN201510955595 A CN 201510955595A CN 105423067 A CN105423067 A CN 105423067A
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- buried pipeline
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- glass fabric
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention relates to a corrosion-resistant layer of a buried pipeline. The objective of the invention is to solve the problem that the existing corrosion-resistant layer of the buried pipeline easily breaks due to low strength and is easily corroded due to poor corrosion resistance. The corrosion-resistant layer of the buried pipeline uses a primer, a finish, a curing agent, a diluent and woven glass fabric as raw materials, and sequentially consists of a primer layer, a first finish layer, a first woven glass fabric layer, a second finish layer, a second woven glass fabric layer, a third finish layer and a fourth finish layer from the inner to the outer or sequentially consists of a primer layer, a first finish layer, a first woven glass fabric layer, a second finish layer, a second woven glass fabric layer, a third finish layer, a third woven glass fabric layer, a fourth finish layer and a fifth finish layer from the inner to the outer. The DN of the buried pipeline is 300mm. The corrosion-resistant layer is mainly used for the corrosion resistance of the buried pipeline of which the DN is 300mm.
Description
Technical field
The present invention relates to a kind of anticorrosive coat of buried pipeline.
Background technique
That builds along with National modern progressively gos deep into, underground metalliferous builds and increases sharply, as the gas pipeline of transfering natural gas from the west to the east, the oil transport pipeline, cable, foggara drain pipe etc. of oil south, north tune, buried pipeline can conserve space, but due to the corrosion of soil, the problem of oozing dew can be caused, cause damage or accident.It is low to there is intensity in existing buried pipeline anticorrosive coat, causes the problem easily occurring that anticorrosive coat ruptures, corrosion-resistant, causes easy corrosion.
Summary of the invention
The object of the invention is to solve existing buried pipeline anticorrosive coat, to there is intensity low, causes the problem easily occurring that anticorrosive coat ruptures, corrosion-resistant, cause holding corrosion-prone problem, and provide a kind of anticorrosive coat of buried pipeline.
A kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer and fourth face enamelled coating, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.23kg, every meter of buried pipeline curing agent use amount is 0.13kg, every meter of buried pipeline thinner use amount is 0.13kg, every meter of buried pipeline glass cloth use amount is 2.45kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
A kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, fourth face enamelled coating and the 5th top coat layer, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.43kg, every meter of buried pipeline curing agent use amount is 0.15kg, every meter of buried pipeline thinner use amount is 0.15kg, every meter of buried pipeline glass cloth use amount is 3.67kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
Advantage of the present invention: one, the anticorrosive coat of buried pipeline of the present invention not only used priming paint and finish paint, also use glass cloth, adopt glass cloth as carrier, for carrying out anticorrosion to the buried pipeline of DN=300mm, and employing is followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, the distribution of the 3rd top coat layer and fourth face enamelled coating, or employing is followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, the distribution of fourth face enamelled coating and the 5th top coat layer, not only increase the intensity of buried pipeline anticorrosive coat, improve the corrosion resistance of buried pipeline anticorrosive coat simultaneously, two, the anticorrosive coat resistance of buried pipeline of the present invention is greater than 1500 Ω/m
2, implement anticorrosive coat of the present invention and carry out anticorrosion, do not occur in 6 ~ 8 years oozing dew problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of the buried pipeline anticorrosive coat of embodiment one DN=300mm;
Fig. 2 is the structural representation of the buried pipeline anticorrosive coat of embodiment two DN=300mm.
Embodiment
Embodiment one: composition graphs 1, present embodiment is a kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer and fourth face enamelled coating, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.23kg, every meter of buried pipeline curing agent use amount is 0.13kg, every meter of buried pipeline thinner use amount is 0.13kg, every meter of buried pipeline glass cloth use amount is 2.45kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
The anticorrosive coat of present embodiment buried pipeline not only used priming paint and finish paint, also use glass cloth, adopt glass cloth as carrier, for carrying out anticorrosion to the buried pipeline of DN=300mm, and adopt the distribution being followed successively by prime coat, first surface enamelled coating, the first glass fabric layer, the second top coat layer, the second glass fabric layer, the 3rd top coat layer and fourth face enamelled coating from inside to outside, not only increase the intensity of buried pipeline anticorrosive coat, improve the corrosion resistance of buried pipeline anticorrosive coat simultaneously;
The anticorrosive coat resistance of present embodiment buried pipeline is greater than 1500 Ω/m
2, implement present embodiment anticorrosive coat and carry out anticorrosion, do not occur in 6 years oozing dew problem.
Fig. 1 is the structural representation of the buried pipeline anticorrosive coat of embodiment one DN=300mm, in figure, 1 represents buried pipeline, 2 represent prime coat, 3 represent first surface enamelled coating, 4 represent the first glass fabric layer, and 5 represent the second top coat layer, and 6 represent the second glass fabric layer, 7 represent the 3rd top coat layer, and 8 represent fourth face enamelled coating.
Embodiment two: composition graphs 2, present embodiment is a kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, fourth face enamelled coating and the 5th top coat layer, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.43kg, every meter of buried pipeline curing agent use amount is 0.15kg, every meter of buried pipeline thinner use amount is 0.15kg, every meter of buried pipeline glass cloth use amount is 3.67kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
The anticorrosive coat of present embodiment buried pipeline not only used priming paint and finish paint, also use glass cloth, adopt glass cloth as carrier, for carrying out anticorrosion to the buried pipeline of DN=300mm, and employing is followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, the distribution of the 3rd top coat layer and fourth face enamelled coating, or employing is followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, the distribution of fourth face enamelled coating and the 5th top coat layer, not only increase the intensity of buried pipeline anticorrosive coat, improve the corrosion resistance of buried pipeline anticorrosive coat simultaneously.
The anticorrosive coat resistance of present embodiment buried pipeline is greater than 1500 Ω/m
2, implement present embodiment anticorrosive coat and carry out anticorrosion, do not occur in 8 years oozing dew problem.
Fig. 2 is the structural representation of the buried pipeline anticorrosive coat of embodiment two DN=300mm, in figure, 1 represents buried pipeline, 2 represent prime coat, 3 represent first surface enamelled coating, and 4 represent the first glass fabric layer, and 5 represent the second top coat layer, 6 represent the second glass fabric layer, 7 represent the 3rd top coat layer, and 8 represent that the 3rd glass fabric layer, 9 represents fourth face enamelled coating, and 10 represent the 5th top coat layer.
Adopt following verification experimental verification effect of the present invention
Test one: composition graphs 1, a kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer and fourth face enamelled coating, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.23kg, every meter of buried pipeline curing agent use amount is 0.13kg, every meter of buried pipeline thinner use amount is 0.13kg, every meter of buried pipeline glass cloth use amount is 2.45kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
Priming paint described in this test is bituminous epoxy priming paint, is produced by Changzhou Dai Shi Chemical Co., Ltd..Finish paint described in this test is epoxy asphalt paint, is produced by Tianjin Ao Mei chemistry painting industry Co., Ltd.
Be 1722 Ω/m by detecting the intensity level anticorrosive coat resistance that adds of known buried pipeline
2, carry out anticorrosion detection known, use this test to add intensity level anticorrosive coat in alkaline soils and carry out anticorrosion, buried pipeline runs 6 years and does not occur oozing dew problem; In normal soil, use this test to add intensity level anticorrosive coat carries out anticorrosion, and buried pipeline runs 6 years and do not occur oozing dew problem.
Test two: composition graphs 2, a kind of anticorrosive coat of buried pipeline, the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, fourth face enamelled coating and the 5th top coat layer, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.43kg, every meter of buried pipeline curing agent use amount is 0.15kg, every meter of buried pipeline thinner use amount is 0.15kg, every meter of buried pipeline glass cloth use amount is 3.67kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
Priming paint described in this test is bituminous epoxy priming paint, is produced by Changzhou Dai Shi Chemical Co., Ltd..Finish paint described in this test is epoxy asphalt paint, is produced by Tianjin Ao Mei chemistry painting industry Co., Ltd.
Be 2010 Ω/m by detecting the intensity level anticorrosive coat resistance that adds of known buried pipeline
2, carry out anticorrosion detection known, use this test to add intensity level anticorrosive coat in alkaline soils and carry out anticorrosion, buried pipeline runs 8 years and does not occur oozing dew problem; In normal soil, use this test to add intensity level anticorrosive coat carries out anticorrosion, and buried pipeline runs 8 years and do not occur oozing dew problem.
Claims (2)
1. the anticorrosive coat of a buried pipeline, it is characterized in that the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer and fourth face enamelled coating, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.23kg, every meter of buried pipeline curing agent use amount is 0.13kg, every meter of buried pipeline thinner use amount is 0.13kg, every meter of buried pipeline glass cloth use amount is 2.45kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
2. the anticorrosive coat of a buried pipeline, it is characterized in that the anticorrosive coat of buried pipeline is with priming paint, finish paint, curing agent, thinner and glass cloth are raw material, be followed successively by prime coat from inside to outside, first surface enamelled coating, first glass fabric layer, second top coat layer, second glass fabric layer, 3rd top coat layer, 3rd glass fabric layer, fourth face enamelled coating and the 5th top coat layer, the DN=300mm of described buried pipeline, every meter of buried pipeline priming paint use amount is 0.102kg, every meter of buried pipeline finish paint use amount is 1.43kg, every meter of buried pipeline curing agent use amount is 0.15kg, every meter of buried pipeline thinner use amount is 0.15kg, every meter of buried pipeline glass cloth use amount is 3.67kg, priming paint is directly coated to buried pipeline outer surface, obtain prime coat, apply after adding curing agent and thinner mixing in finish paint, obtain top coat layer, described glass cloth is the neutral-alkaline cloth of alkalinity≤12%, and thickness is 0.1mm ~ 0.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955595.0A CN105423067A (en) | 2015-12-16 | 2015-12-16 | Corrosion-resistant layer of buried pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955595.0A CN105423067A (en) | 2015-12-16 | 2015-12-16 | Corrosion-resistant layer of buried pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN105423067A true CN105423067A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510955595.0A Pending CN105423067A (en) | 2015-12-16 | 2015-12-16 | Corrosion-resistant layer of buried pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371055A (en) * | 2015-12-17 | 2016-03-02 | 七台河宝泰隆煤化工股份有限公司 | Strengthened anti-corrosion layer of buried pipeline |
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|---|---|---|---|---|
| CN2735140Y (en) * | 2004-09-08 | 2005-10-19 | 郜东河 | Anticorrosive abrasion resistant protective layer for external wall of straight-push steel pipe |
| CN1872937A (en) * | 2006-06-30 | 2006-12-06 | 刘彦 | Modified solvent free epoxy binder, and application as laminate layer of reinforced glass-fiber plastic material for corrosion protection of pipe |
| CN201925671U (en) * | 2010-12-23 | 2011-08-10 | 杭州顺隆胶辊有限公司 | Embedded pipeline |
| CN202158307U (en) * | 2011-07-26 | 2012-03-07 | 华东管道设计研究院 | Pipeline with anti-corrosive layer compounded by double-layer fusion bonded epoxy and polyethylene |
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2015
- 2015-12-16 CN CN201510955595.0A patent/CN105423067A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2735140Y (en) * | 2004-09-08 | 2005-10-19 | 郜东河 | Anticorrosive abrasion resistant protective layer for external wall of straight-push steel pipe |
| CN1872937A (en) * | 2006-06-30 | 2006-12-06 | 刘彦 | Modified solvent free epoxy binder, and application as laminate layer of reinforced glass-fiber plastic material for corrosion protection of pipe |
| CN201925671U (en) * | 2010-12-23 | 2011-08-10 | 杭州顺隆胶辊有限公司 | Embedded pipeline |
| CN202158307U (en) * | 2011-07-26 | 2012-03-07 | 华东管道设计研究院 | Pipeline with anti-corrosive layer compounded by double-layer fusion bonded epoxy and polyethylene |
Non-Patent Citations (1)
| Title |
|---|
| 国家石油和化学工业局: "石油化工设备和管道涂料防腐蚀技术规范", 《中华人民共和国行业标准》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371055A (en) * | 2015-12-17 | 2016-03-02 | 七台河宝泰隆煤化工股份有限公司 | Strengthened anti-corrosion layer of buried pipeline |
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Application publication date: 20160323 |