CN102679053A - Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe - Google Patents
Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe Download PDFInfo
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- CN102679053A CN102679053A CN2012101629971A CN201210162997A CN102679053A CN 102679053 A CN102679053 A CN 102679053A CN 2012101629971 A CN2012101629971 A CN 2012101629971A CN 201210162997 A CN201210162997 A CN 201210162997A CN 102679053 A CN102679053 A CN 102679053A
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Abstract
The invention discloses a lining type prestress steel cylinder concrete pipe with a corrosion layer on surfaces of a steel cylinder and a pipe, comprising an inner concrete layer, the steel cylinder and an outer cement plaster protective layer sequentially arranged from inside to outside; a pure-zinc coating layer is formed on the outer surface of the steel cylinder; a prestress steel wire is wound on the outer part of the pure-zinc coating layer which is formed on the outer surface of the steel cylinder; and an epoxy coal asphalt anticorrosive layer is formed on the outer part of the outer cement plaster protective layer. The whole structure is simple, scientific and reasonable in design, and simple in manufacture process, and has good durability and corrosion resistance. The lining type prestress steel cylinder concrete pipe with the corrosion layer on surfaces of the steel cylinder and the pipe is the lining type prestress steel cylinder concrete pipe with higher innovativeness.
Description
Technical field
The invention belongs to the prestressed concrete member field, especially a kind of steel cylinder and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat.
Background technique
At present, Prestressed concrete cylinder pipe (being called for short PCCP) is a kind of novel rigid pressure tubing.It is that the strong concrete tube core that has steel cylinder twines reinforcement wire; Spray is with cement mortar protective course; Adopt steel bell and spigot and be welded into one with steel cylinder; Joint socket has the flexible joint that the groove O-ring seal has formed the sliding type cushion rubber, is the composite structure that steel plate, concrete, High Tensile Steel Wire and slush different materials are formed, and has steel and concrete characteristic separately.Prestressed concrete cylinder pipe have bear in external pressure high, joint tighness is good, shock resistance is strong, it is convenient and swift to execute, antiseptic property good, characteristic such as easy to maintenance; Paid close attention to by engineering circle, be mainly used in long distance water transfer main line, pressure inverted-siphon, town water supply engineering, the waterline of pressure, electric power plant circulating water engineering pipeline, pressure blowdown main etc. are arranged.Compare with tubing in the past, have applied widelyly, the economic life is long, anti-seismic performance good, easy for installation, advantage such as the operation expenditure is low, and is water-tight basically.Prestressed concrete cylinder pipe can be divided into two kinds from structural type: a kind of is lined Prestressed concrete cylinder pipe (PCCPL); Promptly at steel cylinder inwall moulding concrete; The direct winding ring orientation prestress steel wire in steel cylinder outside, gunite protective layer and the pipeline processed then; A kind of is embed-type Prestressed concrete cylinder pipe (PCCPE), is steel cylinder is embedded in tube core concrete the inside, then gunite protective layer after twining the ring orientation prestress steel wire on the tube core outer walls of concrete.
But as the concrete member product that is embedded in the edatope, in edatope, if Prestressed concrete cylinder pipe is not taked effective protective measure; Prolongation along with service time; Mortar cover and concrete layer in the corrosive medium intrusion Prestressed concrete cylinder pipe in the edatope of Prestressed concrete cylinder pipe outer wall and in the interior aqueous medium of pipe arrive steel wire and steel cylinder surface, and electrochemical corrosion will take place for steel wire and steel cylinder so; And then can cause the corrosion failure of steel wire and steel cylinder; Perforation taking place reveal even the booster phenomenon, causes a hidden trouble the operational reliability of direct threats pipe-line system can for the safe operation of pipe-line system; Wherein the etching problem of reinforcement wire and steel cylinder is the principal element that influences the structure durability; If steel wire and steel cylinder because of corrosion breakage take place, will directly cause the corrosion failure of Prestressed concrete cylinder pipe, thereby influence the safe operation of whole tubing.This shows and adopt anti-corrosion measure very necessary Prestressed concrete cylinder pipe.
There is following shortcoming in present Prestressed concrete cylinder pipe technology:
The cover coat processing is not carried out on domestic Prestressed concrete cylinder pipe surface at present;, corrosive medium can not effectively protect steel cylinder and concrete outer surface when corroding concrete surface; And then can cause corrosive medium to corrode steel cylinder and steel wire and cause corrosion failure, bring hidden danger for the safe operation of pipeline.
Summary of the invention
The objective of the invention is not carry out cover coat Treatment Technology deficiency for overcoming above-mentioned existing lined Prestressed concrete cylinder pipe steel cylinder and concrete pipe outer surface; Provide a kind of steel cylinder simple in structure, a kind of and tube-surface that the lined Prestressed concrete cylinder pipe of being with anticorrosive coat is arranged, can effectively prolong the working life of Prestressed concrete cylinder pipe.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of steel cylinder and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat; Comprise the internal layer concrete layer, steel cylinder, the outer cement mortar protective course that set gradually from inside to outside; The outer surface of said steel cylinder is provided with pure spelter coating; Pure spelter coating outside on the steel cylinder outer surface is wound with reinforcement wire, and said outer cement mortar protective course outside is provided with epoxy coal tar pitch coating.
Said pure spelter coating adopts the method for electric arc spraying to form in the spraying of steel cylinder outer surface.
The direct application of said epoxy coal tar pitch coating is on outer cement mortar protective course.
Coating can be used as important defence line together; Effectively improve the Prestressed concrete cylinder pipe corrosion resistance; Prolong original life-span of Prestressed concrete cylinder pipe greatly, so the Prestressed concrete cylinder pipe process for treating surface, especially cladding technique extremely is necessary.
The present invention has following beneficial effect:
1, adopt the method for electric arc spraying to spray pure spelter coating in the present invention at the steel cylinder outer surface; Epoxy coal tar pitch coating directly is coated with and is contained on the cement mortar protective course; Carry out two protections, increased the important barrier of twice, convenient in application for the antiseptic property of lined Prestressed concrete cylinder pipe improves.
2, overall structure of the present invention is very simple; Design science is reasonable; Have favorable durability, corrosion resistance; And manufacturing process is simple, and a kind of steel cylinder and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat, are the higher lined Prestressed concrete cylinder pipes of a kind of novelty.
Description of drawings
Fig. 1 is a cross-sectional configuration schematic representation of the present invention;
Fig. 2 is a transverse cross-sectional view of the present invention;
1. internal layer concrete layers wherein, 2. steel cylinder, 3. pure spelter coating, 4. reinforcement wire, 5. outer cement mortar protective course, 6. epoxy coal tar pitch coating.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Like Fig. 1, shown in 2; Steel cylinder and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat; Comprise the internal layer concrete layer 1, steel cylinder 2, the outer cement mortar protective course 5 that set gradually from inside to outside; The outer surface of said steel cylinder 2 is provided with pure spelter coating 3, and pure spelter coating 3 outsides on the steel cylinder outer surface are wound with reinforcement wire 4, and said outer cement mortar protective course 5 outsides are provided with epoxy coal tar pitch coating 6.Pure spelter coating 3 adopts the method for electric arc spraying to form in the spraying of steel cylinder outer surface.
Epoxy coal tar pitch coating 6 direct applications are on outer cement mortar protective course 5.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technological scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (3)
1. steel cylinder and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat; Comprise the internal layer concrete layer, steel cylinder, the outer cement mortar protective course that set gradually from inside to outside; It is characterized in that; The outer surface of said steel cylinder is provided with pure spelter coating, and the pure spelter coating outside on the steel cylinder outer surface is wound with reinforcement wire, and said outer cement mortar protective course outside is provided with epoxy coal tar pitch coating.
2. steel cylinder as claimed in claim 1 and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat, it is characterized in that, said pure spelter coating adopts the method for electric arc spraying to form in the spraying of steel cylinder outer surface.
3. steel cylinder as claimed in claim 1 and tube-surface have the lined Prestressed concrete cylinder pipe of band anticorrosive coat, it is characterized in that the direct application of said epoxy coal tar pitch coating is on outer cement mortar protective course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101629971A CN102679053A (en) | 2012-05-24 | 2012-05-24 | Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101629971A CN102679053A (en) | 2012-05-24 | 2012-05-24 | Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe |
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| Publication Number | Publication Date |
|---|---|
| CN102679053A true CN102679053A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101629971A Pending CN102679053A (en) | 2012-05-24 | 2012-05-24 | Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180084A (en) * | 2013-05-21 | 2014-12-03 | 山东沃特管业有限责任公司 | PCCP (prestressed concrete cylinder pipe) with epoxy resin cement protection layer and production method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060196U (en) * | 1989-11-20 | 1990-08-08 | 南京市水泥制管厂 | Prestressed steel pipe concrete pressure pipe |
| US6325107B1 (en) * | 1994-12-29 | 2001-12-04 | Usui Kokusai Sangyo Kaisha Limited | Metal pipeline having a protective coating layer for an automobile |
| CN2570570Y (en) * | 2001-05-22 | 2003-09-03 | 李志雄 | Corrosion-resistant steel-plastics combined pipe |
| CN102032416A (en) * | 2011-01-19 | 2011-04-27 | 重庆大学 | Steel-pipe-insertion local strengthening trenchless repair method for drainage pipeline with large pipe diameter |
| CN102328344A (en) * | 2011-05-31 | 2012-01-25 | 天津银龙预应力材料股份有限公司 | Method for manufacturing insulated anticorrosive prestressed concrete tubular pile |
| CN102454833A (en) * | 2010-10-29 | 2012-05-16 | 天津市清华恒森管道制造有限公司 | Externally-galvanized internally-plastic-coated composite steel tube |
| CN202660081U (en) * | 2012-05-24 | 2013-01-09 | 山东龙泉管道工程股份有限公司 | Liner type pre-stressed concrete cylinder pipe with anti-corrosion layer on surfaces of cylinder and pipe |
-
2012
- 2012-05-24 CN CN2012101629971A patent/CN102679053A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060196U (en) * | 1989-11-20 | 1990-08-08 | 南京市水泥制管厂 | Prestressed steel pipe concrete pressure pipe |
| US6325107B1 (en) * | 1994-12-29 | 2001-12-04 | Usui Kokusai Sangyo Kaisha Limited | Metal pipeline having a protective coating layer for an automobile |
| CN2570570Y (en) * | 2001-05-22 | 2003-09-03 | 李志雄 | Corrosion-resistant steel-plastics combined pipe |
| CN102454833A (en) * | 2010-10-29 | 2012-05-16 | 天津市清华恒森管道制造有限公司 | Externally-galvanized internally-plastic-coated composite steel tube |
| CN102032416A (en) * | 2011-01-19 | 2011-04-27 | 重庆大学 | Steel-pipe-insertion local strengthening trenchless repair method for drainage pipeline with large pipe diameter |
| CN102328344A (en) * | 2011-05-31 | 2012-01-25 | 天津银龙预应力材料股份有限公司 | Method for manufacturing insulated anticorrosive prestressed concrete tubular pile |
| CN202660081U (en) * | 2012-05-24 | 2013-01-09 | 山东龙泉管道工程股份有限公司 | Liner type pre-stressed concrete cylinder pipe with anti-corrosion layer on surfaces of cylinder and pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180084A (en) * | 2013-05-21 | 2014-12-03 | 山东沃特管业有限责任公司 | PCCP (prestressed concrete cylinder pipe) with epoxy resin cement protection layer and production method |
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Application publication date: 20120919 |