CN205173737U - Corrosion resistant steel pipe - Google Patents
Corrosion resistant steel pipe Download PDFInfo
- Publication number
- CN205173737U CN205173737U CN201420411896.8U CN201420411896U CN205173737U CN 205173737 U CN205173737 U CN 205173737U CN 201420411896 U CN201420411896 U CN 201420411896U CN 205173737 U CN205173737 U CN 205173737U
- Authority
- CN
- China
- Prior art keywords
- layer
- steel pipe
- steel tube
- thickness
- corrosive steel
- 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
Abstract
The utility model discloses a corrosion resistant steel pipe, including the steel pipe body, the outer wall of steel pipe body is equipped with epoxy powder layer, gluing agent layer, intermediate level and counter weight layer in proper order. Wherein, the intermediate level is polyethylene and/or polypropylene layer, the counter weight layer is grit, cement and blocking material's mixture coating, and blocking material is reinforcing bar or steel mesh. Wherein, epoxy powder layer, gluing agent layer and intermediate level make the steel pipe have the anticorrosive ability of the sea water intrusion of preventing, the counter weight layer can make stable the keeping on the sea bed of corrosion resistant steel pipe, and has very strong bearing capacity. In process of production, can also be according to the technical requirement of different seabeds environment, the proportion and the density of adjusting each material of counter weight layer to make above -mentioned corrosion resistant steel pipe can be applicable to different seabed environment, adaptability is stronger.
Description
Technical field
The utility model relates to corrosion-proof technology for pipeline field, particularly relates to a kind of anti-corrosive steel tube that can use in seabed.
Background technique
Conveyance conduit (comprising crude oil, rock gas, coal gas, part of running water pipeline) has been widely used in the industries such as petroleum gas, petrochemical industry, salt chemical engineering, electric power and metallurgy.At present, the conveyance conduit of the domestic overwhelming majority all have employed aseptic technic, and its anticorrosive coat guard time, from about average ten years, extends to 30 years even longer time.But traditional anti-corrosive steel tube is due to its lighter in weight, and bearing capacity is lower and resistant to sea water erosiveness is more weak, and is not suitable for as seabed conveyance conduit and is layed in seabed.
Model utility content
Based on this, be necessary for the problems referred to above, a kind of anti-corrosive steel tube that can be applicable at seabed Long-Time Service is provided.
A kind of anti-corrosive steel tube, comprise steel pipe body, the outer wall of described steel pipe body is provided with epoxy powder layer, adhesive layer, mesosphere and weight coating successively; Described mesosphere is polyethylene and/or polypropylene layer, and described weight coating is the mixture coating of sandstone, cement and reinforcement material, and described reinforcement material is reinforcing bar or steel mesh; The inwall of described steel pipe body is provided with undercoating, and described undercoating is the thick slurry enamelled coating of epoxy.
In preferred version, described internally coated thickness is 0.05mm-0.6mm.
In preferred version, the thickness of described epoxy powder layer is 0.05mm-0.3mm.
In preferred version, described adhesive layer is at least one in vinyl acetate copolymer layer, epoxy polyurethane layer and polyolefin layer.
Preferred version moderate is 0.1mm-0.3mm.
In preferred version, the thickness in described mesosphere is 1.2mm-15mm.
In preferred version, the thickness of described weight coating is 20mm-150mm.
In preferred version, the thickness of described weight coating is 80mm-90mm.
Above-mentioned anti-corrosive steel tube, is located at the epoxy powder layer on steel pipe body outer wall face, adhesive layer, mesosphere and weight coating.Wherein, epoxy powder layer, adhesive layer and mesosphere make steel pipe have to prevent the antiseptic power of sea water intrusion; Weight coating is the mixture coating of sandstone, cement and reinforcement material, and reinforcement material is withstand voltage reinforcing bar or steel mesh.Above-mentioned weight coating can make stable the remaining on sea bed of anti-corrosive steel tube, and has very strong bearing capacity.Meanwhile, in process of production, can according to the technical requirements of different environments such as subsea, regulate proportion and the density of each material of weight coating, thus enable above-mentioned anti-corrosive steel tube be applicable to different environments such as subsea, adaptability is stronger.
Accompanying drawing explanation
Fig. 1 is the structural representation of anti-corrosive steel tube.
Wherein, each components and parts reference numeral is listed as follows:
100, anti-corrosive steel tube 110, steel pipe body
120, epoxy powder layer 130, adhesive layer
140, mesosphere 150, weight coating
160, undercoating
Embodiment
Please refer to the drawing 1, be the structural representation of anti-corrosive steel tube, above-mentioned anti-corrosive steel tube 100 comprises steel pipe body 110, and the outer wall of steel pipe body 110 is provided with epoxy powder layer 120, adhesive layer 130, mesosphere 140 and weight coating 150 successively.
Wherein, the thickness of epoxy powder layer 120 is preferably 0.05mm-0.3mm.Adhesive layer 130 is at least one in vinyl acetate copolymer layer, epoxy polyurethane layer and polyolefin layer.Its thickness is preferably 0.1mm-0.3mm.Mesosphere 140 can be polyethylene layer, and also can be polypropylene layer, in other embodiments, mesosphere be divided into again two-layer, i.e. polyethylene layer and polypropylene layer, and coating order is not between the two arranged.Further, the thickness in mesosphere is preferably 1.2mm-15mm.Above-mentioned epoxy powder layer 120, adhesive layer 130 and mesosphere 140 can make steel pipe have the antiseptic power preventing sea water intrusion.
Weight coating 150 installs for submarine pipeline and run duration provides required negative buoyancy, and meanwhile, it can also provide necessary mechanical protection for anti-corrosive steel tube.Wherein, weight coating 150 is the mixture coating of sandstone, cement and reinforcement material, and reinforcement material is reinforcing bar or steel mesh.The thickness of weight coating is 20mm-150mm, and in a preferred embodiment, the thickness of weight coating is 80mm-90mm.
Wherein, sandstone is high-grade plot silica sand, and its impurity content meets the requirement of ASTMC33 and ASTMC40.Cement is preferably broken special blue cement, and meets ASTMC50V (5) type requirement, and alkali content is no more than 0.6% at most, and tricalcium aluminate content is no more than 5%.Reinforcement material, according to the requirement of ASTMA82 or ASTMA4185, uses reinforcing bar or steel mesh to reinforce.In addition, reinforcement material also includes reinforcing network cushion block according to actual conditions, and this reinforcing network cushion block is required to be nonmetal, insulation and its basal area needs enough large, thus can prevent from causing Indentation Damage to anticorrosive coat.
In process of production, can also according to the technical requirements of different environments such as subsea, regulate proportion and the density of each material of weight coating 150, thus make anti-corrosive steel tube 100 can be applicable to the sea bed of different heights and varying environment, adaptability is stronger.
In order to strengthen the corrosion-resistant dynamics of anti-corrosive steel tube 100, the inwall of steel pipe body 110 is provided with undercoating, and undercoating is the thick slurry enamelled coating of epoxy.Wherein, internally coated thickness is 0.05mm-0.6mm.
In sum, the anti-corrosive steel tube described in present embodiment, above-mentioned anti-corrosive steel tube is coated with the coating of at least four layers of unlike material in steel pipe body outer wall portion, and outermost coating is weight coating.It compares traditional anti-corrosive steel tube, has following beneficial effect:
1, epoxy powder layer, adhesive layer and mesosphere make steel pipe have to prevent the antiseptic power of sea water intrusion;
2, weight coating has higher density, and seawater can be prevented the erosion of inner corrosion-inhibiting coating, thus increases the working life of anti-corrosive steel tube;
3, weight coating is the mixture coating of sandstone, cement and reinforcement material, and reinforcement material is reinforcing bar or steel mesh.Thus higher resistance to compression (seawater pressure) intensity and the impact resistance of excellence can be had;
3, the reinforcement material of weight coating is reinforcing bar or steel mesh, thus makes anti-corrosive steel tube have good bending properties.
4, the proportion of weight coating is heavier, can make anti-corrosive steel tube stable remain on sea bed;
5, by regulating proportion and the density of each material of weight coating, anti-corrosive steel tube can be made to be applicable to different environments such as subsea, and adaptability is stronger.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. an anti-corrosive steel tube, is characterized in that, comprises steel pipe body, it is characterized in that, the outer wall of described steel pipe body is provided with epoxy powder layer, adhesive layer, mesosphere and weight coating successively; Described mesosphere is polyethylene and/or polypropylene layer, and described weight coating is the mixture coating of sandstone, cement and reinforcement material, and described reinforcement material is reinforcing bar or steel mesh; The inwall of described steel pipe body is provided with undercoating, and described undercoating is the thick slurry enamelled coating of epoxy.
2. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, described internally coated thickness is 0.05mm-0.6mm.
3. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, the thickness of described epoxy powder layer is 0.05mm-0.3mm.
4. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, described adhesive layer is at least one in vinyl acetate copolymer layer, epoxy polyurethane layer and polyolefin layer.
5. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, the thickness of described adhesive layer is 0.1mm-0.3mm.
6. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, the thickness in described mesosphere is 1.2mm-15mm.
7. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, the thickness of described weight coating is 20mm-150mm.
8. a kind of anti-corrosive steel tube according to claim 1, is characterized in that, the thickness of described weight coating is 80mm-90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411896.8U CN205173737U (en) | 2014-07-23 | 2014-07-23 | Corrosion resistant steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411896.8U CN205173737U (en) | 2014-07-23 | 2014-07-23 | Corrosion resistant steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173737U true CN205173737U (en) | 2016-04-20 |
Family
ID=55737731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411896.8U Active CN205173737U (en) | 2014-07-23 | 2014-07-23 | Corrosion resistant steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952985A (en) * | 2016-06-29 | 2016-09-21 | 无锡必胜必精密钢管有限公司 | Steel pipe for firefighting pipeline |
| CN106640877A (en) * | 2016-12-31 | 2017-05-10 | 重庆安特管业有限公司 | Sewage treatment tank connecting structure |
-
2014
- 2014-07-23 CN CN201420411896.8U patent/CN205173737U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952985A (en) * | 2016-06-29 | 2016-09-21 | 无锡必胜必精密钢管有限公司 | Steel pipe for firefighting pipeline |
| CN106640877A (en) * | 2016-12-31 | 2017-05-10 | 重庆安特管业有限公司 | Sewage treatment tank connecting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2014007410A (en) | Corrosion resistant equipment for oil and/or gas applications. | |
| CN205173737U (en) | Corrosion resistant steel pipe | |
| CN202790986U (en) | Ceramic-lined steel tube | |
| CN205207918U (en) | Building wall pipe | |
| CN202521074U (en) | External corrosion-resistant pipeline with double modified asphalt polyolefin layers | |
| CN103980576B (en) | Sea water conveying pipelines corrosion protective lining chloroprene rubber plate | |
| CN204153333U (en) | A kind of anticorrosion seamless steel pipe for boats and ships | |
| CN204386032U (en) | Anti-corrosion anti-rust composite steel pipe | |
| CN204512694U (en) | A kind of high anti-corrosion ductile iron pipe | |
| CN203213265U (en) | Anti-corrosive diffuser for deepsea sewage discharging | |
| CN104154339A (en) | Anticorrosive seamless steel tube used for ship | |
| CN205530169U (en) | Power station pipeline under pressure's protective layer device | |
| CN207314699U (en) | A kind of concrete structure dope layer | |
| CN102744186A (en) | Method for spraying coating and killing coating on surface of oil tank and for jointly preventing corrosion | |
| CN105736847A (en) | Improved oil pipeline | |
| CN204829121U (en) | Acidproof wear -resisting high temperature resistant multiple composite pipe | |
| CN204328252U (en) | A kind of fluid-transporting tubing | |
| CN211450061U (en) | Oil conveying pipe for petroleum transportation | |
| CN103174214A (en) | Anti-corrosion type diffuser used for sewage deep sea discharge | |
| CN105437624A (en) | Pressure-resistant anticorrosion low-carbon steel plate | |
| CN104742421A (en) | Antiskid pressure-resistant low-carbon steel plate | |
| CN203549354U (en) | Corrosion-resistant steel pipe applicable to ocean environment | |
| CN203215097U (en) | Novel long-distance and corrosion-resistant oil pipeline component | |
| CN209705537U (en) | A kind of fluorine silicon anti-corrosion pipe | |
| CN204004825U (en) | A kind of hot galvanizing fuel tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |