CN201521725U - Composite metal pipe and composite pipeline formed by composite metal pipe - Google Patents
Composite metal pipe and composite pipeline formed by composite metal pipe Download PDFInfo
- Publication number
- CN201521725U CN201521725U CN2009201712949U CN200920171294U CN201521725U CN 201521725 U CN201521725 U CN 201521725U CN 2009201712949 U CN2009201712949 U CN 2009201712949U CN 200920171294 U CN200920171294 U CN 200920171294U CN 201521725 U CN201521725 U CN 201521725U
- Authority
- CN
- China
- Prior art keywords
- pipe
- composite metal
- basal body
- metal
- outer end
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a composite metal pipe comprising an outer pipe and an inner pipe, wherein the outer pipe comprises an outer layer matrix pipe and an outer end pipe connected with the end part of the outer layer matrix pipe; the inner pipe is positioned in the outer pipe, the length of the inner pipe is more than that of the outer layer matrix pipe but less than the total length of the outer pipe, and corresponding to the outer layer matrix pipe, the inner pipe is located with the two ends respectively exceeding two ends of the outer layer matrix pipe to be lapped with the outer end pipe; the outer end pipe and the inner pipe are made from corrosion resistant metal, while the outer layer matrix pipe is made from metal different from the outer end pipe and the inner pipe; and the inner wall of the composite metal pipe consists of the inner wall of the inner pipe and a corresponding inner wall of the outer end pipe. The utility model also discloses a composite pipeline formed by the composite metal pipe. The composite metal pipe greatly reduces the use amount of corrosion resistant metal and can still provide continuous inner wall of corrosion resistant metal so as to meet the requirement for delivering strongly corrosive fluid.
Description
The model utility field
The utility model relates to the multiple tube that a kind of novel multiple tube, particularly composite metal pipe are formed by this composite metal pipe.
Background technique
The most of oil gas fields of China contain CO
2, H
2Korrosionsmediums such as S, CO
2, H
2The S corrosion is the main corrosion type of downhole oil tracheae.Too numerous to enumerate by stopping production stopping transportation, major accident that this class internal corrosion causes.Carry the very strong fluid of corrosivity, often adopt the special metal material pipeline, as Stainless Steel Tube, corrosion resistant alloy pipe etc.But the cost of these tubing is high, has increased operation cost.Developed bimetal tubing, outer tube adopts the ordinary metallic material of relative low price for this reason, and interior pipe adopts the high material of cost, and this tubing is just obtaining progressively to use.This common composite bimetal pipe generally adopts Ordinary Steel or low alloy steel as outer field basal body pipe, and anti-corrosion stainless-steel thin-wall pipe is as inside liner.This thus composite pipe has the advantage of carbon steel tube and Stainless Steel Tube concurrently, and its outer field basal body pipe provides the intensity support, and the internal lining pipe of internal layer has good corrosion prevention performance.The manufacturing of composite pipe comprises machinery compound (comprise hydraulic pressure bulging, mechanical bulging, blast compound etc.), metallurgical compound (comprise centrifugal casting, built-up welding compound) etc.The resiliently deformable of remaining tension force of pipe and outer tube realizes combination in only relying between the machinery composite pipe internal and external layer, the manufacturing efficiency of metallurgy combination composite pipe is low, the cost height, and the thermal distortion problem of pipe even outer tube in above-mentioned two types composite pipe unavoidably will run in manufacture process, complicate fabrication process and equipment are many, and cost of production is still higher.
In addition, the bimetal tube that the particularly mechanical composite algorithm of the composite bimetal pipe of making is made, have following difficulty when at the scene butt joint being installed: (1) composite pipe is because the inner space is little, the root pass of contact medium is welding earlier, this layer welding bead unavoidably is subjected to heating for multiple times, and its corrosion resistance is affected.When outer tube basic unit welds,, must select the higher transition layer weld metal of alloying element, increase the field welding operation easier because the front weld metal is a corrosion resistant alloy; (2) the field welding condition is poor, and pipe can not rotate when especially welding, and is generally the horizontal fixed all-position welding, and it is very big that the rate of dilution of mother metal butt welded seam is influenced by the welding position, and welder's operation easier is big, and quality is difficult for guaranteeing.
The model utility content
The utility model is intended to solve the problems of the technologies described above, and a kind of composite metal pipe is provided, and this composite metal pipe comprises outer tube and interior pipe, wherein: the outer end pipe that outer tube comprises outer basal body pipe and links to each other with outer basal body pipe end; Interior pipe is positioned at outer tube, the length of interior pipe greater than the length of outer basal body pipe less than the total length of outer tube, and interior pipe orientate as with respect to outer basal body pipe in the two ends of pipe exceed respectively outer basal body pipe two ends and with outer end pipe overlap joint; Outer end pipe and interior pipe are made by corrosion resistant metal, and outer basal body pipe is made by the metal that is different from outer end pipe and interior pipe, and the inwall of described metal composite pipe is made of the inwall of interior pipe and the corresponding inwall of outer end pipe.
The utility model provides a kind of continuous multiple tube that is formed by above-mentioned composite metal pipe connection again.
The composite metal pipe that the utility model provides has reduced the consumption of corrosion resistant metal, has simplified manufacture process, greatly reduces manufacture cost under the prerequisite that guarantees the corrosion resistant metal internal layer surface that formation is continuous.
Description of drawings
Describe the utility model in detail below in conjunction with following accompanying drawing:
Fig. 1 is the schematic representation according to an embodiment's of the present utility model metal composite pipe;
Fig. 2 is the schematic representation of the utility model one embodiment's interior pipe;
Fig. 3 is the schematic representation according to another embodiment's of the present utility model metal composite pipe;
Fig. 4 is the sectional drawing along A-A line among Fig. 3;
Fig. 5 is according to the schematic representation of an embodiment metal composite pipe more of the present utility model;
Fig. 6 is the schematic representation of metal composite pipe in manufacture process according to another embodiment of the present utility model.
Embodiment
Fig. 1 shows an embodiment of the present utility model.Pipe 3 and outer tube in composite metal pipe 9 comprises.Outer tube comprises outer basal body pipe 2 and is connected the outer end pipe 1 and 1 ' at outer basal body pipe 2 two ends.Outer basal body pipe 2 can be made of metallic material cheaply, as Ordinary Steel and low alloy steel, or other not anti-corrosion metal relatively.Outer end pipe 1 can be made of relative corrosion resistant metal with 1 ', as stainless steel, nickel-base alloy, ni-fe-based alloy, titanium alloy or other corrosion resistant alloy.Can adopt interconnection technique well known in the art to link together between outer basal body pipe 2 and the outer end pipe 1 and 1 ', can take the mode of welding as shown in the figure.Internal diameter in the joint should be identical with the internal diameter of outer tube other parts, with engaging of pipe in guaranteeing and outer tube.Interior pipe 3 is made of the corrosion resistant metal identical or close with outer end pipe 1 and 1 ' material.Interior pipe 3 and outer end the pipe 1 and 1 ' corrosion resistant metal that is adopted require order from high to low can be selected from titanium alloy, nickel-base alloy, ni-fe-based alloy or stainless steel according to antiseptic property.In pipe 3 be arranged in outer basal body pipe 2 and outer end and manage 1 and be connected with 1 ' and the outer tube that forms, in pipe 3 length be greater than outer basal body pipe 2 length and less than the total length of outer tube, thereby in pipe 3 is orientated as with respect to outer basal body pipe 2 in making the two ends of pipe 3 exceed respectively outer basal body pipe 2 two ends and with outer end pipe 1 and 1 ' overlap joint respectively.The length of pipe 3 in why so selecting, its objective is that managing the concordant situation in outer end with interior pipe and outer end compares, do like this and can save the corrosion-resistant metallic material of making interior pipe, and compare with the concordant situation in the interior pipe and the two ends of outer basal body pipe, simplified the difficulty of site operation composite pipe butt joint, can guarantee to form continuous corrosion-resistant inwall, improve joint quality.Interior pipe 3 can be rolled up bending in advance by sheet material and form.Fig. 2 shows the end elevation of the interior pipe 3 that is prefabricated into by sheet material in embodiment of the present utility model, will leave enough overlap joint surpluses at the curling two ends that join of sheet material, promptly forms overlap joint surplus part 5 on the interior pipe circumference that is prefabricated into.Be to reduce the consumption of corrosion resistant metal, can make the length of outer basal body pipe 2 be far longer than the length of outer end pipe 1 and 1 ', for example, the length of outer basal body pipe 2 can be at least 2 times of length of each outer end pipe.
Fig. 3, Fig. 4 show another embodiment of the present utility model, in this embodiment, also comprise a mesosphere 4 between interior pipe 3 and outer tube.It is compound that the mesosphere 4 that adhesive forms makes that in the embodiment shown in fig. 1 mechanical compound between the inner and outer pipe becomes viscose, improved the adhesive strength of inside and outside metal tube, and while mesosphere 4 makes the compressive strength of composite metal pipe 9 be improved.In another preferred version of the present utility model, mesosphere 4 is the fibrous composite layers that comprise viscose agent and fibre cloth (not shown).The effect of enhancing is played in the adding of fibre cloth on the one hand, also can carry more adhesive on the other hand, makes that the adhesive quality of adhesive is better.
For obtaining better bonding effect, when interior pipe 3 is prefabricated into tubulose by sheet material, between overlap joint surplus part 5, also can scribble adhesive.In addition, being preferably in welding rod spot welding that employing between overlap joint surplus part 5 and interior pipe 3 inwalls contains corrosion resistant metal forms discontinuous solder joint or welding and forms anti-corrosion continuous weld (not shown).Expose with the lap-joint of outer end pipe 1 and 1 ' from interior pipe 3 for the mesosphere of avoiding being solidify to form by adhesive, as shown in Figure 5, pipe 3 seals with the lap-joint of outer end pipe 1 and 1 ' in being preferably in, shown among Fig. 57 and 7 '.Encapsulating method can adopt the welding rod welding that contains corrosion resistant metal and form anti-corrosion weld seam, also can adopt special seal gum or other method.Heat cured viscose agent is preferably adopted in the employed viscose agent of the utility model embodiment, includes but not limited to: Phenol aldehyde resin, epoxy resin glue, polyester resin glue, polyimide resin glue.Fibre cloth can adopt glass fiber cloth, carbon fibre cloth, boron fiber cloth, aryl fiber cloth, alumina fibre cloth, basalt fiber cloth or silicon carbide fiber cloth, but is not limited to this.
The embodiment of each composite metal pipe of above-mentioned employing adhesive has following advantage: the welding in (1) is avoided in the pipe manufacturer process, and as the welding of stainless-steel thin-wall pipe.(2) shape between the inner and outer pipes of composite metal pipe
Claims (7)
1. composite metal pipe, this composite metal pipe comprises outer tube and interior pipe, wherein:
The outer end pipe that outer tube comprises outer basal body pipe and links to each other with outer basal body pipe end;
Interior pipe is positioned at outer tube, the length of interior pipe greater than the length of outer basal body pipe less than the total length of outer tube, and interior pipe orientate as with respect to outer basal body pipe in the two ends of pipe exceed respectively outer basal body pipe two ends and with outer end pipe overlap joint;
Outer end pipe and interior pipe are made by anti-corrosion metal, and outer basal body pipe is made by the metal that is different from outer end pipe and interior pipe, and the inwall of described metal composite pipe is made of the inwall of interior pipe and the corresponding inwall of outer end pipe.
2. composite metal pipe as claimed in claim 1 is characterized in that, described composite metal pipe also comprises the mesosphere between outer tube and interior pipe, and this mesosphere comprises adhesive, and this mesosphere and outer tube, interior pipe closely fit together.
3. composite metal pipe as claimed in claim 2 is characterized in that described mesosphere also comprises fibre cloth, and described fibre cloth winding combines around the outer surface of interior pipe and with the adhesive that applies.
4. as each described composite metal pipe in the claim 1 to 3, it is characterized in that the length of described outer basal body pipe is at least 2 times of length of each outer end pipe.
5. as each described composite metal pipe in the claim 1 to 3, it is characterized in that described outer basal body pipe is made by carbon steel, low alloy steel.
6. as each described composite metal pipe in the claim 1 to 3, it is characterized in that described interior pipe forms the corrosion resistant metal weld seam or adopts sealer to seal with the lap-joint of outer end pipe.
7. continuous multiple tube that connects by each described composite metal pipe among the claim 1-6 and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201712949U CN201521725U (en) | 2009-08-14 | 2009-08-14 | Composite metal pipe and composite pipeline formed by composite metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201712949U CN201521725U (en) | 2009-08-14 | 2009-08-14 | Composite metal pipe and composite pipeline formed by composite metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521725U true CN201521725U (en) | 2010-07-07 |
Family
ID=42507900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201712949U Expired - Fee Related CN201521725U (en) | 2009-08-14 | 2009-08-14 | Composite metal pipe and composite pipeline formed by composite metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876383B (en) * | 2009-04-29 | 2012-12-12 | 北京安科管道工程科技有限公司 | Composite metal pipe and manufacturing method thereof as well as composite pipeline formed therefrom |
-
2009
- 2009-08-14 CN CN2009201712949U patent/CN201521725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876383B (en) * | 2009-04-29 | 2012-12-12 | 北京安科管道工程科技有限公司 | Composite metal pipe and manufacturing method thereof as well as composite pipeline formed therefrom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101876383B (en) | Composite metal pipe and manufacturing method thereof as well as composite pipeline formed therefrom | |
| CN101205994B (en) | Metallic composite pipeline, its manufacture method and continuous etching-resistant pipe formed therefor | |
| CN101776190B (en) | Repair-proof welded connection technology of inner walls of plastic-coated steel tubes | |
| CN201521725U (en) | Composite metal pipe and composite pipeline formed by composite metal pipe | |
| CN206439520U (en) | A kind of composite pipe | |
| CN101270837A (en) | Non-welding flange-connection stainless steel metal flexible pipe and production method | |
| CN102287589A (en) | Steel plastic composite pipe for spirally-wound steel wire reinforcing body and pipe network | |
| CN108548018A (en) | Three step port high-pressure pipe member of continuous fiber reinforced thermoplastic concave | |
| CN201170388Y (en) | Sealing connection structure for variety metal valve | |
| CN201152402Y (en) | Double layer metallic composite tube | |
| CN201420901Y (en) | Stainless composite steel pipe | |
| CN201081053Y (en) | Stainless steel composite tube | |
| CN2887513Y (en) | Mechanical composite pipeline welding chamfer | |
| CN201193744Y (en) | Solderless stainless steel metal hose | |
| CN201757223U (en) | Liner spigot-and-socket composite pipe | |
| CN201420900Y (en) | Brazing stainless composite steel pipe | |
| CN208431465U (en) | A kind of anticorrosion pipeline | |
| CN202349484U (en) | Ring joint corrosion-resistant alloy inner lining combined elbow | |
| CN109773195B (en) | Hot-melting compounding process for metal pipe | |
| CN102644824B (en) | Spherical expansion joint for dual-metal composite pipes and processing method thereof | |
| CN206439510U (en) | A kind of composite bimetal pipe | |
| CN203131235U (en) | Bimetal composite pipe for medium/high-pressure oil gas | |
| CN2839783Y (en) | Equal diameter double-metal welding joint with base pipe steel pipe | |
| CN2559856Y (en) | Reinforced multilayer winding coating steel-plastic composite pipe | |
| CN217224178U (en) | Welding groove structure for strip surfacing welding and composite steel pipe for strip surfacing welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20180814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |