CN205226712U - Take compound pipe of mechanical type of connecting hole - Google Patents
Take compound pipe of mechanical type of connecting hole Download PDFInfo
- Publication number
- CN205226712U CN205226712U CN201520905098.5U CN201520905098U CN205226712U CN 205226712 U CN205226712 U CN 205226712U CN 201520905098 U CN201520905098 U CN 201520905098U CN 205226712 U CN205226712 U CN 205226712U
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- pipe
- attachment hole
- base tube
- mechanical type
- carbon steel
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Abstract
The utility model discloses a take compound pipe of mechanical type of connecting hole, including carbon steel parent tube and the corrosion resistant alloy bushing pipe of cover in the carbon steel parent tube, be equipped with the connecting hole on this complex pipe. The utility model discloses take compound pipe of mechanical type of connecting hole, the structure of two -layer metal inside and outside having, the carbon steel parent tube is thicker, and the corrosion resistant alloy bushing pipe is thinner, and take the connecting hole, and this double -metal layer has the inseparable laminating of suitable intensity, the parent tube pressure -bearing, the bushing pipe is corrosion -resistant, and the connecting hole can connected manifolds, various couplings and appearance meter connector, is the mechanical type bimetal composite tube that the price / performance ratio is high.
Description
Technical field
The utility model relates to a kind of composite pipe and preparing technical field, is specifically related to a kind of mechanical type composite pipe with attachment hole.
Background technique
In recent years, due to high pressure resistant, corrosion-resistant etc. the excellent usability of mechanical bimetal composite pipe, mechanical bimetal composite pipe obtained applied widely in oil, chemical industry.Mechanical bimetal composite pipe mainly to be applied outside petroleum gas station in process pipe engineering, but in whole process pipelines, in order to converge the medium of conveying or shunt, arm must be connect, in order to monitor process pipelines, some instrument must be installed, but due to the structure that mechanical bimetal composite pipe is special, scene is perforate not easily, not easily branch pipe welded directly to the run pipe joint or arm, not easily weld instrument connector, cause mechanical bimetal composite pipe cannot connecing arm and instrument being installed, constrain the application of mechanical bimetal composite pipe in petroleum gas station in process pipe engineering.Originally in the application of mechanical type composite pipe, basic employing pre-terminated one section of corrosion resistant alloy pipe or metallurgy type composite pipe, direct perforate branch pipe welded directly to the run pipe and instrument connector on corrosion resistant alloy pipe or metallurgy type composite pipe, such Problems existing is that price is high, in addition because material its mechanical property different is also subject to a definite limitation, the safety coefficient of pipeline lowers.
Model utility content
The purpose of this utility model is to provide a kind of mechanical type composite pipe with attachment hole, solve the not easily perforate of existing machinery formula composite bimetal pipe, not easily branch pipe welded directly to the run pipe joint or arm, not easily weld instrument connector, cause the problem that mechanical bimetal composite pipe cannot connect arm and install instrument.
The technological scheme that the utility model adopts is, a kind of mechanical type composite pipe with attachment hole, and comprise carbon steel base tube and be enclosed within the corrosion resisting alloy bushing pipe in carbon steel base tube, this composite pipe is provided with attachment hole.
Feature of the present utility model is also,
Attachment hole is provided with one or more, and the spacing L >=200mm of adjacent two attachment holes.
Connection hole carbon steel base tube and corrosion resisting alloy bushing pipe gap location seal welding or built-up welding welding.
Attachment hole comprises the base tube hole that bushing pipe attachment hole and carbon steel base tube that corrosion resisting alloy bushing pipe is offered are offered, and the position of bushing pipe attachment hole is corresponding with the position in base tube hole.
The size d2 of bushing pipe attachment hole matches with needing the manifold size be connected; The size d1 in base tube hole is d2+5mm >=d1 >=d2+4mm, groove angle α is 60 ° >=α >=40 °.
The beneficial effects of the utility model are, the mechanical type composite pipe of the utility model band attachment hole, have the structure of inside and outside double layer of metal, carbon steel base tube is thicker, and corrosion resisting alloy bushing pipe is thinner, and band attachment hole, this double-metal layer has fitting tightly of suitable intensity, base tube pressure-bearing, and bushing pipe is corrosion-resistant, attachment hole can connecting branch, various branch pipe connection and instrument connector, is the high mechanical bimetal composite pipe of a kind of cost performance.
Accompanying drawing explanation
Fig. 1 is band 1 attachment hole and attachment hole carries out the mechanical composite tube structural drawing of built-up welding;
Fig. 2 is band 1 attachment hole and attachment hole carries out the mechanical composite tube structural drawing of soldering and sealing;
Fig. 3 is the mechanical composite tube structural drawing of band 2 attachment holes;
Fig. 4 is the structural drawing that attachment hole carries out built-up welding process;
Fig. 5 is the structural drawing that attachment hole carries out Seal welding process;
Fig. 6 is the welded structure figure of the direct connecting branch of composite pipe of the present invention;
Fig. 7 is the welded structure figure of composite pipe of the present invention by Saddle connecting branch.
In figure, 1. carbon steel base tube, 2. corrosion resisting alloy bushing pipe, 3. attachment hole, 3-1 base tube hole, 3-2. bushing pipe attachment hole, 4. attachment hole heap weld seam, 5. attachment hole caulk weld, 6. arm, the 7. attachment weld of composite pipe and arm, the 8. attachment weld of arm and Saddle, 9. Saddle, the 10. attachment weld of Saddle and composite pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The mechanical type composite pipe of the utility model band attachment hole, see Fig. 1,2 and 3, the corrosion resisting alloy bushing pipe 2 comprising carbon steel base tube 1 and be enclosed within carbon steel base tube 1, this composite pipe is provided with attachment hole 3.Corrosion resisting alloy bushing pipe 2 is stainless steel, titanium alloy or Cu alloy material.
Attachment hole 3 is provided with one or more, and the spacing L >=200mm of adjacent two attachment holes 3.
As shown in Fig. 4 or Fig. 5, attachment hole 3 place carbon steel base tube 1 and corrosion resisting alloy bushing pipe 2 gap location seal welding or built-up welding welding.Attachment hole 3 comprises the base tube hole 3-1 that bushing pipe attachment hole 3-2 and carbon steel base tube 1 that corrosion resisting alloy bushing pipe 2 is offered offer, and the position of bushing pipe attachment hole 3-2 is corresponding with the position of base tube hole 3-1.The size d2 of bushing pipe attachment hole 3-2 matches with needing the manifold size be connected; The size d1 of base tube hole 3-1 is d2+5mm >=d1 >=d2+4mm, groove angle α is 60 ° >=α >=40 °.
The mechanical type composite pipe of the utility model band attachment hole, there is the structure of inside and outside double layer of metal, carbon steel base tube 1 is thicker, corrosion resisting alloy bushing pipe 2 is thinner, and band attachment hole 3, this double-metal layer has fitting tightly of suitable intensity, base tube pressure-bearing, bushing pipe is corrosion-resistant, and attachment hole 3 can connecting branch, various branch pipe connection and instrument connector, is the high mechanical bimetal composite pipe of a kind of cost performance.
The mechanical type composite pipe of the utility model band attachment hole prepares in the following manner:
Step 1, first offers base tube hole 3-1 on carbon steel base tube 1, and then to the sand blast of carbon steel base tube 1 internal surface, corrosion resisting alloy bushing pipe 2 outer surface is cleared up; Be enclosed within carbon steel base tube 1 by the resistant alloy bushing pipe 2 after cleaning, adopt hydraulic pressure or air pressure to pressurize to corrosion resisting alloy bushing pipe 2, corrosion resisting alloy bushing pipe 2 produces plastic deformation by compression swelling and makes carbon steel base tube 1 that resiliently deformable occur, and base is served as a contrast and fits tightly together;
Step 2, carry out seal welding at 3-1 place, base tube hole carbon steel base tube 1 and corrosion resisting alloy bushing pipe 2 gap location and form attachment hole caulk weld 5, or built-up welding welding forms attachment hole heap weld seam 4, welding consumables is that (dissimilar metal wlding is ER309LMo to dissimilar metal wlding, ER316L, ERNiCrMo-3, ER2209 or ER385 welding wire) attachment hole caulk weld 5 or attachment hole heap weld seam 4 to carry out dye penetrant inspection, after weld inspection is qualified, corrosion resisting alloy bushing pipe 2 is offered bushing pipe attachment hole 3-2, and the center of bushing pipe attachment hole 3-2 is corresponding with the center of base tube hole 3-1.
The preparation of the mechanical type composite pipe of the utility model band attachment hole, carry out twice perforate, 1st perforate in basic unit, 2nd perforate on lining, twice perforate can realize corrosion resisting alloy bushing pipe 2 bore size and be less than carbon steel base tube 1 bore size, and soldering and sealing and built-up welding can be realized at tapping, ensure that the corrosion resisting property of tapping.
The mechanical type composite pipe of the utility model band attachment hole and arm are connected with two kinds of Placements:
The first Placement is that the welded arm 6 not with reinforcement connects, as shown in Figure 6, this Placement is at the direct branch pipe welded directly to the run pipe 6 in attachment hole 3 place, forms the attachment weld 7 of composite pipe and arm, this Placement is applicable to low and middle pressure pipe system, and the bore of arm is less.
The second Placement is that the welded arm 6 that band is strengthened connects, as shown in Figure 7, this Placement is: in order to improve the bearing capacity of pipeline, the attachment weld 10 of Saddle and composite pipe is first formed at attachment hole 3 place weldolet 8, again by Saddle 9 connecting branch 6, form the attachment weld of arm and Saddle, during this Placement is applicable to and high pressure pipe system.
Claims (5)
1. the mechanical type composite pipe with attachment hole, is characterized in that, comprise carbon steel base tube (1) and be enclosed within the corrosion resisting alloy bushing pipe (2) in described carbon steel base tube (1), this composite pipe is provided with attachment hole (3).
2. the mechanical type composite pipe of band attachment hole according to claim 1, is characterized in that, described attachment hole (3) is provided with one or more, and the spacing L >=200mm of adjacent two attachment holes (3).
3. the mechanical type composite pipe of band attachment hole according to claim 1, is characterized in that, described attachment hole (3) place carbon steel base tube (1) and corrosion resisting alloy bushing pipe (2) gap location seal welding or built-up welding welding.
4. the mechanical type composite pipe of the band attachment hole according to claim 1,2 or 3, it is characterized in that, described attachment hole comprises the base tube hole (3-1) that bushing pipe attachment hole (3-2) and described carbon steel base tube (1) that described corrosion resisting alloy bushing pipe (2) is offered are offered, and the position of described bushing pipe attachment hole (3-2) is corresponding with the position of described base tube hole (3-1).
5. the mechanical type composite pipe of band attachment hole according to claim 4, is characterized in that, the size d2 of described bushing pipe attachment hole (3-2) matches with needing the manifold size be connected; The size d1 of described base tube hole (3-1) is d2+5mm >=d1 >=d2+4mm, groove angle α is 60 ° >=α >=40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905098.5U CN205226712U (en) | 2015-11-12 | 2015-11-12 | Take compound pipe of mechanical type of connecting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905098.5U CN205226712U (en) | 2015-11-12 | 2015-11-12 | Take compound pipe of mechanical type of connecting hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226712U true CN205226712U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520905098.5U Active CN205226712U (en) | 2015-11-12 | 2015-11-12 | Take compound pipe of mechanical type of connecting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351656A (en) * | 2015-11-12 | 2016-02-24 | 海洋石油工程股份有限公司 | Mechanical composite pipe with connection holes and manufacturing method of mechanical composite pipe |
-
2015
- 2015-11-12 CN CN201520905098.5U patent/CN205226712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351656A (en) * | 2015-11-12 | 2016-02-24 | 海洋石油工程股份有限公司 | Mechanical composite pipe with connection holes and manufacturing method of mechanical composite pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |