CN102384316A - Bi-metal composite pipe - Google Patents
Bi-metal composite pipe Download PDFInfo
- Publication number
- CN102384316A CN102384316A CN2010102685471A CN201010268547A CN102384316A CN 102384316 A CN102384316 A CN 102384316A CN 2010102685471 A CN2010102685471 A CN 2010102685471A CN 201010268547 A CN201010268547 A CN 201010268547A CN 102384316 A CN102384316 A CN 102384316A
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- pipe
- outer tube
- interior pipe
- composite bimetal
- composite
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Abstract
The invention discloses a bi-metal composite pipe which comprises an outer pipe and an inner pipe, wherein the outer pipe is sleeved on the outer surface of the inner pipe; and a brazing layer is arranged between the outer pipe and the inner pipe to closely fit the outer pipe with the inner pipe into a whole. The invention provides the bi-metal composite pipe which is corrosion resistant and high-pressure resistant, has a good heat transfer effect and high bonding strength and is not easy to strip.
Description
Technical field
The present invention relates to a kind of metal tube, relate in particular to a kind of composite bimetal pipe, be applicable to the connecting tube in the petrochemical equipment.
Background technique
For a long time, be used to carry the pipeline of aggressive medium, the material of corrosion-resistance properties all adopts the compound goods such as composite pipe or container of processing of pure stainless steel, non-ferrous metal, carbon steel or metal and plastics.The deficiency of this based article is that cost is high, thereby is difficult to be widely used.In petrochemical equipment,,, all adopt the Clad Steel Plate manufacturing as the cylindrical shell of equipment body, end socket etc. for the minimizing construction investment that economizes on resources owing in the high-sulfur oils course of working the corrosion-resistant of equipment had relatively high expectations.
Existing composite pipe structure mainly contains:
One, at the inner lining of steel pipe stoneware pipe, this composite pipe wear-resisting property is good, but receives the influence of temperature and external impact force easily, causes shelling and broken phenomenon;
Two, in steel pipe through spreading the mode sintered ceramic certainly, this composite pipe is wear-resisting, but interior finish and tolerance of size are wayward, internal surface peels off situation with generation;
Three, at Stainless Steel Tube liner carbon steel material, this composite pipe can't use in pressurized container.
Summary of the invention
To above-mentioned defective, the objective of the invention is to, provide a kind of corrosion-resistant, high pressure resistant, heat-transfer effect is good, the high composite bimetal pipe that is difficult for peeling off of adhesive strength.
Be to realize that above-mentioned purpose, technological scheme of the present invention are, a kind of composite bimetal pipe comprises outer tube and interior pipe, and outer tube sleeve wherein, is provided with one deck brazing layer and makes two to fasten closely connected being integrated at the outer surface of interior pipe between outer tube and the interior pipe.
Preferential, described outer tube is a seamless steel pipe.
Preferential, described interior pipe is Stainless Steel Tube.
Preferential, the internal surface of described interior pipe is a smooth surface.
Preferential, described interior pipe internal surface is made up of a plurality of semicircles, rectangle or triangle.
Preferential, described brazing layer is the nickel-based brazing layer.
The composite bimetal pipe that the present invention discloses, outer tube adopts seamless steel pipe, has guaranteed that composite pipe has higher withstand voltage properties; Interior pipe adopts Stainless Steel Tube, has guaranteed that composite pipe has corrosion resistance preferably; Connect through brazing layer between outer tube and the interior pipe, make its adhesive strength high, safe in utilization.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 is the composite bimetal pipe structural representation of the embodiment of the invention one;
Fig. 2 is the composite bimetal pipe structural representation of the embodiment of the invention two;
Fig. 3 is the composite bimetal pipe structural representation of the embodiment of the invention three;
Fig. 4 is the composite bimetal pipe structural representation of the embodiment of the invention four;
The mark of each parts is following in the accompanying drawing: 1, outer tube, 2, interior pipe, 3, brazing layer.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
The invention provides a kind of composite bimetal pipe, comprise outer tube 1 and interior pipe 2, the outer surface of pipe 2 wherein, was provided with one deck brazing layer 3 and makes two to fasten closely connected being integrated in outer tube 1 was enclosed between outer tube 1 and the interior pipe 2.
Embodiment of the invention middle external tube 1 adopts seamless steel pipe, has guaranteed that composite pipe has higher withstand voltage properties; Interior pipe 2 adopts Stainless Steel Tubes, has guaranteed that composite pipe has corrosion resistance preferably; Connect through brazing layer 3 between outer tube 1 and the interior pipe 2, described brazing layer 3 is thought the nickel-based brazing layer, and nickel-based solder is used for welding the parts such as stainless steel, refractory steel and refractory alloy of at high temperature working more.Be spirally wound on interior pipe 2 outer surfaces with nickel-based solder paper tinsel band, and it is inserted in the outer tube 1, outer tube 1 is connected through brazing layer 3 with interior pipe 2; Brazing temperature is than the high 30-60 of solder melting point ℃; Soldering is carried out under protection gas, makes its adhesive strength high, safe in utilization.
Fig. 1 is the composite bimetal pipe structural representation of the embodiment of the invention one, and the internal surface of interior pipe 2 is the composite pipe of smooth surface, is applicable to common conveying occasion.
Fig. 2, Fig. 3, Fig. 4 are respectively the composite bimetal pipe structural representations of the embodiment of the invention two, three, four, and the internal surface of interior pipe 2 is made up of a plurality of semicircles, rectangle or triangle respectively, and such structure has good thermal conduction effect.
The above; Be merely embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (6)
1. a composite bimetal pipe comprises outer tube and interior pipe, it is characterized in that, outer tube sleeve wherein, is provided with one deck brazing layer and makes two to fasten closely connected being integrated at the outer surface of interior pipe between outer tube and the interior pipe.
2. composite bimetal pipe according to claim 1 is characterized in that, described outer tube is a seamless steel pipe.
3. composite bimetal pipe according to claim 1 is characterized in that, described interior pipe is Stainless Steel Tube.
4. composite bimetal pipe according to claim 1 is characterized in that, the internal surface of described interior pipe is a smooth surface.
5. composite bimetal pipe according to claim 1 is characterized in that, described interior pipe internal surface is made up of a plurality of semicircles, rectangle or triangle.
6. composite bimetal pipe according to claim 1 is characterized in that, described brazing layer is the nickel-based brazing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102685471A CN102384316A (en) | 2010-08-31 | 2010-08-31 | Bi-metal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102685471A CN102384316A (en) | 2010-08-31 | 2010-08-31 | Bi-metal composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102384316A true CN102384316A (en) | 2012-03-21 |
Family
ID=45824000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102685471A Pending CN102384316A (en) | 2010-08-31 | 2010-08-31 | Bi-metal composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102384316A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215588A (en) * | 2013-04-28 | 2013-07-24 | 上海高斯雷洁激光技术有限公司 | Laser-cladding processing method for increasing abrasive resistance of pipeline inner wall |
| CN105537316A (en) * | 2016-01-15 | 2016-05-04 | 上海天阳钢管有限公司 | Manufacturing method for stainless steel composite tube |
| CN108068404A (en) * | 2016-11-10 | 2018-05-25 | 天津市昊航复合管业有限公司 | A kind of high performance anti-corrosive steel tube |
| CN108231214A (en) * | 2017-12-07 | 2018-06-29 | 广东核电合营有限公司 | Nuclear fuel assembly multiple tube and its manufacturing method |
| CN112045379A (en) * | 2020-09-24 | 2020-12-08 | 上海宇洋特种金属材料有限公司 | Method for manufacturing high-efficiency heat exchange tube of high-pressure boiler |
| CN112146077A (en) * | 2020-09-24 | 2020-12-29 | 上海宇洋特种金属材料有限公司 | High-efficiency internal tooth high-pressure boiler tube |
| CN112756723A (en) * | 2020-12-30 | 2021-05-07 | 中国核电工程有限公司 | Internal pressure brazing method for double sleeves and double-sleeve welding assembly |
-
2010
- 2010-08-31 CN CN2010102685471A patent/CN102384316A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215588A (en) * | 2013-04-28 | 2013-07-24 | 上海高斯雷洁激光技术有限公司 | Laser-cladding processing method for increasing abrasive resistance of pipeline inner wall |
| CN105537316A (en) * | 2016-01-15 | 2016-05-04 | 上海天阳钢管有限公司 | Manufacturing method for stainless steel composite tube |
| CN105537316B (en) * | 2016-01-15 | 2018-06-05 | 上海天阳钢管有限公司 | A kind of manufacturing method of stainless steel composite pipe |
| CN108068404A (en) * | 2016-11-10 | 2018-05-25 | 天津市昊航复合管业有限公司 | A kind of high performance anti-corrosive steel tube |
| CN108231214A (en) * | 2017-12-07 | 2018-06-29 | 广东核电合营有限公司 | Nuclear fuel assembly multiple tube and its manufacturing method |
| CN112045379A (en) * | 2020-09-24 | 2020-12-08 | 上海宇洋特种金属材料有限公司 | Method for manufacturing high-efficiency heat exchange tube of high-pressure boiler |
| CN112146077A (en) * | 2020-09-24 | 2020-12-29 | 上海宇洋特种金属材料有限公司 | High-efficiency internal tooth high-pressure boiler tube |
| CN112756723A (en) * | 2020-12-30 | 2021-05-07 | 中国核电工程有限公司 | Internal pressure brazing method for double sleeves and double-sleeve welding assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |