CN204213496U - A kind of sandwich composite pipe structure - Google Patents
A kind of sandwich composite pipe structure Download PDFInfo
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- CN204213496U CN204213496U CN201420547172.6U CN201420547172U CN204213496U CN 204213496 U CN204213496 U CN 204213496U CN 201420547172 U CN201420547172 U CN 201420547172U CN 204213496 U CN204213496 U CN 204213496U
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Abstract
A kind of sandwich composite pipe structure, its technological points: composite pipe internal and external layer is that titanium thin walled tube is coated on mesosphere steel tube surface, at steel pipe two ends, adopts fastening two the Ti metal tube heads of thread connecting mode; Entire body Rolling compund together, becomes the titanium steel sandwich composite pipe structure be coated on by steel pipe wherein.The two ends of composite pipe are Ti metal tube heads, can directly be welded to connect, and also can be processed into pipe thread and be mechanically connected.In petroleum production, chemical industry, fine chemistry industry, heat exchanger, submarine pipeline conveying, the utility model adopts the complete coated form of Ti metal to keep Ti metal attribute, basic unit's steel pipe of low cost ensures product strength as structure division, composite pipe two ends are Ti metal tube heads, can connect with welding, also can be mechanically connected by processing tube screw thread, highly versatile.The utility model high-performance, low cost, filled up the blank of like product.
Description
Technical field
The utility model relates to a kind of metallic composite correlative technology field, specifically a kind of sandwich composite pipe structure with antisepsis.
Background technique
As everyone knows, metal pipe is widely used, and be mainly used in the conveying of gas and liquid, a part is applied in Structural Hardware.Current application is at most steel pipe, Stainless Steel Tube, copper pipe, aluminum pipe and titanium pipe.Although tubing uses extensively, also there is the many problems of Chu, wherein the most outstanding is corrosion-resistant and self-strength problem simultaneously.
In the petroleum production of oil field, the acid ion in crude oil is a unsolved difficult problem for many years to pipe corrosion, and the corrosion fracture of steel oil well casing often causes oil well to scrap, and ratio is more than 30% of abandoned well; Transport pipe leaks, sometimes bringing on a disaster property loss, and such as petroleum pipeline is because leaking the blast caused.So the liquid state that the material of this type of pipe fitting must be able to be stood in indusion tube corrodes.Ferrous materials, stainless steel material are the erosions can not resisting acid medium, and safety problem is particularly outstanding.
Nuclear power station needs a large amount of cooling waters, is used for carrying out heat exchange.So nuclear power station is often based upon seashore, cool to facilitate acquisition seawater.Steel pipe, Stainless Steel Tube use low to chloride ion corrosion barrier propterty at seawater, have to adopt external coating anti-corrosion material and thicken tube wall to extend the dead time.
Have heat exchanger in large-scale power station power generating equipment, use tubular heat exchanger in a large number, tubing is the important carrier of heat exchange.Traditional heat exchanging tube adopts low carbon steel or the low carbon steel tubing through preservative treatment surface, because heat exchanger media often has corrosivity, tubular heat exchanger due to the reason of material all very short for working life, maintenance and change new equipment and both affected the normal operation of production, increases cost of production again.
At pharmacy and Fine Chemical, product line is transfer line coupled reaction still often, and most production mother liquor is acid medium.The Material texture of indusion tube, technical requirements can not with mother liquor generation chemical reaction.But steel pipe and stainless steel pipe are often not corrosion-resistant, carry out chemical reaction with mother liquor, the material that indusion tube adopts often does not reach technical requirements, and serious affects quality of product.
At present, have the erosion that Ti metal can resist above-mentioned Korrosionsmedium only, the pipe part that Ti metal makes can solve Problems existing in above-mentioned production process well.
Titanium is a kind of silvery white metal, tool metallic lustre, has good anti-corrosion capacity (comprising seawater, chloroazotic acid and chlorine), good high temperature resistant, low temperature resistant, anti-strong acid, anti-highly basic.Ti metal high strength, low density, be described as " space metal ".
Nearly decades, high-end fine chemistry industry enterprise has carried out technical innovation, adopts titanium metal pipe pipe as the structural member of transfer line, fundamentally solves the hard nut to crack that mother liquor erode pipe pipe affects quality of product and device security.The such as former design of Northeast Pharmaceutical Factory production of vitamin C line is stainless steel pipe as production mother liquor transfer line, mother liquor severe contamination phenomenon occurs after running, directly affects the quality of product.Analysis result is that stainless crome metal and nickel dissolve in mother liquor and causes.Carried out the transformation of production line material afterwards, and be all replaced by titanium metal material, and never again the contaminated phenomenon of mother liquor had occurred after running, equipment runs and still normally works so far.
The heat exchanger that Ti metal makes, fundamentally solves the problem of safety in production, improves heat exchange efficiency simultaneously.
Due to Ti metal resisting sea water erosion excellent performance, current ocean engineering adopts Ti metal tubing in a large number in pipeline conveying.
But titanium metal pipe is expensive, during engineer applied, Cost Problems is particularly outstanding.
Summary of the invention
The purpose of this utility model is to provide a kind of sandwich composite pipe structure, namely ensure that the structural strength of composite pipe, fundamentally solves again the problem that pure titanium metal tubing price is high and rigidity is poor.
The utility model is achieved in that a kind of sandwich composite pipe structure, it includes Low Carbon Steel Pipe, it is characterized in that: be threaded at the two ends of Low Carbon Steel Pipe a Ti metal tube head respectively, interior titanium thin-walled tube layer and outer titanium thin-walled tube layer is respectively arranged with on the inside and outside surface of described Low Carbon Steel Pipe, and the two ends of interior titanium thin-walled tube layer and outer titanium thin-walled tube layer are fixedly connected on corresponding Ti metal tube head respectively, and be coated on airtight for Low Carbon Steel Pipe in the space of Ti metal.
Material selected by said structure determines as required, and specifically Ti metal comprises: pure titanium TA0, pure titanium TA1, pure titanium TA2; Described Low Carbon Steel Pipe material is: Q235,16Mn, No. 20 steel, 20g boiler steel.
Structure of the present utility model is at the inner and outer surface of steel pipe and steel pipe two ends coated titanium metal, wherein inner and outer surface adopts the method compound of rolling to become sandwich stratiform structure, two ends adopt mechanical fasteners Placement through Rolling compund together, entire body Rolling compund is wherein airtight by steel pipe, becomes titanium steel titanium sandwich composite pipe structure.
During composite pipe bearing load, steel pipe plays a major role, and composite pipe anti-corrosion function mainly Ti metal works.
Composite pipe can adopt welding manner to connect, and screw threads for fastening also can be adopted to connect, and also can connect by welded flange.
Composite pipe using scope: tubular heat exchanger, the liquid delivery tube of petrochemical industry, fine chemistry industry, pharmaceutical industry, petroleum production industry oil well casing, oil pick-up tube.
Economic benefit: titanium steel titanium sandwich composite pipe structure can substitute Ti metal tubing and use, and can significantly reduce costs.According to cost-efficiency analysis, stainless steel pipe can be replaced completely.Particularly in the food and medicine quality safety of fine chemistry industry, pharmaceutical industry, the necessity that titanium steel composite pipe replaces stainless steel pipe is particularly outstanding.
In order to meet the different requirements of market to pipe performance, titanium steel titanium sandwich structure composite pipe product variety is different.Mainly be divided into the anticorrosion tubing of low pressure, the anticorrosion tubing of middle pressure and the several series of structural anticorrosion tubing.
The utility model is for reducing application cost, not only there is the corrosion resistance of titanium pipe, and there is the intensity of common steel tube, the structural behaviour of product, antiseptic property can either be ensured, fall and increase the service life, save again a large amount of Ti metals, considerably reduce cost of production.
The advantage that the utility model has and positive technique effect are: basic unit, the coating thickness of composite pipe are unrestricted.Composite pipe adopts the complete coated form of Ti metal to keep Ti metal attribute, basic unit's steel pipe of low cost ensures product strength as structure division, composite pipe two ends are Ti metal tube heads, can connect with welding, also can be mechanically connected by processing tube screw thread, high-performance, low cost, filled up the blank of like product.
Accompanying drawing explanation
Fig. 1 is structural representation sketch of the present utility model.
Accompanying drawing main mark illustrates:
The outer titanium thin-walled tube layer of 1-; 2-Low Carbon Steel Pipe; Titanium thin-walled tube layer in 3-; 4-Ti metal tube head.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example is only the utility model example wherein; do not represent the right protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
Embodiment
As shown in Figure 1, in figure 2 is Low Carbon Steel Pipe, be threaded at the two ends of Low Carbon Steel Pipe 2 a Ti metal tube head 4 respectively, interior titanium thin-walled tube layer 3 and outer titanium thin-walled tube layer 1 is respectively arranged with on the inside and outside surface of described Low Carbon Steel Pipe 2, and the two ends of interior titanium thin-walled tube layer 3 and outer titanium thin-walled tube layer 1 are fixedly connected on corresponding Ti metal tube head 4 respectively, and be coated on airtight for Low Carbon Steel Pipe 1 in the space of Ti metal.
Radial dimension: titanium pipe D108/d107--carbon steel tube D107/d87--titanium pipe D87/d86, length 9000, two ends processing tube screw thread and welded flange.
Summary production method:
Composite pipe internal and external layer of the present utility model is that titanium thin walled tube is coated on mesosphere steel tube surface, at steel pipe two ends, adopts thread connecting mode to coordinate two isometrical Ti metal tube heads; Entire body Rolling compund together, becomes the titanium steel sandwich composite pipe structure be coated on by steel pipe wherein.The two ends of composite pipe are Ti metal tube heads, can directly be welded to connect, and also can be processed into pipe thread and be mechanically connected.
Composite pipe of the present utility model can substitute Ti metal tubing, the titanium coating (thickness is 0.05 ~ 2 millimeter) of inner and outer surface and two ends Ti metal tube head are through welding, rolling airtight integrative-structure together, be coated on outer wall of steel pipe, ensure that external environment condition can not touch steel pipe.
When composite pipe is by pulling force, accepted by the Ti metal tube head at two ends, the screw connection point that pulling force is combined through rolling by tube head and steel pipe from the tube head of one end and whole composite pipe matrix are delivered to the other end tube head.Each root composite pipe, all through tensile test, is selected according to test report during use.
When composite pipe bears overpressure, the sandwich structure of tube wall ensures use safety.Nominal pressure is that thickness of steel pipe determines.
Composite pipe decay resistance is the Ti metal structure of relying on composite pipe surface.Pipe thickness determines working life and safety.
The composite pipe condition of delivery is vacuum tempering heat treatment.
Titanium thin-walled tube layer is 1 ~ 1.5:6 ~ 20 with the thickness range ratio of Low Carbon Steel Pipe; And length range is between 1 meter-20 meters.
Claims (4)
1. a sandwich composite pipe structure, it includes Low Carbon Steel Pipe, it is characterized in that: be threaded at the two ends of Low Carbon Steel Pipe a Ti metal tube head respectively, interior titanium thin-walled tube layer and outer titanium thin-walled tube layer is respectively arranged with on the inside and outside surface of described Low Carbon Steel Pipe, and the two ends of interior titanium thin-walled tube layer and outer titanium thin-walled tube layer are fixedly connected on corresponding Ti metal tube head respectively, and be coated on airtight for Low Carbon Steel Pipe in the space of Ti metal.
2. sandwich composite pipe structure according to claim 1, is characterized in that: the thickness of described interior titanium thin-walled tube layer and outer titanium thin-walled tube layer is 0.05 ~ 2 millimeter.
3. sandwich composite pipe structure according to claim 1 and 2, is characterized in that: described titanium thin-walled tube layer is 1 ~ 1.5:6 ~ 20 with the thickness range ratio of Low Carbon Steel Pipe; And length range is between 1 meter-20 meters.
4. sandwich composite pipe structure according to claim 1, is characterized in that: Ti metal comprises: pure titanium TA0, pure titanium TA1, pure titanium TA2; Described Low Carbon Steel Pipe material is: Q235,16Mn, No. 20 steel, 20g boiler steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547172.6U CN204213496U (en) | 2014-09-22 | 2014-09-22 | A kind of sandwich composite pipe structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547172.6U CN204213496U (en) | 2014-09-22 | 2014-09-22 | A kind of sandwich composite pipe structure |
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| CN204213496U true CN204213496U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420547172.6U Active CN204213496U (en) | 2014-09-22 | 2014-09-22 | A kind of sandwich composite pipe structure |
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| CN (1) | CN204213496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151696A (en) * | 2016-08-30 | 2016-11-23 | 常熟市双羽铜业有限公司 | A kind of extendible titanium alloy composite tube |
-
2014
- 2014-09-22 CN CN201420547172.6U patent/CN204213496U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151696A (en) * | 2016-08-30 | 2016-11-23 | 常熟市双羽铜业有限公司 | A kind of extendible titanium alloy composite tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: 110000 25-3, Guangchang Road, Shenhe District, Liaoning, Shenyang, China 3-3-2 Patentee after: Yan Gengxu Address before: 050003 room No. 3, building 27, Heping West Road, Xinhua District, Hebei, Shijiazhuang 201, China Patentee before: Zhang Senlin |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170306 Address after: Hunnan District of Shenyang City, Liaoning province 110000 new long street, room 105 No. 10-1 Patentee after: Shenyang Titanium Equipment Manufacturing Co., Ltd. Address before: 110000 25-3, Guangchang Road, Shenhe District, Liaoning, Shenyang, China 3-3-2 Patentee before: Yan Gengxu |
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| TR01 | Transfer of patent right |