CN206943664U - A kind of Double-metal composite elbow pipe fitting - Google Patents
A kind of Double-metal composite elbow pipe fitting Download PDFInfo
- Publication number
- CN206943664U CN206943664U CN201720633824.1U CN201720633824U CN206943664U CN 206943664 U CN206943664 U CN 206943664U CN 201720633824 U CN201720633824 U CN 201720633824U CN 206943664 U CN206943664 U CN 206943664U
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- China
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- set casing
- pipe fitting
- elbow
- fixed body
- double
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Abstract
The utility model discloses a kind of Double-metal composite elbow pipe fitting, is related to a kind of chemical industry conveyance conduit field.Including outer layer, internal layer, fixing device, pipe fitting；Described outer layer includes first half-shell elbow, the second half-shell elbow, and described first half-shell elbow is fixedly connected with the second half-shell elbow with internal layer, and described fixing device includes fixed body, the first set casing, the second set casing, swivel bolt；Described fixed body is that T-shaped centre is provided with cylindrical type pore space structure, the first described set casing and the second set casing are located at the both sides of T-shaped lower end respectively, and can moving in the radial direction in fixed body, described fixed body excircle is provided with boss, and described swivel bolt is connected with the first set casing and the second set casing respectively by the boss of fixed body.The device can prevent from causing to corrode in course of conveying, and reduce manufacturing cost, connection fastening.
Description
Technical field
It the utility model is related to a kind of chemical industry output channel field, and in particular to a kind of Double-metal composite elbow pipe fitting.
Background technology
As national oil chemical industry, coal chemical industry continue to develop, plumbing installation scale expands therewith, big to pipe diameter
It is larger in 1200 ㎜ heavy caliber weld ell demand.Elbow be the industrial pipelines such as oil, chemical industry important composition component it
One, generally, making the material of elbow has carbon steel, steel alloy, stainless steel.According to its pipeline medium, appropriate material is selected.
If need to typically select stainless steel material for the pipeline for conveying acid-base material, using stainless steel pipes, its throwing time cost is higher,
And existing elbow junction time length loosens unavoidably, can cause numerous unnecessary consequences.
The content of the invention
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Double-metal composite elbow pipe fitting,
That is the matrix material of bend pipe tools is carbon steel, a kind of compound stainless steel material of inwall of bend pipe tools.Bimetallic bend pipe tools have
There are the corrosion resistance of stainless steel and higher intensity, all steel elbow can be substituted, have necessarily at energy-saving aspect
Advantage, can effectively solve the generation of the problems such as manufacturing cost height, connection loosening.
In order to realize above-mentioned target, the utility model adopts the following technical scheme that：
A kind of Double-metal composite elbow pipe fitting, including, outer layer, internal layer, fixing device, pipe fitting；Described outer layer includes the
One half-shell elbow, the second half-shell elbow, described first half-shell elbow is fixedly connected with the second half-shell elbow with internal layer, described
Fixing device include fixed body, the first set casing, the second set casing, swivel bolt；Described fixed body be T-type structure and in
Between be provided with cylindrical type hole, the first described set casing and the second set casing are located at the both sides of T-shaped lower end respectively, and can be in fixation
Body moves in the radial direction, and described fixed body excircle is provided with boss, and described swivel bolt passes through fixed body
Boss is connected with the first set casing and the second set casing respectively, and described outer layer is the outer layer that carbon steel is material, and described is interior
Layer is the internal layer that stainless steel is material.
Further, the bending radius of pipe fitting is 1.8 times of outer layer maximum gauge.
Further, the bent angle alpha of pipe fitting is 45 °, 60 °, 90 °.
Further, first half-shell elbow carries out longitudinal measure with the junction of the second half-shell elbow and is connected.
Further, the both ends of pipe fitting are respectively arranged with identical fixing device.
Further, the minimum diameter of the first set casing is equal with the maximum gauge of the second set casing.
Further, the perpendicular bisector of the perpendicular bisector of the first set casing and the second set casing is located at same straight line
It is interior, and the first set casing outer surface on the perpendicular bisector of the second set casing outer surface with being equipped with swivel bolt.
It is of the present utility model to be beneficial in that：
1）Pipe fitting is made of bi-material layers, and outer layer is carbon steel, and internal layer is stainless steel material, etch-proof same in guarantee
When and can ensure device robustness and stability.
2）Fixing device is provided with the both ends of pipe fitting, makes the connection of pipe fitting and pipe fitting, or pipe fitting and pipeline connection more
Add firmly, prevent from coming off and cause unnecessary loss.
3）The radius of curvature R of bend pipe tools is outer layer diameter D 1.8D, is curved compared to currently used radius of curvature R
Head diameter D 1D, 1.5D elbow is compared, and its circulating resistance is smaller, and the material such as conveying oil gas, soda acid is more smooth.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the profile of the utility model pipe fitting otch；
Fig. 3 is the sectional view of the utility model fixing device；
The implication of reference in figure：
1 it is outer layer, 2 be internal layer, 3 be first half-shell elbow, 4 be the second half-shell elbow, 5 be fixed body, 6 is the first fixation
Shell, 7 be the second set casing, 8 be swivel bolt, 9 be pipe fitting.
Embodiment
The utility model is further described and illustrated with reference to embodiment and accompanying drawing, but is not limited in any form
The system present invention.
Embodiment
A kind of Double-metal composite elbow pipe fitting, it is characterised in that：Including outer layer 1, internal layer 2, fixing device, pipe fitting 9；It is described
Outer layer 1 include first half-shell elbow 3, the second half-shell elbow 4, the described half-shell elbow 4 of first half-shell elbow 3 and second with
Internal layer 2 is fixedly connected, and described fixing device includes fixed body 5, the first set casing 6, the second set casing 7, swivel bolt 8；Institute
The fixed body 5 stated is T-type structure and centre is provided with cylindrical type hole, the first described set casing 6 and the second set casing 7 difference position
In the both sides of T-shaped lower end, and can moving in the radial direction in fixed body 5, the described excircle of fixed body 5 be provided with it is convex
Platform, described swivel bolt 8 is connected with the first set casing 6 and the second set casing 7 respectively by the boss of fixed body 5, described
Outer layer 1 is the outer layer 1 that carbon steel is material, and described internal layer 2 is the internal layer 2 that stainless steel is material.
The matrix material of bend pipe tools is carbon steel, and 2 compound a layer thickness of internal layer is 2~3 ㎜ stainless steel materials.It is manufactured curved
Head pipe fitting inner wall has the decay resistance with identical stainless steel material, and bend pipe tools bearing capacity and intensity are by the material of outer layer 1
Ensure.The material of outer layer 1 is generally conventional carbon steel, and the material of internal layer 2 is generally stainless steel material.
The radius of curvature R of bend pipe tools is the diameter D of outer layer 1 1.8D, is that elbow is straight compared to currently used radius of curvature R
Footpath D 1D, 1.5D elbow is compared, and its circulating resistance is smaller, and the material such as conveying oil gas, soda acid is more smooth.
The bent angle alpha of bend pipe tools can be any angle in 45 °, 60 °, 90 °.
The object of the present invention is achieved like this：A kind of Double-metal composite elbow, including at normal temperatures, using compression molding
Method, bimetallic clad steel plate material is molded into first half-shell elbow 3, the second half-shell elbow 4, through trimming, group to, be welded into
Double-metal composite elbow, and first half-shell elbow 3 carries out longitudinal measure with the junction of the second half-shell elbow 4 and is connected, it is curved
The material of outer layer 1 of head is carbon steel, and the material of internal layer 2 is stainless steel.
The 4 groups of welding methods to weld seam of half-shell elbow of first half-shell elbow 3 and second are to use pipeline automatic welding connection device
Welded, the welder is configured with inductor, automatically adjusts welded gaps.Two half-shell elbow welding bevel angles are
65 °, the internal layer 2 of weld seam is welded using the stainless steel welding stick to match with composite material, makes it have decay resistance；Outer layer
1 weld seam ensures that weld strength is identical with matrix material using being welded with the wlding that matrix material matches.
The 1.8D that the radius of curvature R of the elbow of welding shaping is elbow diameter D, elbow both ends use machine cut
The method of processing, end welding processing is into groove.
Fixing device is arranged on the both ends of pipe fitting 9, makes the first set casing 6 and the second set casing 7 by rotating swivel bolt 8
Move inward, and then the fixed pipeline or bend pipe tools being connected with each other, effectively prevent the junction of pipeline or bend pipe tools from going out
Existing problem.
In the description of scheme, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, it is for only for ease of description this programme and simplifies description, rather than indicates or imply institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative
Importance.
, it is necessary to illustrate in the description of this programme, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in side
Concrete meaning in case.
Technological means disclosed in this programme is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to by with
Upper technical characteristic is combined formed technical scheme.It should be pointed out that for those skilled in the art,
On the premise of this programme principle is not departed from, some improvements and modifications can also be made, these improvements and modifications are also considered as we
The protection domain of case.
Claims (7)
- A kind of 1. Double-metal composite elbow pipe fitting, it is characterised in that：Including outer layer（1）, internal layer（2）, fixing device, pipe fitting（9）； Described outer layer（1）Including first half-shell elbow（3）, the second half-shell elbow（4）, described first half-shell elbow（3）With second Half-shell elbow（4）And internal layer（2）It is fixedly connected, described fixing device includes fixed body（5）, the first set casing（6）, second Set casing（7）, swivel bolt（8）；Described fixed body（5）For T-type structure and it is middle be provided with cylindrical type hole, described first Set casing（6）With the second set casing（7）It is located at the both sides of T-shaped lower end respectively, and can be in fixed body（5）Progress in the radial direction Mobile, described fixed body（5）Excircle is provided with boss, described swivel bolt（8）Pass through fixed body（5）Boss respectively with First set casing（6）With the second set casing（7）It is connected, described outer layer（1）For the outer layer that carbon steel is material（1）, it is described Internal layer（2）For the internal layer that stainless steel is material（2）.
- A kind of 2. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that described pipe fitting（9）It is curved Bilge radius are outer layer（1）1.8 times of maximum gauge.
- A kind of 3. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that described pipe fitting（9）It is curved Bent angle [alpha] is 45 ° or 60 ° or 90 °.
- A kind of 4. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that described first half-shell elbow （3）With the second half-shell elbow（4）Junction carry out longitudinal measure connection.
- A kind of 5. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that described pipe fitting（9）Two End is respectively arranged with identical fixing device.
- A kind of 6. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that the first described set casing （6）Minimum diameter and the second set casing（7）Maximum gauge it is equal.
- A kind of 7. Double-metal composite elbow pipe fitting according to claim 1, it is characterised in that the first described set casing （6）Perpendicular bisector and the second set casing（7）Perpendicular bisector be located in same straight line, and the first set casing（6） Outer surface and the second set casing（7）Swivel bolt is equipped with the perpendicular bisector of outer surface（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633824.1U CN206943664U (en) | 2017-06-02 | 2017-06-02 | A kind of Double-metal composite elbow pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633824.1U CN206943664U (en) | 2017-06-02 | 2017-06-02 | A kind of Double-metal composite elbow pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943664U true CN206943664U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720633824.1U Active CN206943664U (en) | 2017-06-02 | 2017-06-02 | A kind of Double-metal composite elbow pipe fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023729A (en) * | 2017-06-02 | 2017-08-08 | 江苏兴洋管业股份有限公司 | A kind of Double-metal composite elbow pipe fitting |
-
2017
- 2017-06-02 CN CN201720633824.1U patent/CN206943664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023729A (en) * | 2017-06-02 | 2017-08-08 | 江苏兴洋管业股份有限公司 | A kind of Double-metal composite elbow pipe fitting |
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