CN212455896U - High-temperature-resistant large-caliber steel lining tetrafluoro tee joint - Google Patents
High-temperature-resistant large-caliber steel lining tetrafluoro tee joint Download PDFInfo
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- CN212455896U CN212455896U CN202020424323.4U CN202020424323U CN212455896U CN 212455896 U CN212455896 U CN 212455896U CN 202020424323 U CN202020424323 U CN 202020424323U CN 212455896 U CN212455896 U CN 212455896U
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- polytetrafluoroethylene
- backing layer
- anticreep
- welding
- pipe body
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Abstract
The utility model relates to a tubular product for the pipeline specifically discloses a high temperature resistant heavy-calibre steel lining tetrafluoro tee bend, including metal pipe body and polytetrafluoroethylene backing layer, the metal pipe body end all is equipped with the flange, the polytetrafluoroethylene backing layer is become the tubulose by polytetrafluoroethylene board overlap welding to the looks transversal department welding at straight tube and branch pipe is whole, the polytetrafluoroethylene backing layer turns up in flange face department and forms sealed face, the welding of the looks transversal department of metal pipe body has T shape anticreep device, the anticreep device is wrapped up in the polytetrafluoroethylene backing layer, including anticreep strip and short welding column, the anticreep strip is the fishbone form, and what both sides were interrupted is equipped with protrudingly. The utility model discloses an anticreep device has strengthened the cohesion of polytetrafluoroethylene backing layer in intersecting line department, and it can the reinforce to have to bear the negative pressure, and the lining is difficult to be damaged, practical long-life's advantage.
Description
Technical Field
The utility model relates to a tubular product for the pipeline, concretely relates to high temperature resistant heavy-calibre steel lining tetrafluoro tee bend.
Background
The steel lining tetrafluoroethylene tee joint consists of a metal tee joint pipe body and a lining layer on the inner side of the metal tee joint pipe body, and polytetrafluoroethylene has high chemical stability, can resist almost all common strong corrosion chemicals, has the characteristic of high temperature resistance, and is an ideal corrosion material.
The die pressing method is the most common one in polytetrafluoroethylene forming methods, and the existing die pressing polytetrafluoroethylene tee joint technology has the defects of low polytetrafluoroethylene forming pressure, easiness in hollowing, low joint strength at a pipeline intersection line and the like, so that the high-temperature resistant working condition requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be: aiming at the defects of low pressure, easy hollowing, low joint strength at the intersecting line of the pipelines and the like in the prior art, the high-temperature-resistant large-caliber steel lining tetrafluoro tee joint has strong negative pressure bearing capacity, a lining is not easy to damage and the service life is long.
The utility model discloses a following technical scheme realizes, a high temperature resistant heavy-calibre steel lining tetrafluoro tee bend, including metal pipe body and polytetrafluoroethylene backing layer, the metal pipe body end all is equipped with the flange, the polytetrafluoroethylene backing layer is become the tubulose by polytetrafluoroethylene board overlap welding to the looks transversal department welding at straight tube and branch pipe is whole, the polytetrafluoroethylene backing layer turns up in flange face department and forms sealed face, the welding of the looks transversal department of metal pipe body has the anticreep device, the anticreep device is T shape, the anticreep device is wrapped up in the polytetrafluoroethylene backing layer, including anticreep strip and short welding column, the anticreep strip is the fishbone form, and what both sides were interrupted is equipped with protrudingly.
Further, the protrusion is one of the following shapes: triangular, rectangular, trapezoidal, semi-elliptical.
Further, the protrusions on two sides of the section of the anti-dropping strip form an arc or an obtuse angle.
Further, the anti-dropping device is made of stainless steel.
Furthermore, the width of the anti-falling strip is 4-10mm, the thickness of the anti-falling strip is 0.5-2mm, and the overall height of the anti-falling device is 0.5-0.7 times of the thickness of the polytetrafluoroethylene lining layer.
The utility model has the advantages that:
1. the utility model discloses a polytetrafluoroethylene backing layer is welded into the tubulose by polytetrafluoroethylene board overlap joint, pastes with three-way metal pipe body and closely combines together to through the fusion of technologies such as hot plate welding, ultrasonic welding, laser welding with the concatenation face of straight tube and branch pipe, under the effect of external force, make the welding of 3 departments of intersecting line of straight tube 21 and branch pipe 22 be whole, compare in the polytetrafluoroethylene backing layer that the moulding method was made, the utility model discloses be difficult for the hollowing, shaping pressure is high, can adapt to high temperature resistance operating mode requirement.
2. The utility model discloses be equipped with the anticreep device in the intersecting line department of straight tube and branch pipe, in straight tube and branch pipe welding process, wrap up the anticreep device of T shape wherein completely, the combination of straight tube and branch pipe is not influenced in the prominent of anticreep device and the clearance of welded short column, strengthens the cohesion of polytetrafluoroethylene backing layer and metal pipe body simultaneously, reduces high temperature creep.
Drawings
FIG. 1 is a cross-sectional view of a high temperature resistant large diameter steel lining tee of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic structural view of an example of the structure of the anti-separation device;
fig. 4 is a schematic structural diagram of two examples of the section of the anti-dropping device.
In the figure: 1, a metal pipe body; 11, a flange; 2 a polytetrafluoroethylene lining layer; 21, straight pipe; 22 branch pipes; 3 intersecting line; 4, an anti-drop device; 41, a drop-proof strip; 411 is protruded; the stub is welded 42.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, a high temperature resistant large-caliber steel lining tetrafluoro tee joint, includes a metal pipe body 1 and a polytetrafluoroethylene lining layer 2, the end of the metal pipe body 1 is provided with a flange 11, the polytetrafluoroethylene lining layer 2 is welded into a pipe shape by a polytetrafluoroethylene plate in an overlapping manner, and is welded as a whole at an intersection line 3 of a straight pipe 21 and a branch pipe 22, the polytetrafluoroethylene lining layer 2 is turned outwards at the flange 11 face to form a sealing face, an anti-drop device 4 is welded at the intersection line 3 of the metal pipe body 1, the anti-drop device 4 is T-shaped, the anti-drop device 4 is wrapped in the polytetrafluoroethylene lining layer 2 and includes an anti-drop strip 41 and a short welding column 42, the anti-drop strip 41 is fishbone-shaped, and two sides are provided with protrusions 411 discontinuously.
In practical applications, the protrusion 411 has one of the following shapes: triangular, rectangular, trapezoidal, semi-elliptical.
In practical applications, the protrusions 411 on two sides of the section of the anti-dropping strip 41 form an arc or an obtuse angle.
In practical application, the anti-dropping device 4 is made of stainless steel.
In practical application, the width of the anti-falling strip 41 is 4-10mm, the thickness is 0.5-2mm, and the overall height of the anti-falling device 4 is 0.5-0.7 times of the thickness of the polytetrafluoroethylene lining layer 2.
The utility model discloses a theory of operation:
the utility model discloses a polytetrafluoroethylene backing layer 2 is welded into the tubulose by polytetrafluoroethylene board overlap joint, pastes together and closely combines with three-way metal pipe body 1 to through the fusion of technologies such as hot plate welding, ultrasonic welding, laser welding with the concatenation face of straight tube 21 and branch pipe 22, under the effect of external force, make the welding of 3 departments of intersecting line of straight tube 21 and branch pipe 22 be whole, polytetrafluoroethylene backing layer 2 turns up in 11 faces of flange department and forms sealed face, can play the effect of connection seal.
In the welding process of the straight pipe 21 and the branch pipe 22, the T-shaped anti-falling device 4 is completely wrapped, the gap between the protrusion 411 of the anti-falling device 4 and the welding short column 42 does not influence the combination of the straight pipe 21 and the branch pipe 22, the combination force of the polytetrafluoroethylene lining layer 2 and the metal pipe body 1 can be enhanced, and particularly in the weak combination place of the intersecting line 3, the creep deformation of the lining layer at high temperature can be reduced.
To sum up, the utility model discloses it can the reinforce to have the negative pressure of bearing in the use, and the lining is difficult to be damaged, advantages such as long service life.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (5)
1. The utility model provides a high temperature resistant heavy-calibre steel lining tetrafluoro tee bend which characterized in that: including metal pipe body (1) and polytetrafluoroethylene backing layer (2), metal pipe body (1) end all is equipped with flange (11), polytetrafluoroethylene backing layer (2) are become the tubulose by polytetrafluoroethylene board overlap welding to locate to weld as whole at intersecting line (3) of straight tube (21) and branch pipe (22), polytetrafluoroethylene backing layer (2) are in flange (11) face department valgus and are formed sealed face, the welding of intersecting line (3) department of metal pipe body (1) has anticreep device (4), anticreep device (4) are T shape, anticreep device (4) are wrapped up in polytetrafluoroethylene backing layer (2), including anticreep strip (41) and short welding column (42), anticreep strip (41) are the fishbone form, and both sides are interrupted and are equipped with protrudingly (411).
2. The high-temperature-resistant large-caliber steel-lined tetrafluoro tee joint as claimed in claim 1, is characterized in that: the protrusion (411) is one of the following shapes: triangular, rectangular, trapezoidal, semi-elliptical.
3. The high-temperature-resistant large-caliber steel-lined tetrafluoro tee joint as claimed in claim 1, is characterized in that: the protrusions (411) on two sides of the section of the anti-falling strip (41) form an arc or an obtuse angle.
4. The high-temperature-resistant large-caliber steel-lined tetrafluoro tee joint as claimed in claim 1, is characterized in that: the anti-falling device (4) is made of stainless steel.
5. The high-temperature-resistant large-caliber steel-lined tetrafluoro tee joint as claimed in claim 1, is characterized in that: the width of the anti-falling strip (41) is 4-10mm, the thickness is 0.5-2mm, and the overall height of the anti-falling device (4) is 0.5-0.7 times of the thickness of the polytetrafluoroethylene lining layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020424323.4U CN212455896U (en) | 2020-03-27 | 2020-03-27 | High-temperature-resistant large-caliber steel lining tetrafluoro tee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020424323.4U CN212455896U (en) | 2020-03-27 | 2020-03-27 | High-temperature-resistant large-caliber steel lining tetrafluoro tee joint |
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| Publication Number | Publication Date |
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| CN212455896U true CN212455896U (en) | 2021-02-02 |
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| CN202020424323.4U Active CN212455896U (en) | 2020-03-27 | 2020-03-27 | High-temperature-resistant large-caliber steel lining tetrafluoro tee joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135730A (en) * | 2021-12-07 | 2022-03-04 | 安徽新富宝建材有限公司 | Fusion method of glass fibre reinforced plastic pipe and steel flange |
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2020
- 2020-03-27 CN CN202020424323.4U patent/CN212455896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135730A (en) * | 2021-12-07 | 2022-03-04 | 安徽新富宝建材有限公司 | Fusion method of glass fibre reinforced plastic pipe and steel flange |
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