CN219673546U - Corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe - Google Patents
Corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe Download PDFInfo
- Publication number
- CN219673546U CN219673546U CN202321165235.7U CN202321165235U CN219673546U CN 219673546 U CN219673546 U CN 219673546U CN 202321165235 U CN202321165235 U CN 202321165235U CN 219673546 U CN219673546 U CN 219673546U
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- Prior art keywords
- cross
- shaped
- resistant
- tube
- corrosion
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- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 230000007797 corrosion Effects 0.000 title claims abstract description 21
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 15
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 45
- 239000011248 coating agent Substances 0.000 claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a corrosion-resistant low-temperature-resistant composite seamless stainless steel tube, which comprises an outer tube and a cross-shaped inner tube, wherein a plurality of identical annular grooves are uniformly distributed on the outer surface of the outer tube, and the cross-shaped inner tube is fixedly arranged in the outer tube; the annular groove is used for reducing the contact area between the outer tube and an external object; an arc-shaped concave cavity is formed between every two protrusions on the outer surface of the cross-shaped inner tube, a plurality of identical grooves I are uniformly distributed on the outer surface of each protrusion of the cross-shaped inner tube, and a plurality of identical grooves II are uniformly distributed on the surface of each arc-shaped concave cavity; the first groove and the second groove are used for reducing the contact area between the inner cross-shaped pipe and the inner part of the outer pipe. The utility model can reduce the contact area between the whole body and an external object, and prevent the coating from being damaged, thereby improving the whole anticorrosion capacity and the compression resistance and leading the whole body to have longer service life.
Description
Technical Field
The utility model belongs to the field of seamless steel pipes, and particularly relates to a corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe.
Background
As is well known, a stainless steel seamless tube is a long strip steel material having a hollow cross section and no seam at the periphery, and is required to be used frequently in our daily lives.
However, when the outer surface of the existing corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe contacts other objects, scraping is easy to occur, so that the corrosion-resistant coating is damaged, and the overall service life is influenced.
Therefore, it is very necessary to invent a corrosion-resistant and low-temperature-resistant composite seamless stainless steel tube.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a corrosion-resistant low-temperature-resistant composite seamless stainless steel tube, which comprises an outer tube and a cross-shaped inner tube, wherein a plurality of identical annular grooves are uniformly distributed on the outer surface of the outer tube, and the cross-shaped inner tube is fixedly arranged in the outer tube; the annular groove is used for reducing the contact area between the outer tube and an external object; an arc-shaped concave cavity is formed between every two protrusions on the outer surface of the cross-shaped inner tube, a plurality of identical grooves I are uniformly distributed on the outer surface of each protrusion of the cross-shaped inner tube, and a plurality of identical grooves II are uniformly distributed on the surface of each arc-shaped concave cavity; the first groove and the second groove are used for reducing the contact area between the inner cross-shaped pipe and the inner part of the outer pipe.
Preferably, the outer tube is provided with a cross-shaped cavity and four buffer cavities in a penetrating way, the cross-shaped cavity and the outer tube are coaxial, and the four buffer cavities are uniformly distributed on one circle outside the cross-shaped cavity; the cross-shaped inner tube is fixedly arranged in the cross-shaped cavity.
Preferably, the outer surface of the outer tube and the inner surface of the ring groove are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
Preferably, the inner surfaces of the cross-shaped cavity and the four buffer cavities are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
Preferably, the inner surface and the outer surface of the cross-shaped inner tube and the inner surfaces of the first groove and the second groove are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the arrangement of the outer tube, the cross-shaped inner tube can be prevented from being directly contacted with an external object, the coating on the surface of the cross-shaped inner tube is prevented from being damaged, and the cross-shaped inner tube is prevented from being directly exposed in the air, so that the corrosion resistance of the cross-shaped inner tube is improved; through the arrangement of the annular groove, the contact area between the outer tube and an external object can be reduced, so that the external object cannot contact with the coating inside the annular groove, and the coating inside the annular groove is still intact after the coating outside the annular groove is worn, thereby improving the anti-corrosion capability of the outer tube; through the setting of each recess one and each recess two, when cross form inner tube and outer tube are assembled, can reduce the area of contact between cross form inner tube and the outer tube, prevent that the coating on the cross form inner tube from being damaged, in the in-process of equipment, even if the wear-resisting coating on every arch of cross form inner tube is damaged, but also can not damage the coating of each recess one and each recess two inside to improve the anticorrosive ability of cross form inner tube.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a schematic view of the cross-shaped inner tube structure of the present utility model.
Fig. 3 is a schematic view of the internal structure of the outer tube of the present utility model.
In the figure:
the outer tube 1, the annular groove 2, the cross-shaped inner tube 3, the cross-shaped cavity 4, the buffer cavity 5, the arc-shaped cavity 6, the first groove 7 and the second groove 8.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
The utility model is further described below with reference to the accompanying drawings:
examples:
as shown in fig. 1 to 3:
the utility model provides a corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe, which comprises an outer pipe 1 and a cross-shaped inner pipe 3, wherein a plurality of identical annular grooves 2 are uniformly distributed on the outer surface of the outer pipe 1, the contact area between the outer pipe 1 and an external object can be reduced through the arrangement of the annular grooves 2, the coating on the inner surface of the annular grooves 2 is prevented from being directly contacted with the external object, so that the corrosion resistance of the outer pipe 1 is ensured, the cross-shaped inner pipe 3 is fixedly arranged in the outer pipe 1, the cross-shaped inner pipe 3 can be prevented from being directly contacted with the external object through the arrangement of the outer pipe 1, and meanwhile, the cross-shaped inner pipe 3 is prevented from being directly exposed in the air, so that the corrosion resistance of the cross-shaped inner pipe 3 is ensured; an arc-shaped concave cavity 6 is respectively formed between every two bulges on the outer surface of the cross-shaped inner tube 3, and the contact area between the cross-shaped inner tube 3 and the outer tube 1 can be reduced through the arrangement of the arc-shaped concave cavity 6, so that the scraping of a coating is reduced during assembly, the overall service life of the cross-shaped inner tube is prolonged, a plurality of identical grooves I7 are uniformly distributed on the outer surface of each bulge of the cross-shaped inner tube 3, and a plurality of identical grooves II 8 are uniformly distributed on the surface of each arc-shaped concave cavity 6; the first groove 7 and the second groove 8 are used for reducing the contact area between the cross-shaped inner tube 3 and the inner part of the outer tube 1, and preventing the coatings in the first groove 7 and the second groove 8 from being damaged, thereby prolonging the service life of the cross-shaped inner tube 3.
The outer tube 1 is provided with a cross-shaped cavity 4 and four buffer cavities 5 in a penetrating way, the cross-shaped cavity 4 and the outer tube 1 are coaxial, the cross-shaped inner tube 3 can be effectively limited through the arrangement of the cross-shaped cavity 4, and is prevented from rotating in the using process, so that the stability of the cross-shaped inner tube 3 is improved, the four buffer cavities 5 are uniformly distributed on one circle outside the cross-shaped cavity 4, and through the arrangement of the buffer cavities 5, when the outer tube 1 receives an external object for extrusion, the cross-shaped inner tube 3 can be effectively buffered, pressure is prevented from being directly acted on the cross-shaped inner tube 3, so that the safety of the cross-shaped inner tube 3 is ensured, and meanwhile, when a medium conveyed inside the cross-shaped inner tube 3 needs to be insulated, a corresponding heating medium such as hot air or hot water can be conveyed into the buffer cavity 5, so that the low temperature resistance of the cross-shaped inner tube 3 is improved; the cross-shaped inner tube 3 is fixedly arranged inside the cross-shaped cavity 4.
It should be noted that the anti-corrosion coating and the wear-resistant coating related to the present disclosure all adopt the prior art, and since there are a plurality of different anti-corrosion coating materials and wear-resistant coating materials in the prior art, the later stage only needs to be specifically selected according to the place where the seamless stainless steel tube is used, so that excessive redundant description is not performed here.
In the embodiment, during the use, the cross-shaped inner tube 3 is firstly fixed in the cross-shaped cavity 4 inside the outer tube 1, for example, by welding or bolting, and the coating inside each groove I7 and each groove II 8 cannot contact with the inner surface of the cross-shaped cavity 4 during the process of penetrating the cross-shaped inner tube 3 into the cross-shaped cavity 4, so that after the coating on the outer surface of the cross-shaped inner tube 3 is accidentally worn, the coating inside each groove I7 and each groove II 8 cannot be worn, thereby ensuring the corrosion resistance of the cross-shaped inner tube 3; when the outer tube 1 is in contact with an external object, the contact area of the outer tube 1 and the external object can be reduced due to the arrangement of the annular grooves 2, and the coating on the inner surface of the annular groove 2 is prevented from being in direct contact with the external object, so that the coating inside each annular groove 2 is prevented from being damaged, the corrosion resistance of the outer tube 1 can be effectively ensured, the corrosion resistance of the outer tube 1 is improved, and the corrosion resistance of the cross-shaped inner tube 3 can be ensured; meanwhile, when the outer tube 1 is extruded by an external object, the buffer cavity 5 can be used for effectively buffering, and when the buffer cavity 5 cannot be used for reducing the external pressure, the setting of the cross-shaped inner tube 3 structure can still have the capability of resisting the external pressure, so that the overall compression resistance is improved, and the service life is prolonged.
By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.
Claims (5)
1. The corrosion-resistant low temperature-resistant composite seamless stainless steel tube is characterized in that: the novel steel pipe comprises an outer pipe (1) and a cross-shaped inner pipe (3), wherein a plurality of identical ring grooves (2) are uniformly distributed on the outer surface of the outer pipe (1), and the cross-shaped inner pipe (3) is fixedly arranged inside the outer pipe (1); the annular groove (2) is used for reducing the contact area between the outer tube (1) and an external object; an arc-shaped concave cavity (6) is formed between every two protrusions on the outer surface of the cross-shaped inner tube (3), a plurality of identical grooves I (7) are uniformly distributed on the outer surface of each protrusion of the cross-shaped inner tube (3), and a plurality of identical grooves II (8) are uniformly distributed on the surface of each arc-shaped concave cavity (6); the first groove (7) and the second groove (8) are used for reducing the contact area between the cross-shaped inner tube (3) and the inner part of the outer tube (1).
2. The corrosion-resistant low temperature-resistant composite seamless stainless steel tube according to claim 1, wherein: a cross-shaped cavity (4) and four buffer cavities (5) are formed in the outer tube (1) in a penetrating mode, the cross-shaped cavity (4) and the outer tube (1) are coaxial, and the four buffer cavities (5) are uniformly distributed on one circle outside the cross-shaped cavity (4); the cross-shaped inner tube (3) is fixedly arranged in the cross-shaped cavity (4).
3. The corrosion-resistant low temperature-resistant composite seamless stainless steel tube according to claim 2, wherein: the outer surface of the outer tube (1) and the inner surface of the annular groove (2) are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
4. The corrosion-resistant low temperature-resistant composite seamless stainless steel tube according to claim 2, wherein: the inner surfaces of the cross-shaped cavity (4) and the four buffer cavities (5) are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
5. The corrosion-resistant low temperature-resistant composite seamless stainless steel tube according to claim 2, wherein: the inner surface and the outer surface of the cross-shaped inner tube (3) and the inner surfaces of the grooves I (7) and the grooves II (8) are coated with an anti-corrosion coating and a wear-resistant coating, and the wear-resistant coating is arranged outside the anti-corrosion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165235.7U CN219673546U (en) | 2023-05-12 | 2023-05-12 | Corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165235.7U CN219673546U (en) | 2023-05-12 | 2023-05-12 | Corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673546U true CN219673546U (en) | 2023-09-12 |
Family
ID=87898381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321165235.7U Active CN219673546U (en) | 2023-05-12 | 2023-05-12 | Corrosion-resistant low-temperature-resistant composite seamless stainless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673546U (en) |
-
2023
- 2023-05-12 CN CN202321165235.7U patent/CN219673546U/en active Active
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