CN216896210U - Double-layer stainless steel welded pipe - Google Patents
Double-layer stainless steel welded pipe Download PDFInfo
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- CN216896210U CN216896210U CN202123292443.7U CN202123292443U CN216896210U CN 216896210 U CN216896210 U CN 216896210U CN 202123292443 U CN202123292443 U CN 202123292443U CN 216896210 U CN216896210 U CN 216896210U
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Abstract
The utility model provides a double-layer stainless steel welded pipe which comprises a support ring, wherein a through hole is formed in the surface of the support ring, a connecting cylinder is fixedly connected to the inner side of the support ring, an annular groove is formed in the surface of the connecting cylinder, an annular bulge is fixedly connected to the surface of the support ring, a sealing ring is fixedly connected to the inner side of the annular groove, an inner-layer steel pipe is sleeved on the surface of the connecting cylinder, an outer-layer steel pipe is sleeved on the surface of the support ring, a welding layer is arranged at one end of the outer-layer steel pipe, and a heat-insulating filling layer is filled between the outer-layer steel pipe and the inner-layer steel pipe. This double-deck formula stainless steel welded tube through setting up support ring, through-hole, connecting cylinder, ring channel, annular bulge, makes the welded tube have two-layer of inside and outside separation to reached when the welded tube skin receives the collision damage, the sealed intact of inlayer has guaranteed the sealing performance's of welded tube effect.
Description
Technical Field
The utility model relates to the technical field of welded pipes, in particular to a double-layer stainless steel welded pipe.
Background
The welded steel pipe is also called as welded pipe, and is made by welding a steel plate or strip steel after being curled and formed, and is generally 6 meters in length. The welded steel pipe has simple production process, high production efficiency, various types and specifications and less equipment investment, but the general strength is lower than that of a seamless steel pipe. When the welded pipe is used in the fields of gas and liquid transportation and the like, the welded pipe is required to have good sealing performance.
However, the existing stainless steel welded pipe is usually single-layer, and the single-layer stainless steel welded pipe can directly leak after being collided and damaged, so that the sealing performance of the welded pipe is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the existing stainless steel welded pipe is usually single-layer, the single-layer stainless steel welded pipe can be directly leaked after being collided and damaged, and the sealing performance of the welded pipe is poor, the design of the double-layer welded pipe is adopted, the inner-layer welded pipe is well sealed after the outer-layer welded pipe is collided and damaged, and the sealing performance of the welded pipe is improved, the utility model is realized by the following technical scheme: the utility model provides a double-deck formula stainless steel welded tube, includes the support ring, the through-hole has been seted up on the surface of support ring, the inboard fixedly connected with connecting cylinder of support ring, the ring channel has been seted up on the surface of connecting cylinder, the fixed surface of support ring is connected with the annular arch, the inboard fixedly connected with sealing washer of ring channel, the inlayer steel pipe has been cup jointed on the surface of connecting cylinder, outer steel pipe has been cup jointed on the surface of support ring, the one end of outer steel pipe is provided with the welding layer, it has the heat preservation filling layer to fill between outer steel pipe and the inlayer steel pipe.
Furthermore, the two ends of the connecting cylinder protrude out of the support ring, the protruding lengths of the two ends of the connecting cylinder are equal, and the connecting cylinder and the support ring are coaxial.
Furthermore, annular grooves are formed in two ends of the connecting cylinder, and the annular grooves and the connecting cylinder are coaxial.
Furthermore, the inner side of each annular groove is fixedly connected with a sealing ring, the inner side of each sealing ring is fixedly connected with the annular groove, and the outer diameter of each sealing ring is larger than that of each connecting cylinder and is in close contact with the inner side surface of the inner steel pipe.
Further, the sealing ring is made of rubber.
Further, the inner steel pipe contacts with the support ring, a circle of welding layer is arranged at the contact position, outer steel pipes are arranged on the two sides of the annular protrusion and contact with the outer steel pipes, and a circle of welding layer is arranged at the contact position.
Furthermore, the heat-insulating filling layer is made of foam.
The utility model provides a double-layer stainless steel welded pipe. The method has the following beneficial effects:
1. the double-layer stainless steel welded pipe is characterized in that the support ring, the through hole, the connecting cylinders, the annular groove and the annular bulge are arranged, the two sections of inner-layer steel pipes are sleeved on the connecting cylinders at two ends of the support ring, the sealing rings fixedly connected in the annular groove of the connecting cylinders are in close contact with the inner side surfaces of the inner-layer steel pipes, the joints of the inner-layer steel pipes and the connecting cylinders are sealed, the joints of the inner-layer steel pipes and the surfaces of the support ring are welded to form welding layers so that the inner-layer steel pipes and the support ring are fixedly connected, the two sections of outer-layer steel pipes are sleeved on the support rings at two sides of the annular bulge in the same way, the joints are welded to form welding layers so that the annular bulge and the two sections of outer-layer steel pipes are fixedly connected, and the inner-layer steel pipes and the outer-layer steel pipes of one section are welded together in the same way, so that when the outer layer of the welded pipe is damaged due to collision, the sealing of the inner layer is good, and the effect of the sealing performance of the welded pipe is ensured.
2. According to the double-layer stainless steel welded pipe, the weight of the support ring is reduced by arranging the through holes in the support ring, so that the welded pipe is lighter.
3. This double-deck formula stainless steel welded pipe through filling foam heat preservation filling layer between outer steel pipe and inlayer steel pipe, has improved the thermal insulation performance of welded pipe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is a side view of the present invention of FIG. 1;
FIG. 4 is a schematic view of a portion of the support ring of the present invention.
In the figure: 1. a support ring; 2. a through hole; 3. a connecting cylinder; 4. an annular groove; 5. an annular projection; 6. a seal ring; 7. an inner layer steel pipe; 8. an outer layer steel pipe; 9. welding layer; 10. and (5) insulating the filling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Examples of the double-layered stainless steel welded pipe are as follows:
referring to fig. 1-4, a double-layer stainless steel welded pipe comprises a support ring 1 for connecting two sections of inner steel pipes 7 and outer steel pipes 8, and separating the inner steel pipes 7 from the outer steel pipes 8, wherein through holes 2 are formed in the surface of the support ring 1 for reducing mass, a connecting cylinder 3 is fixedly connected to the inner side of the support ring 1, an annular groove 4 is formed in the surface of the connecting cylinder 3, an annular protrusion 5 is fixedly connected to the surface of the support ring 1, a seal ring 6 is fixedly connected to the inner side of the annular groove 4, the inner steel pipes 7 are sleeved on the surface of the connecting cylinder 3, the outer steel pipes 8 are sleeved on the surface of the support ring 1, a welding layer 9 is arranged at one end of each outer steel pipe 8 and used for welding and fixing the joint, and a heat-insulating filling layer 10 is filled between each outer steel pipe 8 and each inner steel pipe 7.
When the welding pipe is used, two sections of inner steel pipes 7 are sleeved on connecting cylinders 3 at two ends of a support ring 1, sealing rings 6 fixedly connected in an annular groove 4 of the connecting cylinder 3 are in close contact with the inner side surfaces of the inner steel pipes 7, the joints of the inner steel pipes 7 and the connecting cylinders 3 are sealed, the joints of the inner steel pipes 7 and the surfaces of the support ring 1 are welded to form welding layers 9, so that the inner steel pipes 7 are fixedly connected with the support ring 1, two sections of outer steel pipes 8 are sleeved on the support ring 1 at two sides of an annular bulge 5 in the same way, the joints are welded to form the welding layers 9, so that the annular bulge 5 is fixedly connected with two sections of outer steel pipes 8, the inner steel pipes 7 and the outer steel pipes 8 of one section are welded together in the same way, and a heat insulation filling layer 10 of foam is filled between the inner steel pipes 7 and the outer steel pipes 8, so that a welding pipe which is good in sealing and heat insulation effects and difficult to leak is formed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a two-layer equation stainless steel welded tube, includes support ring (1), its characterized in that: through-hole (2) have been seted up on the surface of support ring (1), inboard fixedly connected with connecting cylinder (3) of support ring (1), ring channel (4) have been seted up on the surface of connecting cylinder (3), the fixed surface of support ring (1) is connected with annular arch (5), inboard fixedly connected with sealing washer (6) of ring channel (4), inlayer steel pipe (7) have been cup jointed on the surface of connecting cylinder (3), outer steel pipe (8) have been cup jointed on the surface of support ring (1), the one end of outer steel pipe (8) is provided with weld layer (9), it has heat preservation filling layer (10) to fill between outer steel pipe (8) and inlayer steel pipe (7).
2. The double-layered stainless steel welded pipe according to claim 1, wherein: the two ends of the connecting cylinder (3) protrude out of the support ring (1), the protruding lengths of the two ends of the connecting cylinder are equal, and the connecting cylinder (3) and the support ring (1) are coaxial.
3. The double-layer stainless steel welded pipe according to claim 1, characterized in that: annular grooves (4) are formed in two ends of the connecting cylinder (3), and the annular grooves (4) and the connecting cylinder (3) are coaxial.
4. The double-layered stainless steel welded pipe according to claim 1, wherein: every the inboard of ring channel (4) all fixedly connected with a sealing washer (6), the inboard and ring channel (4) fixed connection of sealing washer (6), the external diameter is greater than the external diameter of connecting cylinder (3) to with the inboard surface in close contact with of inlayer steel pipe (7).
5. The double-layered stainless steel welded pipe according to claim 1, wherein: the sealing ring (6) is made of rubber.
6. The double-layered stainless steel welded pipe according to claim 1, wherein: inner steel pipe (7) and support ring (1) contact, and the contact department is provided with round welding layer (9), and the both sides of annular arch (5) all are provided with outer steel pipe (8) and contact rather than, and the contact department is provided with round welding layer (9).
7. The double-layered stainless steel welded pipe according to claim 1, wherein: the heat-insulating filling layer (10) is made of foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123292443.7U CN216896210U (en) | 2021-12-25 | 2021-12-25 | Double-layer stainless steel welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123292443.7U CN216896210U (en) | 2021-12-25 | 2021-12-25 | Double-layer stainless steel welded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216896210U true CN216896210U (en) | 2022-07-05 |
Family
ID=82208524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123292443.7U Active CN216896210U (en) | 2021-12-25 | 2021-12-25 | Double-layer stainless steel welded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216896210U (en) |
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2021
- 2021-12-25 CN CN202123292443.7U patent/CN216896210U/en active Active
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