CN220037727U - Double-wall corrugated pipe - Google Patents
Double-wall corrugated pipe Download PDFInfo
- Publication number
- CN220037727U CN220037727U CN202321408736.3U CN202321408736U CN220037727U CN 220037727 U CN220037727 U CN 220037727U CN 202321408736 U CN202321408736 U CN 202321408736U CN 220037727 U CN220037727 U CN 220037727U
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- China
- Prior art keywords
- pipe
- spiral
- double
- pipe body
- heat
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- 238000009413 insulation Methods 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000007710 freezing Methods 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
The utility model relates to the technical field of corrugated pipes, in particular to a double-wall corrugated pipe, which comprises a cylindrical hollow inner pipe, an outer pipe with a spiral bulge on the surface and a spiral reinforcing pipe spirally arranged on the outer pipe, wherein a cavity is formed between the inner pipe and the outer pipe, and a heat preservation and insulation layer is arranged in the cavity; in practical application, the spiral reinforcing pipe is arranged on the outer pipe, so that the strength of the pipe body is effectively enhanced, and the service life is longer; the heat preservation and insulation layer is arranged in the cavity between the inner pipe and the outer pipe, so that the situation that the water accumulation in the pipe body is frozen and the water drainage is influenced is prevented; the utility model can effectively strengthen the strength of the pipe body, has longer service life, can isolate the temperature inside and outside the pipe body, and can prevent the occurrence of ponding freezing in the pipe body and the occurrence of water drainage.
Description
Technical Field
The utility model relates to the technical field of corrugated pipes, in particular to a double-wall corrugated pipe.
Background
The corrugated pipe is used as a flexible pressure-resistant pipe fitting and is arranged in a liquid conveying system for compensating the mutual displacement of connecting ends of a pipeline, a machine and equipment, absorbing vibration energy, playing roles of vibration reduction, noise reduction and the like, and has the characteristics of good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance and the like.
The prior Chinese patent with the bulletin number of CN204729787U discloses a double-wall corrugated pipe, which comprises a pipe body, wherein the pipe body consists of an outer corrugated pipe and an inner pipe, and is characterized in that a protection plate is arranged between the outer corrugated pipe and the inner pipe, a reinforcing convex ring is arranged at the crest of the outer corrugated pipe, pipe sleeves are arranged at the socket end and the socket end of the pipe body, a clamping groove is formed in the outer wall surface of the pipe sleeve, and a clamp is arranged in the clamping groove to realize the fixed connection of the double-wall corrugated pipe. The utility model can effectively improve the wear resistance and the protection performance, and is rapid and convenient to assemble.
However, the double-wall corrugated pipe has the following problems in practical application: firstly, in some places with severe geographical conditions and frequent sedimentation, the part between two adjacent reinforcing convex rings is easy to damage, and the service life of the product is influenced; secondly, in cold areas, the inside of the double-wall corrugated pipe is easy to be frozen by accumulated water, and the drainage effect is affected.
Disclosure of Invention
The utility model aims to overcome the defects, and provides the double-wall corrugated pipe which can not only effectively strengthen the strength of the pipe body and prolong the service life, but also isolate the temperature inside and outside the pipe body and prevent the water accumulation from freezing inside the pipe body and the water drainage from being influenced.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the double-wall corrugated pipe comprises a cylindrical hollow inner pipe, an outer pipe with a spiral bulge on the surface and a spiral reinforcing pipe arranged on the outer pipe in a spiral mode, a cavity is formed between the inner pipe and the outer pipe, and a heat preservation and insulation layer is arranged in the cavity.
Further, a spiral channel is arranged in the spiral reinforcing pipe, heat-insulating gas is arranged in the spiral channel, laminated films are respectively arranged at two ends of the spiral channel, and the laminated films are used for blocking gas from overflowing.
Further, the insulating gas is nitrogen.
Further, the heat preservation and insulation layer is a plurality of heat insulation particles, and the particle size range of the heat insulation particles is 1.5-4.5mm.
Furthermore, the two ends of the pipe body are also provided with plug-in parts.
Further, the spiral bulge is provided with wave crests, the spiral reinforcing pipe is wound in the wave troughs between the adjacent wave crests, and the distance between the adjacent wave crests is not more than one fifth of the pipe diameter.
The beneficial effects of the utility model are as follows:
in practical application, the spiral reinforcing pipe is arranged on the outer pipe, so that the strength of the pipe body is effectively enhanced, and the service life is longer; the heat preservation and insulation layer is arranged in the cavity between the inner pipe and the outer pipe, so that the situation that the water accumulation in the pipe body is frozen and the water drainage is influenced is prevented; the utility model can effectively strengthen the strength of the pipe body, has longer service life, can isolate the temperature inside and outside the pipe body, and can prevent the occurrence of ponding freezing in the pipe body and the occurrence of water drainage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
reference numerals: an inner tube 1; an outer tube 2; a peak 21; a spiral reinforcement tube 3; a heat-insulating layer 4; a plug-in part 5.
Detailed Description
As shown in fig. 1, 2 and 3, the double-wall corrugated pipe comprises a cylindrical hollow inner pipe 1, an outer pipe 2 with a spiral bulge on the surface, and a spiral reinforcing pipe 3 spirally arranged on the outer pipe 2, wherein a cavity is formed between the inner pipe 1 and the outer pipe 2, and a heat preservation and insulation layer 4 is arranged in the cavity.
When in use, the spiral reinforcing pipe 3 is arranged on the outer pipe 2, so that the strength of the pipe body is effectively enhanced, and the service life is longer; by arranging the heat preservation and insulation layer 4 in the cavity between the inner pipe 1 and the outer pipe 2, the situation that the water accumulation and freezing occur in the pipe body and the water drainage is influenced is prevented; the utility model can effectively strengthen the strength of the pipe body, has longer service life, can isolate the temperature inside and outside the pipe body, and can prevent the occurrence of ponding freezing in the pipe body and the occurrence of water drainage.
As shown in fig. 1, 2 and 3, a spiral channel is arranged in the spiral reinforcement pipe 3, heat insulation gas is arranged in the spiral channel, and laminated films are respectively arranged at two ends of the spiral channel and used for blocking gas from overflowing; in this embodiment, the heat-insulating gas is filled in the spiral channel, so that the heat-radiating area of the outer tube 2 is reduced, and the heat-insulating effect of the tube body is further improved.
As shown in fig. 1, 2 and 3, the heat insulating gas is nitrogen; in this embodiment, nitrogen is filled in the spiral channel, so that the spiral reinforcing pipe 3 can not only play a role in supporting the strength of the pipe body, but also enable the pipe body to have a certain heat insulation performance.
As shown in fig. 1, 2 and 3, the heat preservation and insulation layer 4 is a plurality of heat insulation particles, and the particle size range of the heat insulation particles is 1.5-4.5mm; in the embodiment, when the heat preservation and insulation layer 4 is a plurality of heat insulation particles, and the particle size range of the heat insulation particles is 1.5-4.5mm, the heat insulation particles can insulate the heat inside and outside the pipe body, so that the heat insulation effect of the pipe body is ensured.
As shown in fig. 1, 2 and 3, two ends of the pipe body are also provided with plug-in parts 5; in this embodiment, the pipe body can be plugged by the plugging portion 5.
As shown in fig. 1, 2 and 3, the spiral protrusion is provided with a crest 21, the spiral reinforcing pipe 3 is wound in a trough between adjacent crests 21, and the distance between adjacent crests 21 is not more than one fifth of the pipe diameter; in this embodiment, the reinforcing effect of the spiral reinforcing pipe 3 is best when the interval between adjacent peaks 21 is not more than one fifth of the pipe diameter.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a double-walled bellows, includes body, its characterized in that: the pipe body comprises a cylindrical hollow inner pipe (1), an outer pipe (2) with a spiral bulge on the surface, and a spiral reinforcing pipe (3) arranged on the outer pipe (2) in a spiral mode, a cavity is formed between the inner pipe (1) and the outer pipe (2), and a heat preservation and insulation layer (4) is arranged in the cavity.
2. A double-walled bellows according to claim 1, wherein: the spiral reinforcing pipe (3) is internally provided with a spiral channel, the spiral channel is internally provided with heat-insulating gas, two ends of the spiral channel are respectively provided with a laminated film, and the laminated films are used for blocking gas overflow.
3. A double-walled bellows according to claim 2, wherein: the heat-insulating gas is nitrogen.
4. A double-walled bellows according to claim 1, wherein: the heat preservation and insulation layer (4) is a plurality of heat insulation particles, and the particle size range of the heat insulation particles is 1.5-4.5mm.
5. A double-walled bellows according to claim 1, wherein: the two ends of the pipe body are also provided with plug-in parts (5).
6. A double-walled bellows according to claim 1, wherein: the spiral bulge is provided with wave crests (21), the spiral reinforcing pipe (3) is wound in wave troughs between adjacent wave crests (21), and the distance between the adjacent wave crests (21) is not more than one fifth of the pipe diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408736.3U CN220037727U (en) | 2023-06-05 | 2023-06-05 | Double-wall corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408736.3U CN220037727U (en) | 2023-06-05 | 2023-06-05 | Double-wall corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037727U true CN220037727U (en) | 2023-11-17 |
Family
ID=88739955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321408736.3U Active CN220037727U (en) | 2023-06-05 | 2023-06-05 | Double-wall corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037727U (en) |
-
2023
- 2023-06-05 CN CN202321408736.3U patent/CN220037727U/en active Active
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| GR01 | Patent grant |