CN215950752U - Internal-reinforced straight pipe pressure balance type expansion joint - Google Patents
Internal-reinforced straight pipe pressure balance type expansion joint Download PDFInfo
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- CN215950752U CN215950752U CN202122373224.5U CN202122373224U CN215950752U CN 215950752 U CN215950752 U CN 215950752U CN 202122373224 U CN202122373224 U CN 202122373224U CN 215950752 U CN215950752 U CN 215950752U
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- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an internal reinforced straight pipe pressure balance type expansion joint, which belongs to the technical field of pipelines and comprises a first working corrugated pipe and a second working corrugated pipe which are symmetrically arranged, wherein a first end connecting pipe and a second end connecting pipe are respectively and fixedly arranged at two ends of the first working corrugated pipe, and a third end connecting pipe and a fourth end connecting pipe are respectively and fixedly arranged at two ends of the second working corrugated pipe.
Description
Technical Field
The utility model relates to the technical field of pipelines, in particular to an inner reinforced straight pipe pressure balance type expansion joint.
Background
At present, a plurality of expansion joints used for compensating pipeline expansion are required to be installed in sections in the existing heat supply pipeline, particularly a long-distance heat supply pipeline used for conveying high-temperature and high-pressure media, and the expansion joints are large in wall thickness and high in strength. In the use process, the expansion amount generated by the heat supply pipeline is large, the wave number of the corrugated pipe is large, and the corrugated pipe of the expansion joint is easy to fatigue. Therefore, it is necessary to increase the strength of the expansion joint and reduce the leakage of the expansion joint due to fatigue.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an inner reinforced straight pipe pressure balance type expansion joint.
The technical scheme of the utility model is as follows: an inner reinforced straight pipe pressure balance type expansion joint comprises a first working corrugated pipe and a second working corrugated pipe which are symmetrically arranged, wherein a first end connecting pipe and a second end connecting pipe are fixedly installed at two ends of the first working corrugated pipe respectively, a third end connecting pipe and a fourth end connecting pipe are fixedly installed at two ends of the second working corrugated pipe respectively, a first lug plate is arranged at the joint of the first end connecting pipe and the first working corrugated pipe, a first pressure-bearing ring plate is arranged at the joint of the second end connecting pipe and the first working corrugated pipe, and the first lug plate and the first pressure-bearing ring plate are fixedly connected through a first transportation pull rod; a second lug plate is arranged at the joint of the third end connecting pipe and the second working corrugated pipe, a second pressure-bearing ring plate is arranged at the joint of the fourth end connecting pipe and the second working corrugated pipe, and the second lug plate and the second pressure-bearing ring plate are fixedly connected through a second transport pull rod; a balance corrugated pipe is arranged between the first pressure-bearing ring plate and the second pressure-bearing ring plate, and the balance corrugated pipe is respectively and fixedly connected with the first pressure-bearing ring plate and the second pressure-bearing ring plate through end connecting pipes at two ends; a first reinforcing steel plate is fixedly arranged between the first pressure-bearing ring plate and the second end connecting pipe, and a second reinforcing steel plate is fixedly arranged between the second pressure-bearing ring plate and the fourth end connecting pipe.
The first connecting pipe is arranged on the inner wall of the first end connecting pipe, the second connecting ring is arranged on the inner wall of the fourth end connecting pipe, and the first connecting pipe is arranged between the first connecting ring and the second connecting ring.
The inner wall of the third connecting pipe is provided with a third connecting ring, a second connecting pipe is arranged between the second connecting ring and the third connecting ring, and the inner diameter of the second connecting pipe is smaller than that of the first connecting pipe.
The utility model has the beneficial effects that:
the expansion joint is simple in structure, the first connecting pipe is arranged in the first end connecting pipe and the fourth end connecting pipe, the second connecting pipe is arranged in the fourth end connecting pipe and the third end connecting pipe, and the arrangement is adopted, so that the strength of the expansion joint is enhanced from the inside, and the leakage phenomenon of the expansion joint caused by fatigue is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention,
the corrugated pipe comprises a first working corrugated pipe 1, a first end connecting pipe 11, a first end connecting pipe 12, a second end connecting pipe 13, a first lug plate 14, a first pressure-bearing ring plate 15, a first transportation pull rod 16, a first connecting ring 2, a second working corrugated pipe 21, a third end connecting pipe 22, a fourth end connecting pipe 23, a second lug plate 24, a second pressure-bearing ring plate 25, a second transportation pull rod 26, a second connecting ring 27, a third connecting ring 3, a balance corrugated pipe 31, a first reinforcing steel plate 32, a second reinforcing steel plate 4, a first connecting pipe 5 and a second connecting pipe.
Detailed Description
The utility model will be further illustrated and understood by the following non-limiting examples.
As shown in fig. 1, the utility model provides an internal reinforced straight pipe pressure balance type expansion joint, which comprises a first working corrugated pipe 1 and a second working corrugated pipe 2 which are symmetrically arranged, wherein a first end connecting pipe 11 and a second end connecting pipe 12 are respectively and fixedly arranged at two ends of the first working corrugated pipe 1, a third end connecting pipe 21 and a fourth end connecting pipe 22 are respectively and fixedly arranged at two ends of the second working corrugated pipe 2, a first lug plate 13 is arranged at the joint of the first end connecting pipe 11 and the first working corrugated pipe 1, a first pressure-bearing ring plate 14 is arranged at the joint of the second end connecting pipe 12 and the first working corrugated pipe 1, and the first lug plate 13 and the first pressure-bearing ring plate 14 are fixedly connected through a first transportation pull rod 15; a second lug plate 23 is arranged at the joint of the third end connecting pipe 21 and the second working corrugated pipe 2, a second pressure-bearing ring plate 24 is arranged at the joint of the fourth end connecting pipe 22 and the second working corrugated pipe 2, and the second lug plate 23 and the second pressure-bearing ring plate 24 are fixedly connected through a second transportation pull rod 25; a balance corrugated pipe 3 is arranged between the first pressure-bearing ring plate 14 and the second pressure-bearing ring plate 24, and the balance corrugated pipe 3 is respectively fixedly connected with the first pressure-bearing ring plate 14 and the second pressure-bearing ring plate 24 through end connecting pipes at two ends; a first reinforcing steel plate 31 is fixedly installed between the first pressure-bearing ring plate 14 and the second end connection pipe 12, and a second reinforcing steel plate 32 is fixedly installed between the second pressure-bearing ring plate 24 and the fourth end connection pipe 22.
The first connecting ring 16 is disposed on the inner wall of the first end connecting pipe 11, the second connecting ring 26 is disposed on the inner wall of the fourth end connecting pipe 22, and the first connecting pipe 4 is disposed between the first connecting ring 16 and the second connecting ring 26.
A third connecting ring 27 is arranged on the inner wall of each third connecting pipe 21, a second connecting pipe 5 is arranged between the second connecting ring 26 and the third connecting ring 27, and the inner diameter of the second connecting pipe 5 is smaller than that of the first connecting pipe 4. According to the utility model, the first connecting pipe 4 is arranged in the first end connecting pipe 11 and the fourth end connecting pipe 22, the second connecting pipe 5 is arranged in the fourth end connecting pipe 22 and the third end connecting pipe 21, and through the arrangement, the strength of the expansion joint is enhanced from the inside, and the leakage phenomenon of the expansion joint caused by fatigue is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides an interior strenghthened type straight tube pressure balance type expansion joint, first work bellows and second work bellows including the symmetry sets up, the both ends of first work bellows fixed mounting respectively have first end to take over and second end to take over, the both ends of second work bellows fixed mounting respectively have third end to take over and fourth end to take over, its characterized in that: a first lug plate is arranged at the joint of the first end connecting pipe and the first working corrugated pipe, a first pressure-bearing ring plate is arranged at the joint of the second end connecting pipe and the first working corrugated pipe, and the first lug plate is fixedly connected with the first pressure-bearing ring plate through a first transport pull rod; a second lug plate is arranged at the joint of the third end connecting pipe and the second working corrugated pipe, a second pressure-bearing ring plate is arranged at the joint of the fourth end connecting pipe and the second working corrugated pipe, and the second lug plate and the second pressure-bearing ring plate are fixedly connected through a second transport pull rod; a balance corrugated pipe is arranged between the first pressure-bearing ring plate and the second pressure-bearing ring plate, and the balance corrugated pipe is respectively and fixedly connected with the first pressure-bearing ring plate and the second pressure-bearing ring plate through end connecting pipes at two ends; a first reinforcing steel plate is fixedly mounted between the first pressure-bearing ring plate and the second end connecting pipe, and a second reinforcing steel plate is fixedly mounted between the second pressure-bearing ring plate and the fourth end connecting pipe.
2. The internally reinforced straight pipe pressure balance type expansion joint according to claim 1, characterized in that: the inner wall of the first end connecting pipe is provided with a first connecting ring, the inner wall of the fourth end connecting pipe is provided with a second connecting ring, and a first connecting pipe is arranged between the first connecting ring and the second connecting ring.
3. The internally reinforced straight pipe pressure balance type expansion joint according to claim 2, characterized in that: and a third connecting ring is arranged on the inner wall of the third connecting pipe, a second connecting pipe is arranged between the second connecting ring and the third connecting ring, and the inner diameter of the second connecting pipe is smaller than that of the first connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373224.5U CN215950752U (en) | 2021-09-28 | 2021-09-28 | Internal-reinforced straight pipe pressure balance type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373224.5U CN215950752U (en) | 2021-09-28 | 2021-09-28 | Internal-reinforced straight pipe pressure balance type expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950752U true CN215950752U (en) | 2022-03-04 |
Family
ID=80424750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122373224.5U Active CN215950752U (en) | 2021-09-28 | 2021-09-28 | Internal-reinforced straight pipe pressure balance type expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950752U (en) |
-
2021
- 2021-09-28 CN CN202122373224.5U patent/CN215950752U/en active Active
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