CN220555929U - Tensioning device suitable for suspension type double-steel inner cylinder chimney - Google Patents
Tensioning device suitable for suspension type double-steel inner cylinder chimney Download PDFInfo
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- CN220555929U CN220555929U CN202320289234.7U CN202320289234U CN220555929U CN 220555929 U CN220555929 U CN 220555929U CN 202320289234 U CN202320289234 U CN 202320289234U CN 220555929 U CN220555929 U CN 220555929U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 239000000725 suspension Substances 0.000 title claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a tensioning device suitable for a suspension type double-steel inner cylinder chimney, which comprises a steel inner cylinder end plate, a concrete outer cylinder end plate and a horizontal steel pipe support; the two ends of the horizontal steel pipe support are respectively connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts. Accordingly, the inventor also designs a corresponding suspension type dual-steel inner cylinder chimney, namely, the telescopic joint connects and tightens the steel inner cylinder and the concrete outer cylinder through the tightening device. According to the utility model, by innovatively designing the tensioning device and widely popularizing and applying the device, a conventional rigid anti-shake platform is not required to be arranged in the chimney design, but the anti-shake tensioning effect on the steel inner cylinder is realized by arranging the tensioning device instead, so that the integral steel consumption of the chimney is reduced, the high-altitude operation is reduced, and the construction difficulty is reduced.
Description
Technical Field
The utility model belongs to the technical field of chimney design and construction, and particularly relates to a tensioning device suitable for a suspension type double-steel inner cylinder chimney.
Background
At present, most of domestic thermal power plant chimney is sleeve type chimney, the height of its chimney is 150-240 m for double steel inner cylinder, the steel inner cylinder is divided into 3-5 segments, each segment is hung on the hanging steel platform independently, and each segment is connected by expansion joint. Because the steel inner cylinder adopts a suspension mode, the shaking problem of the steel inner cylinder is inevitably brought. In order to ensure the structural stability and the bearing capacity of the steel inner cylinder, a shaking stopping device is usually arranged at different heights (about 3-5 positions), and the horizontal displacement of the steel inner cylinder is limited by the shaking stopping device so as to ensure the structural stability of the steel inner cylinder. However, the anti-shaking device is required to be provided with rigid anti-shaking platforms of a main beam structure system and a secondary beam structure system for limiting the horizontal displacement, and the rigid anti-shaking platforms have large steel consumption and difficult high-altitude construction, so that the economy of the whole design of the chimney is affected.
Therefore, how to improve the traditional rigid anti-shake platform, reduce the overall construction cost and construction difficulty of the chimney, so as to improve the economy and practicality of the chimney design, and become a problem to be solved urgently.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the tensioning device which has a simple structure, is easy to construct and has low cost and is suitable for a suspended double-steel inner cylinder chimney.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a tensioning device suitable for a suspended dual-steel inner cylinder chimney comprises a steel inner cylinder end plate, a concrete outer cylinder end plate and a horizontal steel pipe support; the two ends of the horizontal steel pipe support are respectively connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts.
The horizontal steel pipe support mainly comprises a horizontal shaking stopping steel pipe and connecting plates fixedly connected to two ends of the horizontal shaking stopping steel pipe, one end of the horizontal shaking stopping steel pipe is connected with an end plate of the steel inner cylinder through the connecting plates in a bolt mode, and the other end of the horizontal shaking stopping steel pipe is connected with an end plate of the concrete outer cylinder through the connecting plates in a bolt mode.
The joint of the bolts is provided with a backing plate.
The steel inner cylinder end plate is arranged outside the inner cylinder wall, and the concrete outer cylinder end plate is arranged in the outer cylinder wall.
The steel inner cylinder end plate is arranged on the inner cylinder stiffening ring beam outside the inner cylinder wall, and the concrete outer cylinder end plate is arranged on the embedded part inside the outer cylinder wall.
The horizontal shaking stopping steel pipe comprises a threaded sleeve and two threaded steel pipes, one end of each threaded steel pipe is connected with the threaded sleeve, and the other end of each threaded steel pipe is connected with the connecting plate through the steel plate sealing plate.
And each section of steel inner cylinder is connected by adopting an expansion joint, and the expansion joint is used for connecting and tensioning the steel inner cylinder and the concrete outer cylinder through the tensioning device.
Each expansion joint is positioned on the same plane, and 1 to 3 tensioning devices are used for connecting and tensioning the steel inner cylinder and the concrete outer cylinder.
Aiming at the problems of the existing suspension type dual-steel inner cylinder chimney, the inventor designs and manufactures a tensioning device suitable for the suspension type dual-steel inner cylinder chimney, which comprises a steel inner cylinder end plate, a concrete outer cylinder end plate and a horizontal steel pipe support; the two ends of the horizontal steel pipe support are respectively connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts. Accordingly, the inventor also designs a corresponding suspension type dual-steel inner cylinder chimney, namely, the telescopic joint connects and tightens the steel inner cylinder and the concrete outer cylinder through the tightening device. According to the utility model, by innovatively designing the tensioning device, the shaking-stopping tensioning effect on the steel inner cylinder can be realized by applying the tensioning device.
Compared with the prior art, the utility model has the following beneficial effects:
(1) Structural safety is improved: after the tensioning device is arranged, the internal force of the steel inner cylinder at the tensioning device and the deformation of the inner cylinder and the outer cylinder are more reasonable, so that the action of horizontal elastic constraint on the steel inner cylinder can be met, the displacement of the steel inner cylinder in the vertical direction is not constrained, and the comprehensive perfection is realized.
(2) The construction difficulty is reduced, and the construction period is shortened: the tensioning device does not need to be provided with a rigid anti-shake platform, so that the custom-made processing workload of the steel beam is reduced, and the supply period is shortened; the overhead workload such as steel beam hoisting and welding is reduced, and the construction difficulty is reduced; the tensioning device can be installed after the steel inner cylinder is in place, construction is simple and convenient, installation efficiency is improved, and the construction period of installation of the steel inner cylinder is shortened.
(3) The cost is reduced: the tensioning device does not need to be provided with a rigid shaking stopping platform, reduces the consumption of steel beams, steel plates and the like, reduces the overall steel consumption of a chimney, reduces the cost of processing, manufacturing, construction and installation, and has higher economic benefit.
Drawings
FIG. 1 is a schematic structural view of a tensioning device of the present utility model adapted for use in a suspended dual steel inner barrel chimney.
FIG. 2 is a schematic view of the arrangement of the tensioning device of the present utility model at the expansion joint for a suspended dual steel inner barrel chimney.
FIG. 3 is a schematic view of the use state and the overall structure of a suspended double steel inner cylinder chimney (left cross section, right elevation) using the tensioning device of the present utility model.
In the figure: the steel platform comprises a steel inner cylinder end plate, a concrete outer cylinder end plate, a 3 inner cylinder stiffening ring beam, a 4 backing plate, a 5 connecting plate, a 6 embedded part, a 7-thread sleeve, an 8-thread steel pipe, a 9-steel plate sealing plate, a 10 expansion joint, an 11-steel inner cylinder, a 12-concrete outer cylinder, a 13 tensioning device and a 14-hanging steel platform.
Detailed Description
1. Basic structure
As shown in fig. 1 to 3, the tensioning device suitable for the suspended double-steel inner cylinder chimney comprises a steel inner cylinder end plate 1, a concrete outer cylinder end plate 2 and a horizontal steel pipe support; the two ends of the horizontal steel pipe support are respectively connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts. Wherein,
the steel inner cylinder end plate is arranged on the inner cylinder stiffening ring beam 3 outside the inner cylinder wall, and the concrete outer cylinder end plate is arranged on the embedded part inside the outer cylinder wall.
The horizontal steel pipe support mainly comprises a horizontal anti-shaking steel pipe and connecting plates 5 fixedly connected to the two ends of the horizontal anti-shaking steel pipe; the horizontal shaking stopping steel pipe comprises a threaded sleeve 7 and two threaded steel pipes 8, one end of each threaded steel pipe is connected with the threaded sleeve, and the other end of each threaded steel pipe is connected with the connecting plate through a steel plate sealing plate 9. One end of the horizontal shaking stopping steel pipe is connected with the end plate of the steel inner cylinder through a connecting plate, the other end of the horizontal shaking stopping steel pipe is connected with the end plate of the concrete outer cylinder through a connecting plate, and a backing plate 4 is arranged at the connecting position of the bolts.
The suspension type double-steel inner cylinder chimney using the tensioning device of the utility model adopts the expansion joint to connect each section of steel inner cylinder, and each expansion joint adopts the tensioning device to connect and tension the steel inner cylinder and the concrete outer cylinder. If multiple (3 shown) tensioning devices are used on the same plane at each expansion joint 10, the anti-sloshing tensioning of the steel inner cylinder is better.
2. Construction use
The arrangement of the utility model in the stack as a whole is shown in fig. 3, typically the stack will be provided with tensioning means at different levels (about 3-5), at each level 3 tensioning means 13 per steel inner cylinder 11.
Arranging an embedded part 6 in advance during construction of the concrete outer cylinder 12, and butt-welding an end plate of the concrete outer cylinder on the embedded part; an inner cylinder stiffening ring beam is fixedly arranged outside the wall of the steel inner cylinder, and an end plate of the steel inner cylinder is butt welded on the inner cylinder stiffening ring beam; the two ends of the threaded sleeve are respectively connected with the threaded steel pipes, the length of the horizontal steel pipe support can be adjusted through the threaded sleeve, the end parts of each threaded steel pipe, which are far away from each other, are respectively welded with a steel plate sealing plate, and the steel plate sealing plates are respectively provided with a connecting plate; after the steel inner cylinder is in place, connecting plates at two ends of the horizontal steel pipe support are respectively and fixedly connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts.
Claims (7)
1. The tensioning device suitable for the suspended dual-steel inner cylinder chimney is characterized by comprising a steel inner cylinder end plate, a concrete outer cylinder end plate and a horizontal steel pipe support; the two ends of the horizontal steel pipe support are respectively connected with the steel inner cylinder end plate and the concrete outer cylinder end plate through bolts; the horizontal steel pipe support mainly comprises a horizontal shaking stopping steel pipe and connecting plates fixedly connected to two ends of the horizontal shaking stopping steel pipe, one end of the horizontal shaking stopping steel pipe is connected with the steel inner cylinder end plate through the connecting plates in a bolt mode, and the other end of the horizontal shaking stopping steel pipe is connected with the concrete outer cylinder end plate through the connecting plates in a bolt mode.
2. The tensioning device for a suspended dual steel inner barrel chimney of claim 1, wherein: and a backing plate is arranged at the joint of the bolts.
3. The tensioning device for a suspended dual steel inner barrel chimney of claim 1, wherein: the steel inner cylinder end plate is arranged outside the inner cylinder wall, and the concrete outer cylinder end plate is arranged in the outer cylinder wall.
4. The tensioning device for a suspended dual steel inner barrel chimney of claim 3, wherein: the steel inner cylinder end plate is arranged on the inner cylinder stiffening ring beam outside the inner cylinder wall, and the concrete outer cylinder end plate is arranged on the embedded part inside the outer cylinder wall.
5. The tensioning device for a suspended dual steel inner barrel chimney of claim 1, wherein: the horizontal shaking stopping steel pipe comprises a threaded sleeve and two threaded steel pipes, one end of each threaded steel pipe is connected with the threaded sleeve, and the other end of each threaded steel pipe is connected with the connecting plate through a steel plate sealing plate.
6. A suspension type dual steel inner cylinder chimney adopts telescopic joint to connect between every section steel inner cylinder, its characterized in that: the telescopic joint is used for connecting and tensioning the steel inner cylinder and the concrete outer cylinder through the tensioning device disclosed in claim 1.
7. The suspended dual steel inner barrel chimney of claim 6, wherein: each expansion joint is positioned on the same plane, and 1 to 3 tensioning devices are used for connecting and tensioning the steel inner cylinder and the concrete outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320289234.7U CN220555929U (en) | 2023-02-23 | 2023-02-23 | Tensioning device suitable for suspension type double-steel inner cylinder chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320289234.7U CN220555929U (en) | 2023-02-23 | 2023-02-23 | Tensioning device suitable for suspension type double-steel inner cylinder chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220555929U true CN220555929U (en) | 2024-03-05 |
Family
ID=90051698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320289234.7U Active CN220555929U (en) | 2023-02-23 | 2023-02-23 | Tensioning device suitable for suspension type double-steel inner cylinder chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220555929U (en) |
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2023
- 2023-02-23 CN CN202320289234.7U patent/CN220555929U/en active Active
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