CN215570583U - Flexible hanging connector for high-temperature smoke exhaust of boiler - Google Patents
Flexible hanging connector for high-temperature smoke exhaust of boiler Download PDFInfo
- Publication number
- CN215570583U CN215570583U CN202121613327.8U CN202121613327U CN215570583U CN 215570583 U CN215570583 U CN 215570583U CN 202121613327 U CN202121613327 U CN 202121613327U CN 215570583 U CN215570583 U CN 215570583U
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- China
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- temperature furnace
- square steel
- partition wall
- smoke pipeline
- inner partition
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Abstract
The boiler high temperature smoke extraction outlet flexible hanging connecting device. The boiler body is of a suspension structure, the original boiler body is in rigid welding connection with the high-temperature furnace smoke pipeline, the welding part is the maximum expansion position in the horizontal direction, the lower part of the smoke extraction port of the high-temperature furnace smoke pipeline is an inserted expansion joint, and the radial space of the inserted expansion joint cannot meet the radial displacement of the high-temperature furnace smoke pipeline, so that the strength of the welding seam between the boiler body and the high-temperature furnace smoke pipeline is insufficient and the boiler body is torn. The utility model comprises the following components: the support device comprises an inner partition wall water-cooled wall (1) and high-temperature furnace smoke pipeline support square steel (6), wherein the lower part of the inner partition wall water-cooled wall is connected with the inner partition wall water-cooled wall support square steel (2), and the high-temperature furnace smoke pipeline support square steel is arranged below the inner partition wall water-cooled wall support square steel. The utility model is used for overhauling the smoke pipeline of the high-temperature furnace of the power station boiler.
Description
Technical Field
The utility model relates to the technical field of maintenance of smoke pipelines of high-temperature furnaces of power station boilers, in particular to a flexible hanging and connecting device for a smoke extraction port of a high-temperature furnace of a boiler.
Background
At present, the Russian Bos Ke's Auore Ke Ningze machine manufacturing factory is manufactured, the model is II 1650-25-545 BT (II-78), the structure is that a boiler is in a monomer type, indoor arrangement is adopted, a heating surface is in T-shaped arrangement, a high-temperature furnace smoke channel formed by an inner partition wall formed by a membrane type wall is arranged in a convection vertical shaft, the high-temperature furnace smoke channel is in rigid welding connection with the inner partition wall supporting square steel, the phenomenon of tearing of a welding part is frequently generated in operation, pipeline falling accidents are easily generated, and safety production is greatly influenced. The boiler body is of a suspension structure, the boiler body thermally expands from an expansion dead point to the periphery during the operation of the unit, the original boiler body is in rigid welding connection with the high-temperature furnace smoke pipeline in a connection mode, the welding position is the maximum expansion position in the horizontal direction, the lower part of the extraction port of the high-temperature furnace smoke pipeline is an insertion expansion joint, the radial space of the insertion expansion joint is limited and cannot meet the radial displacement of the high-temperature furnace smoke pipeline, and the welding seam of the boiler body and the high-temperature furnace smoke pipeline is not strong enough and is torn.
Disclosure of Invention
The utility model aims to provide a flexible hanging and connecting device for a smoke extraction port of a high-temperature furnace of a boiler.
The above purpose is realized by the following technical scheme:
the utility model provides a flexible coupling device that hangs of boiler high temperature furnace smoke extraction opening which constitutes includes: the supporting square steel for the smoke tube of the high-temperature furnace is characterized by comprising an inner partition wall water-cooled wall and a supporting square steel for the smoke tube of the high-temperature furnace, wherein the lower part of the inner partition wall water-cooled wall is connected with the supporting square steel for the inner partition wall water-cooled wall, the supporting square steel for the smoke tube of the high-temperature furnace is arranged below the supporting square steel for the inner partition wall water-cooled wall, the lower part of the supporting square steel for the inner partition wall water-cooled wall is connected with a group of upper lifting rings, a group of lower lifting rings are connected above the supporting square steel for the smoke tube of the high-temperature furnace, the upper lifting rings are connected with the lower lifting rings through flexible round steels, the upper ends and the lower ends of the flexible round steels are both of circular ring structures, the middle parts of the flexible round steels are connected through round steels, and the lower part of the supporting square steel for the smoke tube of the high-temperature furnace is connected with a plug-in expansion joint.
Has the advantages that:
the utility model relates to a flexible hanging connection device for a smoke outlet of a high-temperature furnace of a boiler, wherein the lower part of a square steel supported by a water-cooled wall of an inner partition wall is connected with an upper hanging ring, the upper part of a square steel supported by a smoke pipeline of the high-temperature furnace is connected with a lower hanging ring, the upper hanging ring and the lower hanging ring are connected through round steel, and the flexible hanging is adopted, so that the requirement for bearing the required gravity is met, the problem of cracking of a welding seam caused by thermal stress generated by thermal expansion is avoided, the potential safety hazard of falling of the pipeline due to cracking of the welding seam is eliminated, the requirement for the sealing property of the smoke pipeline of the high-temperature furnace is ensured, the stress generated by thermal expansion is absorbed at the hanging part, the problem of tearing the welding seam due to the obstruction of expansion is avoided, and the operation safety of a unit is improved.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rigid connection structure of raw steel at a smoke outlet of a high-temperature boiler;
in the figure: 1. an inner partition wall water-cooled wall; 2. supporting square steel for the water cooled wall of the inner partition wall; 3. an upper hanging ring; 4. flexible round steel; 5. a lower lifting ring; 6. supporting square steel for a smoke pipeline of the high-temperature furnace; 7. an insertion expansion joint.
The specific implementation mode is as follows:
example 1:
the utility model provides a flexible coupling device that hangs of boiler high temperature furnace smoke extraction opening which constitutes includes: the support device comprises an inner partition wall water-cooled wall 1 and high-temperature furnace smoke pipeline support square steel 6, wherein the lower part of the inner partition wall water-cooled wall is connected with inner partition wall water-cooled wall support square steel 2, the high-temperature furnace smoke pipeline support square steel is arranged below the inner partition wall water-cooled wall support square steel, the lower part of the inner partition wall water-cooled wall support square steel is connected with a group of upper lifting rings 3, the upper part of the high-temperature furnace smoke pipeline support square steel is connected with a group of lower lifting rings 5, the upper lifting rings and the lower lifting rings are connected through flexible round steel 4, the upper end and the lower end of the flexible round steel are both of circular ring structures, the middle of the flexible round steel is connected through round steel, and the lower part of the high-temperature furnace smoke pipeline support square steel is connected with a plug-in expansion joint 7;
the upper lifting ring, the flexible round steel and the lower lifting ring are all made of round steel with the specification of phi 30 and the material of 12Cr1Mo1V, and the connecting component 9 sleeves (with the safety margin of 6 times) are arranged on each side according to allowable stress of 12Cr1Mo1V at the temperature of 600-650 ℃, and are welded between the boiler body and a smoke pipeline extraction port of the high-temperature furnace, so that the bearing requirement is met.
Claims (1)
1. The utility model provides a flexible coupling device that hangs of boiler high temperature furnace smoke extraction opening which constitutes includes: interior partition wall water-cooled wall, high temperature furnace smoke pipeline support square steel, characterized by: the lower part of the inner partition wall water-cooled wall is connected with inner partition wall water-cooled wall supporting square steel, a high-temperature furnace smoke pipeline supporting square steel is arranged below the inner partition wall water-cooled wall supporting square steel, the lower part of the inner partition wall water-cooled wall supporting square steel is connected with a set of upper lifting rings, a set of lower lifting rings are connected above the high-temperature furnace smoke pipeline supporting square steel, the upper lifting rings are connected with the lower lifting rings through flexible round steel, the upper end and the lower end of the flexible round steel are of circular ring structures, the middle of the flexible round steel is connected through round steel, and the lower part of the high-temperature furnace smoke pipeline supporting square steel is connected with a plug-in expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613327.8U CN215570583U (en) | 2021-07-15 | 2021-07-15 | Flexible hanging connector for high-temperature smoke exhaust of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121613327.8U CN215570583U (en) | 2021-07-15 | 2021-07-15 | Flexible hanging connector for high-temperature smoke exhaust of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570583U true CN215570583U (en) | 2022-01-18 |
Family
ID=79825973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121613327.8U Expired - Fee Related CN215570583U (en) | 2021-07-15 | 2021-07-15 | Flexible hanging connector for high-temperature smoke exhaust of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215570583U (en) |
-
2021
- 2021-07-15 CN CN202121613327.8U patent/CN215570583U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |