CN215863488U - Loose flange device for smoke exhaust tube - Google Patents
Loose flange device for smoke exhaust tube Download PDFInfo
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- CN215863488U CN215863488U CN202122051279.4U CN202122051279U CN215863488U CN 215863488 U CN215863488 U CN 215863488U CN 202122051279 U CN202122051279 U CN 202122051279U CN 215863488 U CN215863488 U CN 215863488U
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- flange
- ring beam
- smoke exhaust
- exhaust tube
- loose
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Abstract
The utility model relates to a loose flange device for a smoke exhaust tube, which relates to the field of chimney design and comprises a flange ring beam sleeved on the periphery of a smoke exhaust tube barrel and a flange bearing platform fixedly connected to the periphery of the bottom of the smoke exhaust tube barrel, wherein the inner diameter of the flange ring beam is smaller than the outer diameter of the flange bearing platform, and the flange ring beam is abutted against the flange bearing platform. The utility model has the effects of improving the connection reliability of the self-supporting glass fiber reinforced plastic inner cylinder and the supporting ring beam and the consistency of the structural calculation model.
Description
Technical Field
The utility model relates to the field of chimney design, in particular to a loose flange device for a smoke exhaust pipe, which is suitable for connection of an inner cylinder of a chimney.
Background
The glass fiber reinforced plastic inner cylinder is widely applied to corrosion prevention of wet chimneys. The glass fiber reinforced plastic inner cylinder is connected in sections, the connection form between cylinder sections is mainly a socket joint type and a flat end butt joint type, and the connection of the self-standing glass fiber reinforced plastic inner cylinder and supporting devices such as a foundation ring beam and the like is generally flange connection.
Referring to fig. 1 and 2, which are schematic plan views of a common connecting flange of a common glass fiber reinforced plastic chimney, a post-formed common glass fiber reinforced plastic flange plate 102 is arranged at the end of a common glass fiber reinforced plastic chimney body 101, and then a common glass fiber reinforced plastic flange plate bolt hole 103 for bolt connection is formed in the common glass fiber reinforced plastic flange plate 102, so that the common glass fiber reinforced plastic chimney body 101 is connected through the common glass fiber reinforced plastic flange plate 102.
However, because of the large diameter of the glass fiber reinforced plastic inner cylinder, the cylinder is usually formed by a mechanical winding process, and the flange is usually formed by a hand pasting process. The hand-pasted flange plate belongs to secondary forming, is weak in connection strength with a glass fiber reinforced plastic cylinder body, is difficult to bear the action of a large bending moment at the bottom of a smoke exhaust cylinder, becomes the weakest link of the self-supporting glass fiber reinforced plastic inner cylinder structure, and needs to be improved, so that the structural safety of the integral smoke exhaust cylinder is ensured.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the loop flange device for the smoke exhaust cylinder is provided, and the reliability of connection of the self-supporting glass fiber reinforced plastic inner cylinder and the supporting ring beam and the consistency of a structural calculation model are improved.
In order to achieve the purpose, the technical scheme of the utility model provides a loose flange device for a smoke exhaust tube, which comprises a flange ring beam sleeved on the periphery of a smoke exhaust tube body and a flange bearing platform fixedly connected to the periphery of the bottom of the smoke exhaust tube body, wherein the inner diameter of the flange ring beam is smaller than the outer diameter of the flange bearing platform, and the flange ring beam is abutted against the flange bearing platform.
Preferably, the flange bearing platform is integrally formed on the smoke exhaust cylinder body.
Preferably, the flange bearing platform and the flange ring beam are arranged in a concentric circle.
Preferably, the cross section of the flange ring beam is groove-shaped, and the opening direction of the groove deviates from the smoke exhaust cylinder body.
Preferably, a stiffening plate is fixedly arranged in the groove of the flange ring beam, the length direction of the stiffening plate is the same as the axial direction of the smoke exhaust cylinder body, and the width direction of the stiffening plate is the same as the radial direction of the flange ring beam.
Preferably, the flange ring beam is circumferentially provided with a plurality of ring beam bolt holes, and the two sides of each ring beam bolt hole are provided with the stiffening plates.
Preferably, the flange ring beam is formed by fixedly connecting at least two arc-shaped structures.
Preferably, the end part of the arc-shaped structure is provided with a ring beam end plate, the ring beam end plate is provided with an end plate bolt hole, and the two arc-shaped structures are connected with each other through the end plate bolt holes in a bolt connection mode.
Preferably, one side of the ring beam end plate, which is far away from the smoke exhaust tube cylinder body, is provided with a connecting cover plate, and two ends of the connecting cover plate are fixedly connected with the two arc-shaped structures respectively.
In summary, the utility model includes at least one of the following beneficial technical effects:
1. the flange bearing platform and the smoke exhaust cylinder are formed in a one-step winding mode, compared with the existing hand-pasted glass fiber reinforced plastic flange, the flange bearing platform and the smoke exhaust cylinder are high in integrity and structural strength, the problem of inconsistency of fiber layering of the hand-pasted flange and structural layer layering of the cylinder is solved, the structural stress characteristic of the glass fiber reinforced plastic flange is closer to that of a glass fiber reinforced plastic material, meanwhile, the bearing area of a structural layer of the glass fiber reinforced plastic cylinder and a bearing ring beam of an inner cylinder is increased, the fault tolerance of machining errors of the glass fiber reinforced plastic inner cylinder and the bearing ring beam of the inner cylinder is improved, and the reliability of inner cylinder bearing is greatly improved;
2. the flange ring beam has the characteristics of high strength, high rigidity and the like, the bending rigidity of the connection between the glass fiber reinforced plastic cylinder body and the inner cylinder supporting ring beam is enhanced, and the reliability of the connection between the self-supporting glass fiber reinforced plastic inner cylinder and the inner cylinder supporting ring beam and the consistency of a structural calculation model are improved.
Drawings
FIG. 1 is a schematic plan view of a conventional flange for connecting glass fiber reinforced plastic cylinders according to the related art;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic plan view of a looper flange device for a smoke exhaust pipe according to the present invention;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
fig. 5 is a front view and a right side view of a flange ring beam connection portion.
Reference numerals: 101. a common glass fiber reinforced plastic smoke exhaust cylinder body; 102. a common glass fiber reinforced plastic flange; 103. bolt holes of a common glass reinforced plastic flange plate; 201. a chimney body; 202. a flange bearing platform; 203. a flange joint surface; 301. a flange ring beam; 302. a stiffening plate; 303. a ring beam bolt hole; 304. a ring beam end plate; 305. an end plate bolt hole; 401. connecting the cover plate; 402. and the ring beam is connected with a bolt.
Detailed Description
The present invention is described in further detail below with reference to figures 3-5.
The embodiment of the utility model discloses a loose flange device for a smoke exhaust cylinder.
Example 1:
referring to fig. 3 to 5, the looper flange device for the smoke exhaust pipe comprises a flange ring beam 301 sleeved on the periphery of the smoke exhaust pipe cylinder 201 and a flange bearing platform 202 integrally formed at the end of the smoke exhaust pipe cylinder 201, wherein the surface of the flange bearing platform 202, which is close to the flange ring beam 301, is a flange joint surface 203, and the flange ring beam 301 abuts against the joint surface. The chimney barrel 201, the flange bearing platform 202 and the flange ring beam 301 are arranged in a concentric circle mode, the inner diameter of the flange ring beam 301 is larger than the outer diameter of the chimney barrel 201, and the inner diameter of the flange ring beam 301 is smaller than the outer diameter of the flange bearing platform 202.
In the embodiment, the smoke exhaust cylinder 201 is made by winding glass fiber reinforced plastics, the smoke exhaust cylinder 201 and the flange bearing platform 202 are integrally formed in one-step winding mode, the consistency of structural performance is guaranteed, all-directional load can be effectively borne, the smoke exhaust cylinder has the advantages of being high in integrity, high in structural strength and the like, the problem of inconsistency between a hand-pasted flange plate fiber laying layer and a structural layer laying layer of the cylinder is solved, the structural stress characteristic of the glass fiber reinforced plastics is closer to that of the glass fiber reinforced plastics, meanwhile, the supporting area of the structural layer of the smoke exhaust cylinder 201 and an inner cylinder supporting ring beam is increased, the fault tolerance of processing errors of the glass fiber reinforced plastics inner cylinder and the inner cylinder supporting ring beam is improved, and the reliability of inner cylinder supporting is greatly improved.
Referring to fig. 3 to 5, in the present embodiment, the flange ring beam 301 is composed of two symmetrical arc-shaped steel structures, and the two arc-shaped steel structures are spliced and sleeved outside the glass fiber reinforced plastic barrel body. The end part of each arc-shaped steel structure is fixedly provided with a ring beam end plate 304, the length direction of the ring beam end plate 304 is the same as the axial direction of the smoke exhaust tube cylinder 201, and the width direction of the ring beam end plate 304 is the same as the radial direction of the flange ring beam 301. Each ring beam end plate 304 is provided with an end plate bolt hole 305, and the ring beam end plates 304 of the two arc-shaped steel structures are fixedly connected through the ring beam connecting bolts 402 and the end plate bolt holes 305. And a connecting cover plate 401 is further arranged on one side of the ring beam end plate 304, which is far away from the smoke exhaust tube cylinder 201, and two ends of the connecting cover plate 401 are respectively welded or bolted to the end parts of the two arc-shaped steel structures.
Referring to fig. 3 to 5, in this embodiment, the cross section of the flange ring beam 301 is in a short-limb "C" -shaped channel steel shape, and the channel steel opening direction of the flange ring beam 301 is far away from the smoke exhaust tube cylinder 201. Each arc-shaped steel structure is provided with a ring beam bolt hole 303 used for being connected with an inner cylinder supporting ring beam through a bolt, two circumferential sides of each ring beam bolt hole 303 along the flange ring beam 301 are fixedly provided with stiffening plates 302, each stiffening plate 302 is located on the inner side of a channel steel opening of the flange ring beam 301, the length direction of each stiffening plate 302 is the same as the axial direction of the smoke exhaust cylinder body 201, and the width direction of each stiffening plate 302 is the same as the radial direction of the flange ring beam 301.
In addition, the arc-shaped steel structure of the flange ring beam 301 may adopt a structure with a long limb 'U' -shaped cross section, or adopt a short limb 'C' -shaped channel steel with a locally widened limb length, or adopt a rectangular steel tubular box beam structure. The number of the segments of the flange ring beam 301 can be determined according to the specific conditions of the diameter of the glass fiber reinforced plastic inner cylinder, transportation, installation and the like.
The specific implementation steps of this embodiment are as follows:
1) mechanically winding on the mould to complete the smoke exhaust cylinder 201, and continuously winding the end part according to the required thickness and height to complete the flange bearing platform 202;
2) sleeving the two arc-shaped steel structures of the flange ring beam 301 on the outer side of the glass fiber reinforced plastic exhaust pipe cylinder body 201, applying pretightening force to the two arc-shaped steel structures by using the ring beam connecting bolt 402 and the ring beam end plate 304, and tightly fixing the two arc-shaped steel structures of the flange ring beam 301 on the outer side of the exhaust pipe cylinder body 201 to complete the positioning work of the integral flange ring beam 301;
3) after the positioning work of the flange ring beam 301 is finished, fixing the connecting cover plate 401 with two ends of an arc-shaped steel structure in a welding or bolt connection mode to form an integral ring beam;
4) and the inner cylinder supporting and fixing work is finished by fixing the connecting bolts with the inner cylinder supporting ring beam through the ring beam bolt holes 303.
The flange ring beam 301 has the characteristics of high strength, high rigidity and the like, the bending rigidity of the connection between the smoke exhaust cylinder body 201 and the inner cylinder supporting ring beam is enhanced, and the reliability of the connection between the self-supporting glass fiber reinforced plastic inner cylinder and the inner cylinder supporting ring beam and the consistency of a structural calculation model are improved.
Example 2:
the loose flange device for the smoke exhaust pipe in the embodiment is mainly used for the sectional connection of the steel inner pipe, and the smoke exhaust pipe body 201 and the flange bearing platform 202 are both made of steel structures, and are the same as those in the embodiment 1 except that the steel structures are adopted.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (9)
1. The utility model provides a loopa flange device for chimney which characterized in that: locate exhaust pipe barrel (201) outlying flange ring roof beam (301) and fixed connection including the cover in exhaust pipe barrel (201) bottom outlying flange cushion cap (202), the internal diameter of flange ring roof beam (301) is less than the external diameter of flange cushion cap (202), flange ring roof beam (301) butt flange cushion cap (202).
2. The loose flange device for smoke exhaust tubes according to claim 1, wherein: the flange bearing platform (202) is integrally formed on the smoke exhaust tube cylinder body (201).
3. The loose flange device for smoke exhaust tubes according to claim 1, wherein: the flange bearing platform (202) and the flange ring beam (301) are arranged in a concentric circle mode.
4. A loose flange device for smoke exhaust pipe according to any one of claims 1 to 3, wherein: the section of the flange ring beam (301) is groove-shaped, and the opening direction of the groove deviates from the smoke exhaust tube body (201).
5. The loose flange device for smoke exhaust tube of claim 4, wherein: the flange ring beam is characterized in that a stiffening plate (302) is fixedly arranged in a groove of the flange ring beam (301), the length direction of the stiffening plate (302) is the same as the axial direction of the smoke exhaust tube cylinder (201), and the width direction of the stiffening plate (302) is the same as the radial direction of the flange ring beam (301).
6. The loose flange device for smoke exhaust tubes according to claim 5, wherein: the flange ring beam (301) is circumferentially provided with a plurality of ring beam bolt holes (303), and the two sides of each ring beam bolt hole (303) are provided with the stiffening plates (302).
7. A loose flange device for smoke exhaust pipe according to any one of claims 1 to 3, wherein: the flange ring beam (301) is formed by fixedly connecting at least two arc-shaped structures.
8. The loose flange device for smoke exhaust tubes according to claim 7, wherein: the tip of arc structure is provided with ring beam end plate (304), end plate bolt hole (305) have been seted up on ring beam end plate (304), two of interconnect arc structure passes through end plate bolt hole (305) carry out bolted connection.
9. The loose flange device for smoke exhaust tubes according to claim 8, wherein: one side of the ring beam end plate (304) far away from the smoke exhaust tube cylinder body (201) is provided with a connecting cover plate (401), and two ends of the connecting cover plate (401) are fixedly connected with the two arc-shaped structures respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122051279.4U CN215863488U (en) | 2021-08-27 | 2021-08-27 | Loose flange device for smoke exhaust tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122051279.4U CN215863488U (en) | 2021-08-27 | 2021-08-27 | Loose flange device for smoke exhaust tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215863488U true CN215863488U (en) | 2022-02-18 |
Family
ID=80243441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122051279.4U Active CN215863488U (en) | 2021-08-27 | 2021-08-27 | Loose flange device for smoke exhaust tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215863488U (en) |
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2021
- 2021-08-27 CN CN202122051279.4U patent/CN215863488U/en active Active
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