CN216769457U - Inner and outer cylinder type steel chimney - Google Patents
Inner and outer cylinder type steel chimney Download PDFInfo
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- CN216769457U CN216769457U CN202122634227.XU CN202122634227U CN216769457U CN 216769457 U CN216769457 U CN 216769457U CN 202122634227 U CN202122634227 U CN 202122634227U CN 216769457 U CN216769457 U CN 216769457U
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Abstract
The utility model relates to an inner and outer cylinder type steel chimney, and belongs to the technical field of chimney design and construction. The smoke-removing device comprises an outer barrel and an inner barrel sleeved in the outer barrel, wherein a heat-insulating layer is arranged on the outer wall of the inner barrel, and the upper end of the inner barrel is connected with an integrated smoke cap; a suspension supporting structure is arranged between the inner cylinder and the outer cylinder; a liquid drainage device is also arranged in the inner cylinder. The problems of localized bending and localized buckling of prior art multi-point supports are overcome by the suspension support structure of the present invention. Meanwhile, the reinforcing effect is achieved on the steel outer cylinder and the steel inner cylinder, the supporting purpose is achieved, meanwhile, the cylinder structure is reinforced, and the safety of the structure is guaranteed. The integrated smoke cap not only solves the rainproof problem at the top of the chimney, but also solves the problems of corrosion to the steel outer barrel and icing at the top of the chimney due to downward washing of smoke at the top of the chimney, and is beneficial to long-term safe operation of the chimney. The liquid discharge device can smoothly discharge liquid, avoid the generation of accumulated liquid and reduce the corrosion risk.
Description
Technical Field
The utility model relates to an inner and outer cylinder type steel chimney, and belongs to the technical field of chimney design and construction. The definition of direction in the present invention is that the direction vertically upward of the horizontal plane is upward, and the direction vertically downward of the horizontal plane is downward.
Background
Compared with a reinforced concrete chimney, the steel chimney has the characteristics of pretty and beautiful appearance, high construction speed and the like, and is widely applied. Due to the diversity of the smoke, the steel chimney is gradually developed into an inner and outer cylinder type steel chimney from a single cylinder type, namely the steel chimney is formed by an outer cylinder and one or more inner cylinders, wherein the outer cylinder is a steel shell and is a main bearing structure; the inner cylinder is a shell structure made of corrosion-resistant and high-temperature-resistant materials such as steel or glass fiber reinforced plastics and the like, and mainly plays a core role in discharging flue gas.
According to the national standard chimney engineering technical standard, the inner cylinder of the sleeve type or multi-tube type chimney is self-standing and also suspended. Compared with an inner and outer cylinder chimney with an outer cylinder made of reinforced concrete, the steel chimney with the inner cylinder has the advantages that the distance between the inner cylinder and the outer cylinder is small, the requirements on design and manufacture are high, and special design and manufacture are needed in all links. The main technical links of the inner and outer cylinder type steel chimney are as follows: 1) an inner cylinder support; 2) the inner and outer barrels are rainproof; 3) the top of the chimney is anticorrosive and anti-icing; 4) stopping shaking of the chimney; 5) hoisting and limiting the inner cylinder; 6) a flue; 7) checking holes and ash cleaning holes; 8) a drainage facility; 9) vibration damping, and the like.
At present, at home and abroad, the design and manufacture of the chimney with the inner cylinder and the outer cylinder have many aspects which need improvement, such as:
1) in the aspect of inner cylinder supporting, a multipoint supporting mode is mainly adopted, namely the inner cylinder is supported by a plurality of supporting points, so that the inner cylinder and the outer cylinder are stressed unevenly, and local instability or damage is easily caused;
2) the top of the chimney is a terminal for discharging flue gas into the air, and the complicated conditions such as disturbance of wind to flue gas flow, invasion of rainwater, sudden change of a temperature field and the like need to be faced. Disturbance of wind to flue gas flow can cause down-washing of flue gas and generate flue gas corrosion to an outer cylinder in a certain range at the top of a chimney; rainwater invades between the inner cylinder and the outer cylinder to cause the heat preservation of the inner cylinder and the damage of structural facilities between the inner cylinder and the outer cylinder; the sudden change of the temperature field can cause the damage of icing and the like on the top of the chimney in cold regions. At present, the design and manufacture at home and abroad mainly solve the problem of rain prevention at the top of a chimney, and the down-washing corrosion prevention of smoke is not considered or not considered enough, and the anti-icing problem is basically not taken. As shown in figure 7 of the attached drawings, the methods are respectively the methods of figure 8.3.2-2, figure 8.6.2-2 and figure 8.6.1-2 in the original national standard chimney design Specification GB50051-2002, GB50051-2013 and the existing national standard chimney engineering technical Standard GB/T50051-2021, while figure 8 is the method of the existing steel chimney, and the rain-proof method of figure 8 and figure 7 is the same technical principle, only solves the rain-proof problem and does not solve the anti-icing problem.
3) The chimney bottom drainage facility mainly adopts the structure that an inclined plate is arranged at the bottom of an inner cylinder, and a drainage pipe is arranged at the lowest position of the inclined plate. Such drainage facilities have the risk of water accumulation, with the passage of time, the corrosive medium is gradually enriched, causing bottom corrosive damage.
Therefore, there is a need in the art to solve the above-mentioned bottom layer technical problem, so as to improve the design and construction quality of the chimney and ensure the reliable operation of the chimney within the service life.
Disclosure of Invention
The utility model aims to solve the inner cylinder supporting problem of a steel chimney with an inner cylinder, the problems of water prevention, corrosion prevention and icing prevention at the top of the chimney, the technical problems of a bottom layer such as drainage at the bottom of the chimney and the like, thereby improving the design and construction quality and technical level of the chimney.
In order to achieve the purpose of solving the problems, the technical scheme adopted by the utility model is to provide an inner and outer cylinder type steel chimney, which comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, wherein the outer wall of the inner cylinder is provided with a heat-insulating layer, and the upper end of the inner cylinder is connected with an integrated smoke cap; a suspension supporting structure is arranged between the inner cylinder and the outer cylinder; a liquid drainage device is also arranged in the inner cylinder.
Preferably, the suspension support structure comprises an annular steel corbel fixed on the inner wall of the outer cylinder and a steel ring beam fixed on the outer wall of the inner cylinder; the steel ring beam is arranged above the annular steel bracket.
Preferably, the steel ring beam comprises a vertical surface connected with the outer wall of the inner cylinder and a horizontal annular plate connected with the lower end of the vertical surface; the annular steel bracket comprises a horizontal annular plate-shaped bracket top plate connected with the inner wall of the outer cylinder and stiffening ribs arranged on the lower surface of the bracket top plate; and the horizontal annular plate of the steel ring beam is arranged on the upper surface of the bracket top plate.
Preferably, the outer wall of the inner barrel is adjacent to one end, far away from the outer barrel, of the bracket top plate.
Preferably, the integrated cigarette cap comprises a rain-proof cap connected with the top end of the inner barrel and an ice-preventing cap connected with the top end of the rain-proof cap; an upper reflecting brim is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder; the rain-proof cap comprises a right circular truncated cone cylinder part and a cylindrical cylinder part, and the diameter of the lower end of the right circular truncated cone cylinder part is smaller than that of the upper end of the right circular truncated cone cylinder part; the top end of the inner cylinder is connected with the lower end of the right circular truncated cone cylinder part, the upper end of the right circular truncated cone cylinder part is connected with the upper end of the cylindrical cylinder part, and the lower end of the cylindrical cylinder part is arranged on the periphery of the upper reflecting eave on the outer side of the inner cylinder; the lower end of the anti-icing cap is connected with the upper end of the right circular truncated cone cylinder body, and the periphery of the anti-icing cap is not provided with a heat insulation layer.
Preferably, the integrated smoke cap comprises a rain-proof cap connected with the top end of the inner barrel and an anti-icing cap connected with the top end of the inner barrel; an upper reflecting brim is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder; the rain-proof cap comprises a right circular truncated cone cylinder part and a cylindrical cylinder part, and the diameter of the lower end of the right circular truncated cone cylinder part is larger than that of the upper end of the right circular truncated cone cylinder part; the top end of the inner cylinder is connected with the upper end of the right circular truncated cone cylinder part, the lower end of the right circular truncated cone cylinder part is connected with the upper end of the cylindrical cylinder part, and the lower end of the cylindrical cylinder part is arranged on the periphery of the upper reflecting eave on the outer side of the inner cylinder; the lower end of the anti-icing cap is connected with the upper end of the right circular truncated cone cylinder body, and the periphery of the anti-icing cap is not provided with a heat insulation layer.
Preferably, the anti-icing cap is made of the same material as that of the inner barrel or made of a more corrosion-resistant material.
Preferably, the liquid discharge device comprises a liquid discharge funnel arranged at the bottom in the inner cylinder and a liquid discharge pipe arranged below the liquid discharge funnel, the liquid discharge funnel is a reverse cone cylinder, and an elbow is arranged between the liquid discharge pipe and the bottom of the liquid discharge funnel.
Preferably, the heat insulation layer is a heat insulation material with a low heat conductivity coefficient or an air sealing layer.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model provides an inner and outer cylinder type steel chimney, which changes the structure of inner cylinder multipoint support in the prior art into a continuous and uniform suspension support structure and overcomes the problems of local bending and local instability generated by multipoint support. Meanwhile, the adopted supporting steel corbels and the steel ring beams respectively play a role in reinforcing the steel outer cylinder and the steel inner cylinder, so that the supporting purpose is achieved, the cylinder structure is reinforced, the stress characteristic of the shell structure is met, and the safety of the structure can be ensured.
2. The integrated smoke cap of the inner and outer cylinder type steel chimney provided by the utility model not only can meet the rainproof problem at the top of the chimney, but also can solve the problems of corrosion of the flue gas to the steel outer cylinder and icing at the top of the chimney caused by downward washing of the flue gas at the top of the chimney, and is beneficial to long-term safe operation of the chimney.
3. The liquid discharge funnel of the inner and outer cylinder type steel chimney provided by the utility model can smoothly discharge liquid, avoid generation of accumulated liquid and reduce corrosion risk. The drain pipe elbow adopts flange joint, is convenient for deashing and mediation to can replace deashing mouth function.
4. The inner and outer cylinder type steel chimney provided by the utility model can reduce the height of the outer cylinder under the condition of keeping the height of the chimney unchanged, and can save the material consumption of the outer cylinder.
Drawings
FIG. 1 is an elevation view of an inner and outer cylindrical steel chimney according to the present invention;
FIG. 2 is an enlarged view of the integrated top hat of the chimney shown in FIG. 1;
FIG. 3 is an enlarged view of the integrated top hat of the chimney according to example 2;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a sectional view taken along line B-B in FIG. 4 in example 2;
FIG. 7 shows the manufacturing method of the chimney cap of the original national standard chimney design Standard and the current national standard chimney engineering technology Standard;
FIG. 8 shows a conventional chimney cap approach.
Reference numerals: 1. an outer cylinder; 2. an inner barrel; 3. an inner cylinder heat-insulating layer; 4. closing the plate; 5. an upper reflecting edge; 6. integrating a cigarette cap I; 601. a first rain hat; 602. an anti-icing cap I; 603. a second rain cap; 7. a second integrated cigarette cap; 701. a third rain hat; 702. a second anti-icing cap; 703. a fourth rain cap; 8. a steel ring beam; 9. an annular steel corbel; 901. a bracket top plate; 902. a stiffening rib; 10. a liquid discharge funnel; 11. bending the pipe; 12. inspecting the hole; 13. a flue; 14. a base rigid flange.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-6, the utility model provides an inner and outer cylinder type steel chimney, which comprises an outer cylinder 1 and an inner cylinder 2 sleeved in the outer cylinder 1, wherein an inner cylinder heat-insulating layer 3 is arranged on the outer wall of the inner cylinder 2, and the upper end of the inner cylinder 2 is connected with an integrated smoke cap; a suspension supporting structure is arranged between the inner cylinder 2 and the outer cylinder 1; a liquid drainage device is also arranged in the inner cylinder. The suspension supporting structure comprises an annular steel corbel 9 fixed on the inner wall of the outer cylinder 1 and a steel ring beam 8 fixed on the outer wall of the inner cylinder 2; the steel ring beam 8 is arranged above the ring-shaped steel bracket 9. The steel ring beam 8 comprises a vertical surface connected with the outer wall of the inner cylinder 2 and a horizontal annular plate connected with the lower end of the vertical surface; the annular steel bracket 9 comprises a horizontal annular plate-shaped bracket top plate 901 connected with the inner wall of the outer cylinder 1 and a stiffening rib 902 arranged on the lower surface of the bracket top plate 901; the horizontal annular plate of the steel ring beam 8 is arranged on the upper surface of the bracket top plate 901. The outer wall of the inner barrel 2 is adjacent to one end of the bracket top plate 901 far away from the outer barrel 1. The integrated smoke cap I6 comprises a rain-proof cap connected with the top end of the inner barrel 2 and an anti-icing cap I602 connected with the top end of the rain-proof cap; an upper reflecting brim 5 is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder 2; the rain-proof cap comprises a second rain-proof cap 603 of the right circular truncated cone cylinder part and a first rain-proof cap 601 of the cylindrical cylinder part, and the diameter of the lower end of the second rain-proof cap 603 of the right circular truncated cone cylinder part is smaller than that of the upper end; the top end of the inner cylinder 2 is connected with the lower end of a second rain cap 603 of the right circular truncated cone cylinder part, the upper end of the second rain cap 603 of the right circular truncated cone cylinder part is connected with the upper end of a first rain cap 601 of the cylindrical cylinder part, and the lower end of the first rain cap 601 of the cylindrical cylinder part is arranged on the periphery of an upper reflecting eave 5 on the outer side of the inner cylinder 2; the lower end of the first anti-icing cap 602 is connected with the upper end of the second rain cap 603 of the right circular truncated cone cylinder part, and the periphery of the first anti-icing cap 602 is not provided with an insulating layer. Or the integrated smoke cap II 7 comprises a rain-proof cap connected with the top end of the inner cylinder and an anti-icing cap II 702 connected with the top end of the inner cylinder; an upper reflecting brim 5 is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder 2; the rain hat comprises a rain hat IV 703 of the right circular truncated cone cylinder part and a rain hat III 701 of the cylindrical cylinder part, and the diameter of the lower end of the rain hat IV 703 of the right circular truncated cone cylinder part is larger than that of the upper end; the top end of the inner cylinder 2 is connected with the upper end of a rain cap four 703 of the right circular truncated cone cylinder part, the lower end of the rain cap four 703 of the right circular truncated cone cylinder part is connected with the upper end of a rain cap three 701 of the cylindrical cylinder part, and the lower end of the rain cap three 701 of the cylindrical cylinder part is arranged on the periphery of an upper reflecting eave 5 on the outer side of the inner cylinder 2; the lower end of the second anti-icing cap 702 is connected with the upper end of the fourth rain cap 703 of the right circular truncated cone cylinder part, and the periphery of the second anti-icing cap 702 is not provided with an insulating layer. The anti-icing cap is made of the same material as the inner barrel or made of a more corrosion-resistant material. The liquid discharge device comprises a liquid discharge funnel 10 arranged at the bottom in the inner cylinder 2 and a liquid discharge pipe below the liquid discharge funnel 10, the liquid discharge funnel 10 is a reverse cone cylinder, and an elbow 11 is arranged between the liquid discharge pipe and the bottom of the liquid discharge funnel 10.
The utility model aims to solve the inner cylinder supporting problem of a steel chimney with an inner cylinder, the problems of water prevention, corrosion prevention and icing prevention at the top of the chimney, the technical problems of a bottom layer such as drainage at the bottom of the chimney and the like, thereby improving the design and construction quality and technical level of the chimney.
In order to solve the problems, the technical scheme adopted by the utility model is to provide an inner and outer cylinder type steel chimney which comprises a suspension supporting structure, an integrated smoke cap, a liquid discharge funnel and the like. The suspension supporting structure comprises an annular steel corbel 9 fixed on the inner side of the cylinder wall of the steel outer cylinder 1 and a steel ring beam 8 fixed on the outer side of the cylinder wall of the inner cylinder 2. The integrated cigarette cap comprises a rain-proof cap and an anti-icing cap which are fixed on the top of the inner barrel 2. The rain-proof cap consists of a right circular truncated cone cylinder and a cylindrical cylinder, wherein the small-caliber end of the right circular truncated cone cylinder is connected with the inner cylinder, the large-caliber end is connected with the cylindrical cylinder, and the diameter of the cylindrical cylinder is larger than that of the inner cylinder; the anti-icing cap is connected with the other end of the right circular truncated cone cylinder body, and the height of the anti-icing cap meets the requirements of anti-icing and smoke downwash ranges. The anti-icing cap of the integrated cigarette cap is not provided with a heat-insulating layer, and the temperature of the smoke is utilized to heat the anti-icing cap, so that the surface temperature of the anti-icing cap is higher than the freezing temperature, and the anti-icing purpose is realized. The anti-icing cap of the integrated cigarette cap is made of the same material as the inner barrel or made of a material with higher corrosion resistance grade. The liquid discharge funnel 10 is fixed at the bottom of the inner cylinder and is an inverted cone cylinder, and a liquid discharge pipe and an elbow 11 are arranged at the bottom of the funnel.
Example 1
As shown in fig. 1-5, the utility model provides an internal and external cylindrical steel chimney, which mainly comprises a suspension supporting structure, an integrated smoke cap, a liquid discharge funnel and the like.
The suspension supporting structure in the embodiment comprises a steel ring beam 8 fixed on the outer side of the cylinder wall of the inner cylinder 2 and an annular steel bracket 9 fixed on the inner side of the cylinder wall of the steel outer cylinder 1, wherein the annular steel bracket 9 is composed of a bracket top plate 901 and a stiffening rib 902. One vertical side surface of the steel ring beam 8 is connected with the outer side of the cylinder wall of the inner cylinder 2, and the other horizontal bottom surface of the steel ring beam is in contact with the plane of the annular bracket top plate 901, so that the load of the inner cylinder 2 is uniformly transmitted to the steel outer cylinder 1, and local instability caused by uneven supporting can be avoided. The outer side of the cylinder wall of the inner cylinder 2 is in contact with the inner side end of the bracket top plate 901, so that the horizontal displacement of the inner cylinder 2 can be limited, the fixation of the inner cylinder 2 is realized, and the bolt fixation is omitted. The steel ring beam 8 has a stiffening effect on the inner cylinder 2, and can improve the circumferential rigidity of the inner cylinder; the annular steel bracket 9 has an annular stiffening effect on the steel outer cylinder 1, and is beneficial to bearing inner cylinder load and self stability.
The integrated cigarette cap in the embodiment comprises a rain-proof cap and an ice-proof cap which are fixed at the top of the inner barrel 2. The rain-proof cap consists of a right circular truncated cone cylinder and a cylindrical cylinder, wherein the small-caliber end of the right circular truncated cone cylinder is connected with the inner cylinder 2, the large-caliber end is connected with the cylindrical cylinder, and the diameter of the cylindrical cylinder is larger than that of the inner cylinder 2; the anti-icing cap is connected with the other end of the right circular truncated cone cylinder body, and the height of the anti-icing cap meets the requirements of anti-icing and smoke downwash ranges. The anti-icing cap of the integrated cigarette cap is not provided with a heat-insulating layer, and the self temperature of the smoke is utilized to heat the anti-icing cap, so that the surface temperature of the anti-icing cap is higher than the icing temperature, and the anti-icing purpose is realized; the anti-icing cap of the integrated cigarette cap is made of the same material as the inner barrel or is made of a material with higher corrosion resistance grade.
In the embodiment, the drainage funnel is fixed at the bottom of the inner cylinder 2 and is a reverse cone cylinder 10, and a drainage pipe and an elbow 11 are arranged at the bottom of the drainage funnel 10. When needing to overhaul, the elbow 11 can be dismantled through the flange, and the work of dredging and deashing is accomplished. The outer side of the base part of the outer cylinder 1 is provided with a base rigid flange 14, and the side wall of the chimney is provided with a flue 13 and an inspection hole 12.
Referring to fig. 1 and 3 to 5, the steel ring beam 8 of the suspension support structure is made of angle steel, one side of one corner limb of the angle steel is a vertical plane and is connected with the outer side of the cylinder wall of the inner cylinder 2, and the other side of the corner limb is a horizontal plane and is in contact with the upper surface of the annular steel corbel top plate 901 for supporting the load of the whole inner cylinder 2.
The integrated smoke cap I6 comprises a rain-proof cap I602 and an anti-icing cap I, wherein the rain-proof cap I comprises a rain cap II 603 of a right circular truncated cone cylinder part and a rain cap I601 of a cylinder part; the second rain cap 603 is an inverted right circular truncated cone cylinder, the lower end of the second rain cap is connected with the inner cylinder 2, and the first rain cap 601 is a cylindrical cylinder and is connected with the upper end of the second inverted right circular truncated cone 603; the first rain hat 601 is arranged on the outer side of the upper anti-eaves 5, and the overlapping length of the first rain hat is larger than the telescopic deformation; the upper reflecting eave 5 is arranged on one side, close to the inner cylinder, of the sealing plate 4 at the top end of the outer cylinder. And a heat insulation layer 3 is arranged between the first rain hat 601, the second rain hat 603 and the inner barrel 2. The first anti-icing cap 602 is a cylindrical barrel and is connected with the upper end of the second rain cap 603 of the inverted right circular truncated cone barrel, and the first anti-icing cap 602 is not provided with heat insulation so as to keep the temperature of the outer side of the first anti-icing cap higher than the icing temperature and achieve the aim of anti-icing.
Example 2:
this example is identical to example 1 except that the integrated cigarette caps are different from the steel ring beam.
Referring to fig. 2 to 6, the steel ring beam 8 of the suspension support structure is made of channel steel, the plane of two limbs of the channel steel is a vertical plane and is connected with the outer side of the cylinder wall of the inner cylinder 2, and the side surface of one flange of the channel steel is a horizontal plane and is in contact with the upper surface of the annular steel corbel top plate 901 for supporting the load of the whole inner cylinder 2.
The integrated smoke cap II 7 comprises a rain cap and an ice-preventing cap II 702, wherein the rain cap comprises a rain cap IV 703 of a right circular truncated cone body part and a rain cap III 701 of a cylindrical barrel body part, the rain cap IV 703 is the right circular truncated cone body, and the upper end of the rain cap IV is connected with the inner barrel 2; the rain cap III 701 is a cylindrical barrel and is connected with the lower end of the right circular truncated cone rain cap IV 703; the third rain hat 701 is arranged on the outer side of the upper anti-eaves 5, and the overlapping length of the third rain hat is larger than the telescopic deformation; and a heat insulation layer 3 is arranged between the rain cap III 701, the rain cap IV 703 and the inner barrel 2. The second anti-icing cap 702 is a cylindrical barrel and is connected with the upper end of the fourth rain cap 703 of the right circular truncated cone barrel, and the second anti-icing cap 702 is not provided with heat insulation so as to keep the temperature of the outer side of the second anti-icing cap higher than the icing temperature and achieve the aim of anti-icing.
While the utility model has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model. Those skilled in the art can make various changes, modifications and equivalents to the disclosed technology without departing from the spirit and scope of the present invention, and all such changes, modifications and equivalents are intended to be included therein as equivalents of the present invention; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (9)
1. An inner and outer cylinder type steel chimney comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, wherein the outer wall of the inner cylinder is provided with a heat insulation layer; a suspension supporting structure is arranged between the inner cylinder and the outer cylinder; a liquid drainage device is also arranged in the inner cylinder.
2. An inner and outer cylindrical steel chimney according to claim 1, characterised in that: the suspension supporting structure comprises an annular steel corbel fixed on the inner wall of the outer cylinder and a steel ring beam fixed on the outer wall of the inner cylinder; the steel ring beam is arranged above the annular steel bracket.
3. An inner and outer cylindrical steel chimney according to claim 2, characterized in that: the steel ring beam comprises a vertical surface connected with the outer wall of the inner cylinder and a horizontal annular plate connected with the lower end of the vertical surface; the annular steel bracket comprises a horizontal annular plate-shaped bracket top plate connected with the inner wall of the outer cylinder and stiffening ribs arranged on the lower surface of the bracket top plate; and the horizontal annular plate of the steel ring beam is arranged on the upper surface of the bracket top plate.
4. An inner and outer cylindrical steel chimney according to claim 3, characterised in that: the outer wall of the inner barrel is adjacent to one end, far away from the outer barrel, of the bracket top plate.
5. An inner and outer cylindrical steel chimney according to claim 4, characterized in that: the integrated cigarette cap comprises a rain-proof cap connected with the top end of the inner barrel and an ice-preventing cap connected with the top end of the rain-proof cap; an upper reflecting brim is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder; the rain-proof cap comprises a right circular truncated cone cylinder part and a cylindrical cylinder part, and the diameter of the lower end of the right circular truncated cone cylinder part is smaller than that of the upper end of the right circular truncated cone cylinder part; the top end of the inner cylinder is connected with the lower end of the right circular truncated cone cylinder part, the upper end of the right circular truncated cone cylinder part is connected with the upper end of the cylindrical cylinder part, and the lower end of the cylindrical cylinder part is arranged on the periphery of the upper reflecting eave on the outer side of the inner cylinder; the lower end of the anti-icing cap is connected with the upper end of the right circular truncated cone cylinder body, and the periphery of the anti-icing cap is not provided with a heat insulation layer.
6. An inner and outer cylindrical steel chimney according to claim 4, characterized in that: the integrated smoke cap comprises a rain-proof cap connected with the top end of the inner barrel and an anti-icing cap connected with the top end of the inner barrel; an upper reflecting brim is arranged on the periphery of the heat-insulating layer close to the top end of the inner cylinder; the rain-proof cap comprises a right circular truncated cone cylinder part and a cylindrical cylinder part, and the diameter of the lower end of the right circular truncated cone cylinder part is larger than that of the upper end of the right circular truncated cone cylinder part; the top end of the inner cylinder is connected with the upper end of the right circular truncated cone cylinder part, the lower end of the right circular truncated cone cylinder part is connected with the upper end of the cylindrical cylinder part, and the lower end of the cylindrical cylinder part is arranged on the periphery of the upper reflecting eave on the outer side of the inner cylinder; the lower end of the anti-icing cap is connected with the upper end of the right circular truncated cone cylinder body, and the periphery of the anti-icing cap is not provided with a heat insulation layer.
7. An inner and outer cylindrical steel chimney according to any one of claims 5 and 6, characterized in that: the anti-icing cap is made of the same material as the inner barrel or made of a more corrosion-resistant material.
8. An inner and outer cylindrical steel chimney according to claim 7, characterized in that: the liquid discharge device comprises a liquid discharge funnel arranged at the bottom in the inner cylinder and a liquid discharge pipe arranged below the liquid discharge funnel, the liquid discharge funnel is arranged into a reverse cone cylinder, and an elbow is arranged between the bottom of the liquid discharge pipe and the bottom of the liquid discharge funnel.
9. An inner and outer drum type steel chimney according to claim 1, characterized in that: the heat-insulating layer is a heat-insulating material or an air sealing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122634227.XU CN216769457U (en) | 2021-10-29 | 2021-10-29 | Inner and outer cylinder type steel chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122634227.XU CN216769457U (en) | 2021-10-29 | 2021-10-29 | Inner and outer cylinder type steel chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216769457U true CN216769457U (en) | 2022-06-17 |
Family
ID=81961933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122634227.XU Active CN216769457U (en) | 2021-10-29 | 2021-10-29 | Inner and outer cylinder type steel chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216769457U (en) |
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2021
- 2021-10-29 CN CN202122634227.XU patent/CN216769457U/en active Active
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