Suspended sleeve clustered chimney

Abstract

The utility model discloses a suspended sleeve bundling type chimney, and relates to the technical field of industrial chimneys. A first reinforcing ring and a plurality of second reinforcing rings which are positioned below the first reinforcing ring and are arranged at intervals up and down are coaxially arranged on the peripheral surface of the steel inner cylinder; a supporting layer, a plurality of shake stopping layers arranged at intervals up and down and a plurality of steel inner cylinders are arranged in a vertically-through containing cavity of the outer enclosure structure. In a plurality of suspension structures evenly arranged in the circumferential direction of the steel inner cylinder, a first connecting base is fixedly connected with the outer circumferential face of a first reinforcing ring and connected with a supporting layer located below the first connecting base through a bolt, and an elastic base plate is arranged between the first connecting base and the supporting layer. In the multiple shake-stopping structures evenly arranged in the circumferential direction of the steel inner cylinder, one end of a second connecting base is fixedly connected with the outer circumferential face of a second reinforcing ring, two horizontally-opposite gaps are formed between the other end of the second connecting base and the shake-stopping layer, and elastic filling layers are arranged in the gaps. Steel materials can be saved, available space at the bottom is increased, shock resistance and wind resistance are improved, and the steel inner cylinder is prevented from being damaged easily.

Description

Technical Field

[0001] This utility model relates to the field of industrial chimney technology, and in particular to a suspended sleeve-type cluster chimney. Background Technology

[0002] In current domestic municipal solid waste incineration power generation projects, sleeve-type chimneys are commonly used to discharge flue gas. These chimneys mainly consist of an outer casing (or outer cylinder) and a steel inner cylinder. The inner cylinder primarily employs a self-supporting design, utilizing its own compressive strength and weight to maintain a bending state. The wall thickness of the inner cylinder is controlled by stability. Specifically, for a 140m high sleeve-type chimney, the inner wall thickness of the steel inner cylinder is set sequentially from top to bottom as 10mm, 12mm, 14mm, and 16mm. This design results in high material consumption for the inner cylinder. Furthermore, due to the weight of the inner cylinder, frame columns are required at its base for support, which reduces the usable working space of the flue gas monitoring chamber at the bottom of the chimney and increases the chimney's footprint.

[0003] This shows that existing sleeve-type chimneys need further structural optimization. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a suspended sleeve-type clustered chimney, which can save material of the steel inner cylinder, increase the usable working space at the bottom of the steel inner cylinder, and also improve the earthquake and wind resistance, and prevent the steel inner cylinder from being easily deformed or damaged.

[0005] This utility model embodiment provides a suspended sleeve-type clustered chimney, which includes:

[0006] A steel inner cylinder extends in the vertical direction. The outer circumferential surface of the steel inner cylinder is coaxially provided with a first reinforcing ring and a number of second reinforcing rings located below the first reinforcing ring. All the second reinforcing rings are arranged at intervals in the vertical direction.

[0007] The outer enclosure structure has a through-cavity, which contains a support layer and several anti-sway layers located below the support layer. All the anti-sway layers are arranged at intervals in the vertical direction. Several inner steel cylinders are provided and located within the cavity.

[0008] The suspension structure has multiple components and is evenly arranged along the circumference of the inner steel cylinder. The suspension structure includes a first connecting seat and an elastic pad. The first connecting seat is fixedly connected to the outer circumferential surface of the first reinforcing ring. The first connecting seat is located above the support layer and is connected to the support layer by bolts. The elastic pad is disposed between the first connecting seat and the support layer.

[0009] The anti-sway structure has multiple components and is evenly arranged along the circumference of the steel inner cylinder. The anti-sway structure includes a second connecting seat and an elastic filling layer. One end of the second connecting seat is fixedly connected to the outer circumferential surface of the second reinforcing ring, and the other end has two horizontally opposite gaps with the anti-sway layer. The elastic filling layer is disposed in the gaps.

[0010] The suspended sleeve-type cluster chimney according to the present invention has at least the following beneficial effects: the outer circumferential surface of the steel inner cylinder is fixedly connected to the first connecting seat of the suspension structure through the first reinforcing ring, and the first connecting seat is bolted to the support layer of the outer protective structure, so that the self-weight of the steel inner cylinder is borne by the support layer, and the steel inner cylinder is in a suspended installation state, so that the steel inner cylinder is subjected to tension. The wall thickness of the steel inner cylinder is controlled by the tensile bearing capacity of the material. Therefore, the wall thickness of the steel inner cylinder can be optimized, saving steel materials. At the same time, the bottom of the steel inner cylinder does not need to be set with a support structure, which can increase the available working space at the bottom of the steel inner cylinder. Moreover, an elastic pad is set between the support layer and the first connecting seat, so that the support layer and the first connecting seat adopt a semi-rigid connection method, which can release the temperature stress generated by the temperature load in the direction of gravity. Therefore, while restricting the movement and rotation of the steel inner cylinder on the horizontal plane, it allows the steel inner cylinder to undergo appropriate displacement in the direction of gravity.

[0011] Furthermore, the outer circumferential surface of the steel inner cylinder is fixedly connected to the second connecting seat of the anti-sway structure through the second reinforcing ring, and the elastic filling layer is placed in the two gaps between the second connecting seat and the anti-sway layer of the outer protective structure, so that the anti-sway layer and the second connecting seat adopt a semi-rigid connection method, avoiding stress concentration caused by temperature load, reducing or even avoiding the possibility of the steel inner cylinder swaying, and improving the stability of the steel inner cylinder.

[0012] By employing the aforementioned suspension and anti-sway structures between the inner steel cylinder and the outer envelope, the seismic and wind resistance can be improved. Furthermore, considering the high stress levels at the corresponding support and anti-sway layers of the inner steel cylinder, a first and second reinforcing ring are installed on the inner steel cylinder to enhance its stiffness at the suspension and anti-sway points. Therefore, under external loads such as horizontal earthquakes or wind loads, the deformation of the inner steel cylinder and the outer envelope can be coordinated, preventing the inner steel cylinder from easily deforming excessively or even being damaged.

[0013] In some embodiments of the utility model, there is a vertical distance between the upper end face of the steel inner cylinder and the first reinforcing ring.

[0014] In some embodiments of this utility model, the outer circumferential surface of the steel inner cylinder is provided with a plurality of annular stiffening ribs coaxially, all of which are spaced apart along the extension direction of the steel inner cylinder, and the cross-sectional shape of the annular stiffening ribs is L-shaped; and / or,

[0015] The outer circumference of the steel inner cylinder is provided with thickened portions at positions above and below the first reinforcing ring, and the thickened portions are located close to the first reinforcing ring.

[0016] In some embodiments of this utility model, multiple first reinforcing rings are provided and arranged at intervals along the vertical direction, and all the first reinforcing rings are welded to the first connecting seat.

[0017] In some embodiments of this utility model, a reinforcing plate extending vertically is provided between any two adjacent first reinforcing rings, and the upper and lower ends of the reinforcing plate are respectively fixedly connected to the first reinforcing rings on the upper and lower sides. The reinforcing plate is fixedly connected to the outer circumferential surface of the steel inner cylinder. Multiple reinforcing plates are provided and are evenly arranged along the circumference of the steel inner cylinder.

[0018] In some embodiments of this utility model, the first reinforcing ring includes a first vertical plate and a first horizontal plate, both of which are circular. The first vertical plate and the first horizontal plate are coaxially arranged with the steel inner cylinder. The inner circumferential surface of the first vertical plate has a horizontal distance from the outer circumferential surface of the steel inner cylinder. There are two first horizontal plates, which are fixedly connected to the upper and lower end surfaces of the first vertical plate, respectively. The inner circumferential surface of the first horizontal plate is fixedly connected to the outer circumferential surface of the steel inner cylinder.

[0019] In some embodiments of this utility model, the first reinforcing ring further includes a first stiffening rib extending in the vertical direction. The first stiffening rib is located between the two first horizontal plates. The first stiffening rib is fixedly connected to the outer circumferential surface of the steel inner cylinder, the first vertical plate, and the two first horizontal plates, respectively. Multiple first stiffening ribs are provided and evenly arranged along the circumference of the steel inner cylinder; and / or,

[0020] The structure of the second reinforcing ring is the same as that of the first reinforcing ring.

[0021] In some embodiments of this utility model, the support layer includes four first I-beams, all of which are arranged perpendicularly in pairs on a horizontal plane. Each first I-beam has multiple second stiffening ribs extending vertically at positions corresponding to the elastic pad; and / or,

[0022] The elastic filler layer is one of a composite polytetrafluoroethylene layer, a fluororubber layer, and a silicone rubber layer; and / or,

[0023] The elastic pad is a rubber gasket; and / or,

[0024] The external enclosure structure is either a reinforced concrete shear wall structure or a steel tower structure.

[0025] In some embodiments of this utility model, the anti-sway layer includes four second I-beams, all of which are arranged vertically in pairs on a horizontal plane. A third I-beam is provided at the position of the second connecting seat corresponding to the second I-beam. The second connecting seat includes two connecting frames that are horizontally symmetrical about the third I-beam, and there is a gap between the connecting frames and the third I-beam.

[0026] In some embodiments of this utility model, an end cap plate is provided at one end of the third I-beam near the inner steel cylinder.

[0027] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0028] Figure 1 This is a cross-sectional schematic diagram of the suspended sleeve-type clustered chimney at the support layer position according to an embodiment of the present utility model;

[0029] Figure 2 This is a cross-sectional schematic diagram of a suspended sleeve-type clustered chimney at the anti-sway layer position according to an embodiment of the present utility model.

[0030] Figure 3 This is a schematic diagram of the suspension structure provided according to an embodiment of the present utility model from a top view angle;

[0031] Figure 4 yes Figure 3 Schematic sectional view of section D1-D1;

[0032] Figure 5 yes Figure 3 Schematic sectional view of section D2-D2;

[0033] Figure 6 yes Figure 3 A schematic diagram of the suspension structure viewed along the D3 direction;

[0034] Figure 7 This is a structural schematic diagram of the base plate in the first connecting seat provided according to an embodiment of the present utility model;

[0035] Figure 8 This is a schematic diagram of the anti-sway structure provided according to an embodiment of the present utility model from a top view angle;

[0036] Figure 9 yes Figure 8 Schematic diagram of the cross section D4-D4.

[0037] Reference numerals: 100, steel inner cylinder; 110, first reinforcing ring; 111, first vertical plate; 112, first horizontal plate; 113, first stiffening rib; 120, annular stiffening rib; 130, reinforcing plate; 140, second reinforcing ring;

[0038] 200. External envelope structure; 210. Support layer; 211. First I-beam; 212. Second stiffening rib; 220. Anti-sway layer; 221. Second I-beam; 222. Third I-beam; 223. End cap plate;

[0039] 300. Suspension structure; 310. First connecting seat; 311. Base plate; 312. First layer plate; 313. Second layer plate; 314. Top plate; 315. First outer plate; 316. Second outer plate; 317. Side plate; 318. Curved surface; 319. Connecting hole; 320. Bolt; 330. Elastic pad;

[0040] 400. Anti-sway structure; 411. Second vertical plate; 412. Second horizontal plate; 413. Third horizontal plate; 420. Elastic filling layer. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The following is for reference. Figures 1 to 9This invention describes a suspended sleeve-type clustered chimney provided according to an embodiment of the present invention.

[0045] like Figures 1 to 9 As shown, the suspended sleeve-type clustered chimney according to this embodiment of the present invention can be applied in industries such as power, chemical and metallurgy to achieve good flue gas emission performance. The suspended sleeve-type clustered chimney of this embodiment has the following advantages: it can reduce the amount of steel used in the inner steel cylinder 100 and increase the usable working space at the bottom of the inner steel cylinder 100; at the same time, it can improve the overall seismic and wind resistance of the suspended sleeve-type clustered chimney.

[0046] The height design of the suspended sleeve cluster chimney in this embodiment can exceed 60m.

[0047] The suspended sleeve cluster chimney includes a steel inner cylinder 100, an outer protective structure 200, a suspension structure 300, and an anti-sway structure 400.

[0048] The steel inner cylinder 100 extends vertically and has a central axis extending vertically. A first reinforcing ring 110 and a second reinforcing ring 140 are provided on the outer circumferential surface of the steel inner cylinder 100. Both the first reinforcing ring 110 and the second reinforcing ring 140 are coaxially arranged with the steel inner cylinder 100 and fixed to the outer circumferential surface of the steel inner cylinder 100 by welding. Several second reinforcing rings 140 are located below the first reinforcing ring 110, and all the second reinforcing rings 140 are arranged at certain intervals along the vertical direction.

[0049] It is understood that the number of second reinforcing rings 140 can be one, two, or more, which can be selected according to actual design needs and is not specifically limited here. The vertical spacing between any two adjacent second reinforcing rings 140 can be 15m to 30m, or less than 15m, which can also be set according to actual needs and is not specifically limited here. The steel inner cylinder 100 is used for exhausting flue gas. The wall thickness and inner diameter of the steel inner cylinder 100, the specific dimensions of the first reinforcing ring 110, and the specific dimensions of the second reinforcing ring 140 can be selected according to actual design results and are not specifically limited here. The first reinforcing ring 110 and the second reinforcing ring 140 can be ring-shaped steel beams.

[0050] The outer enclosure structure 200 has a receiving cavity that extends vertically. A support layer 210 and an anti-sway layer 220 are provided within the receiving cavity. Both the support layer 210 and the anti-sway layer 220 are fixedly installed. The anti-sway layer 220 is located below the support layer 210. Several anti-sway layers 220 are provided, and the number of anti-sway layers 220 is the same as the number of second reinforcing rings 140. All anti-sway layers 220 are arranged at certain intervals along the vertical direction. Several steel inner cylinders 100 are provided, and all steel inner cylinders 100 are housed within the receiving cavity.

[0051] Understandably, the outer envelope 200, as the main load-bearing and wind-pressure-resistant structure of the suspended, sleeve-type clustered chimney, is capable of withstanding external loads. The outer envelope 200 can be a reinforced concrete shear wall structure or a steel tower structure, undertaking the overall load transfer function of the suspended, sleeve-type clustered chimney. In this embodiment, there are two steel inner cylinders 100, spaced apart along the left-right direction.

[0052] Multiple suspension structures 300 are provided, and all suspension structures 300 are evenly arranged along the circumference of the steel inner cylinder 100. Specifically, each suspension structure 300 includes a first connecting seat 310 and an elastic pad 330. The first connecting seat 310 and the outer circumferential surface of the first reinforcing ring 110 can be fixedly connected by welding. The first connecting seat 310 is located above the support layer 210, and the first connecting seat 310 and the support layer 210 are connected by bolts 320, so that the support layer 210 can provide support for the first connecting seat 310, the first reinforcing ring 110, the second reinforcing ring 140, and the steel inner cylinder 100, and can restrict the movement and rotation of the steel inner cylinder 100 in the horizontal direction.

[0053] An elastic pad 330 is disposed between the first connecting seat 310 and the support layer 210. The upper surface of the elastic pad 330 is in contact with the first connecting seat 310, and the lower surface of the elastic pad 330 is in contact with the support layer 210. With this design, the elastic deformation characteristics of the elastic pad 330 can be used to allow the steel inner cylinder 100 to undergo a certain displacement in the vertical direction, thereby releasing the temperature stress generated by the temperature load in the direction of gravity.

[0054] Understandably, each steel inner cylinder 100 is equipped with a certain number of suspension structures 300 around its perimeter. These suspension structures 300 effectively support the steel inner cylinder 100, ensuring it is suspended. The number of suspension structures 300 can be four to eight, and the specific dimensions of the elastic pads 330 are not limited, allowing selection based on actual needs. The elastic pads 330 are rubber pads with a certain degree of elastic deformation capability. Of course, the elastic pads 330 can also be made of other elastic materials. The first connecting seat 310 can be made of metal, such as stainless steel. The specific structure of the first connecting seat 310 is not limited, as long as it can fit snugly and be fixedly connected to the outer circumferential surface of the first reinforcing ring 110, and be connected to the support layer 210 via bolts 320.

[0055] In this embodiment, the thickness of the elastic pad 330 is 50mm, and the number of suspension structures 300 is four.

[0056] Each anti-sway layer 220 is provided with an anti-sway structure 400. Multiple anti-sway structures 400 are provided, and all anti-sway structures 400 are evenly arranged along the circumference of the inner steel cylinder 100. Specifically, the anti-sway structure 400 includes a second connecting seat and an elastic filling layer 420. One end of the second connecting seat is fixedly connected to the outer circumferential surface of the second reinforcing ring 140 by welding. The other end of the second connecting seat has two horizontally opposing gaps with the anti-sway layer 220, and the elastic filling layer 420 is disposed within these gaps, connecting to both the second connecting seat and the anti-sway layer 220.

[0057] Understandably, a certain number of anti-sway structures 400 are installed on the outer periphery of each steel inner cylinder 100. These anti-sway structures 400 provide a sway-stopping effect on the steel inner cylinder 100 on a horizontal plane. The number and spacing of the anti-sway structures 400 are not limited and can be set according to actual needs. The elastic filling layer 420 can be a composite polytetrafluoroethylene layer, a fluororubber layer, or a silicone rubber layer. The second connecting seat can be made of metal such as stainless steel. The specific structure of the second connecting seat is not limited, as long as it fits snugly and is fixedly connected to the outer periphery of the second reinforcing ring 140, and forms two horizontally opposite gaps between the second connecting seat and the anti-sway layer 220.

[0058] In this embodiment, the gap size is 10mm, and the number of anti-sway structures 400 is four.

[0059] The suspended sleeve-type cluster chimney of this embodiment adopts the above-described structural design, which can change the stress mode of the steel inner cylinder 100, changing the stress mode of the steel inner cylinder 100 from the traditional compression and bending stress mode to the tension mode. This allows the wall thickness of the steel inner cylinder 100 to be optimized and thinned. For example, the wall thickness of the steel inner cylinder 100 can be reduced to 6mm to 8mm, which can save 30% of the steel used in the steel inner cylinder 100 and help reduce the project cost. At the same time, the weight of the steel inner cylinder 100 itself is borne by the support layer 210, which can eliminate the bottom support structure of the steel inner cylinder 100, increase the available working space at the bottom of the steel inner cylinder 100, and improve the space utilization rate.

[0060] Furthermore, the semi-rigid connection between the suspension structure 300 and the support layer 210, and between the anti-sway structure 400 and the anti-sway layer 220, can avoid stress concentration caused by temperature loads, thereby improving the structural stability of the suspended sleeve cluster chimney. This enhances the ability of the suspended sleeve cluster chimney to resist horizontal seismic forces and wind loads, ultimately enabling the suspended sleeve cluster chimney to adapt to seismically active zones or areas with frequent strong winds, ensuring its safe and stable operation in complex natural environments.

[0061] Furthermore, existing self-supporting steel chimneys require on-site welding and assembly, which carries high risks for high-altitude operations and has a long construction period. However, the suspended, sleeve-type cluster chimney of this embodiment can be modularly prefabricated, such as by manufacturing the steel inner cylinder 100 in sections, shortening the on-site construction period and reducing the difficulty of high-altitude operations. Before construction, finite element modeling technology can be used for calculation and analysis to determine the wall thickness of the steel inner cylinder 100, the number of suspension structures 300, etc.

[0062] In some embodiments, such as Figure 4 and Figure 5 As shown, there is a vertical distance between the upper end face of the steel inner cylinder 100 and the first reinforcing ring 110. In this embodiment, a suspension structure 300 is provided at a position 8m away from the top of the steel inner cylinder 100. Then, starting from the position of the suspension structure 300, multiple anti-sway structures 400 are provided sequentially at intervals of 15m along the extension direction of the steel inner cylinder 100.

[0063] In some embodiments, such as Figure 4 and Figure 5 As shown, the outer periphery of the steel inner cylinder 100 is provided with thickened portions (not shown in the figure) at positions above and below the first reinforcing ring 110. Viewed vertically, the thickened portions are annular, and are located close to the first reinforcing ring 110. The thickened portions are integrally formed with the steel inner cylinder 100.

[0064] It is understandable that the wall thickness and vertical extension dimensions of the thickened portion can be determined according to actual design requirements, and are not specifically limited here. Considering that the steel inner cylinder 100 experiences high stress at the location corresponding to the suspension structure 300, the steel inner cylinder 100 is locally thickened by setting a thickened portion. This strengthens the structural strength of the steel inner cylinder 100 near the suspension structure 300, disperses stress, ensures a good connection between the steel inner cylinder 100 and the first reinforcing ring 110, and thus ensures the structural safety of the suspended sleeve-type bundled chimney.

[0065] In this embodiment, the steel inner cylinder 100 is provided with thickened portions at positions 0.5m above and below the suspension structure 300, making the steel inner cylinder 100 at these positions 14mm to 20mm thick, with the vertical extension dimension of the thickened portions being 0.5m. Thickened portions are also arranged on the upper and lower sides of the first reinforcing ring 110, extending vertically to the first reinforcing ring 110.

[0066] Alternatively, the outer periphery of the steel inner cylinder 100 may also have thickened portions at positions above and below the second reinforcing ring 140, with the thickened portions positioned close to the second reinforcing ring 140.

[0067] In some embodiments, such as Figure 4As shown, the outer circumferential surface of the steel inner cylinder 100 is provided with annular stiffening ribs 120. The annular stiffening ribs 120 are coaxially arranged with the steel inner cylinder 100 and can be fixed to the outer circumferential surface of the steel inner cylinder 100 by welding. Multiple annular stiffening ribs 120 are provided, and all annular stiffening ribs 120 are arranged at certain intervals along the extension direction of the steel inner cylinder 100. The cross-sectional shape of the annular stiffening ribs 120 is L-shaped. The annular stiffening ribs 120 can be L-shaped angle steel. The annular stiffening ribs 120 are arranged to avoid the first reinforcing ring 110 and the second reinforcing ring 140.

[0068] Understandably, since the steel inner cylinder 100 is subjected to various external forces during use, such as wind force, seismic force, and flue gas pressure inside the chimney, the installation of annular stiffening ribs 120 can increase the bending and torsional resistance of the steel inner cylinder 100, enabling it to better withstand these external forces and effectively preventing deformation or instability. The spacing between the annular stiffening ribs 120 can not exceed 2m.

[0069] In some embodiments, such as Figures 4 to 6 As shown, multiple first reinforcing rings 110 are provided, and all the first reinforcing rings 110 are arranged at certain intervals along the vertical direction. All the first reinforcing rings 110 are welded to the first connecting seat 310. The first reinforcing rings 110 are arranged along the periphery of the steel inner cylinder 100.

[0070] By setting a first reinforcing ring 110 to indirectly connect the steel inner cylinder 100 with the suspension structure 300, the lateral stiffness of the steel inner cylinder 100 at the suspension position can be improved. Under external loads such as horizontal earthquakes or wind loads, the deformation coordination between the steel inner cylinder 100 and the outer maintenance structure can be achieved, avoiding damage to the steel inner cylinder 100 at the suspension position due to excessive deformation or excessive stress.

[0071] Of course, the number of the first reinforcing ring 110 can also be one.

[0072] Furthermore, such as Figure 6 As shown, a reinforcing plate 130 is provided between any two adjacent first reinforcing rings 110. The reinforcing plate 130 extends in the vertical direction, and its upper and lower ends are respectively fixedly connected to the first reinforcing rings 110 located on its upper and lower sides by welding. Simultaneously, the reinforcing plate 130 is fixedly connected to the outer circumferential surface of the steel inner cylinder 100. Multiple reinforcing plates 130 are provided, and all reinforcing plates 130 are evenly arranged along the circumference of the steel inner cylinder 100. The reinforcing plate 130 can be a rectangular stainless steel plate. This arrangement enhances the connection between the first reinforcing rings 110 and the steel inner cylinder 100.

[0073] In some embodiments, such as Figure 4 and Figure 5 As shown, the first reinforcing ring 110 includes a first vertical plate 111 and a first horizontal plate 112. Both the first vertical plate 111 and the first horizontal plate 112 are annular when viewed vertically. Both the first vertical plate 111 and the first horizontal plate 112 are coaxially arranged with the steel inner cylinder 100. The inner circumferential surface of the first vertical plate 111 has a horizontal distance from the outer circumferential surface of the steel inner cylinder 100. The specific value of this horizontal distance can be set according to actual conditions and is not specifically limited here. Two first horizontal plates 112 are provided, and the two first horizontal plates 112 are fixedly connected to the upper and lower end surfaces of the first vertical plate 111 respectively by welding. Simultaneously, the inner circumferential surface of the first horizontal plate 112 is fixedly connected to the outer circumferential surface of the steel inner cylinder 100 by welding. The first connecting seat 310 is fitted and fixedly connected to the outer circumferential surface of the first vertical plate 111. In this embodiment, the structure of the second reinforcing ring 140 is consistent with the structure of the first reinforcing ring 110.

[0074] In a preferred embodiment, the first reinforcing ring 110 further includes a first stiffening rib 113, which extends vertically and is located between two first horizontal plates 112. The first stiffening rib 113 is fixedly connected to the outer circumferential surface of the steel inner cylinder 100, the first vertical plate 111, and the two first horizontal plates 112 by welding. Multiple first stiffening ribs 113 are provided, and all first stiffening ribs 113 are evenly arranged along the circumference of the steel inner cylinder 100. In this embodiment, the structure of the second reinforcing ring 140 is consistent with the structure of the first reinforcing ring 110.

[0075] In this embodiment, as Figures 3 to 7 As shown, the steel inner cylinder 100 is provided with two first reinforcing rings 110. The first connecting seat 310 includes a bottom plate 311, a first layer plate 312, a second layer plate 313, a top plate 314, a first outer plate 315, a second outer plate 316, and a side plate 317. The bottom plate 311, the first layer plate 312, the second layer plate 313, and the top plate 314 are all horizontally arranged and sequentially from bottom to top. The bottom plate 311 and the first layer plate 312 are respectively fitted and welded to the two first horizontal plates 112 of the lower first reinforcing ring 110. The second layer plate 313 and the top plate 314 are respectively fitted and welded to the two first horizontal plates 112 of the upper first reinforcing ring 110. For example, the bottom plate 311 has an arc surface 318, allowing the bottom plate 311 to fit and conform to the outer circumferential surface of the first horizontal plate 112. An elastic pad 330 is provided between the lower surface of the base plate 311 and the upper surface of the support layer 210. The base plate 311 is provided with two connecting holes 319 so that the base plate 311 and the support layer 210 can be fixedly connected by bolts 320.

[0076] Furthermore, both the first outer plate 315 and the second outer plate 316 are located on the side of the bottom plate 311 away from the inner steel cylinder 100. The first outer plate 315 extends vertically, while the second outer plate 316 is inclined. The first outer plate 315 is located below the second outer plate 316 and is fixedly connected to the second outer plate 316 to form an outer plate. This outer plate is also fixedly connected to the bottom plate 311, the first layer plate 312, the second layer plate 313, and the top plate 314. Additionally, the side plate 317 extends vertically and is perpendicular to the first outer plate 315 and the bottom plate 311. Two side plates 317 are provided, located on opposite sides of the bottom plate 311 in the horizontal direction. The side plates 317 are also fixedly connected to the bottom plate 311, the first layer plate 312, the second layer plate 313, the top plate 314, the first outer plate 315, and the second outer plate 316.

[0077] In some embodiments, such as Figure 1 , Figure 4 and Figure 6 As shown, the support layer 210 includes four first I-beams 211, all of which are arranged vertically in pairs on the horizontal plane. The first I-beams 211 are fixedly connected to the inner wall of the receiving cavity of the outer protective structure 200, and are located on the outside of the inner steel cylinder 100. Furthermore, each first I-beam 211 has a second stiffening rib 212 at a position corresponding to the elastic pad 330. Multiple second stiffening ribs 212 are provided and spaced apart along the length of the first I-beam 211.

[0078] It is understood that the first I-beam 211 includes a web and upper and lower flanges. The upper surface of the upper flange is fixedly connected to the first connecting seat 310, and an elastic pad 330 is added between the upper flange and the first connecting seat 310. All the second stiffening ribs 212 are simultaneously fixedly connected to the web and the upper and lower flanges. In this embodiment, there are three second stiffening ribs 212. By setting the second stiffening ribs 212 at the position of the first I-beam 211 corresponding to the elastic pad 330, the strength of the first I-beam 211 is improved, making the first I-beam 211 less prone to deformation, thereby ensuring that the first I-beam 211 can stably support the steel inner cylinder 100 for a long time.

[0079] Furthermore, transverse stiffening ribs can be added to the structure of the first I-beam 211, so that the transverse stiffening ribs are simultaneously fixedly connected to the web and all the second stiffening ribs 212.

[0080] In some embodiments, such as Figure 2 , Figure 8 and Figure 9As shown, the anti-sway layer 220 includes four second I-beams 221. All the second I-beams 221 are arranged perpendicularly in pairs on the horizontal plane. The second I-beams 221 are fixedly connected to the inner wall of the receiving cavity of the outer protective structure 200, and are located on the outer side of the inner steel cylinder 100. Furthermore, a third I-beam 222 is provided at the position corresponding to the second connecting seat of the second I-beams 221. The third I-beam 222 is perpendicularly connected to the second I-beams 221 on the horizontal plane and is fixed to the second I-beams 221. One end of the third I-beam 222 is located near the second connecting seat.

[0081] The second connecting seat includes two connecting frames, which are horizontally symmetrical about the third I-beam 222. The two connecting frames are located on opposite sides of the width direction of the third I-beam 222, and there is a gap between the connecting frames and the third I-beam 222. An elastic filling layer 420 is provided in the gap.

[0082] In this embodiment, there is one second reinforcing ring 140. Each connecting frame includes a second vertical plate 411 and two second horizontal plates 412. The second vertical plate 411 extends vertically and is fitted and welded to the outer peripheral surface of the second reinforcing ring 140. The two second horizontal plates 412 are arranged at intervals vertically and are fitted and welded to the outer peripheral surface of the second reinforcing ring 140. At the same time, the second horizontal plates 412 are vertically connected to the second vertical plate 411. The second horizontal plate 412 is located on the side of the second vertical plate 411 away from the third I-beam 222. The side of the second vertical plate 411 near the third I-beam 222 is horizontally opposite to one of the flanges of the third I-beam 222. Furthermore, there is a gap between the side of the second vertical plate 411 near the third I-beam 222 and the flange of the third I-beam 222, and an elastic filling layer 420 is provided in the gap.

[0083] Furthermore, the connecting frame also includes a third horizontal plate 413, which is located above or below the second horizontal plate 412 and is fitted and welded to the outer circumferential surface of the inner steel cylinder 100. Simultaneously, the third horizontal plate 413 is vertically connected to the second vertical plate 411. The third horizontal plate 413 is located on the side of the second vertical plate 411 away from the third I-beam 222.

[0084] It is understandable that by setting a second reinforcing ring 140 to indirectly connect the steel inner cylinder 100 with the anti-sway structure 400, the lateral stiffness of the steel inner cylinder 100 at the anti-sway position can be improved, and the deformation coordination between the steel inner cylinder 100 and the outer enclosure structure 200 can be achieved. This avoids damage to the steel inner cylinder 100 at the anti-sway position due to excessive deformation under external loads such as horizontal earthquakes or wind loads.

[0085] Furthermore, the third I-beam 222 is provided with an end cap 223 at one end near the inner steel cylinder 100. The end cap 223 is welded to the web and two flanges of the third I-beam 222. This design can improve the strength of the third I-beam 222 at the position corresponding to the elastic filling layer 420 and prevent the third I-beam 222 from being easily deformed.

[0086] Of course, it is not excluded that in other embodiments, there are two third I-beams 222, which are respectively located on both sides of the second connecting seat, and there is a gap between one of the flanges of each third I-beam 222 and the second connecting seat, and the elastic filling layer 420 is disposed in the gap in a filling manner.

[0087] The first I-beam 211, the second I-beam 221, and the third I-beam 222 can be steel beams.

[0088] It is understood that in the suspended sleeve-type cluster chimney provided in the above embodiment, since the outer circumferential surface of the steel inner cylinder 100 is fixedly connected to the first connecting seat 310 of the suspension structure 300 through the first reinforcing ring 110, and the first connecting seat 310 is connected to the support layer 210 of the outer protective structure 200 through bolts 320, the self-weight of the steel inner cylinder 100 is borne by the support layer 210, so that the steel inner cylinder 100 is in a suspended installation state, and the force on the steel inner cylinder 100 is in a tensile mode. The wall thickness of the steel inner cylinder 100 is controlled by the tensile bearing capacity of the material. Therefore, it is possible to optimize... The reduced wall thickness of the steel inner cylinder 100 saves steel material. At the same time, the bottom of the steel inner cylinder 100 does not require a support structure, which increases the usable working space at the bottom of the steel inner cylinder 100. Furthermore, an elastic pad 330 is provided between the support layer 210 and the first connecting seat 310, so that the support layer 210 and the first connecting seat 310 adopt a semi-rigid connection method, which can release the temperature stress generated by the temperature load in the direction of gravity. Therefore, while restricting the movement and rotation of the steel inner cylinder 100 on the horizontal plane, it allows the steel inner cylinder 100 to undergo appropriate displacement in the direction of gravity.

[0089] Furthermore, the outer circumferential surface of the steel inner cylinder 100 is fixedly connected to the second connecting seat of the anti-sway structure 400 through the second reinforcing ring 140, and the elastic filling layer 420 is disposed in the two gaps between the second connecting seat and the anti-sway layer 220 of the outer protective structure 200, so that the anti-sway layer 220 and the second connecting seat adopt a semi-rigid connection method, avoiding stress concentration caused by temperature load, reducing or even avoiding the possibility of the steel inner cylinder 100 swaying, and improving the stability of the steel inner cylinder 100.

[0090] By employing the aforementioned suspension structure 300 and anti-sway structure 400 between the inner steel cylinder 100 and the outer enclosure structure 200, the seismic and wind resistance can be improved. Furthermore, considering the high stress at the corresponding support layer 210 and anti-sway layer 220 locations of the inner steel cylinder 100, a first reinforcing ring 110 and a second reinforcing ring 140 are provided on the inner steel cylinder 100 to enhance the stiffness of the inner steel cylinder 100 at the suspension and anti-sway locations. Therefore, under external loads such as horizontal earthquakes or wind loads, the deformation of the inner steel cylinder 100 and the outer enclosure structure 200 can be coordinated, preventing the inner steel cylinder 100 from easily deforming excessively or even being damaged.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A suspended, sleeve-type clustered chimney, characterized in that, include: A steel inner cylinder extends in the vertical direction. The outer circumferential surface of the steel inner cylinder is coaxially provided with a first reinforcing ring and a number of second reinforcing rings located below the first reinforcing ring. All the second reinforcing rings are arranged at intervals in the vertical direction. The outer enclosure structure has a through-cavity, which contains a support layer and several anti-sway layers located below the support layer. All the anti-sway layers are arranged at intervals in the vertical direction. Several inner steel cylinders are provided and located within the cavity. The suspension structure has multiple components and is evenly arranged along the circumference of the inner steel cylinder. The suspension structure includes a first connecting seat and an elastic pad. The first connecting seat is fixedly connected to the outer circumferential surface of the first reinforcing ring. The first connecting seat is located above the support layer and is connected to the support layer by bolts. The elastic pad is disposed between the first connecting seat and the support layer. The anti-sway structure has multiple components and is evenly arranged along the circumference of the steel inner cylinder. The anti-sway structure includes a second connecting seat and an elastic filling layer. One end of the second connecting seat is fixedly connected to the outer circumferential surface of the second reinforcing ring, and the other end has two horizontally opposite gaps with the anti-sway layer. The elastic filling layer is disposed in the gaps.

2. The suspended sleeve-type cluster chimney according to claim 1, characterized in that, There is a vertical gap between the upper end face of the steel inner cylinder and the first reinforcing ring.

3. The suspended sleeve-type cluster chimney according to claim 2, characterized in that, The outer circumferential surface of the steel inner cylinder is provided with multiple annular stiffening ribs coaxially, all of which are spaced apart along the extension direction of the steel inner cylinder, and the cross-sectional shape of the annular stiffening ribs is L-shaped; and / or, The outer circumference of the steel inner cylinder is provided with thickened portions at positions above and below the first reinforcing ring, and the thickened portions are located close to the first reinforcing ring.

4. The suspended sleeve-type cluster chimney according to claim 1, characterized in that, The first reinforcing ring is provided in multiples and is arranged at intervals along the vertical direction. All of the first reinforcing rings are welded to the first connecting seat.

5. The suspended sleeve-type cluster chimney according to claim 4, characterized in that, A reinforcing plate extending vertically is provided between any two adjacent first reinforcing rings, and the upper and lower ends of the reinforcing plate are respectively fixedly connected to the first reinforcing rings on the upper and lower sides. The reinforcing plate is fixedly connected to the outer circumferential surface of the steel inner cylinder. Multiple reinforcing plates are provided and are evenly arranged along the circumference of the steel inner cylinder.

6. The suspended sleeve-type cluster chimney according to claim 1, characterized in that, The first reinforcing ring includes a first vertical plate and a first horizontal plate, both of which are circular. The first vertical plate and the first horizontal plate are coaxially arranged with the inner steel cylinder. The inner circumferential surface of the first vertical plate has a horizontal distance from the outer circumferential surface of the inner steel cylinder. There are two first horizontal plates, which are fixedly connected to the upper and lower end surfaces of the first vertical plate, respectively. The inner circumferential surface of the first horizontal plate is fixedly connected to the outer circumferential surface of the inner steel cylinder.

7. The suspended sleeve-type cluster chimney according to claim 6, characterized in that, The first reinforcing ring further includes a first stiffening rib extending in the vertical direction. The first stiffening rib is located between the two first horizontal plates. The first stiffening rib is fixedly connected to the outer circumferential surface of the steel inner cylinder, the first vertical plate, and the two first horizontal plates, respectively. Multiple first stiffening ribs are provided and evenly arranged along the circumference of the steel inner cylinder; and / or, The structure of the second reinforcing ring is the same as that of the first reinforcing ring.

8. The suspended sleeve-type cluster chimney according to claim 1, characterized in that, The support layer includes four first I-beams, all of which are arranged perpendicularly in pairs on the horizontal plane. Each first I-beam has multiple second stiffening ribs extending vertically at positions corresponding to the elastic pad; and / or, The elastic filler layer is one of a composite polytetrafluoroethylene layer, a fluororubber layer, and a silicone rubber layer; and / or, The elastic pad is a rubber gasket; and / or, The external enclosure structure is either a reinforced concrete shear wall structure or a steel tower structure.

9. The suspended sleeve-type cluster chimney according to claim 1, characterized in that, The anti-sway layer includes four second I-beams, all of which are arranged perpendicularly to each other on the horizontal plane. A third I-beam is provided at the position of the second connecting seat corresponding to the second I-beam. The second connecting seat includes two connecting frames that are horizontally symmetrical about the third I-beam, and there is a gap between the connecting frames and the third I-beam.

10. The suspended sleeve-type cluster chimney according to claim 9, characterized in that, The third I-beam is provided with an end cap plate at one end near the inner steel cylinder.

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