Large-span flexible flue system
By suspending the flexible flue using hoisting and traction components, the problems of traditional flue systems being heavy, having a small span, and being difficult to clean due to ash accumulation are solved, achieving efficient space utilization and ash removal effect.
Patent Information
- Application Number
- CN202520339483.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional flue systems are heavy, have a small span, and are difficult to clean due to ash accumulation, which affects the spatial layout and service life of the plant.
The system employs hoisting and traction components, suspending the flexible flue via cables. This allows the flue to extend and retract in the front-to-back direction, shifting the location of accumulated ash and facilitating cleaning.
It reduces the floor space occupied by the flue system, improves space utilization, reduces the difficulty of cleaning, and extends the service life of the flue system.
Smart Images
Figure CN223677173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of flue gas transportation, and particularly relates to a large-span flexible flue system. BACKGROUND
[0002] The flue system is used for discharging waste gas after combustion and is applied to a production system generating flue gas in a steel plant, a boiler room and the like.
[0003] The traditional flue system is mostly of a steel plate structure and is formed by adopting a steel plate welding forming process. Due to the excessively high material density, the flue is heavy. In order to improve construction safety, a dense steel support group needs to be arranged, so that the occupied area of the flue system is increased, and the plant area layout is affected. Due to the constraints of the yield strength of steel and welding deformation, the maximum allowable span of a single span is only 8-12 meters. The overall span of the flue system is small, which seriously restricts the comprehensive arrangement of process pipelines. The dust accumulation area formed by the right-angle bend and the straight pipe section accounts for a high proportion. The mechanical vibration and dust removal device has a dust removal blind area, so that the dust removal effect of the flue system is low. The increased dust accumulation causes the local corrosion rate of the flue system to increase, the service life of the flue system is shortened, and the maintenance cost is increased. SUMMARY
[0004] The utility model embodiment provides a kind of large-span flexible flue system, to solve the technical problems of the traditional flue structure in prior art, which is heavy, small span, difficult to clean dust, affect the rational layout of plant space and the service life of flue.
[0005] To achieve the above object, the utility model adopts the technical scheme that provides a kind of large-span flexible flue system, comprising:
[0006] The hoisting assembly includes a track and multiple cables. The track extends in the horizontal direction, and the long axis direction of the track is defined as the front-rear direction. The top end of each cable is connected to the track, and the multiple cables are arranged in the front-rear direction.
[0007] The flexible flue has an axis parallel to the front-rear direction, and the bottom end of the cable is connected to the outer periphery of the flexible flue.
[0008] The traction assembly is arranged at the rear end of the track and is in transmission connection with the cable to drive the movement of the cable.
[0009] In one possible implementation, the track is fixed by a cable anchor arranged at the front end of the track. The cable anchor is rotationally connected with a traction wheel. The rotation axis of the traction wheel is perpendicular to the vertical direction and also perpendicular to the front-rear direction. The top of the cable is provided with a pulley, and the rotation axis of the pulley is parallel to the rotation axis of the traction wheel.
[0010] The hoisting assembly further comprises a traction rope, one end of the traction rope is in sliding connection with the traction assembly, the other end of the traction rope passes around the traction wheel and is connected with the terminal sash cord, and the pulley is in sliding fit with the traction rope.
[0011] In a possible implementation, the hoisting assembly further comprises a plurality of fixed hangers, bottom ends of the fixed hangers are connected with the flexible flue, and top ends of the fixed hangers are connected with corresponding sash cords.
[0012] In a possible implementation, the flexible flue comprises a plurality of flue sections connected in sequence in the front-rear direction, and each flue section is in a lantern type structure.
[0013] In a possible implementation, the large-span flexible flue system further comprises a shaping assembly, the shaping assembly comprises a plurality of support rings, the support rings are arranged in the front-rear direction at intervals on the outer periphery of the flexible flue, and the support rings are connected with the sash cords.
[0014] In a possible implementation, the outer periphery of the support ring is provided with an ear, and the ear is connected with the sash cord.
[0015] In a possible implementation, the outer periphery of each support ring is provided with three ears in the self-circumferential direction, the track is provided with three corresponding ears, the three tracks are parallel to each other, and the ears are respectively connected with bottom ends of the corresponding sash cords.
[0016] In a possible implementation, the traction assembly comprises a stretching drive and a contraction drive, an output end of the stretching drive is connected with one end of the traction rope, and the contraction drive is connected with the sash cord at the other end.
[0017] In a possible implementation, the large-span flexible flue system further comprises an inclination assembly, the inclination assembly comprises a turnover rod, a long axis of the turnover rod is perpendicular to the front-rear direction, a turnover axis of the turnover rod is perpendicular to the vertical direction, one end of the turnover rod is in rotational connection with the support ring, and the turnover rod can rotate along the self-axis to drive the support ring to rotate along the turnover axis of the turnover rod.
[0018] In a possible implementation, the large-span flexible flue system further comprises an auxiliary device, the auxiliary device comprises a jacking oil cylinder, the jacking oil cylinder is arranged at the bottom of the flexible flue, a top end of the jacking oil cylinder is in abutment with the flexible flue to cooperate with the turnover rod to incline the flexible flue.
[0019] Compared with the prior art, the large-span flexible flue system changes the original steel structure support into hoisting support, hoists and carries the flexible flue through the inhaul cable of the hoisting and carrying assembly, multiple inhaul cables support the flexible flue together, the inhaul cable at the tail end is in transmission connection with the traction assembly, the hoisting of the flexible flue reduces the floor space of the flue system, facilitates the space planning of the factory building, and improves the space utilization rate; when the ash deposition in the flexible flue reaches a certain degree, the inhaul cable is moved through the traction assembly, the flexible flue is telescopic in the front-rear direction, ash deposition is conveniently removed, the flexible flue is contracted or stretched under the action of the inhaul cable, the position of the ash deposition in the flexible flue is adjusted, the ash deposition is conveniently cleaned up, and the difficulty of ash removal is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to make the technical problems to be solved by the utility model, the technical scheme and the beneficial effects more clearly understood, the following will be further described in detail in combination with the drawings and the embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0021] Figure 1 The utility model provides a large-span flexible flue system's main view structure schematic diagram for an embodiment of the utility model;
[0022] Figure 2 For Figure 1 The assembly schematic view of the traction assembly and the hoisting and carrying assembly used in the middle.
[0023] BRIEF DESCRIPTION OF DRAWINGS
[0024] 1, hoisting and carrying assembly;11, track;12, inhaul cable;13, traction wheel;14, pulley;15, traction rope;16, fixed boom;
[0025] 2, flexible flue;
[0026] 3, traction assembly;31, stretching drive part;32, contraction drive part;
[0027] 4, shaping assembly;41, support ring;42, lifting lug;
[0028] 5, turnover rod;
[0029] 6, auxiliary device. DETAILED DESCRIPTION
[0030] In order to make the technical problems to be solved by the utility model, the technical scheme and the beneficial effects more clearly understood, the following will be further described in detail in combination with the drawings and the embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting on the application or its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.
[0032] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. The orientation words "inner" and "outer" refer to the inner and outer of the contour of each component itself.
[0033] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] Please refer to Figures 1 to 2 , now the large-span flexible flue system provided by the utility model will be described. A large-span flexible flue system, characterized in that, comprising hoisting assembly 1, flexible flue 2 and traction assembly 3. Hoisting assembly 1 comprises track 11 and multiple cables 12, track 11 extends along the horizontal direction, and the long axis direction of track 11 is defined as the front-back direction, and the top end of each cable 12 is connected to track 11 respectively, and multiple cables 12 are arranged along the front-back direction at intervals; the axis of flexible flue 2 is parallel to the front-back direction, and the bottom end of cable 12 is connected to the outer periphery of flexible flue 2; traction assembly 3 is arranged at the rear end of track 11 and is in transmission connection with cable 12 to drive the movement of cable 12.
[0035] It should be noted that the solid arrows in the drawings Figure 1 indicate the front-back direction.
[0036] It should be noted that the flexible flue 2 can be stretched or contracted along its own axis, and the flexible flue 2 can be made of pve material, pe material or ptfe material.
[0037] In a specific implementation, the plurality of cables 12 arranged in front of and behind the track 11 form a distributed suspension system, which can realize uniform distribution of the flexible flue load. The flexible connection of the cable 12 and the rigid support of the track 11 form a "rigid-flexible coupling" structure, which enhances the wind vibration resistance and anti-shaking ability of the system. The cooperative design of the flexible flue 2 and the cable 12 allows the flexible flue to freely stretch and contract in the front-rear direction, effectively absorbing the thermal expansion and contraction deformation. The flexible flue 2 is suspended by the cable 12 instead of the traditional support system, breaking the span limit and avoiding the influence of ground obstacles, and is particularly suitable for complex plant layout.
[0038] The large-span flexible flue system provided in the embodiment changes the original steel structure support to lifting support. The flexible flue 2 is lifted by the cable 12 of the lifting assembly 1, the plurality of cables 12 jointly support the flexible flue 2, the cable 12 at the end is in transmission connection with the traction assembly 3, the flexible flue 2 is lifted to reduce the floor area occupied by the flue system, facilitate the space planning of the plant, and improve the space utilization rate. When the accumulated ash in the flexible flue 2 reaches a certain degree, the traction assembly 3 drives the cable 12 to move, so that the flexible flue 2 stretches or contracts in the front-rear direction, facilitating ash cleaning. The flexible flue 2 is contracted or stretched under the action of the cable 12 to adjust the position of the accumulated ash in the flexible flue 2, so that the accumulated ash is gathered for easy cleaning, and the ash cleaning difficulty is reduced.
[0039] In some embodiments, referring to Figure 1 The track 11 is fixed by a cable anchor, the cable anchor (not labeled in the figure) is arranged at the front end of the track 11, the cable anchor is in rotational connection with a traction wheel 13, the rotational axis of the traction wheel 13 is perpendicular to the vertical direction and also perpendicular to the front-rear direction, the top of the cable 12 is provided with a pulley 14, the rotational axis of the pulley 14 is parallel to the rotational axis of the traction wheel 13; the lifting assembly 1 further includes a traction rope 15, one end of the traction rope 15 is in sliding connection with the traction assembly 3, the other end of the traction rope 15 passes through the traction wheel 13 and is connected with the cable 12 at the end, and the pulley 14 is in sliding cooperation with the traction rope 15. In the embodiment, the traction rope 15 drives the movement of the cable 12 at the end, and the movement of the cable 12 drives the contraction of the flexible flue 2, facilitating ash cleaning, increasing the use flexibility, and reducing the wear of the traction rope 15 through the arrangement of the pulley 14 and the traction wheel 13, prolonging the service life of the lifting assembly 1.
[0040] In some embodiments, referring to Figure 2The hoisting assembly 1 further comprises a plurality of fixed hangers 16, the bottom end of the fixed hanger 16 is connected to the flexible flue 2, and the top end of the fixed hanger 16 is connected to the corresponding cable 12. The fixed hanger 16 itself has a certain strength, which can reduce the sway and increase the support stability during the hoisting and supporting of the flexible flue 2.
[0041] In specific implementation, the cable 12 is short in length, and mainly connects the flexible flue 2 and the traction rope 15 through the fixed hanger 16.
[0042] In some embodiments, the flexible flue 2 comprises a plurality of flue sections connected in sequence in the front-rear direction, and each flue section is in a lantern shape. The plurality of flue sections are respectively telescopic in the front-rear direction, and the lantern shape can guide the bending position of the flue section, so that the telescopic direction of the flexible flue 2 is controllable, and the telescopic effect of the flexible flue 2 is ensured.
[0043] In some embodiments, referring to Figure 1 and Figure 2 , the large-span flexible flue system further comprises a shaping assembly 4, the shaping assembly 4 comprises a plurality of support rings 41, the plurality of support rings 41 are arranged in the front-rear direction and are spaced apart on the outer periphery of the flexible flue 2, and the support ring 41 is connected to the cable 12. The flexible flue 2 is a flexible structure, the support ring 41 is a rigid structure, and the plurality of support rings 41 in the shaping assembly 4 respectively support the flexible flue 2 to shape the flexible flue 2, so that the flexible flue 2 stably maintains a circular cross section, which is beneficial to the flow and removal of flue gas.
[0044] In some embodiments, referring to Figure 2 , the outer periphery of the support ring 41 is provided with a lifting lug 42, and the lifting lug 42 is connected to the cable 12. The support ring 41 is a rigid structure, and the lifting lug 42 is arranged for connection. The support ring 41 is not easy to deform, which can avoid the change of the shape of the flexible flue 2 during hoisting, and ensure the flue gas treatment effect of the flexible flue. The lifting lug 42 facilitates the connection of the support ring 41 and the cable 12, and reduces the connection difficulty.
[0045] In some embodiments, referring to Figure 2 , the outer periphery of each support ring 41 is provided with three lifting lugs 42, the track 11 is provided with three corresponding lifting lugs 42, the three tracks 11 are parallel to each other, and the lifting lug 42 is connected to the bottom end of the corresponding cable 12. In order to improve the support stability and support safety, the lifting lug 42 is arranged at the middle and top of the two sides of the support ring 41, respectively, and three hoisting assemblies 1 are used for common support to disperse the pressure borne by a single cable 12.
[0046] In specific implementation, the three traction ropes 15 are traction cables and fixed cables, the traction cables are arranged between the two fixed cables, the bottom end of the fixed cable is connected with the fixed hanger 16, the fixed hanger 16 is connected with the corresponding hanger lug 42, and the fixed hanger 16 can drive the flexible flue 2 to contract when the cable 12 moves, thereby reducing the deformation of the cable 12.
[0047] In some embodiments, referring to Figure 1 , the traction assembly 3 includes a stretching driving member 31 and a contracting driving member 32, the output end of the stretching driving member 31 is connected with one end of the traction rope 15, and the contracting driving member 32 is connected with the cable 12 at the other end. The stretching driving member 31 and the contracting driving member 32 respectively drive the cable 12 to move, so that the flexible flue 2 can be stretched or contracted, thereby realizing adaptive adjustment and soot cleaning operation.
[0048] In specific implementation, the stretching driving member 31 and the contracting driving member 32 are both in transmission connection with the traction rope 15, the stretching driving member 31 is connected with the cable 12 through a rope, thereby driving the traction rope 15 to move, and the stretching driving member 31 drives the cable 12 at the end to move, so that the flexible flue 2 is stretched; the contracting driving member 32 is directly connected with the traction rope 15, thereby driving the traction rope 15 to move, and the traction rope 15 drives the cable 12 at the end to move, so that the flexible flue 2 is contracted.
[0049] In some embodiments, referring to Figure 2 , the large-span flexible flue system further includes an inclination assembly, the inclination assembly includes a turnover rod 5, the long axis of the turnover rod 5 is perpendicular to the front-rear direction, the turnover axis of the turnover rod 5 is perpendicular to the vertical direction, one end of the turnover rod 5 is rotationally connected with the support ring 41, and the turnover rod 5 can rotate along the axis thereof, so as to drive the support ring 41 to rotate along the turnover axis of the turnover rod 5. The turnover rod 5 of the inclination assembly can make the flexible flue 2 rotate around the turnover rod 5, thereby facilitating soot cleaning.
[0050] In some embodiments, referring to Figure 1 , the large-span flexible flue system further includes an auxiliary device 6, the auxiliary device 6 includes a jacking oil cylinder, the jacking oil cylinder is arranged at the bottom of the flexible flue 2, the top end of the jacking oil cylinder is in abutment with the flexible flue 2, so as to cooperate with the turnover rod 5 to incline the flexible flue 2. The auxiliary device 6 and the turnover rod 5 cooperate to support the flexible flue 2 from top to bottom, thereby facilitating soot cleaning; and the jacking oil cylinder can support the flexible flue 2 at the bottom, thereby increasing the inclination stability of the flexible flue 2 and facilitating soot cleaning.
[0051] The general soot cleaning process of the large-span flexible flue system provided in the embodiment is as follows:
[0052] The flexible pipe 2 is fixed with the support rod 41 of the shaping assembly 4, is connected with the cable 12 through the fixed hanger 16, and is pulled back by the traction rope 15 to move the fixed hanger 16, the flexible pipe 2 is folded and contracted, the dust in the flexible pipe 2 is gathered, the dust cleaning system works, the cross section of the flexible pipe 2 rotates around the turnover rod 5, and the dust cleaning is completed, a cycle is completed, the third section is completed, and the dust cleaning of the whole flexible pipe 2 is completed.
[0053] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A large span flexible flue system, characterized by, The utility model relates to a large-span flexible flue system, comprising: a hoisting assembly, comprising a track and a plurality of cables, the track extending in a horizontal direction, the long axis direction of the track being defined as a front-rear direction, the top end of each cable being connected to the track, and the plurality of cables being arranged in the front-rear direction at intervals; a flexible flue, the axis of the flue being parallel to the front-rear direction, and the bottom end of the cable being connected to the outer periphery of the flexible flue; and a traction assembly provided at the rear end of the track and in driving connection with the cable to move the cable. The track is fixed by a cable anchor provided at the front end of the track, the cable anchor being in rotational connection with a traction wheel, the rotational axis of the traction wheel being perpendicular to the vertical direction and also perpendicular to the front-rear direction, the top of the cable being provided with a pulley, the rotational axis of the pulley being parallel to the rotational axis of the traction wheel.
2. The long-span flexible flue system as claimed in claim 1, wherein, The hoisting assembly further comprises a traction rope, one end of the traction rope being in sliding connection with the traction assembly, the other end of the traction rope passing around the traction wheel and being connected to the cable at the end, the pulley being in sliding cooperation with the traction rope. The hoisting assembly further comprises a plurality of fixed hangers, the bottom end of the fixed hanger being connected to the flexible flue, and the top end of the fixed hanger being connected to the corresponding cable.
3. The long-span flexible flue system as claimed in claim 1, wherein, The flexible flue comprises a plurality of flue sections connected in sequence in the front-rear direction, each flue section being in a lantern type structure.
4. The long-span flexible flue system as claimed in claim 1, wherein, The large-span flexible flue system further comprises a shaping assembly, the shaping assembly comprising a plurality of support rings arranged at intervals in the front-rear direction at the outer periphery of the flexible flue, the support ring being connected to the cable.
5. The long-span flexible flue system as claimed in claim 1, wherein, The outer periphery of the support ring is provided with an ear, the ear being connected to the cable.
6. The long-span flexible flue system as claimed in claim 5, wherein, The outer periphery of each support ring is provided with three ears in the circumferential direction thereof, the track being provided with three ears corresponding to the ears, the three tracks being parallel to each other, and the ears being connected to the bottom end of the corresponding cable.
7. The long-span flexible flue system as claimed in claim 6, wherein, The traction assembly comprises a stretching drive and a contraction drive, the output end of the stretching drive being connected to one end of the traction rope, and the contraction drive being connected to the cable at the other end.
8. The long-span flexible flue system as claimed in claim 2, wherein, The large-span flexible flue system further comprises an inclination assembly, the inclination assembly comprising a turnover rod, the long axis of the turnover rod being perpendicular to the front-rear direction, and the turnover axis of the turnover rod being perpendicular to the vertical direction, one end of the turnover rod being in rotational connection with the support ring, and the turnover rod being able to rotate along the axis thereof to drive the support ring to rotate along the turnover axis of the turnover rod.
9. The long-span flexible flue system as claimed in claim 5, wherein, The large-span flexible flue system further comprises an auxiliary device, the auxiliary device comprising a jacking oil cylinder, the jacking oil cylinder being provided at the bottom of the flexible flue, the top end of the jacking oil cylinder being in abutment with the flexible flue to cooperate with the turnover rod to incline the flexible flue.
10. The long-span flexible flue system as claimed in claim 9, wherein,