Smoke and air duct structure

Abstract

The utility model provides a smoke and air duct structure, which belongs to the technical field of flues, the smoke and air duct structure comprises a flue, a support structure and a plurality of pull rod components, the peripheral surface of the flue is provided with reinforcing ribs, and the extension path of the reinforcing ribs is parallel to the axial direction of the flue; the supporting structure is located on one side of the flue. The multiple pull rod assemblies are connected between the reinforcing ribs and the supporting structure and arranged in the axial direction of the flue. Compared with the traditional flue and air duct structure which is only supported by a steel frame, the flue and air duct structure provided by the utility model has the advantages that the horizontal limiting capability of the flue is improved, the effect of bearing outdoor wind load is achieved, thermal expansion generated under the high-temperature condition can be overcome, and the height of the steel frame can be properly reduced as the integral reinforcing effect is enhanced; and the cost is reduced, and the safety risk of operators is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue ducts, and particularly relates to a flue and air duct structure. Background Art

[0002] Before the flue gas is discharged from coal-fired power plants, steel mills, etc., it is necessary to desulfurize, denitrify and control dust in the flue gas. In the above treatment process, a flue and air duct system needs to be set up to transport the flue gas. For vertical flue ducts, it is usually necessary to set up relatively high steel frame structures and flue duct supports to bear the load and overcome the influence of thermal expansion. The construction intensity and cost of this structure are relatively high, and there are relatively high safety risks during the construction of the relatively high steel frame structure. Content of the Utility Model

[0003] An embodiment of the utility model provides a flue and air duct structure, aiming to solve the technical problems that the construction intensity and cost of the existing vertical flue duct, external steel frame, support, etc. are relatively high, and there are relatively high safety risks during the construction process.

[0004] To achieve the above object, the technical solution adopted by the utility model is: to provide a flue and air duct structure, including:

[0005] A flue, with reinforcing ribs provided on the outer peripheral surface, and the extending path of the reinforcing ribs is parallel to the axial direction of the flue;

[0006] A support structure, located on one side of the flue;

[0007] A plurality of tie rod assemblies, connected between the reinforcing ribs and the support structure, and the plurality of tie rod assemblies are arranged along the axial direction of the flue.

[0008] In a possible implementation manner, a first connecting member is provided on the reinforcing rib, and a second connecting member is provided on the support structure. The tie rod assembly includes:

[0009] A connecting rod;

[0010] Two third connecting members, respectively provided at both ends of the connecting rod, and one of the third connecting members is connected between the connecting rod and the first connecting member, and the other third connecting member is connected between the connecting rod and the second connecting member.

[0011] In a possible implementation manner, the connecting rod is perpendicular to the axial direction of the flue;

[0012] Alternatively, the connecting rod is obliquely arranged, and the included angle between the axial direction of the connecting rod and the axial direction of the flue is an acute angle or an obtuse angle.

[0013] In a possible implementation manner, the third connecting member includes:

[0014] The first adjusting rod has one end fixedly connected to the connecting rod, and a sliding groove is provided in the first adjusting rod;

[0015] The second adjusting rod is slidably connected to the sliding groove, and the protruding end of the second adjusting rod is connected to the first connecting member or the second connecting member;

[0016] The inserting rod is inserted and connected between the first adjusting rod and the second adjusting rod.

[0017] In a possible implementation manner, the first connecting member is a sliding sleeve slidably fitted on the reinforcing rib.

[0018] In a possible implementation manner, the second adjusting rod is hinged to the sliding sleeve or the second connecting member, and the hinge axis is perpendicular to the axial direction of the flue.

[0019] In a possible implementation manner, a plurality of partition plates are provided on the reinforcing rib at intervals along the axial direction of the flue, and one sliding sleeve is distributed between two adjacent partition plates.

[0020] In a possible implementation manner, both the first connecting member and the second connecting member are connecting plates, the connecting plates are fixedly connected to the reinforcing rib or the support structure, and the third connecting member includes:

[0021] A fixing plate is fixedly connected to the connecting rod, and a round hole or an oblong hole is provided on the fixing plate;

[0022] A bolt is fitted in the round hole or the oblong hole and is connected to the connecting plate.

[0023] In a possible implementation manner, the fixing plate is welded to the connecting rod.

[0024] In a possible implementation manner, a slot for snap-fitting with the fixing plate is provided on the connecting rod.

[0025] The solution shown in the embodiment of the present application, compared with the prior art, the support structure in the present application, that is, the steel frame arranged on the outer periphery of the vertical flue, by using the original steel frame, a tie rod assembly connected to the steel frame is arranged on the outer periphery of the flue, and a plurality of tie rod assemblies are arranged along the axial direction of the flue. By arranging the tie rod assembly, compared with the traditional support only using the steel frame, the horizontal limiting ability of the flue is improved, the function of bearing the outdoor wind load is achieved, and the thermal expansion generated in the high-temperature situation can also be overcome. Since the overall reinforcement effect is enhanced, the height of the steel frame can be appropriately reduced, and the cost is reduced while the safety risk of the operating personnel is also reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of a flue and duct structure provided by an embodiment of the present invention;

[0027] Figure 2 The A - direction view of the third connecting member between the support structure and the connecting rod adopted in an embodiment of the present utility model;

[0028] Figure 3 The A - direction view of the third connecting member between the reinforcing rib and the connecting rod adopted in an embodiment of the present utility model;

[0029] Figure 4 The front - view structural schematic diagram of the flue and air duct structure provided by another embodiment of the present utility model;

[0030] Figure 5 is Figure 4 The enlarged structural schematic diagram of part B in

[0031] Explanation of reference numerals:

[0032] 10 - Flue; 11 - Reinforcing rib; 12 - First connecting member; 13 - Partition board;

[0033] 20 - Support structure; 21 - Second connecting member;

[0034] 30 - Tie - rod assembly; 31 - Connecting rod; 311 - Slot; 32 - Third connecting member; 321 - First adjusting rod; 322 - Second adjusting rod; 323 - Plug rod; 324 - Fixed plate; 325 - Bolt. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when terms such as "first", "second" or "third" are used, they are for distinguishing different objects rather than for describing a specific order. In the claims, description and the above-mentioned drawings of the present utility model, the term "inner" refers to the direction towards the space through which the flue gas passes, and the term "outer" refers to the direction away from the space through which the flue gas passes; for the remaining orientation words, unless otherwise clearly defined, when terms such as "upper", "lower", "top", "bottom", "front", "rear", "center", "lateral", "longitudinal", "horizontal", "vertical", "left", "right", "clockwise", "counterclockwise", "high", "low" etc. are used to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0037] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when the terms "fixed connection" or "fixedly connected" are used, they should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, being integrated as a whole and being fixedly connected through other devices or elements.

[0038] In the claims, description and the above-mentioned drawings of the present utility model, when terms such as "comprising", "having" and their variants are used, the intention is "including but not limited to".

[0039] Please refer to Figures 1 to 5 together. Now, the flue gas duct structure provided by the present utility model will be described. The flue gas duct structure includes a flue 10, a support structure 20 and a plurality of tie rod assemblies 30. Reinforcing ribs 11 are provided on the outer peripheral surface of the flue 10, and the extending path of the reinforcing ribs 11 is parallel to the axial direction of the flue 10; the support structure 20 is located on one side of the flue 10; a plurality of tie rod assemblies 30 are connected between the reinforcing ribs 11 and the support structure 20, and the plurality of tie rod assemblies 30 are arranged along the axial direction of the flue 10.

[0040] The flue duct structure provided in this embodiment, compared with the prior art, the support structure 20 in the present application, that is, the steel frame arranged on the outer periphery of the vertical flue duct 10, by utilizing the original steel frame, a tie rod assembly 30 connected to the steel frame is arranged on the outer periphery of the flue duct 10, and a plurality of tie rod assemblies 30 are arranged along the axial direction of the flue duct 10. By arranging the tie rod assembly 30, compared with the traditional support only using the steel frame, the horizontal limiting ability of the flue duct 10 is improved, the function of bearing the outdoor wind load is achieved, and the thermal expansion generated in the case of high temperature can also be overcome. Since the overall reinforcement effect is enhanced, the height of the steel frame can be appropriately reduced, reducing the cost and also reducing the safety risk of the operators.

[0041] In some embodiments, a specific implementation manner of the above-mentioned tie rod assembly 30 can adopt the structure as Figures 1 to 5 shown. Refer to Figures 1 to 5 , a first connecting member 12 is provided on the reinforcing rib 11, a second connecting member 21 is provided on the support structure 20, the tie rod assembly 30 includes a connecting rod 31 and two third connecting members 32, the two third connecting members 32 are respectively arranged at both ends of the connecting rod 31, and one of the third connecting members 32 is connected between the connecting rod 31 and the first connecting member 12, and the other third connecting member 32 is connected between the connecting rod 31 and the second connecting member 21. By providing the first connecting member 12 on the reinforcing rib 11 and the second connecting member 21 on the support structure 20, the installation position of the tie rod assembly 30 can be determined through the positions of the first connecting member 12 and the second connecting member 21, which is convenient for installation and reduces the labor intensity; the third connecting member 32 in the tie rod assembly 30 is detachable from the first connecting member 12 or the second connecting member 21, which is convenient for replacing the tie rod assembly 30.

[0042] In some embodiments, an improved implementation manner of the above-mentioned tie rod assembly 30 can adopt the structure as Figure 1 and Figure 4 shown. Refer to Figure 1 and Figure 4 , the connecting rod 31 is perpendicular to the axial direction of the flue duct 10 (hereinafter referred to as the first type of connecting rod 31); alternatively, the connecting rod 31 is obliquely arranged, and the included angle between the axial direction of the connecting rod 31 and the axial direction of the flue duct 10 is an acute angle or an obtuse angle (hereinafter referred to as the second type of connecting rod 31). In the same flue duct structure, it can be all the first type of connecting rod 31, or all the second type of connecting rod 31, or a mixed arrangement of the first type of connecting rod 31 and the second type of connecting rod 31.

[0043] By arranging connecting rods 31 in various forms, different reinforcement requirements can be met, thereby improving the support effect on the flue duct 10 and extending the service life of the flue duct 10.

[0044] In some embodiments, a specific implementation manner of the above-mentioned third connecting member 32 can adopt the structure as Figure 5The structure shown. Refer to Figure 5 , the third connecting member 32 includes a first adjusting rod 321, a second adjusting rod 322 and a plug rod 323. One end of the first adjusting rod 321 is fixedly connected to the connecting rod 31, and a chute is provided in the first adjusting rod 321; the second adjusting rod 322 is slidably connected to the chute, and the extending end of the second adjusting rod 322 is connected to the first connecting member 12 or the second connecting member 21; the plug rod 323 is inserted and connected between the first adjusting rod 321 and the second adjusting rod 322. When setting the first type of connecting rod 31 and the second type of connecting rod 31, the overall lengths of the required tie rod assemblies 30 are different. The third connecting member 32 in this embodiment can adjust the second adjusting rod 322 by sliding, and after adjustment, it is fixed by the plug rod 323, so that the tie rod assembly 30 can be adapted to different installation postures, and the adjustment is convenient.

[0045] In some embodiments, a specific implementation manner of the above-mentioned first connecting member 12 can adopt as Figure 4 The structure shown. Refer to Figure 4 , the first connecting member 12 is a sliding sleeve slidably fitted on the reinforcing rib 11. When installing the tie rod assembly 30, the tie rod assembly 30 can be first connected to the sliding sleeve, then the sliding sleeve is slid to a suitable position on the reinforcing rib 11, and finally the tie rod assembly 30 is connected to the support structure 20, so that the position of the tie rod assembly 30 can be fixed. This structure is convenient for installation, and the position of the tie rod assembly 30 can be adjusted arbitrarily before the tie rod assembly 30 is connected to the support structure 20, and the operation is more flexible.

[0046] Specifically, the second adjusting rod 322 is hinged to the sliding sleeve or the second connecting member 21, and the hinge axis is perpendicular to the axial direction of the flue 10. That is, the second adjusting rod 322 connected to the sliding sleeve is hinged to the sliding sleeve, and the second adjusting rod 322 connected to the second connecting member 21 is hinged to the second connecting member 21. That is, the tie rod assembly 30 is respectively hinged to the first connecting member 12 and the second connecting member 21, and the length of the second adjusting rod 322 can be adjusted during installation, combined with the above hinge relationship, to adapt to different installation angles of the tie rod assembly 30.

[0047] In some embodiments, an improved implementation manner of the above-mentioned reinforcing rib 11 can adopt as Figure 4 The structure shown. Refer to Figure 4 , a plurality of partitions 13 are provided on the reinforcing rib 11 at intervals along the axial direction of the flue 10, and a sliding sleeve is distributed between two adjacent partitions 13. One tie rod assembly 30 is correspondingly installed on one sliding sleeve. By providing a plurality of partitions 13, the length that each tie rod assembly 30 can adjust along the axial direction of the flue 10 on the reinforcing rib 11 can be certain, ensuring that there is a tie rod assembly 30 every certain length, and the reinforcing effect on the flue 10 is better.

[0048] In some embodiments, a variant implementation of the above-mentioned third connecting member 32 may adopt the structure as shown in Figures 2 to 3 . Refer to Figures 2 to 3 . The first connecting member 12 and the second connecting member 21 are both connecting plates. The connecting plates are fixedly connected to the reinforcing rib 11 or the support structure 20. The third connecting member 32 includes a fixing plate 324 and a bolt 325. The fixing plate 324 is fixedly connected to the connecting rod 31. The fixing plate 324 is provided with a circular hole or an oblong hole; the bolt 325 is fitted in the circular hole or the oblong hole and is connected to the connecting plate. The connecting plate is fixedly connected to both the reinforcing rib 11 and the support structure 20. When the fixing plate 324 is installed on the connecting plate, the plate surface of the fixing plate 324 can be attached to the plate surface of the connecting plate, so that the installed tie rod assembly 30 is more stable. After installation, it is fixed by the bolt 325. One of the fixing plates 324 at both ends of the connecting rod 31 can be provided with a circular hole, and the other can be provided with an oblong hole. Then, the bolt 325 in the oblong hole can move along the length direction of the oblong hole to realize fine adjustment of the overall length of the tie rod assembly 30, which is convenient to use.

[0049] Specifically, the fixing plate 324 is welded to the connecting rod 31, or the connecting rod 31 is provided with a slot 311 that is snap-fitted with the fixing plate 324.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A smoke and air duct structure, characterized in that: include: The flue has a reinforcing rib on its outer peripheral surface, and the extending path of the reinforcing rib is parallel to the axial direction of the flue; A supporting structure located on one side of the flue; A plurality of tie rod assemblies are connected between the reinforcing rib and the supporting structure, and the plurality of tie rod assemblies are arranged along the axial direction of the flue.

2. The smoke and air duct structure according to claim 1, characterized in that: The reinforcing rib is provided with a first connecting member, the supporting structure is provided with a second connecting member, and the pull rod assembly comprises: Connecting rod; Two third connecting members are respectively arranged at two ends of the connecting rod, wherein one of the third connecting members is connected between the connecting rod and the first connecting member, and the other of the third connecting members is connected between the connecting rod and the second connecting member.

3. The smoke and air duct structure according to claim 2, characterized in that: The connecting rod is perpendicular to the axial direction of the flue; Alternatively, the connecting rod is arranged obliquely, and the angle between the axial direction of the connecting rod and the axial direction of the flue is an acute angle or an obtuse angle.

4. The smoke and air duct structure according to claim 2, characterized in that: The third connecting member comprises: A first adjusting rod, one end of which is fixedly connected to the connecting rod, and a sliding groove is provided in the first adjusting rod; A second adjusting rod is slidably connected to the slide slot, and an extended end of the second adjusting rod is connected to the first connecting member or the second connecting member; The plug rod is plugged and connected between the first adjusting rod and the second adjusting rod.

5. The smoke and air duct structure according to claim 4, characterized in that: The first connecting member is a sliding sleeve that is slidably matched on the reinforcing rib.

6. The smoke and air duct structure according to claim 5, characterized in that: The second adjusting rod is hinged to the sliding sleeve or the second connecting member, and the hinge axis is perpendicular to the axial direction of the flue.

7. The smoke and air duct structure according to claim 5, characterized in that: The reinforcing rib is provided with a plurality of partitions spaced apart along the axial direction of the flue, and one sliding sleeve is distributed between two adjacent partitions.

8. The smoke and air duct structure according to claim 2, characterized in that: The first connecting member and the second connecting member are both connecting plates, the connecting plates are fixedly connected to the reinforcing rib or the supporting structure, and the third connecting member includes: A fixing plate, fixedly connected to the connecting rod, wherein a round hole or an oblong hole is provided on the fixing plate; The bolt is fitted into the circular hole or the oblong hole and connected to the connecting plate.

9. The smoke and air duct structure according to claim 8, characterized in that: The fixing plate is connected to the connecting rod by welding.

10. The smoke and air duct structure according to claim 8, characterized in that: The connecting rod is provided with a slot which is snap-fitted with the fixing plate.

Images