Flue suction adjusting device

Abstract

The utility model discloses a flue suction adjusting device, which relates to the field of smoke exhaust pipelines and comprises a smoke exhaust pipeline, a first butt-joint plate and a second butt-joint plate which are symmetrically distributed along the cross section of the smoke exhaust pipeline are fixed on the inner wall of the smoke exhaust pipeline, and a rotatable turning plate is arranged between the first butt-joint plate and the second butt-joint plate. The first butt-joint plate and the second butt-joint plate are each of an arch-shaped structure, and the upper end and the lower end of the turning plate correspond to the straight line edges of the first butt-joint plate and the second butt-joint plate respectively. The included angle space formed by the turning plate, the first butt-joint plate and the second butt-joint plate can allow flue gas to quickly pass through, meanwhile, the impact force of the flue gas can be reduced, the flue gas is effectively prevented from strongly washing the pipe wall of the smoke exhaust pipeline after the direction of the flue gas is changed by the included angle space, and the impact damage of the flue gas to the pipe wall is reduced. And impurities doped in the smoke can be effectively prevented from being retained on the pipe wall of the smoke exhaust pipeline, dirt accumulation is effectively reduced, and the smoke exhaust pipeline is protected.

Description

Technical Field

[0001] The utility model relates to the field of smoke exhaust pipes, and particularly relates to a flue suction regulating device. Background Art

[0002] A coke oven is used for coking. The function of the flue system therein should be to discharge the waste gas generated by combustion, control the combustion process, and keep the temperature in the furnace stable. The regulation of flue suction may be related to aspects such as combustion efficiency, temperature control, and environmental protection emissions. The regulation of coke oven flue suction is a key link to ensure the efficient and environmentally friendly operation of the coke oven.

[0003] Most of the existing mechanical devices applied to the work of flue suction regulation achieve the regulation of the internal suction of the flue through a flap structure. This regulation method changes the air flow resistance by adjusting the opening and closing angle of the flap inside the flue, thereby affecting the suction. When the flap is opened wider, the resistance decreases and the suction decreases; conversely, the suction increases.

[0004] However, during the operation of the circular flap structure, when the baffle is initially opened, the air flow can only pass through the gap formed between the baffle and the pipe wall. The inclined baffle is likely to generate resistance to the local air flow. Especially when the baffle is not fully opened, the air flow direction is prone to deviation, scouring the pipe wall, resulting in the phenomenon of wear on the inner wall of the pipe. During the process of the air flow strongly scouring the pipe wall, the impurities doped therein are likely to impact the surface of the pipe wall. The impurities impact the pipe wall along with the air flow, which is likely to cause impact damage to the air flow and also likely to cause adhesion phenomena, affecting the service life of the pipe. Summary of the Utility Model

[0005] In view of the above problems, the present application provides a flue suction regulating device.

[0006] To achieve the above object, the present application provides the following technical solution: A flue suction regulating device includes a smoke exhaust pipe. First butt plates and second butt plates symmetrically distributed along the cross-section of the smoke exhaust pipe are fixed on the inner wall of the smoke exhaust pipe. A rotatable flap is provided between the first butt plate and the second butt plate, and both the first butt plate and the second butt plate are in an arc-shaped structure. The upper and lower ends of the flap respectively correspond to the straight edges of the first butt plate and the second butt plate.

[0007] It further includes a first transverse gasket and a second transverse gasket respectively fixed on the surfaces of the second butt plate and the first butt plate. The first transverse gasket and the second transverse gasket respectively abut against the bottom end and the top end of the flap, and the first transverse gasket and the second transverse gasket are respectively located on both sides of the flap.

[0008] On one side of the flap facing the transverse gasket two, there are movable arc gaskets one and two. The arc gaskets one and two respectively abut against two arc edges of the flap. When the arc gaskets one and two move from one side of the arc edge of the flap to one side of the first docking plate and the second docking plate respectively, there is a space for the flap to rotate and open.

[0009] Furthermore, outside the smoke exhaust pipe, there is a first driving motor for controlling the rotation of the flap and a first support frame for carrying the first driving motor. The main shaft of the first driving motor penetrates through the smoke exhaust pipe and is connected to the center of the arc edge of the flap.

[0010] Furthermore, extension plates are fixed to the sides of the transverse gaskets one and two away from the flap. Removable linkage supports are provided at the ends of the extension plates. The two linkage supports are symmetrically distributed inside the smoke exhaust pipe, and the two linkage supports are both connected to the same bevel gear ring through removable positioning plates. When the bevel gear ring rotates, the two positioning plates, linkage supports, extension plates, transverse gaskets one and two all rotate around the central axis of the smoke exhaust pipe until the arc gaskets one and two deviate from the arc edges of the flap.

[0011] Furthermore, a bevel gear meshing with the bevel gear ring and perpendicular to it is provided. Outside the smoke exhaust pipe, there is a second driving motor for driving the bevel gear to rotate and a second support frame for carrying the second driving motor. The main shaft of the second driving motor penetrates through the smoke exhaust pipe and is connected to the central axis position of the bevel gear.

[0012] Furthermore, a guide ring is fixedly connected to the inner wall of the smoke exhaust pipe. The linkage supports are all in a C-shaped structure, and tracks adapted to the guide ring are provided on the sides of the linkage supports facing the inner wall of the smoke exhaust pipe.

[0013] Furthermore, both ends of the two linkage supports protrude towards the central axis position of the smoke exhaust pipe to form support feet. The same positioning rod passes through two support feet on the same horizontal plane. The parallel positioning rods are opposite to the gap positions at the ends of the two linkage supports.

[0014] Both ends of the positioning rod are in threaded parts, and two movable threaded limit rings are provided on the threaded parts. When the linkage support is docked with the guide ring through the track provided on its side, the support foot is sleeved outside the threaded part, and the two threaded limit rings respectively abut against both sides of the support foot.

[0015] In summary, the technical effects and advantages of the present utility model:

[0016] 1. The angle space formed by the flap, the first docking plate and the second docking plate in the utility model can allow smoke to flow through quickly. At the same time, it can also reduce the impact force of smoke, effectively preventing smoke from strongly scouring the pipe wall of the smoke exhaust pipe after the smoke is changed in direction by the angle space, reducing the impact damage of smoke on the pipe wall. It can also effectively prevent impurities mixed in the smoke from being retained on the pipe wall of the smoke exhaust pipe, effectively reduce dirt accumulation, and have a protective effect on the smoke exhaust pipe.

[0017] 2. The utility model is based on the combination of transverse sealing pad 1, transverse sealing pad 2, arc sealing pad 1 and arc sealing pad 2, which can fully seal the flap in the closed state, ensuring the airtightness inside the smoke exhaust duct. The positions of arc sealing pad 1 and arc sealing pad 2 can be flexibly adjusted to adapt to different operating states of the flap, ensuring the stable opening of the flap, and also preventing the flap from rubbing against arc sealing pad 1 and arc sealing pad 2 during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0021] Figure 3 This is a schematic diagram of the structure of the smoke exhaust duct after being cut open.

[0022] Figure 4 It is a structural schematic diagram of the utility model when the arc-shaped sealing gasket 1 and the arc-shaped sealing gasket 2 rotate away from the flap.

[0023] Figure 5 It is a structural schematic diagram of the utility model when the arc-shaped sealing gasket 1 and the arc-shaped sealing gasket 2 are rotated away from the flap and the flange is opened.

[0024] Figure 6 It is a schematic diagram of the connection structure of two linkage supports of the utility model.

[0025] Figure 7 For this utility model Figure 6 A schematic diagram of the enlarged structure of part A.

[0026] In the figure: 1. Smoke exhaust pipe; 101. First docking plate; 102. Second docking plate; 103. First support frame; 104. Second support frame; 105. Guide ring; 2. Flap; 201. First driving motor; 3. First transverse gasket; 4. Second transverse gasket; 5. First arc gasket; 6. Second arc gasket; 7. Extension plate; 8. Linkage support; 801. Positioning rod; 802. Threaded part; 803. Threaded limit ring; 9. Positioning plate; 10. Bevel gear ring; 11. Bevel gear; 1101. Second driving motor. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1: Refer to Figures 1-3 A flue suction adjustment device as shown, including a smoke exhaust pipe 1. The inner wall of the smoke exhaust pipe 1 is fixed with a first docking plate 101 and a second docking plate 102 symmetrically distributed along its cross-section. A rotatable flap 2 is arranged between the first docking plate 101 and the second docking plate 102. During the actual use of this flue suction adjustment device, by adjusting the opening and closing angle of the flap 2, the flue resistance can be changed, thereby accurately controlling the flow rate and suction of the flue gas.

[0029] Both the first docking plate 101 and the second docking plate 102 are in an arc-shaped structure, and the upper and lower ends of the flap 2 respectively correspond to the straight edges of the first docking plate 101 and the second docking plate 102. Therefore, when the flap 2 rotates and opens, its upper and lower ends can quickly move away from the straight edges of the first docking plate 101 and the second docking plate 102. At the same time, when the flue gas passes through the included angle space, its airflow direction is easily changed. Based on the combined setting of the first docking plate 101 and the second docking plate 102, the contact surface with the flue gas can be enlarged, the impact force of the flue gas can be reduced, and the flue gas can be effectively prevented from strongly scouring the pipe wall of the smoke exhaust pipe 1 after the airflow direction is changed by the included angle space, reducing the impact damage of the flue gas on the pipe wall.

[0030] At the same time, since a part of the flue gas whose airflow direction is changed contacts the first docking plate 101 and the second docking plate 102, the impurities doped in the flue gas can be effectively prevented from staying on the pipe wall of the smoke exhaust pipe 1, effectively reducing the accumulation of dirt and having a protective effect on the smoke exhaust pipe.

[0031] The utility model further includes a first transverse sealing gasket 3 and a second transverse sealing gasket 4 which are respectively fixed on the surfaces of the second docking plate 102 and the first docking plate 101. When the flap 2 is in the closed state, the first transverse sealing gasket 3 and the second transverse sealing gasket 4 respectively abut against the bottom end and the top end of the flap 2, and the first transverse sealing gasket 3 and the second transverse sealing gasket 4 are respectively located on both sides of the flap 2. The first transverse sealing gasket 3 and the second transverse sealing gasket 4 can maintain the sealing performance when the end of the flap 2 is docked with the first docking plate 101 and the second docking plate 102, effectively avoiding the leakage of flue gas from the small gaps formed between the end of the flap 2 and the first docking plate 101 and the second docking plate 102, and maintaining the sealing performance of the flap 2 in the closed state.

[0032] When the flap 2 is in the rotating state, the flap 2 always rotates in the same direction, and its upper and lower ends respectively rotate away from the second transverse sealing gasket 4 and the first transverse sealing gasket 3, and the second transverse sealing gasket 4 and the first transverse sealing gasket 3 do not obstruct the flap 2. This enables the flap 2 to be smoothly opened to adjust the suction force inside the exhaust duct 1.

[0033] On one side of the flap 2 facing the second transverse sealing gasket 4, there are a movable first arc-shaped sealing gasket 5 and a second arc-shaped sealing gasket 6. When the flap 2 is in the closed state, the first arc-shaped sealing gasket 5 and the second arc-shaped sealing gasket 6 respectively abut against the two arc-shaped sides of the flap 2, effectively avoiding the leakage of flue gas from the small gaps formed between the arc-shaped sides of the flap 2 and the inner wall of the exhaust duct 1, further enhancing the sealing performance of the flap 2 in the closed state, and comprehensively sealing the flap 2 in the closed state, ensuring the tightness inside the exhaust duct 1.

[0034] When the first arc-shaped sealing gasket 5 and the second arc-shaped sealing gasket 6 respectively move from one side of the arc-shaped side of the flap 2 to one side of the first docking plate 101 and the second docking plate 102, there is a space for the flap 2 to rotate and open. Therefore, the positions of the first arc-shaped sealing gasket 5 and the second arc-shaped sealing gasket 6 can be flexibly adjusted to adapt to different operating states of the flap 2, ensuring the stable opening of the flap 2 and also avoiding the friction phenomenon between the flap 2 and the first arc-shaped sealing gasket 5 and the second arc-shaped sealing gasket 6 during the rotation process.

[0035] As Figure 4 shown, outside the exhaust duct 1, there is a first driving motor 201 for controlling the rotation of the flap 2 and a first support frame 103 for carrying the first driving motor 201. The main shaft of the first driving motor 201 penetrates through the exhaust duct 1 and is connected to the center of the arc-shaped side of the flap 2. The first driving motor 201 can provide power for the opening and closing movement of the flap 2. By adjusting the opening and closing angle of the flap 2, the resistance of the exhaust duct 1 can be changed, thereby accurately controlling the flow rate and suction force of the flue gas.

[0036] As Figure 5As shown in the figure, extension plates 7 are fixed to the sides of the horizontal gasket 1 and the horizontal gasket 2 away from the flap 2. Removable linkage supports 8 are provided at the ends of the extension plates 7. The two linkage supports 8 are symmetrically distributed inside the exhaust duct 1, and the two linkage supports 8 are both connected to the same bevel gear ring 10 through removable positioning plates 9. When the bevel gear ring 10 rotates, the two positioning plates 9, the linkage supports 8, the extension plates 7, the horizontal gasket 1 and the horizontal gasket 2 all rotate around the central axis of the exhaust duct 1 until the arc-shaped gasket 1 and the arc-shaped gasket 2 deviate from the arc edge of the flap 2.

[0037] When the arc-shaped gasket 1 and the arc-shaped gasket 2 deviate from the arc edge of the flap 2 and move to the sides where the first docking plate 101 and the second docking plate 102 face the horizontal gasket 2 respectively, at this time, the arc-shaped gasket 1 and the arc-shaped gasket 2 do not obstruct the arc edge of the flap 2 in the rotating state, leaving a space for the flap 2 to rotate and open. When the flap 2 rotates and opens, according to its rotation angle, the suction inside the exhaust duct 1 can be adjusted.

[0038] As Figure 5 shown in the figure, a bevel gear 11 that is vertically distributed and meshed with the bevel gear ring 10 is provided on the bevel gear ring 10. Outside the exhaust duct 1, there is a second drive motor 1101 that can drive the bevel gear 11 to rotate and a second support frame 104 that can carry the second drive motor 1101. The main shaft of the second drive motor 1101 passes through the exhaust duct 1 and is connected to the central axis position of the bevel gear 11. When the second drive motor 1101 operates, the bevel gear 11 can be meshed with the bevel gear ring 10 to rotate around the central axis of the exhaust duct 1, so as to drive the two positioning plates 9, the linkage supports 8 and the extension plates 7 to rotate synchronously until the arc-shaped gasket 1 and the arc-shaped gasket 2 change positions.

[0039] Embodiment 2: On the basis of Embodiment 1, as Figure 6 、 Figure 7 shown in the figure, in order to maintain the stability of the two linkage supports 8 in the rotating state, in the present utility model, a guide ring 105 is fixedly connected to the inner wall of the exhaust duct 1. The linkage supports 8 are all in a C-shaped structure, and tracks adapted to the guide ring 105 are provided on the sides of the linkage supports 8 facing the inner wall of the exhaust duct 1. Therefore, in the actual use process of the suction adjustment device, when the linkage supports 8 are docked with the guide ring 105 through the tracks provided on their sides, the extension plates 7 and the positioning plates 9 on both sides of them can maintain stability, so as to ensure the stability of the arc-shaped gasket 1, the arc-shaped gasket 2 and the bevel gear ring 10.

[0040] In the present utility model, the two linkage supports 8 can be disassembled according to requirements, so as to facilitate the subsequent disassembly of the extension plate 7 and the arc-shaped gaskets I 5 and II 6 fixed thereto, and at the same time facilitate the disassembly operation of the positioning plate 9 and the bevel gear ring 10, which is conducive to the smooth implementation of the maintenance work of each component inside the smoke exhaust pipe 1.

[0041] Specifically, as Figure 6 shown, both ends of the two linkage supports 8 protrude towards the central axis position of the smoke exhaust pipe 1 to form feet. A same positioning rod 801 penetrates through the two feet located on the same horizontal plane. The parallelly distributed positioning rods 801 are opposite to the gap positions at the ends of the two linkage supports 8. The detachable positioning rod 801 connects the corresponding ends of the two linkage supports 8 to achieve the purpose of assembling the two linkage supports 8.

[0042] Furthermore, both ends of the positioning rod 801 are threaded portions 802, and two movable threaded limit rings 803 are provided on each threaded portion 802. When the linkage support 8 is docked with the guide ring 105 through the track provided on its side, the feet are sleeved outside the threaded portion 802, and the two threaded limit rings 803 respectively abut against both sides of the feet.

[0043] During the assembly process of the two linkage supports 8, the two linkage supports 8 are in a movable state on the positioning rod 801. When installing the two linkage supports 8 and the two positioning rods 801 together inside the smoke exhaust pipe 1, after the two linkage supports 8 are docked with the guide ring 105 through the tracks provided on their sides, each group of threaded limit rings 803 originally sleeved on each positioning rod 801 are respectively rotationally connected to the threaded portions 802 at both ends of the positioning rod 801, so that the threaded limit rings 803 are pressed against the opposite sides of the two feet located on the same horizontal plane. Subsequently, another threaded limit ring 803 is installed on the threaded portion 802, so that the threaded limit ring 803 is pressed against the other side of the feet. At this time, the two threaded limit rings 803 located on the same threaded portion 802 can clamp the feet, limit the two feet of the linkage support 8, complete the installation operation of the two linkage supports 8 and the guide ring 105, and maintain the stability of the limit support 8.

[0044] On the contrary, by successively operating the two threaded limit rings 803 on the surface of the threaded portion 802, the limiting state of the feet of the linkage support 8 can be released, leaving a space for the linkage support 8 to move along the positioning rod 801 to implement the disassembly operation of the linkage support 8.

[0045] It is worth mentioning that in the present utility model, the first horizontal gasket 3, the second horizontal gasket 4, the first arc gasket 5 and the second arc gasket 6 are all made of fluororubber. To maintain the connection stability, the first horizontal gasket 3 and the second horizontal gasket 4 are closely pasted on the surfaces of the second docking plate 102 and the first docking plate 101 respectively. The end parts of the two extension plates 7 are respectively embedded and fixed inside the first arc gasket 5 and the second arc gasket 6. The above fixing methods are all widely used fixing methods in the prior art, and other fixing methods can also be adopted according to actual operation requirements.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A flue suction regulating device, comprising an exhaust duct (1), characterized in that: The inner wall of the exhaust duct (1) is fixed with a first docking plate (101) and a second docking plate (102) symmetrically distributed along its cross-section. A rotatable flap (2) is arranged between the first docking plate (101) and the second docking plate (102). Both the first docking plate (101) and the second docking plate (102) are in an arcuate structure. The upper and lower ends of the flap (2) respectively correspond to the straight edges of the first docking plate (101) and the second docking plate (102). It further includes a first transverse gasket (3) and a second transverse gasket (4) respectively fixed on the surfaces of the second docking plate (102) and the first docking plate (101). The first transverse gasket (3) and the second transverse gasket (4) respectively abut against the bottom end and the top end of the flap (2), and the first transverse gasket (3) and the second transverse gasket (4) are respectively located on both sides of the flap (2). On one side of the flap (2) facing the second transverse gasket (4), there are a movable first arc gasket (5) and a second arc gasket (6). The first arc gasket (5) and the second arc gasket (6) respectively abut against the two arc edges of the flap (2). When the first arc gasket (5) and the second arc gasket (6) respectively move from one side of the arc edge of the flap (2) to one side of the first docking plate (101) and the second docking plate (102), there is a space for the flap (2) to rotate and open.

2. The flue suction adjustment device according to claim 1, wherein: Outside the exhaust duct (1), there is a first driving motor (201) for controlling the rotation of the flap (2) and a first support frame (103) for carrying the first driving motor (201). The main shaft of the first driving motor (201) penetrates through the exhaust duct (1) and is connected to the center of the arc edge of the flap (2).

3. The flue suction adjustment device according to claim 1, characterized in that: On the sides of the first transverse gasket (3) and the second transverse gasket (4) away from the flap (2), extension plates (7) are fixed. Removable linkage supports (8) are arranged at the ends of the extension plates (7). The two linkage supports (8) are symmetrically distributed inside the exhaust duct (1). The two linkage supports (8) are both connected to the same bevel gear ring (10) through removable positioning plates (9). When the bevel gear ring (10) rotates, the two positioning plates (9), the linkage supports (8), the extension plates (7), the first transverse gasket (3) and the second transverse gasket (4) all rotate around the central axis of the exhaust duct (1) until the first arc gasket (5) and the second arc gasket (6) deviate from the arc edges of the flap (2).

4. The flue suction adjustment device according to claim 3, characterized in that: A bevel gear (11) meshingly connected to the bevel gear ring (10) and perpendicular to it is arranged on the bevel gear ring (10). Outside the exhaust duct (1), there is a second driving motor (1101) for driving the bevel gear (11) to rotate and a second support frame (104) for carrying the second driving motor (1101). The main shaft of the second driving motor (1101) penetrates through the exhaust duct (1) and is connected to the central axis position of the bevel gear (11).

5. The flue suction adjustment device according to claim 3, wherein: A guide ring (105) is fixedly connected to the inner wall of the exhaust duct (1). The linkage supports (8) are all in a C-shaped structure. On the side of the linkage supports (8) facing the inner wall of the exhaust duct (1), tracks adapted to the guide ring (105) are respectively opened.

6. The flue suction adjustment device according to claim 5, characterized in that: Both ends of the two linkage supports (8) protrude towards the central axis position of the smoke exhaust pipe (1) to form supporting feet, and the same positioning rod (801) penetrates through the two supporting feet located on the same horizontal plane. The parallel distributed positioning rods (801) are opposite to the gap positions at the ends of the two linkage supports (8). Both ends of the positioning rod (801) are threaded parts (802), and two movable threaded limit rings (803) are provided on the threaded parts (802). When the linkage support (8) is docked with the guide ring (105) through the track provided on its side, the supporting foot is sleeved outside the threaded part (802), and the two threaded limit rings (803) respectively abut against both sides of the supporting foot.

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