Smoke flow velocity control device of chimney

Abstract

The utility model discloses a flue gas flow velocity control device of a chimney, and relates to the technical field of chimneys, the flue gas flow velocity control device of the chimney comprises a connecting plate, the bottom end of the connecting plate is movably provided with a mounting assembly, the top end of the connecting plate is provided with a round hole, the inner wall of the round hole is fixedly connected with a flow velocity adjusting mechanism, and the flow velocity adjusting mechanism comprises a shell; the outer surface of the shell is fixedly connected with the inner wall of the round hole, the top end of the shell is fixedly connected with a supporting plate, the top end of the supporting plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a worm, and the outer surface of the worm is connected with a worm gear in a meshed mode. The flue gas flow velocity control device is designed to be provided with a plurality of modules and a plurality of adjustable smoke exhaust pipes, so that the flue gas flow velocity can be quickly adjusted, the situation that flue gas is not discharged in time or the flow velocity is not adjusted in time is avoided, and the use effect of the flow velocity control device is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the chimney technical field, especially to a flue gas flow rate control device of chimney. BACKGROUND

[0002] In modern industrial production, many industries such as electric power, chemical industry, steel industry and the like rely on various combustion processes to provide energy or realize production process, and a large amount of flue gas will be inevitably generated in these processes, and the chimney as an indispensable part of industrial facilities mainly functions to discharge the flue gas into the atmosphere, and the reasonable design and operation of the chimney is of great significance to guarantee the smooth progress of industrial production and environmental protection, and the flue gas flow rate directly affects the diffusion effect of pollutants in the flue gas in the atmosphere.

[0003] In view of the related art above, the inventor considers that in the technical scheme above, the flue gas flow rate in the chimney inner cylinder is adjusted by changing the rotation angle of the circular baffle, and the adjustment precision of this mode may not be high enough to accurately adjust the flow rate to the ideal value. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a flue gas flow rate control device of chimney to improve the problem of limited flow rate adjustment precision of the existing flue gas flow rate control device.

[0005] The flue gas flow rate control device of chimney provided by the present application adopts the following technical scheme:

[0006] A flue gas flow rate control device of chimney, comprising a connecting plate, a mounting assembly movably arranged at the bottom end of the connecting plate, a circular hole formed at the top end of the connecting plate, a flow rate adjusting mechanism fixedly connected to the inner wall of the circular hole, the flow rate adjusting mechanism comprising a shell, the outer surface of the shell being fixedly connected to the inner wall of the circular hole, a support plate fixedly connected to the top end of the shell, an electric motor fixedly connected to the top end of the support plate, a worm fixedly connected to the output end of the electric motor, a worm gear meshingly connected to the outer surface of the worm, a central rod rotatably connected to the top end of the shell, the worm gear being fixedly sleeved on the outer surface of the central rod, a first bevel gear fixedly connected to the top end of the central rod, a plurality of second bevel gears meshingly connected to the outer surface of the first bevel gear, a connecting rod fixedly connected to the middle of one end of each of the plurality of second bevel gears, a plurality of smoke exhaust pipes penetrating through the top end of the shell, and each of the plurality of connecting rods penetrating through the outer surface of the plurality of smoke exhaust pipes from the end thereof away from the second bevel gear and rotatably connected to the inner wall of the plurality of smoke exhaust pipes, and a hollow sphere fixedly sleeved on the outer surface of each of the plurality of connecting rods.

[0007] By adopting the technical scheme, the effective ventilation sectional area in the smoke exhaust pipe can be adjusted through the change of the rotation angle of the hollow sphere, and then the smoke flow rate is controlled, the smoke flow rate is accurately controlled, the structure is simple and practical, the smoke flow rate can be quickly adjusted, and the control device can timely and effectively exhaust the smoke.

[0008] Optionally, the mounting assembly comprises a mounting groove, the mounting groove is arranged at the bottom end of the connecting plate, the inner wall of the mounting groove is movably connected with a mounting sleeve, the outer surface of the mounting sleeve is fixedly connected with a plurality of mounting plates, and a plurality of long grooves matched with the mounting plates are arranged at the bottom end of the connecting plate, the outer surface of the corresponding mounting plate is movably connected with the inner wall of the long groove, and the upper inner wall of the corresponding long groove and the inner wall of the mounting plate are threadedly connected with a connecting bolt.

[0009] By adopting the technical scheme, the appropriate mounting sleeve can be selected in the mounting groove according to the actual size and installation requirement of the chimney, and the mounting plate and the connecting bolt are used for fixing, so that the control device is better installed on the chimney, and the installation effect of the control device is improved.

[0010] Optionally, the top end of the connecting plate is fixedly connected with a plurality of supporting rods, and the top ends of the plurality of supporting rods are fixedly connected with a protective cover.

[0011] By adopting the technical scheme, the protective cover can protect the components in the flow rate adjusting mechanism, so that the normal operation of the control device is ensured.

[0012] Optionally, the outer surface of the hollow sphere is in rotating contact with the inner wall of the corresponding smoke exhaust pipe.

[0013] By adopting the technical scheme, the sealing performance between the hollow sphere and the inner wall of the smoke exhaust pipe is good when the hollow sphere rotates, the smoke leakage is reduced, and the smoke flow rate can be more accurately adjusted.

[0014] Optionally, the outer surface of the plurality of smoke exhaust pipes is fixedly connected with a sealing ring matched with the connecting rod, and the outer surface of the connecting rod is in rotating connection with the inner wall of the sealing ring.

[0015] By adopting the technical scheme, the sealing performance between the smoke exhaust pipe and the connecting rod is further enhanced, and the smoke leakage from the connection between the connecting rod and the smoke exhaust pipe is prevented.

[0016] Optionally, the top end of the shell is fixedly connected with a supporting shell matched with the connecting rod, and one end of the plurality of connecting rods penetrates through the outer surface of the supporting shell.

[0017] By adopting the technical scheme, the supporting shell provides support and guidance for the connecting rod, so that the connecting rod is more stable during rotation and shaking and deviation are reduced.

[0018] Optionally, the inner wall of the mounting sleeve is fixedly connected with a sealing ring, and the sealing ring and the mounting sleeve are concentrically arranged.

[0019] By adopting the above technical scheme, the sealing ring is in close contact with the outer surface of the chimney when the device is mounted on the chimney, thereby playing a sealing role and preventing flue gas from leaking from the connection between the device and the chimney.

[0020] Optionally, the plurality of mounting plates are arranged in a ring array, and the outer surfaces of the plurality of mounting plates are respectively arranged in the same shape as the inner walls of the plurality of long grooves.

[0021] By adopting the above technical scheme, the ring array distribution makes the mounting plates uniformly stressed during installation, which can more stably fix the device on the chimney, and the close cooperation between the mounting plates and the long grooves improves the installation precision and stability.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The utility model discloses a flow rate adjusting mechanism, which is designed as multiple modules, and multiple adjustable smoke exhaust pipes are arranged to quickly adjust the flow rate of smoke, avoid the situation that smoke is not discharged in time or the flow rate is not adjusted in time, and make the use effect of the flow rate control device optimal. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is an explosive structure schematic diagram of the utility model.

[0026] Figure 3 It is a sectional structure schematic diagram of the flow rate adjusting mechanism of the utility model.

[0027] Figure 4 It is an explosive structure schematic diagram of the mounting assembly of the utility model.

[0028] Figure 5 It is another perspective explosive structure schematic diagram of the mounting assembly of the utility model.

[0029] In the figure, 1 is a connecting plate, 2 is a flow rate adjusting mechanism, 21 is a hollow sphere, 22 is a sealing ring, 23 is a connecting rod, 24 is a first bevel gear, 25 is a motor, 26 is a support plate, 27 is a worm wheel, 28 is a center rod, 29 is a worm, 201 is a shell, 203 is a smoke exhaust pipe, 204 is a second bevel gear, 205 is a support shell, 3 is a mounting assembly, 31 is a mounting sleeve, 32 is a connecting bolt, 33 is a mounting plate, 34 is a long groove, 35 is a sealing ring, 36 is a mounting groove, 4 is a support rod, 5 is a protective cover, and 6 is a circular hole. DETAILED DESCRIPTION

[0030] The application will be further described below in conjunction with the accompanying drawings. Figure 1 - the drawings Figure 5 The application will be further described below in conjunction with the accompanying drawings.

[0031] A flue gas flow rate control device of a chimney, referring to Figure 1 and Figure 2 , comprising a connecting plate 1, a round hole 6, a flow rate adjusting mechanism 2, a support rod 4, a protective cover 5 and a mounting assembly 3, the round hole 6 is arranged at the top end of the connecting plate 1, the outer surface of the flow rate adjusting mechanism 2 is fixedly connected with the inner wall of the round hole 6, the flow rate adjusting mechanism 2 plays a role in facilitating accurate control of the flow rate of flue gas, the support rod 4 is provided with a plurality of support rods 4, the bottom end of the plurality of support rods 4 is fixedly connected with the top end of the connecting plate 1, the bottom end of the protective cover 5 is fixedly connected with the top end of the plurality of support rods 4, the plurality of support rods 4 are convenient for supporting the protective cover 5 together, the protective cover 5 plays a role in protecting the internal components of the flow rate adjusting mechanism 2, so as to increase the service life of the flow rate adjusting mechanism 2, the mounting assembly 3 is movably arranged at the bottom end of the connecting plate 1, the mounting assembly 3 is convenient for selecting a suitable mounting structure according to the actual situation of the chimney, so as to better install the control device structure.

[0032] Referring to Figure 1 and Figure 2 and Figure 3The flow rate regulating mechanism 2 includes a housing 201, a support plate 26, a worm 29, a worm wheel 27, a central rod 28, a first bevel gear 24, a second bevel gear 204, a connecting rod 23, a hollow sphere 21, a smoke exhaust pipe 203, a sealing ring 22, and a support shell 205. The outer surface of the housing 201 is fixedly connected to the inner wall of the circular hole 6. The bottom end of the support plate 26 is fixedly connected to the top end of the housing 201, so that the housing 201 can provide an installation position for the support plate 26. A motor 25 is fixedly connected to the top end of the support plate 26, and the output end of the motor 25 is fixedly connected to one end of the worm 29, so that the output end of the motor 25 can drive the worm 29. The outer surface of the worm 29 is meshed with the outer surface of the worm wheel 27. The bottom end of the central rod 28 is connected to the housing 201. The top center of the worm gear 29 is rotatably connected to the worm wheel 27, which is fixedly sleeved on the outer surface of the central rod 28. This facilitates the use of the worm gear 29 in conjunction with the worm wheel 27 to rotate the central rod 28. The bottom center of the first bevel gear 24 is fixedly connected to the top center of the central rod 28, which facilitates the rotation of the central rod 28 to drive the first bevel gear 24 to rotate. Multiple second bevel gears 204 are provided, and the multiple second bevel gears 204 are distributed in a rectangular array. The outer surfaces of the multiple second bevel gears 204 are all meshed with the outer surfaces of the first bevel gears 24, which facilitates the rotation of the first bevel gear 24 to drive the multiple second bevel gears 204 to rotate synchronously. Multiple connecting rods 23 are provided, and one end of each connecting rod 23 is fixedly connected to the middle of one end of each of the multiple second bevel gears 204, which facilitates the rotation of the second bevel gears 204 to rotate synchronously. 4. Rotation drives the connecting rod 23 to rotate. Multiple exhaust pipes 203 are provided, arranged in a rectangular array. The bottom ends of all exhaust pipes 203 penetrate the top of the housing 201, facilitating the discharge of flue gas through the housing 201 into the exhaust pipes 203. The ends of the connecting rods 23 facing away from the second bevel gear 204 sequentially penetrate the outer surfaces of the exhaust pipes 203 and are rotatably connected to the inner walls of the exhaust pipes 203, facilitating the positioning of the exhaust pipes 203 during rotation. Multiple sealing rings 22 are provided, with one end of each sealing ring fixedly connected to the outer surface of the exhaust pipes 203, and the outer surface of the connecting rod 23 rotatably connected to the inner wall of the sealing ring 22. The sealing rings 22 prevent the connecting rod 23 from rotating. Smoke leaks at the connection with the exhaust pipe 203. The bottom end of the support shell 205 is fixedly connected to the top end of the shell 201, and one end of each of the multiple connecting rods 23 penetrates the outer surface of the support shell 205, so that the support shell 205 can provide a certain support force when the connecting rods 23 rotate, so as to ensure the normal rotation of the connecting rods 23. Multiple hollow spheres 21 are provided, and the outer surface of the corresponding hollow spheres 21 rotates into contact with the inner wall of the corresponding exhaust pipe 203. Multiple hollow spheres 21 are fixedly sleeved on the outer surface of multiple connecting rods 23, so that the rotation of the connecting rods 23 can drive the hollow spheres 21 to rotate. The change of the rotation angle of the hollow spheres 21 can adjust the effective ventilation cross-sectional area in the exhaust pipe 203, thereby realizing rapid and precise control of the smoke flow rate.

[0033] Referring to Figure 4 and Figure 5 , the mounting assembly 3 comprises a mounting groove 36, a mounting sleeve 31, a sealing ring 35, a mounting plate 33, a long groove 34 and a connecting bolt 32, the mounting groove 36 is arranged at the bottom end of the connecting plate 1, the mounting sleeve 31 is movably connected to the inner wall of the mounting groove 36, the outer surface of the sealing ring 35 is fixedly connected to the inner wall of the mounting sleeve 31, and the sealing ring 35 and the mounting sleeve 31 are concentrically arranged, the sealing ring 35 is arranged to make the mounting sleeve 31 have better sealing performance when it is sleeved on the chimney, the mounting plate 33 is provided in plurality, one end of each of the plurality of mounting plates 33 is fixedly connected to the outer surface of the mounting sleeve 31, the long groove 34 is provided in plurality, each of the plurality of long grooves 34 is arranged at the bottom end of the connecting plate 1, the outer surface of the corresponding mounting plate 33 is movably connected to the inner wall of the long groove 34, the plurality of mounting plates 33 are arranged in annular array, and the outer surfaces of the plurality of mounting plates 33 are respectively arranged in the same shape as the inner walls of the plurality of long grooves 34, so that the mounting plate 33 and the connecting plate 1 can be accurately positioned when they are connected, and the connecting bolt 32 is provided in plurality, and each of the plurality of connecting bolts 32 is threadedly connected to the upper inner wall of the corresponding long groove 34 and the inner wall of the mounting plate 33, so that the mounting plate 33 and the connecting plate 1 can be stably connected, and the mounting structure is movable, so that the mounting sleeve 31 and the corresponding chimney can be connected together according to the actual situation, thereby facilitating the installation of the control device.

[0034] The implementation principle of the embodiment of the present application is as follows: first, when the control device is installed, the mounting assembly 3 is used to select the mounting sleeve 31 suitable for the shape of the chimney, and the mounting sleeve 31 is connected to the mounting groove 36 at the bottom end of the connecting plate 1.

[0035] The plurality of mounting plates 33 are connected to the long grooves 34 arranged at the bottom end of the connecting plate 1, then the upper inner wall of the long groove 34 and the inner wall of the mounting plate 33 are threadedly connected by the connecting bolt 32, and the mounting sleeve 31 and the connecting plate 1 are further fixed.

[0036] Then the mounting sleeve 31 is sleeved on the chimney, and the sealing ring 35 fixedly connected to the inner wall of the mounting sleeve 31 is in close contact with the outer surface of the chimney, thereby playing a sealing role and preventing the leakage of flue gas from the connection between the device and the chimney.

[0037] When the flue gas flow rate needs to be controlled, the flow rate adjusting mechanism 2 is used to remotely start the motor 25, and the output end of the motor 25 drives the worm 29 to rotate, and the rotation of the worm 29 drives the worm wheel 27 to rotate.

[0038] When the worm wheel 27 rotates, the central rod 28 rotates synchronously, and the first bevel gear 24 at the top end of the central rod 28 also rotates, and the rotation of the first bevel gear 24 drives the plurality of second bevel gears 204 to rotate.

[0039] The second bevel gear 204 rotates to drive the connecting rod 23 to rotate, and the sealing ring 22 further enhances the sealing between the exhaust pipe 203 and the connecting rod 23, preventing smoke from leaking from the connecting part. The supporting shell 205 provides support and guidance for the connecting rod 23.

[0040] The connecting rod 23 rotates to drive the hollow sphere 21 to rotate in the exhaust pipe 203. When the hollow sphere 21 rotates, the gap between the hollow sphere 21 and the inner wall of the exhaust pipe 203 changes, thereby changing the effective ventilation cross-sectional area in the exhaust pipe 203 and achieving precise adjustment of the flow rate of the flue gas.

[0041] At the same time, the protective cover 5 on the supporting rod 4 can protect the components in the flow rate adjusting mechanism 2, preventing dust, rainwater and other impurities from entering the equipment.

[0042] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for controlling the flow rate of flue gases in a chimney, comprising a connecting plate (1), characterised in that: The bottom end of the connecting plate (1) movably provided with a mounting assembly (3), the top end of the connecting plate (1) is provided with a round hole (6), the inner wall of the round hole (6) is fixedly connected with a flow rate adjusting mechanism (2); The flow rate adjusting mechanism (2) comprises a shell (201), the outer surface of the shell (201) is fixedly connected with the inner wall of the round hole (6), the top end of the shell (201) is fixedly connected with a support plate (26), the top end of the support plate (26) is fixedly connected with a motor (25), and the output end of the motor (25) is fixedly connected with a worm (29), the outer surface of the worm (29) is engagedly connected with a worm wheel (27), the top end of the shell (201) is rotatably connected with a center rod (28), and the worm wheel (27) is fixedly sleeved on the outer surface of the center rod (28), the top end of the center rod (28) is fixedly connected with a first bevel gear (24), and the outer surface of the first bevel gear (24) is engagedly connected with a plurality of second bevel gears (204), one end of the plurality of second bevel gears (204) is fixedly connected with a connecting rod (23), the top end of the shell (201) is provided with a plurality of smoke exhaust pipes (203), and one end of the plurality of connecting rods (23) away from the second bevel gears (204) is sequentially penetrated through the outer surfaces of the plurality of smoke exhaust pipes (203) and rotatably connected with the inner walls of the plurality of smoke exhaust pipes (203), and the outer surfaces of the plurality of connecting rods (23) are fixedly sleeved with a hollow sphere (21).

2. A device for controlling the flow rate of flue gases in a chimney according to claim 1, characterized in that: The mounting assembly (3) comprises a mounting groove (36), the mounting groove (36) is formed in the bottom end of the connecting plate (1), the inner wall of the mounting groove (36) movably clamps a mounting sleeve (31), the outer surface of the mounting sleeve (31) is fixedly connected with a plurality of mounting plates (33), and the bottom end of the connecting plate (1) is provided with a plurality of long grooves (34) matched with the mounting plates (33), the outer surface of the corresponding mounting plate (33) is movably clamped with the inner wall of the long groove (34), and the upper inner wall of the corresponding long groove (34) and the inner wall of the mounting plate (33) are threadedly connected with a connecting bolt (32).

3. A device for controlling the flow rate of flue gases in a chimney according to claim 1, characterized in that: The top end of the connecting plate (1) is fixedly connected with a plurality of supporting rods (4), and the top ends of the plurality of supporting rods (4) are fixedly connected with a protective cover (5).

4. A device for controlling the flow rate of flue gases in a chimney according to claim 1, characterized in that: The outer surface of the corresponding hollow sphere (21) is rotatably contacted with the inner wall of the corresponding smoke exhaust pipe (203).

5. A device for controlling the flow rate of flue gases in a chimney according to claim 1, characterized in that: The outer surfaces of the plurality of smoke exhaust pipes (203) are fixedly connected with sealing rings (22) matched with the connecting rods (23), and the outer surfaces of the connecting rods (23) are rotatably connected with the inner walls of the sealing rings (22).

6. A device for controlling the flow rate of flue gas in a chimney according to claim 1, characterized in that: The top end of the shell (201) is fixedly connected with a support shell (205) matched with the connecting rods (23), and one end of the plurality of connecting rods (23) penetrates the outer surface of the support shell (205).

7. A device for controlling the flow rate of flue gas in a chimney according to claim 2, characterized in that: The inner wall of the mounting sleeve (31) is fixedly connected with a sealing ring (35), and the sealing ring (35) and the mounting sleeve (31) are concentrically arranged.

8. A device for controlling the flow rate of flue gas in a chimney according to claim 2, characterized in that: The plurality of mounting plates (33) are arranged in a ring array, and the outer surfaces of the plurality of mounting plates (33) are respectively provided in the same shape as the inner wall of the plurality of long grooves (34).

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