Multi-section type small flue connecting pipe structure with waste gas flow self-adaptive adjustment function

Abstract

The utility model discloses a multi-section type small flue connecting pipe structure capable of adjusting waste gas flow in a self-adaptive mode in the technical field of small flue connecting pipes. The structure comprises a straight pipe section and an inclined pipe section through which waste gas flows, the waste gas enters the inclined pipe section from the straight pipe section, the straight pipe section comprises a first straight pipe, a second straight pipe and a third straight pipe, the second straight pipe is arranged between the first straight pipe and the third straight pipe, and the third straight pipe is connected with the inclined pipe section; a first adjusting plate which is vertically arranged is arranged in the second straight pipe; the first adjusting plate is provided with a first driving device for driving the first adjusting plate to rotate; and a plurality of transversely arranged second adjusting plates are arranged in the third straight pipe in the height direction of the third straight pipe, and the second adjusting plates are provided with second driving devices for driving the second adjusting plates to rotate. The utility model has the advantage that the abrasion is reduced.

Description

Technical Field

[0001] This utility model relates to the field of small flue connecting pipe technology, and in particular to a small flue connecting pipe structure with multi-stage adaptive adjustment of exhaust gas flow. Background Technology

[0002] The prior art discloses a small flue connecting pipe for coke oven exhaust gas recirculation, with authorization announcement number CN210711384U and authorization announcement date of 2020.06.09. This small flue connecting pipe adopts an inclined pipe in combination with a straight pipe. The flow of coke oven exhaust gas first enters the straight pipe and then enters the inclined pipe. When the high-speed exhaust gas flows for a long time, it causes wear on the pipe wall, especially the inclined pipe. After the exhaust gas passes through the straight pipe, it directly enters the inclined pipe, and the wear is most severe at a fixed position on the inclined surface of the inclined pipe. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage exhaust gas flow adaptive adjustment small flue pipe structure that reduces wear.

[0004] To achieve the aforementioned objectives of this utility model, the following technical solution is adopted for the multi-stage exhaust gas flow adaptive adjustment small flue connecting pipe structure:

[0005] A multi-segment flue gas flow adaptive adjustment small flue gas connection pipe structure includes a straight pipe section and an inclined pipe section for circulating exhaust gas. The exhaust gas enters the inclined pipe section from the straight pipe section. The straight pipe section includes a first straight pipe, a second straight pipe, and a third straight pipe. The second straight pipe is located between the first straight pipe and the third straight pipe, and the third straight pipe connects to the inclined pipe section. A vertically arranged first adjusting plate is provided inside the second straight pipe, and the first adjusting plate is provided with a first driving device for driving its rotation. A horizontally arranged second adjusting plate is provided inside the third straight pipe. Multiple second adjusting plates are arranged along the height direction of the third straight pipe, and the second adjusting plates are provided with a second driving device for driving their rotation.

[0006] Preferably, the first driving device includes a first motor mounted on the second straight pipe, a first rotating shaft disposed at the center of the first adjusting plate, the first adjusting plate being mounted inside the second straight pipe via the first rotating shaft, and the output shaft of the first motor being connected to the first rotating shaft. The first motor drives the first rotating shaft to rotate, thereby rotating the first adjusting plate, thus adjusting the flow cross-section of the exhaust gas and controlling the flow of exhaust gas.

[0007] Preferably, the second driving device includes a driving unit and a transmission unit. The driving unit includes a second motor mounted on the third straight pipe, the output shaft of which drives a driving wheel. A second rotating shaft is provided in the middle of the second adjusting plate, and the second adjusting plate is installed inside the third straight pipe via the second rotating shaft. A driven wheel is provided on the second rotating shaft of one of the second adjusting plates, and a first belt is wound around the outer periphery of the driving wheel and the driven wheel. The transmission unit includes several transmission wheels mounted on the second rotating shaft, and a second belt is wound between the transmission wheels of two adjacent second rotating shafts. The second motor drives the driving wheel to rotate, which in turn drives the driven wheel to rotate under the action of the first belt. The rotation of the driven wheel drives the transmission wheel to rotate, and under the action of the second belt, it drives other transmission wheels to rotate, thereby realizing the synchronous rotation of multiple second adjusting plates. This facilitates the simultaneous adjustment of the rotation angle of the second adjusting plates and achieves the control of the exhaust gas flow direction.

[0008] Preferably, the first straight pipe, the second straight pipe, and the third straight pipe are locked together by fasteners.

[0009] Preferably, the inner walls of the first straight pipe, the second straight pipe, the third straight pipe, and the inclined pipe section are all configured with a corrugated structure. The corrugated structure enhances the structural strength of the inner walls of the straight and inclined pipe sections.

[0010] Preferably, a temperature sensor and a pressure sensor are embedded in the inner wall of the first straight pipe, and the temperature sensor and the pressure sensor are electrically connected to the controller via cables; the controller is an embedded PLC, and its output terminal is connected to the first motor via cables.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention sets the straight pipe section into multiple segments, with a first regulating plate in the second straight pipe controlling the exhaust gas flow rate and a second regulating plate in the third straight pipe controlling the exhaust gas flow direction. This avoids high-speed exhaust gas impacting the inclined pipe section at a fixed position, disperses the airflow impact, reduces wear, and extends the service life of the small flue connecting pipe structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Top view sectional view;

[0015] Figure 3 This is a schematic diagram showing the installation of the second drive unit and the second adjustment plate.

[0016] Among them, 1 is the inclined tube section, 2 is the second adjusting plate, 3 is the second rotating shaft, 4 is the third straight tube, 5 is the second motor, 6 is the second straight tube, 7 is the first motor, 8 is the temperature sensor, 9 is the first straight tube, 10 is the pressure sensor, 11 is the first rotating shaft, 12 is the first adjusting plate, 13 is the driving wheel, 14 is the first belt, 15 is the driven wheel, 16 is the transmission wheel, and 17 is the second belt. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0018] like Figure 1-3As shown, a multi-segment flue gas flow adaptive adjustment small flue gas connection pipe structure includes a straight pipe section and an inclined pipe section 1 for circulating exhaust gas. The exhaust gas enters the inclined pipe section from the straight pipe section. The straight pipe section includes a first straight pipe 9, a second straight pipe 6, and a third straight pipe 4. The inner walls of the first straight pipe 9, the second straight pipe 6, the third straight pipe 4, and the inclined pipe section 1 are all designed with a corrugated structure. The first straight pipe 9, the second straight pipe 6, and the third straight pipe 4 are locked together by fasteners. The second straight pipe 6 is located between the first straight pipe 9 and the third straight pipe 4. The third straight pipe 4 connects to the inclined pipe section. The second straight pipe 6 has a... A vertically arranged first adjusting plate 12 is provided with a first driving device for rotating it. The first driving device includes a first motor 7 mounted on a second straight tube 6. A first rotating shaft 11 is provided in the middle of the first adjusting plate 12. The first adjusting plate 12 is installed inside the second straight tube 6 via the first rotating shaft 11. The output shaft of the first motor 7 is connected to the first rotating shaft 11. A temperature sensor 8 and a pressure sensor 10 are embedded in the inner wall of the first straight tube 9. The temperature sensor 8 and the pressure sensor 10 are electrically connected to a controller via cables. The controller is embedded... The PLC is connected to the first motor 7 via a cable. Temperature sensor 8 and pressure sensor 10 monitor data in real time, and the controller adjusts the opening of the first regulating plate according to the feedback signal to achieve adaptive adjustment. A second regulating plate 2 is arranged laterally inside the third straight pipe 4. Multiple second regulating plates 2 are arranged along the height of the third straight pipe 4. Each second regulating plate 2 is equipped with a second driving device to drive its rotation. The second driving device includes a driving part and a transmission part. The driving part includes a second motor 5 mounted on the third straight pipe 4. The output shaft of the second motor 5 is connected to a drive wheel 13. A second rotating shaft 3 is located in the middle of the second regulating plate 2, and the second regulating plate 2 is installed inside the third straight pipe 4 via the second rotating shaft 3. A driven wheel 15 is mounted on the second rotating shaft 3 of one of the second regulating plates 2. A first belt 14 is wound around the outer periphery of the drive wheel 13 and the driven wheel 15. The transmission part includes several transmission wheels 16 mounted on the second rotating shaft 3. A second belt 17 is wound between the transmission wheels 16 of two adjacent second rotating shafts 3. Therefore, the second motor synchronously adjusts the angles of multiple second regulating plates through belt drive, changing the airflow direction.

[0019] The specific working process and principle of this utility model are as follows: The exhaust gas first enters the first straight pipe 9, and the temperature and pressure of the exhaust gas are obtained by the temperature sensor 8 and the pressure sensor 10. The data is transmitted to the controller, and the controller feeds back the signal to control the first motor to operate. The first motor drives the first adjusting plate to rotate, thereby adjusting the flow cross section of the exhaust gas. When the exhaust gas enters the second straight pipe, the flow rate of the exhaust gas is regulated by different openings of the first adjusting plate. Subsequently, the exhaust gas enters the third straight pipe 4, and the second motor 5 drives the second adjusting plate 2 to rotate, so that the flow direction of the exhaust gas changes continuously, avoiding the exhaust gas from impacting the inclined pipe section at a fixed position, dispersing the airflow impact, and reducing wear.

[0020] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A small flue gas duct connection pipe structure with multi-stage adaptive adjustment of exhaust gas flow, characterized in that: The system includes a straight pipe section and an inclined pipe section for circulating exhaust gas. The exhaust gas enters the inclined pipe section from the straight pipe section. The straight pipe section includes a first straight pipe, a second straight pipe, and a third straight pipe. The second straight pipe is located between the first and third straight pipes, and the third straight pipe connects to the inclined pipe section. A first adjusting plate is vertically arranged inside the second straight pipe, and the first adjusting plate is equipped with a first driving device to drive its rotation. A second adjusting plate is horizontally arranged inside the third straight pipe. Multiple second adjusting plates are arranged along the height direction of the third straight pipe, and the second adjusting plates are equipped with a second driving device to drive their rotation.

2. The multi-stage flue gas flow self-adapting regulating small flue connecting pipe structure according to claim 1, characterized in that: The first driving device includes a first motor mounted on the second straight tube, a first rotating shaft disposed in the middle of the first adjusting plate, the first adjusting plate being mounted inside the second straight tube via the first rotating shaft, and the output shaft of the first motor being connected to the first rotating shaft.

3. The multi-stage flue gas flow self-adapting regulating small flue connecting pipe structure according to claim 1, characterized in that: The second driving device includes a driving part and a transmission part. The driving part includes a second motor mounted on the third straight tube. The output shaft of the second motor is connected to the driving wheel. A second rotating shaft is provided in the middle of the second adjusting plate. The second adjusting plate is installed inside the third straight tube through the second rotating shaft. A driven wheel is provided on the second rotating shaft of one of the second adjusting plates. A first belt is wound around the outer periphery of the driving wheel and the driven wheel. The transmission part includes a plurality of transmission wheels mounted on the second rotating shaft. A second belt is wound between the transmission wheels of two adjacent second rotating shafts.

4. The multi-stage flue gas flow self-adapting regulating small flue connecting pipe structure according to claim 1, characterized in that: The first straight pipe, the second straight pipe, and the third straight pipe are locked together by fasteners.

5. The multi-stage flue gas flow self-adapting regulating small flue connecting pipe structure according to claim 1, characterized in that: The inner walls of the first straight pipe, the second straight pipe, the third straight pipe, and the inclined pipe section are all designed with a wave-like structure.

6. The multi-stage flue gas flow self-adapting regulating small flue connecting pipe structure according to claim 1, characterized in that: A temperature sensor and a pressure sensor are embedded in the inner wall of the first straight pipe. The temperature sensor and the pressure sensor are electrically connected to the controller via cables. The controller is an embedded PLC, and its output terminal is connected to the first motor via cables.

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