Fan-shaped plate adjusting device of rotary air preheater

Abstract

The utility model relates to the technical field of heat exchange equipment, and discloses a rotary air preheater sector plate adjusting device which comprises a machine shell, an outer ring is rotatably connected to the interior of the machine shell, a sector plate body is slidably connected to the interior of the outer ring, a rotary knob is rotatably connected to the interior of the outer ring, a worm is fixedly connected to one side of the outer wall of the rotary knob, and the worm is fixedly connected to the other side of the outer wall of the rotary knob. The inner portion of the outer ring is rotationally connected with a first gear, the first gear is meshed with the first toothed plate, the inner portion of the outer ring is slidably connected with a second toothed plate, and the second toothed plate is meshed with the first gear. According to the rotary air preheater, the rotary knob enables the worm gear, the rack and the first gear to drive the first toothed plate and the second toothed plate to move through the worm, then the fan-shaped plate body is adjusted through the connecting ring and the sliding column, the effects of adjusting the fan-shaped plate body and ensuring efficient and stable operation of heat exchange equipment are achieved, and the problem that in actual use of an existing rotary air preheater, the existing rotary air preheater is inconvenient to operate is solved. The air leakage rate is increased, and the heat exchange efficiency is influenced, and the energy utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a rotary air preheater fan-shaped plate regulating device. Background Art

[0002] In thermal power plants, the air preheater is one of the key components of the boiler system. It is responsible for transferring heat from the flue gas to the air entering the boiler, thereby improving the thermal efficiency and economic efficiency of the boiler. With increasingly stringent environmental protection standards, reducing pollutant emissions in industrial production has become an important task. It optimizes the operation of the air preheater and improves combustion conditions through the fan plate adjustment device, which helps to reduce the generation and emission of pollutants such as nitrogen oxides and sulfur dioxide.

[0003] The rotary air preheater is mainly composed of a cylindrical rotor, a fan-shaped plate, a fixed cylindrical shell and a drive device. It uses flue gas and air to alternately pass through a metal heating surface to heat the air. Specifically, the rotor of the rotary air preheater is the heating surface, which is equipped with a heat storage plate. When the rotor rotates, the heat storage plate will pass through the flue gas side and the air side in turn. On the flue gas side, the high-temperature flue gas transfers heat to the heat storage plate, causing its temperature to rise. On the air side, the low-temperature air absorbs heat from the heat storage plate and its temperature rises. As the rotor continues to rotate, the flue gas and air continuously exchange heat, thereby achieving preheating of the air, and the fan-shaped plate can effectively reduce air leakage between the air and the flue gas.

[0004] However, in actual use, the existing rotary air preheater has an uneven distribution of the temperature field inside the air preheater, which can cause the fan plate to produce mushroom-shaped deformation, thereby increasing the air leakage, thereby affecting the heat exchange efficiency and the normal operation of the equipment. Therefore, a rotary air preheater fan plate adjustment device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a rotary air preheater fan plate adjustment device, which aims to improve the existing rotary air preheater in the prior art, in which the internal temperature field is unevenly distributed, the fan plate is deformed, and the air leakage is increased, which affects the heat exchange efficiency.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A rotary air preheater fan plate adjustment device includes a casing, an outer ring rotatably connected inside the casing, a fan-shaped plate body slidably connected inside the outer ring, a knob rotatably connected inside the outer ring, a worm fixedly connected to one side of the outer wall of the knob, a worm wheel rotatably connected inside the outer ring, the worm wheel meshes with the worm, a tooth plate 1 slidably connected inside the outer ring, a rack fixedly connected to one side of the outer wall of the tooth plate 1, the rack meshes with the worm wheel, a gear 1 rotatably connected inside the outer ring, and the gear 1 meshes with the tooth plate 1. , the outer ring is slidably connected with a toothed plate 2, the toothed plate 2 is meshed with the gear 1, the toothed plate 1 and one side of the outer wall of the toothed plate 2 are both rotatably connected with a transmission rod, one side of the outer wall of the transmission rod is rotatably connected to a connecting shaft, the outer wall of the connecting shaft is fixedly connected to a connecting block, the bottom of the connecting block is rotatably connected to a connecting ring, the connecting ring is slidably connected with a sliding column, one side of the outer wall of the sliding column is fixedly connected to one side of the outer wall of the fan-shaped plate body, and a protective component is provided inside the casing, which can be opened when needed to adjust the outer ring;

[0008] As a further description of the above technical solution:

[0009] The protection assembly includes a maintenance door and a handle, one side of the outer wall of the handle is fixedly connected to one side of the outer wall of the maintenance door, and the bottom of the maintenance door is rotatably connected to the inside of the housing;

[0010] As a further description of the above technical solution:

[0011] The top of the housing is fixedly connected to a fixed block, the interior of the fixed block is fixedly connected to a motor, and the output end of the motor is fixedly connected to a transmission block;

[0012] As a further description of the above technical solution:

[0013] The top of the transmission block is fixedly connected to a transmission column, the outer wall of the transmission column is slidably connected to a hollow column, and the bottom of the hollow column is slidably connected to the inside of the fixed block;

[0014] As a further description of the above technical solution:

[0015] One side of the outer wall of the hollow column is fixedly connected to a tooth plate three, and one side of the outer wall of the tooth plate three is slidably connected to the inside of the fixed block;

[0016] As a further description of the above technical solution:

[0017] The fixed block is internally connected to a second gear for rotation, and the second gear is engaged with the toothed plate in three phases;

[0018] As a further description of the above technical solution:

[0019] A transmission shaft is rotatably connected inside the fixed block, and one side of the outer wall of the transmission shaft is fixedly connected to one side of the outer wall of the second gear;

[0020] As a further description of the above technical solution:

[0021] A plurality of nozzles are fixedly connected to the outer wall of the transmission shaft.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the worm is rotated by the knob, and the tooth plate 1 and the tooth plate 2 are driven to move by the worm gear, rack and gear 1, so that the transmission rod drives the connecting shaft, connecting block, connecting ring and sliding column to adjust the fan-shaped plate body, thereby achieving the effect of being able to adjust the fan-shaped plate body to ensure the efficient and stable operation of the heat exchange equipment, solving the problem of uneven distribution of the internal temperature field of the existing rotary air preheater in actual use, deformation of the fan plate, increased air leakage, and affected heat exchange efficiency, thereby improving energy utilization.

[0024] In the utility model, the starting motor drives the transmission block to rotate, so that the transmission column is forced to drive the hollow column and the tooth plate to move, and then the transmission shaft and the nozzle are driven by gear 2 to clean the sector plate body, thereby effectively removing dirt, dust, and debris on the sector block or related components, reducing the need for manual cleaning, and solving the problem that the device needs to be cleaned manually on a regular basis, which is not only time-consuming and labor-intensive, but also causes dirt accumulation due to excessively long cleaning intervals, affecting equipment performance, thereby improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a rotary air preheater fan plate adjustment device proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the knob structure of a rotary air preheater fan plate adjustment device proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the transmission rod structure of a rotary air preheater sector plate adjustment device proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the transmission block structure of a rotary air preheater sector plate adjustment device proposed by the utility model.

[0029] Legend:

[0030] 1. Casing; 2. Outer ring; 3. Sector plate; 4. Knob; 5. Worm; 6. Worm gear; 7. Rack; 8. Tooth plate 1; 9. Gear 1; 10. Tooth plate 2; 11. Drive rod; 12. Connecting shaft; 13. Connecting block; 14. Connecting ring; 15. Sliding column; 16. Maintenance door; 17. Handle; 18. Fixed block; 19. Motor; 20. Drive block; 21. Drive column; 22. Hollow column; 23. Tooth plate 3; 24. Gear 2; 25. Drive shaft; 26. Nozzle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a rotary air preheater fan plate adjustment device, including a casing 1, an outer ring 2 is rotatably connected inside the casing 1, a fan-shaped plate body 3 is slidably connected inside the outer ring 2, a knob 4 is rotatably connected inside the outer ring 2, a worm 5 is fixedly connected to one side of the outer wall of the knob 4, a worm gear 6 is rotatably connected inside the outer ring 2, the worm gear 6 is meshed with the worm 5, a tooth plate 8 is slidably connected inside the outer ring 2, a rack 7 is fixedly connected to one side of the outer wall of the tooth plate 8, the rack 7 is meshed with the worm gear 6, a gear 9 is rotatably connected inside the outer ring 2, and the gear 9 is meshed with the tooth plate 8. Meshing, the outer ring 2 is slidably connected to a tooth plate 2 10, which is meshed with a gear 1 9, and one side of the outer wall of the tooth plate 1 8 and the tooth plate 2 10 is rotatably connected to a transmission rod 11, and one side of the outer wall of the transmission rod 11 is rotatably connected to a connecting shaft 12, and the outer wall of the connecting shaft 12 is fixedly connected to a connecting block 13, and the bottom of the connecting block 13 is rotatably connected to a connecting ring 14, and the inner part of the connecting ring 14 is slidably connected to a sliding column 15, and one side of the outer wall of the sliding column 15 is fixedly connected to one side of the outer wall of the sector plate 3. A protective component is provided inside the casing 1, which can be opened when needed to adjust the outer ring 2;

[0033] Specifically, when using the fan-shaped plate adjustment device of the rotary air preheater and adjusting the fan-shaped plate body 3, first turn the knob 4. The rotation of the knob 4 will drive the rotation of the worm 5. Due to the meshing relationship between the worm 5 and the worm wheel 6, the worm wheel 6 will be forced to rotate accordingly. The rotation of the worm wheel 6 meshes with the rack 7 and the tooth plate 18, so that the tooth plate 18 moves in a straight line direction. The movement of the tooth plate 18 will drive the gear 19 meshed with it to rotate. The rotation of the gear 9 will drive the tooth plate 2 10 to move in the opposite direction. The reverse movement of the tooth plate 2 10 will further drive the transmission rod 11 to move, changing its tilt state. The movement of 11 not only affects its own inclination angle, but also drives the movement of the connecting shaft 12. The movement of the connecting shaft 12 is transmitted through the connecting block 13 and the connecting ring 14, and finally drives the sliding column 15 to rotate. The rotation of the sliding column 15 directly acts on the fan-shaped plate body 3, causing it to move accordingly, thereby completing the adjustment of the fan-shaped plate body 3. The entire adjustment process is a precise mechanical transmission process involving the coordinated work of multiple transmission elements, ensuring the accuracy and reliability of the adjustment. Through such a design, the position and angle of the fan-shaped plate body 3 in the rotary air preheater can be effectively controlled to achieve the purpose of optimizing the heat exchange efficiency.

[0034] Reference Figure 1 - Figure 3 , the protection assembly includes a maintenance door 16 and a handle 17, one side of the outer wall of the handle 17 is fixedly connected to one side of the outer wall of the maintenance door 16, and the bottom of the maintenance door 16 is rotatably connected to the inside of the casing 1;

[0035] Specifically, the rotary air preheater fan plate adjustment device is in an industrial environment and will be affected by dust and pollutants. The setting of the maintenance door 16 can effectively isolate the external environment, reduce the dust and pollutants from entering the adjustment device, thereby protecting the equipment from pollution and extending the service life of the equipment.

[0036] Reference Figure 2 - Figure 4 The top of the casing 1 is fixedly connected to a fixed block 18, and a motor 19 is fixedly connected to the inside of the fixed block 18. The output end of the motor 19 is fixedly connected to a transmission block 20. The top of the transmission block 20 is fixedly connected to a transmission column 21. The outer wall of the transmission column 21 is slidably connected to a hollow column 22. The bottom of the hollow column 22 is slidably connected to the inside of the fixed block 18. One side of the outer wall of the hollow column 22 is fixedly connected to a gear plate three 23. One side of the outer wall of the gear plate three 23 is slidably connected to the inside of the fixed block 18. The fixed block 18 is internally rotatably connected to a gear two 24, and the gear two 24 is meshed with the gear plate three 23. The fixed block 18 is internally rotatably connected to a transmission shaft 25, and one side of the outer wall of the transmission shaft 25 is fixedly connected to one side of the outer wall of the gear two 24. The outer wall of the transmission shaft 25 is fixedly connected to a plurality of nozzles 26.

[0037] Specifically, when the sector plate 3 needs to be cleaned, the motor 19 is first started. The start of the motor 19 will drive the transmission block 20 to rotate. The rotation of the transmission block 20 causes the transmission column 21 to rotate through its connection with the transmission column 21. The rotation of the transmission column 21 further drives the hollow column 22 to reciprocate. The reciprocating movement of the hollow column 22 will drive the gear plate three 23 engaged therewith to move synchronously. The synchronous movement of the gear plate three 23 causes the gear two 24 to be forced to reciprocate. The reciprocating rotation of the gear two 24 is transmitted through the transmission shaft 25, driving the nozzle 26 to swing back and forth, and then the nozzle 26 is started to spray the cleaning liquid to clean the sector plate 3. Cleaning, at the same time, in the process of spraying the cleaning liquid, the rotation mechanism of the fan-shaped plate body 3 is started, and the fan-shaped plate body 3 is rotated under the spraying of the cleaning liquid to ensure that the cleaning liquid can evenly cover all parts of the fan-shaped plate body 3, thereby achieving a comprehensive cleaning effect. The entire cleaning process is an automated and efficient cleaning operation. By starting the motor 19, continuous action from the transmission block 20 to the nozzle 26 is achieved, ensuring the smoothness of the cleaning process and the thorough cleaning of the fan-shaped plate body 3. This design not only improves the cleaning efficiency, but also ensures the uniformity and thoroughness of the cleaning, which is of great significance for maintaining the efficient operation of the rotary air preheater and extending its service life.

[0038] Working principle: When using the rotary air preheater sector plate adjustment device, when the sector plate body 3 needs to be adjusted, first turn the knob 4, which drives the worm 5 to rotate, causing the worm wheel 6 to rotate under force, and then drives the tooth plate 1 8 to move through the rack 7. Subsequently, the movement of the tooth plate 1 8 drives the gear 1 9 to rotate, causing the tooth plate 2 10 to move in the opposite direction. At this time, the movement of the gear 1 9 and the tooth plate 2 10 will drive the transmission rod 11 to move, changing the tilt state. At the same time, the movement of the transmission rod 11 will drive the connecting shaft 12 to move, causing the sliding column 15 to rotate through the connecting block 13 and the connecting ring 14, and then Then, the sliding column 15 is used to drive the sector plate 3 to move for adjustment. When the sector plate 3 needs to be cleaned, the motor 19 is first started. The motor 19 drives the transmission block 20 to rotate to drive the transmission column 21 to drive the hollow column 22 to move back and forth. While the hollow column 22 moves, it drives the gear plate three 23 to move synchronously, so that the gear two 24 is forced to rotate back and forth. While the gear two 24 rotates back and forth, the transmission shaft 25 drives the nozzle 26 to swing back and forth. At this time, the nozzle 26 is started to spray the cleaning liquid, and the device is started at the same time to rotate the sector plate 3 to clean the sector plate 3.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary air preheater fan plate adjustment device, comprising a housing (1), characterized in that: The housing (1) is internally connected to an outer ring (2) for rotation, and the outer ring (2) is internally connected to a fan-shaped plate (3) for sliding. The outer ring (2) is internally connected to a knob (4), and a worm (5) is fixedly connected to one side of the outer wall of the knob (4). The outer ring (2) is internally connected to a worm wheel (6), and the worm wheel (6) is meshed with the worm (5). The outer ring (2) is internally connected to a toothed plate (8), and a rack (7) is fixedly connected to one side of the outer wall of the toothed plate (8). The rack (7) is meshed with the worm wheel (6). The outer ring (2) is internally connected to a gear (9), and the gear (9) is meshed with the geared plate (8). The outer ring (2) is internally connected to a gear (9). A tooth plate 2 (10) is connected, and the tooth plate 2 (10) is meshed with the gear 1 (9). The tooth plate 1 (8) and the outer wall of the tooth plate 2 (10) are both rotatably connected to a transmission rod (11), and the outer wall of the transmission rod (11) is rotatably connected to a connecting shaft (12). The outer wall of the connecting shaft (12) is fixedly connected to a connecting block (13), and the bottom of the connecting block (13) is rotatably connected to a connecting ring (14). The inside of the connecting ring (14) is slidably connected to a sliding column (15), and the outer wall of the sliding column (15) is fixedly connected to the outer wall of the fan-shaped plate body (3). A protective component is provided inside the casing (1), and the protective component can be opened when needed to adjust the outer ring (2).

2. The rotary air preheater sector plate adjustment device according to claim 1, characterized in that: The protective assembly comprises a maintenance door (16) and a handle (17), wherein one side of an outer wall of the handle (17) is fixedly connected to one side of an outer wall of the maintenance door (16), and the bottom of the maintenance door (16) is rotatably connected to the interior of the housing (1).

3. The rotary air preheater sector plate adjustment device according to claim 2, characterized in that: A fixing block (18) is fixedly connected to the top of the housing (1), a motor (19) is fixedly connected inside the fixing block (18), and a transmission block (20) is fixedly connected to the output end of the motor (19).

4. The rotary air preheater sector plate adjustment device according to claim 3, characterized in that: The top of the transmission block (20) is fixedly connected to a transmission column (21), the outer wall of the transmission column (21) is slidably connected to a hollow column (22), and the bottom of the hollow column (22) is slidably connected to the inside of the fixed block (18).

5. The rotary air preheater sector plate adjustment device according to claim 4, characterized in that: One side of the outer wall of the hollow column (22) is fixedly connected to a tooth plate three (23), and one side of the outer wall of the tooth plate three (23) is slidably connected to the interior of the fixed block (18).

6. The rotary air preheater sector plate adjustment device according to claim 5, characterized in that: The fixed block (18) is internally rotatably connected to a gear 2 (24), and the gear 2 (24) is meshed with the gear plate 3 (23).

7. The rotary air preheater sector plate adjustment device according to claim 6, characterized in that: The fixed block (18) is internally rotatably connected to a transmission shaft (25), and one side of the outer wall of the transmission shaft (25) is fixedly connected to one side of the outer wall of the second gear (24).

8. The rotary air preheater sector plate adjustment device according to claim 7, characterized in that: A plurality of nozzles (26) are fixedly connected to the outer wall of the transmission shaft (25).

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