Large environmental protection exhaust gas treatment equipment exhaust smoke axial flow fan device

Abstract

The utility model discloses a large -scale environmental protection exhaust gas treatment equipment is with exhaust fume axial -flow fan device, including fan outer cylinder, the inboard wall on the left side board of fan outer cylinder is fixed with motor frame, and is fixed with drive motor on the motor frame, and is fixed with the impeller on the output shaft of drive motor, the right side wall board of fan outer cylinder is formed with the overhauling through groove, and the overhauling through groove is opposite drive motor and impeller, and the inboard wall of the right side wall board of fan outer cylinder is covered with arc turnover board, and arc turnover board covers the overhauling through groove, and the front and rear of the lower part of arc turnover board are all swing jointed on fan outer cylinder through hinged axle, and the inboard wall on the upper part of arc turnover board is fixed with the connecting strip. It can be in the dismantling fan outer cylinder, and through opening arc turnover board, can carry out the maintenance operation to the inside drive motor and other components, greatly reduces the difficulty of maintenance and maintenance, and the use effect is good.

Description

Technical fields:

[0001] This utility model relates to the field of fan equipment technology, and more specifically to a smoke exhaust axial flow fan device for large-scale environmental protection waste gas treatment equipment. Background technology:

[0002] In existing environmental protection waste gas equipment, centrifugal fans are generally used for air guiding and exhaust. In order to increase the exhaust volume, some equipment also uses centrifugal fans for exhaust.

[0003] However, when a centrifugal fan is used as a guide or exhaust fan, one end is fixed to the casing and connected to its discharge end, while the other end is connected to the exhaust connection pipe. The fan motor is located inside the cylinder. When it is damaged, the entire cylinder needs to be disassembled from the casing and the exhaust connection pipe for repair, which is troublesome and affects the performance. Utility model content:

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a smoke exhaust axial flow fan device for large-scale environmental protection waste gas treatment equipment. It can remove the outer cylinder of the fan and perform maintenance operations on internal components such as the drive motor by opening the arc-shaped flip plate, which greatly reduces the difficulty of maintenance and has good performance.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A large-scale environmental protection waste gas treatment equipment exhaust axial flow fan device includes a fan outer cylinder, a motor frame is fixed on the inner wall of the left side plate of the fan outer cylinder, a drive motor is fixed on the motor frame, and an impeller is fixed on the output shaft of the drive motor.

[0007] A maintenance through slot is formed on the right side wall of the outer cylinder of the fan. The maintenance through slot faces the drive motor and impeller. An arc-shaped flip plate covers the outer side wall of the right side wall of the outer cylinder of the fan. The arc-shaped flip plate covers the maintenance through slot. The lower front and rear parts of the arc-shaped flip plate are movably connected to the outer cylinder of the fan via hinge shafts. A connecting strip is fixed on the upper outer side wall of the arc-shaped flip plate. The front, middle and rear parts of the left end of the connecting strip are formed with through holes. A connecting block is fixed on the top surface of the outer cylinder of the fan at the left end of the connecting strip. The screw part of the fixing bolt is inserted into the corresponding through hole and screwed into the screw through hole of the corresponding connecting block. The bottom surface of the left end of the connecting strip presses against the outer wall surface of all the connecting blocks.

[0008] Sound-absorbing cotton blocks are fixed on the inner wall of the arc-shaped flip plate, and the sound-absorbing cotton blocks fill the entire maintenance through groove.

[0009] A layer of sound-absorbing cotton is fixed on the inner wall of the outer cylinder of the fan.

[0010] An elastic sealing layer is fixed on both the front and rear ends of the arc-shaped flip plate. The elastic sealing layer is in close contact with the inner end face of the radially extended connecting plate formed at both ends of the outer cylinder of the fan.

[0011] The outstanding effect of this utility model is:

[0012] It allows for the removal of the outer casing of the blower, and by opening the arc-shaped flip plate, internal components such as the drive motor can be repaired, greatly reducing the difficulty of maintenance and achieving good results. Attached image description:

[0013] Figure 1 This is a partial structural schematic diagram of the present invention;

[0014] Figure 2 This is a partial sectional view of the outer cylinder of the fan of this utility model;

[0015] Figure 3 This is a partial structural diagram of the outer cylinder of the fan of this utility model. Detailed implementation method:

[0016] For example, see below. Figures 1 to 3 As shown, a large-scale environmental protection waste gas treatment equipment exhaust axial flow fan device includes a fan outer cylinder 10. A motor frame 11 is welded and fixed on the inner wall of the left side plate of the fan outer cylinder 10. A drive motor 20 is fixed on the motor frame 11. An impeller 21 is fixed on the output shaft of the drive motor 20.

[0017] The right side wall of the outer casing 10 of the fan has a maintenance through slot 12 formed therein, which faces the drive motor 20 and the impeller 21. An arc-shaped flip plate 22 covers the outer side wall of the right side wall of the outer casing 10, covering the maintenance through slot 12. The lower front and rear parts of the arc-shaped flip plate 22 are movably connected to the outer casing 10 of the fan via hinge shafts. A connecting strip 23 is fixed to the upper outer side wall of the arc-shaped flip plate 22. The front, middle and rear parts of the left end of the connecting strip 23 are all formed with through holes. A connecting block 24 is fixed on the top surface of the fan outer cylinder 10 at the left end of the connecting strip 23. The screw part of the fixing bolt 25 is inserted into the corresponding through hole and screwed into the corresponding screw through hole of the connecting block 24. The bottom surface of the left end of the connecting strip 23 presses against the outer wall surface of all the connecting blocks 24. A washer is also inserted into the screw part of the fixing bolt 25. The washer is clamped between the rotating part of the fixing bolt 25 and the outer wall surface of the connecting strip 23.

[0018] Furthermore, sound-absorbing cotton blocks 26 are fixed on the inner wall surface of the arc-shaped flip plate 22, and the sound-absorbing cotton blocks 26 fill the entire maintenance through groove 12. A sound-absorbing cotton layer 13 is fixed on the inner side wall of the fan outer cylinder 10, and the inner side wall of the sound-absorbing cotton blocks 26 and the inner side wall of the sound-absorbing cotton layer 13 form a cylindrical inner wall.

[0019] Furthermore, elastic sealing layers 1 are fixed to both the front and rear end faces of the arc-shaped flip plate 22, and the elastic sealing layers 1 are in close contact with the inner end faces of the radially extending connecting plates 14 formed at both the front and rear ends of the outer cylinder 10 of the fan. This increases the friction at both ends of the arc-shaped flip plate 22 after it is fixedly installed, thereby further improving the sealing or connection effect.

[0020] Furthermore, a mounting bracket 15 is fixed to the bottom surface of the bottom wall panel of the outer cylinder 10 of the fan. The mounting bracket 15 can be fixed to the lower bracket to achieve a supporting and fixing function.

[0021] Furthermore, the radially extending connecting plate 14 at the front end of the fan outer cylinder 10 is fixedly connected to the rear wall of the rectangular front connecting cover 30 by bolts. The front wall surface of the radially extending connecting plate 14 presses against the rear wall surface of the rear wall of the front connecting cover 30. The through hole in the middle of the rear wall of the front connecting cover 30 communicates with and corresponds to the air inlet at the front end of the fan outer cylinder 10.

[0022] A rectangular sleeve portion 31 is formed or welded to the edge of the front side wall of the rear wall panel of the front connecting cover 30. A sealing elastic layer 32 is fixed to the inner side wall of the rectangular sleeve portion 31 and the front wall surface of the rear wall panel.

[0023] In this embodiment, the front connecting cover 30 can be inserted into the rear end of the housing of the exhaust gas treatment equipment in front, and the sealing elastic layer 32 of the inner side wall of the rectangular sleeve 31 is pressed against the outer side wall of the rear end of the housing by bolts. At the same time, the front wall surface of the rear wall plate is pressed against the rear end surface of the housing to achieve a sealed connection, so that the gas coming out of the housing enters from the air inlet of the outer cylinder 10 of the fan.

[0024] Furthermore, the radially extending connecting plate 14 at the rear end of the outer cylinder 10 of the fan is fixedly connected to the bent pipe 40 by bolts.

[0025] When in use, if it is necessary to inspect or repair or replace the drive motor 20 and impeller 21 inside the outer casing 10 of the fan, all fixing bolts 25 can be removed, and the arc-shaped flip plate 22 can be opened to inspect or repair the drive motor 20 and impeller 21 inside. This is very convenient. The inspection through slot 12 is larger than the drive motor 20 and impeller 21. Therefore, the drive motor 20 and impeller 21 inside can be disassembled without disassembling the outer casing 10 of the fan, making maintenance very convenient.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A large environmental protection exhaust gas treatment equipment with exhaust smoke axial flow fan device, comprising a fan outer cylinder (10), characterized in that: The inner side wall of the left side plate of the fan outer cylinder (10) is fixed with a motor bracket (11), the motor bracket (11) is fixed with a driving motor (20), and the output shaft of the driving motor (20) is fixed with an impeller (21); The right side wall plate of the fan outer cylinder (10) is formed with an inspection through slot (12) facing the driving motor (20) and the impeller (21), the outer side wall of the right side wall plate of the fan outer cylinder (10) is covered with an arc-shaped turnover plate (22), the arc-shaped turnover plate (22) covers the inspection through slot (12), the front and rear parts of the lower part of the arc-shaped turnover plate (22) are movably connected to the fan outer cylinder (10) through hinge shafts, the outer side wall of the upper part of the arc-shaped turnover plate (22) is fixed with a connecting strip (23), the front, middle and rear parts of the left end of the connecting strip (23) are formed with through holes, the top surface of the fan outer cylinder (10) at the left end of the connecting strip (23) is fixed with a connecting block (24), the threaded part of a fixing bolt (25) is inserted into the corresponding through hole and screwed into the screwing through hole of the corresponding connecting block (24), and the bottom surface of the left end of the connecting strip (23) is pressed against the outer wall surface of all the connecting blocks (24).

2. A kind of large environmental protection exhaust treatment equipment with the exhaust fan device of smoke discharge according to claim 1, it is characterized by: The inner wall surface of the arc-shaped turnover plate (22) is fixed with a sound-absorbing cotton block (26), and the sound-absorbing cotton block (26) fills the entire inspection through slot (12).

3. A kind of large environmental protection exhaust treatment equipment with the exhaust fan device of smoke, it is characterized in that according to claim 1: The inner side wall of the fan outer cylinder (10) is fixed with a sound-absorbing cotton layer (13).

4. A large environmental protection exhaust gas treatment equipment smoke exhaust axial flow fan device according to claim 1, characterized in that: The front and rear end faces of the arc-shaped turnover plate (22) are both fixed with an elastic sealing layer (1), and the elastic sealing layer (1) is tightly attached to the inner end face of the radially extending connecting plate (14) formed on the front and rear ends of the fan outer cylinder (10).

5. The exhaust air axial fan device according to claim 1, characterized in that: The bottom surface of the bottom wall plate of the fan outer cylinder (10) is fixed with a mounting connecting seat (15).

6. A large environmental protection exhaust gas treatment equipment smoke exhaust axial flow fan device according to claim 1, characterized in that: The radially extending connecting plate (14) at the front end of the fan outer cylinder (10) is fixedly connected to the rear wall plate of the rear wall plate of the rectangular front connecting cover body (30) through bolts, the front wall surface of the radially extending connecting plate (14) is pressed against the rear wall surface of the rear wall plate of the front connecting cover body (30), and the middle through hole of the rear wall plate of the front connecting cover body (30) is communicated with the air inlet at the front end of the fan outer cylinder (10) and corresponds to the air inlet.

7. A large environmental protection exhaust gas treatment equipment smoke exhaust axial flow fan device according to claim 6, characterized in that: The edge part of the front side wall of the rear wall plate of the front connecting cover body (30) is formed or welded with a rectangular sleeve body part (31), and the inner side wall and the front wall surface of the rear wall plate of the rectangular sleeve body part (31) are both fixed with a sealing elastic layer (32).

8. A large environmental protection exhaust gas treatment equipment smoke exhaust axial flow fan device according to claim 1, characterized in that: The radially extending connecting plate (14) at the rear end of the fan outer cylinder (10) is fixedly connected with an elbow pipe (40) through bolts.

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