Foamed ceramic wire mesh demister with limiting and assembling functions

Abstract

The invention discloses a foamed ceramic wire mesh demister with a limiting assembly function, and relates to the technical field of wire mesh demisters, the foamed ceramic wire mesh demister comprises an outer frame and a supporting block, a connecting frame is arranged in the outer frame, a foamed ceramic wire mesh body is fixed in the connecting frame, and a handle is arranged at the top of the connecting frame. According to the foamed ceramic wire mesh demister with the limiting and assembling functions, a handle is pulled to drive a connecting frame to move to the top of an outer frame, at the moment, under the weight of the connecting frame and a foamed ceramic wire mesh body, a connecting rod a can rotate and unfold, and a sliding rod is pulled to drive a limiting block a to retract into a supporting block; after butt joint is completed, the supporting block can make contact with the plane of the bottom of the positioning groove, supporting of the connecting frame and the foamed ceramic silk screen body is completed, at the moment, the handle is loosened, the spring a can reset, the sliding rod is pushed to drive the limiting block a to move, the limiting block a is clamped with the outer frame, and rapid splicing of the foamed ceramic silk screen body is completed.

Description

Technical Field

[0001] The invention relates to the technical field of wire mesh demisters, in particular to a foam ceramic wire mesh demister with a limited position assembling function. Background Art

[0002] In the chemical, petroleum and other industries, demisters are mainly used for gas-liquid separation in distillation towers, absorption towers and other separation towers in the above industries. Their function is to remove droplets entrained in the secondary steam that continues to rise after the exchange of gas and liquid medium layers, to prevent the loss of useful products or pollution, to ensure mass transfer efficiency, reduce the loss of valuable materials, improve the operation of the compressor after the tower, reduce water content, and extend the life of the compressor. Generally, demisters are installed at the top of the tower.

[0003] For example, a wire mesh demister with publication number CN221333188U is provided with a snap block and a card box slot. When the wire mesh demister mechanism needs to be disassembled and replaced, the operator manually pulls the pressure plate outward and rotates the wire mesh demister mechanism at the same time to make the snap block slide into the channel of the snap slot, and then pushes the pressure plate inward to make the push plate squeeze the snap block toward the support ring, and the support spring contracts until the snap block and the support spring contract between the demister housing and the wire mesh demister mechanism, and then pulls the wire mesh demister mechanism outward to take it out, so that the wire mesh demister mechanism can be replaced separately.

[0004] When the above scheme is used to disassemble the wire mesh in the wire mesh demister, it is necessary to first pull the pressure plate to disengage it from the limit of the wire mesh outer frame, then rotate the locking block to disengage the locking groove, and then take out the wire mesh as a whole to complete the disassembly of the wire mesh. The above operations need to be repeated during installation. However, this method of disassembling and assembling the wire mesh is relatively cumbersome, as it is necessary to pull the pressure plate to move it while rotating the wire mesh, which makes it difficult to quickly disassemble and assemble the wire mesh demister. Summary of the invention

[0005] The object of the present invention is to provide a foam ceramic wire mesh demister with a limited position assembly function, so as to solve the problem that the existing wire mesh demister is difficult to quickly disassemble and assemble as mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a foam ceramic wire mesh demister with limited position assembly function, comprising an outer frame and a support block, a connecting frame is arranged inside the outer frame, a foam ceramic wire mesh body is fixed inside the connecting frame,

[0007] A handle is provided on the top of the connecting frame, and the handle is movably connected with a connecting rod a around a rotating shaft, one end of the connecting rod a is movably connected with a sliding rod through a rotating shaft, the outer side of the sliding rod is slidably connected with a fixed block, the middle part of the sliding rod is sleeved with a spring a, the outer side of the connecting frame is fixedly connected with a supporting block, the inner part of the supporting block is slidably connected with a limiting block a, and one end of the limiting block a is movably connected to the sliding rod through a rotating shaft.

[0008] Preferably, the bottom of the fixed block is fixedly connected to the connecting frame, one end of the spring a is connected to the fixed block, a ball is rollingly connected to the outer side of the limit block a, and the ball is rollingly connected to the support block.

[0009] Preferably, a mounting frame is fixedly connected to the inside of the outer frame, a motor is installed on the top of the mounting frame, and a bevel gear a is fixedly connected to the output end of the motor.

[0010] Preferably, one end of the bevel gear a is fixedly connected to a disc via a transmission rod, one side of the disc is movably connected to a connecting rod b via a rotating shaft, one end of the connecting rod b is movably connected to a connecting disc via a rotating shaft, and a discharge groove is provided in the middle of the connecting disc.

[0011] Preferably, a plurality of groups of rectangular grooves are provided inside the connection disk, and the plurality of groups of rectangular grooves are distributed at equal angles with respect to the central axis of the connection disk, and a rotating plate is movably connected to the inner side of the rectangular groove via a rotating shaft.

[0012] Preferably, a side of the connection disk close to the motor is fixedly connected to a limiting block b, a plurality of groups of connection blocks are fixedly connected to the outer side of the connection disk, and the interior of the connection block is slidably connected to a limiting rod.

[0013] Preferably, both ends of the limit rod are fixedly connected to the outer frame, one side of the top of the connection block is fixedly connected to a toggle rod, and one side of the toggle rod is provided with a knocking rod.

[0014] Preferably, the middle part of the knocking rod is movably connected to the outer frame through a rotating shaft, a rubber block is fixedly connected to one side of the top of the knocking rod, and a spring b is fixedly connected to the other side of the knocking rod, and one end of the spring b is fixedly connected to the outer frame.

[0015] Preferably, the outer side of the bevel gear a is meshedly connected with a bevel gear b, the bottom of the bevel gear b is fixedly connected with a driving gear, the outer side of the driving gear is meshedly connected with a driven gear, and one side of the driving gear is movably connected to the mounting frame through a rotating shaft.

[0016] Preferably, the bottom of the driven gear is fixedly connected to a rotating sleeve, the inner side of the rotating sleeve is fixedly connected to a flow equalizing plate, a plurality of groups of flow equalizing holes are provided inside the flow equalizing plate, and the plurality of groups of flow equalizing holes are equidistantly distributed, and the bottom of the rotating sleeve is movably connected to the bracket on the inner side of the outer frame through a rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The foam ceramic wire mesh demister with limited position assembly function, when assembling the foam ceramic wire mesh body and the connecting frame into the outer frame, the connecting frame is driven to move to the top of the outer frame by pulling the handle. At this time, under the weight of the connecting frame and the foam ceramic wire mesh body, the connecting rod a will rotate and unfold, and pull the slide bar to drive the limit block a to retract into the inside of the support block. After the docking is completed, the support block can contact the plane at the bottom of the positioning groove to complete the support of the connecting frame and the foam ceramic wire mesh body. At this time, release the handle, the spring a will reset, and push the slide bar to drive the limit block a to move, so that the limit block a is engaged with the outer frame to complete the rapid assembly of the foam ceramic wire mesh body. In this way, the above operation can simplify the installation steps of the foam ceramic wire mesh body, thereby quickly performing limited position assembly of the foam ceramic wire mesh body.

[0019] 2. When separating the entrained liquid in the gas, in order to improve the separation efficiency, the foam ceramic wire mesh demister with limited position assembly function drives the bevel gear a and the disc to rotate by starting the motor. When the disc rotates, it will turn the connecting rod b to rotate, thereby driving the top connecting disc to move up and down reciprocatingly. When the connecting disc moves, the multiple groups of connecting blocks on the outside will slide on the outside of the limit rod, thereby guiding and limiting the connecting disc. When the connecting disc moves downward, the airflow rising from the bottom and the airflow contacted by the surface when the rotating plate moves will cause the rotating plate to rotate and open, and the limit block b The rotation angle of the rotating plate will be restricted to prevent the rotating plate from rotating to a vertical state. At this time, the rising airflow from the bottom will pass through the connecting plate through the rectangular groove and enter the foam ceramic wire mesh body to start gas-liquid separation. When the connecting plate moves up, the top of the rotating plate will contact the airflow, thereby rotating to close the rectangular groove. At this time, the top of the rotating plate will be completely closed, and the incoming gas will be pressurized when moving up, so that it can quickly enter the foam ceramic wire mesh body and accelerate the separation efficiency. The above operation can improve the separation efficiency of the wire mesh demister.

[0020] 3. For the foam ceramic wire mesh demister with limited position assembly function, when the connecting plate moves up and down, the motor will mesh with the bevel gear b through the bevel gear a, so that the bevel gear b drives the driving gear to mesh with the driven gear, and the rotating sleeve at the bottom of the driven gear rotates. When the rotating sleeve rotates, the passing gas can be transported through the internal blade-shaped flow equalizing plate, so that it can quickly rise and enter the foam ceramic wire mesh body, thereby accelerating the separation speed. In this way, the above operation can assist the foam ceramic wire mesh body to separate the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the present invention;

[0023] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the connection disk of the present invention;

[0024] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the connecting frame of the present invention;

[0025] Figure 5 This is a three-dimensional schematic diagram of the top of the connection plate of the present invention;

[0026] Figure 6 This is a three-dimensional schematic diagram of the bottom of the connection plate of the present invention;

[0027] Figure 7 It is a three-dimensional schematic diagram of the current equalizing plate of the present invention.

[0028] In the figure: 1. outer frame; 2. connecting frame; 3. foam ceramic wire mesh body; 4. handle; 5. connecting rod a; 6. sliding rod; 7. fixing block; 8. spring a; 9. supporting block; 10. limiting block a; 11. mounting frame; 12. motor; 13. bevel gear a; 14. disc; 15. connecting rod b; 16. connecting disc; 17. rotating plate; 18. limiting block b; 19. connecting block; 20. limiting rod; 21. toggle rod; 22. knocking rod; 23. rubber block; 24. spring b; 25. bevel gear b; 26. driving gear; 27. driven gear; 28. rotating sleeve; 29. ​​flow balancing plate; 30. flow balancing hole; 31. discharge groove. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 4 The present invention provides a technical solution: a foam ceramic wire mesh demister with limited position assembly function, comprising an outer frame 1 and a support block 9, a connecting frame 2 is arranged inside the outer frame 1, and a foam ceramic wire mesh body 3 is fixed inside the connecting frame 2,

[0031] A handle 4 is provided on the top of the connecting frame 2, and a connecting rod a5 is movably connected to the handle 4 around the handle 4 through a rotating shaft, one end of the connecting rod a5 is movably connected to a sliding rod 6 through a rotating shaft, the outer side of the sliding rod 6 is slidably connected to a fixed block 7, and the middle part of the sliding rod 6 is sleeved with a spring a8, the outer side of the connecting frame 2 is fixedly connected to a support block 9, the inner side of the support block 9 is slidably connected to a limit block a10, and one end of the limit block a10 is movably connected to the sliding rod 6 through a rotating shaft; the bottom of the fixed block 7 is fixedly connected to the connecting frame 2, and one end of the spring a8 is connected to the fixed block 7 A ball is rollingly connected to the outer side of the limit block a10, and the ball is rollingly connected to the support block 9, a limit groove is provided on the inner side of the outer frame 1, and the limit groove is snap-fitted and connected to the limit block a10, a through groove is provided inside the fixed block 7, and the through groove is slidingly connected to the slide rod 6, a sliding groove is provided inside the support block 9, and the sliding groove is slidingly connected to the limit block a10, a positioning groove is provided on the top of the outer frame 1, and the positioning groove is slidingly connected to the support block 9, the limit block a10 and the support block 9 constitute a sliding structure, and the limit block a10 and the outer frame 1 constitute a snap-fit ​​structure.

[0032] During specific implementation, the foam ceramic wire mesh demister with limited position assembly function, when assembling the foam ceramic wire mesh body 3 and the connecting frame 2 into the outer frame 1, the connecting frame 2 is driven to move to the top of the outer frame 1 by pulling the handle 4. At this time, under the weight of the connecting frame 2 and the foam ceramic wire mesh body 3, the connecting rod a5 will rotate and unfold, and pull the sliding rod 6 to squeeze the spring a8 inside the fixed block 7, and the sliding rod 6 can pull the limiting block a10 back to the inside of the supporting block 9, and connect the supporting block 9 on the outside of the connecting frame 2 with the positioning groove at the top of the outer frame 1. After the docking is completed, the supporting block 9 can contact with the plane at the bottom of the positioning groove to complete the support of the connecting frame 2 and the foam ceramic wire mesh body 3. At this time, release the handle 4, the spring a8 will reset, and push the sliding rod 6 to drive the limiting block a10 to move, so that the limiting block a10 is engaged with the outer frame 1, and the rapid assembly of the foam ceramic wire mesh body 3 is completed;

[0033] When the foam ceramic wire mesh body 3 needs to be disassembled, the handle 4 is pulled upward. At this time, since the limit block a10 and the outer frame 1 are in an engaged state, the connecting frame 2 will not move, but the limit block a10 will move first and disengage from the outer frame 1. Then the handle 4 can drive the connecting frame 2 and the foam ceramic wire mesh body 3 to move upward, and the foam ceramic wire mesh body 3 can be quickly disassembled and disconnected from the outer frame 1. When the limit block a10 slides in the outer frame 1 and the support block 9, it will contact the two through the ball bearings, thereby reducing the friction during movement. In this way, the installation steps of the foam ceramic wire mesh body 3 can be simplified through the above operation, so that the foam ceramic wire mesh body 3 can be quickly limited and assembled.

[0034] See also Figure 3-Figure 6 The outer frame 1 is fixedly connected to a mounting frame 11, a motor 12 is installed on the top of the mounting frame 11, and a bevel gear a13 is fixedly connected to the output end of the motor 12; one end of the bevel gear a13 is fixedly connected to a disc 14 through a transmission rod, one side of the disc 14 is movably connected to a connecting rod b15 through a rotating shaft, one end of the connecting rod b15 is movably connected to a connecting disc 16 through a rotating shaft, and a discharge groove 31 is provided in the middle of the connecting disc 16; a plurality of groups of rectangular grooves are provided inside the connecting disc 16, and the plurality of groups of rectangular grooves are distributed at equal angles with respect to the central axis of the connecting disc 16, and a rotating plate 17 is movably connected to the inner side of the rectangular groove through a rotating shaft; a side of the connecting disc 16 close to the motor 12 is fixedly connected to a limited block b18, and a plurality of groups of connecting Block 19, the internal sliding connection of the connecting block 19 is provided with a limiting rod 20; both ends of the limiting rod 20 are fixedly connected to the outer frame 1, a toggle rod 21 is fixedly connected to one side of the top of the connecting block 19, and a knocking rod 22 is arranged on one side of the toggle rod 21; the middle part of the knocking rod 22 is movably connected to the outer frame 1 through a rotating shaft, a rubber block 23 is fixedly connected to one side of the top of the knocking rod 22, and a spring b24 is fixedly connected to the other side of the knocking rod 22, one end of the spring b24 is fixedly connected to the outer frame 1, a through hole matching the limiting rod 20 is provided inside the connecting block 19, a rotating groove is provided inside the outer frame 1, and the rotating groove is slidably connected to the knocking rod 22, the knocking rod 22 forms a rotating structure with the outer frame 1 through the rotating shaft, and the connecting block 19 and the limiting rod 20 form a sliding structure.

[0035] In specific implementation, the foam ceramic wire mesh demister with limited position assembly function, when separating the entrained liquid in the gas, in order to improve the separation efficiency, starts the motor 12 to drive the bevel gear a13 and the disc 14 to rotate, and when the disc 14 rotates, it will turn the connecting rod b15 to rotate, thereby driving the top connecting disc 16 to move up and down reciprocatingly, and when the connecting disc 16 moves, the multiple groups of connecting blocks 19 on the outside will slide on the outside of the limiting rod 20, thereby guiding and limiting the connecting disc 16, and the airflow rising from the bottom when the connecting disc 16 moves downward and the airflow contacted by the surface when the rotating plate 17 moves The rotating plate 17 will be pushed to rotate and open, and the limit block b18 will limit the rotation angle of the rotating plate 17 to prevent the rotating plate 17 from rotating to a vertical state. At this time, the rising airflow at the bottom will pass through the rectangular groove through the connecting plate 16 and enter the foam ceramic wire mesh body 3 to start gas-liquid separation. When the connecting plate 16 moves up, the top of the rotating plate 17 will contact the airflow, thereby rotating to close the rectangular groove. At this time, the top of the rotating plate 17 will be completely closed, and the incoming gas will be pressurized when moving up, so that it can quickly enter the foam ceramic wire mesh body 3, thereby accelerating the separation efficiency.

[0036] At the same time, when the connecting plate 16 moves up, the connecting blocks 19 around it will also drive the toggle rod 21 to move up. When the toggle rod 21 moves, the arc on the top side will contact the arc on the side of the knocking rod 22, thereby squeezing the knocking rod 22 to make it rotate. When the knocking rod 22 rotates, it will squeeze the spring b24 on the top side. When the connecting plate 16 moves down, it will drive the toggle rod 21 to toggle the knocking rod 22 again. At this time, when the toggle rod 21 is separated from the toggle of the knocking rod 22, the spring b24 will return to the original position. The knocking rod 22 and the rubber block 23 are pushed toward the outer wall of the connecting frame 2, and the connecting frame 2 is knocked to vibrate the connecting frame 2 and the foam ceramic wire mesh body 3, so that the liquid separated from the foam ceramic wire mesh body 3 is quickly discharged, and the falling liquid will enter the conical connecting disk 16 and gather in the middle of the connecting disk 16, and be quickly discharged through the discharge groove 31. At the same time, the liquid can also be discharged through the opened rectangular groove. The separation efficiency of the wire mesh demister can be improved through the above operation.

[0037] See also Figure 4 and Figure 7The outer side of the bevel gear a13 is meshedly connected with a bevel gear b25, the bottom of the bevel gear b25 is fixedly connected with a driving gear 26, the outer side of the driving gear 26 is meshedly connected with a driven gear 27, and one side of the driving gear 26 is movably connected to the mounting frame 11 through a rotating shaft; the bottom of the driven gear 27 is fixedly connected with a rotating sleeve 28, the inner side of the rotating sleeve 28 is fixedly connected with a flow equalizing plate 29, and the interior of the flow equalizing plate 29 is provided with multiple groups of flow equalizing holes 30, and the multiple groups of flow equalizing holes 30 are equidistantly distributed, the bottom of the rotating sleeve 28 is movably connected to the bracket on the inner side of the outer frame 1 through a rotating shaft, and the driving gear 26 and the driven gear 27 form a meshing transmission structure.

[0038] During specific implementation, in the foam ceramic wire mesh demister with limited position assembly function, when the connecting plate 16 moves up and down, the motor 12 will mesh with the bevel gear b25 through the bevel gear a13, so that the bevel gear b25 drives the driving gear 26 to mesh with the driven gear 27, so that the rotating sleeve 28 at the bottom of the driven gear 27 rotates. When the rotating sleeve 28 rotates, the passing gas can be transported through the internal blade-shaped flow equalizing plate 29, so that it can quickly rise and enter the foam ceramic wire mesh body 3, thereby accelerating the separation speed. At the same time, the multiple groups of flow equalizing holes 30 inside the flow equalizing plate 29 will disperse the passing gas, so that it is evenly distributed in the outer frame 1 and evenly enters the foam ceramic wire mesh body 3, thereby improving the utilization rate of the foam ceramic wire mesh body 3. In this way, the above-mentioned operation can assist the foam ceramic wire mesh body 3 to separate the gas.

[0039] In summary, the foam ceramic wire mesh body 3 in the outer frame 1 can separate the passing gas, and the mist droplets will hit the staggered wire mesh and be adsorbed. These mist droplets will aggregate into larger droplets at the bottom of the wire mesh, and will return to the tower body after dripping, and the separated gas will be discharged. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foam ceramic wire mesh demister with limited position assembly function, comprising an outer frame (1) and a support block (9), wherein a connecting frame (2) is arranged inside the outer frame (1), and a foam ceramic wire mesh body (3) is fixed inside the connecting frame (2), characterized in that: A handle (4) is provided on the top of the connecting frame (2), and the handle (4) is movably connected to a connecting rod a (5) around the handle via a rotating shaft, one end of the connecting rod a (5) is movably connected to a sliding rod (6) via a rotating shaft, the outer side of the sliding rod (6) is slidably connected to a fixed block (7), the middle part of the sliding rod (6) is sleeved with a spring a (8), the outer side of the connecting frame (2) is fixedly connected to a supporting block (9), the inner part of the supporting block (9) is slidably connected to a limiting block a (10), and one end of the limiting block a (10) is movably connected to the sliding rod (6) via a rotating shaft.

2. The foam ceramic wire mesh demister with limited position assembly function according to claim 1, characterized in that: The bottom of the fixed block (7) is fixedly connected to the connecting frame (2), one end of the spring a (8) is connected to the fixed block (7), and a ball is rollingly connected to the outer side of the limit block a (10), and the ball is rollingly connected to the support block (9).

3. The foam ceramic wire mesh demister with limited position assembly function according to claim 1, characterized in that: A mounting frame (11) is fixedly connected inside the outer frame (1), a motor (12) is installed on the top of the mounting frame (11), and a bevel gear a (13) is fixedly connected to the output end of the motor (12).

4. The foam ceramic wire mesh demister with limited position assembly function according to claim 3, characterized in that: One end of the bevel gear a (13) is fixedly connected to a disc (14) via a transmission rod, one side of the disc (14) is movably connected to a connecting rod b (15) via a rotating shaft, one end of the connecting rod b (15) is movably connected to a connecting disc (16) via a rotating shaft, and a discharge groove (31) is provided in the middle of the connecting disc (16).

5. The foam ceramic wire mesh demister with limited position assembly function according to claim 4, characterized in that: The connection disk (16) has a plurality of rectangular grooves formed inside thereof, and the plurality of rectangular grooves are distributed at equal angles with respect to the central axis of the connection disk (16), and a rotating plate (17) is movably connected to the inner side of the rectangular groove via a rotating shaft.

6. The foam ceramic wire mesh demister with limited position assembly function according to claim 5, characterized in that: A side of the connection disk (16) close to the motor (12) is fixedly connected to a limiting block b (18), the outer side of the connection disk (16) is fixedly connected to a plurality of groups of connection blocks (19), and the interior of the connection block (19) is slidably connected to a limiting rod (20).

7. The foam ceramic wire mesh demister with limited position assembly function according to claim 6, characterized in that: Both ends of the limit rod (20) are fixedly connected to the outer frame (1); one side of the top of the connection block (19) is fixedly connected to a toggle rod (21); and a knocking rod (22) is provided on one side of the toggle rod (21).

8. The foam ceramic wire mesh demister with limited position assembly function according to claim 7, characterized in that: The middle part of the knocking rod (22) is movably connected to the outer frame (1) via a rotating shaft, one side of the top of the knocking rod (22) is fixedly connected to a rubber block (23), the other side of the knocking rod (22) is fixedly connected to a spring b (24), and one end of the spring b (24) is fixedly connected to the outer frame (1).

9. The foam ceramic wire mesh demister with limited position assembly function according to claim 3, characterized in that: The outer side of the bevel gear a (13) is meshedly connected with a bevel gear b (25), the bottom of the bevel gear b (25) is fixedly connected with a driving gear (26), the outer side of the driving gear (26) is meshedly connected with a driven gear (27), and one side of the driving gear (26) is movably connected to the mounting frame (11) via a rotating shaft.

10. The foam ceramic wire mesh demister with limited position assembly function according to claim 9, characterized in that: The bottom of the driven gear (27) is fixedly connected to a rotating sleeve (28), the inner side of the rotating sleeve (28) is fixedly connected to a flow equalizing plate (29), the inner side of the flow equalizing plate (29) is provided with a plurality of groups of flow equalizing holes (30), and the plurality of groups of flow equalizing holes (30) are equidistantly distributed, and the bottom of the rotating sleeve (28) is movably connected to a bracket on the inner side of the outer frame (1) via a rotating shaft.

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