Filter paper structure of magnetic suspension high-speed centrifugal blower

Abstract

The utility model discloses a filter paper structure of a magnetic suspension high-speed centrifugal blower, which belongs to the technical field of blowers and is characterized in that the magnetic suspension high-speed centrifugal blower is arranged in an outer blower box, a connecting frame is arranged at the air inlet end of the outer blower box, a limiting groove is formed in the surface of the connecting frame, and an inner filter screen is arranged in the middle of the limiting groove; according to the filter paper structure of the magnetic suspension high-speed centrifugal blower, through the arrangement of an extrusion plate and an extrusion pad, the surface of filter paper can be extruded and sealed through the extrusion force of the extrusion pad and the inner wall of the limiting groove, and the situation that air entering an outer box of the blower bypasses the filter paper and enters the filter paper is avoided; and through the arrangement of an electromagnetic adsorption disc and an iron extrusion plate, fixation through electromagnetic adsorption force is facilitated, rapid disassembly and assembly of the extrusion plate are facilitated, and therefore the filter paper cannot be scraped, abraded and damaged with a filter screen in the moving process.

Description

Technical Field

[0001] The utility model relates to the technical field of blowers, and more specifically to a filter paper structure of a magnetic suspension high-speed centrifugal blower. Background Art

[0002] The magnetic levitation blower is a high-tech, energy-saving and environmentally friendly gas transmission equipment. It adopts core technologies such as magnetic levitation bearings, three-dimensional flow impellers, high-speed permanent magnet synchronous motors, high-efficiency inverter speed regulation, and intelligent monitoring and control. During the operation of the magnetic levitation blower, filter paper is required to filter the incoming air. However, when the filter paper is used for filtering, the surface is not sealed with the air inlet end, which will lead to filtration failure, and the filter paper is easily scratched and damaged when it is moved and replaced.

[0003] For example, announcement No. CN215762481U discloses an automatic filter paper replacement device for a magnetically levitated high-speed centrifugal blower, which includes a blower body, an outer box is provided on the outside of the blower body, an inner filter screen is embedded on one side wall of the outer box, and a detachable outer filter plate is installed, a filter paper groove is formed between the outer filter plate and the inner filter screen, and filter paper rollers that can rotate automatically are provided on the top and bottom of the outer box.

[0004] It can be seen from the above-mentioned public scheme that the filter paper is between the inner filter screen and the outer filter screen, and is not squeezed and sealed with the air inlet port, which will cause the incoming air to pass through the gap around the filter paper and enter the outer box, thereby causing filtration failure. In addition, when the filter paper between the inner filter screen and the outer filter screen is moved and replaced, due to the limited size of the filter paper slot, it is easy to rub and scratch the surface of the inner filter screen and the outer filter screen, causing damage. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a filter paper structure of a magnetic levitation high-speed centrifugal blower. The filter paper structure of the magnetic levitation high-speed centrifugal blower can squeeze and seal the surface of the filter paper through the extrusion force of the extrusion pad and the inner wall of the limit groove by means of the arranged extrusion plate and extrusion pad, so as to prevent the air entering the outer box of the blower from entering around the filter paper and causing filtering failure, thereby ensuring the filtering stability of the filter paper, and through the arranged electromagnetic adsorption disk and iron extrusion plate, it is convenient to fix the filter paper through the electromagnetic adsorption force, and the extrusion plate is convenient to quickly disassemble and combine, so that the filter paper will not be scratched and damaged by the filter screen during movement.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A filter paper structure of a magnetic levitation high-speed centrifugal blower comprises an outer box of the blower, wherein the inner part of the outer box of the blower is provided with a connecting frame, the surface of the connecting frame is provided with a limiting groove, the middle position of the limiting groove is provided with an inner filter screen, the inner wall of the limiting groove is fixedly sleeved with a symmetrical adsorption disk, the surface of the adsorption disk is adsorbed and fixed with an extrusion plate by electromagnetic adsorption force, the middle position of the extrusion plate is provided with an outer filter screen, the inner side surface of the extrusion plate is fixedly connected with an extrusion pad, the two sides of the connecting frame are respectively fixedly connected with a discharge drum and a winding drum, one end of the discharge drum is connected with a drum cover by a thread, the middle position of the drum cover is rotatably connected with a rotating shaft by a sealing bearing, and the surface of the rotating shaft is detachable and connected A filter paper roller is connected, and both ends of the filter paper roller are contacted and extruded with symmetrical limit plates, the surface of the filter paper roller is wrapped with filter paper, one end of the rotating shaft is plugged with a connecting block, the surface of the connecting block is fixedly sleeved with a bearing, and one end of the rotating shaft is provided with a knob. The filter paper structure of the magnetic levitation high-speed centrifugal blower can squeeze and seal the surface of the filter paper through the extrusion plate and extrusion pad, and the extrusion force between the extrusion pad and the inner wall of the limit groove can be used to prevent the air entering the outer box of the blower from entering around the filter paper and causing filtering failure, thereby ensuring the filtering stability of the filter paper, and the electromagnetic adsorption disk and the iron extrusion plate can be set to facilitate fixing through electromagnetic adsorption force, and facilitate the rapid disassembly and assembly of the extrusion plate, so that the filter paper will not be scraped and damaged by the filter screen during movement.

[0008] Furthermore, a symmetrical first sealing gasket is fixedly connected to the inner wall of the limiting groove, the surface of the first sealing gasket contacts and is extruded with the surface of the extrusion plate, and a symmetrical second sealing gasket is fixedly connected to the side of the extrusion plate. The first sealing gasket and the second sealing gasket can seal the four sides of the extrusion plate.

[0009] Furthermore, a side hole is provided on the side of the unwinding drum, a storage hole with the same position and size as the side hole is provided on the side of the winding drum, and a through hole connected to the side hole and the storage hole is provided on the inner wall of the side of the limiting groove to facilitate the winding, unwinding and movement of the filter paper.

[0010] Furthermore, the squeeze pad is frame-shaped and is made of elastic sealing rubber. The surface of the squeeze pad contacts and squeezes the surface of the filter paper, so that the filter paper can be squeezed outside the air inlet of the blower outer box, thereby preventing unfiltered air from entering.

[0011] Furthermore, the second sealing gasket and the first sealing gasket are both made of corrosion-resistant sealing rubber, and the surface of the second sealing gasket is in contact and extrusion with the inner wall of the limiting groove, thereby having a sealing function.

[0012] Furthermore, the area size of the inner filter is the same as the air inlet area of ​​the blower outer box, and the area size of the inner filter and the outer filter are the same, thereby ensuring the entry area.

[0013] Furthermore, a polygonal inserting hole is provided at the center of the bearing, and a polygonal clamping block is provided at one end of the rotating shaft to facilitate the installation and rotation of the rotating shaft.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In this scheme, by providing an extrusion plate and an extrusion pad, the surface of the filter paper can be squeezed and sealed through the extrusion force between the extrusion pad and the inner wall of the limiting groove, thereby preventing the air entering the blower outer box from bypassing the filter paper and causing filtering failure, thereby ensuring the filtering stability of the filter paper.

[0016] (2) The electromagnetic adsorption plate and the iron extrusion plate provided in this solution facilitate fixation by electromagnetic adsorption force, and facilitate rapid disassembly and assembly of the extrusion plate, so that the filter paper will not be scraped and damaged by the filter screen during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the unwinding drum structure of the utility model;

[0019] Figure 3 This is a rear view of the extruded plate structure of the utility model;

[0020] Figure 4 It is a top view of the connection block and the rotating shaft installation structure of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1 blower outer box, 2 connection frame, 21 limit groove, 22 adsorption plate, 23 inner filter, 24 first sealing gasket, 3 extrusion plate, 31 outer filter, 32 second sealing gasket, 33 extrusion pad, 4 unwinding drum, 41 connection block, 42 ​​bearing, 43 rotating shaft, 44 knob, 45 sealing bearing, 46 drum cover, 47 side hole, 5 filter paper roller, 51 limit plate, 52 filter paper, 6 winding drum. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-4 A filter paper structure of a magnetic levitation high-speed centrifugal blower comprises a blower outer box 1, a magnetic levitation high-speed centrifugal blower is arranged inside the blower outer box 1, a connecting frame 2 is arranged at the air inlet end of the blower outer box 1, a limiting groove 21 is arranged on the surface of the connecting frame 2, an inner filter screen 23 is arranged in the middle position of the limiting groove 21, a symmetrical adsorption disk 22 is fixedly sleeved on the inner wall of the limiting groove 21, the adsorption disk 22 is an electromagnetic adsorption disk, and has the function of electromagnetic adsorption after power is turned on, an extrusion plate 3 is adsorbed and fixed on the surface of the adsorption disk 22 by electromagnetic adsorption force, the extrusion plate 3 is made of iron material, and can be adsorbed and fixed by the adsorption disk 22, an outer filter screen 31 is arranged in the middle position of the extrusion plate 3, an extrusion pad 33 is fixedly connected to the inner surface of the extrusion plate 3, and the connecting frame 2 is provided with a plurality of filter paper structures. The two sides are respectively fixedly connected with the unwinding drum 4 and the winding drum 6. The winding drum 6 and the unwinding drum 4 have the same composition structure. One end of the unwinding drum 4 is connected with a drum cover 46 by a thread. The drum cover 46 is convenient for the installation and disassembly of the rotating shaft 43, and then convenient for the installation and disassembly of the filter paper roller 5. The middle position of the drum cover 46 is rotatably connected with the rotating shaft 43 through a sealed bearing 45. The surface of the rotating shaft 43 is detachably connected with the filter paper roller 5. The two ends of the filter paper roller 5 are contacted and extruded with symmetrical limit plates 51. The limit plates 51 are threadedly fixed to the rotating shaft 43 to facilitate the disassembly and combination of the rotating shaft 43 and the filter paper roller 5. Filter paper 52 is wound on the surface of the filter paper roller 5. A connecting block 41 is inserted at one end of the rotating shaft 43. A bearing 42 is fixedly sleeved on the surface of the connecting block 41. A knob 44 is provided at one end of the rotating shaft 43.

[0026] A symmetrical first sealing gasket 24 is fixedly connected to the inner wall of the limiting groove 21, and the surface of the first sealing gasket 24 is in contact and extruded with the surface of the extrusion plate 3. A symmetrical second sealing gasket 32 ​​is fixedly connected to the side of the extrusion plate 3. The first sealing gasket 24 and the second sealing gasket 32 ​​can seal the four sides of the extrusion plate 3. A side hole 47 is provided on the side of the unwinding drum 4, and a storage hole with the same position and size as the side hole 47 is provided on the side inner wall of the limiting groove 21. A perforation connected to the side hole 47 and the storage hole is provided to facilitate the winding, unwinding and movement of the filter paper 52. The second sealing gasket 32 ​​and the first sealing gasket 24 are both made of corrosion-resistant sealing rubber. The surface of the second sealing gasket 32 ​​is in contact and extruded with the inner wall of the limiting groove 21, and has a sealing function.

[0027] The squeezing pad 33 is in the shape of a frame and is made of elastic sealing rubber. The surface of the squeezing pad 33 contacts and squeezes the surface of the filter paper 52, so that the filter paper 52 can be squeezed outside the air inlet of the blower outer box 1, thereby preventing unfiltered air from entering. The area size of the inner filter 23 is the same as the air inlet area of ​​the blower outer box 1, and the area size of the inner filter 23 and the outer filter 31 are the same, ensuring the entry area. A polygonal socket is provided at the center of the bearing 42, and a polygonal block is provided at one end of the rotating shaft 43 to facilitate the installation and rotation of the rotating shaft 43.

[0028] When the filter paper 52 of the filter paper structure of the magnetic levitation high-speed centrifugal blower needs to be replaced, the adsorption plate 22 can be powered off first, so that the squeezing plate 3 can be easily removed, and then the knob 44 can be grasped and rotated counterclockwise to make the two filter paper rollers 5 rotate synchronously, one unwinding the filter paper 52 and the other winding the filter paper 52, so that the unfiltered filter paper 52 is moved to the air inlet port position, and then the adsorption plate 22 is powered on to generate electromagnetic adsorption force, so as to adsorb and fix the squeezing plate 3. Under the action of the suction force, the squeezing pad 33 of the squeezing plate 3 and the inner wall of the limiting groove 21 firmly squeeze the surface of the filter paper 52 at the air inlet port position, thereby sealing the connection gap between the filter paper 52, the limiting groove 21 and the squeezing plate 3, so that the air After the air is filtered through the outer filter screen 31, it is then filtered through the filter paper 52, and then enters the air inlet port through the mesh of the inner filter screen 23, and finally enters the inner part of the blower outer box 1. Through the provided extrusion plate 3 and extrusion pad 33, the surface of the filter paper 52 can be squeezed and sealed by the extrusion force of the extrusion pad 33 and the inner wall of the limiting groove 21, so as to prevent the air entering the blower outer box 1 from entering around the filter paper 52 and causing filtering failure, thereby ensuring the filtering stability of the filter paper 52, and through the provided electromagnetic adsorption disk 22 and iron extrusion plate 3, it is convenient to fix it through the electromagnetic adsorption force, and convenient for the quick disassembly and assembly of the extrusion plate 3, so that the filter paper 52 will not be scratched and damaged by the filter screen during movement.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A filter paper structure for a magnetically suspended high-speed centrifugal blower, comprising a blower outer box (1), wherein a magnetically suspended high-speed centrifugal blower is arranged inside the blower outer box (1), characterized in that: The air inlet end of the blower outer box (1) is provided with a connection frame (2), a limit groove (21) is provided on the surface of the connection frame (2), an inner filter screen (23) is provided in the middle of the limit groove (21), a symmetrical adsorption disk (22) is fixedly sleeved on the inner wall of the limit groove (21), an extrusion plate (3) is adsorbed and fixed on the surface of the adsorption disk (22) by electromagnetic adsorption force, an outer filter screen (31) is provided in the middle of the extrusion plate (3), an extrusion pad (33) is fixedly connected to the inner surface of the extrusion plate (3), and an unwinding drum (4) and a reel (5) are respectively fixedly connected on both sides of the connection frame (2). The unwinding drum (6) is provided with a drum cover (46) at one end thereof through a threaded connection, a rotating shaft (43) is rotatably connected to the middle position of the drum cover (46) through a sealing bearing (45), a filter paper roller (5) is detachably connected to the surface of the rotating shaft (43), symmetrical limit plates (51) are contacted and squeezed at both ends of the filter paper roller (5), filter paper (52) is wound around the surface of the filter paper roller (5), a connecting block (41) is inserted at one end of the rotating shaft (43), a bearing (42) is fixedly sleeved on the surface of the connecting block (41), and a knob (44) is provided at one end of the rotating shaft (43).

2. The filter paper structure of a magnetic suspension high-speed centrifugal blower according to claim 1, characterized in that: A symmetrical first sealing gasket (24) is fixedly connected to the inner wall of the limiting groove (21), the surface of the first sealing gasket (24) contacts and extrude the surface of the extrusion plate (3), and a symmetrical second sealing gasket (32) is fixedly connected to the side of the extrusion plate (3).

3. The filter paper structure of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The side surface of the unwinding drum (4) is provided with a side hole (47), the side surface of the winding drum (6) is provided with a storage hole with the same position and size as the side hole (47), and the inner wall of the side surface of the limiting groove (21) is provided with a through hole connected to the side hole (47) and the storage hole.

4. The filter paper structure of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The squeezing pad (33) is in a frame shape and is made of elastic sealing rubber. The surface of the squeezing pad (33) contacts and squeezes the surface of the filter paper (52).

5. The filter paper structure of a magnetically suspended high-speed centrifugal blower according to claim 2, characterized in that: The second sealing gasket (32) and the first sealing gasket (24) are both made of corrosion-resistant sealing rubber, and the surface of the second sealing gasket (32) is in contact with and squeezed against the inner wall of the limiting groove (21).

6. The filter paper structure of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The area size of the inner filter (23) is the same as the area of ​​the air inlet of the blower outer box (1), and the area size of the inner filter (23) and the outer filter (31) are the same.

7. The filter paper structure of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: A polygonal insertion hole is provided at the center of the bearing (42), and a polygonal clamping block is provided at one end of the rotating shaft (43).

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