Air blower DCS control system and magnetic suspension air blower

Abstract

The invention relates to the technical field of air blowers, in particular to an air blower DCS control system and a magnetic suspension air blower. The problem that in the prior art, a blowing fan on an air blower is difficult to clean is solved, and the practicability of equipment is improved. The device structurally comprises a box body, a shell is fixed in the box body, a first air inlet pipe and a first air outlet pipe are arranged on the shell, the first air inlet pipe is rotationally connected with a blowing fan, a vibration sensor is arranged on the side, close to the blowing fan, of the shell, a second air inlet pipe and a cleaning air pump are connected to the first air inlet pipe, and a second air outlet pipe and a dust collection box are connected to the first air outlet pipe. The first air inlet pipe is provided with a first control structure used for controlling the first air inlet pipe to communicate with the second air inlet pipe or controlling the first air inlet pipe to communicate with the cleaning air pump. The design that the blower fan is cleaned by detaching the blower shell in the prior art is replaced, the blower fan is cleaned more conveniently, and practicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of blowers, and in particular to a blower DCS control system and a magnetic suspension blower. Background Art

[0002] A maglev blower is a blower that uses magnetic levitation technology to support and drive the rotor. Unlike traditional mechanical bearings or sliding bearings, magnetic levitation technology allows the rotor to suspend in the air through the action of a magnetic field, thereby eliminating mechanical contact and reducing friction and wear. This type of blower is typically used in applications that require high efficiency, high stability, low noise and long life.

[0003] Since the magnetic levitation blower relies on the blower to drive the air flow to achieve blowing, dust may accumulate on the fan surface after long-term use, affecting the operation of the blower. In order to clean the fan surface, the existing technology is to remove the shell on the blower and clean the fan blades on the blower.

[0004] Although this can achieve the cleaning of the fan blades on the blower, the following problems still exist: due to work needs, some blowers are installed at higher positions for operation. If the blower fan of such blowers is to be cleaned, the operator may need to use a lifting platform or crane for maintenance. Not only is the process cumbersome, but dust accumulation on the blower fan is often difficult to detect at the first time. Summary of the invention

[0005] The present invention provides a blower DCS control system and a magnetic suspension blower, which solves the problem of difficulty in cleaning the blower fan on the blower in the prior art and improves the practicability of the equipment.

[0006] The technical solution of the present invention is as follows:

[0007] A DCS control system for a blower.

[0008] It includes a data acquisition module for collecting temperature, vibration, and flow data and transmitting them to the communication module, including a temperature sensor, a vibration sensor, and a flow sensor;

[0009] A communication module, used for receiving data from the data acquisition module and transmitting the data to the control module;

[0010] The control module is used to receive data from the communication module and transmit execution commands to the drive module;

[0011] Driver module for executing blower speed regulation, start and stop commands

[0012] The human-machine module is used to display the data from the data acquisition module and send control instructions to the control module;

[0013] The safety alarm module is used to monitor abnormal conditions during system operation and send out alarm signals to ensure equipment safety.

[0014] Another object of the present invention is to provide a magnetic suspension blower, using a blower DCS control system, including a box,

[0015] A shell is fixed in the box body, and a first air inlet duct and a first air outlet duct are provided on the shell. The first air inlet duct is rotatably connected to a blower fan, and the vibration sensor is arranged on the shell near the blower fan side. The first air inlet duct is connected to the second air inlet duct and a clean air pump, and the first air outlet duct is connected to the second air outlet duct and a dust collecting box. The first air inlet duct is provided with a first control structure for controlling the first air inlet duct to be connected to the second air inlet duct or to be connected to the clean air pump, and the first air outlet duct is provided with a second control structure for controlling the first air outlet duct to be connected to the second air outlet duct or to be connected to the dust collecting box, and the flow sensor is fixedly arranged on the second air inlet duct.

[0016] Furthermore, the first control structure includes a driving motor, which is fixedly connected to the shell, and a three-way valve is connected to the first air inlet pipe, and the three-way valve is simultaneously connected to the second air inlet pipe and the clean air pump, and an adjusting ball is rotatably connected inside the three-way valve, and a ventilation duct is provided inside the adjusting ball, and the ventilation duct is in a "T"-shaped structure, and the output shaft of the driving motor is fixedly connected to the adjusting ball, and the structure of the second control structure is the same as that of the first control structure.

[0017] Furthermore, a rotating main shaft is provided in the shell, and the blower fan includes a rotating plate, which is fixedly arranged on the rotating main shaft near the first air inlet pipe side, and a plurality of rotating blades are fixed on the rotating plate. A diverter column is fixed at the center of the rotating plate, and the cross-section of the diverter column is a circular structure. The cross-sectional diameter of the diverter column near the rotating blade side is larger than the cross-sectional diameter of the diverter column away from the rotating blade side, and the first air outlet pipe is connected to the side wall of the shell.

[0018] Furthermore, an air outlet is provided in the dust box, a sliding groove is provided on the air outlet, a filter screen is slidably connected in the sliding groove, a limiting spring is fixed at the bottom of the sliding groove, a limiting groove is provided on the inner wall of the sliding groove, a limiting clip is provided on the filter screen, the limiting clip is made of elastic material, the limiting clip is slidably connected to the limiting groove, a limiting clip hole is provided on the limiting groove, and the limiting clip is clamped with the limiting clip hole.

[0019] Furthermore, a first radial suspension bearing and a second radial suspension bearing are fixed in the shell, the rotating main shaft is arranged in the first radial suspension bearing and the second radial suspension bearing, a plurality of connecting rods are fixed in the first radial suspension bearing, each of the connecting rods points to the rotating main shaft, a first coil is wound around each of the connecting rods, and the connecting structure of the second radial suspension bearing is the same as the connecting structure of the first radial suspension bearing.

[0020] Furthermore, a first axial suspension bearing and a second axial suspension bearing are also provided in the shell, the rotating main shaft is arranged in the first axial suspension bearing and the second axial suspension bearing, a fixing piece is fixed between the first axial suspension bearing and the second axial suspension bearing and the shell, a limiting piece is provided between the first axial suspension bearing and the second axial suspension bearing, the limiting piece is fixedly connected to the rotating main shaft, the first axial suspension bearing is a cylindrical structure, the first axial suspension bearing includes a coil box and a sealing cover, the sealing cover is fixed to the coil box by bolts, a second coil is fixed in the coil box, and the first axial suspension bearing has the same structure as the second axial suspension bearing.

[0021] Furthermore, a first safety bearing and a second safety bearing are fixed on both sides of the shell, and the rotating main shaft is arranged in the first safety bearing and the second safety bearing.

[0022] Furthermore, the shell is provided with a heat dissipation port on the side away from the rotating fan blades, a heat dissipation fan is provided in the heat dissipation port, the heat dissipation fan is fixedly connected to the rotating main shaft, and a plurality of heat dissipation holes are provided on the heat dissipation port close to the rotating fan blades and on the end of the heat dissipation port away from the rotating fan blades.

[0023] Furthermore, a magnetic steel sheet is fixed in the shell by bolts, a mounting sleeve is fixed in the magnetic steel sheet, the rotating main shaft is arranged in the mounting sleeve, a plurality of third coils are arranged in the mounting sleeve, each of the third coils is parallel to the rotating main shaft, and the temperature sensor is fixed on the magnetic steel sheet.

[0024] The working principle and beneficial effects of the present invention are:

[0025] The working process of this embodiment is as follows: when a certain amount of dust accumulates on the blower fan, the weight of each position of the fan becomes different due to the effect of the dust, causing the blower fan to vibrate when it is running. At this time, the vibration sensor detects the vibration signal and transmits the vibration signal to the drive module through the communication module and the control module. The drive module drives the third coil to be closed and controls the drive motor to be turned on, so that the first air inlet pipe is connected to the clean air pump, and the first air outlet pipe is connected to the dust box. The blower fan is driven to rotate by the clean air pump, so that the dust on the blower fan flows from the blower fan into the dust box and is collected on the filter. When the filter is collected, just press the limit card, and the filter pops out under the action of the limit spring, and then the popped-out filter can be cleaned.

[0026] The present invention can provide a shell on the box body, and a first air inlet duct and a first air outlet duct are provided on the shell. A blower fan is provided in the first air inlet duct, and a cleaning signal on the blower fan is collected by a vibration sensor. The dust collection box and the cleaning air pump are connected by a first control structure and a second control structure to automatically clean the blower fan. This replaces the prior art design of cleaning the blower fan by disassembling the blower shell. The present invention is more convenient for cleaning the blower fan and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 1 It is a structural schematic diagram of the prior art;

[0029] Figure 2 The overall structure of this embodiment is shown in FIG. Figure 1 ;

[0030] Figure 3 The overall structure of this embodiment is shown in FIG. Figure 2 ;

[0031] Figure 4 The internal structure of the box in this embodiment is shown in FIG. Figure 1 ;

[0032] Figure 5 The internal structure of the box in this embodiment is shown in FIG. Figure 2 ;

[0033] Figure 6 The internal structure of the box in this embodiment is shown in FIG. Figure 3 ;

[0034] Figure 7 Schematic diagram of the internal structure of the housing in this embodiment;

[0035] Figure 8 is a schematic diagram of the connection structure of the rotating main shaft in this embodiment;

[0036] Fig. 9 Schematic diagram of the internal structure of the three-way valve in this embodiment;

[0037] Fig.10 is a schematic structural diagram of the first radial suspension bearing in this embodiment;

[0038] Fig.11 Schematic diagram of the connection structure of the filter screen in this embodiment.

[0039] In the figure:

[0040] 1. Box; 11. Second air inlet pipe; 111. Flow sensor; 12. Second air outlet pipe; 2. Dust box; 21. Filter; 211. Limiting card; 212. Air outlet; 22. Sliding groove; 221. Limiting spring; 23. Limiting groove; 24. Limiting card hole; 3. Shell; 31. First air inlet pipe; 32. First air outlet pipe; 33. Cooling fan; 331. Cooling outlet; 332. Heat exhaust hole; 34. Clean air pump; 4. Three-way valve; 41. Adjusting ball; 411. Ventilation duct; 5. Driving motor; 6. Rotating spindle; 6 1. Diverter column; 62. Rotating plate; 621. Rotating blades; 63. Limiting piece; 64. First safety bearing; 65. Second safety bearing; 66. Vibration sensor; 67. Temperature sensor; 7. Mounting sleeve; 71. Third coil; 72. Magnetic steel sheet; 81. First radial suspension bearing; 811. Connecting rod; 812. First coil; 82. Second radial suspension bearing; 91. First axial suspension bearing; 911. Sealing cover; 912. Second coil; 913. Coil box; 92. Second axial suspension bearing; 93. Fixing piece. DETAILED DESCRIPTION

[0041] The following will be combined with 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.

[0042] like Figure 2 to Figure 11 As shown, this embodiment proposes a DCS control system for a blower. Its structure includes a data acquisition module, which is used to collect temperature, vibration, and flow data and transmit them to a communication module. It includes a temperature sensor 67, a vibration sensor 66, and a flow sensor 111. The data acquisition module of this embodiment is preferably an S7-1200 / S7-1500 PLC+analog input module.

[0043] The communication module is used to receive data from the data acquisition module and transmit the data to the control module. The communication module in this embodiment is preferably SIMATIC S7-1200+CP 1243-1 (Industrial Ethernet communication module).

[0044] The control module is used to receive data from the communication module and transmit execution commands to the drive module. The control module used in this embodiment is preferably an S7-1200 / 1500+ET 200SPI / O module.

[0045] The drive module is used to execute the blower speed adjustment, start and stop commands. The drive module in this embodiment is preferably SINAMICS V20

[0046] The human-machine module is used to display the data of the data acquisition module and send control instructions to the control module. The human-machine module in this embodiment is preferably SITRANS HMI.

[0047] The safety alarm module is used to monitor abnormal conditions during system operation and send out alarm signals to ensure equipment safety. The safety alarm module in this embodiment is preferably a SIRIUS 3UG4 series safety monitoring module.

[0048] Another invention object of the present invention is to provide a magnetic suspension blower, using a blower DCS control system, including a housing 1, and the housing 3 in this embodiment is fixedly arranged in the housing 1. The first air inlet pipe 31 and the first air outlet pipe 32 are arranged on the housing 3, the blower fan is rotatably arranged on the first air inlet pipe 31, and the vibration sensor 66 is arranged on the housing 3 near the blower fan side. The first air inlet pipe 31 is connected to the second air inlet pipe 11 and the clean air pump 34, and the first air outlet pipe 32 is connected to the second air outlet pipe 12 and the dust box 2. The first control structure is arranged on the first air inlet pipe 31, which is used to control the first air inlet pipe 31 to be connected to the second air inlet pipe 11 or to control the first air inlet pipe 31 to be connected to the clean air pump 34. The second control structure is arranged on the first air outlet pipe 32, which is used to control the first air outlet pipe 32 to be connected to the second air outlet pipe 12 or to control the first air outlet pipe 32 to be connected to the dust box 2. The flow sensor 111 is fixedly arranged on the second air inlet pipe 11. The vibration sensor 66 used in this embodiment is preferably SKF Microlog Analyzer. The flow sensor 111 used in this embodiment is preferably of the Zenith series. In this embodiment, the clean air pump 34 blows compressed air to the blower fan of the blower, and the dust on the blower fan is taken away by the air flow, so that it is collected in the dust box 2. When there is a lot of dust on the blower fan, the weight of each position on the blower fan changes, which aggravates the shaking of the blower fan. Therefore, in this embodiment, a vibration sensor 66 is set on the main shaft of the blower fan to detect the accumulation of dust on the blower fan.

[0049] The first control structure in this embodiment includes a drive motor 5, which is fixedly connected to the housing 3, a three-way valve 4 connected to the first air inlet pipe 31, and the three-way valve 4 is connected to the second air inlet pipe 11 and the clean air pump 34 at the same time. The regulating ball 41 is rotatably arranged in the three-way valve 4, and the ventilation duct 411 is arranged in the regulating ball 41. The ventilation duct 411 is in a "T"-shaped structure. The output shaft of the drive motor 5 is fixedly connected to the regulating ball 41, and the second control structure has the same structure as the first control structure. Such a design allows the first air inlet pipe 31 to be connected to the second air inlet pipe 11 or the clean air pump 34 by adjusting the drive motor 5, ensuring that the first air inlet pipe 31 is connected to the second air inlet pipe 11 under normal working conditions, and will not affect the operation of the clean air pump 34; when dust appears on the fan blades, the first air inlet pipe 31 is connected to the clean air pump 34, and the clean air pump 34 blows the dust to the dust box 2 for collection through compressed air.

[0050] In the present embodiment, a rotating main shaft 6 is provided in the housing 3, and the blower fan includes a rotating plate 62, which is fixedly arranged on the side of the rotating main shaft 6 close to the first air inlet pipe 31, and a plurality of rotating blades 621 are fixedly arranged on the rotating plate 62, and a diverter column 61 is fixedly arranged at the center of the rotating plate 62, and the cross section of the diverter column 61 is a circular structure, and the cross-sectional diameter of the diverter column 61 close to the rotating blade 621 side is greater than the cross-sectional diameter of the diverter column 61 away from the rotating blade 621 side, and the first air outlet pipe 32 is connected to the side wall of the housing 3 for exhausting air. Such a design not only ensures that the air can be guided to the rotating blades 621 around after passing through the diverter column 61, but also realizes the air blasting and supercharging under the action of the rotating blades 621. Moreover, when the clean air pump 34 is used, the compressed air generated by the clean air pump 34 can also flow in the direction of the rotating blades 621 under the guidance of the diverter column 61, so that each position of the rotating blades 621 can be cleaned more thoroughly, thereby improving the cleaning quality.

[0051] In this embodiment, the air outlet 212 is in the dust box 2, the sliding groove 22 is set on the air outlet 212, the filter 21 is slidably set in the sliding groove 22, the limit spring 221 is fixedly set at the bottom of the sliding groove 22, the limit groove 23 is set on the inner wall of the sliding groove 22, the limit clamp 211 is set on the filter 21, the limit clamp 211 is made of elastic material, the limit clamp 211 is slidably connected with the limit groove 23, the limit clamp hole 24 is set on the limit groove 23, and the limit clamp 211 is clamped with the limit clamp hole 24. When the filter 21 needs to be cleaned, it is only necessary to press the limit clamp 211 to disengage it from the limit clamp hole 24. Under the action of the limit spring 221, the filter 21 will automatically pop out, making it convenient to remove the filter 21. When the filter 21 is cleaned, it is only necessary to place the filter 21 in the sliding groove 22 and insert the limit clamp 211 into the limit clamp hole 24 to complete the installation and fixation of the filter 21. The installation process is relatively simple.

[0052] In this embodiment, the first radial suspension bearing 81 and the second radial suspension bearing 82 are fixedly arranged in the housing 3, the rotating main shaft 6 is arranged in the first radial suspension bearing 81 and the second radial suspension bearing 82, and a plurality of connecting rods 811 are fixedly arranged in the first radial suspension bearing 81, each connecting rod 811 points to the rotating main shaft 6, each connecting rod 811 is wound with a first coil 812, and the connection structure of the second radial suspension bearing 82 is the same as the connection structure of the first radial suspension bearing 81. Such a design enables this embodiment to control the radial suspension of the rotating main shaft 6 only by controlling the current generated by each connecting rod 811. The radial suspension focuses on the free floating of the main shaft in the radial direction, which helps to maintain the precise alignment between the main shaft and the blades, make the airflow more stable, and reduce the dust accumulation caused by the turbulent airflow. The radial suspension can also reduce the friction and wear in the radial direction, thereby reducing the generation and diffusion of pollutants. In this way, the accumulation of dust on the blower fan is reduced.

[0053] In this embodiment, the first axial suspension bearing 91 and the second axial suspension bearing 92 are arranged in the housing 3, the rotating main shaft 6 is arranged in the first axial suspension bearing 91 and the second axial suspension bearing 92, the fixing member 93 is fixedly arranged between the first axial suspension bearing 91 and the second axial suspension bearing 92 and the housing 3, the limiting member 63 is arranged between the first axial suspension bearing 91 and the second axial suspension bearing 92, the limiting member 63 is fixedly connected to the rotating main shaft 6, the first axial suspension bearing 91 is a cylindrical structure, the first axial suspension bearing 91 includes a coil box 913 and a sealing cover 911, the sealing cover 911 and the coil box 913 are fixed by bolts, the second coil 912 is fixedly arranged in the coil box 913, and the first axial suspension bearing 91 has the same structure as the second axial suspension bearing 92. Such a design enables the first axial suspension bearing 91 and the second axial suspension bearing 92 to generate a force on the limiting member 63, so that the rotating main shaft 6 is in a suspended state. Axial suspension mainly maintains the smooth operation of the equipment by reducing the vibration and friction of the spindle in the axial direction, thereby reducing the dispersion of pollutants caused by vibration or contact and helping to clean the equipment.

[0054] In this embodiment, the first safety bearing 64 and the second safety bearing 65 are fixedly arranged on both sides of the housing 3, and the rotating main shaft 6 is arranged in the first safety bearing 64 and the second safety bearing 65. In this embodiment, the design of the first safety bearing 64 and the second safety bearing 65 is adopted so that even if the blower is in a power-off state, the rotating main shaft 6 can be prevented from being damaged by collision under the action of the first safety bearing 64 and the second safety bearing 65.

[0055] The heat dissipation port 331 in this embodiment is arranged on the side of the housing 3 away from the rotating blades 621, the heat dissipation fan 33 is arranged in the heat dissipation port 331, the heat dissipation fan 33 is fixedly connected to the rotating main shaft 6, and a plurality of heat dissipation holes 332 are arranged at the heat dissipation port 331 near the rotating blades 621 and at the end of the heat dissipation port 331 away from the rotating blades 621. In this embodiment, the heat dissipation fan 33 is arranged on the side of the housing 3 away from the rotating blades 621, and the heat dissipation fan 33 is rotated to remove the heat in the housing 3, thereby reducing the temperature generated by the operation in the housing 3, so that the housing 3 can operate normally. In this embodiment, the heat dissipation fan 33 is directly driven to rotate by the rotating main shaft, which reduces the use of other heat dissipation motors for heat dissipation, reduces electrical components, and makes heat dissipation more efficient.

[0056] The magnetic steel sheet 72 in this embodiment is fixedly arranged in the housing 3 by bolts, the mounting sleeve 7 is fixedly arranged in the magnetic steel sheet 72, the rotating main shaft 6 is arranged in the mounting sleeve 7, and a plurality of third coils 71 are arranged in the mounting sleeve 7, each third coil 71 is parallel to the rotating main shaft 6, and the temperature sensor 67 is fixedly arranged on the magnetic steel sheet 72. Such a design is to generate a magnetic field by energizing the third coil 71, drive the rotating main shaft 6 to rotate, and achieve the purpose of the blower fan rotating and blowing. The temperature sensor 67 used in this embodiment is preferably Pt100.

[0057] The working process of this embodiment is as follows: when a certain amount of dust accumulates on the blower fan, the weight of each position of the fan becomes different due to the effect of the dust, causing the blower fan to vibrate when it is running. At this time, the vibration sensor 66 detects the vibration signal and transmits the vibration signal to the drive module through the communication module and the control module. The drive module drives the third coil 71 to be closed and controls the drive motor 5 to be turned on, so that the first air inlet pipe 31 is connected with the cleaning air pump 34, and the first air outlet pipe 32 is connected with the dust box 2. The blower fan is driven to rotate by the cleaning air pump 34, so that the dust on the blower fan flows from the blower fan into the dust box 2 and is collected on the filter 21. When the filter 21 is collected, just press the limit card 21, and the filter 21 pops up under the action of the limit spring 221, and then the popped-up filter 21 can be cleaned.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 DCS control system for a blower, characterized in that: It includes a data acquisition module for collecting temperature, vibration, and flow data and transmitting the data to the communication module, including a temperature sensor (67), a vibration sensor (66), and a flow sensor (111); A communication module, used for receiving data from the data acquisition module and transmitting the data to the control module; The control module is used to receive data from the communication module and transmit execution commands to the drive module; A drive module, used to execute blower speed adjustment, start and stop commands; The human-machine module is used to display the data from the data acquisition module and send control instructions to the control module; The safety alarm module is used to monitor abnormal conditions during system operation and send out alarm signals to ensure equipment safety.

2. A magnetic suspension blower, using a blower DCS control system as claimed in claim 1, comprising a housing (1), characterized in that: A shell (3) is fixed inside the box body (1), and a first air inlet pipe (31) and a first air outlet pipe (32) are provided on the shell body (3), the first air inlet pipe (31) is rotatably connected to a blower fan, the vibration sensor (66) is arranged on the shell body (3) near the blower fan side, the first air inlet pipe (31) is connected to a second air inlet pipe (11) and a cleaning air pump (34), the first air outlet pipe (32) is connected to a second air outlet pipe (12) and a dust collection box (2), and the first An air inlet pipe (31) is provided with a first control structure for controlling the first air inlet pipe (31) to be connected to the second air inlet pipe (11) or controlling the first air inlet pipe (31) to be connected to the clean air pump (34); a second control structure for controlling the first air outlet pipe (32) to be connected to the second air outlet pipe (12) or controlling the first air outlet pipe (32) to be connected to the dust collecting box (2) is provided on the first air outlet pipe (32); and the flow sensor (111) is fixedly arranged on the second air inlet pipe (11).

3. A magnetic suspension blower according to claim 2, characterized in that: The first control structure comprises a drive motor (5), the drive motor (5) is fixedly connected to the housing (3), the first air inlet pipe (31) is connected to a three-way valve (4), the three-way valve (4) is simultaneously connected to the second air inlet pipe (11) and the clean air pump (34), an adjusting ball (41) is rotatably connected inside the three-way valve (4), a ventilation duct (411) is provided inside the adjusting ball (41), and the ventilation duct (411) is in a "T"-shaped structure, the output shaft of the drive motor (5) is fixedly connected to the adjusting ball (41), and the second control structure has the same structure as the first control structure.

4. A magnetic suspension blower according to claim 2, characterized in that: A rotating main shaft (6) is provided in the shell (3), and the blower fan comprises a rotating plate (62). The rotating plate (62) is fixedly arranged on the side of the rotating main shaft (6) close to the first air inlet pipe (31), and a plurality of rotating blades (621) are fixed on the rotating plate (62). A diverter column (61) is fixed at the center of the rotating plate (62), and the cross-section of the diverter column (61) is a circular structure. The cross-section diameter of the diverter column (61) close to the rotating blades (621) is larger than the cross-section diameter of the diverter column (61) away from the rotating blades (621). The first air outlet pipe (32) is connected to the side wall of the shell (3).

5. The magnetic suspension blower according to claim 2, characterized in that: An air outlet (212) is provided in the dust box (2), a sliding groove (22) is provided on the air outlet (212), a filter screen (21) is slidably connected in the sliding groove (22), a limiting spring (221) is fixed at the bottom of the sliding groove (22), a limiting groove (23) is provided on the inner wall of the sliding groove (22), a limiting clamp (211) is provided on the filter screen (21), the limiting clamp (211) is made of elastic material, the limiting clamp (211) is slidably connected to the limiting groove (23), a limiting clamp hole (24) is provided on the limiting groove (23), and the limiting clamp (211) is clamped with the limiting clamp hole (24).

6. A magnetic levitation blower according to claim 4, characterized in that: A first radial suspension bearing (81) and a second radial suspension bearing (82) are fixed in the shell (3); the rotating main shaft (6) is arranged in the first radial suspension bearing (81) and the second radial suspension bearing (82); a plurality of connecting rods (811) are fixed in the first radial suspension bearing (81); each of the connecting rods (811) points to the rotating main shaft (6); a first coil (812) is wound around each of the connecting rods (811); and the connecting structure of the second radial suspension bearing (82) is the same as the connecting structure of the first radial suspension bearing (81).

7. The magnetic suspension blower according to claim 4, characterized in that: A first axial suspension bearing (91) and a second axial suspension bearing (92) are also provided in the housing (3); the rotating main shaft (6) is arranged in the first axial suspension bearing (91) and the second axial suspension bearing (92); a fixing member (93) is fixed between the first axial suspension bearing (91) and the second axial suspension bearing (92) and the housing (3); a limiting member (63) is provided between the first axial suspension bearing (91) and the second axial suspension bearing (92); the limiting member (63) is fixedly connected to the rotating main shaft (6); the first axial suspension bearing (91) is a cylindrical structure; the first axial suspension bearing (91) comprises a coil box (913) and a sealing cover (911); the sealing cover (911) and the coil box (913) are fixed by bolts; a second coil (912) is fixed in the coil box (913); the first axial suspension bearing (91) and the second axial suspension bearing (92) have the same structure.

8. The magnetic suspension blower according to claim 4, characterized in that: A first safety bearing (64) and a second safety bearing (65) are fixed on both sides of the housing (3), and the rotating main shaft (6) is arranged inside the first safety bearing (64) and the second safety bearing (65).

9. The magnetic suspension blower according to claim 7, characterized in that: The shell (3) is provided with a heat dissipation port (331) on the side away from the rotating blades (621), a heat dissipation fan (33) is provided inside the heat dissipation port (331), the heat dissipation fan (33) is fixedly connected to the rotating main shaft (6), and a plurality of heat dissipation holes (332) are provided at the end of the heat dissipation port (331) close to the rotating blades (621) and at the end of the heat dissipation port (331) away from the rotating blades (621).

10. The magnetic suspension blower according to claim 4, characterized in that: A magnetic steel sheet (72) is fixed in the shell (3) by bolts, a mounting sleeve (7) is fixed in the magnetic steel sheet (72), the rotating main shaft (6) is arranged in the mounting sleeve (7), a plurality of third coils (71) are arranged in the mounting sleeve (7), each of the third coils (71) is parallel to the rotating main shaft (6), and the temperature sensor (67) is fixed on the magnetic steel sheet (72).

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