Magnetic suspension centrifugal blower with anti-blocking function

Abstract

The utility model belongs to the technical field of magnetic suspension centrifugal blowers, and particularly relates to a magnetic suspension centrifugal blower with an anti-blocking function, which comprises a shell, a sealing door arranged on the outer side of the shell, a control panel arranged on the outer side of the shell and close to the sealing door, a filter port arranged on one side of the shell, and a frequency converter arranged in the shell. The impeller mechanism is specifically composed of a mounting disc, a first blade, a second blade, a third blade, a fourth blade and a fifth blade. Through the filtering opening, the spiral groove, the impeller mechanism, the first blade, the second blade, the third blade, the fourth blade and the fifth blade, the impeller mechanism adopts non-uniform blade arrangement, so that periodic detached vortex can be generated to peel off impurities attached to the surfaces of the corresponding blades when airflow is driven, and the filtering effect of the filtering opening on air entering the shell is combined; the anti-blocking effect on equipment can be achieved, the anti-blocking effect needs to be continuously achieved under the condition that the air blower runs, and continuous use of the air blower can be maintained while the anti-blocking effect can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic levitation centrifugal blowers, specifically a magnetic levitation centrifugal blower with anti-clogging function. Background Technology

[0002] Magnetic levitation centrifugal blowers are high-efficiency and energy-saving devices that combine magnetic levitation technology with centrifugal blower design. They are widely used in wastewater treatment, chemical industry, metallurgy, power industry and other fields. Magnetic levitation blowers use contactless and frictionless magnetic levitation bearings and high-speed, high-power permanent magnet synchronous motors to directly drive high-efficiency fluid impellers. This overcomes the shortcomings of traditional blowers and air-suspended blowers, and has advantages such as high efficiency, low noise, few failures, and no need for a lubrication system. Even if the magnetic levitation bearing fails, the high-speed rotating rotor can still be safely stopped by the protective bearing in the system, without causing serious damage to the equipment.

[0003] The existing technology has the following shortcomings: Application No. 202322019734.1 proposes a magnetic levitation centrifugal blower with anti-clogging function, including a shell. Inside the shell, on the upper left side, a blower body is located. An air supply pipe is fixedly connected to the upper end of the blower body. A hollow box is fixedly connected to the upper end of the air supply pipe. An air inlet pipe is fixedly connected to the middle of the right end of the hollow box. A hollow shell is fixedly connected to the middle of the left end of the hollow box. A motor is fixedly connected to the right side of the upper end of the hollow shell. A first helical gear is fixedly connected to the output end below the motor. A second helical gear meshes with the outer right side of the first helical gear. A threaded rod is helically connected inside the second helical gear. Through the motor, the first helical gear, the second helical gear, the threaded rod, and the push plate, the device can squeeze and clear the air inlet pipe, preventing excessive dust from causing blockage and reducing the difficulty for operators in clearing the air inlet pipe.

[0004] The aforementioned equipment uses a threaded rod to drive a push plate into the air inlet duct, thereby clearing the air inlet duct and achieving an anti-clogging effect. However, when the air inlet duct needs to be cleared, it means that a lot of dust and impurities have accumulated in the air inlet duct, so it cannot achieve a practical anti-clogging effect and cannot prevent clogging in advance. Furthermore, during the air inlet duct clearing process, the push plate needs to be completely inserted into the air inlet duct, which will close the air inlet duct and require the equipment to be temporarily stopped. Therefore, it cannot achieve an anti-clogging effect while ensuring the continuous operation of the magnetic levitation centrifugal blower. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a magnetic levitation centrifugal blower with anti-clogging function to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic levitation centrifugal blower with anti-clogging function, comprising a housing, a closed door on the outside of the housing, a control panel near the closed door on the outside of the housing, a filter port on one side of the housing, a frequency converter inside the housing, a mounting plate inside the housing near the frequency converter, a blower on the mounting plate, a fixing plate at the bottom of the blower, a volute at one end of the blower, an air inlet in the middle of the volute, an impeller mechanism at one end of the blower, and a spiral groove on the inner wall of the volute.

[0007] The impeller mechanism is specifically composed of a mounting plate, a first blade, a second blade, a third blade, a fourth blade, and a fifth blade, with the first blade, second blade, third blade, fourth blade, and fifth blade arranged on the mounting plate.

[0008] As a preferred technical solution of this utility model: the closed door is hinged to the housing, and the control panel is fixedly installed on the outside of the housing.

[0009] As a preferred technical solution of this utility model: there are several groups of filter ports, a filter screen is fixed inside the filter port, and the frequency converter is fixedly installed inside the housing.

[0010] As a preferred technical solution of this utility model: the blower is fixedly mounted on the mounting plate by a fixing plate, the frequency converter is electrically connected to the blower, the blower is electrically connected to the control panel, and the control panel is electrically connected to an external power source.

[0011] As a preferred technical solution of this utility model: the volute is fixedly installed on the blower, and the air inlet corresponds to the filter port.

[0012] As a preferred technical solution of this utility model: the spiral groove is formed on the inner wall of the volute and is adapted to the curvature of the inner wall of the volute.

[0013] As a preferred technical solution of this utility model: the first blade, the second blade, the third blade, the fourth blade, and the fifth blade are all fixedly installed on the mounting plate. The tilt angles of the first blade and the fifth blade are both 20 degrees, the tilt angle of the second blade is 18 degrees, the tilt angle of the third blade is 22 degrees, and the tilt angle of the fourth blade is 15 degrees. The first blade, the second blade, the third blade, the fourth blade, and the fifth blade are all in two groups and are arranged in a ring on the mounting plate to form a non-uniform arrangement.

[0014] Compared with the prior art, this utility model provides a magnetic levitation centrifugal blower with anti-clogging function, which has the following beneficial effects:

[0015] 1. This magnetic levitation centrifugal blower with anti-clogging function, by setting up a filter port, spiral groove, impeller mechanism, first blade, second blade, third blade, fourth blade, and fifth blade, forms a non-uniform blade arrangement during impeller rotation, breaking the steady airflow field of traditional symmetrical blade layout. When the impeller mechanism rotates, the airflow driven by the asymmetrical blades forms a sudden change in local pressure gradient, which can generate periodic delamination vortices on the leeward side of the corresponding blade. The vortex delamination flow strips impurities attached to the surface of the corresponding blade and is discharged from the volute with the airflow. Combined with the filtration effect of the filter port on the air entering the housing, the equipment can achieve an anti-clogging effect.

[0016] 2. This magnetic levitation centrifugal blower with anti-clogging function, by setting up a filter port, spiral groove and impeller mechanism, when the impeller mechanism rotates, the detached vortex brought by the asymmetrical blades can prevent impurities from adhering to the blades. The anti-clogging effect needs to be continuously effective while the blower is running, so the anti-clogging effect can be guaranteed while the blower can be used continuously. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0019] Figure 3 This is a schematic diagram of the external structure and spiral groove of the blower of this utility model;

[0020] Figure 4 This is a schematic diagram of the impeller mechanism of this utility model.

[0021] In the diagram: 1. Housing; 2. Enclosed door; 3. Control panel; 4. Filter port; 5. Frequency converter; 6. Mounting plate; 7. Blower; 8. Fixing plate; 9. Volute; 10. Air inlet; 11. Impeller mechanism; 1101. Mounting plate; 1102. First blade; 1103. Second blade; 1104. Third blade; 1105. Fourth blade; 1106. Fifth blade; 12. Spiral groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 In this embodiment: a magnetic levitation centrifugal blower with anti-clogging function includes a housing 1, a closed door 2 on the outside of the housing 1, a control panel 3 on the outside of the housing 1 near the closed door 2, a filter port 4 on one side of the housing 1, a frequency converter 5 inside the housing 1, a mounting plate 6 inside the housing 1 near the frequency converter 5, a blower 7 on the mounting plate 6, a fixing plate 8 at the bottom of the blower 7, a volute 9 at one end of the blower 7, an air inlet 10 in the middle of the volute 9, an impeller mechanism 11 at one end of the blower 7, and a spiral groove 12 on the inner wall of the volute 9.

[0024] The spiral groove 12 can guide the impurities stripped off from the blade to be discharged from the volute 9 to the outside, and the sealing door 2 can seal the shell 1.

[0025] The impeller mechanism 11 is specifically composed of a mounting plate 1101, a first blade 1102, a second blade 1103, a third blade 1104, a fourth blade 1105, and a fifth blade 1106. The mounting plate 1101 is provided with the first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105, and the fifth blade 1106.

[0026] The first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105, and the fifth blade 1106 can be easily installed via the installation disk 1101.

[0027] In this embodiment, the closed door 2 is hinged to the housing 1, the control panel 3 is fixedly installed on the outside of the housing 1, there are several sets of filter ports 4, a filter screen is fixed inside the filter port 4, the frequency converter 5 is fixedly installed inside the housing 1, the blower 7 is fixedly installed on the mounting plate 6 through the fixing plate 8, there is an electrical connection between the frequency converter 5 and the blower 7, there is an electrical connection between the blower 7 and the control panel 3, and there is an electrical connection between the control panel 3 and the external power supply.

[0028] Specifically, the blower 7 can be turned on and off via the control panel 3, and the air entering the housing 1 can be filtered via the filter port 4.

[0029] In this embodiment, the volute 9 is fixedly installed on the blower 7, the air inlet 10 corresponds to the filter 4, the spiral groove 12 is opened on the inner wall of the volute 9 and is adapted to the curvature of the inner wall of the volute 9, the first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105 and the fifth blade 1106 are all fixedly installed on the mounting plate 1101, the tilt angle of the first blade 1102 and the fifth blade 1106 is 20 degrees, the tilt angle of the second blade 1103 is 18 degrees, the tilt angle of the third blade 1104 is 22 degrees, and the tilt angle of the fourth blade 1105 is 15 degrees. The first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105 and the fifth blade 1106 are all in two sets and are distributed in a ring on the mounting plate 1101 to form a non-uniform arrangement.

[0030] Specifically, the non-uniform arrangement of the first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105, and the fifth blade 1106 can cause a sudden change in the local pressure gradient of the airflow driven by the impeller mechanism 11 when it rotates, generating periodic decoupling vortices on the leeward side of the corresponding blades. The decoupling vortex will strip away impurities attached to the surface of the corresponding blade.

[0031] The working principle and usage process of this utility model are as follows: In actual use, the equipment is placed in a suitable position and connected to an external power supply. The blower 7 is controlled by the control panel 3, which simultaneously drives the impeller mechanism 11 to rotate. External air enters the housing 1 through the filter port 4 and enters the air inlet 10 under the drive of the impeller mechanism 11. The air in the air inlet 10 has its flow path changed by the impeller mechanism 11 and finally enters the volute 9 and is discharged from the top of the volute 9. During the rotation of the impeller mechanism 11, due to the different installation angles of the first blade 1102, the second blade 1103, the third blade 1104, the fourth blade 1105, and the fifth blade 1106, a non-uniform blade arrangement is formed. The asymmetrical blades break the steady airflow field of traditional symmetrical blade layout. When the impeller mechanism 11 rotates, the airflow driven by the asymmetrical blades creates a sudden change in the local pressure gradient, which can generate periodic detached vortices on the leeward side of the corresponding blade. The vortex detached flow will peel off the impurities attached to the surface of the corresponding blade and be discharged from the volute 9 with the airflow. The spiral groove 12 can guide the impurities peeled off from the blades to be discharged from the inside of the volute 9 to the outside, avoiding the impurities from adhering to the impeller mechanism 11. Combined with the filtration effect of the filter port 4 on the air entering the housing 1, the equipment can achieve the anti-clogging effect. The anti-clogging effect needs to be continuously effective while the blower 7 is running, so the anti-clogging effect can be guaranteed while the blower 7 can be continuously used.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic levitation centrifugal blower with anti-blocking function, comprising a shell (1), the outer side of the shell (1) is provided with a closing door (2), the outer side of the shell (1) is provided with a control panel (3) near the closing door (2), characterized in that: The shell (1) is provided with a filter port (4) on one side, a frequency converter (5) is arranged in the shell (1), a mounting plate (6) is arranged in the shell (1) close to the frequency converter (5), a blower (7) is arranged on the mounting plate (6), a fixed plate (8) is arranged at the bottom of the blower (7), a volute (9) is arranged at one end of the blower (7), an air inlet (10) is arranged in the middle of the volute (9), an impeller mechanism (11) is arranged at one end of the blower (7), and a spiral groove (12) is arranged on the inner wall of the volute (9). The impeller mechanism (11) is specifically composed of a mounting disc (1101), a first blade (1102), a second blade (1103), a third blade (1104), a fourth blade (1105) and a fifth blade (1106), and the first blade (1102), the second blade (1103), the third blade (1104), the fourth blade (1105) and the fifth blade (1106) are arranged on the mounting disc (1101).

2. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The closing door (2) is hinged between the shell (1), and the control panel (3) is fixedly installed on the outside of the shell (1).

3. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The filter port (4) has several groups, and the filter port (4) is fixedly provided with a filter screen, and the frequency converter (5) is fixedly installed in the shell (1).

4. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The blower (7) is fixedly installed on the mounting plate (6) through the fixed plate (8), the frequency converter (5) and the blower (7) are electrically connected, the blower (7) and the control panel (3) are electrically connected, and the control panel (3) and the external power supply are electrically connected.

5. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The volute (9) is fixedly installed on the blower (7), and the air inlet (10) corresponds to the filter port (4).

6. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The spiral groove (12) is arranged in the inner wall of the volute (9) and matches the curvature of the inner wall of the volute (9).

7. The magnetic levitation centrifugal blower with anti-blocking function according to claim 1, characterized in that: The first blade (1102), the second blade (1103), the third blade (1104), the fourth blade (1105) and the fifth blade (1106) are all fixedly installed on the mounting disc (1101), the inclination angles of the first blade (1102) and the fifth blade (1106) are both 20 degrees, the inclination angle of the second blade (1103) is 18 degrees, the inclination angle of the third blade (1104) is 22 degrees, the inclination angle of the fourth blade (1105) is 15 degrees, and the first blade (1102), the second blade (1103), the third blade (1104), the fourth blade (1105) and the fifth blade (1106) are all two groups and annularly distributed on the mounting disc (1101) to form a non-uniform arrangement.

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