CN217002315U

CN217002315U - Air cooling structure of air suspension blower

Info

Publication number: CN217002315U
Application number: CN202220902204.4U
Authority: CN
Inventors: 孟婵君; 甘露; 李旭; 常海兵; 郑值; 梁为
Original assignee: Cssc Southwest Equipment Research Institute Co ltd
Current assignee: Cssc Southwest Equipment Research Institute Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-19
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses an air cooling structure of an air suspension blower, which comprises a centrifugal compression impeller, a motor and a centrifugal cooling fan, wherein the centrifugal compression impeller is arranged on the motor; the motor comprises a motor shell, a motor rotor and a motor stator; the centrifugal compressor is characterized in that a cooling fan volute and a centrifugal compressor volute are fixedly connected to two ends of the motor shell respectively, two ends of the motor rotor are directly connected with a centrifugal cooling fan and a centrifugal compression impeller, radial air bearings are installed at two ends of the motor rotor, and a thrust bearing is installed on one side, close to the centrifugal compression impeller, of the motor rotor; first cooling air inlets are circumferentially formed in one end, close to the centrifugal compression pinch roller, of the motor shell, and second cooling air inlets are arranged in the middle of the motor shell at intervals. This application has improved the air input of cooling gas, reaches the purpose of fully cooling motor stator, rotor, air bearing to improve the stability of gas suspension air-blower, increase of service life.

Description

Air cooling structure of air suspension blower

Technical Field

The utility model relates to the technical field of air suspension blowers, in particular to an air cooling structure of an air suspension blower.

Background

The air suspension blower is widely applied to various industries due to the advantages of high efficiency, energy conservation, environmental protection and the like, and is more and more mature in the aspect of sewage treatment. In order to ensure the service life and the performance of the motor, a reasonable cooling mode and a reasonable cooling structure are required.

Disclosure of Invention

To the not enough of above-mentioned prior art, the technical problem that this patent application will solve is how to provide an air-cooled structure of air suspension air-blower, realizes the cooling to motor stator, rotor and bearing, improves the whole cooling effect of air suspension air-blower, improves system stability, increase of service life.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an air cooling structure of an air suspension blower comprises a centrifugal compression impeller, a thrust bearing, a radial air bearing, a motor and a centrifugal cooling fan; the motor comprises a motor shell, a motor rotor and a motor stator; the centrifugal compressor is characterized in that a cooling fan volute and a centrifugal compressor volute are fixedly connected to two ends of the motor shell respectively and are installed integrally, two ends of the motor rotor are directly connected with a centrifugal cooling fan and a centrifugal compression impeller, the centrifugal compression impeller is driven to compress through high-speed rotation of a direct-current motor and the centrifugal cooling fan is used for air exhaust cooling, radial air bearings are installed at two ends of the motor rotor, and a thrust bearing is installed on one side, close to the centrifugal compression impeller, of the motor rotor;

first cooling air inlets are formed in the circumferential direction of one end, close to the centrifugal compression pinch roller, of the motor shell, and second cooling air inlets are formed in the middle of the motor shell at intervals.

Wherein the size of the first cooling air inlet is smaller than the size of the second cooling air inlet.

Wherein the first cooling air inlet is a bevel opening.

Wherein, the second cooling air inlet department installs the filter screen, ensures that no foreign matter gets into inside the motor.

And cooling fins are circumferentially and fixedly mounted on the outer side of the motor shell.

In conclusion, the air cooling structure of the air suspension blower is characterized in that the compression impeller and the cooling fan are installed in the same direction, the first cooling air inlet and the second cooling air inlet are formed in the motor shell, the air inflow of cooling air is improved, the purpose of fully cooling a motor stator, a rotor and an air bearing is achieved, the stability of the air suspension blower is improved, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of an air cooling structure of an air suspension blower according to the present invention.

Fig. 2 is an external structural view of fig. 1.

FIG. 3 is a schematic view of the cooling gallery of FIG. 1 with arrows indicating airflow direction.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

As shown in fig. 1-3, an air cooling structure of an air suspension blower comprises a centrifugal compression impeller 2, a thrust bearing 9, a radial air bearing 10, a motor and a centrifugal heat dissipation fan 8; the motor comprises a motor shell 5, a motor rotor 7 and a motor stator 6; the two ends of the motor shell 5 are respectively fixedly connected with a cooling fan volute and a centrifugal compressor volute and are installed into a whole, the two ends of the motor rotor 6 are directly connected with a centrifugal cooling fan 8 and a centrifugal compression impeller 2, the centrifugal compression impeller 2 and the centrifugal cooling fan 8 are driven to perform air exhaust cooling through high-speed rotation of a direct current motor, radial air bearings 10 are installed at the two ends of the motor rotor 7, and a thrust bearing 9 is installed on one side, close to the centrifugal compression impeller 2, of the motor rotor 7;

first cooling air inlets 13 are formed in the circumferential direction of one end, close to the centrifugal compression pinch roller 2, of the motor shell 5, and second cooling air inlets 15 are formed in the middle of the motor shell 5 at intervals.

In this embodiment, the size of the first cooling air inlet 13 is smaller than the size of the second cooling air inlet 15.

In this embodiment, the first cooling air inlet 13 is a bevel opening.

In this embodiment, the second cooling air inlet 15 is provided with a filter screen to ensure that no foreign objects enter the motor.

In this embodiment, cooling fins 14 are circumferentially and fixedly mounted on the outer side of the motor housing 5.

The cooling air flow consists of two parts: a part of air flow enters from a first cooling air inlet 13 on the motor shell 5, enters the outer side of the thrust bearing 9 through a plurality of radial through holes in the outer thrust end cover 3, and enters the interior of the motor through a plurality of axial through holes in the inner thrust end cover 4 after air supply and cooling to the thrust bearing 9; the other part of the airflow enters from a second cooling air inlet 15 on the motor shell 5 to directly cool the motor stator 6, and then enters the right end part of the motor stator through a plurality of axial holes on the end cover at the right side of the motor stator 6; after entering the motor, the two cooling air flows supply air to the right radial bearing 10 and cool the right radial bearing, then enter the left radial bearing 10 through the gap between the motor stator 6 and the motor rotor 7, supply air to the left radial bearing and cool the left radial bearing, then flow into the inlet of the cooling fan 8, and are discharged from the tail of the cooling fan after being acted by the centrifugal cooling fan. In addition, the motor shell 5 is provided with axial cooling fins 14, so that the heat exchange between the motor and the outside air can be further enhanced, and the cooling effect is enhanced. The lower end of the motor housing 5 is mounted on a base 12 via a damper block 11. The centrifugal compressor volute is outwardly fitted with a fairing 1.

Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. An air cooling structure of an air suspension blower is characterized by comprising a centrifugal compression impeller (2), a thrust bearing (9), a radial air bearing (10), a motor and a centrifugal cooling fan (8); the motor comprises a motor shell (5), a motor rotor (7) and a motor stator (6); the centrifugal compressor is characterized in that a cooling fan volute and a centrifugal compressor volute are fixedly connected to two ends of the motor shell (5) respectively, two ends of the motor rotor (7) are directly connected with the centrifugal cooling fan (8) and the centrifugal compression impeller (2), radial air bearings (10) are installed at two ends of the motor rotor (7), and a thrust bearing (9) is installed on one side, close to the centrifugal compression impeller (2), of the motor rotor (7);

first cooling air inlets (13) are formed in the circumferential direction of one end, close to the centrifugal compression impeller (2), of the motor shell (5), and second cooling air inlets (15) are formed in the middle of the motor shell (5) at intervals.

2. An air-cooling structure of an air-suspending blower according to claim 1, wherein the size of the first cooling air inlet (13) is smaller than that of the second cooling air inlet (15).

3. An air-cooling structure of an air-suspending blower fan in accordance with claim 1, wherein the first cooling air inlet (13) is a beveled opening.

4. The air cooling structure of an air suspension blower according to claim 1, wherein a filter screen is installed at the second cooling air inlet (15).

5. The air cooling structure of the air suspension blower according to claim 1, wherein the outer side of the motor housing (5) is circumferentially and fixedly provided with cooling fins (14).