CN214661084U - Active air cooling system of magnetic suspension centrifugal blower - Google Patents
Active air cooling system of magnetic suspension centrifugal blower Download PDFInfo
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- CN214661084U CN214661084U CN202120875561.1U CN202120875561U CN214661084U CN 214661084 U CN214661084 U CN 214661084U CN 202120875561 U CN202120875561 U CN 202120875561U CN 214661084 U CN214661084 U CN 214661084U
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Abstract
The utility model discloses an active air cooling system of magnetic suspension centrifugal blower, lid, rotor subassembly, motor stator and magnetic suspension stator module behind spiral case, impeller, casing, the front end and the spiral case of casing are connected, and the rear end is equipped with lid behind the casing, rotor subassembly, motor stator and magnetic suspension stator module all locate the casing inner chamber, the impeller is located in the spiral case, rotor subassembly front end and impeller coaxial coupling, the lid is equipped with the fresh air inlet behind the casing, casing front end lateral wall is equipped with the air outlet, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of mutual intercommunication, the fresh air inlet communicates with each other with the air outlet through magnetic suspension stator module and motor stator's fresh air inlet. The active air cooling system does not need external parts such as external heat dissipation equipment, a water cooling pipeline or a heat exchanger, the former external passive heat dissipation is changed into internal active heat dissipation, the heat dissipation cost is reduced while the heat dissipation efficiency of the motor rotor is improved, and the heat dissipation system is maintenance-free and high in reliability.
Description
Technical Field
The utility model relates to a magnetic suspension bearing field, specific active air cooling system of magnetic suspension centrifugal blower that says so
Background
Because the working power of the magnetic suspension centrifugal blower is high, the generated heat is high, and the motor rotor inside the blower needs to be radiated when the blower works, so that the stable operation of equipment is ensured. At present, the heat dissipation of a motor rotor of a blower is mainly external heat dissipation equipment, usually, a heat dissipation fan, a fan power supply, an additional heat dissipation water path and a heat exchanger need to be additionally prepared, a large amount of energy is consumed for maintaining the work of the heat dissipation equipment, and the equipment maintenance cost is increased. Because an external heat dissipation means is only used for dissipating heat from the outside of the casing, the heat dissipation effect on the motor rotor is not optimal, the normal operation of equipment is affected, the reliability of the system is reduced, and the maintenance period is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an active air cooling system of magnetic suspension centrifugal blower has solved the problem that motor radiating efficiency is low, the reliability is poor in the past. The air cooling system improves the reliability of the system, has good heat dissipation effect, is maintenance-free, changes passive heat dissipation into active heat dissipation, improves the heat dissipation efficiency and reduces the maintenance cost.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a magnetic suspension centrifugal blower air cooling system, lid, rotor subassembly, motor stator and magnetic suspension stator module behind spiral case, impeller, casing, the front end and the spiral case of casing are connected, and the rear end is equipped with the lid behind the casing, the casing inner chamber is all located to rotor subassembly, motor stator and magnetic suspension stator module, the impeller is located in the spiral case, rotor subassembly front end and impeller coaxial coupling, the lid is equipped with the fresh air inlet behind the casing, casing front end lateral wall is equipped with the air outlet, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of intercommunication each other, the fresh air inlet communicates with each other with the air outlet through magnetic suspension stator module and motor stator's fresh air inlet.
Further, the magnetic suspension stator component comprises a front radial magnetic bearing stator, a front sensor, a rear radial magnetic suspension bearing, a rear sensor and an axial magnetic suspension bearing, wherein the front radial magnetic bearing stator is arranged at the front end of the motor stator, the front sensor is arranged at the front end of the front radial magnetic bearing stator, and a plurality of ventilation holes communicated with the air outlet are respectively arranged in the circumferential direction of the front radial magnetic bearing stator and the front sensor; the rear radial magnetic bearing stator is arranged at the rear end of the motor stator, the rear sensor is arranged at the rear end of the rear radial magnetic bearing stator, and a plurality of ventilation holes communicated with the air outlet are respectively arranged in the circumferential direction of the rear radial magnetic bearing stator and the rear sensor; the axial magnetic suspension bearing is arranged at the rear end of the rear sensor, and a plurality of ventilation openings communicated with the air outlet are formed in the circumferential direction of the axial magnetic suspension bearing.
Furthermore, the positions of the front radial magnetic bearing stator and the vent hole of the front sensor are corresponding and coaxial, and the positions of the rear radial magnetic bearing stator and the vent hole of the rear sensor are corresponding and coaxial.
Further, axial magnetic suspension bearing includes thrust disc, preceding axial bearing stator and back axial bearing stator are connected with the casing inner wall respectively, the thrust disc is located between preceding axial bearing stator and the back axial bearing stator, preceding axial bearing stator and back axial bearing stator are equipped with a plurality of corresponding and with the communicating ventilation hole of air outlet respectively.
Further, the thrust disc is including pushing away a set main part and wind-guiding blade, push away a set main part and rotor assembly's main shaft interference fit, the excircle circumference of pushing away a set main part evenly is equipped with a plurality of wind-guiding blade, and back axial bearing stator ventilation hole communicates with each other through wind-guiding blade and preceding axial bearing stator ventilation hole.
The utility model has the advantages that:
1. the utility model discloses an active air cooling system of magnetic suspension centrifugal blower adopts and takes the initiative air supply to dispel the heat to the part in the casing from lid orientation behind the casing, fully absorbs the heat of motor and other parts, improves the radiating effect. External parts such as external heat dissipation equipment, a water cooling pipeline or a heat exchanger are not needed, the former external passive heat dissipation is changed into internal active heat dissipation, the heat dissipation cost is reduced while the heat dissipation efficiency of the motor is improved, and a heat dissipation system is maintenance-free and high in reliability.
2. Because the excircle circumference of thrust plate is equipped with a plurality of curved surface form blade, can lead the wind of carrying from back axial bearing stator ventilation hole through the blade, the ventilation hole of axial bearing stator terminal surface before the direction of wind homodisperse guarantees the even entering casing inner chamber of wind energy that gets into from the casing back lid, guarantees the radiating efficiency.
Drawings
FIG. 1 is the internal structure and schematic diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic diagram of distribution of heat dissipation air paths;
FIG. 4 is a schematic structural view of a thrust plate;
fig. 5 is a schematic view of the distribution of air inlets on the end surface of the rear cover of the casing.
In the figure:
1 impeller, 2 volute, 3 casing, 4 front sensor, 5 front radial magnetic bearing stator, 6 motor stator, 7 rear radial magnetic bearing stator, 8 rear sensor, 9 front axial bearing stator, 10 thrust disk, 101 thrust disk main body, 102 wind guide blade, 11 rear axial bearing stator, 12 casing rear cover, 121 rear cover main body, 122 air inlet, 13 shaft end gland, 14 rear radial axial protection bearing, 15 rear radial protection bearing gland, 16 rotor component, 17 front radial protection bearing gland, 18 front radial protection bearing, 19 dynamic seal, 20 vent hole, 21 air outlet, a heat dissipation wind path.
Detailed Description
The active air cooling system of the magnetic suspension centrifugal blower of the present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1 to 5, the utility model discloses an active air cooling system of magnetic suspension centrifugal blower, lid 12, rotor subassembly 16, motor stator 6 and magnetic suspension stator module behind spiral case 2, impeller 1, casing 3, the casing, the front end and the spiral case 2 of casing 3 are connected, and the rear end is equipped with lid 12 behind the casing, 3 inner chambers of casing are all located to rotor subassembly 16, motor stator 6 and magnetic suspension stator module, impeller 1 is located in spiral case 2, 16 front ends of rotor subassembly and impeller 1 coaxial coupling, and motor stator 4 control rotor subassembly 16's main shaft is rotatory, and the radial and axial position of magnetic suspension stator module control main shaft prevents that the skew axle center of main shaft from producing the friction. Lid 12 is equipped with fresh air inlet 122 behind the casing, casing front end lateral wall is equipped with a plurality of air outlet 21, motor stator and magnetic suspension stator module all are equipped with the ventilation hole 20 of intercommunication each other, fresh air inlet 122 communicates with each other with air outlet 21 through magnetic suspension stator module and motor stator's ventilation hole 20. The air is actively fed from the rear cover 12 of the machine shell, the motor stator 6 and the magnetic suspension stator assembly are provided with corresponding ventilation holes 20 and form a heat dissipation air path with the air outlet 21, and the problem that parts such as external heat dissipation equipment, a water cooling pipeline, a heat exchanger and the like are required to dissipate heat of the air blower in the past is solved. The external heat dissipation is changed into the internal heat dissipation, so that the heat dissipation effect is improved, meanwhile, the heat dissipation system is maintenance-free, the cost is reduced, and the reliability is high.
The magnetic suspension stator component comprises a front radial magnetic bearing stator 5, a front sensor 4, a rear radial magnetic bearing stator 7, a rear sensor 8 and an axial magnetic suspension bearing, wherein the front radial magnetic bearing stator 5 is arranged at the front end of a motor stator 6, the front sensor 4 is arranged at the front end of the front radial magnetic bearing stator 5, and a plurality of ventilation holes 20 communicated with the air outlet are respectively arranged in the circumferential direction of the front radial magnetic bearing stator 5 and the front sensor 4; the rear radial magnetic bearing stator 7 is arranged at the rear end of the motor stator 6, the rear sensor 8 is arranged at the rear end of the rear radial magnetic bearing stator 7, and a plurality of ventilation holes 20 communicated with the air outlet are respectively arranged in the circumferential direction of the rear radial magnetic bearing stator 7 and the rear sensor 8; the axial magnetic suspension bearing is arranged at the rear end of the rear sensor 8, a plurality of ventilation openings communicated with the air outlet are arranged in the circumferential direction of the axial magnetic suspension bearing, the air inlet end of the ventilation opening in the axial magnetic suspension bearing is communicated with the inner cavity of the rear cover of the machine shell 3, and the air outlet end of the ventilation opening in the axial magnetic suspension bearing is communicated with the inner cavity of the machine shell. The positions of the front radial magnetic bearing stator 5 and the vent holes of the front sensor 4 are corresponding and coaxial, and the positions of the rear radial magnetic bearing stator 7 and the vent holes of the rear sensor 8 are corresponding and coaxial.
The axial magnetic suspension bearing comprises a thrust disc 10, a front axial bearing stator 9 and a rear axial bearing stator 11, wherein the front axial bearing stator 9 and the rear axial bearing stator 11 are respectively connected with the inner wall of the shell 3, the thrust disc 10 is arranged between the front axial bearing stator and the rear axial bearing stator, and the front axial bearing stator 9 and the rear axial bearing stator 11 are respectively provided with a plurality of corresponding ventilation holes 20 communicated with the air outlet. As shown in fig. 4, the thrust disk 10 includes a thrust disk main body 101 and air guide vanes 102, the thrust disk main body 101 is in interference fit with the main shaft of the rotor assembly 16, a plurality of air guide vanes 102 are uniformly arranged in the circumferential direction of the outer circle of the thrust disk main body 101, one side of each air guide vane 102 is an arc-shaped surface, the other side of each air guide vane 102 is a curved surface to play a role in guiding air, and air passing through the rear axial bearing stator ventilation hole is communicated with the front axial bearing stator ventilation hole through the air guide vanes. The wind entering from the rear axial bearing stator vent hole is guided to the front axial bearing stator 9 vent hole through the wind guide blades on the thrust disc 10, and the wind is discharged from the front axial bearing stator vent hole.
The front end of a main shaft of the rotor assembly is provided with a front sealing assembly, the rear end of the main shaft of the rotor assembly is provided with a rear sealing assembly, the front sealing assembly comprises a dynamic seal 19, a front radial protection bearing 18 and a front radial protection bearing gland 17, the front end of the main shaft is hermetically connected with the volute 2 through the dynamic seal 19, the front radial protection bearing 18 is arranged in the dynamic seal 19, and the rear end of the dynamic seal is provided with the front radial protection bearing gland 17; the rear sealing assembly comprises a rear shaft end gland 13, a rear radial axial protection bearing 14 and a rear radial protection bearing gland 15, the rear radial axial protection bearing 14 is arranged between the front axial bearing stator 9 and the main shaft and is sleeved with the main shaft, the rear radial axial protection bearing gland is arranged on one side of the rear radial axial protection bearing 14, and the shaft end gland is arranged at the rear end of the main shaft.
The motor stator 6 and the magnetic suspension stator assembly are provided with the same number of ventilation holes and corresponding positions, so that the air quantity and the air speed can reach the optimal heat dissipation efficiency. However, the arrangement of the number and the positions of the ventilation holes is not limited to the above arrangement, and the ventilation holes can be communicated with the air outlet only, so that the heat-dissipating air can be discharged through the air outlet finally.
The working principle is as follows: the end surface of the rear cover 12 of the casing is provided with a plurality of air inlet holes 122 communicated with the inner cavity of the casing, and air is actively fed from the rear cover 12 of the casing through the air inlet holes 122. The wind entering the inner cavity of the rear cover 12 of the machine shell passes through the thrust disk 10 from a plurality of ventilation holes on the end surface of the rear axial bearing stator 11, and because a plurality of wind guide blades 102 are arranged in the circumferential direction of the thrust disk 10 and the wind guide blades 102 are arranged obliquely, the wind passing through the blades is guided into the ventilation holes on the end surface of the front axial bearing stator 9, and the ventilation holes on the front axial bearing stator 9 enter the inner cavity of the machine shell 3; the air entering the inner cavity of the casing 3 passes through the vent of the rear sensor 8, the vent of the rear radial magnetic bearing stator 7, the vent of the motor stator 6, the vent of the front radial magnetic bearing stator 5 and the vent of the front sensor 4 in sequence and then is discharged from a plurality of air outlets of the casing 3, so that a heat dissipation air path a of the inner cavity of the casing is formed, and the heat dissipation and cooling of the motor stator, the bearings and the like in the casing are realized.
The utility model discloses an active air cooling system of magnetic suspension centrifugal blower need not external heat radiation equipment, outside parts such as cold pipeline or heat exchanger not, becomes the initiative heat dissipation by passive heat dissipation, when improving electric motor rotor radiating efficiency, has reduced the radiating cost, and the cooling system is non-maintaining, and the reliability is high.
The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (5)
1. The utility model provides an active air cooling system of magnetic suspension centrifugal blower, lid, rotor subassembly, motor stator and magnetic suspension stator module behind spiral case, impeller, casing, the front end and the spiral case of casing are connected, and the rear end is equipped with the casing back lid, the casing inner chamber is all located to rotor subassembly, motor stator and magnetic suspension stator module, the impeller is located in the spiral case, rotor subassembly front end and impeller coaxial coupling, characterized by, the lid is equipped with the fresh air inlet behind the casing, casing front end lateral wall is equipped with the air outlet, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of intercommunication each other, the fresh air inlet communicates with each other with the air outlet through magnetic suspension stator module and motor stator's ventilation hole.
2. The active air cooling system of the magnetic suspension centrifugal blower according to claim 1, wherein the magnetic suspension stator assembly comprises a front radial magnetic suspension bearing, a front sensor, a rear radial magnetic suspension bearing, a rear sensor and an axial magnetic suspension bearing, the front radial magnetic suspension bearing is arranged at the front end of a motor stator, the front sensor is arranged at the front end of the front radial magnetic suspension bearing, and a plurality of air vents communicated with the air outlet are respectively arranged in the circumferential direction of the front radial magnetic suspension bearing and the front sensor; the rear radial magnetic suspension bearing is arranged at the rear end of the motor stator, the rear sensor is arranged at the rear end of the rear radial magnetic suspension bearing, and a plurality of ventilation holes communicated with the air outlet are respectively arranged in the circumferential direction of the rear radial magnetic suspension bearing and the rear sensor; the axial magnetic suspension bearing is arranged at the rear end of the rear sensor, and a plurality of ventilation openings communicated with the air outlet are formed in the circumferential direction of the axial magnetic suspension bearing.
3. The active air cooling system of claim 2, wherein the front radial magnetic suspension bearing and the front sensor have corresponding and coaxial positions of the vent holes, and the rear radial magnetic suspension bearing and the rear sensor have corresponding and coaxial positions of the vent holes.
4. The active air cooling system of claim 2, wherein the axial magnetic suspension bearing comprises a thrust disc, a front axial bearing stator and a rear axial bearing stator, the front axial bearing stator and the rear axial bearing stator are respectively connected to the inner wall of the housing, the thrust disc is disposed between the front axial bearing stator and the rear axial bearing stator, and the front axial bearing stator and the rear axial bearing stator are respectively provided with a plurality of corresponding ventilation holes communicated with the air outlet.
5. The active air cooling system of a magnetic suspension centrifugal blower as claimed in claim 4, wherein the thrust plate comprises a main body and a plurality of air guide vanes, the main body is in interference fit with the main shaft of the rotor assembly, the air guide vanes are uniformly arranged on the outer circumference of the main body, and the rear axial bearing stator ventilation hole is communicated with the front axial bearing stator ventilation hole through the air guide vanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120875561.1U CN214661084U (en) | 2021-04-26 | 2021-04-26 | Active air cooling system of magnetic suspension centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120875561.1U CN214661084U (en) | 2021-04-26 | 2021-04-26 | Active air cooling system of magnetic suspension centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214661084U true CN214661084U (en) | 2021-11-09 |
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ID=78471745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120875561.1U Active CN214661084U (en) | 2021-04-26 | 2021-04-26 | Active air cooling system of magnetic suspension centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214661084U (en) |
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2021
- 2021-04-26 CN CN202120875561.1U patent/CN214661084U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An active air cooling system for a magnetic levitation centrifugal blower Effective date of registration: 20230809 Granted publication date: 20211109 Pledgee: Jinan Zhangqiu District Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Shandong tomorrow Machinery Group Co.,Ltd. Registration number: Y2023980051515 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |