CN214533727U - Air cooling system of magnetic suspension centrifugal blower - Google Patents
Air cooling system of magnetic suspension centrifugal blower Download PDFInfo
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- CN214533727U CN214533727U CN202120875562.6U CN202120875562U CN214533727U CN 214533727 U CN214533727 U CN 214533727U CN 202120875562 U CN202120875562 U CN 202120875562U CN 214533727 U CN214533727 U CN 214533727U
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Abstract
The utility model discloses 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 impeller is located in the spiral case, rotor subassembly front end and impeller coaxial coupling, casing front end lateral wall is equipped with the air outlet, rotor subassembly center department is equipped with the communicating through-hole in both ends, the through-hole rear end communicates with each other with casing back lid inner chamber, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of mutual intercommunication, the ventilation hole communicates with each other with the air outlet of casing front end lateral wall. The 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 magnetic suspension centrifugal blower air cooling system that says so
Background
Because the working power of the magnetic suspension centrifugal blower is larger, the generated heat is larger, and when the blower works, parts such as an internal motor rotor, a motor stator, a magnetic bearing stator and the like need to be radiated, 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, the maintenance period is shortened, and the cost of the whole machine is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a magnetic suspension centrifugal blower air cooling system has solved the problem that motor rotor radiating efficiency is low, complete machine system 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, casing front end lateral wall is equipped with the air outlet, rotor subassembly center department is equipped with the communicating through-hole in both ends, the through-hole rear end communicates with each other with the casing back lid inner chamber, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of intercommunication each other, the ventilation hole communicates with each other with the air outlet of casing front end lateral wall.
Further, the magnetic suspension stator component 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 the motor stator, the front sensor is arranged at the front end of the front radial magnetic suspension bearing, and a plurality of ventilation holes 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.
Furthermore, the positions of the front radial magnetic suspension bearing and the positions of the air holes of the front sensor are corresponding and coaxial, and the positions of the rear radial magnetic suspension bearing and the positions of the air holes of the rear sensor are corresponding and coaxial.
Further, axial magnetic suspension bearing includes thrust disc, preceding axial bearing stator, back axial bearing stator, preceding axial bearing support and back axial bearing support are connected with casing inner wall respectively, preceding axial bearing stator is connected with preceding axial bearing support, back axial bearing stator is connected with back axial bearing support, the thrust disc is located between preceding axial bearing stator and the preceding axial bearing stator, thrust disc and rotor subassembly interference fit, preceding axial bearing support and back axial bearing support circumferencial direction are equipped with the communicating ventilation hole of a plurality of and air outlet respectively.
Furthermore, the vent on the rear axial bearing support is connected with the air duct of the rotor assembly through the shell rear cover diversion cavity.
Further, a sealing assembly is arranged at the front end of a main shaft of the rotor assembly, a protective bearing and a bearing gland are arranged at the rear end of the main shaft, an air duct with two communicated ends is arranged at the axis of the main shaft, and an air outlet of the air duct is communicated with a flow dividing cavity of a rear cover of the machine shell.
Further, the seal assembly comprises a dynamic seal, a front radial protection bearing and a front radial protection bearing gland, the dynamic seal is connected with the volute in a sealing mode, the front radial protection bearing is arranged in the dynamic seal, and the front radial protection bearing gland is arranged at the rear end of the dynamic seal.
Furthermore, the number of the ventilation holes of the motor stator and the magnetic suspension stator component is the same, and the positions of the ventilation holes are corresponding.
The utility model has the advantages that:
1. the utility model discloses a magnetic suspension centrifugal blower air cooling system need not external parts such as external heat dissipation equipment, water-cooling pipeline or heat exchanger, becomes inside initiative heat dissipation by outside passive heat dissipation in the past, has reduced the heat dissipation cost when improving electric motor rotor radiating efficiency, and the cooling system is non-maintaining, and the reliability is high.
2. The heat dissipation air can be conveyed to each part of the inner cavity of the machine shell by matching the diversion cavity of the rear cover of the machine shell with the plurality of ventilation holes in the end face of the rear axial bearing support, so that the heat of the motor rotor and other parts is fully absorbed, and the heat dissipation effect is improved.
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 view of the distribution of heat dissipation outlets;
fig. 4 is a schematic diagram showing arrangement distribution of the vent holes.
In the figure:
1 volute, 2 impeller, 3 casing, 4 motor stator, 5 front radial magnetic bearing stator, 6 front sensor, 7 dynamic seal, 8 thrust disc, 9 front axial bearing stator, 10 rear axial bearing stator, 11 rear radial magnetic bearing stator, 12 rear sensor, 13 rotor assembly, 14 casing rear cover, 141 diversion cavity, 15 front radial protective bearing, 16 front radial protective bearing gland, 17 shaft end gland, 18 rear radial protective bearing, 19 front axial bearing support, 20 rear axial bearing support, 21 air duct, 22 vent, 23 air outlet, a blast air path, b heat dissipation air path.
Detailed Description
The following detailed description of the air cooling system of the magnetic suspension centrifugal blower according to the present invention is made with reference to the attached drawings.
As shown in fig. 1-4, the utility model discloses a magnetic suspension centrifugal blower air cooling system, lid 14, rotor subassembly 13, motor stator 4 and magnetic suspension stator module behind spiral case 1, impeller 2, casing 3, the casing, the front end and the spiral case 1 of casing 3 are connected, and the rear end is equipped with lid 14 behind the casing, 3 inner chambers of casing are all located to rotor subassembly 13, motor stator 4 and magnetic suspension stator module, the impeller is established 2 in spiral case 1, 14 front ends of rotor subassembly and impeller 2 coaxial coupling, and motor stator 4 control rotor subassembly's main shaft is rotatory, and magnetic suspension stator module control main shaft's radial and axial position prevents that the skew axle center of main shaft from producing the friction. The lateral wall of the front end of the machine shell 3 is provided with an air outlet 23, the center of the rotor assembly is provided with a through hole with two communicated ends, the through hole is an air duct 21, the rear end of the through hole is communicated with the inner cavity of the rear cover 14 of the machine shell, the motor stator 4 and the magnetic suspension stator assembly are both provided with air vents 11 which are communicated with each other, and the air vents 11 are communicated with the air outlet 23 on the lateral wall of the front end of the machine shell. The air vents are formed in the rotor assembly, the motor stator and the magnetic suspension stator assembly, and the heat dissipation air path is formed with the air outlet, so that the problem that parts such as external heat dissipation equipment, a water cooling pipeline and a heat exchanger need to be arranged 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 assembly comprises a front radial magnetic bearing stator 5, a front sensor 6, a rear radial magnetic bearing stator 11, a rear sensor 12 and an axial magnetic suspension bearing, wherein the front radial magnetic bearing stator 5 is arranged at the front end of the motor stator 4, the front sensor 6 is arranged at the front end of the front radial magnetic bearing stator 5, and a plurality of ventilation holes 22 communicated with the air outlet 23 are respectively arranged in the circumferential direction of the front radial magnetic bearing stator 5 and the front sensor 6; the rear radial magnetic bearing stator 11 is arranged at the rear end of the motor stator 4, the rear sensor 12 is arranged at the rear end of the rear radial magnetic bearing stator 11, and a plurality of vent holes 22 communicated with the air outlet 23 are respectively arranged in the circumferential direction of the rear radial magnetic bearing stator 11 and the rear sensor 12; the axial magnetic suspension bearing is arranged at the rear end of the rear sensor 6, and a plurality of ventilation holes 22 communicated with the air outlet 23 are formed in the circumferential direction of the axial magnetic suspension bearing. The front radial magnetic bearing stator, the front sensor, the rear radial magnetic bearing stator and the rear sensor are used for controlling the main shaft in the radial direction, and the axial magnetic suspension bearing is used for controlling the main shaft in the axial direction, so that the rotating offset of the main shaft is prevented. The front radial magnetic bearing stator and the front sensor are corresponding and coaxial in vent hole position, and the rear radial magnetic bearing stator and the rear sensor are corresponding and coaxial in vent hole position.
Axial magnetic suspension bearing includes thrust disc 8, preceding axial bearing stator 9, back axial bearing stator 10, preceding axial bearing support 19 and back axial bearing support 20 respectively with 3 inner wall connections of casing, preceding axial bearing stator 9 is connected with preceding axial bearing support 19, back axial bearing stator 10 is connected with back axial bearing support 20, thrust disc 8 is located between preceding axial bearing stator 9 and the preceding axial bearing stator 10, thrust disc 8 and rotor subassembly 13 interference fit, preceding axial bearing support and back axial bearing support circumferencial direction are equipped with the communicating ventilation hole 22 of a plurality of and air outlet 23 respectively. The ventilation opening of the rear axial bearing support 20 is connected with the air duct 21 of the rotor assembly 13 through the casing rear cover diversion cavity 141.
The main shaft front end of rotor subassembly 13 is equipped with seal assembly, seal assembly includes dynamic seal 7, preceding radial protection bearing 15 and preceding radial protection bearing gland 16, dynamic seal 7 and spiral case 1 sealing connection, be equipped with preceding radial protection bearing 15 in the dynamic seal 7, dynamic seal rear end is equipped with preceding radial protection bearing gland 16. The rear end is provided with a rear radial axial protection bearing 18 and a bearing gland 17, the axis of the main shaft of the rotor assembly is provided with an air duct 21 with two communicated ends, and the air outlet of the air duct 21 is communicated with the shunting cavity 141 of the rear cover of the machine shell. The wind guided by the wind channel flows into the shunting cavity, the wind in the shunting cavity 141 is shunted by the plurality of ventilation holes 22 on the end surface of the rear axial bearing support 20, and the shunted wind is uniformly distributed in each part of the inner cavity of the casing, so as to play roles of fully absorbing heat and dissipating heat.
Most preferably, the number of the ventilation holes of the motor stator 4 is the same as that of the ventilation holes of the magnetic suspension stator assembly, and the positions of the ventilation holes are corresponding to each other, so that the air quantity and the air speed are ensured, and the optimal heat dissipation efficiency is achieved. 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.
Air is fed through an air inlet at the front end of the volute 1, and the air entering the volute 1 is divided into two paths. One path of the air flows out from the side part of the volute by rotating and guiding the impeller 2, and the air path is an air blowing air path a. The other path enters the main shaft from an air inlet at the front end of the main shaft to form a heat dissipation air path b, heat dissipation air enters along an air duct 21 at the center of the main shaft, the air entering the main shaft air duct is guided by the main shaft air duct and enters the inner cavity of the rear cover 14 of the machine shell through an air outlet of the air duct, the inner cavity of the rear cover 14 of the machine shell is a shunting cavity 141, and the air entering the shunting cavity is ready to be shunted. The air in the shell rear cover shunting cavity 141 is shunted through the vent holes 22 on the end face of the rear axial bearing support 20, because the vent holes with two communicated ends are uniformly arranged on the circumference of the end of the rear axial bearing support 20, the plurality of vent holes on the end face of the rear axial bearing support enable the shunted air to respectively enter the front axial bearing support 19, the rear sensor 12, the rear radial magnetic bearing stator 11, the motor stator 4, the front radial magnetic bearing stator 5 and the vent holes 22 on the front sensor 6 in sequence and then be discharged from the air outlet 23, and the heat dissipation inside the shell is realized. The rear axial bearing support, the front axial bearing support, the rear sensor, the rear radial magnetic bearing stator, the motor stator, the front radial magnetic bearing stator and the ventilation holes in the front sensor are in one-to-one correspondence, the corresponding ventilation holes are coaxial, the maximum air volume is guaranteed to rapidly pass through, and the heat dissipation effect of the motor rotor is improved.
The utility model discloses a magnetic suspension centrifugal blower air cooling system need not external heat radiation equipment, need not outside parts such as cooling tube way or heat exchanger, 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 (8)
1. 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 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, casing front end lateral wall is equipped with the air outlet, rotor subassembly center department is equipped with the communicating through-hole in both ends, the through-hole rear end communicates with each other with the casing back lid inner chamber, motor stator and magnetic suspension stator module all are equipped with the ventilation hole of mutual intercommunication, the ventilation hole communicates with each other with the air outlet of casing front end lateral wall.
2. The 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 ventilation holes 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 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 air cooling system of claim 2, wherein the axial magnetic suspension bearing comprises a thrust disc, a front axial bearing stator, a rear axial bearing stator, a front axial bearing support and a rear axial bearing support, the front axial bearing support and the rear axial bearing support are respectively connected with the inner wall of the casing, the front axial bearing stator is connected with the front axial bearing support, the rear axial bearing stator is connected with the rear axial bearing support, the thrust disc is arranged between the front axial bearing stator and the front axial bearing stator, the thrust disc is in interference fit with the rotor assembly, and a plurality of ventilation holes communicated with the air outlet are respectively formed in the circumferential directions of the front axial bearing support and the rear axial bearing support.
5. The air cooling system of claim 4, wherein the ventilation opening of the rear axial bearing support is connected to the air duct of the rotor assembly through the diversion cavity of the rear cover of the housing.
6. The air cooling system of the magnetic suspension centrifugal blower according to claim 1, wherein the front end of the main shaft of the rotor assembly is provided with a sealing assembly, the rear end of the main shaft is provided with a protective bearing and a bearing gland, the axis of the main shaft is provided with an air duct with two ends communicated, and the air outlet of the air duct is communicated with the diversion cavity of the rear cover of the machine shell.
7. The air cooling system of claim 6, wherein the seal assembly comprises a dynamic seal, a front radial protection bearing and a front radial protection bearing gland, the dynamic seal is connected with the volute in a sealing manner, the front radial protection bearing is arranged in the dynamic seal, and the front radial protection bearing gland is arranged at the rear end of the dynamic seal.
8. The air cooling system of claim 1, wherein the number of the ventilation holes of the motor stator and the magnetic levitation stator assembly are the same and the positions of the ventilation holes correspond to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120875562.6U CN214533727U (en) | 2021-04-26 | 2021-04-26 | Air cooling system of magnetic suspension centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120875562.6U CN214533727U (en) | 2021-04-26 | 2021-04-26 | Air cooling system of magnetic suspension centrifugal blower |
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| Publication Number | Publication Date |
|---|---|
| CN214533727U true CN214533727U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120875562.6U Active CN214533727U (en) | 2021-04-26 | 2021-04-26 | Air cooling system of magnetic suspension centrifugal blower |
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| CN (1) | CN214533727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593150A (en) * | 2022-03-30 | 2022-06-07 | 雷茨智能装备(广东)有限公司 | Durable magnetic suspension bearing |
| CN116538110A (en) * | 2023-06-20 | 2023-08-04 | 山东华东风机有限公司 | Magnetic suspension air compressor |
-
2021
- 2021-04-26 CN CN202120875562.6U patent/CN214533727U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593150A (en) * | 2022-03-30 | 2022-06-07 | 雷茨智能装备(广东)有限公司 | Durable magnetic suspension bearing |
| CN116538110A (en) * | 2023-06-20 | 2023-08-04 | 山东华东风机有限公司 | Magnetic suspension air compressor |
| CN116538110B (en) * | 2023-06-20 | 2024-02-13 | 山东华东风机有限公司 | Magnetic suspension air compressor |
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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: A magnetic levitation centrifugal blower air cooling system Effective date of registration: 20230809 Granted publication date: 20211029 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 |