CN220204139U - Floating rotor centrifugal pump - Google Patents
Floating rotor centrifugal pump Download PDFInfo
- Publication number
- CN220204139U CN220204139U CN202321199303.1U CN202321199303U CN220204139U CN 220204139 U CN220204139 U CN 220204139U CN 202321199303 U CN202321199303 U CN 202321199303U CN 220204139 U CN220204139 U CN 220204139U
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- rotor
- impeller
- shell
- shielding
- bearing seat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a floating rotor centrifugal pump, which belongs to the technical field of centrifugal pumps and comprises a shell, wherein a shielding stator is arranged on the inner side of the shell, and a shielding rotor is rotatably arranged in the shell. According to the utility model, through the upper radial magnetic stator, the upper radial magnetic rotor, the lower radial magnetic stator and the lower radial magnetic rotor, the rotor component consisting of the whole shielding rotor, the secondary impeller and the first-stage impeller can suspend from the protection bearing under the combined action of the two radial electromagnetic bearings, the axial magnetic stator and the axial electromagnetic rotor, and the rotor component consisting of the shielding rotor, the secondary impeller and the first-stage impeller can realize the performance parameters such as the flow rate, the lift and the like of the centrifugal pump by adjusting the rotating speed of the shielding motor through frequency conversion.
Description
Technical Field
The utility model relates to a floating rotor centrifugal pump, and belongs to the technical field of centrifugal pumps.
Background
At present, centrifugal pumps are generally designed to support the whole rotor component by a mechanical bearing (divided into a rolling bearing or a sliding bearing), so that the service life of a pump set is greatly limited by the service life of the mechanical bearing and the installation precision of the bearing, particularly the centrifugal pump with higher requirements on vibration noise is insufficient;
a floating rotor centrifugal pump is designed for this to optimize the above-mentioned problems.
Disclosure of Invention
The utility model mainly aims to provide a floating rotor centrifugal pump, wherein a rotor component consisting of a whole shielding rotor, a secondary impeller and a first-stage impeller can suspend from a protection bearing under the combined action of two radial electromagnetic bearings consisting of an upper radial magnetic stator, an upper radial magnetic rotor, a lower radial magnetic stator and a lower radial magnetic rotor and an axial electromagnetic bearing consisting of an axial magnetic stator and an axial magnetic rotor, the performance parameters such as the flow rate, the lift and the like of the centrifugal pump can be realized by adjusting the rotating speed of a shielding motor through frequency conversion, unbalanced force on the rotor component can be actively eliminated by adjusting the magnetic stress in a specific direction through changing the electric parameters of the electromagnetic bearings, the rotor can be stably suspended on an ideal axis, the vibration acceleration low-frequency vibration level of a centrifugal pump set is greatly reduced, the arrangement of the upper axial protection bearing, the lower axial protection bearing and the radial protection bearing can be effectively protected after the electromagnetic bearings of the pump set fail, and the water pump can continue to normally operate.
The aim of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a floating rotor centrifugal pump, includes the casing, shielding stator is installed to the inboard of casing, shielding rotor is installed in the inside rotation of casing, the inside both ends of casing all are provided with the cover, the lower bearing frame is installed to the bottom of casing, the bottom of lower bearing frame is provided with the overcurrent casing subassembly, the inside of overcurrent casing subassembly is provided with impeller part, shielding rotor's major axis runs through the lower bearing frame and extends to the inside of overcurrent casing subassembly, be fixed with radial magnetic rotor down on shielding rotor's the major axis in lower bearing frame, radial magnetic rotor's the outside is provided with radial magnetic stator down, axial protection bearing is installed to the bottom of lower bearing frame, the top of casing is installed to the top, shielding rotor's major axis extends to the inside of upper bearing frame, radial protection bearing is installed to the bottom of upper bearing frame, install radial magnetic rotor on the major axis of upper bearing frame inside shielding rotor, the outside of upper radial magnetic rotor is provided with radial magnetic stator, axial magnetic rotor's top is installed on shielding rotor's the major axis, axial magnetic rotor's the top is installed on the axial nut.
Preferably: and a wiring cavity is arranged on the outer side of the shell.
Preferably: the overflow shell assembly comprises a front pump cover, guide vanes and a pump body, wherein the pump body is fixed at the bottom of the lower bearing seat, the front pump cover is fixed at the bottom of the pump body, and the guide vanes are arranged in the pump body.
Preferably: the impeller part comprises a secondary impeller, a shaft sleeve and a primary impeller, wherein the secondary impeller is positioned in the pump body, the primary impeller is positioned in the guide vane, the primary impeller is arranged at the bottom end of the long shaft of the shielding rotor, the secondary impeller is arranged at the top of the primary impeller, the secondary impeller is arranged on the long shaft of the shielding rotor, and the shaft sleeve is arranged between the secondary impeller and the primary impeller.
Preferably: a sealing ring is arranged between the bottom end of the first-stage impeller and the inner side of the front pump cover.
Preferably: a water return component is arranged between the outer side of the front pump cover and the top end of the upper cover, and a regulating valve is arranged on the water return component.
The beneficial effects of the utility model are as follows:
according to the floating rotor centrifugal pump provided by the utility model, through the upper radial magnetic stator, the upper radial magnetic rotor, the lower radial magnetic stator and the lower radial magnetic rotor, the rotor component consisting of the whole shielding rotor, the secondary impeller and the first-stage impeller can suspend from the protection bearing under the combined action of the two radial electromagnetic bearings, the axial magnetic stator and the axial electromagnetic rotor, and the rotor component consisting of the whole shielding rotor, the secondary impeller and the first-stage impeller.
Drawings
FIG. 1 is a front cross-sectional view of the present utility model;
FIG. 2 is a diagram of the internal structure of the pump body of the present utility model;
FIG. 3 is a diagram of the internal structure of the lower bearing seat of the present utility model;
fig. 4 is an internal structural view of the upper bearing housing of the present utility model.
In the figure: 1. a front pump cover; 2. a guide vane; 3. a pump body; 4. a lower bearing seat; 5. shielding the stator; 6. shielding the rotor; 7. a wiring cavity; 8. a water return component; 9. an upper bearing seat; 10. an upper cover; 11. a lock nut; 12. an axial magnetic stator; 13. an axial magnetic rotor; 14. an upper radial magnetic stator; 15. an upper radial magnetic rotor; 16. an upper radial protection bearing; 17. a shielding sleeve; 18. a lower radial magnetic stator; 19. a lower radial magnetic rotor; 20. axially protecting the bearing; 21. a secondary impeller; 22. a shaft sleeve; 23. a first stage impeller; 24. a seal ring; 25. and a housing.
Detailed Description
In order to make the technical solution of the present utility model more clear and clear to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.
As shown in fig. 1-4, this embodiment provides a floating rotor centrifugal pump, including a casing 25, a shielding stator 5 is installed on the inner side of the casing 25, a shielding rotor 6 is installed in the inner rotation of the casing 25, shielding sleeves 17 are all provided at both ends of the inner side of the casing 25, a lower bearing seat 4 is installed at the bottom end of the casing 25, an overcurrent shell component is provided at the bottom of the lower bearing seat 4, an impeller component is provided in the overcurrent shell component, the long axis of the shielding rotor 6 penetrates through the lower bearing seat 4 and extends to the inside of the overcurrent shell component, a lower radial magnetic rotor 19 is fixed on the long axis of the shielding rotor 6 in the lower bearing seat 4, a lower radial magnetic stator 18 is provided on the outer side of the lower radial magnetic rotor 19, an axial protection bearing 20 is installed at the bottom end of the lower bearing seat 4, an upper bearing seat 9 is installed at the top end of the casing 25, the long axis of the shielding rotor 6 extends to the inside of the upper bearing seat 9, an upper radial protection bearing 16 is installed at the bottom end of the upper bearing seat 9, an upper radial magnetic rotor 15 is installed on the long axis of the upper radial magnetic rotor 15, an upper radial magnetic stator 14 is provided on the outer side of the long axis of the upper radial magnetic rotor 6, an upper magnetic rotor 13 is installed at the top end of the long axis of the shielding rotor 6, an axial magnetic rotor 13 is installed at the top of the axial protection cap 13, and an axial magnetic rotor 13 is installed at the top of the axial protection cap is installed at the top of the axial rotor 13.
When the centrifugal pump is used, the start, stop, monitor and adjustment of the pump set are realized through the special variable frequency control box, after a start button is pressed, the whole rotor component composed of the shielding rotor 6, the secondary impeller 21 and the primary impeller 23 is axially pressed out by the axial magnetic bearings composed of the axial magnetic stator 12 and the axial magnetic rotor 13, the upper radial magnetic bearing composed of the upper radial magnetic stator 14 and the upper radial magnetic rotor 15, the lower radial magnetic bearing composed of the lower radial magnetic stator 18 and the lower radial magnetic rotor 19, the whole rotor component can be effectively protected by the upper radial protection bearing 16 and the axial protection bearing 20 under the combined action, then the shielding stator 5 is electrified, the suspended rotor component is driven to rotate at a high speed, the primary impeller 23 and the secondary impeller 21 are driven to rotate at a high speed in the guide vane 2 and the pump body 3 respectively, then the water flow is collected and guided by the guide vane 2 and the pump body 3 and pressed out in the horizontal direction by the pump, and the whole rotor component can be effectively protected by the upper radial protection bearing 16 and the axial protection bearing 20 after the electromagnetic bearing fails, and the whole rotor component can be further normally operated when the pump is stopped.
In the present embodiment, the outside of the cabinet 25 is provided with the wiring chamber 7.
In use, the centrifugal pump is wired through a connection line inside the wiring cavity 7.
In this embodiment, the overflow shell subassembly includes preceding pump cover 1, stator 2 and the pump body 3, and the bottom at the bearing pedestal 4 is fixed to the pump body 3, and the bottom of pump body 3 is fixed with preceding pump cover 1, and the inside of pump body 3 is provided with stator 2.
The high-speed rotation of the rotor member controls the impeller member to rotate at a high speed inside the pump body 3, converts kinetic energy into potential energy, and then is pushed out in the horizontal direction of the pump outlet.
In this embodiment, the impeller components include a secondary impeller 21, a shaft sleeve 22 and a primary impeller 23, the secondary impeller 21 is located in the pump body 3, the primary impeller 23 is located in the guide vane 2, the primary impeller 23 is mounted at the bottom end of the long shaft of the shielding rotor 6, the secondary impeller 21 is arranged at the top of the primary impeller 23, the secondary impeller 21 is mounted on the long shaft of the shielding rotor 6, and the shaft sleeve 22 is arranged between the secondary impeller 21 and the primary impeller 23.
The rotor component rotates at a high speed to drive the first-stage impeller 23 and the secondary impeller 21 to rotate at a high speed in the guide vane 2 and the pump body 3 respectively, and the water flow increases kinetic energy and potential energy under the action of the first-stage impeller 23 and the secondary impeller 21, is collected and guided by the guide vane 2 and the pump body 3 and is extruded from the horizontal direction of the pump outlet.
In the present embodiment, a sealing ring 24 is provided between the bottom end of the primary impeller 23 and the inside of the front pump cover 1.
The sealing performance in the using process is ensured, and the practicability is higher.
In the present embodiment, a water return member 8 is provided between the outside of the front pump cover 1 and the top end of the upper cover 10, and a regulating valve is installed on the water return member 8.
The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.
Claims (6)
1. The utility model provides a floating rotor centrifugal pump which characterized in that: the magnetic shield comprises a shell (25), a shield stator (5) is arranged on the inner side of the shell (25), a shield rotor (6) is rotatably arranged on the inner side of the shell (25), shielding sleeves (17) are arranged at two ends of the inner side of the shell (25), a lower bearing seat (4) is arranged at the bottom end of the shell (25), an overcurrent shell component is arranged at the bottom of the lower bearing seat (4), an impeller component is arranged inside the overcurrent shell component, a long shaft of the shield rotor (6) penetrates through the lower bearing seat (4) and extends to the inner side of the overcurrent shell component, a lower radial magnetic rotor (19) is fixed on the long shaft of the shield rotor (6) inside the lower bearing seat (4), a lower radial magnetic stator (18) is arranged on the outer side of the lower radial magnetic rotor (19), an axial protection bearing (20) is arranged at the bottom end of the lower bearing seat (4), an upper bearing seat (9) is arranged at the top end of the shell (25), the long shaft of the shield rotor (6) extends to the inner side of the upper bearing seat (9), a radial magnetic rotor (15) is arranged on the long shaft of the upper magnetic rotor (16), an axial magnetic rotor (13) is arranged at the top end of a long shaft of the shielding rotor (6), an axial magnetic stator (12) is arranged on the outer side of the axial magnetic rotor (13), a lock nut (11) is fixedly arranged on the long shaft of the shielding rotor (6) at the top of the axial magnetic rotor (13), and an upper cover (10) is arranged at the top of the upper bearing seat (9).
2. A floating rotor centrifugal pump according to claim 1, wherein: a wiring cavity (7) is arranged on the outer side of the shell (25).
3. A floating rotor centrifugal pump according to claim 2, wherein: the overflow shell assembly comprises a front pump cover (1), guide vanes (2) and a pump body (3), wherein the pump body (3) is fixed at the bottom of a lower bearing seat (4), the front pump cover (1) is fixed at the bottom of the pump body (3), and the guide vanes (2) are arranged in the pump body (3).
4. A floating rotor centrifugal pump according to claim 3, wherein: impeller part includes secondary impeller (21), axle sleeve (22) and first-stage impeller (23), secondary impeller (21) are located the inside of pump body (3), first-stage impeller (23) are located the inside of stator (2), the bottom at shielding rotor (6) major axis is installed to first-stage impeller (23), the top of first-stage impeller (23) is provided with secondary impeller (21), secondary impeller (21) are installed on the major axis of shielding rotor (6), be provided with axle sleeve (22) between secondary impeller (21) and first-stage impeller (23).
5. A floating rotor centrifugal pump according to claim 4, wherein: a sealing ring (24) is arranged between the bottom end of the first-stage impeller (23) and the inner side of the front pump cover (1).
6. A floating rotor centrifugal pump according to claim 5, wherein: a water return component (8) is arranged between the outer side of the front pump cover (1) and the top end of the upper cover (10), and a regulating valve is arranged on the water return component (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199303.1U CN220204139U (en) | 2023-05-18 | 2023-05-18 | Floating rotor centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199303.1U CN220204139U (en) | 2023-05-18 | 2023-05-18 | Floating rotor centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204139U true CN220204139U (en) | 2023-12-19 |
Family
ID=89146836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199303.1U Active CN220204139U (en) | 2023-05-18 | 2023-05-18 | Floating rotor centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204139U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748818A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Two suspension pivot three protection pivot multistage impeller formula magnetic levitation pump group topological structure |
| CN117739013A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Shielding magnetic bearing system for marine fluid machinery |
| CN117748819A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Impeller cantilever type mounted two-fulcrum magnetic levitation pump set structure assembly |
-
2023
- 2023-05-18 CN CN202321199303.1U patent/CN220204139U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748818A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Two suspension pivot three protection pivot multistage impeller formula magnetic levitation pump group topological structure |
| CN117739013A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Shielding magnetic bearing system for marine fluid machinery |
| CN117748819A (en) * | 2024-02-21 | 2024-03-22 | 中国人民解放军海军工程大学 | Impeller cantilever type mounted two-fulcrum magnetic levitation pump set structure assembly |
| CN117748818B (en) * | 2024-02-21 | 2024-05-14 | 中国人民解放军海军工程大学 | Two suspension pivot three protection pivot multistage impeller formula magnetic levitation pump group topological structure |
| CN117748819B (en) * | 2024-02-21 | 2024-05-17 | 中国人民解放军海军工程大学 | Impeller cantilever type mounted two-fulcrum magnetic levitation pump set structure assembly |
| CN117739013B (en) * | 2024-02-21 | 2024-05-17 | 中国人民解放军海军工程大学 | Shielding magnetic bearing system for marine fluid machinery |
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