CN217879546U - Hydraulic generator air gap magnetic flux monitoring devices - Google Patents
Hydraulic generator air gap magnetic flux monitoring devices Download PDFInfo
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- CN217879546U CN217879546U CN202221336052.2U CN202221336052U CN217879546U CN 217879546 U CN217879546 U CN 217879546U CN 202221336052 U CN202221336052 U CN 202221336052U CN 217879546 U CN217879546 U CN 217879546U
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- air gap
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- stator core
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a hydraulic generator air gap magnetic flow monitoring devices, including stator and rotor, on its characterized in that stator core from interior circle to excircle interval around being equipped with many circles of line type magnetic flow sensor, and on each circle of line type magnetic flow sensor was fixed in stator core through a plurality of fixed block, each circle of line type magnetic flow sensor outwards draws forth and links to each other with the line, and the line is connected with outside measuring element or measuring terminal electricity. The generator air gap magnetic field is monitored by the linear magnetic flux sensor arranged on the inner circle of the stator core, and the point monitoring of the prior art is improved into line monitoring by the arrangement of the multi-coil linear magnetic flux sensor, so that the measuring range is increased, the accuracy of measured data is improved, and powerful guarantee is provided for stable and safe operation of the generator.
Description
Technical Field
The utility model relates to a monitoring devices, especially a hydraulic generator air gap magnetic flow monitoring devices belongs to water conservancy water and electricity monitoring technology field.
Background
The size and the distribution condition of the air gap magnetic field of the generator are very important reference data in motor state monitoring, and the method can be used for carrying out early warning and after diagnosis on the motor faults. In daily operation, online waveforms are recorded in real time and automatically compared with historical waveforms, and whether faults such as stator deformation, rotor deformation, eccentricity and turn-to-turn short circuit occur in the motor can be quickly judged. Meanwhile, the development degree of the fault can be judged, and a basis is provided for scientifically and reasonably formulating operation and maintenance measures. The existing monitoring device can only monitor a certain position of the axial direction of the stator, and the whole condition of the motor is difficult to reflect, so that the monitoring data is inaccurate, and adverse effects are brought to the safe operation of the generator. There is therefore a need for improvements in the prior art.
Disclosure of Invention
For solving current generator air gap magnetic field monitoring devices and only can monitor the single position on the stator to lead to the monitoring data inaccurate, influence the problem of generator safe operation, the utility model provides a hydraulic generator air gap magnetic flow monitoring devices.
The utility model discloses a following technical scheme: the utility model provides a hydraulic generator air gap magnetic flow monitoring devices, including stator and rotor, its characterized in that stator core is last from interior circle to excircle interval around being equipped with many circles of line type magnetic flow sensor, and each circle of line type magnetic flow sensor is fixed in on the stator core through a plurality of fixed block, each circle of line type magnetic flow sensor outwards draws forth and links to each other with the line, the line is connected with external measuring element or measuring terminal electricity, so that monitor the generator air gap magnetic field through locating the line type magnetic flow sensor on the circle in the stator core, and through the setting of many circles of line type magnetic flow sensor, improve measured data's accuracy, ensure that the generator can stabilize the safety operation.
Each circle of linear magnetic flux sensor is led out and connected with a connecting wire from bottom to top along the excircle of the stator core, the top stator air duct and from top to bottom along the excircle of the stator core and the bottom stator air duct surrounding a circle, and is electrically connected with an external measuring element or a measuring terminal through the connecting wire, so that the point monitoring in the prior art is improved into line monitoring, the measuring range is further enlarged, and the accuracy of measured data is ensured.
The fixing block is a rectangular block provided with a wire slot, the wire slot is arranged into a through slot, one side of the wire slot is provided with a bayonet, and the linear magnetic flux sensor is clamped into the wire slot through the bayonet, so that the linear magnetic flux sensor is quickly fixed.
The key photo is arranged on the rotor spindle, the key photo is matched and connected with the eddy current sensor fixedly arranged on the spindle sleeve, and the eddy current sensor is connected with the measuring element or the measuring terminal so as to connect a voltage signal of the eddy current into the measuring element or the measuring terminal for positioning the rotor.
The linear magnetic flux sensor, the key phase sheet, the electric eddy current sensor, the measuring element or the measuring terminal are all conventional products.
The utility model has the advantages of the following and the effect: adopt above-mentioned scheme, can conveniently monitor generator air gap magnetic field through locating the linear magnetic flux sensor on the circle in the stator core to through many circles linear magnetic flux sensor's setting, promote prior art's point monitoring to the line monitoring, and then increase measuring range, improve measured data's accuracy, provide the powerful guarantee for the stable safe operation of generator. Is an ideal monitoring device.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a diagram of a fixing block of the present invention;
fig. 4 is a partially enlarged view of fig. 1.
In the figure, 1 is a connecting line, 2 is a measuring element or a measuring terminal, 3 is a stator, 4 is a linear magnetic flux sensor, 5 is a fixed block, 6 is a top stator air duct, 7 is a stator bar, 8 is a rotor, 9 is a bottom stator air duct, 10 is a rotor spindle, 11 is a key phase plate, and 12 is an eddy current sensor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a hydraulic generator air gap magnetic flow monitoring devices, including stator 3 and rotor 8, the outside circle interval of circle is around being equipped with many circles of line type magnetic flow sensor 4 in the stator 3 iron core 31, and each circle of line type magnetic flow sensor 4 is fixed in on the stator 3 iron core 31 through a plurality of fixed block 5, each circle of line type magnetic flow sensor 4 outwards draws forth and links to each other with line 1, line 1 is connected with 2 electricity of external measuring element or measuring terminal, so that come to monitor generator air gap magnetic field through locating the line type magnetic flow sensor 4 on the circle in the stator 3 iron core 31, and improve measured data's accuracy through setting up of many circles of line type magnetic flow sensor 4, ensure that the generator can the safe operation of stabilizing.
Each circle of linear magnetic flux sensor 4 is led out from bottom to top along the excircle of the iron core 31 of the stator 3, the top stator air duct 6 and from top to bottom along the excircle of the iron core 31 of the stator 3 and the bottom stator air duct 9 surrounding a circle and then connected with the connecting line 1, and is electrically connected with an external measuring element or a measuring terminal 2 through the connecting line 1, so that the point monitoring in the prior art is changed into line monitoring, the measuring range is further improved, and the accuracy of measured data is ensured.
The fixing block 5 is a rectangular block provided with a wire slot 51, the wire slot 51 is a through slot, and a bayonet 52 is arranged on one side of the wire slot 51, so that the linear magnetic flux sensor 4 can be clamped into the wire slot 51 through the bayonet 52, and the linear magnetic flux sensor 4 can be quickly fixed.
The rotor spindle 10 is provided with a key photo 11, the key photo 11 is matched and connected with an eddy current sensor 12 fixed on a spindle sleeve, and the eddy current sensor 12 is electrically connected with the measuring element or the measuring terminal 2 so as to connect a voltage signal of an eddy current into the measuring element or the measuring terminal 2 for rotor positioning.
The linear magnetic flux sensor 4, the key phase plate 11, the eddy current sensor 12, the measuring element or the measuring terminal 2 are provided as conventional products.
Claims (4)
1. A monitoring device for air gap flux of a hydraulic generator comprises a stator and a rotor and is characterized in that a stator core is wound with a plurality of coils of linear flux sensors at intervals from an inner circle to an outer circle, each coil of linear flux sensor is fixed on the stator core through a plurality of fixing blocks, each coil of linear flux sensor is led out outwards and connected with a connecting wire, and the connecting wire is electrically connected with an external measuring element or a measuring terminal.
2. The air gap flux monitoring device for the hydraulic generator according to claim 1, wherein each circle of linear flux sensor is led out and connected with a connecting wire from bottom to top along the outer circle of the stator core, the top stator air channel, from top to bottom along the inner circle of the stator core and the bottom stator air channel, and then is electrically connected with an external measuring element or a measuring terminal through the connecting wire.
3. The air gap flux monitoring device of the hydraulic generator according to claim 1, wherein the fixing block is a rectangular block on which a slot is formed, the slot is a through slot, a bayonet is arranged on one side of the slot, and the linear flux sensor is clamped into the slot through the bayonet.
4. The air gap flux monitoring device of the hydraulic generator according to claim 1, wherein the rotor spindle is provided with a key photo, the key photo is matched and connected with an eddy current sensor fixedly arranged on a spindle sleeve, and the eddy current sensor is electrically connected with the measuring unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221336052.2U CN217879546U (en) | 2022-05-31 | 2022-05-31 | Hydraulic generator air gap magnetic flux monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221336052.2U CN217879546U (en) | 2022-05-31 | 2022-05-31 | Hydraulic generator air gap magnetic flux monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217879546U true CN217879546U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221336052.2U Active CN217879546U (en) | 2022-05-31 | 2022-05-31 | Hydraulic generator air gap magnetic flux monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217879546U (en) |
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2022
- 2022-05-31 CN CN202221336052.2U patent/CN217879546U/en active Active
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