CN219935153U - Device for measuring temperature of horizontal hydraulic generator rotor - Google Patents
Device for measuring temperature of horizontal hydraulic generator rotor Download PDFInfo
- Publication number
- CN219935153U CN219935153U CN202320639929.3U CN202320639929U CN219935153U CN 219935153 U CN219935153 U CN 219935153U CN 202320639929 U CN202320639929 U CN 202320639929U CN 219935153 U CN219935153 U CN 219935153U
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- China
- Prior art keywords
- temperature
- temperature measuring
- measuring
- disc
- metal conducting
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000009529 body temperature measurement Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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 discloses a device for measuring the temperature of a horizontal hydraulic generator rotor, which comprises a temperature measuring disc, wherein a plurality of insulating bosses are concentrically constructed on the end face of the temperature measuring disc, a plurality of annular grooves are formed among the insulating bosses, a metal conducting ring is arranged at the bottom of each annular groove, and each metal conducting ring is connected with a temperature sensor through a lead wire; the temperature measuring device comprises a temperature measuring disc, a fixed block matched with the temperature measuring disc, a fixed sheet fixedly connected to the top of the fixed block, a plurality of groups of temperature measuring carbon brushes connected to the bottom of the fixed sheet, and a plurality of temperature measuring carbon brushes respectively extending downwards into a plurality of annular grooves and respectively abutting against a plurality of metal conducting rings; the temperature measuring carbon brush is connected with a temperature signal receiver through a wire. The utility model adopts a contact temperature measurement mode, and overcomes the defects of larger error and low measurement precision caused by magnetic field interference in wireless communication temperature measurement.
Description
Technical Field
The utility model belongs to the technical field of horizontal hydraulic generator sets, and particularly relates to a device for measuring the temperature of a rotor of a horizontal hydraulic generator.
Background
With the gradual entering of China into the post-hydropower era, undeveloped hydropower resources are gradually reduced, and the capacity expansion and synergy of the developed hydropower station units are gradually increased. Because the civil engineering parts such as foundation pit are unchanged, the temperature of the generator rotor can rise after the unit is compatibilized, and the temperature monitoring requirement on the rotor is increased. There is a great difficulty in monitoring the temperature of the rotating parts of the generator. Conventionally, resistance measurement or indirect measurement of rotor temperature through measurement of large shaft temperature is used for measuring the rotor of the generator, and no direct measurement method exists so far. The main reason that this technology fails to realize is that the rotor is in a rotating state at any time, and power supply and electric signal transmission between the dynamic rotor and the static measuring equipment cannot be realized.
Aiming at the problems, the Chinese patent application with the publication number of CN113125026A adopts a wireless communication method to transmit the temperature measurement signal to the outside. The horizontal generator shell is of a metal structure conventionally, an internal magnetic field is complex, the interference is large when the temperature of the rotor is monitored in a wireless communication mode, the data error is large, and the accuracy is low.
Disclosure of Invention
The utility model aims to overcome the defects of larger error and low measurement precision caused by magnetic field interference in wireless communication temperature measurement by providing a device for measuring the temperature of a horizontal hydraulic generator rotor.
The technical purpose of the utility model is realized by the following technical scheme: the device for measuring the temperature of the horizontal hydraulic generator rotor comprises a temperature measuring disc, wherein a plurality of insulating bosses are concentrically constructed on the end face of the temperature measuring disc, a plurality of annular grooves are formed among the insulating bosses, a metal conducting ring is arranged at the bottom of each annular groove, and each metal conducting ring is connected with a temperature sensor through a lead; the temperature measuring device comprises a temperature measuring disc, a fixed block matched with the temperature measuring disc, a fixed sheet fixedly connected to the top of the fixed block, a plurality of groups of temperature measuring carbon brushes connected to the bottom of the fixed sheet, and a plurality of temperature measuring carbon brushes respectively extending downwards into a plurality of annular grooves and respectively abutting against a plurality of metal conducting rings; the temperature measuring carbon brush is connected with a temperature signal receiver through a wire.
Preferably, the temperature measuring carbon brush comprises a spring connected with the fixing piece and a carbon brush connected to the spring.
Preferably, a plurality of temperature measuring holes are formed in the fixing block, the temperature measuring holes are located right below the fixing plate, and a plurality of temperature measuring carbon brushes are located in the temperature measuring holes respectively.
Preferably, the fixing piece is detachably connected with the fixed block.
Compared with the prior art, the utility model has the following beneficial effects:
1. the device for measuring the temperature of the rotor of the horizontal hydraulic generator provided by the utility model has the advantages of simple structure, reliable operation and longer service life, and can flexibly arrange the preset temperature measuring points according to the operation condition of a power plant, so that the rotor temperature can be monitored more flexibly.
2. The device for measuring the temperature of the horizontal hydraulic generator rotor provided by the utility model adopts a contact temperature measurement mode, and overcomes the defects of larger error and low measurement precision caused by magnetic field interference in wireless communication temperature measurement.
Drawings
Fig. 1 is a schematic diagram of a front view structure of an embodiment of the present utility model.
Fig. 2 is a schematic perspective view of an embodiment of the present utility model.
Fig. 3 is a schematic perspective view of another embodiment of the present utility model.
Fig. 4 is a schematic top view of an embodiment of the present utility model.
In the above figures: 1. a temperature measuring disc; 2. an insulating boss; 3. a metal conductive ring; 4. a lead wire; 5. a temperature sensor; 6. a fixed block; 7. a fixing piece; 8. a temperature measuring carbon brush; 8-1, a spring; 8-2, carbon brush; 9. a wire; 10. and a temperature measuring hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, as a preferred embodiment of the present utility model, there is provided a device for measuring the temperature of a rotor of a horizontal hydraulic generator, which comprises a temperature measuring disc 1, wherein a plurality of insulating bosses 2 are concentrically configured on the end surface of the temperature measuring disc 1, a plurality of annular grooves are formed between the plurality of insulating bosses 2, a metal conducting ring 3 is arranged at the bottom of each annular groove, and each metal conducting ring 3 is connected with a temperature sensor 5 through a lead 4; the temperature measuring device further comprises a fixed block 6 matched with the temperature measuring disc 1, wherein the top of the fixed block 6 is fixedly connected with a fixed sheet 7, the bottom of the fixed sheet 7 is connected with a plurality of groups of temperature measuring carbon brushes 8, and the temperature measuring carbon brushes 8 respectively extend downwards into a plurality of annular grooves and respectively abut against the metal conducting rings 3; the temperature measuring carbon brush 8 is connected with a temperature signal receiver through a lead 9.
In some preferred embodiments, in order to ensure that the temperature measuring carbon brush 8 is in effective contact with the metal conductive ring 3, and avoid invalid data in the temperature measuring process, in this embodiment, the temperature measuring carbon brush 8 includes a spring 8-1 connected with the fixing piece 7 and a carbon brush 8-2 connected to the spring 8-1, and the carbon brush 8-2 is abutted with the metal conductive ring 3 after being stressed to a certain extent by using the elastic force of the spring 8-1, so that the contact effectiveness can be ensured, the purpose of continuous temperature measurement is achieved, and the data loss in the temperature measuring process is prevented.
In some preferred embodiments, considering the environmental impact of the generator operation, the fixing block 6 is provided with a plurality of temperature measuring holes 10, the temperature measuring holes 10 are located directly below the fixing piece 7, and a plurality of temperature measuring carbon brushes 8 are respectively located in a plurality of the temperature measuring holes 10, so as to structurally protect the temperature measuring carbon brushes 8.
In other preferred embodiments, in consideration of the unavoidable abrasion and damage after the movement period of the contact temperature measurement with the rotor shaft, the fixing piece 7 is detachably connected with the fixed block 6 by a screw, so that the temperature measuring carbon brush 8 connected with the fixing piece 7 can be replaced and overhauled.
The device for measuring the temperature of the horizontal hydraulic generator rotor is arranged and measures the temperature according to the following steps when measuring the temperature:
s1, fixedly mounting a temperature measuring disc 1 on the end face of a rotor rotating shaft of a horizontal hydroelectric generating set, and mounting a temperature sensor 5 and a lead 4 to a preset temperature measuring point in a burying mode;
s2, mounting a fixed block 6 on a frame fixed on the outer side of a rotor, so that a plurality of temperature measuring carbon brushes 8 respectively extend downwards into a plurality of annular grooves and respectively abut against a plurality of metal conducting rings 3;
s3, connecting a plurality of temperature measuring carbon brushes 8 with a temperature signal receiver through a lead 9;
s4, during the operation of the horizontal hydroelectric generating set, the temperature of the preset temperature measuring point is read in real time and displayed.
It is noted that in the above embodiment, the temperature signal receiving device may be set separately or may be directly connected to the power plant detection system, so that the rotor temperature monitoring is more convenient for data management and analysis.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (4)
1. The device for measuring the temperature of the horizontal hydraulic generator rotor is characterized by comprising a temperature measuring disc, wherein a plurality of insulating bosses are concentrically constructed on the end face of the temperature measuring disc, a plurality of annular grooves are formed among the insulating bosses, a metal conducting ring is arranged at the bottom of each annular groove, and each metal conducting ring is connected with a temperature sensor through a lead; the temperature measuring device comprises a temperature measuring disc, a fixed block matched with the temperature measuring disc, a fixed sheet fixedly connected to the top of the fixed block, a plurality of groups of temperature measuring carbon brushes connected to the bottom of the fixed sheet, and a plurality of temperature measuring carbon brushes respectively extending downwards into a plurality of annular grooves and respectively abutting against a plurality of metal conducting rings; the temperature measuring carbon brush is connected with a temperature signal receiver through a wire.
2. The apparatus for measuring the temperature of a rotor of a horizontal hydro-generator as defined by claim 1 wherein the temperature sensing carbon brush comprises a spring connected to a stator and a carbon brush connected to the spring.
3. The device for measuring the temperature of the rotor of the horizontal hydraulic generator according to claim 1, wherein a plurality of temperature measuring holes are formed in the fixing block, the temperature measuring holes are located right below the fixing plate, and a plurality of temperature measuring carbon brushes are respectively located in a plurality of the temperature measuring holes.
4. The apparatus for measuring the temperature of a horizontal hydro-generator rotor as defined by claim 1 wherein the stator is removably coupled to the fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320639929.3U CN219935153U (en) | 2023-03-28 | 2023-03-28 | Device for measuring temperature of horizontal hydraulic generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320639929.3U CN219935153U (en) | 2023-03-28 | 2023-03-28 | Device for measuring temperature of horizontal hydraulic generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219935153U true CN219935153U (en) | 2023-10-31 |
Family
ID=88493429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320639929.3U Active CN219935153U (en) | 2023-03-28 | 2023-03-28 | Device for measuring temperature of horizontal hydraulic generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219935153U (en) |
-
2023
- 2023-03-28 CN CN202320639929.3U patent/CN219935153U/en active Active
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