CN218724864U - Temperature monitoring structure of generator magnetic pole lead - Google Patents
Temperature monitoring structure of generator magnetic pole lead Download PDFInfo
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- CN218724864U CN218724864U CN202222527694.7U CN202222527694U CN218724864U CN 218724864 U CN218724864 U CN 218724864U CN 202222527694 U CN202222527694 U CN 202222527694U CN 218724864 U CN218724864 U CN 218724864U
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- temperature sensor
- temperature
- generator
- magnetic pole
- pole lead
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Abstract
The utility model provides a temperature monitoring structure of generator magnetic pole lead wire, include: the generator rotor central body is provided with at least two magnetic poles at the periphery, and the end part of each magnetic pole is provided with a magnetic pole lead; the connecting piece is arranged between two adjacent magnetic poles and is suitable for connecting magnetic pole leads of the two adjacent magnetic poles; a fixing member adapted to fix a pole lead of the magnetic pole to the connecting piece; and the temperature sensor is arranged on the connecting sheet and is suitable for monitoring the temperature of the connecting sheet. The utility model discloses a scheme can realize the effective promotion of generator unit equipment operational reliability.
Description
Technical Field
The utility model relates to a temperature monitoring technical field especially indicates a temperature monitoring structure of generator magnetic pole lead wire.
Background
In the process of generating and pumping water, the generator set of the pumped storage power station has many potential safety hazards, such as: the magnetic pole lead of the generator rotor causes loose contact or small contact surface because of frequent start-stop, high-speed forward and reverse rotation and other operations of the generator, so that the magnetic pole lead generates heat and has poor conduction; the discharge of arc caused by tearing and fusing of the lead wire of the magnetic pole seriously threatens the insulation safety of the stator coil of the magnetic pole coil, and even causes safety accidents such as electrical short circuit, fire and the like;
because the generator set runs in a closed environment for a long time and the detection period is long, workers cannot find out abnormal working conditions of the magnetic pole connecting sheet of the generator rotor in time, so that the running reliability of equipment is reduced, and safety accidents such as short circuit, fire, equipment outage, even casualties and the like are easily caused, so that the danger of accidents is greatly increased, and huge economic loss is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a temperature monitoring structure of generator magnetic pole lead wire can solve the problem that is difficult to timely discovery generator rotor magnetic pole connection piece's the unusual condition of work.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a temperature monitoring structure for a generator pole lead, comprising:
the generator rotor central body is provided with at least two magnetic poles at the periphery, and the end part of each magnetic pole is provided with a magnetic pole lead;
the connecting piece is arranged between two adjacent magnetic poles and is suitable for connecting magnetic pole leads of the two adjacent magnetic poles;
a fixing member adapted to fix a pole lead of the magnetic pole to the connecting piece;
and the temperature sensor is arranged on the connecting sheet and is suitable for monitoring the temperature of the connecting sheet.
Optionally, the temperature sensor includes:
the bearing plate covers above the connecting sheet and is fixedly connected with the connecting sheet;
the temperature sensor chip is arranged on the bearing plate and fixedly connected with the bearing plate.
Optionally, the bearing plate is provided with at least two fixing holes, and the temperature sensor is suitable for being mounted on the connecting piece through the fixing holes.
Optionally, the temperature sensor includes:
a temperature sensor probe adapted to monitor a temperature of the connection pad;
the connecting wire is fixedly connected with the temperature sensor probe;
the antenna is fixedly connected with the end part of the connecting wire.
Optionally, an adhesive layer is arranged outside the temperature sensor, and the adhesive layer is suitable for adhering the temperature sensor to the connecting piece.
Optionally, an isolation layer is further disposed between the temperature sensor and the adhesive layer.
Optionally, the fixing member includes:
the outer surface of the bolt is provided with external threads and is suitable for penetrating through the connecting piece and the magnetic pole lead of the magnetic pole;
the inner surface of the nut is provided with internal threads, and the nut is suitable for being in threaded connection with the bolt and fixing the bolt.
Optionally, the method further includes: and the friction ring is fixed on the end surface of the nut.
Optionally, the inner wall of the friction ring is provided with at least two spring pieces, and the spring pieces are abutted against the external threads, so that the nut is fastened on the outer surface of the bolt.
Optionally, the magnetic pole lead of the magnetic pole is sheet-shaped and is suitable for being attached to the end of the connecting sheet. The above technical scheme of the utility model at least include following beneficial effect:
the utility model discloses temperature monitoring structure of generator magnetic pole lead wire, include: the generator rotor comprises a generator rotor central body, a connecting sheet, a fixing piece and a temperature sensor; the periphery of the central body of the generator rotor is provided with at least two magnetic poles, and the end part of each magnetic pole is provided with a magnetic pole lead; the connecting sheet is arranged between two adjacent magnetic poles and is suitable for connecting magnetic pole leads of the two adjacent magnetic poles; the fixing piece is suitable for fixing a magnetic pole lead of the magnetic pole with the connecting piece; the temperature sensor is arranged on the connecting piece and is suitable for monitoring the temperature of the connecting piece. The temperature monitoring structure of the generator magnetic pole lead can effectively improve the running reliability of generator unit equipment.
Drawings
Fig. 1 is a schematic diagram of a temperature monitoring structure of the generator pole lead of the present invention;
fig. 2 is a schematic structural diagram of the temperature sensor of the present invention;
fig. 3 is a schematic structural diagram of another temperature sensor according to the present invention;
fig. 4 is a schematic view of the temperature sensor of the present invention fixed to the connecting sheet;
fig. 5 is a schematic view of the connection piece and the magnetic pole lead wire of the present invention fixedly connected;
fig. 6 is a schematic structural view of the connecting member of the present invention;
fig. 7 is a schematic view of the installation structure of the friction ring and the nut of the present invention;
fig. 8 is a schematic view of the installation structure of the friction ring and the nut and the bolt according to the present invention.
The reference numbers illustrate:
1. a generator rotor hub; 2. a magnetic pole; 21. a magnetic pole lead; 3. connecting sheets; 4. a fixing member; 41. a bolt; 42. a nut; 421. a friction ring; 4211. a spring plate; 5. a temperature sensor; 51. carrying a plate; 511. a fixing hole; 52. a temperature sensor chip; 53. a temperature sensor probe; 54. connecting wires; 55. an antenna.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a temperature monitoring structure for a generator magnetic pole lead, including: the generator rotor central body 1, a connecting sheet 3, a fixing piece 4 and a temperature sensor 5;
the periphery of the generator rotor central body 1 is provided with at least two magnetic poles 2, and the end part of each magnetic pole 2 is provided with a magnetic pole lead 21; the connecting sheet 3 is arranged between two adjacent magnetic poles 2 and is suitable for connecting magnetic pole leads 21 of the two adjacent magnetic poles 2; the fixing part 4 is suitable for fixing the pole lead 21 of the magnetic pole 2 and the connecting piece 3; the temperature sensor 5 is arranged on the connecting piece 3 and is suitable for monitoring the temperature of the connecting piece 3.
Here, the poles 2 are part of a generator rotor, and the webs 3 connecting at least two of the poles 2 are hard-wired; the temperature sensor 5 is a wireless passive temperature measuring sensor.
It should be noted that the temperature sensor 5 can be selected according to actual requirements, including but not limited to an electric power anti-metal ceramic temperature sensor, and the electric power anti-metal ceramic temperature sensor is preferably selected in the scheme;
the electric power anti-metal ceramic temperature measurement sensor is characterized in that a protective shell is made of modified polyphenylene sulfide (PPS) plastic, the long-term service temperature of the electric power anti-metal ceramic temperature measurement sensor is 220-240 ℃, and the short-term service temperature of the electric power anti-metal ceramic temperature measurement sensor is 260 ℃. The electric power anti-metal ceramic temperature measuring sensor takes ceramic as a base material, and has excellent chemical stability, electric insulation, mechanical rigidity and new heat-resistant and flame-retardant properties; meanwhile, the heat conducting performance is good, and the short-time temperature rise of the tested body can be well reflected by the testing chip.
The utility model discloses an in this embodiment, the temperature monitoring structure of generator magnetic pole lead wire can carry out real time monitoring to the temperature of generator magnetic pole lead wire to realize the effective promotion of generator unit equipment operational reliability.
In an optional embodiment of the present invention, the temperature sensor 5 includes: a carrier plate 51, a temperature sensor chip 52; the bearing plate 51 covers the upper part of the connecting sheet 3 and is fixedly connected with the connecting sheet 3; the temperature sensor chip 52 is disposed on the carrier plate 51, and is fixedly connected to the carrier plate 51.
In this embodiment, the material of the carrier plate 51 may include, but is not limited to, a copper plate, and any material that can realize a conductive function may be used as the carrier plate 51; the temperature sensor chip 52 can be disposed at any position of the carrier plate 51 as long as the temperature sensor chip 52 can realize a temperature monitoring function.
As shown in fig. 2, in another alternative embodiment of the present invention, the bearing plate 51 is provided with at least two fixing holes 511, and the temperature sensor 5 is suitable for being mounted on the connecting sheet 3 through the fixing holes 511.
In this embodiment, the fixing holes 511 may be circular holes through which the temperature sensors 5 fixed on the bearing plate 51 may be mounted on the connecting pieces 3.
As shown in fig. 3, in another alternative embodiment of the present invention, the temperature sensor 5 includes: a temperature sensor probe 53, a connection line 54, an antenna 55;
the temperature sensor probe 53 is adapted to monitor the temperature of the connection piece 3; the connecting wire 54 is fixedly connected with the temperature sensor probe 53; the antenna 55 is fixedly connected to an end of the connection line 54.
In this embodiment, the temperature sensor 5 may be adapted to include but not limited to: the temperature measurement requirements of different materials such as liquid or metal and the like are met, the temperature measurement device has the characteristics of flexible temperature measurement point positions, wide temperature measurement range, high precision, long reading distance, small size, convenience in installation and the like, is particularly suitable for temperature measurement of the interior of metal, liquid or special materials, and can be conveniently applied to power, energy and special work production lines.
In another optional embodiment of the present invention, an adhesive layer is disposed outside the temperature sensor 5, and the adhesive layer is suitable for adhering the temperature sensor 5 to the connecting sheet 3;
further, an isolation layer is arranged between the temperature sensor 5 and the bonding layer.
It should be noted that the adhesive layer may be an insulating adhesive which has an insulating effect and can firmly adhere the temperature sensor 5 to the connecting sheet 3; the isolation layer can be cotton cloth capable of wrapping the temperature sensor 5;
in this embodiment, after the temperature sensor 5 shown in fig. 3 is wrapped by cotton cloth, the temperature sensor 5 wrapped by cotton cloth is firmly adhered to the connecting piece 3 by an insulating adhesive having an insulating effect (as shown in fig. 4), and the connecting piece 3 is fixedly connected to the magnetic pole lead 21 by the fixing member 4 (as shown in fig. 5).
As shown in fig. 6, in another alternative embodiment of the present invention, the fixing member 4 includes: bolts 41, nuts 42; the outer surface of the bolt 41 is provided with external threads and is suitable for penetrating through the connecting piece 3 and the magnetic pole lead 21 of the magnetic pole 2; the inner surface of the nut 42 is provided with an internal thread adapted to be threadedly engaged with the bolt 41 and fix the bolt 41.
In this embodiment, a bolt connection manner is adopted, so that the connection piece 3 can still be well fixedly connected with the magnetic pole lead 21 when the generator rotates at a high speed. The operation safety of the equipment is ensured.
As shown in fig. 7, in another optional embodiment of the present invention, the method further includes: and the friction ring 421 is fixed on the end surface of the nut 42.
In this embodiment, the friction ring 421 may be fixed on the end surface of the nut 42 by riveting or welding, and is integrated with the nut 42 to play a role in preventing loosening, so that the nut 42 and the bolt 41 are more tightly mounted.
In another alternative embodiment of the present invention, as shown in fig. 8, at least two spring strips 4211 are disposed on the inner wall of the friction ring 421, and the spring strips 4211 are abutted against the external threads, so that the nut 42 is fastened to the outer surface of the bolt 41.
In this embodiment, at least two spring strips 4211 on the inner wall of the friction ring 421 abut against the external threads, due to the spring action of the spring strips 4211, the spring strips 4211 generate stress, the external threads of the bolt 41 generate a reaction force corresponding to the stress, and the stress interacts with the reaction force to generate a friction torque which prevents the nut 42 from freely rotating on the bolt 41, so that the nut 42 is fastened on the outer surface of the bolt 41, thereby preventing the nut 42 from being loosened from the bolt 41 under the condition that the generator rotates at a high speed, and ensuring the operation safety of the device and the personal safety of the working personnel.
In another alternative embodiment of the present invention, the pole lead 21 of the magnetic pole 2 is in the shape of a sheet and is adapted to be attached to the end of the connecting piece 3.
In this embodiment, such an arrangement can facilitate the fixed connection between the pole lead 21 and the connecting piece 3, so that the installation is more secure.
The utility model discloses a method for using of temperature monitoring structure of generator magnetic pole lead wire as follows:
fixing the temperature sensor 5 on the bearing plate 51, and fixedly connecting the bearing plate 51 and the connecting sheet 3 by using the fixing piece 4 through a fixing hole 511 on the bearing plate 51;
fixing holes corresponding to the fixing holes 511 are formed in the connecting sheet 3 and the magnetic pole lead 21, and the bearing plate 51, the connecting sheet 3 and the magnetic pole lead 21 are connected in a penetrating manner through the fixing holes, so that the temperature sensor 5 can monitor the temperature state of the magnetic pole lead 21;
or, utilize the cotton will after 5 parcel of temperature sensor live, will be lived by the cotton parcel through the insulating cement that has insulating effect temperature sensor 5 firm bonding in on connection piece 3, connection piece 3 with be equipped with to the fixed orifices that corresponds on the magnetic pole lead wire 21, utilize mounting 4 passes the fixed orifices will connection piece 3 with magnetic pole lead wire 21 fixed connection makes temperature sensor 5 can monitor the temperature status of magnetic pole lead wire 21.
The above-mentioned of the utility model is in the embodiment, the temperature monitoring structure of generator magnetic pole lead wire adopts wireless passive temperature sensor 5 is right magnetic pole lead wire 21 carries out temperature monitoring, under the condition that does not influence generator unit normal operating, has guaranteed the operation safety of equipment to and staff's personal safety, thereby realize the effective promotion of generator unit equipment operational reliability.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A temperature monitoring structure of a generator pole lead, comprising:
the generator rotor center body (1), at least two magnetic poles (2) are arranged on the periphery of the generator rotor center body (1), and a magnetic pole lead (21) is arranged at the end part of each magnetic pole (2);
the connecting piece (3) is arranged between two adjacent magnetic poles (2) and is suitable for connecting magnetic pole leads (21) of the two adjacent magnetic poles (2);
a fixing element (4), said fixing element (4) being suitable for fixing a pole lead (21) of said pole (2) to said tab (3);
the temperature sensor (5) is arranged on the connecting piece (3) and is suitable for monitoring the temperature of the connecting piece (3).
2. Temperature monitoring structure of generator pole leads according to claim 1, characterized in that the temperature sensor (5) comprises:
the bearing plate (51), the bearing plate (51) covers the connecting sheet (3) and is fixedly connected with the connecting sheet (3);
the temperature sensor chip (52) is arranged on the bearing plate (51) and fixedly connected with the bearing plate (51).
3. The structure for monitoring the temperature of a pole lead of a generator according to claim 2, wherein the bearing plate (51) is provided with at least two fixing holes (511), and the temperature sensor (5) is adapted to be mounted on the connecting piece (3) through the fixing holes (511).
4. Temperature monitoring structure of generator pole leads according to claim 1, characterized in that the temperature sensor (5) comprises:
a temperature sensor probe (53), the temperature sensor probe (53) being adapted to monitor the temperature of the connection pad (3);
the connecting wire (54), the said connecting wire (54) is fixedly connected with said temperature sensor cervix (53);
and the antenna (55), wherein the antenna (55) is fixedly connected with the end part of the connecting wire (54).
5. Temperature monitoring structure of generator pole lead according to claim 4, characterized in that the temperature sensor (5) is provided with an adhesive layer outside, which is adapted to adhere the temperature sensor (5) to the tab (3).
6. The temperature monitoring structure of the generator pole lead according to claim 5, characterized in that an isolation layer is further arranged between the temperature sensor (5) and the bonding layer.
7. The structure for monitoring the temperature of a pole lead of an electric generator according to claim 1, characterized in that said fixing member (4) comprises:
the outer surface of the bolt (41) is provided with an external thread and is suitable for penetrating through the connecting piece (3) and a magnetic pole lead (21) of the magnetic pole (2);
the inner surface of the nut (42) is provided with internal threads and is suitable for being in threaded connection with the bolt (41) and fixing the bolt (41).
8. The temperature monitoring structure of a generator pole lead of claim 7, further comprising: and the friction ring (421), wherein the friction ring (421) is fixed on the end surface of the nut (42).
9. The temperature monitoring structure of a generator pole lead according to claim 8, characterized in that at least two spring tabs (4211) are provided on the inner wall of the friction ring (421), the spring tabs (4211) are abutted against the external thread, so that the nut (42) is fastened to the outer surface of the bolt (41).
10. Temperature monitoring structure of generator pole leads according to claim 9, characterized in that the pole leads (21) of the poles (2) are in the form of tabs adapted to abut the ends of the connection pieces (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527694.7U CN218724864U (en) | 2022-09-23 | 2022-09-23 | Temperature monitoring structure of generator magnetic pole lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527694.7U CN218724864U (en) | 2022-09-23 | 2022-09-23 | Temperature monitoring structure of generator magnetic pole lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218724864U true CN218724864U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222527694.7U Active CN218724864U (en) | 2022-09-23 | 2022-09-23 | Temperature monitoring structure of generator magnetic pole lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218724864U (en) |
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2022
- 2022-09-23 CN CN202222527694.7U patent/CN218724864U/en active Active
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