CN217542181U - Online real-time temperature measuring device for high-rotation-speed rotor coil - Google Patents
Online real-time temperature measuring device for high-rotation-speed rotor coil Download PDFInfo
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- CN217542181U CN217542181U CN202221007172.8U CN202221007172U CN217542181U CN 217542181 U CN217542181 U CN 217542181U CN 202221007172 U CN202221007172 U CN 202221007172U CN 217542181 U CN217542181 U CN 217542181U
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- demodulator
- rotor coil
- temperature measurement
- temperature measuring
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Abstract
The utility model discloses an online real-time temperature measuring device of high rotational speed rotor coil belongs to hydroelectric power generation technical field, including computer and the temperature measurement optic fibre of setting on the rotor, its characterized in that: the motor rotor comprises a rotor coil and a rotor lead connected with the rotor coil, the isolation power is connected with the demodulator and the rotor lead through power cables respectively, a signal transmitter is arranged in the demodulator, the temperature measuring optical fibers are connected with the demodulator, the receiver is connected with the hub through a communication cable, and the hub is connected with a computer. The utility model discloses temperature measurement return circuit simple structure has good interference immunity and security, can ensure temperature measurement reliability and temperature measurement precision.
Description
Technical Field
The utility model relates to hydroelectric power generation technical field especially relates to an online real-time temperature measuring device of high rotational speed rotor coil.
Background
The pumped storage power station has high-efficiency and flexible high-capacity energy storage capacity, and has the functions of peak load regulation and frequency modulation and phase modulation, and is an indispensable energy accumulator and regulator of the current multi-energy structure and highly intelligent power grid. Compared with the traditional unit, the pumped storage unit has the characteristics of high rotating speed, large capacity per pole, high linear speed and frequent working condition conversion. Especially, the heat dissipation and the mechanical strength of the magnetic poles need to be focused, and the full control of the temperature distribution of the rotor coil of the generator motor unit with high rotating speed and large capacity is more and more important, which directly influences the safe and stable operation of the unit. Therefore, the real-time online monitoring and research on the temperature distribution of the rotor coil of the high-speed and high-capacity generator motor is very important.
Chinese patent publication No. CN203949744U, publication No. 2014, 11/19/2014, discloses a temperature measuring device for a rotor coil of a large-sized hydraulic generator, in which a Pt100 platinum thermistor as a temperature sensor is mounted at a position to be measured of the rotor coil, an output signal of the temperature sensor is connected to a signal input end of a data acquisition recorder fixed on a rotor of the generator through a cable, and data transmission is realized between the data acquisition recorder and a wireless data transmission module mounted on the rotor of the generator through an industrial bus. The principle of the large-scale hydraulic generator rotor coil temperature measuring device disclosed in the patent document is that a platinum thermal resistor is used for measuring temperature, temperature signals are transmitted based on electric quantity, and signals are led out by a cable; the probe is large in structure and difficult to fix, and is completely not suitable for a high-rotation-speed unit; moreover, when the anti-interference electromagnetic wave sensor is applied to a strong electromagnetic field, the anti-interference capability is weak.
Chinese patent document No. CN206945170U, published as 2018, 01, 30 discloses a variable speed generator motor rotor three-phase ac excitation bar optical fiber temperature measuring device, which is characterized in that the device is composed of a wired communication system and a wireless communication system, wherein the two systems share an optical fiber thermometer, an optical fiber signal regulator, an internal communication cable, an internal power cable, an external communication cable, an external power cable and an optical fiber temperature measuring control cabinet, wherein one end of the optical fiber thermometer is embedded between an upper layer rotor bar and a lower layer rotor bar, and the other end is connected to the optical fiber signal regulator; one end of the internal communication cable is connected with the optical fiber signal regulator, and the other end of the internal communication cable is divided into two paths which are respectively connected with a wired communication system and a wireless communication system; one end of the internal power cable is connected with the optical fiber signal regulator, and the other end of the internal power cable is divided into two paths which are respectively connected with the wired communication system and the wireless communication system; one end of an external communication cable is connected with the optical fiber temperature measurement control cabinet, and the other end of the external communication cable is divided into two paths which are respectively connected with a wired communication system and a wireless communication system; one end of the external power cable is connected with the optical fiber temperature measurement control cabinet, and the other end of the external power cable is divided into two paths which are respectively connected with the wired communication system and the wireless communication system.
The prior art represented by the patent documents has the problems that the temperature measuring loop has a complex structure, the anti-interference performance and the safety are poor, and the temperature measuring reliability and the temperature measuring precision cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art's defect, provide an online real-time temperature measuring device of high rotational speed rotor coil, the utility model discloses temperature measurement return circuit simple structure has good interference immunity and security, can ensure temperature measurement reliability and temperature measurement precision.
The utility model discloses a following technical scheme realizes:
the utility model provides an online real-time temperature measuring device of high rotational speed rotor coil, includes computer and the temperature measurement optic fibre of setting on the rotor, its characterized in that: the temperature measuring device is characterized by further comprising a receiver and a concentrator which are fixed on the stator, a fixing box which is fixed on the rotor support, a demodulator and an isolation power supply which are arranged in the fixing box, wherein the rotor comprises a rotor coil and a rotor lead which is connected with the rotor coil, the isolation power supply is respectively connected with the demodulator and the rotor lead through power cables, a signal transmitter is arranged in the demodulator, the temperature measuring optical fiber is connected with the demodulator, the receiver is connected with the concentrator through a communication cable, and the concentrator is connected with a computer.
The receiver is a plurality of, and a plurality of receivers are evenly arranged along the stator circumferencial direction.
The temperature measurement optical fiber comprises a temperature measurement probe and a temperature measurement lead connected to the temperature measurement probe, a chute is formed in a copper bar of the rotor coil, the temperature measurement probe is embedded into the chute, heat-resistant sealant is arranged in the chute, and the temperature measurement probe is sealed through the heat-resistant sealant.
And a cover used for packaging the demodulator and isolating the power supply is arranged on the fixed box.
The cross sections of the fixed box, the demodulator and the isolation power supply are square, and the size of the cover is matched with that of the fixed box.
The cover is provided with bolt holes, the bolt holes are connected with bolts, the cover is provided with a stop washer, and the cover is fixed on the fixing box through the bolts and the stop washer.
The working principle of the utility model is as follows:
when the unit operates, exciting current is conducted in a rotor lead, an isolation power supply is connected with a rotor magnetic pole in parallel, the isolation power supply outputs proper voltage and current to supply power to a demodulator with a transmitter according to the actual requirement of the demodulator, a temperature measuring optical fiber transmits a measured temperature signal of a rotor coil of the generator to the demodulator through a signal which can be identified by the optical fiber, the temperature signal is transmitted to a receiver on a stator through the transmitter which is built in the demodulator after being converted into the temperature signal by the demodulator, the receiver transmits the temperature signal to a concentrator through a communication cable, the concentrator transmits the collected temperature signal to a computer through the communication cable, and the computer directly reads the temperature of the rotor coil, so that the online real-time temperature monitoring of the high-speed rotor coil is realized.
The beneficial effects of the utility model mainly show in following aspect:
1. the utility model discloses, the rotor includes rotor coil and the rotor lead wire of being connected with rotor coil, it is connected with demodulator and rotor lead wire through power cable respectively to keep apart the power, be provided with the sender in the demodulator, temperature measurement optic fibre is connected with the demodulator, the receiver passes through communication cable and is connected with the concentrator, the concentrator is connected with the computer, compared with prior art, the demodulator is direct to be got the electricity from keeping apart the power, it directly gets the electricity from the rotor lead wire to keep apart the power, it additionally need not to increase collecting ring disc and brush, it is simple to get the electricity mode, whole temperature measurement circuit design is also simple and reliable more, good interference immunity and security have, can ensure temperature measurement reliability and temperature measurement precision.
2. The utility model discloses, the receiver is a plurality of, and a plurality of receivers are evenly arranged along the stator circumferencial direction, can ensure the temperature signal of reliable and stable receipt after the demodulator conversion.
3. The utility model discloses, temperature measurement optic fibre includes temperature probe and connects the temperature measurement lead wire on temperature probe, and it has the chute to open on rotor coil's the copper bar, and in temperature probe embedding chute, be provided with heat-resisting sealed glue in the chute, temperature probe is sealed through heat-resisting sealed glue, can avoid the temperature measurement lead wire to destroy because too big angle of bending to can ensure the direct stable measurement rotor coil copper temperature of unit operation.
4. The utility model discloses, be provided with the lid that is used for encapsulating the demodulator and keeps apart the power on the fixed box, can prevent that demodulator and isolation power from producing when the unit operation and rocking, ensure stability.
5. The utility model discloses, the cross section of fixed box, demodulator and isolation power is square form, and the size of lid and the big or small looks adaptation of fixed box are convenient for install the demodulator and keep apart the power.
6. The utility model discloses, it has the bolt hole to open on the lid, is connected with the bolt on the bolt hole, is provided with lock washer on the lid, and the lid passes through the bolt and the lock washer is fixed on fixed box, fixed demodulator that can be firm and isolation power, guarantee job stabilization nature and security.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention installed on a partial rotor;
fig. 3 is a schematic structural view of the fixing box of the present invention;
fig. 4 is a schematic structural view of the rotor coil of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
the mark in the figure is: 1. computer, 2, temperature measurement optic fibre, 3, receiver, 4, concentrator, 5, fixed box, 6, demodulator, 7, isolation power supply, 8, rotor coil, 9, rotor lead wire, 10, sender, 11, temperature measurement probe, 12, temperature measurement lead wire, 13, chute, 14, lid, 15, bolt, 16, lock washer.
Detailed Description
Example 1
Referring to fig. 1-3, the online real-time temperature measuring device for the high-rotation-speed rotor coil comprises a computer 1 and a temperature measuring optical fiber 2 arranged on a rotor, and further comprises a receiver 3 and a hub 4 fixed on a stator, a fixing box 5 fixed on a rotor support, a demodulator 6 and an isolation power supply 7 arranged in the fixing box 5, wherein the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, the isolation power supply 7 is respectively connected with the demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, the temperature measuring optical fiber 2 is connected with the demodulator 6, the receiver 3 is connected with the hub 4 through a communication cable, and the hub 4 is connected with the computer 1.
The embodiment is the most basic implementation mode, the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, an isolation power supply 7 is respectively connected with a demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, a temperature measuring optical fiber 2 is connected with the demodulator 6, a receiver 3 is connected with a concentrator 4 through a communication cable, the concentrator 4 is connected with a computer 1, compared with the prior art, the demodulator 6 directly obtains electricity from the isolation power supply 7, the isolation power supply 7 directly obtains electricity from the rotor lead 9, a slip ring disc and an electric brush are not required to be additionally added, the electricity obtaining mode is simple, the whole temperature measuring circuit is simpler and more reliable in design, the anti-interference performance and the safety are good, and the temperature measuring reliability and the temperature measuring precision can be ensured.
Example 2
Referring to fig. 1-5, the online real-time temperature measuring device for the high-speed rotor coil comprises a computer 1 and a temperature measuring optical fiber 2 arranged on a rotor, and further comprises a receiver 3 and a hub 4 fixed on the stator, a fixing box 5 fixed on a rotor support, a demodulator 6 and an isolation power supply 7 arranged in the fixing box 5, wherein the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, the isolation power supply 7 is respectively connected with the demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, the temperature measuring optical fiber 2 is connected with the demodulator 6, the receiver 3 is connected with the hub 4 through a communication cable, and the hub 4 is connected with the computer 1.
The receivers 3 are multiple, and the multiple receivers 3 are uniformly arranged along the circumferential direction of the stator.
The temperature measurement optical fiber 2 comprises a temperature measurement probe 11 and a temperature measurement lead 12 connected to the temperature measurement probe 11, an inclined groove 13 is formed in a copper bar of the rotor coil 8, the temperature measurement probe 11 is embedded into the inclined groove 13, heat-resistant sealant is arranged in the inclined groove 13, and the temperature measurement probe 11 is sealed through the heat-resistant sealant.
In this embodiment, there are a plurality of receivers 3, and the plurality of receivers 3 are uniformly arranged along the circumferential direction of the stator, so as to ensure stable and reliable reception of the temperature signal converted by the demodulator 6.
Temperature measurement optic fibre 2 includes temperature probe 11 and connects the temperature measurement lead wire 12 on temperature probe 11, and it has chute 13 to open on rotor coil 8's the copper bar, and in temperature probe 11 embedding chute 13, be provided with heat-resisting sealed glue in the chute 13, and temperature probe 11 is sealed through heat-resisting sealed glue, can avoid temperature measurement lead wire 12 to destroy because too big angle of bending to can ensure the direct stable 8 copper temperature of measurement rotor coil when the unit moves.
Example 3
Referring to fig. 1-5, the online real-time temperature measuring device for the high-rotation-speed rotor coil comprises a computer 1 and a temperature measuring optical fiber 2 arranged on a rotor, and further comprises a receiver 3 and a hub 4 fixed on a stator, a fixing box 5 fixed on a rotor support, a demodulator 6 and an isolation power supply 7 arranged in the fixing box 5, wherein the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, the isolation power supply 7 is respectively connected with the demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, the temperature measuring optical fiber 2 is connected with the demodulator 6, the receiver 3 is connected with the hub 4 through a communication cable, and the hub 4 is connected with the computer 1.
Further, the receiver 3 is multiple, and the multiple receivers 3 are uniformly arranged along the circumferential direction of the stator.
Furthermore, the temperature measurement optical fiber 2 comprises a temperature measurement probe 11 and a temperature measurement lead 12 connected to the temperature measurement probe 11, a chute 13 is formed in the copper bar of the rotor coil 8, the temperature measurement probe 11 is embedded into the chute 13, heat-resistant sealant is arranged in the chute 13, and the temperature measurement probe 11 is sealed through the heat-resistant sealant.
Further, a cover 14 for enclosing the demodulator 6 and the isolated power supply 7 is provided on the fixing case 5.
In this embodiment, a cover 14 for enclosing the demodulator 6 and the isolated power supply 7 is disposed on the fixing case 5, so as to prevent the demodulator 6 and the isolated power supply 7 from shaking during the operation of the unit and ensure stability.
Example 4
Referring to fig. 1-5, the online real-time temperature measuring device for the high-speed rotor coil comprises a computer 1 and a temperature measuring optical fiber 2 arranged on a rotor, and further comprises a receiver 3 and a hub 4 fixed on the stator, a fixing box 5 fixed on a rotor support, a demodulator 6 and an isolation power supply 7 arranged in the fixing box 5, wherein the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, the isolation power supply 7 is respectively connected with the demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, the temperature measuring optical fiber 2 is connected with the demodulator 6, the receiver 3 is connected with the hub 4 through a communication cable, and the hub 4 is connected with the computer 1.
The receivers 3 are multiple, and the multiple receivers 3 are uniformly arranged along the circumferential direction of the stator.
The temperature measurement optical fiber 2 comprises a temperature measurement probe 11 and a temperature measurement lead 12 connected to the temperature measurement probe 11, a chute 13 is formed in a copper bar of the rotor coil 8, the temperature measurement probe 11 is embedded into the chute 13, heat-resistant sealant is arranged in the chute 13, and the temperature measurement probe 11 is sealed through the heat-resistant sealant.
The stationary box 5 is provided with a cover 14 for enclosing the demodulator 6 and the isolated power supply 7.
The cross sections of the fixed box 5, the demodulator 6 and the isolation power supply 7 are square, and the size of the cover 14 is matched with that of the fixed box 5.
In this embodiment, the cross-section of the fixing box 5, the demodulator 6 and the isolated power supply 7 is square, and the size of the cover 14 is matched with that of the fixing box 5, so that the demodulator 6 and the isolated power supply 7 can be conveniently installed.
Example 5
Referring to fig. 1-5, the online real-time temperature measuring device for the high-speed rotor coil comprises a computer 1 and a temperature measuring optical fiber 2 arranged on a rotor, and further comprises a receiver 3 and a hub 4 fixed on the stator, a fixing box 5 fixed on a rotor support, a demodulator 6 and an isolation power supply 7 arranged in the fixing box 5, wherein the rotor comprises a rotor coil 8 and a rotor lead 9 connected with the rotor coil 8, the isolation power supply 7 is respectively connected with the demodulator 6 and the rotor lead 9 through power cables, a transmitter 10 is arranged in the demodulator 6, the temperature measuring optical fiber 2 is connected with the demodulator 6, the receiver 3 is connected with the hub 4 through a communication cable, and the hub 4 is connected with the computer 1.
The receivers 3 are multiple, and the multiple receivers 3 are uniformly arranged along the circumferential direction of the stator.
The temperature measurement optical fiber 2 comprises a temperature measurement probe 11 and a temperature measurement lead 12 connected to the temperature measurement probe 11, a chute 13 is formed in a copper bar of the rotor coil 8, the temperature measurement probe 11 is embedded into the chute 13, heat-resistant sealant is arranged in the chute 13, and the temperature measurement probe 11 is sealed through the heat-resistant sealant.
A cover 14 for enclosing the demodulator 6 and the isolated power supply 7 is provided on the fixing box 5.
The cross sections of the fixed box 5, the demodulator 6 and the isolation power supply 7 are square, and the size of the cover 14 is matched with that of the fixed box 5.
The cover 14 is provided with bolt holes, the bolt holes are connected with bolts 15, the cover 14 is provided with a stop washer 16, and the cover 14 is fixed on the fixing box 5 through the bolts 15 and the stop washer 16.
In the preferred embodiment of the present invention, the cover 14 is provided with bolt holes, the bolt holes are connected with bolts 15, the cover 14 is provided with a stop washer 16, and the cover 14 is fixed on the fixing box 5 through the bolts 15 and the stop washer 16, so as to firmly fix the demodulator 6 and the isolated power supply 7, and ensure the working stability and safety.
Claims (6)
1. The utility model provides an online real-time temperature measuring device of high rotational speed rotor coil, includes computer (1) and temperature measurement optic fibre (2) of setting on the rotor, its characterized in that: still including fixing receiver (3) and concentrator (4) on the stator, fixing fixed box (5), demodulator (6) and isolation power (7) of setting in fixed box (5) on the rotor support, the rotor includes rotor coil (8) and rotor lead wire (9) be connected with rotor coil (8), and isolation power (7) are connected with demodulator (6) and rotor lead wire (9) through power cable respectively, be provided with signaling apparatus (10) in demodulator (6), temperature measurement optic fibre (2) are connected with demodulator (6), receiver (3) are connected with concentrator (4) through communication cable, and concentrator (4) are connected with computer (1).
2. The high-speed rotor coil online real-time temperature measuring device according to claim 1, characterized in that: the number of the receivers (3) is multiple, and the receivers (3) are uniformly arranged along the circumferential direction of the stator.
3. The high-speed rotor coil online real-time temperature measuring device according to claim 1, characterized in that: temperature measurement optic fibre (2) are opened on the copper bar of rotor coil (8) including temperature probe (11) and temperature measurement lead wire (12) of connection on temperature probe (11) has chute (13), and during temperature probe (11) embedding chute (13), be provided with heat-resisting sealed glue in chute (13), temperature probe (11) are sealed through heat-resisting sealed glue.
4. The high-speed rotor coil online real-time temperature measuring device according to claim 1, characterized in that: and a cover (14) for packaging the demodulator (6) and the isolated power supply (7) is arranged on the fixed box (5).
5. The high-speed rotor coil online real-time temperature measuring device according to claim 4, characterized in that: the cross sections of the fixed box (5), the demodulator (6) and the isolation power supply (7) are square, and the size of the cover (14) is matched with that of the fixed box (5).
6. The high-speed rotor coil online real-time temperature measuring device according to claim 4, characterized in that: the cover (14) is provided with bolt holes, the bolt holes are connected with bolts (15), the cover (14) is provided with a stop washer (16), and the cover (14) is fixed on the fixing box (5) through the bolts (15) and the stop washer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221007172.8U CN217542181U (en) | 2022-04-28 | 2022-04-28 | Online real-time temperature measuring device for high-rotation-speed rotor coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221007172.8U CN217542181U (en) | 2022-04-28 | 2022-04-28 | Online real-time temperature measuring device for high-rotation-speed rotor coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217542181U true CN217542181U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221007172.8U Active CN217542181U (en) | 2022-04-28 | 2022-04-28 | Online real-time temperature measuring device for high-rotation-speed rotor coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217542181U (en) |
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2022
- 2022-04-28 CN CN202221007172.8U patent/CN217542181U/en active Active
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Inventor after: Zhao Changwei Inventor after: He Xin Inventor after: Su Shengwei Inventor after: He Xiaohua Inventor after: Li Chengyu Inventor after: Deng Ying Inventor after: Zhang Yang Inventor after: Xu Yang Inventor after: Li Shanshan Inventor before: Zhao Changwei Inventor before: He Xin Inventor before: Su Weisheng Inventor before: He Xiaohua Inventor before: Li Chengyu Inventor before: Deng Ying Inventor before: Zhang Yang Inventor before: Xu Yang Inventor before: Li Shanshan |