CN114184304A - Generator stator bar temperature sensor easy to replace and use method thereof - Google Patents
Generator stator bar temperature sensor easy to replace and use method thereof Download PDFInfo
- Publication number
- CN114184304A CN114184304A CN202111329069.5A CN202111329069A CN114184304A CN 114184304 A CN114184304 A CN 114184304A CN 202111329069 A CN202111329069 A CN 202111329069A CN 114184304 A CN114184304 A CN 114184304A
- Authority
- CN
- China
- Prior art keywords
- sensor
- guide pipe
- stator bar
- generator stator
- protection shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention provides a generator stator bar temperature sensor easy to replace and a using method thereof, the sensor comprises a sensor, a guide pipe and a sensor protection shell, the sensor consists of a connector, a transmission cable and a temperature sensing probe, the two ends of the transmission cable are respectively connected with the connector and the temperature sensing probe, the guide pipe is sleeved on one end of the transmission cable connected with the temperature sensing probe, the sensor protection shell is arranged outside one end of the guide pipe, the sensor protection shell is arranged between layers of a generator stator bar, and the other end of the guide pipe is led out from the top end of a layer filler strip of the generator stator bar, the invention has the beneficial effects that: this application puts into the bar layer in advance with the guiding tube through sensor protection casing when generator production, puts into the temperature monitoring of realizing generator stator bar with the sensor in the guiding tube again after generator production is accomplished, when needing to change the sensor, need not to demolish the bar, and the sensor can directly be changed to simple to use instrument, and temperature measurement performance and use habit are unchangeable after changing.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a temperature sensor, in particular to an easily-replaced generator stator bar temperature sensor and a using method thereof.
[ background of the invention ]
Losses (such as copper loss of a coil bar, iron core loss and friction loss of a bearing bush) in the running of the generator are all expressed in a heat mode, the heat is increased along with the increase of load, the service life of equipment is shortened due to overhigh temperature, and the overhigh temperature is also a main reason for occurrence of abnormal accidents.
The existing method for monitoring the temperature of the stator bar uses a resistance-type temperature sensor based on an electric signal, and also attempts to use an optical fiber temperature sensor based on an optical signal, and the two methods are that in the production process of the stator, interlayer pad strips of partial bar bars are replaced by pad strips with built-in temperature sensors, and the method can effectively monitor the real-time temperature of the stator bar in the operation process, but has a serious problem: after the sensors are arranged once, whether in production or after equipment is put into operation, if the temperature sensors need to be replaced very trouble, all components on the periphery of the fixed sensors need to be disassembled, the sensors can be taken out and replaced, the whole process almost disassembles and reinstalls the whole generator, time and labor are consumed, certain damage can be caused to the generator due to disassembly and assembly, and new potential safety hazards can be brought.
[ summary of the invention ]
The invention aims to solve the problems existing in the conventional method for monitoring the temperature of the stator bar, and provides a generator stator bar temperature sensor easy to replace and a using method thereof.
The invention is realized by the following technical scheme: the utility model provides an easy generator stator bar temperature sensor who changes, includes sensor, guiding tube, sensor protection casing, the sensor comprises connector, transmission cable and temperature sensing probe, transmission cable both ends are connected with connector and temperature sensing probe respectively, one of temperature sensing probe is connected to the transmission cable serves the cover and has closed the guiding tube, the hole diameter of guiding tube is greater than the external diameter of transmission cable, guiding tube one end outside is equipped with sensor protection casing, sensor protection casing installs between the layer of generator stator bar, the guiding tube other end is followed generator stator bar's interlaminar filler strip top and is drawn 0.1 meter-5 meters.
Furthermore, the guide tube is a nonmetal tube with flexibility, the guide tube comprises a flexible sleeve and a guide tube interface, the flexible sleeve is a hollow flexible sleeve with a closed top end, the tail end of the flexible sleeve is fixed in the guide tube interface, and the guide tube interface is a sensor fixing structure.
Furthermore, the outer surface of the flexible sleeve is covered with a tensile layer for increasing the tensile property of the guide tube.
Furthermore, the material of flexible sleeve is high temperature resistant insulating PTFE, FEP, PFA, ETFE or PEEK, the guide tube interface is rigid insulation plastics PEEK or Teflon, the material of tensile layer is insulating stretch-proof aramid fiber, PET or carbon fiber.
Furthermore, the inner diameter of the pipe wall at the top end part of the flexible sleeve is more fit with the temperature sensing probe of the sensor and is reduced, the flexible sleeve is internally provided with heat-conducting, insulating, lubricating and buffering nonvolatile non-solidified insulating oil, the insulating oil is mineral oil or silicone oil, and the top end closed opening of the flexible sleeve is processed in a thermoplastic mode.
Furthermore, the material of the sensor protection shell is epoxy resin.
Further, the shape of the sensor protection shell is the same as the shape of an interlayer gasket of the generator stator bar.
Furthermore, the sensor protection shell is formed by mutually attaching an upper shell and a lower shell, a plurality of guide pipe installation grooves are formed in the attaching surface of the upper shell and/or the lower shell, and the number of the guide pipe installation grooves is consistent with the number of sensors to be protected of the sensor protection shell.
A method for using an easily replaceable generator stator bar temperature sensor comprises the following steps:
s1, during the production of the generator, the sensor protection shell is installed and fixed between layers of the generator stator bar, then the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, or the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, then the sensor protection shell with the guide pipe is installed and fixed between layers of the generator stator bar, before the guide pipe is inserted into the sensor protection shell, a pre-support piece made of PEYE material can be placed in the guide pipe to ensure that the interior of the guide pipe is not flattened and deformed when the sensor is not penetrated for supporting, and the guide pipe is led out from the top end of the interlayer filler strip of the generator stator bar by 0.1-5 meters according to the operation requirement during the installation;
s2, after the generator is produced, the pre-supporting piece is drawn out of the guide pipe, and then the sensor is placed in the guide pipe;
s3, when the sensor needs to be replaced, the generator does not need to be disassembled, the old sensor is directly taken out from the outside of the generator, and the new sensor is placed in the guide pipe, so that the sensor replacement operation can be completed.
The invention has the beneficial effects that: this application puts into the bar layer in advance with the guiding tube through sensor protection casing when generator production, puts into the temperature monitoring of realization to generator stator bar with the sensor in the guiding tube after generator production is accomplished again, and the generator is put into operation the back, when needs change the sensor, need not to demolish the bar, and simple to use instrument can directly change the sensor, and temperature measurement performance and use habit are unchangeable after the change.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic diagram of a sensor structure according to the present invention;
FIG. 4 is a partial cross-sectional view of the tip of a guide tube and its internal sensor of the present invention;
FIG. 5 is a schematic view of a partial structure of a guide tube covered with a tensile layer according to the present invention;
FIG. 6 is a partial cross-sectional view of the tip portion of the guide tube of the present invention having a reduced inner diameter;
reference numerals: 1. a sensor; 11. a connector; 12. a transmission cable; 13. a temperature sensing probe; 2. a guide tube; 21. a flexible sleeve; 22. a guide tube interface; 23. a tensile layer; 24. insulating oil; 3. a sensor protection housing; 31. an upper housing; 32. a lower housing; 33. a guide pipe mounting groove.
[ detailed description ] embodiments
The invention is further described with reference to the accompanying drawings and the detailed description:
as shown in fig. 1, 2, 3, 4, 5, and 6, an easily replaceable generator stator bar temperature sensor includes a sensor 1, a guide pipe 2, and a sensor protection housing 3, where the sensor 1 is composed of a connector 11, a transmission cable 12, and a temperature sensing probe 13, two ends of the transmission cable 12 are respectively connected with the connector 11 and the temperature sensing probe 13, one end of the transmission cable 12 connected with the temperature sensing probe 13 is sleeved with the guide pipe 2, the inner hole diameter of the guide pipe 2 is greater than the outer diameter of the transmission cable 12, the sensor protection housing 3 is arranged outside one end of the guide pipe 2, the sensor protection housing 3 is installed between layers of a generator stator bar, and the other end of the guide pipe 2 is led out from the top end of a filler strip between layers of the generator stator bar by 0.1 meter to 5 meters.
Preferably, the guide tube 2 is a non-metal tube with flexibility, the guide tube 2 includes a flexible sleeve 21 and a guide tube interface 22, the flexible sleeve 21 is a hollow flexible sleeve with a closed top end, the tail end of the flexible sleeve 21 is fixed in the guide tube interface 22, and the guide tube interface 22 is a fixing structure of the sensor 1.
Preferably, the outer surface of the flexible sleeve 21 is covered with a tensile layer for increasing the tensile property of the guide tube 2.
Preferably, the flexible sleeve 21 is made of high temperature resistant and insulating PTFE, FEP, PFA, ETFE or PEEK, the guide tube interface 22 is made of hard insulating plastic PEEK or teflon, and the tensile layer 23 is made of insulating and stretch-proof aramid, PET or carbon fiber.
Preferably, the inner diameter of the top end part of the flexible sleeve 21 is reduced to be more fit with the temperature sensing probe 13 of the sensor 1, the flexible sleeve 21 is internally provided with nonvolatile non-setting insulating oil 24 which is heat-conducting, insulating, lubricating and buffering, the insulating oil 24 is mineral oil or silicone oil, and the top end closed opening of the flexible sleeve 21 is processed in a thermoplastic mode.
Preferably, the material of the sensor protection housing 3 is epoxy resin.
Preferably, the shape of the sensor protection housing 3 is the same as the shape of the interlaminar filler strips of the generator stator bars.
Preferably, the sensor protection housing 3 is formed by mutually attaching an upper housing 31 and a lower housing 32, the attaching surface of the upper housing 31 and/or the lower housing 32 is provided with a plurality of guide tube mounting grooves 33, and the number of the guide tube mounting grooves 33 is consistent with the number of the sensors 1 to be protected of the sensor protection housing 3.
A method for using an easily replaceable generator stator bar temperature sensor comprises the following steps:
s1, during the production of the generator, the sensor protection shell is installed and fixed between layers of the generator stator bar, then the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, or the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, then the sensor protection shell with the guide pipe is installed and fixed between layers of the generator stator bar, before the guide pipe is inserted into the sensor protection shell, a pre-support piece made of PEYE material can be placed in the guide pipe to ensure that the interior of the guide pipe is not flattened and deformed when the sensor is not penetrated for supporting, and the guide pipe is led out from the top end of the interlayer filler strip of the generator stator bar by 0.1-5 meters according to the operation requirement during the installation;
s2, after the generator is produced, the pre-supporting piece is drawn out of the guide pipe, and then the sensor is placed in the guide pipe;
s3, when the sensor needs to be replaced, the generator does not need to be disassembled, the old sensor is directly taken out from the outside of the generator, and the new sensor is placed in the guide pipe, so that the sensor replacement operation can be completed.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. An easily replaceable generator stator bar temperature sensor, characterized by: the sensor comprises a sensor, a guide pipe and a sensor protection shell, wherein the sensor comprises a connector, a transmission cable and a temperature sensing probe, the two ends of the transmission cable are respectively connected with the connector and the temperature sensing probe, one end of the transmission cable, which is connected with the temperature sensing probe, is sleeved with the guide pipe, the inner hole diameter of the guide pipe is larger than the outer diameter of the transmission cable, the sensor protection shell is arranged outside one end of the guide pipe, the sensor protection shell is arranged between layers of a generator stator bar, and the other end of the guide pipe is led out from the top end of an interlayer filler strip of the generator stator bar by 0.1-5 m.
2. An easily replaceable generator stator bar temperature sensor as set forth in claim 1 wherein: the guide tube is a nonmetal tube with flexibility, the guide tube comprises a flexible sleeve and a guide tube interface, the flexible sleeve is a hollow flexible sleeve with a closed top end, the tail end of the flexible sleeve is fixed in the guide tube interface, and the guide tube interface is of a sensor fixing structure.
3. An easily replaceable generator stator bar temperature sensor as set forth in claim 2 wherein: the outer surface of the flexible sleeve is covered with a tensile layer for increasing the tensile property of the guide tube.
4. A readily replaceable generator stator bar temperature sensor as set forth in claim 3 wherein: the material of flexible sleeve pipe is high temperature resistant insulating PTFE, FEP, PFA, ETFE or PEEK, the guide tube interface is rigid insulation plastics PEEK or Teflon, the material of tensile layer is insulating stretch-proof aramid fiber, PET or carbon fiber.
5. An easily replaceable generator stator bar temperature sensor as set forth in claim 2 wherein: the pipe wall of the top end part of the flexible sleeve is subjected to inner diameter reduction treatment which is more attached to a sensor temperature sensing probe, nonvolatile non-setting insulating oil which is heat-conducting, insulating, lubricating and buffering is arranged in the flexible sleeve, the insulating oil is mineral oil or silicone oil, and the top end closed opening of the flexible sleeve is formed by processing in a thermoplastic mode.
6. An easily replaceable generator stator bar temperature sensor as set forth in claim 1 wherein: the sensor protection shell is made of epoxy resin.
7. An easily replaceable generator stator bar temperature sensor as set forth in claim 1 wherein: the shape of the sensor protection shell is the same as that of an interlayer gasket strip of the generator stator bar.
8. An easily replaceable generator stator bar temperature sensor as claimed in claim 7, wherein: the sensor protection shell is formed by mutually attaching an upper shell and a lower shell, a plurality of guide pipe mounting grooves are formed in the attaching surface of the upper shell and/or the lower shell, and the number of the guide pipe mounting grooves is consistent with the number of sensors to be protected of the sensor protection shell.
9. A use method of an easily-replaced generator stator bar temperature sensor is characterized by comprising the following steps:
s1, during the production of the generator, the sensor protection shell is installed and fixed between layers of the generator stator bar, then the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, or the guide pipe is inserted into the guide pipe installation groove of the sensor protection shell, then the sensor protection shell with the guide pipe is installed and fixed between layers of the generator stator bar, before the guide pipe is inserted into the sensor protection shell, a pre-support piece made of PEYE material can be placed in the guide pipe to ensure that the interior of the guide pipe is not flattened and deformed when the sensor is not penetrated for supporting, and the guide pipe is led out from the top end of the interlayer filler strip of the generator stator bar by 0.1-5 meters according to the operation requirement during the installation;
s2, after the generator is produced, the pre-supporting piece is drawn out of the guide pipe, and then the sensor is placed in the guide pipe;
s3, when the sensor needs to be replaced, the generator does not need to be disassembled, the old sensor is directly taken out from the outside of the generator, and the new sensor is placed in the guide pipe, so that the sensor replacement operation can be completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329069.5A CN114184304A (en) | 2021-11-10 | 2021-11-10 | Generator stator bar temperature sensor easy to replace and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329069.5A CN114184304A (en) | 2021-11-10 | 2021-11-10 | Generator stator bar temperature sensor easy to replace and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114184304A true CN114184304A (en) | 2022-03-15 |
Family
ID=80539926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111329069.5A Pending CN114184304A (en) | 2021-11-10 | 2021-11-10 | Generator stator bar temperature sensor easy to replace and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114184304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465776A (en) * | 2021-05-10 | 2021-10-01 | 深圳阿珂法先进科技有限公司 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
| WO2024051207A1 (en) * | 2022-09-06 | 2024-03-14 | 东方电气集团东方电机有限公司 | Temperature measuring apparatus and generator stator |
-
2021
- 2021-11-10 CN CN202111329069.5A patent/CN114184304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465776A (en) * | 2021-05-10 | 2021-10-01 | 深圳阿珂法先进科技有限公司 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
| WO2024051207A1 (en) * | 2022-09-06 | 2024-03-14 | 东方电气集团东方电机有限公司 | Temperature measuring apparatus and generator stator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114184304A (en) | Generator stator bar temperature sensor easy to replace and use method thereof | |
| CN216593856U (en) | Generator stator bar temperature sensor easy to replace | |
| US9828813B2 (en) | Fibre composite rod petroleum well intervention cable | |
| CN201886828U (en) | Photoelectric composite cable with temperature and stress distributively monitored at same time | |
| CN106683766B (en) | piezoelectric cable | |
| CN201570315U (en) | Intelligent temperature measuring composite material core lead | |
| US9188495B2 (en) | Strain sensing cable | |
| KR100968533B1 (en) | Stranded cable having optical fiber sensor | |
| KR20110006881A (en) | Electric cable for application of a wind farm | |
| CN215004005U (en) | Replaceable optical fiber temperature sensor for motor stator and rotor | |
| CN207834988U (en) | A kind of self-rolling high-temperature shielding wave prevention sleeve | |
| CN110132325A (en) | A kind of power cable water inlet sensing device based on stress enhancing structure | |
| CN213483436U (en) | Cold-resistant and oil-resistant high-tensile-resistance cable | |
| CN111305816B (en) | Electrode ring nipple | |
| CN208157096U (en) | Intelligent industrial robot sensing cable | |
| CN207264812U (en) | A kind of on-line temperature monitoring optical fiber composite high-voltage cable | |
| CN208548663U (en) | A kind of novel graphene electric wire | |
| CN207234326U (en) | A kind of carbon fiber casing | |
| CN215183218U (en) | Novel high-precision intelligent instrument signal cable | |
| CN221037755U (en) | Anti-electromagnetic structure for pressure sensor | |
| CN216410432U (en) | Oil-resistant, temperature-resistant and shock-resistant bearing bush thermal resistor | |
| CN218631520U (en) | A insulating guide sleeve for high temperature scene | |
| CN112037974B (en) | Composite material reinforced insulated wire and manufacturing method thereof | |
| CN116009170B (en) | ADSS optical cable ice melting system | |
| CN220208585U (en) | Tensile flexible tinned alloy copper wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |