CN204255527U - Heavy motor stator bar interlayer temperature measurement structure - Google Patents
Heavy motor stator bar interlayer temperature measurement structure Download PDFInfo
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- CN204255527U CN204255527U CN201420784666.6U CN201420784666U CN204255527U CN 204255527 U CN204255527 U CN 204255527U CN 201420784666 U CN201420784666 U CN 201420784666U CN 204255527 U CN204255527 U CN 204255527U
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- stator bar
- motor stator
- sensing probe
- insulation shell
- heavy motor
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Abstract
The utility model discloses a kind of heavy motor stator bar interlayer temperature measurement structure, comprise insulation shell, demodulator of PM signal PM, it also comprises fluorescence type temperature sensing probe, extended fiber, described insulation shell is rectangular parallelepiped, the side of described insulation shell has axial hole, described fluorescence type temperature sensing probe is made up of optical fiber and fluorescence coating, described fluorescence coating ultraviolet light polymerization glue-line is coated in one end of optical fiber, one end of described fluorescence type temperature sensing probe coating fluorescence coating is placed in the penetralia of axial hole, described fluorescence type temperature sensing probe is encapsulated in axial hole by heat conduction glue-line, described demodulator of PM signal PM is by the other end of extended fiber connecting fiber.The utility model has good electromagnetism insensitivity, and size sensor is little, reliable and stable, intrinsic safety type, carries out thermometric more efficiently and accurately under can be implemented in the environment of the high voltage of heavy motor stator bar interlayer, high-intensity magnetic field to stator bar interlayer.
Description
Technical field
The utility model relates to Fibre Optical Sensor thermometry field, refers to a kind of heavy motor stator bar interlayer temperature measurement structure particularly.
Background technology
Large generator stator bar interlayer temperature affects the electrical machine insulation life-span, controls the key that stator bar temperature is motor safety reliability service, monitors line rod temperature therefore accurately, in real time, reliably and has great importance.
Current existing heavy motor stator bar interlayer thermometric adopts platinum resistance or thermopair mode mostly, all by electric signal measurement, transmission, transmission medium wire is metal, under forceful electric power, magnetic fields, very easily disturbed, cannot correct measurement, and metallics easily produces the problems such as electric arc, corona, heating under forceful electric power, magnetic fields, causes larger harm; , there is the easily problem such as drift, debug difficulties in the optical-fiber temperature measuring technology of other non-fluorescence modes, more difficultly to reach accurately, the demand of measurement heavy motor stator bar interlayer temperature in real time.
Summary of the invention
The purpose of this utility model will provide a kind of heavy motor stator bar interlayer temperature measurement structure exactly, this probe has good electromagnetism insensitivity, size sensor is little, reliable and stable, long-life, intrinsic safety type, under can be implemented in the environment of the high voltage of heavy motor stator bar interlayer, high-intensity magnetic field, stator bar interlayer is carried out more efficiently, reliably, thermometric exactly.
For realizing this object, a kind of heavy motor stator bar interlayer temperature measurement structure designed by the utility model, comprise insulation shell, demodulator of PM signal PM, it is characterized in that: it also comprises fluorescence type temperature sensing probe, extended fiber, described insulation shell is rectangular parallelepiped, the side of described insulation shell has axial hole, described fluorescence type temperature sensing probe is made up of optical fiber and fluorescence coating, described fluorescence coating is coated in one end of optical fiber by ultraviolet light polymerization glue-line, one end of described fluorescence type temperature sensing probe coating fluorescence coating is placed in the penetralia of axial hole, described fluorescence type temperature sensing probe is encapsulated in axial hole by heat conduction glue-line, described demodulator of PM signal PM is by the other end of extended fiber connecting fiber.
Further, the length of described insulation shell is 5cm ~ 7cm, and wide is 1.5cm ~ 2.5cm, and height is 0.20cm ~ 0.25cm.
Further, the aperture of described axial hole is circular, extends horizontally to the middle part of insulation shell 1.
Further, the diameter of described axial hole is 0.2cm ~ 0.4cm.
Further, insulation shell is epoxy resin housing or PTFE housing body.
The beneficial effects of the utility model are: this heavy motor stator bar interlayer temperature measurement structure adopts senser element and the optical signal transmission passage of optical principle, there is electromagnetism interference, reliable and stable, microsize, the feature such as high precision and long-life, wherein, fluorescence type temperature sensing probe utilizes the temperature characterisitic of the fluorescent radiation of phosphide to design: the trace rare-earth phosphorus compound being placed in optical fiber one end, penetrate rear excitation by ultraviolet pulse illumination to fluoresce, phosphorescence afterglow duration can vary with temperature and change, become the function of temperature, thus calculate dut temperature, in thermometric speed, precision and stability aspect is all much higher than electric information thermometric and other Fiber Optic Pyrometers.
Generally speaking the utility model can adapt to the testing environment of heavy motor stator bar interlayer high voltage and big current better, fundamentally solve the defect of existing heavy motor stator bar interlayer temp measuring system, heavy motor thermometric is realized completely efficient, accurate, reliable and stable.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is sectional view of the present utility model.
Wherein, 1-insulation shell, 2-fluorescence type temperature sensing probe, 3-demodulator of PM signal PM, 4-axial hole, 5-optical fiber, 6-fluorescence coating, 7-ultraviolet light polymerization glue-line, 8-heat conduction glue-line, 9-extended fiber.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
A kind of heavy motor stator bar interlayer temperature measurement structure shown in Fig. 1 and Fig. 2, comprise insulation shell 1, demodulator of PM signal PM 3, it also comprises fluorescence type temperature sensing probe 2, extended fiber 9, described insulation shell 1 is rectangular parallelepiped, the side of described insulation shell 1 has axial hole 4, described fluorescence type temperature sensing probe 2 is made up of optical fiber 5 and fluorescence coating 6, described fluorescence coating 6 is coated in one end of optical fiber 5 by ultraviolet light polymerization glue-line 7, one end that described fluorescence type temperature sensing probe 2 applies fluorescence coating 6 is placed in the penetralia of axial hole 4, described fluorescence type temperature sensing probe 2 is encapsulated in axial hole 4 by heat conduction glue-line 8, described demodulator of PM signal PM 3 is by extended fiber 9, the other end of connecting fiber 5.When measuring heavy motor stator bar interlayer temperature, the utility model being inserted stator bar interlayer is provided with in the filler strip groove of filler strip, perception stator bar interlayer temperature is carried out by measuring temperature in filler strip groove, temperature data is converted to light signal and is passed to demodulator of PM signal PM 3 by optical fiber 5 and extended fiber 9 by fluorescence coating 6, demodulator of PM signal PM 3 changes into the electric signal carrying temperature information with regard to the light signal carrying temperature information, thus the running status of monitoring motor.Fluorescence type temperature sensing probe has the characteristic such as stable, long-life, essential safety, High-Voltage Insulation, electromagnetism interference reliably and with long-term, thoroughly compensate for the defect of platinum resistor temperature measuring original paper, heavy motor thermometric is realized completely reliable and stable, all the life without the need to changing and verification.
In technique scheme, ultraviolet light polymerization glue-line 7 and heat conduction glue-line 8 all have the highest high temperature resistant temperature of good resistance to elevated temperatures can reach 150 degree.
Above-mentioned ultraviolet light polymerization glue-line 7 when light signal by time decay less.
Above-mentioned heat conduction glue-line 8 has good bonding strength.
In such scheme, the length of described insulation shell 1 is 5cm ~ 7cm, wide is 1.5cm ~ 2.5cm, height is 0.20cm ~ 0.25cm, less than conventional art temperature-sensing probe volume, heavy motor winding can be arranged on more easily inner, directly can measure the maximum temperature of heavy motor inner heat point, so just can accomplish Real-Time Monitoring, monitoring temperature, predict, prevent accident, simultaneously Real-time Collection service data, the insulation life of predict device, the actual load ability of judgment device, for can equipment overload safe operation provide scientific basis, increases economic efficiency.
In such scheme, the aperture of described axial hole 4 is circular, and the diameter in hole is 0.2cm ~ 0.4cm, extends horizontally to the middle part of insulation shell 1.
In such scheme, described insulation shell 1 is epoxy resin housing or PTFE housing body.This housing all has good insulating property and resistance to elevated temperatures.
The above; be only embodiment of the present utility model, it should be pointed out that any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a heavy motor stator bar interlayer temperature measurement structure, comprise insulation shell (1), demodulator of PM signal PM (3), it is characterized in that: it also comprises fluorescence type temperature sensing probe (2), extended fiber (9), described insulation shell (1) is rectangular parallelepiped, the side of described insulation shell (1) has axial hole (4), described fluorescence type temperature sensing probe (2) is made up of optical fiber (5) and fluorescence coating (6), described fluorescence coating (6) is coated in one end of optical fiber (5) by ultraviolet light polymerization glue-line (7), one end of described fluorescence type temperature sensing probe (2) coating fluorescence coating (6) is placed in the penetralia of axial hole (4), described fluorescence type temperature sensing probe (2) is encapsulated in axial hole (4) by heat conduction glue-line (8), described demodulator of PM signal PM (3) is by the other end of extended fiber (9) connecting fiber (5).
2. a kind of heavy motor stator bar interlayer temperature measurement structure according to claim 1, it is characterized in that: the length of described insulation shell (1) is 5cm ~ 7cm, wide is 1.5cm ~ 2.5cm, and height is 0.20cm ~ 0.25cm.
3. a kind of heavy motor stator bar interlayer temperature measurement structure according to claim 1, is characterized in that: the aperture of described axial hole (4) is for circular.
4. a kind of heavy motor stator bar interlayer temperature measurement structure according to claim 3, is characterized in that: the bore dia of described axial hole (4) is 0.2cm ~ 0.4cm.
5. a kind of heavy motor stator bar interlayer temperature measurement structure according to claim 1, is characterized in that: described insulation shell (1) is epoxy resin housing or PTFE housing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784666.6U CN204255527U (en) | 2014-12-12 | 2014-12-12 | Heavy motor stator bar interlayer temperature measurement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784666.6U CN204255527U (en) | 2014-12-12 | 2014-12-12 | Heavy motor stator bar interlayer temperature measurement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255527U true CN204255527U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784666.6U Active CN204255527U (en) | 2014-12-12 | 2014-12-12 | Heavy motor stator bar interlayer temperature measurement structure |
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| CN (1) | CN204255527U (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 |
-
2014
- 2014-12-12 CN CN201420784666.6U patent/CN204255527U/en active Active
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 |
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| GR01 | Patent grant |