CN204030866U - A kind of temperature measuring equipment for hydraulic generator stator and rotor windings - Google Patents

A kind of temperature measuring equipment for hydraulic generator stator and rotor windings Download PDF

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Publication number
CN204030866U
CN204030866U CN201420325063.XU CN201420325063U CN204030866U CN 204030866 U CN204030866 U CN 204030866U CN 201420325063 U CN201420325063 U CN 201420325063U CN 204030866 U CN204030866 U CN 204030866U
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temperature
wireless
stator
reflector
wireless receiving
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CN201420325063.XU
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铎林
陈显芳
郭跃川
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Dongfang Electric Machinery Co Ltd DEC
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Dongfang Electric Machinery Co Ltd DEC
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Abstract

The utility model discloses a kind of temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer be arranged on outside hydraulic generator fan housing, it is characterized in that: also comprise and be arranged on generator unit stator and epitrochanterian wireless temperature reflector respectively, be arranged on the install bin on fan housing inwall and be arranged on the wireless receiving display in install bin, described host computer is connected with wireless receiving display by communication cable.The utility model, by the cooperation of wireless temperature reflector, wireless receiving display and host computer, can carry out effective online long-term wireless temperature measurement continuously to stator winding and rotor windings, ensure temperature measurement accuracy and reliability.

Description

A kind of temperature measuring equipment for hydraulic generator stator and rotor windings
Technical field
The utility model relates to technical field of hydraulic generators, particularly relates to a kind of temperature measuring equipment for measuring hydraulic generator stator winding and rotor windings temperature.
Background technology
Water hydro-generator stator, also claims stator winding, is combined by the copper cash rod of hundreds of root to more than 1,000, and several threads rod is in one group of wire casing being embedded in the stator core built up by silicon steel sheet.During electrical power generators, if the temperature of stator winding exceedes setting for a long time, will coil insulation be damaged, and then damage generator.So, stator slot and line rod interlayer are provided with temperature monitoring point, carry out long-term online temperature detection continuously.All the time, the implementation that the long-term on-line continuous of stator temperature is measured is: when manufacturing generator, in advance temperature sensor, i.e. platinum resistance thermometer sensor, be embedded in stator slot and the excellent interlayer of line, by external lead wire, the temperature signal that transducer detects is transferred to device for detecting temperature or computer, after carrying out analyzing and processing, then sends various alarm signal and control signal.Generator, once manufacture complete, just has no idea to increase temperature monitoring point and device for detecting temperature again, also has no idea to change temperature sensor.Especially, after unit commitment runs, if need to increase point for measuring temperature again according to operation, or temperature sensor embedding is in advance damaged, or in order to scientific research, need the temperature data recording an all stator bar of generator over a period to come, then only at the end of stator bar binding temperature sensor, each transducer is again by three connecting lead wires and a shielding conductor access terminal box.If a certain high-rating generator needs increase by 720 points for measuring temperature, just must use 720 three-core shielding cables, increase by 2880 lead-in wires; Configure multiple terminal box by these lead-in wires according to circumference nearby mode access terminal box and gather, then with cable, temperature signal is transferred in temperature signal collection cabinet, can greatly increases cost and maintenance workload like this.
The collection of temperature is also realized by wireless temperature reflector, wireless temperature reflector is collection temperature-sensing element, wireless transmitter module, long-acting battery are encapsulated in temperature sensor in the shell of a high insulation resistance together, its temperature measurement range is-55 DEG C ~+125 DEG C, signal transmission frequencies is generally 2.4GHz, and the transmitting cycle is 1-180s.
Publication number is CN 201322650, publication date is the Multi-point infrared temperature measuring transmission device that the Chinese patent literature on October 07th, 2009 discloses a kind of hydraulic generator stator winding, comprise generator unit stator winding, upper collecting ring pipe, supporting steel frame, ferrule fitting, infrared radiation thermometer, rail system, stepping motor, railcar and ground receiving system; Generator unit stator winding upper end is connected with upper collecting ring pipe by upper insulation skirt, and upper collecting ring pipe is connected with supporting steel frame by ferrule fitting; Supporting steel frame is connected with rail system; Rail system is concentric with upper collecting ring pipe, be positioned at the side-lower of collecting ring pipe, railcar is moved on rail system by driving stepper motor, is placed in the fluid upper end of the focus IR radiation alignment lens generator unit stator winding of the infrared radiation thermometer in railcar.
Although this patent documentation can carry out contactless measuring temperature in charged mode to generator unit stator full circle, simplified wiring by the mode of infrared measurement of temperature, still there is following defect:
One, all there is the insulation booth that 3-5mm is thick the outside of the upper end of stator winding, the ray that the amasthenic lens of infrared-ray sends must can penetrate insulation booth, not so detected at all is less than the temperature of stator end in insulation booth, or can not distinguish the surface temperature of the line stick end in surface temperature or insulation booth that the temperature detected is insulation booth.
Two, the upper end of stator winding is along the circumferential direction divided into 2 layers side by side, some places or even 3 layers, and the amasthenic lens of the infrared radiation thermometer on track cannot scan the line stick end of back layer;
During electrical power generators, the focus IR radiation camera lens on track is with electric wire along with stepping motor is at stator upper end and generator amature upper direction, and the parts of this rotary motion can be subject to the restriction of power station unit safe operation code.
Three, infrared temperature measuring transmission device must be arranged in the environment of highfield high-intensity magnetic field for a long time, and the environment of highfield high-intensity magnetic field can cause infrared radiation thermometer to output signal distortion, fluctuation range is large.
Four once the stepping motor in railcar quits work, and the ultrared amasthenic lens of movement thereupon also just can not carry out cycle detection work.
Five, infrared measurement of temperature mode is also by the impact of measured object surface roughness, ambient temperature, smog, dust, directly causes certainty of measurement to reduce, should not as the long-term on-Line Monitor Device continuously of hydraulic generator.
Utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of temperature measuring equipment for hydraulic generator stator and rotor windings, the utility model is by the cooperation of wireless temperature reflector, wireless receiving display and host computer, effective online long-term wireless temperature measurement continuously can be carried out to stator winding and rotor windings, ensure temperature measurement accuracy and reliability.
The technical solution adopted in the utility model is:
A kind of temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer be arranged on outside hydraulic generator fan housing, it is characterized in that: also comprise and be arranged on generator unit stator and epitrochanterian wireless temperature reflector respectively, be arranged on the install bin on fan housing inwall and be arranged on the wireless receiving display in install bin, described host computer is connected with wireless receiving display by communication cable.
Described wireless temperature reflector is arranged on generator unit stator and rotor respectively by high temperature strapping or conducting resinl.
Described wireless receiving display is at least two, and arbitrary neighborhood two wireless receiving displays are connected each other by communication cable.
The temperature-sensing element of described wireless temperature reflector is platinum resistance thermometer sensor.
During use, be arranged in install bin by one or more wireless receiving display, arbitrary neighborhood two wireless receiving displays are connected each other by communication cable, are arranged on by install bin on the fan housing inwall of hydraulic generator; After the measuring surface of wireless temperature reflector is coated conducting resinl, be attached to the position plane position of stator end or rotor needing measuring tempeature, then with high temperature strapping the two firmly bound and be combined as a whole.So no matter how generator changes in running status or inactive state, testee or ambient temperature, tested position has friction to occur, and can ensure that wireless temperature reflector and tested position fit tightly; One_to_one corresponding is arranged in the respective channel address of the numbering of wireless temperature reflector and wireless receiving display; The host computer be arranged on outside hydraulic generator fan housing is connected by communication cable and wireless receiving display; Wireless temperature reflector transmits real time temperature data by the wireless transmitter module of self to wireless receiving display.Wireless temperature reflector can work in highfield high-intensity magnetic field, the conductive environment≤500kV of installation position; The electricity of battery can ensure the time limit >=5 year of wireless temperature reflector trouble free service; The temperature measurement range of built-in platinum resistance thermometer sensor:-55 DEG C ~+125 DEG C; Certainty of measurement: ± 0.5 DEG C (when ambient temperature is-20 ~+80 DEG C).When wireless temperature reflector is not triggered, be in off position, once after triggering work, just work continuously for a long time, the temperature signal at tested position is emitted in electromagnetic mode according to setting cycle, the distance≤100m between wireless temperature reflector and wireless receiving display; The wireless receiving display being arranged on the install bin of the distance≤50m of the distance wireless temperature reflector be positioned on fan housing wall can receive the electromagnetic wave signal that multiple wireless temperature reflector sends simultaneously, complete the collection of measurement data, Temperature Quantity conversion, in real time display, output alarm are carried out to data and is outputed signal to host computer by communication port, thus effective online long-term wireless temperature measurement is continuously carried out to stator winding and rotor windings, ensure temperature measurement accuracy and reliability.
The beneficial effects of the utility model are mainly manifested in the following aspects:
One, the utility model and publication number are CN 201322650, publication date is that the Chinese patent literature on October 07th, 2009 is compared, by being arranged on generator unit stator respectively and epitrochanterian wireless temperature reflector is launched with the temperature signal of the mode of radio magnetic wave by measured point, receive for wireless receiving display, the real-time displays temperature value of wireless receiving display, real time temperature data are transferred to host computer by communication cable in digital quantity mode, and by compared with the alarm temperature value preset, when the temperature of measurand rises to setting alarm temperature value, wireless receiving display sends switching value alarm signal, switching value alarm signal is transferred in host computer by communication cable, host computer carries out reporting to the police or action relevant device, temperature sensing device due to wireless temperature reflector is platinum resistance thermometer sensor, meet the regulation of relevant industries to temperature sensing device, and adopt radio magnetic wave transmission with wireless receiving display, do not need cable, thus monitoring temperature can be carried out to stator winding and rotor windings for a long time, online, continuously, ensure temperature measurement accuracy and reliability.
Two, the utility model and publication number are CN 201322650, publication date is that the Chinese patent literature on October 07th, 2009 is compared, wireless temperature reflector is arranged on generator unit stator and rotor by high temperature strapping or conducting resinl respectively, wireless temperature reflector can not only be made to be close on generator unit stator and rotor, to ensure the good heat transfer effect of wireless temperature reflector and generator unit stator and rotor, thus improve the temperature measurement accuracy of wireless temperature reflector, and dismounting and replacing all quite convenient.
Three, the utility model and publication number are CN 201322650, publication date is that the Chinese patent literature on October 07th, 2009 is compared, wherein wireless temperature reflector can be work in the environment of the conductive environment≤500kV of 1.6 teslas and above, installation position thereof in magnetic field intensity, and temperature measurement range is-55 DEG C ~+125 DEG C; Wireless receiving display can work in the high-intensity magnetic field of temperature≤70 DEG C, strong electric field environment, compared to infrared radiation thermometer, there is not output signal distortion, problem that fluctuation range is large, thus can effective guarantee job stability and guarantee the accuracy of detected temperatures.
Four, the utility model and publication number are CN 201322650, publication date is that the Chinese patent literature on October 07th, 2009 is compared, the temperature-sensing element of wireless temperature reflector adopts platinum resistance thermometer sensor, temperature measurement range-55 DEG C ~+125 DEG C, regulation and the temperature survey demand of relevant industries can be met, and not influenced by ambient temperature, guarantee the accuracy of temperature detection.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Mark in figure: 1, host computer, 2, wireless temperature reflector, 3, install bin, 4, wireless receiving display.
Embodiment
Embodiment 1
A kind of temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer 1 be arranged on outside hydraulic generator fan housing, also comprise the wireless receiving display 4 being arranged on generator unit stator and epitrochanterian wireless temperature reflector 2 respectively, being arranged on the install bin 3 on fan housing inwall and being arranged in install bin 3, described host computer 1 is connected with wireless receiving display 4 by communication cable.
The present embodiment is the most basic execution mode, structure is simple, wireless temperature reflector 2 transmits in the mode of radio magnetic wave, wireless receiving display 4 collection receives electromagnetic wave signal, and data carry out Temperature Quantity conversion to the received signal, wireless receiving display 4 is displays temperature value in real time, real time temperature data are transferred to host computer by communication cable in digital quantity mode, and by compared with the alarm temperature value preset, when the temperature of measurand rises to setting alarm temperature value, send switching value alarm signal, switching value alarm signal is transferred in host computer 1 by communication cable, host computer 1 carries out reporting to the police or action relevant device.Because wireless temperature reflector 2 and wireless receiving display 4 adopt radio magnetic wave communication, do not need cable, can realize for a long time, online, continuously temperature monitoring carried out to stator winding and rotor.
Embodiment 2
A kind of temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer 1 be arranged on outside hydraulic generator fan housing, also comprise the wireless receiving display 4 being arranged on generator unit stator and epitrochanterian wireless temperature reflector 2 respectively, being arranged on the install bin 3 on fan housing inwall and being arranged in install bin 3, described host computer 1 is connected with wireless receiving display 4 by communication cable.
Described wireless temperature reflector 2 is arranged on generator unit stator and rotor respectively by high temperature strapping or conducting resinl.
The present embodiment is a better embodiment, wireless temperature reflector 2 is arranged on generator unit stator and rotor by high temperature strapping or conducting resinl respectively, wireless temperature reflector 2 can not only be made to be close on generator unit stator and rotor, to ensure the good heat transfer effect of wireless temperature reflector 2 and generator unit stator and rotor, thus improve the temperature measurement accuracy of wireless temperature reflector 2, and dismounting and replacing all quite convenient.
Embodiment 3
A kind of temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer 1 be arranged on outside hydraulic generator fan housing, also comprise the wireless receiving display 4 being arranged on generator unit stator and epitrochanterian wireless temperature reflector 2 respectively, being arranged on the install bin 3 on fan housing inwall and being arranged in install bin 3, described host computer 1 is connected with wireless receiving display 4 by communication cable.
Described wireless temperature reflector 2 is arranged on generator unit stator and rotor respectively by high temperature strapping or conducting resinl.
Described wireless receiving display 4 is at least two, and arbitrary neighborhood two wireless receiving displays 4 are connected each other by communication cable.The temperature-sensing element of described wireless temperature reflector 2 is platinum resistance thermometer sensor.
The present embodiment is preferred forms, the temperature-sensing element of wireless temperature reflector 2 adopts platinum resistance thermometer sensor, and temperature measurement range-55 DEG C ~+125 DEG C, can meet regulation and the temperature survey demand of relevant industries, and not influenced by ambient temperature, guarantee the accuracy of temperature detection.
The utility model is not limited to above-described embodiment; according to the description of above-described embodiment; those of ordinary skill in the art also can make some apparent changes to the utility model; such as host computer is replaced with supervising device, but these changes all should fall within the protection range of the utility model claim.

Claims (4)

1. the temperature measuring equipment for hydraulic generator stator and rotor windings, comprise the host computer (1) be arranged on outside hydraulic generator fan housing, it is characterized in that: also comprise the wireless receiving display (4) being arranged on generator unit stator and epitrochanterian wireless temperature reflector (2) respectively, being arranged on the install bin (3) on fan housing inwall and being arranged in install bin (3), described host computer (1) is connected with wireless receiving display (4) by communication cable.
2. a kind of temperature measuring equipment for hydraulic generator stator and rotor windings according to claim 1, is characterized in that: described wireless temperature reflector (2) is arranged on generator unit stator and rotor respectively by high temperature strapping or conducting resinl.
3. a kind of temperature measuring equipment for hydraulic generator stator and rotor windings according to claim 1 or 2, it is characterized in that: described wireless receiving display (4) is at least two, arbitrary neighborhood two wireless receiving displays (4) are connected each other by communication cable.
4. a kind of temperature measuring equipment for hydraulic generator stator and rotor windings according to claim 3, is characterized in that: the temperature-sensing element of described wireless temperature reflector (2) is platinum resistance thermometer sensor.
CN201420325063.XU 2014-06-18 2014-06-18 A kind of temperature measuring equipment for hydraulic generator stator and rotor windings Active CN204030866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420325063.XU CN204030866U (en) 2014-06-18 2014-06-18 A kind of temperature measuring equipment for hydraulic generator stator and rotor windings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420325063.XU CN204030866U (en) 2014-06-18 2014-06-18 A kind of temperature measuring equipment for hydraulic generator stator and rotor windings

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Publication Number Publication Date
CN204030866U true CN204030866U (en) 2014-12-17

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896832A (en) * 2016-04-19 2016-08-24 江苏华源防爆电机有限公司 Temperature indicating alarm motor stator
CN106949982A (en) * 2017-01-23 2017-07-14 长沙国通电力科技有限公司 Generator amature wireless temperature measuring device
CN107525823A (en) * 2016-06-20 2017-12-29 新疆金风科技股份有限公司 Monitor the pilot system of the magnetic pole temperature of permanent-magnetic wind driven generator
CN108955941A (en) * 2018-07-25 2018-12-07 西安益程自动化工程有限公司 A kind of generator unit stator and rotor optical fiber temperature measurement system
CN112855410A (en) * 2021-01-20 2021-05-28 昆明理工大学 Hydraulic generator temperature field visual monitoring system and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896832A (en) * 2016-04-19 2016-08-24 江苏华源防爆电机有限公司 Temperature indicating alarm motor stator
CN107525823A (en) * 2016-06-20 2017-12-29 新疆金风科技股份有限公司 Monitor the pilot system of the magnetic pole temperature of permanent-magnetic wind driven generator
CN107525823B (en) * 2016-06-20 2019-11-29 新疆金风科技股份有限公司 Monitor the pilot system of the magnetic pole temperature of permanent-magnetic wind driven generator
CN106949982A (en) * 2017-01-23 2017-07-14 长沙国通电力科技有限公司 Generator amature wireless temperature measuring device
CN108955941A (en) * 2018-07-25 2018-12-07 西安益程自动化工程有限公司 A kind of generator unit stator and rotor optical fiber temperature measurement system
CN112855410A (en) * 2021-01-20 2021-05-28 昆明理工大学 Hydraulic generator temperature field visual monitoring system and construction method thereof

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