CN102207406A - Anti-interference infrared temperature measurement method and apparatus thereof - Google Patents
Anti-interference infrared temperature measurement method and apparatus thereof Download PDFInfo
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- CN102207406A CN102207406A CN2011100578268A CN201110057826A CN102207406A CN 102207406 A CN102207406 A CN 102207406A CN 2011100578268 A CN2011100578268 A CN 2011100578268A CN 201110057826 A CN201110057826 A CN 201110057826A CN 102207406 A CN102207406 A CN 102207406A
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Abstract
The invention, which can be used for various voltage grade GIS equipment to on-line monitor internal buses and joints so as to provide a monitoring means for safe operation of the GIS equipment, relates to an anti-interference infrared temperature measurement method and an apparatus thereof. The apparatus comprises an infrared temperature sensor and GIS equipment which is full of SF6 seal gas under a pressure of about 0.4MPa. The invention is characterized in that: a seal tank shell of the GIS equipment has a window which is provided with chalcogenide glass; positions of the measured buses and joints are coated with paints which can increase infrared emissing ability; the infrared temperature sensor, which is installed out of the seal tank, on-line collects temperature signals of the measured buses and joints through the chalcogenide glass window of the seal tank; accurate temperature values of the measured buses and joints can be acquired through corrections made by software. An anti-electromagnetic interference effect is good.
Description
Technical field
The present invention relates to a kind of measurement gas insulation in combined electric appliance equipment (GIS) internal bus, connector method of temperature and device, be specially high pressure SF
6The anti-interference Infrared survey method and the device of bus or joint temperature rise in the air seal tank body belong to the high-voltage electrical apparatus set of equipments and measure and the resist technology field.
Background technology
The temperature variations on-line monitoring that GIS equipment bus and connector are in operation, it is the further measure that ensures such high voltage electric equipment safe operation, also need on-line monitoring not impact simultaneously, because heaters such as the bus of GIS equipment and joint are in high voltage, are full of the SF about 0.4MPa to the normal operation of equipment
6In the air seal tank body, need to adopt special method for measurement and device just can finish, the current thermometric mode of power equipment that typically is used for both at home and abroad mainly contains two kinds: Non-contact Infrared Temperature Measurement mode and contact type optical fiber thermometric mode.
Infrared radiation temperature is to be that the principle that is directly proportional is carried out according to the infrared energy that is higher than the object institute radiation of absolute zero with the biquadratic of its absolute temperature, it belongs to contactless temperature-measuring, its advantage is can not change the normal operating condition of thermometric target and collect the target temperature signal, need not contact measured target, shortcoming is that the infrared radiation temperature system often has electronic unit, be subject to electromagnetic field and environmental interference, and thermometric distance, angle, thermometric target emissivity etc. all can constitute influence to infrared measurement of temperature, particularly be applied in the GIS equipment, this is determined by the singularity of GIS equipment than general electrical equipment itself.GIS equipment has another name called SF
6Fully closed combined electric unit, it be by isolating switch, bus, disconnector, current transformer, voltage transformer (VT), lightning arrester, sleeve pipe etc. wherein electric elements be sealed in and combine in the closed tank, be full of the SF of 0.4Mpa left and right sides pressure in the tank body
6Gas is as insulating medium, and its insulating property, arc extinction performance are all much better than air, and switch, bus and connector also are to place the SF that is full of 0.4MPa left and right sides pressure
6In the gas, therefore, both required to obtain the temperature signal of bus by the infrared radiation temperature technology, need used measuring unit to have anti-electromagnetic field and environmental interference again, accurately thermometric distance, angle also need thermometric target emissivity higher, measuring accuracy requirement up to specification.
Chinese invention patent " a kind of device for detecting temperature that is used for high voltage isolation switch contact " (application number: 200910074969.2 applyings date: 2009-07-21) and utility model patent " online temperature continuous monitoring system " (application number: 200920087083.7 applyings date: 2009-07-02) disclosed temperature sensing means is and utilizes infrared temperature sensor to carry out thermometric, but can only be with being exposed to airborne switch contact thermometric; Utility model patent " the online infrared temperature measurement apparatus of high-voltage board " (application number: 200520052061.9 applyings date: 2005-09-30) disclosed, also be a kind of infrared temperature measurement apparatus that exposes in air at room temperature, a kind of anti-interference infrared measurement of temperature method and device of new model necessitate.
Summary of the invention
The objective of the invention is at the described deficiency of background technology, a kind of anti-interference infrared measurement of temperature method and device are provided, can be used for various electric pressure GIS equipment on-line monitoring internal bus, connector, for the GIS equipment safety operation provides monitoring means, by the debugging of varying environment object, draw infrared measurement of temperature in the enforcement along with thermometric distance, SF
6The relational expression of factors vary such as gas concentration, and, draw accurate temperature value by the software correction.
Technical scheme of the present invention is: anti-interference infrared temperature measurement apparatus, and by infrared temperature sensor, be full of 0.4MPa left and right sides pressure SF
6The GIS equipment of sealing gas is formed, and it is characterized in that: have window on the sealable tank shell of described GIS equipment, a kind of energy is installed on the window is seen through the ultrared chalcogenide glass of 8～14 μ m, be full of SF
6Measured bus, connector position in the air seal tank body, be coated with the coating that can increase infrared emittance is housed, infrared temperature sensor is installed in outside the sealable tank, its beneficial effect is: the Installation and Debugging and the anti-electromagnetic-radiation that help the Installation and Debugging infrared temperature sensor disturb, and help real collecting temperature information directly perceived.
Anti-interference infrared measurement of temperature method, it is characterized in that: the sealed shell of tank infrared temperature sensor outward that adopts the aforesaid GIS of being installed in equipment is through the chalcogenide glass window on the described tank body, gather the temperature signal of tested bus and connector is online, again by the software correction, obtain the accurate temperature value of tested bus and connector, its beneficial effect is: help accurately gathering and accounting temperature information.
Technical basis of the present invention is: infrared temperature sensor is a kind of device that utilizes detector heat energy to be converted into electric signal, the distance of its heat energy that receives and thermal source, receiving angle, propagation medium etc. are relevant, convert required various demonstrations or transmission signals to by terminal.
Principle of work of the present invention is: the bus of heating, connector see through the SF of 0.4MPa left and right sides pressure as thermal source
6Transfer to the detector of infrared temperature sensor behind gas, the chalcogenide glass,, can draw its SF by the test of limited number of time with distance, receiving angle and 0.4MPa left and right sides pressure because heater heat energy has the part loss in transmission course
6Gas, chalcogenide glass carry out the software correction to its amount of influence, obtain the temperature value of bus, connector accurately.
Description of drawings
Accompanying drawing 1 is an embodiment of the invention scheme of installation.
Embodiment
Mark in the accompanying drawing:
In the accompanying drawing 1: 1-infrared temperature sensor, 2-packing ring, 3-mounting flange, 4-O-ring seal, 5-GIS shell, 6-chalcogenide glass, 7-GIS equipment bus, 8-SF
6Gas, 9-computing machine, 10-infrared coating.
Below in conjunction with accompanying drawing inventive embodiments is described further:
As shown in Figure 1, anti-interference infrared temperature measurement apparatus is by equipment bus 7 in the infrared temperature sensor 1, packing ring 2, mounting flange 3, O-ring seal 4, chalcogenide glass 6 and the GIS sealed shell of tank that are installed on the GIS sealed shell of tank shell 5 and infrared coating 10, the SF on the bus equipment
6Gas 8 is formed, and also has computing machine 9 and subsidiary fixed software.In Fig. 1, infrared temperature sensor 1 sees through chalcogenide glass 6 and SF
6Gas receives the temperature data of GIS equipment bus 7, and the temperature of online detection instrument bus 7, measured data long-distance transmissions be to computing machine 9, and by correction formula, utilizes software correction.In the present embodiment: it is φ 12mm that infrared temperature sensor 1 is measured a mouthful external diameter, and chalcogenide glass 6 is of a size of φ 45 * 18mm (diameter * thickness), and wherein compression area is the circle of center φ 15mm.
Because the distance of the received heat energy of infrared temperature sensor 1 and thermal source (bus 7), receiving angle, propagation medium etc. are relevant, temperature signal on the bus 7 sees through the detector that transfers to infrared temperature sensor 1 behind SF6 gas 8, the chalcogenide glass 6, therefore, its heat energy will have the part loss in transmission course, test by limited number of time, draw it with distance, receiving angle and SF6 gas 8, chalcogenide glass 6 the amounts of influence to it, by the software correction, can obtain the temperature value of bus, connector accurately.
The correction formula specific embodiment is exemplified below:
Setting bus 7 is 30cm apart from the distance of infrared temperature sensor 1, and the application infra-red material is to increase emissivity, at SF on the bus 7
6Gas pressure intensity is under the 0.35MPa condition, utilize the chalcogenide glass 6 of φ 45 * 18mm to seal after, adopt infrared temperature sensor 1 to collect temperature y on the bus 7 and the relation equation of actual temperature x is:
0.0052x
2+0.0516x+21.418-v＝0
Separate this equation, the pass that draws x and y is:
Similarly, for the measurement of connector, also the same example.
Claims (2)
1. anti-interference infrared temperature measurement apparatus is by infrared temperature sensor, be full of 0.4MPa left and right sides pressure SF
6The GIS equipment of sealing gas is formed, and it is characterized in that: have window on the sealable tank shell of described GIS equipment, a kind of energy is installed on the window is seen through the ultrared chalcogenide glass of 8～14 μ m, be full of SF
6Measured bus, connector position are coated with the coating that can increase infrared emittance are housed in the air seal tank body, and infrared temperature sensor is installed in outside the sealable tank.
2. anti-interference infrared measurement of temperature method, it is characterized in that: the sealed shell of tank infrared temperature sensor outward that adopts the aforesaid GIS of being installed in equipment is through the chalcogenide glass window on the described tank body, gather the temperature signal of tested bus and connector is online, by the software correction, obtain the accurate temperature value of tested bus and connector again.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538975A (en) * | 2012-01-18 | 2012-07-04 | 北京市科海龙华工业自动化仪器有限公司 | Wireless coke oven top vertical flue observation hole on-line real-time monitoring device |
| CN102980679A (en) * | 2012-11-29 | 2013-03-20 | 中国电力科学研究院 | Device and method for measuring interior temperature of GIS equipment by surface acoustic wave sensor |
| CN103162838A (en) * | 2013-04-08 | 2013-06-19 | 华北电力大学 | Method for improving infrared online temperature measuring accuracy of GIS (gas insulated switchgear) metal conductor |
| CN103471719A (en) * | 2013-06-18 | 2013-12-25 | 国家电网公司 | GIS equipment contact temperature monitoring test apparatus |
| CN103575404A (en) * | 2013-11-05 | 2014-02-12 | 国家电网公司 | Detachable internally-arranged infrared temperature measuring device for GIS |
| CN105301395A (en) * | 2015-10-29 | 2016-02-03 | 国网福建省电力有限公司 | SF6 transformer fault early warning apparatus and application method thereof |
| CN106352988A (en) * | 2016-08-29 | 2017-01-25 | 广东电网有限责任公司电力科学研究院 | System of untouched infrared temperature measurement |
| WO2020102973A1 (en) * | 2018-11-20 | 2020-05-28 | Abb Schweiz Ag | Apparatus for monitoring temperature and voltage of cable joint of cable connected to gas insulated switchgear, and associated manufacturing method |
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| CN101153822A (en) * | 2007-10-16 | 2008-04-02 | 浙江红相科技有限公司 | Infrared window and its production method and its application in infrared imaging detection of electrical equipment |
| CN201417293Y (en) * | 2009-07-02 | 2010-03-03 | 湖北中科电气有限公司 | On-line temperature continuous monitoring system |
| CN202109989U (en) * | 2011-03-10 | 2012-01-11 | 国网电力科学研究院 | Anti-interference infrared temperature measuring device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538975A (en) * | 2012-01-18 | 2012-07-04 | 北京市科海龙华工业自动化仪器有限公司 | Wireless coke oven top vertical flue observation hole on-line real-time monitoring device |
| CN102538975B (en) * | 2012-01-18 | 2014-03-12 | 北京市科海龙华工业自动化仪器有限公司 | Wireless coke oven top vertical flue observation hole on-line real-time monitoring device |
| CN102980679A (en) * | 2012-11-29 | 2013-03-20 | 中国电力科学研究院 | Device and method for measuring interior temperature of GIS equipment by surface acoustic wave sensor |
| CN103162838A (en) * | 2013-04-08 | 2013-06-19 | 华北电力大学 | Method for improving infrared online temperature measuring accuracy of GIS (gas insulated switchgear) metal conductor |
| CN103471719A (en) * | 2013-06-18 | 2013-12-25 | 国家电网公司 | GIS equipment contact temperature monitoring test apparatus |
| CN103471719B (en) * | 2013-06-18 | 2016-09-21 | 国家电网公司 | A kind of GIS device contact temperature monitoring test device |
| CN103575404A (en) * | 2013-11-05 | 2014-02-12 | 国家电网公司 | Detachable internally-arranged infrared temperature measuring device for GIS |
| CN103575404B (en) * | 2013-11-05 | 2016-01-20 | 国家电网公司 | A kind of dismantled and assembled built-in infrared temperature measurement apparatus for GIS |
| CN105301395A (en) * | 2015-10-29 | 2016-02-03 | 国网福建省电力有限公司 | SF6 transformer fault early warning apparatus and application method thereof |
| CN106352988A (en) * | 2016-08-29 | 2017-01-25 | 广东电网有限责任公司电力科学研究院 | System of untouched infrared temperature measurement |
| WO2020102973A1 (en) * | 2018-11-20 | 2020-05-28 | Abb Schweiz Ag | Apparatus for monitoring temperature and voltage of cable joint of cable connected to gas insulated switchgear, and associated manufacturing method |
| CN112449677A (en) * | 2018-11-20 | 2021-03-05 | Abb瑞士股份有限公司 | Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method |
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Application publication date: 20111005 |