CN203011573U - Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device - Google Patents
Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device Download PDFInfo
- Publication number
- CN203011573U CN203011573U CN 201220641813 CN201220641813U CN203011573U CN 203011573 U CN203011573 U CN 203011573U CN 201220641813 CN201220641813 CN 201220641813 CN 201220641813 U CN201220641813 U CN 201220641813U CN 203011573 U CN203011573 U CN 203011573U
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- acoustic wave
- surface acoustic
- wave sensor
- temperature
- gis
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- 238000010897 surface acoustic wave method Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010252 digital analysis Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- 241000216843 Ursus arctos horribilis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides a device utilizing a surface acoustic wave sensor for measuring inner temperature of a GIS (Gas Insulated Switchgear) device. The device utilizing the surface acoustic wave sensor for measuring the inner temperature of the GIS device is composed of a surface acoustic wave sensor, a signal reader-writer, a wireless relay and a background monitoring system. The device utilizing the surface acoustic wave sensor for measuring the inner temperature of the GIS device is characterized in that the surface acoustic wave sensor is installed on a bus of the GIS device and is used for collecting temperature changes of heating points. The signal reader-writer and the wireless relay are used for collecting temperature signals of the surface acoustic wave sensor and transmitting the signals to the background monitoring system. The background monitoring system realizes digital analysis and processing of the temperature collected by the sensor. The device utilizing the surface acoustic wave sensor for measuring the inner temperature of the GIS device provided by the utility model can be used for monitoring internal buses and connectors for GIS devices of different voltage levels, thereby providing monitoring methods for the safe operation of the GIS devices. And the device utilizing the surface acoustic wave sensor for measuring the inner temperature of the GIS device has advantages that the device utilizing the surface acoustic wave sensor for measuring the inner temperature of the GIS device is simple in structure, easy to operate and high in precision.
Description
Technical field
The utility model relates to the device of a kind of measurement gas insulation in combined electric appliance equipment (GIS) internal bus, connector temperature; be specially a kind of surface acoustic wave sensor and measure the device of the interior bus of high pressure SF6 air seal tank body or joint temperature rise, belong to high-voltage electrical apparatus set of equipments measuring and protection technical 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 simultaneously on-line monitoring not impact the normal operation of equipment, because the heaters such as the bus of GIS equipment and joint are in high voltage, are full of in the SF6 air seal tank body of 0.4MPa left and right, need to adopt special method for measurement and device just can complete, the outer typical thermometric mode of power equipment that is used for of Present Domestic mainly contains two kinds: contactless temperature-measuring mode and contact temperature-measuring mode.The contactless temperature-measuring mode mainly contains infrared measurement of temperature, wireless temperature measurement and wireless and passive thermometric, and contact temperature-measuring mainly contains thermocouple temperature measurement and optical fiber temperature-measurement.
GIS equipment has another name called the SF6 fully 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 closed tank, be full of the SF6 gas of 0.4Mpa left and right pressure in tank body as insulating medium, its insulating property, arc extinction performance are all much better than air, switch, bus and connector are also to be placed in the SF6 gas that is full of 0.4MPa left and right pressure, and this has also caused certain difficulty to temperature of measuring bus and connector.
Current, also be in the stage of fumbling for GIS equipment bus and connector temperature survey, Chinese utility model patent " anti-interference infrared temperature measuring device " (application number: 201120062012.9 applyings date: 2011-03-10) proposed a kind of method of utilizing infrared temperature sensor to measure GIS device interior temperature, the method need to be tested GIS equipment, the factors such as different target size, SF6 gas concentration, target surface emissivity that draw are on the impact of infrared radiation, and by software correction, draw accurate temperature value.Complicated unfavorable the applying of the method.
In view of this, the device that the utility model provides a kind of surface acoustic wave sensor to measure GIS device interior temperature is to address the above problem.
Summary of the invention
The purpose of this utility model is for the described deficiency of background technology, a kind of device that utilizes SAW Temperature Sensors to measure GIS device interior temperature is 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.
The technical solution of the utility model is: a kind of surface acoustic wave sensor is measured the device of GIS device interior temperature, formed with wireless relay and background monitoring system by surface acoustic wave sensor, signal read write line, it is characterized in that, described surface acoustic wave sensor is installed on GIS equipment bus, is used for gathering the temperature variation of heat generating spot; Signal read write line and wireless relay are used for collecting the temperature signal of surface acoustic wave sensor, and are sent to background monitoring system by wired mode; Background monitoring system carries out digital assay to the temperature of sensor collection to be processed.
Surface acoustic wave sensor as above is measured the device of GIS device interior temperature, it is characterized in that, comprise that further signal wire and temperature show, described signal read write line shows with temperature by signal wire with wireless relay and is connected, target temperature is shown on liquid crystal display.
Surface acoustic wave sensor as above is measured the device of GIS device interior temperature, it is characterized in that, described signal read write line and wireless relay are installed in the GIS device housings.
The beneficial effects of the utility model are: a kind of device that utilizes SAW Temperature Sensors to measure GIS device interior temperature that the utility model provides, can be used for various electric pressure GIS equipment on-line monitoring internal bus, connector, for the GIS equipment safety operation provides monitoring means; And have advantages of that equipment is simple, easy operating, degree of accuracy be high.
Description of drawings
Fig. 1 is the principle schematic that the surface acoustic wave sensor of the utility model embodiment is measured the device of GIS device interior temperature.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within the listed claims limited range of the application.
Description of symbols in accompanying drawing: 1-GIS equipment bus, 2-surface acoustic wave sensor, 3-signal read write line and wireless relay, 4-signal wire, 5-seal flange, 6-epoxy casting, 7-glass window, the demonstration of 8-temperature, 9-GIS device housings, 10-background monitoring system.
Technical basis of the present utility model is: after by inverse piezoelectric effect, the wireless signal of inputting being transformed into acoustical signal when the on-chip transducer of surface acoustic wave sensor piezoelectric crystal, reflected to form resonance by two of left and right periodicity grizzly bar.The resonance frequency of this resonator is relevant with the temperature of substrate, and the change of resonance frequency is very linear relation with the change of temperature in certain temperature range.By piezoelectric effect, acoustical signal is transformed into the output of wireless answering signal when same transducer after, can change by survey frequency obtaining temperature value, surface acoustic wave thermometric device is pure passive device.
As shown in Figure 1, the surface acoustic wave sensor of the utility model embodiment is measured the device of GIS device interior temperature, is comprised of surface acoustic wave sensor 2, signal read write line and the wireless relay 3, signal wire 4, seal flange 5, epoxy casting 6, glass window 7, temperature demonstration 8, the background monitoring system 10 that are arranged on the GIS bus.In Fig. 1, signal read write line and wireless relay 3 send wireless signal to surface acoustic wave sensor 2, after the pumping signal that resonator in surface acoustic wave sensor 2 goes out aerial radiation receives, be converted to the frequency surface acoustic wave through inverse piezoelectric effect, surface acoustic wave is subject to the modulation of target temperature in communication process on the substrate of surface acoustic wave sensor 2, modulated surface acoustic wave is converted to electric signal through piezoelectric effect again, and this electric signal is by the aerial radiation number of letter in reply read write line and wireless relay 3.The signal read write line shows that by signal wire 4 and temperature 8 are connected with wireless relay 3, and target temperature is shown on liquid crystal display.Simultaneously, signal read write line and wireless relay 3 transfer to background monitoring system 10 by signal wire 4 with temperature signal, realize the analyzing and processing to temperature signal.
Adopt surface acoustic wave sensor of the present utility model to measure GIS device interior temperature device, carry out the thermometric method of GIS device interior and comprise the steps:
Send wireless signal by the signal read write line and the wireless relay that are installed in the GIS device housings to the surface acoustic wave sensor that is installed on GIS equipment bus;
By the frequency of surface acoustic wave sensor resonator and the linear relationship of temperature, the frequency signal that is loaded with the bus temperature signal is back to signal read write line and wireless relay by wireless transmission method;
Signal read write line and wireless relay transfer to background monitoring system by wired mode with temperature signal.
The content that is not described in detail in this instructions belongs to the known prior art of this area professional and technical personnel.
Claims (3)
1. a surface acoustic wave sensor is measured the device of GIS device interior temperature, formed with wireless relay and background monitoring system by surface acoustic wave sensor, signal read write line, it is characterized in that, described surface acoustic wave sensor is installed on GIS equipment bus, is used for gathering the temperature variation of heat generating spot; Signal read write line and wireless relay are used for collecting the temperature signal of surface acoustic wave sensor, and are sent to background monitoring system by wired mode; Background monitoring system carries out digital assay to the temperature of sensor collection to be processed.
2. surface acoustic wave sensor according to claim 1 is measured the device of GIS device interior temperature, it is characterized in that, comprise that further signal wire and temperature show, described signal read write line shows with temperature by signal wire with wireless relay and is connected, target temperature is shown on liquid crystal display.
3. surface acoustic wave sensor according to claim 1 is measured the device of GIS device interior temperature, it is characterized in that, described signal read write line and wireless relay are installed in the GIS device housings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641813 CN203011573U (en) | 2012-11-29 | 2012-11-29 | Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641813 CN203011573U (en) | 2012-11-29 | 2012-11-29 | Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011573U true CN203011573U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220641813 Expired - Fee Related CN203011573U (en) | 2012-11-29 | 2012-11-29 | Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104596668A (en) * | 2015-01-28 | 2015-05-06 | 国家电网公司 | Surface acoustic wave based distribution transformer temperature on-line monitoring system |
| CN105571743A (en) * | 2016-02-24 | 2016-05-11 | 南京科睿博电气科技有限公司 | Surface acoustic wave technology-based switch cabinet temperature measurement interference shielding apparatus |
-
2012
- 2012-11-29 CN CN 201220641813 patent/CN203011573U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104596668A (en) * | 2015-01-28 | 2015-05-06 | 国家电网公司 | Surface acoustic wave based distribution transformer temperature on-line monitoring system |
| CN104596668B (en) * | 2015-01-28 | 2017-09-15 | 国家电网公司 | A kind of distribution transformer temperature online monitoring system based on surface acoustic wave |
| CN105571743A (en) * | 2016-02-24 | 2016-05-11 | 南京科睿博电气科技有限公司 | Surface acoustic wave technology-based switch cabinet temperature measurement interference shielding apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20171129 |