CN102207417A - Leakage detection device for gas insulated transmission line - Google Patents
Leakage detection device for gas insulated transmission line Download PDFInfo
- Publication number
- CN102207417A CN102207417A CN201110074239XA CN201110074239A CN102207417A CN 102207417 A CN102207417 A CN 102207417A CN 201110074239X A CN201110074239X A CN 201110074239XA CN 201110074239 A CN201110074239 A CN 201110074239A CN 102207417 A CN102207417 A CN 102207417A
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- China
- Prior art keywords
- gas
- leakage
- outer container
- electric power
- insulating
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- 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.)
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Abstract
The invention provides a leakage detection device for a gas insulated transmission line in a cylindrical outer container which is spaced from a cylindrical conductor retained via a supporting insulator. Insulation gas is filled in insulation spaces divided by partitions, and a particle trap is arranged in the line. The leakage detection device comprises a pressure gauge arranged on the container for detecting insulated gas pressure in the transmission line, an insulated gas temperature sensor arranged in the container for detecting the temperature of the insulated gas, a controller reflecting the detection signal of the insulated gas temperature sensor on the pressure detected by the pressure gauge and determining leakage based on actual reduction of gas, and an alarm generator notifying gas leakage when controlled by the controller.
Description
Technical field
The present invention relates to gas insulation electric power line, the actual temperature that is particularly related to the insulating gas of reflection power transmission line inside is come the compensatory pressure measured value, can be rapidly and measure the gas leakage determinator (Gas Leakage Measurement Apparatus in the Gas Insulated Transmission Line) of the gas insulation electric power line that gas leaks exactly.
Background technology
As by United States Patent (USP) No. 4743709, No. 4721829, No. 4554399 etc. and known, gas insulation electric power line (GIL:Gas Insulated Line, perhaps CGIT:Compressed Gas Insulated Transmission BusSystem) be at the columnar conductor of the internal fixation of the columnar outer container that constitutes by aluminium alloy, in the space between above-mentioned conductor and outer container, fill by sulfur hexafluoride (SF
6) and/or the insulating gas that constitutes of nitrogen mixed gass such as (N) and the transmission line of electricity of the form that insulate.
Such gas insulation electric power line is suitable for jumbo underground line, in case be provided with then as long as once every visual examination in several years, having the advantage that spends maintenance cost hardly, also is the power transmission line form that adapts to the undergroundization demand in the urban district be difficult to be provided with overhead transmission line.
The schematic structure of aforesaid gas insulation electric power line has been shown among Fig. 1.As shown in Figure 1, gas insulation electric power line 2 constitutes following structure, promptly in the columnar outer container 10 that constitutes by aluminium alloy, the configuration diameter is than the columnar conductor 20 of its little aluminum alloy materials, above-mentioned conductor 20 is by fixed supporting insulator 30 and mobile model supporting insulator 35 and supported, thereby keep with outer container 10 between the interval, be spaced apart in the insulating space of thing 40 divisions and filled insulating gas 50.And, on part such as above-mentioned supporting insulator 30,35 and sept 40, they with above-mentioned outer container 10 between form and hang down electric field region, and particle trapper 60 is set.Particle trapper 60 plays by preventing swimming of dust, metallic dust etc., and prevents the effect of the problem of insulation breakdown that particulate causes etc.
As mentioned above, in the form that realizes insulating at the inside of gas insulation electric power line 2 filling insulating gas, can destroy insulation if insulating gas spills, therefore pressure transducer 70 is set in the centre of power transmission line 2 detect the decline of power transmission line 2 pressure inside.
Usually, pressure transducer 70 is temperature compensating type pressure transducers, and constitutes following structure, promptly is set with Alert Level, under pressure drops to situation below the set pressure, is judged as gas and leaks and this situation is notified.
That is, be provided with the temperature compensation structure, reflect because temperature variation makes the situation that pressure changes in pressure transducer 70 inside.
But, because above-mentioned temperature compensating type pressure transducer 70 is arranged on power transmission line 2 outsides, thereby just compensate atmospheric temperature, can not compensate power transmission line 2 temperature inside, therefore after gas is filled, when the practice transmission line of electricity, can not reflect power transmission line gas inside temperature, there is the shortcoming be difficult to judge whether gas in fact spills.
That is, make under the conductor 20 alive situations, and the generation Joule heat (Joule ' s heat) and the temperature of conductor 20 is risen.And the temperature of conductor 20 changes according to the increase and decrease of load.By the temperature variation of such conductor 20, the temperature variation of the insulating gas of power transmission line inside, the volume of insulating gas changes according to temperature variation, thus the pressure of insulating gas also changes.
But pressure transducer in the past can not reflect the pressure variety that the insulating gas variation of temperature of power transmission line inside causes, is difficult to accurately and the gas leakage of notice reality promptly.
Summary of the invention
The objective of the invention is to, a kind of gas leakage determinator of gas insulation electric power line is provided, its actual temperature by the insulating gas of reflection power transmission line inside is come the compensatory pressure measured value, can measure, notify the gas of power transmission line to leak thus rapidly and exactly.
In order to realize above-mentioned purpose, the invention provides a kind of gas leakage determinator of gas insulation electric power line, in this gas insulation electric power line, cylindrical conductor is to keep the form configuration at the interval between this cylindrical conductor and the outer container by supporting insulator, in the insulating space that is divided into by sept, be filled with insulating gas, centre at circuit is provided with particle trapper, the gas leakage determinator of described gas insulation electric power line comprises: pressure gauge, it is arranged on the described outer container, detects the insulating gas pressure of power transmission line inside; The insulating gas temperature sensor, it is arranged on the inside of described outer container, detects the insulating gas temperature; Controller, it is reflected to the detection signal of described insulating gas temperature sensor by on the detected pressure of described pressure gauge, by judging whether actual the minimizing judges that gas has or not leakage to gas; And alarm generator, it is under the control of described controller, and notice gas has or not leakage.
In addition, above-mentioned insulating gas temperature sensor can be arranged between above-mentioned particle trapper and the outer container, the gas between above-mentioned pressure gauge and the outer container imports on path or the besel.
According to the present invention, come the compensatory pressure measured value by the actual temperature that detects the insulating gas of power transmission line inside with the insulating gas temperature sensor, even thus in the temperature variation of the insulating gas of power transmission line inside causes environment that the pressure of insulating gas changes, also can detect the amount of actual insulating gas, having or not of gas leakage can be measured, notify rapidly and exactly, the high and good gas insulation electric power line of reliability can be realized thus.
Description of drawings
Fig. 1 is the constructed profile of gas insulation electric power line that the state that is provided with of pressure transducer in the past is shown.
Fig. 2 is the constructed profile of gas insulation electric power line with insulating gas temperature sensor of one embodiment of the present of invention.
Fig. 3 is a process flow diagram of representing to measure according to one embodiment of present invention the gas leaking process.
Label declaration:
10: outer container 20: conductor
30: supporting insulator 40: sept
50: insulating gas 60: particle trapper
71: pressure gauge 100: the insulating gas temperature sensor
Embodiment
Below, with reference to accompanying drawing the preferred embodiments of the present invention are described in further detail.
In Fig. 2, schematically show the gas leakage determinator of the gas insulation electric power line of one embodiment of the present of invention.
As shown in Figure 2, about gas insulation electric power line, in columnar outer container 10, columnar conductor 20 is with the state configuration by the interval between supporting insulator 30 maintenances and the outer container 10.Be filled with insulating gas in the insulating space, the centre of circuit is provided with particle trapper 60.
According to present embodiment, above-mentioned outer container 10 is provided with the pressure gauge 71 of the insulating gas pressure that detects power transmission line inside, is provided with the insulating gas temperature sensor 100 that detects the insulating gas temperature in the inside of above-mentioned outer container 10.
And, though it is not shown, but the gas leakage determinator of above-mentioned gas insulation power transmission line also has: controller, it will be by the actual temperature of above-mentioned insulating gas temperature sensor 100 detected insulating gass, be reflected to by on the above-mentioned pressure gauge 71 detected force value, judge that in fact whether gas reduce and judge having or not that gas leaks; And alarm generator, it is under the control of above-mentioned controller, and what notice gas leaked has or not.
Above-mentioned alarm generator can be the monitor of the operation system of gas insulation electric power line, is to show alarm on monitor under this situation.And above-mentioned alarm generator also can be arranged on the scene, and promptly the outer container of gas insulation electric power line carries out the warning light of light on and off or the alarm tone generator of generation alarm tone under the control of controller.
Herein, as shown in Figure 2, above-mentioned insulating gas temperature sensor 100 can be arranged between particle trapper 60 and the outer container 10, the gas between above-mentioned pressure gauge 71 and the outer container 10 imports on the path or on the besel 12.
Fig. 3 is the gas leaking process is measured in expression by one embodiment of the present of invention a process flow diagram.
As shown in Figure 3, according to present embodiment, calculate the temperature (S201) of built-in electrical insulation gas according to the detection signal that applies by insulating gas temperature sensor 100, according to after the pressure of the detection signal calculating built-in electrical insulation gas that is applied by pressure gauge 71 (S203), accounting temperature changes the calibrating (base measuring) pressure (S204) that causes.Then, judge that the pressure of being proofreaied and correct by temperature compensation whether than datum pressure low (S205), produces alarm (S206) under the calibrating (base measuring) pressure situation lower than datum pressure.
At this moment, in the step before above-mentioned steps S204, can also calculate outside temperature by outer temperature degree sensor 101 that on pressure gauge 71, is provided with or the outer temperature degree sensor that is provided with in other places in addition, and it is reflected on the piezometry value of pressure gauge 71 (S202).
According to present embodiment, compensate measured value by the actual temperature that detects the insulating gas of power transmission line inside with the insulating gas temperature sensor, even cause under the environment that the pressure of insulating gas changes in the temperature variation of the insulating gas of power transmission line inside thus, also can be rapidly and measure having or not that actual gas leaks exactly.
Therefore, under the situation of using gas leakage determinator of the present invention, realize the high and good gas insulation electric power line of reliability.
More than, though describe expression specific embodiments of the invention in the accompanying drawings in detail, this only is that example illustrates optimal way of the present invention, protection scope of the present invention is not limited thereto.And, technician with common knowledge of this area, can be in technological thought of the present invention, other enforcements that aforesaid embodiments of the invention are carried out various deformation and are equal to, such distortion and other embodiment that are equal to also belong in the scope of claim of the present invention certainly.
Claims (4)
1. the gas leakage determinator of a gas insulation electric power line, this gas insulation electric power line is in columnar outer container, cylindrical conductor is to keep the form configuration at the interval between this cylindrical conductor and the outer container by supporting insulator, in the insulating space that is divided into by sept, be filled with insulating gas, centre at circuit is provided with particle trapper, it is characterized in that
The gas leakage determinator of described gas insulation electric power line comprises:
Pressure gauge, it is arranged on the described outer container, detects the insulating gas pressure of power transmission line inside;
The insulating gas temperature sensor, it is arranged on the inside of described outer container, detects the insulating gas temperature;
Controller, its detection signal with described insulating gas temperature sensor are reflected to by on the detected pressure of described pressure gauge, by judging whether actual the minimizing judges that gas has or not leakage to gas; And
Alarm generator, it is under the control of described controller, and notice gas has or not leakage.
2. the gas leakage determinator of gas insulation electric power line according to claim 1 is characterized in that,
Described insulating gas temperature sensor is arranged between described particle trapper and the outer container.
3. the gas leakage determinator of gas insulation electric power line according to claim 1 is characterized in that,
The gas that described insulating gas temperature sensor is arranged between described pressure gauge and the outer container imports on the path.
4. the gas leakage determinator of gas insulation electric power line according to claim 1 is characterized in that,
Described insulating gas temperature sensor is arranged on the besel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0027799 | 2010-03-29 | ||
| KR1020100027799A KR20110108550A (en) | 2010-03-29 | 2010-03-29 | Gas leakage measurement apparatus in the gas insulated transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207417A true CN102207417A (en) | 2011-10-05 |
Family
ID=44898238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110074239XA Pending CN102207417A (en) | 2010-03-29 | 2011-03-25 | Leakage detection device for gas insulated transmission line |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20110108550A (en) |
| CN (1) | CN102207417A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535277A (en) * | 2014-11-25 | 2015-04-22 | 国家电网公司 | Pressure monitoring method and system for SF6 gas |
| CN104707835A (en) * | 2015-01-26 | 2015-06-17 | 山东泰开高压开关有限公司 | 800 kV enclosed-type assembled switch gear busbar device metal particle trapping and eliminating device |
| CN105337231A (en) * | 2014-08-15 | 2016-02-17 | 中国广核集团有限公司 | Detection and optimization method for power generation and distribution system of nuclear power station |
| CN106953241A (en) * | 2017-04-22 | 2017-07-14 | 上海华东电器集团电气有限公司 | Gas-insulated transmission line |
| CN107132007A (en) * | 2017-06-09 | 2017-09-05 | 上海飞奥燃气设备有限公司 | A kind of gas pressure regulating station air tightness detection apparatus and its detection method |
| CN107546691A (en) * | 2017-10-11 | 2018-01-05 | 江苏士林电气设备有限公司 | A kind of detecting system of intelligent DC tube type bus |
| CN108871699A (en) * | 2017-04-19 | 2018-11-23 | 通用电气公司 | Fluid supplies leak detection system and method |
| CN110702338A (en) * | 2019-10-12 | 2020-01-17 | 上海交通大学 | Method for testing defects of low-voltage cable insulating material |
| CN111272348A (en) * | 2019-11-08 | 2020-06-12 | 中国电力科学研究院有限公司 | Test device and method for GIL hard buckle cover helium mass spectrum vacuum dynamic leak detection |
| CN111458081A (en) * | 2019-01-22 | 2020-07-28 | 西安高压电器研究院有限责任公司 | Dynamic helium mass spectrum leak detection airtightness test method and device for GI L bus |
| CN113748578A (en) * | 2019-03-28 | 2021-12-03 | 西门子能源全球有限公司 | Monitoring method for volatile fluid enclosed in container and electric energy transmission device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885151A (en) * | 2017-12-20 | 2018-04-06 | 江苏精微特电子股份有限公司 | A kind of Multifunction Sensor good with antistatic insulating effect |
| WO2021014490A1 (en) * | 2019-07-19 | 2021-01-28 | 株式会社 東芝 | Gas leakage detection system and gas leakage detection method |
Citations (5)
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|---|---|---|---|---|
| US4554399A (en) * | 1984-04-26 | 1985-11-19 | The United States Of America As Represented By The United States Department Of Energy | Particle trap for compressed gas insulated transmission systems |
| US4721829A (en) * | 1986-12-08 | 1988-01-26 | Westinghouse Electric Corp. | Gas insulated transmission line with shielded electrical joint assembly |
| US4743709A (en) * | 1987-10-30 | 1988-05-10 | Westinghouse Electric Corp. | Gas insulated transmission line with support insulator hardware arrangements |
| CN2383057Y (en) * | 1999-06-01 | 2000-06-14 | 王杵 | Air keeping monitoring and warning device for inflated cable |
| CN101046425A (en) * | 2007-04-28 | 2007-10-03 | 苏州工业园区新大诚科技发展有限公司 | Real-time multichannel gas flow monitoring method for gas-filled cable |
-
2010
- 2010-03-29 KR KR1020100027799A patent/KR20110108550A/en unknown
-
2011
- 2011-03-25 CN CN201110074239XA patent/CN102207417A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554399A (en) * | 1984-04-26 | 1985-11-19 | The United States Of America As Represented By The United States Department Of Energy | Particle trap for compressed gas insulated transmission systems |
| US4721829A (en) * | 1986-12-08 | 1988-01-26 | Westinghouse Electric Corp. | Gas insulated transmission line with shielded electrical joint assembly |
| US4743709A (en) * | 1987-10-30 | 1988-05-10 | Westinghouse Electric Corp. | Gas insulated transmission line with support insulator hardware arrangements |
| CN2383057Y (en) * | 1999-06-01 | 2000-06-14 | 王杵 | Air keeping monitoring and warning device for inflated cable |
| CN101046425A (en) * | 2007-04-28 | 2007-10-03 | 苏州工业园区新大诚科技发展有限公司 | Real-time multichannel gas flow monitoring method for gas-filled cable |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337231A (en) * | 2014-08-15 | 2016-02-17 | 中国广核集团有限公司 | Detection and optimization method for power generation and distribution system of nuclear power station |
| CN105337231B (en) * | 2014-08-15 | 2017-12-12 | 中国广核集团有限公司 | Nuclear power station is transported to electric system detection and optimization method |
| CN104535277A (en) * | 2014-11-25 | 2015-04-22 | 国家电网公司 | Pressure monitoring method and system for SF6 gas |
| CN104707835A (en) * | 2015-01-26 | 2015-06-17 | 山东泰开高压开关有限公司 | 800 kV enclosed-type assembled switch gear busbar device metal particle trapping and eliminating device |
| US11280213B2 (en) | 2017-04-19 | 2022-03-22 | General Electric Company | Fluid supply line leakage detection system and method |
| CN108871699A (en) * | 2017-04-19 | 2018-11-23 | 通用电气公司 | Fluid supplies leak detection system and method |
| CN106953241B (en) * | 2017-04-22 | 2018-11-30 | 上海华东电器集团电气有限公司 | gas-insulated transmission line |
| CN106953241A (en) * | 2017-04-22 | 2017-07-14 | 上海华东电器集团电气有限公司 | Gas-insulated transmission line |
| CN107132007A (en) * | 2017-06-09 | 2017-09-05 | 上海飞奥燃气设备有限公司 | A kind of gas pressure regulating station air tightness detection apparatus and its detection method |
| CN107546691B (en) * | 2017-10-11 | 2019-08-23 | 江苏士林电气设备有限公司 | A kind of detection system of intelligent DC tube type bus |
| CN107546691A (en) * | 2017-10-11 | 2018-01-05 | 江苏士林电气设备有限公司 | A kind of detecting system of intelligent DC tube type bus |
| CN111458081A (en) * | 2019-01-22 | 2020-07-28 | 西安高压电器研究院有限责任公司 | Dynamic helium mass spectrum leak detection airtightness test method and device for GI L bus |
| CN113748578A (en) * | 2019-03-28 | 2021-12-03 | 西门子能源全球有限公司 | Monitoring method for volatile fluid enclosed in container and electric energy transmission device |
| CN110702338A (en) * | 2019-10-12 | 2020-01-17 | 上海交通大学 | Method for testing defects of low-voltage cable insulating material |
| CN111272348A (en) * | 2019-11-08 | 2020-06-12 | 中国电力科学研究院有限公司 | Test device and method for GIL hard buckle cover helium mass spectrum vacuum dynamic leak detection |
| CN111272348B (en) * | 2019-11-08 | 2023-05-09 | 中国电力科学研究院有限公司 | GIL hard buckle cover helium mass spectrum vacuum dynamic leak detection test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110108550A (en) | 2011-10-06 |
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Application publication date: 20111005 |