CN203981209U - A kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire - Google Patents
A kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire Download PDFInfo
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- CN203981209U CN203981209U CN201420339964.4U CN201420339964U CN203981209U CN 203981209 U CN203981209 U CN 203981209U CN 201420339964 U CN201420339964 U CN 201420339964U CN 203981209 U CN203981209 U CN 203981209U
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- detection
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000001228 spectrum Methods 0.000 claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000004611 spectroscopical analysis Methods 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- -1 alkali metal salt Chemical class 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000003913 materials processing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000000341 volatile oil Substances 0.000 description 2
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Abstract
It is a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire that the utility model provides, and comprises direct current flame leakage current measurement device, spectrum test device and vegetation burning platform; Direct current flame leakage current measurement device, for measuring flame that vegetation when burning produce at the leakage current of plate electrode device; Spectrum test device, for gathering the spectroscopic data of flame.Compared with prior art, it is a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire that the utility model provides, conductivity in the time of can gathering the burning of different vegetation and the intensity of characteristic spectrum, thus important Data support provided for trip classification and the detection of dangerous vegetation of transmission line forest fire.
Description
Technical field
The utility model relates to a kind of data collector, is specifically related to a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire.
Background technology
The external insulation of overhead transmission line is to using air as insulating medium, affected by atmospheric conditions, as wind, rain, thunder and lightning, snow etc. often cause circuit external insulation to lose efficacy and trip, these faults that trip generally occur in the positions such as tower head or insulator chain, but the mountain fire that circuit below occurs can cause circuit mutually or alternate generation is discharged and trips.Under thermal extremes and arid weather condition, forest easily sends out large area mountain fire, and when mountain fire appears in circuit below, circuit phase ground or alternate gap will puncture, when particularly mountain fire is through the shared corridor of multi circuit transmission lines, likely cause many line trippings, cause large area blackout.
Main manual patrol and the satellite monitoring strengthened of existing transmission line forest fire control, but monitoring and the management of fire point are mainly laid particular stress in these measures, due to the spatial and temporal resolution restriction of manpower and device, there is monitoring blind spot simultaneously, can not effectively prevent the threat of mountain fire to transmission line of electricity security of operation.Experimental study by transmission line of electricity is found, controls vegetation and can effectively prevent and treat the tripping operation of transmission line of electricity generation mountain fire; According to different vegetation, cause the tripping characteristic of transmission line of electricity different, identification easily causes the vegetation of circuit mountain fire tripping operation, to strengthening management and the risk zoning of circuit below vegetation, has meaning.
To sum up, provide a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire, improve the accuracy of vegetation hazard detection, thereby provide according to seeming particularly important for operational management and the survey and design of transmission line of electricity.
Summary of the invention
In order to meet the needs of prior art, it is a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire that the utility model provides, and described device comprises direct current flame leakage current measurement device, spectrum test device and vegetation burning platform;
Described direct current flame leakage current measurement device, for measuring flame that vegetation when burning produce at the leakage current of plate electrode device; Described spectrum test device, for gathering the spectroscopic data of described flame.
Preferably, described device is connected with PC, and the height of the described leakage current of described PC foundation, described flame and the conductivity that diameter calculates described flame also detect vegetation in conjunction with described spectroscopic data;
Preferably, described direct current flame leakage current measurement device comprises DC voltage generator, wire mesh electrode and leakage current collection device;
Preferably, described DC voltage generator, for output negative pole DC voltage;
Preferably, the number of described wire mesh electrode is two; A described wire mesh electrode is arranged on ground connection after the plane identical with insulation column bottom, and wire mesh electrode is connected with insulation column top by hard wire described in another piece; Two described wire mesh electrode placements parallel to each other;
Preferably, described leakage current collection device comprises sample resistance and data collecting card;
Described sample resistance is connected between the described wire mesh electrode and described data collecting card of ground connection; Described capture card sends to PC by the current signal of described wire mesh electrode transmission;
Preferably, described spectrum test device comprises collimating mirror and the micro spectrometer connecting by optical fiber; Described collimating mirror arrives micro spectrometer by Optical Fiber Transmission after the spectrum of flame is assembled;
Described micro spectrometer is for testing the intensity of characteristic spectrum of described vegetation, and the intensity of described characteristic spectrum is sent to PC;
Preferably, described vegetation comprises the rectangle fuel bar of equidistant layout, arranged crosswise between every layer of rectangle fuel bar.
Compare with immediate prior art, excellent effect of the present utility model is:
1, in technical solutions of the utility model, adopt two wire mesh electrodes to form plate electrode device, can reduce the impact of electrode pair flame forms;
2,, in technical solutions of the utility model, adopt DC voltage generator output negative pole DC voltage, can be so that leakage current collection device gathers positive polarity ion;
3, in technical solutions of the utility model, be arranged as fuel buttress after the preparation materials processing wait burning is become to identical rectangle fuel bar, the layering of rectangle fuel bar arranges, guaranteed vegetation burning fully and the repeatability of test.
4, in technical solutions of the utility model, adopt infrared temperature measurement apparatus to measure the temperature of mountain fire flame, realized the non-contact measurement to mountain fire flame temperature, avoided the impact on flame;
5, in technical solutions of the utility model, adopt micro spectrometer to gather mountain fire flame characteristic spectrum, realized the non-contact detection to mountain fire flame conductivity ion.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is: a kind of transmission line forest fire based on spectral analysis dangerous vegetation structure of the detecting device figure that trips in the utility model embodiment;
Fig. 2 is: the leakage current of vegetation flame and the graph of a relation of voltage breakdown in the utility model embodiment.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
While there is mountain fire near transmission line of electricity, because the chemical reaction occurring in combustion process in vegetation and the alkali metal salt of himself can excite ionization; If the conducting flame rate of described vegetation is higher, under mountain fire condition, transmission line of electricity just more easily trips, and conducting particles can outwards send spectrum in generative process in flame, particularly alkali metal salt and carbon black etc. are maximum to the number affects of charged particle, due to the content of inorganic salts in different vegetation and the difference of combustion characteristics, frequency range and the intensity of the characteristic spectrum of different vegetation flames have a great difference, therefore by characteristic spectrum and the leakage current of vegetation flame, can realize the detection to dangerous vegetation;
When therefore data collector provided by the invention is that PC connects, can realize the trip detection of dangerous vegetation of transmission line forest fire, the leakage current that PC sends according to this data collector, spectroscopic data also calculate the conductivity of flame while not allowing vegetation burning in conjunction with height, the diameter of simulating flame, thereby dangerous vegetation is identified and detected.
As shown in Figure 1, in the present embodiment, data collector comprises direct current flame leakage current measurement device, spectrum test device and vegetation burning platform;
1.: direct current flame leakage current measurement device comprises DC voltage generator, wire mesh electrode and leakage current collection device;
A wire mesh electrode is arranged on ground connection after the plane identical with insulation column bottom, and another piece wire mesh electrode is connected with insulation column top by hard wire; Two wire mesh electrode placements parallel to each other, form plate electrode device;
DC voltage generator is connected with the wire mesh electrode on insulation column top, for output negative pole DC voltage, is convenient to leakage current collection device and gathers positive polarity ion;
Leakage current collection device comprises sample resistance and data collecting card; Sample resistance is connected between the wire mesh electrode and data collecting card of ground connection; Capture card sends to PC by the current signal of wire mesh electrode transmission, and PC is according to the height H of leakage current I, flame and the conductance δ of diameter D calculating flame;
The computing method of conductance δ are:
The conductivity of flame refers to the general effect of flame electronics and ion characteristic, has reflected flame intermediate ion concentration and mobility, and conductivity is: δ=e (μ
en
e+ μ
in
i), n wherein
eand μ
ebe respectively concentration and the mobility of electronics, n
iand μ
ibe respectively concentration and the mobility of ion;
Under electric field E effect, in flame, electronics and ion will be done directed movement and generation current, close to be between current density, J and electric field intensity: J=δ E=eE (μ
en
e+ μ
in
i);
In the present embodiment, as DC voltage generator output negative pole DC voltage U, the height H of flame is the distance between wire mesh electrode, and in the known situation of flame diameter D, the conductivity of flame is:
2.: spectrum test device comprises collimating mirror and the micro spectrometer connecting by optical fiber;
Collimating mirror arrives micro spectrometer by Optical Fiber Transmission after the spectrum of flame is assembled;
Micro spectrometer is for testing the intensity of characteristic spectrum of vegetation, and the intensity of characteristic spectrum is sent to PC; PC is classified to vegetation according to the conductivity of different vegetation and the intensity of characteristic spectrum, thereby the hazard level that occurs when vegetation is burnt to trip detects;
Due to the low alkali metal ion of the ionization potentials such as potassium, sodium in different vegetation and volatile oil content difference, the conductivity of vegetation combustion flame is also different, the characteristic spectrum of flame emission is also very different simultaneously, thereby the insulation characterisitic in gap under different conductivity is very different;
As shown in Figure 2, the breakdown characteristics test under power transmission line gap condition of eucalyptus leaves, pine needle, Chinese fir leaf and grillage, the voltage breakdown in leaf flame is along with the increase of leakage current occurs obviously to decline; The leakage current values of grillage flame is about 9.3% of pine needle flame as shown in the figure; Results of spectral measurements shows in different vegetation flame that the spectral intensity of characteristic element and the Leakage Current of flame have very large correlativity, the intensity that is characteristic spectrum is larger, show that the conducting particles generating in flame is more, the conductivity of flame is also higher, increase along with flame conductivity, the insulation characterisitic in gap obviously declines, and the voltage breakdown of pine needle flame is 41.7% of grillage flame as shown in the figure.Therefore according to the conductivity of different vegetation and the intensity of characteristic spectrum, can carry out recognition and classification near dangerous vegetation power transmission line corridor.
Wherein, volatile oil refers to the low carbon black pellet of ionization potential that vegetation generates in combustion process.
3.: in order to ensure vegetation burning fully and the repeatability of test, be arranged as fuel buttress after the preparation materials processing wait burning is become to identical rectangle fuel bar, the layering of rectangle fuel bar arranges, and comprising:
Rectangle fuel bar in every layer is equidistantly arranged, the rectangle fuel bar arranged crosswise of every interlayer.
In the present embodiment, dangerous vegetation pick-up unit is by ZVI control box access 220kV alternating current; Wherein:
DC voltage generator adopts 100kV DC voltage generator;
On insulation column, be provided with the support insulator of 110kV;
Hard diameter of wire is 2cm;
The resistance of sample resistance is 1000 Ω;
Data collecting card adopts the capture card that model is NI6210;
Micro spectrometer is marine optics HR400 fiber spectrometer;
Infrared temperature measurement apparatus adopts the safe RAYR3i1MSCU infrared temperature measurement apparatus of radium to measure temperature;
The fuel buttress that fuel buttress is 21*21*10cm.
Structure according to dangerous vegetation pick-up unit as shown in 1 connects, and after fire fuel buttress, opens DC voltage generator; When DC voltage generator slowly boosts to 40kV, utilize infrared temperature measurement apparatus to measure the temperature of flame, utilize direct current flame leakage current measurement device to gather current signal, utilize marine optics HR400 fiber spectrometer to gather the characteristic spectrum of vegetation flame; Last PC is in conjunction with electrical specification and the characteristic spectrum characteristic of vegetation flame, to easily causing the vegetation of transmission line forest fire tripping operation to detect.
Finally should be noted that: described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Claims (8)
1. for detection of the trip data collector of dangerous vegetation of transmission line forest fire, it is characterized in that, described device comprises direct current flame leakage current measurement device, spectrum test device and vegetation burning platform;
Described direct current flame leakage current measurement device, for measuring flame that vegetation when burning produce at the leakage current of plate electrode device; Described spectrum test device, for gathering the spectroscopic data of described flame.
2. as claimed in claim 1 a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire, it is characterized in that, described device is connected with PC, and the height of the described leakage current of described PC foundation, described flame and the conductivity that diameter calculates described flame also detect vegetation in conjunction with described spectroscopic data.
3. as claimed in claim 1 a kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire, it is characterized in that, described direct current flame leakage current measurement device comprises DC voltage generator, wire mesh electrode and leakage current collection device.
4. as claimed in claim 3 a kind ofly it is characterized in that for detection of the trip data collector of dangerous vegetation of transmission line forest fire, described DC voltage generator, for output negative pole DC voltage.
5. as claimed in claim 3 a kind ofly it is characterized in that for detection of the trip data collector of dangerous vegetation of transmission line forest fire, the number of described wire mesh electrode is two; A described wire mesh electrode is arranged on ground connection after the plane identical with insulation column bottom, and wire mesh electrode is connected with insulation column top by hard wire described in another piece; Two described wire mesh electrode placements parallel to each other.
6. as claimed in claim 3 a kind ofly it is characterized in that for detection of the trip data collector of dangerous vegetation of transmission line forest fire, described leakage current collection device comprises sample resistance and data collecting card;
Described sample resistance is connected between the described wire mesh electrode and described data collecting card of ground connection; Described capture card sends to PC by the current signal of described wire mesh electrode transmission.
7. as claimed in claim 1 a kind ofly it is characterized in that for detection of the trip data collector of dangerous vegetation of transmission line forest fire, described spectrum test device comprises collimating mirror and the micro spectrometer connecting by optical fiber; Described collimating mirror arrives micro spectrometer by Optical Fiber Transmission after the spectrum of flame is assembled;
Described micro spectrometer is for testing the intensity of characteristic spectrum of described vegetation, and the intensity of described characteristic spectrum is sent to PC.
8. as claimed in claim 1 a kind ofly it is characterized in that for detection of the trip data collector of dangerous vegetation of transmission line forest fire, described vegetation comprises the rectangle fuel bar of equidistant layout, arranged crosswise between every layer of rectangle fuel bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339964.4U CN203981209U (en) | 2014-06-24 | 2014-06-24 | A kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire |
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|---|---|---|---|
| CN201420339964.4U CN203981209U (en) | 2014-06-24 | 2014-06-24 | A kind of for detection of the trip data collector of dangerous vegetation of transmission line forest fire |
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| CN203981209U true CN203981209U (en) | 2014-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048926A (en) * | 2014-06-24 | 2014-09-17 | 国家电网公司 | Spectral analysis based vegetation detection device for electric transmission line forest fire tripping danger |
-
2014
- 2014-06-24 CN CN201420339964.4U patent/CN203981209U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048926A (en) * | 2014-06-24 | 2014-09-17 | 国家电网公司 | Spectral analysis based vegetation detection device for electric transmission line forest fire tripping danger |
| CN104048926B (en) * | 2014-06-24 | 2016-05-25 | 国家电网公司 | A kind of transmission line forest fire based on spectrum analysis dangerous vegetation checkout gear that trips |
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