CN101614783B - Gap discharging test device for manually simulating strong wind and sand storm and test method - Google Patents
Gap discharging test device for manually simulating strong wind and sand storm and test method Download PDFInfo
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Abstract
The invention discloses a gap discharging test device for manually simulating strong wind and sand storm and a test method, wherein the test device comprises a flow field subsystem, an electric field subsystem and a measuring subsystem. In the test process, a sand sample is firstly placed in a sand sender; then the power frequency puncture voltage of the gap between electrodes is measured under the environment of clean air, next, a gap puncture discharging test is performed under the condition with different wind speeds and sand concentrations; a pressurizing method adopts a gradually pressurizing method, and a group of puncture voltages and concentration values are recorded after the puncturing happens; the pressurizing is repeated, each group of tests are repeated again and again to reduce the measuring error, and meanwhile, the sand flow temperature is recorded to be used as a reference. The invention can be used for performing the power frequency puncture of a gap on a transmission line under the environment of strong wind and sand storm and researching the discharging rule, has low cost, simple installation, good stability in the test process, easy operation, and the like.
Description
Technical field
The present invention relates to a kind of bubble-discharge test unit and test method, particularly a kind ofly be used to study bubble-discharge test unit and the test method of transmission line of electricity under adverse weather condition.
Background technology
In recent years, the frequent sandstorm that takes place has caused worker, agricultural production and the people's lives in northern China and even wider area to have a strong impact on, and is particularly outstanding for the harm of high-voltage fence line insulator.As on June 10th, 2006, the large tracts of land flashover fault has taken place in electrical network under Baya ur, NeiMengGu city and the Huhehaote City under strong sand and dust weather, cause 5 220kV circuits and 2 110kV line trippings altogether 15 times, this previous day, similar electric network fault has also taken place in the Xinjiang electrical network.According to another statistics, over nearly 10 years, only Lanzhou power supply administration and silver power supply administration have jurisdiction over the 330kV circuit and earth fault occurs and cause the power grid accident number of times to reach more than 20 time, and on-the-spot weather is rugged surroundings such as big humidity or sandstorm substantially during incident.For adapting to needs of economic development, the northern China regional power grid is on the occasion of develop rapidly period, with Xinjiang is example, many 750kV UHV (ultra-high voltage) loops are about to put into operation in the near future, and (complete before this boundary only has 110kV, 220kV transmission of electricity grade, transit directly to the 750kV grade by 220kV), whole Northwest Grid is about to build up the main electrical network framework of 750kV UHV (ultra-high voltage) grade.And northern area is arid short of rain because the vegetation covering is less, is sandstorm Yi Fa district, so, how to improve the ability that high-voltage fence is resisted extreme climate environments such as high wind and sandstorm, be to press for the research topic that draws attention.
The applicant is once at the on-the-spot ruuning situation of ultra-high-tension power transmission line under high wind and sand and dust (cruelly) environment, carried out careful investigation in Xinjiang region, the result is as follows: the flashover tripping operation accident that transmission line of electricity causes because of external insulation, roughly can be divided into two big classes, one class is the pollution flashover accident of line insulator, accounts for 35% of overall flashover fault; One class is the unidentified flashover accident under high wind and the sand and dust environment, accounts for 50%.15% flashover fault that causes for ice, snow, mist or other reasons of also having an appointment.Therefore can think that for the transmission line of electricity external insulation high wind and sand and dust (cruelly) are exceedingly odious climatic environments, cause flashover tripping operation accident easily.
For external insulation, the influence of sandstorm is mainly reflected in serious contamination and surrounding medium environment change two broad aspect.With the line insulator string is example, and on the one hand, sandstorm airborne sand of when outbreak, dirt, the salt solia particle content that grades can increase greatly, causes insulator chain surface contamination amount to increase severely easily, for pollution flashover stays hidden danger; On the other hand, can form high component concentration, high flow rate around the insulator chain,, make the working environment of insulator chain and media environment that serious distortion take place than polyphasic flow (air-many granular solids) fluid of long duration.Result of study shows: surrounding medium characteristic and distribution are obvious to the Electric Field Distribution influence of insulator chain, can aggravate corona discharge, or the starting arc discharge; The mixed fluid of air-sand and dust is compared with air dielectric, has higher conductivity and bigger specific inductive capacity, makes gap discharge voltage reduce; Mixed fluid can cause the gathering of charged particle under long-time high-speed motion friction, produce space electric field.Can infer that in view of the above the original Electric Field Distribution in insulator near field region can distort under the sandstorm environment, the discharge process can be exacerbated, and the insulation risk also will be much higher than home.
But so far, also do not have specially to go reference at standard power supply power device fabrication department, relevant design department and the operation department of sand and dust (cruelly) environment.For power equipment external insulation field, this is indicating, can continue to be suitable for high wind and sand and dust (cruelly) environment with reference to the designed insulation system of conventional factor, can withstand high wind and sand and dust (cruelly) environment test, guarantee the reliability service of electrical network, how could make external insulation structure have a series of problems such as more performance under this environment does not have definite answer so far.So be necessary to study the influence of high wind and sand and dust (cruelly) environment to high-tension line external insulation characteristic.The transmission line of electricity external insulation test unit of setting up thus under manual simulation's rugged surroundings is particularly important.
Summary of the invention
The bubble-discharge test unit and the test method that the purpose of this invention is to provide a kind of manual simulation's high wind and sandstorm condition, be used to carry out the power frequency puncture and the discharging law research of transmission line of electricity air gap under high wind and sand and dust (cruelly) environment, can on the basis of basic weather conditions such as controlled wind speed, sand and dust concentration, sand and dust attribute, carry out the test of power frequency bubble-discharge.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
The bubble-discharge test unit of a kind of manual simulation's high wind and sandstorm is characterized in that, comprises flow field subsystem, electric field subsystem, measurement subsystem; Described flow field subsystem comprises the main air duct at centrifugal blower, experimental cabin and experimental cabin air inlet and air outlet two ends, constitute an airtight circulation flow field by main air duct between experimental cabin and the centrifugal blower, wherein the main air duct of experimental cabin air inlet is provided with and send husky device; Described centrifugal blower and send the drive motor of husky device to be electrically connected with a controller is in order to the control of sand and dust concentration in the control of realization wind speed and the fluid;
The electric field subsystem comprises that the high pressure that is arranged on the experimental cabin two side is introduced terminal and ground connection is introduced terminal, high pressure is introduced terminal and is connected the interior low-field electrode of experimental cabin by the high-field electrode in the electrode separation regulating device connection experimental cabin, ground connection introducing terminal by the electrode separation regulating device, forms air gap between high-field electrode and the low-field electrode;
Measurement subsystem comprises the wind speed measuring device that is arranged on experimental cabin air inlet and air outlet centre position, be arranged on the experimental cabin upper side and extend to the interior sand and dust concentration real-time measurement apparatus of experimental cabin, and be arranged on the flow field temperature measuring equipment of experimental cabin into and out of the centre position, air port over against high and low pressure electrode centers position;
The wind speed that wind speed measuring device is gathered, sand and dust concentration real-time measurement apparatus are gathered the temperature three drive test amount signals of sand and dust concentration, the collection of flow field temperature measuring equipment, deliver to industrial control computer and store, handle and show.
In the said apparatus, described experimental cabin is provided with the flow field expanding section into and out of between two ends, air port and the main air duct.
Described electrode separation regulating device comprises the metal guide rail that is fixed in the experimental cabin side wall surface, and this metal guide rail and high-field electrode or low-field electrode are slidingly connected, and metal guide rail is provided with distance scale.
Described wind speed measuring device is two pitot tubes, is vertically set on experimental cabin air inlet and air outlet centre position respectively.
Described sand and dust concentration real-time measurement apparatus is a laser particle substrate concentration measuring instrument.
Described flow field temperature measuring equipment is two thermopairs, is separately positioned on experimental cabin air inlet and air outlet centre position.
A kind of test method of the bubble-discharge test unit based on above manual simulation's high wind and sandstorm is characterized in that:
At first clean the high and low pressure electrode surface, installing electrodes is also adjusted anode-cathode distance, the sand and dust sample is put into sent husky device; At the frequency breakdown voltage of measuring air gap between the electrode under the pure air environment, then under different wind speed and sand and dust concentration environment, carry out gap breakdown dispensing electric test then.Pressuring method adopts gradually platen press, and the discreet value of obtaining voltage breakdown by the bubble-discharge test earlier is after the formal measurement beginning, the first step is pressurized to 60% of discreet value, each afterwards pressurization is no more than 2%, and interval time is not less than 5 seconds, takes place up to the gap breakdown discharge.After puncturing generation, write down one group of voltage breakdown and concentration value.Repeat pressurization, every group of test repeats repeatedly, to reduce measuring error.Write down the sand and dust fluid temperature (F.T.) simultaneously as a reference.
In the said method, described wind speed range is 7-15m/s, and corresponding is medium sandstorm and following grade weather.Described sand and dust sample is formulated with pulvis NaCl less than dry zeyssatite and the chemical analysis of 50um less than grinding fine sand, the granularity of 100um by granularity.Quality such as fine sand and zeyssatite wherein, salinity NaCl content is determined by trial and error.Trial-and-error procedure is as follows: husky sample is dissolved in deionized water, measures its conductivity, and with this zone sandstorm after the insulator surface contamination become branch to join electrical conductivity of solution to compare, change salt content, identical up to two kinds of electrical conductivity of solution, determine salt content.The mass ratio of husky part of finally determining, soil part and salt is 6: 6: 1.
The bubble-discharge test of manual simulation's high wind and sandstorm is carried out in utilization with apparatus of the present invention and method, test findings is accurate, can be effective to ultra-high-tension power transmission line bubble-discharge characteristic research under the weather extremes, have cheap, install simple, the process of the test good stability, advantages such as easy operating.
Description of drawings
The structural representation of Fig. 1 test unit of the present invention.
Among the figure: 1, experimental cabin; 2, expanding section; 3, main air duct; 4, centrifugal blower; 5, send husky device; 6, thermopair; 7, pitot tube; 8, laser particle substrate concentration measuring instrument; 9, electrode; 10, guide rail; 11, high-pressure side; 12, earth terminal.
Fig. 2 is a vertical direction electrode centers section internal pressure cloud charts among Fig. 1.
Fig. 3 is a vertical direction electrode centers section inner volume mark cloud atlas among Fig. 1.
Fig. 4 is the relation that adopts resulting voltage breakdown of test method of the present invention and air gap distance.Wherein Fig. 4 (a) is that wind speed is the relation curve of voltage breakdown and air gap distance under the 7m/s condition; Fig. 4 (b) is the relation curve of voltage breakdown and air gap distance under the wind speed 13m/s condition.
Fig. 5 is the relation that adopts resulting voltage breakdown of test method of the present invention and sand and dust concentration.Wherein Fig. 5 (a) is the relation curve of voltage breakdown and sand and dust concentration under the wind speed 7m/s condition; The relation curve of voltage breakdown and sand and dust concentration under Fig. 5 (b) wind speed 13m/s condition.
Fig. 6 adopts resulting voltage breakdown of test method of the present invention and respective relationships.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1.Apparatus of the present invention can be divided into flow field subsystem, electric field subsystem, measurement subsystem.
The flow field subsystem comprises centrifugal blower 4, send husky device 5, main air duct, flow field expanding section 2 and experimental cabin 1, and space, whole flow field is airtight, has avoided in the process of the test sand and dust particle to leak outside and has caused atmospheric pollution.Flow field expanding section 2 can the warranty test process in air, sand and dust two-phase flow fully expand, constant at experimental cabin 1 air inlet and air outlet fluid field pressure, the sand and dust particle content is even substantially.Centrifugal blower 4 and send the drive motor of husky device 5 to be electrically connected with a controller, in order to realizing centrifugal blower and to send the speed governing of husky device drive motor, and then the control of sand and dust concentration in the control of realization wind speed and the fluid.
Measurement subsystem comprises wind speed measuring device, sand and dust concentration real-time measurement apparatus and flow field temperature measuring equipment.Wind speed is converted into the standard electric signal by pitot tube 7 (experimental cabin air inlet and air outlet centre position respectively are arranged vertically four measuring points) and signal conditioning circuit, and exports to signals collecting terminal (computing machine); Measurement of concetration is finished by laser particle substrate concentration measuring instrument 8, and this instrument to radiative scattering situation, converts particle concentration to standard signal according to particulate in air; The flow field temperature measuring equipment is formed the measurement loop by thermopair 6 and is born, respectively arranging a thermopair into and out of the centre position, air port, the main cause of measuring temperature is because the specific inductive capacity of sand and dust particle is extremely important for Electric Field Distribution and gap breakdown, and the specific inductive capacity temperature influence is obvious, and particle is owing to temperature rise appears in friction, impact effect meeting in process of the test.Wind speed, concentration, temperature three drive test amount signals are gathered in real time, are stored and show by industrial control computer.
With lower plate-plate electrode is example, describes the test method of utilizing Fig. 1 device in detail:
(1) sand and dust specimen preparation
According to stage division, dust and sand weather can be divided into floating dust, sand, sandstorm, strong sandstorm and extra-heavy sandstorm five big classes.For floating dust and dust and sand weather, corresponding wind-force is less, and generally below 4 grades (5.5-7.9m/s), this moment, face of land sand and dust were difficult to jump up, and sand and dust content is less in the air.The wind scale of sandstorm weather correspondence is generally more than 4 grades, the highlyest can reach 12 grades.Consider the engineering significance of experimental result, the experimental establishment wind speed range is 7-15m/s, corresponding is medium sandstorm and following grade weather, because the sandstorm weather occurrence probability more than the whole gale is very little, and the destruction of electrical network has been not limited to the external insulation aspect, may account for leading with mechanical failure.
Relevant climate monitoring result with reference to Turfan Prefecture, when high wind and sandstorm outbreak, although the particle of millimeter level diameter also can be blown afloat, it is trapped in closely top layer substantially, has only particle diameter to be in the height that the following particle of 100um might arrive high-tension overhead line.Consider that Turfan Prefecture surface sand part and soil part quality are roughly the same, choose granularity in the test and prepare the sand and dust sample less than dry zeyssatite and the chemical analysis of 50um with pulvis NaCl less than grinding fine sand, the granularity of 100um.Quality such as fine sand and zeyssatite wherein, salt content is determined by trial and error.Trial-and-error procedure is as follows: husky sample is dissolved in deionized water, measures its conductivity, and with this zone sandstorm after the insulator surface contamination become branch to join electrical conductivity of solution to compare, change salt content, identical up to two kinds of electrical conductivity of solution, determine salt content.The mass ratio of husky part of finally determining, soil part and salt is 6: 6: 1.Wherein fine sand mainly embodies is rigid particles composition in the transition feature difference of sand and dust under the different wind speed and the dust; What zeyssatite embodied is dust and the non-rigid particulate component that suspends easily in the sand and dust; NaCl is mainly used to simulate the small amounts of inorganic salt component in the sand and dust.
(3) test method
With distilled water and alcohol cleaning electrode 9 surfaces, installing electrodes is also adjusted anode-cathode distance, husky sample is put into sent husky device 5.At first under the pure air environment, measure the air gap frequency breakdown voltage,, carry out gap breakdown dispensing electric test then under different wind speed and sand and dust concentration environment.Pressuring method adopts gradually platen press, and the discreet value of obtaining voltage breakdown by the bubble-discharge test earlier is after the formal measurement beginning, the first step is pressurized to 60% of discreet value, each afterwards pressurization is no more than 2%, and interval time is not less than 5 seconds, takes place up to the gap breakdown discharge.After puncturing generation, write down one group of voltage breakdown and concentration value.Repeat pressurization, every group of test repeats repeatedly, to reduce measuring error.Write down the sand and dust fluid temperature (F.T.) simultaneously as a reference.
The Flow Field Distribution characteristic
For the validity of demonstration test device expanding section, carried out the simulation calculation in flow field.Utilize Euler's model and Discrete Phase Model to calculate the Two-Phase Flow Field feature of electrode space.Fig. 2 is the pressure distribution cloud atlas in the vertical direction electrode centers section.As shown in Figure 2, because the inhibition in electrode pair flow field, the flow field negative pressure characteristic occurred at the electrode near zone, and just absolute pressure is slightly less than standard atmospheric pressure.Wherein near the pressure less (about 9.96 * 10 at electrode edge place
4Pa), center pressure big (about 9.99 * 10
4Pa).Consider interpolar areal pressure difference less than 1 ‰, the flash-over characteristic difference due to the pressure gap is minimum again, therefore can think that pressure distribution is uniform between electrode when considering flash-over characteristic.Fig. 3 is the volume ratio cloud atlas of this zone dust and air.As shown in Figure 3, near close pole-face, because the turbulent flow influence, dust content is lower; At two electrode zone lines, dust concentration is higher.But in general, dust concentration basically identical in the interpolar zone, electrode edge place and center CONCENTRATION DISTRIBUTION do not have significant difference.
The relation of voltage breakdown and anode-cathode distance
Under maintenance sand and dust concentration and wind speed one stable condition, only change anode-cathode distance and carried out flash test.Fig. 4 (a), Fig. 4 (b) are respectively the graph of a relation of voltage breakdown and air-gap separation under 7m/s and the 13m/s wind friction velocity.For with the pure air media environment under the result compare, provided the voltage breakdown measurement result under the pure air environment among the figure simultaneously.Can find out obviously that by Fig. 4 (a) voltage breakdown under pure air and the sand and dust environment all increases along with the increase of air gap distance, but the latter is starkly lower than the former, and along with air gap distance increases, both difference is obvious further.Same also can get above result by Fig. 4 (b).Quantitatively, under the 7m/s wind friction velocity, when air gap distance is 10mm, voltage breakdown mean value under two kinds of environment differs 2kV, and with respect to the voltage breakdown under the pure air, rate of descent is 12%, when distance increased to 45mm, the voltage breakdown difference had reached 11kV, and rate of descent reaches 24%.Under the 13m/s wind friction velocity, when air gap distance was 10mm, voltage difference was 3kV, and corresponding rate of descent is 18%, and when air gap distance increased to 45mm, voltage difference was 13kV, and rate of descent is about 28%.
The relation of voltage breakdown and sand and dust concentration
Keep wind speed and electrode separation to fix, only change sand and dust concentration and carried out flash test.Take the method for concentration graded to quantize concentration.Fig. 5 (a), Fig. 5 (b) are respectively the graph of a relation of voltage breakdown and sand and dust concentration under 7m/s and two kinds of wind friction velocities of 13m/s, and four curves among every width of cloth figure represent respectively that from top to bottom electrode distance is 10,15,30, the situation of 45mm.As seen from the figure, voltage breakdown increases on a declining curve with sand and dust concentration.Quantitatively, under the 7m/s wind friction velocity, four curve downtrendings are substantially parallel, that is to say that concentration is increased to " 5 " by " 1 ", the voltage breakdown 2-3kV that all descended; Under the 13m/s wind speed, when electrode distance during less than 30mm, the voltage fall still remains in the scope of 2-3kV, but when electrode distance increased to 45mm, the voltage breakdown fall can increase to about 5kV.
Voltage breakdown and respective relationships
Keeping under the certain condition of sand and dust concentration and electrode distance, the change wind speed has carried out flash test, and the result as shown in Figure 6.As seen from Figure 8, under 4 kinds of electrode distances, voltage breakdown all increases to present with wind speed and reduces the trend that afterwards increases earlier.By matched curve as can be known, when electrode distance hour, curve ratio is more smooth; Along with electrode distance increases, it is precipitous that curve becomes, and minimum voltage corresponding air speed scope is 11-13m/s.
By above test findings as can be known, this device experiment result is accurate, can be effective to the bubble-discharge characteristic research under manual simulation's sand and dust environment.Still be not specifically designed at present the proprietary test platform of bubble-discharge research, so that the present invention has is very strong pioneering, have simultaneously cheap, install simple, process of the test good stability, the advantage of easy operating.
Claims (10)
1. the bubble-discharge test unit of manual simulation's high wind and sandstorm is characterized in that, comprises flow field subsystem, electric field subsystem, measurement subsystem; Described flow field subsystem comprises the main air duct of centrifugal blower, experimental cabin and experimental cabin air inlet and air outlet, constitute an airtight circulation flow field by main air duct between experimental cabin and the centrifugal blower, wherein the main air duct of experimental cabin air inlet is provided with and send husky device; Described centrifugal blower and send the drive motor of husky device to be electrically connected with a controller is in order to the control of sand and dust concentration in the control of realization wind speed and the fluid;
The electric field subsystem comprises that the high pressure that is arranged on the experimental cabin two side is introduced terminal and ground connection is introduced terminal, high pressure is introduced terminal and is connected the interior low-field electrode of experimental cabin by the high-field electrode in the electrode separation regulating device connection experimental cabin, ground connection introducing terminal by the electrode separation regulating device, forms air gap between high-field electrode and the low-field electrode;
Measurement subsystem comprises the wind speed measuring device that is arranged on experimental cabin air inlet and air outlet centre position, be arranged on the experimental cabin upper side and extend to the interior sand and dust concentration real-time measurement apparatus of experimental cabin, and be arranged on the flow field temperature measuring equipment of experimental cabin into and out of the centre position, air port over against high and low pressure electrode centers position;
The wind speed that wind speed measuring device is gathered, sand and dust concentration real-time measurement apparatus are gathered the temperature three drive test amount signals of sand and dust concentration, the collection of flow field temperature measuring equipment, deliver to industrial control computer and store, handle and show.
2. the bubble-discharge test unit of manual simulation's high wind as claimed in claim 1 and sandstorm is characterized in that, is provided with the flow field expanding section between described experimental cabin air inlet and air outlet and the main air duct.
3. the bubble-discharge test unit of manual simulation's high wind as claimed in claim 1 and sandstorm, it is characterized in that, described electrode separation regulating device comprises the metal guide rail that is fixed in the experimental cabin side wall surface, and this metal guide rail and high-field electrode or low-field electrode are slidingly connected; Described metal guide rail is provided with distance scale.
4. the bubble-discharge test unit of manual simulation's high wind as claimed in claim 1 and sandstorm is characterized in that, described wind speed measuring device is two pitot tubes, is vertically set on experimental cabin air inlet and air outlet centre position respectively.
5. the bubble-discharge test unit of manual simulation's high wind as claimed in claim 1 and sandstorm is characterized in that, described sand and dust concentration real-time measurement apparatus is a laser particle substrate concentration measuring instrument.
6. the bubble-discharge test unit of manual simulation's high wind as claimed in claim 1 and sandstorm is characterized in that, described flow field temperature measuring equipment is two thermopairs, is separately positioned on experimental cabin air inlet and air outlet centre position.
7. the bubble-discharge test method of manual simulation's high wind and sandstorm, this method is based on the manual simulation's high wind of claim 1 and the bubble-discharge test unit of sandstorm, it is characterized in that: at first clean the high and low pressure electrode surface, installing electrodes is also adjusted anode-cathode distance, the sand and dust sample is put into sent husky device; At the frequency breakdown voltage of measuring air gap between the electrode under the pure air environment, then under different wind speed and sand and dust concentration environment, carry out gap breakdown dispensing electric test then; Pressuring method adopts gradually platen press, and the discreet value of obtaining voltage breakdown by the bubble-discharge test earlier is after the formal measurement beginning, the first step is pressurized to 60% of discreet value, each afterwards pressurization is no more than 2%, and interval time is not less than 5 seconds, takes place up to the gap breakdown discharge; After puncturing generation, write down one group of voltage breakdown and concentration value; Repeat pressurization, every group of test repeats repeatedly, to reduce measuring error, writes down the sand and dust fluid temperature (F.T.) simultaneously as a reference.
8. the bubble-discharge test method of manual simulation's high wind as claimed in claim 7 and sandstorm is characterized in that, described wind speed range is 7-15m/s, and corresponding is low middling sandstorm weather.
9. the bubble-discharge test method of manual simulation's high wind as claimed in claim 7 and sandstorm, it is characterized in that, described sand and dust sample is formulated with pulvis less than dry zeyssatite and the chemical analysis of 50um less than grinding fine sand, the granularity of 100um by granularity, wherein grind quality such as fine sand and dry zeyssatite, the chemical analysis pulvis is salinity NaCl, and its content is determined by trial and error.
10. the bubble-discharge test method of manual simulation's high wind as claimed in claim 9 and sandstorm, it is characterized in that, trial-and-error procedure is as follows: husky sample is dissolved in deionized water, measure its conductivity, and with this zone sandstorm after the insulator surface contamination become branch to join electrical conductivity of solution to compare, change salinity NaCl content, identical up to two kinds of electrical conductivity of solution, determine salinity NaCl content.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4905513A (en) * | 1983-06-17 | 1990-03-06 | Institut De Recherche Et De Development Aerologique Marketing S.A. | Wind speed measuring device |
| CN201107167Y (en) * | 2007-11-20 | 2008-08-27 | 甘肃省治沙研究所 | Magnetic field type sandstorm sediment discharge collecting instrument |
-
2009
- 2009-07-31 CN CN200910023479XA patent/CN101614783B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4905513A (en) * | 1983-06-17 | 1990-03-06 | Institut De Recherche Et De Development Aerologique Marketing S.A. | Wind speed measuring device |
| CN201107167Y (en) * | 2007-11-20 | 2008-08-27 | 甘肃省治沙研究所 | Magnetic field type sandstorm sediment discharge collecting instrument |
Non-Patent Citations (1)
| Title |
|---|
| 贺博等.人工模拟沙尘气候环境下线路绝缘子积污特性研究.《西安交通大学学报》.2008,第42卷(第12期),1510-1514. * |
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| Publication number | Publication date |
|---|---|
| CN101614783A (en) | 2009-12-30 |
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