CN101782406A - Ice-melting experiment environment simulator of long-string insulator - Google Patents
Ice-melting experiment environment simulator of long-string insulator Download PDFInfo
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- CN101782406A CN101782406A CN201010133370A CN201010133370A CN101782406A CN 101782406 A CN101782406 A CN 101782406A CN 201010133370 A CN201010133370 A CN 201010133370A CN 201010133370 A CN201010133370 A CN 201010133370A CN 101782406 A CN101782406 A CN 101782406A
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Abstract
The invention relates to an ice-melting experiment environment simulator of a long-string insulator, comprising an experiment cabin and a monitoring system. The simulator is characterized in that a plurality of lamp holders are uniformly arranged at intervals along the vertical direction of the inner wall surface of the experiment cabin, each lamp holder is provided with a group of thermal radiation lamps. Optical radiation ice-melting of the invention has the advantages of higher ice-melting efficiency than other ice-melting efficiency, small energy consumption, low operation cost and controllable heating efficiency. The invention can widely applied to the simulated experimental process in extra-high voltage ice-melting environment.
Description
Technical field
The present invention relates to a kind of environment simulator, particularly about a kind of ice-melting experiment environment simulator of long-string insulator.
Background technology
Ground such as the Guizhou Province of China, Hunan Province belong to the subtropical zone, winter, spring are dark and damp rainy, its weather, geographical conditions etc. all easily make overhead transmission line generation icing phenomenon, electrical strength reduces greatly behind the covering ice for insulator on the overhead transmission line, causes ice sudden strain of a muscle accident and physical disturbance take place under operating voltage easily.A large amount of operating experience and observation data show both at home and abroad, and when the heat effect of temperature rising, solar radiation and local arc made the icing insulator surface continuous moisture film occur, promptly under the ice-melt state, it is the highest that ice dodges accident rate.
The thawing of ice is the process of a phase transformation, and water passes solid-liquid two-phase region, changes saturated liquid into by saturated solid.For example, the ice that is in-20 ℃ in experimental cabin is from solid state shape, along a certain isobar heating, carries out the transition to the solid-liquid admixture, and this process is the heating of solid phase level pressure, and the temperature of pure material raises but volume change is little in this process; The solid-liquid admixture is on the boundary line of solid phase area and melt zone, continuing heat solid begins to melt, the two-phase region that pure material has just entered solid phase and liquid phase and deposited, become mixture of ice and water, the temperature of pure material remains unchanged in this process, pressure also remains unchanged, and finishes up to thawing, and pure material is in liquid state fully.If complete simulated solar irradiation is tested in the ice-melt of long-string insulator, the icing long-string insulator is slowly heated arrival solid-liquid admixture from-20 ℃ of beginnings, will make process of the test length consuming time, efficient low, therefore generally not adopt the mode of this simulated solar irradiation ice-melt.
The method of the test of ice-melt at present mainly adopts outer hot-fluid and temperature device that icing is heated, thereby reaches the effect of ice-melt.But because the highway section climatic environment that UHV transmission line experienced presents complicated diversity, so, the ice of insulator dodges the situation complexity, and electric pressure is high more, and required testing equipment is just huge more, if adopt outer hot-fluid that icing is heated, promptly open hatch door, directly rise again, this method speed of rising again is slow, mainly is applicable to the minienvironment analog machine; If adopt temperature device that icing is heated, i.e. directly discharge heater heating below insulator, this de-icing method can't carry out effective control of temperature rise in process of the test, and heating is uneven.
Also have a kind of method of utilizing heat radiation to carry out ice-melt, this method is utilized solar simulator and the outside radiation emitted energy of infrared heater, carries out the ice-melt test.This method can simulated solar irradiation, adopts contactless heating, can be more satisfactory reach the ice-melt effect, but present large-scale solar simulator also is not used in the high voltage ice-melting experiment environment simulation process.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of ice-melting experiment environment simulator of long-string insulator, its ice-melt efficient height, and the deicing processes temperature rise rate is controlled.
For achieving the above object, the present invention takes following technical scheme: a kind of ice-melting experiment environment simulator of long-string insulator, it comprises an experimental cabin and a monitoring system, it is characterized in that: vertical along described experimental cabin internal face, evenly be arranged at intervals with some lamp brackets, all be provided with one group of heat radiation lamp on the every described lamp bracket.
Each described heat radiation lamp all comprises a parabolic reflector lamp cover and a bulb, and described bulb is arranged on the parabolic focus place of described lampshade, and the angle of described heat radiation lamp can be adjusted.
Described bulb is one of them of xenon lamp, infrared lamp.
Every group of described heat radiation lamp is electrically connected a PCU Power Conditioning Unit, and described PCU Power Conditioning Unit connects described monitoring system.
Be provided with three lamp brackets in the described experimental cabin, described lamp bracket is along described experimental cabin internal face, 120 ° of vertical settings at interval.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to be provided with three lamp brackets for 120 ° at experimental cabin inwall interval, each lamp bracket is provided with one group of heat radiation lamp, and the small cup of every group of heat radiation lamp is several tests data and/or Theoretical Calculation draws factually, and can adjust in each 10 ° of scope in heat radiation lamp upper and lower, left and right, therefore, can adjust lamp bracket level and/or the vertical error that produces is installed; Guarantee that heat flow value that the lamp battle array is radiated the regulation zone satisfies the needs of absorption maximum heat flow value, avoids waste; Guarantee the heat flux distribution unevenness in each regulation zone, be limited in positive and negative 10%; Guarantee hot-fluid between each zone minimum that influences each other.2, the present invention is owing to adopt the radiating light source of heat radiation lamp that long-string insulator is heated, therefore, (insulator of 500kV～1000kV) can be realized simulated solar illumination ice-melt by non-contact technology, and not form any air-flow around insulator not need directly contact to have high pressure.3, the present invention is owing to be radiated at the light ray of heat radiation lamp on the long-string insulator of icing its heating, therefore only need that long-string insulator is carried out spot heating and can finish ice-melt, temperature in the whole boiler-plate is all gone back up to more than 0 ℃, therefore very energy-conservation, operating cost is low, after finishing one group of ice-melt test, can begin to carry out next group ice-melt test (need not pass through very long temperature-fall period) soon.4, the present invention is owing to be provided with a PCU Power Conditioning Unit in the lamp bracket bottom, therefore, reaching before 0 ℃, can heighten heating power, fast the icing insulator is heated, raise the efficiency, behind the melt temperature that reaches ice, reduce the heating power of system by PCU Power Conditioning Unit, make insulator temperature rise rate dT/dt＜1K/h on every side, and then the sun has been avoided other de-icing methods because the inaccurate shortcoming of the too fast test figure that causes of temperature rise according to the temperature rise rate of establishing in the deicing processes in the simulation actual environment.The present invention adopts the optical radiation ice-melt than other class ice-melt efficient height, and consumes energy is few, and operating cost is low, and the may command heating power, can be widely used in the simulation test procedure of high voltage ice-melt environment.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a schematic top plan view of the present invention
Fig. 3 is an xenon lamp structural representation of the present invention
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes an experimental cabin 1, the middle part of experimental cabin 1 is the straight tube of a column type, and the top is protruding upward ball crown type end socket, and the bottom is slightly to cabin body internal projection.Vertical along experimental cabin 1 internal face evenly is arranged at intervals with some lamp brackets 2, in the present embodiment, for three lamp brackets 2 are set, between the every lamp bracket 2 120 ° at interval.Every lamp bracket 2 is provided with one group of heat radiation lamp 3, the sunshine of the light that heat radiation lamp 3 sends under can simulating natural condition.
As shown in Figure 3, each heat radiation lamp 3 comprises the lampshade 4 and a bulb 5 of a paraboloidal, bulb 5 is arranged on the parabolic focus place of lampshade 4, the light that this structure can make heat radiation lamp 3 break forth is concentrated, the hot spot that forms is a column, dispersion angle is little, and more heat can be provided, and realizes ice-melt more efficiently.Can adjust in the 10 ° of scopes in every heat radiation lamp 3 upper and lower, left and right, level and/or the vertical error that produces is installed so that adjust lamp bracket 2.The small cup number of every group of heat radiation lamp 3 can draw according to experimental data and/or Theoretical Calculation, adopt 99 heat radiation lamps 3 in the present embodiment, can guarantee that like this heat flow value that the lamp battle array is radiated the regulation zone satisfies the needs of absorption maximum heat flow value, reduce the loss, reduce and consume, and with the heat flux distribution unevenness in each regulation zone, be limited in positive and negative 10% scope, make hot-fluid between each zone minimum that influences each other.
Every lamp bracket 2 bottoms are provided with a PCU Power Conditioning Unit 6, and each PCU Power Conditioning Unit 6 one ends are electrically connected with corresponding one group of heat radiation lamp 3, and the other end connects a monitoring system (not shown).Monitoring system is used for the process of the test of 1 inside, monitoring test cabin, obtains test figure more accurately, and while power controlling regulating device 6 is by the electric power of heat radiation lamp 3 in the PCU Power Conditioning Unit 6 adjusting tests.This monitoring system has been a mature technology in this area, does not repeat them here.
Describe the process that the present invention simulates the ice-melt test below in detail:
In the foregoing description, bulb 5 can adopt xenon lamp, also can adopt infrared lamp.
In the foregoing description, PCU Power Conditioning Unit 6 also can replace with voltage regulating device.
The foregoing description only is used to illustrate the present invention; wherein the structure of each parts, the position is set and connected mode all can change to some extent; every improvement of carrying out on the basis of technical solution of the present invention and equivalents all should not got rid of outside protection scope of the present invention.
Claims (8)
1. the ice-melting experiment environment simulator of a long-string insulator, it comprises an experimental cabin and a monitoring system, it is characterized in that: vertical along described experimental cabin internal face, evenly be arranged at intervals with some lamp brackets, all be provided with one group of heat radiation lamp on the every described lamp bracket.
2. the ice-melting experiment environment simulator of a kind of long-string insulator as claimed in claim 1, it is characterized in that: each described heat radiation lamp all comprises a parabolic reflector lamp cover and a bulb, described bulb is arranged on the parabolic focus place of described lampshade, and the angle of described heat radiation lamp can be adjusted.
3. the ice-melting experiment environment simulator of a kind of long-string insulator as claimed in claim 2, it is characterized in that: described bulb is one of them of xenon lamp, infrared lamp.
4. as the ice-melting experiment environment simulator of claim 1 or 2 or 3 described a kind of long-string insulators, it is characterized in that: every group of described heat radiation lamp is electrically connected a PCU Power Conditioning Unit, and described PCU Power Conditioning Unit connects described monitoring system.
5. as the ice-melting experiment environment simulator of claim 1 or 2 or 3 described a kind of long-string insulators, it is characterized in that: every group of described heat radiation lamp is electrically connected a voltage regulating device, and described voltage regulating device connects described monitoring system.
6. as the ice-melting experiment environment simulator of claim 1 or 2 or 3 described a kind of long-string insulators, it is characterized in that: be provided with three lamp brackets in the described experimental cabin, described lamp bracket is along described experimental cabin internal face, 120 ° of vertical settings at interval.
7. the ice-melting experiment environment simulator of a kind of long-string insulator as claimed in claim 4 is characterized in that: be provided with three lamp brackets in the described experimental cabin, described lamp bracket is along described experimental cabin internal face, 120 ° of vertical settings at interval.
8. the ice-melting experiment environment simulator of a kind of long-string insulator as claimed in claim 5 is characterized in that: be provided with three lamp brackets in the described experimental cabin, described lamp bracket is along the 120 ° of vertical settings at interval of described experimental cabin internal face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101333704A CN101782406B (en) | 2010-03-10 | 2010-03-10 | Ice-melting experiment environment simulator of long-string insulator |
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| CN2010101333704A CN101782406B (en) | 2010-03-10 | 2010-03-10 | Ice-melting experiment environment simulator of long-string insulator |
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| CN101782406B CN101782406B (en) | 2012-07-04 |
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Cited By (5)
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|---|---|---|---|---|
| CN102166536A (en) * | 2011-03-02 | 2011-08-31 | 中国民航大学 | An environment analogue means for surface freezing of airplanes on ground |
| CN105239526A (en) * | 2015-11-22 | 2016-01-13 | 无锡同春新能源科技有限公司 | Thermal radiation device for preventing ramp road surface from icing |
| CN106229870A (en) * | 2016-08-10 | 2016-12-14 | 国网湖南省电力公司 | A kind of icing converting equipment heat build-up deicer and method |
| CN106786123A (en) * | 2016-12-23 | 2017-05-31 | 中国电力科学研究院 | Wall bushing device for removing snow and ice and method |
| CN113390456A (en) * | 2021-05-23 | 2021-09-14 | 浙江大学 | Transmission line optional deicing form simulation device and dynamic response monitoring system |
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| JP2002368510A (en) * | 2001-06-06 | 2002-12-20 | Nippon Antenna Co Ltd | Snow melting device |
| CN201178006Y (en) * | 2008-03-06 | 2009-01-07 | 中国电力科学研究院 | Ice melting apparatus for in-can insulator |
| CN101672666A (en) * | 2008-09-10 | 2010-03-17 | 华东电力试验研究院有限公司 | Test method for icing and deicing of transmission line and test system thereof |
| CN101707328A (en) * | 2009-12-08 | 2010-05-12 | 国网电力科学研究院 | Low-temperature high-pressure hot wind deicing method for transformer substation |
| CN101806850A (en) * | 2010-03-10 | 2010-08-18 | 中国电力科学研究院 | Climate environment simulation test method |
| CN201740543U (en) * | 2010-03-10 | 2011-02-09 | 北京航空航天大学 | Ice melting test environment simulation device for long insulator string |
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2010
- 2010-03-10 CN CN2010101333704A patent/CN101782406B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002368510A (en) * | 2001-06-06 | 2002-12-20 | Nippon Antenna Co Ltd | Snow melting device |
| CN201178006Y (en) * | 2008-03-06 | 2009-01-07 | 中国电力科学研究院 | Ice melting apparatus for in-can insulator |
| CN101672666A (en) * | 2008-09-10 | 2010-03-17 | 华东电力试验研究院有限公司 | Test method for icing and deicing of transmission line and test system thereof |
| CN101707328A (en) * | 2009-12-08 | 2010-05-12 | 国网电力科学研究院 | Low-temperature high-pressure hot wind deicing method for transformer substation |
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| CN201740543U (en) * | 2010-03-10 | 2011-02-09 | 北京航空航天大学 | Ice melting test environment simulation device for long insulator string |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166536A (en) * | 2011-03-02 | 2011-08-31 | 中国民航大学 | An environment analogue means for surface freezing of airplanes on ground |
| CN102166536B (en) * | 2011-03-02 | 2013-01-16 | 中国民航大学 | An environment analogue means for surface freezing of airplanes on ground |
| CN105239526A (en) * | 2015-11-22 | 2016-01-13 | 无锡同春新能源科技有限公司 | Thermal radiation device for preventing ramp road surface from icing |
| CN106229870A (en) * | 2016-08-10 | 2016-12-14 | 国网湖南省电力公司 | A kind of icing converting equipment heat build-up deicer and method |
| CN106229870B (en) * | 2016-08-10 | 2017-08-08 | 国网湖南省电力公司 | A kind of icing transformer heat build-up deicer and method |
| CN106786123A (en) * | 2016-12-23 | 2017-05-31 | 中国电力科学研究院 | Wall bushing device for removing snow and ice and method |
| CN113390456A (en) * | 2021-05-23 | 2021-09-14 | 浙江大学 | Transmission line optional deicing form simulation device and dynamic response monitoring system |
| CN113390456B (en) * | 2021-05-23 | 2022-12-02 | 浙江大学 | Power transmission conductor optional deicing form simulation device and dynamic response monitoring system |
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| CN101782406B (en) | 2012-07-04 |
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