CN2131231Y - Equipment for arresting lightning - Google Patents
Equipment for arresting lightning Download PDFInfo
- Publication number
- CN2131231Y CN2131231Y CN 92224717 CN92224717U CN2131231Y CN 2131231 Y CN2131231 Y CN 2131231Y CN 92224717 CN92224717 CN 92224717 CN 92224717 U CN92224717 U CN 92224717U CN 2131231 Y CN2131231 Y CN 2131231Y
- Authority
- CN
- China
- Prior art keywords
- thunder
- high resistance
- lightning
- spray point
- metal frame
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a device with the functions of both thunder protection and thunder and lightning elimination, which is composed of parts, such as a metal frame arranged on a supporting rod, a high resistance discharging needle, a filter, and a lightning eliminator, etc., wherein, the metal frame is distributed with a plurality of metal thunder eliminating needles, and can attract charges in a thunder lightning field and gradually dissipate the charges; the charges in thunder clouds can be eliminated through dissipated current of less than 5 amperes in a thunder cloud lightning field which develops fast or a strong thunder cloud lightning field. Compared with the previous lightning rods and a plurality of thunder eliminators, the device has the effect of fast and reliable thunder elimination, and can be used for projects, such as buildings, communication circuits, electric power, etc.
Description
The utility model relates to a kind of equipment of eliminating lightning strike that has.
The method of tradition lightning protection is to use lightning rod, lightning arrester, lightning conduction etc., these Lightning Protection be attract lightning strike itself, replace protected object to be struck by lightning.Since the late nineteen seventies, comprised all over the world how a lot of local all research of China is eliminated the thunder and lightning lotus, prevented the dissipation array that thunder and lightning is launch aed surprise attack over the ground.The representative of these dissipation arrays has: " the dissipation array induction ionization thunder eliminating device " of U.S. dissipation array company (LEA company); " the semiconductor low-long needle lightning-eliminating device " of Wuhan water power institute; " compensation-type arrester using umbrella-shape conducting plate " of Wuhan High Voltage Research Inst., Energy Ministry; The tower dissipation array of Baoding Municipal Electric Power Supply Office; " the diffusing property lightning rod " of France etc.These dissipation arrays can be eliminated part thunder and lightning lotus, but still have the lightning strike dissipation array about 25%.Tracing it to its cause is that above-mentioned dissipation array fails to suppress effectively the leader channel that suddenlys change, and dissipation array has little time to subdue thundercloud electric field strength when thunder and lightning develops rapidly, and then dissipation array just may be struck by lightning.
" a kind of equipment " (application number: 91108036.8) that the inventor has applied for the disappear thunder and the lightning energy of harvesting and storing, described dissipation array is by in the contrast test that dissipation array was done in the past, because of having installed the current limliting filter element additional, the thunder effect that disappears improves about 30% than all dissipation array effects in the past, but still fails to eliminate fully the generation of thunderbolt.
The purpose of this utility model provides a kind of leader channel that can suppress sudden change, radius hundreds of rice is attracted to come with interior thundercloud electric field strength direction, and thunder and lightning lotus wherein dissipated gradually, to booming thundercloud electric field or strong thundercloud electric field, can accomplish the electric charge in the thundercloud to be eliminated, and avoid the thunder and lightning of launch aing surprise attack of hundreds of kiloampere to take place with the dissipation electric current below 5 amperes.
The utility model is realized in following mode: design a lightening inductor of being made up of metal frame and prevention eliminating needle, around reaching, its top is provided with high resistance (as 1 megohm or other resistance value) spray point, be connected on the filter circuit of forming by resistance or inductance and electric capacity, lightening inductor and high resistance spray point are connected to disappear to dodge on the device by can and downlead together and insert the earth, entire equipment is installed on the main support rod, and the sudden strain of a muscle device that disappears can be installed on iron tower or the building.
Below in conjunction with description of drawings principle of the present utility model and enforcement structure.
In the accompanying drawing, many the prevention eliminating needles 4 that distributing on the metal frame 5 and 19 are formed lightening inductor, totally be fixedly connected on the can 15, be connected an end (17 are the outer box of sudden strain of a muscle device insulation that disappears) that disappears and dodge device 18 by downlead 16, the other end that dodges device 18 that disappears inserts the earth 12.
Thundercloud charge induces the charges of different polarity on prevention eliminating needle 4, these charges of different polarity can be overflowed in the needle surface and the part thundercloud charge, and flowing of electric charge can reach milliampere above electric current of level.This electric charge opposite with thundercloud charge that is flowing is enough to make thundercloud electric field strength direction to point to prevention eliminating needle 4, makes that the charge density on this direction reaches maximum.Disappearing and dodging device 18 is one group of inductance coil, and its effect is the leader channel of blocking-up sudden change.When thundercloud electric field strength reach 450 kilovolts/meter launch a surprise attack electric field strength the time, for any dissipation array and lightning rod in the past, the thundercloud electric field will be launch aed surprise attack dissipation array and lightning rod this moment.And lightening inductor can make original 450 kilovolts/meter electric field strength of launch aing surprise attack bring up to 700 kilovolts/meter by the sudden strain of a muscle device 18 that disappears that downlead 16 is connect, and can not launch a surprise attack.Under the state that this superhigh pressure is not launch aed surprise attack, can produce on the prevention eliminating needle 4 greater than in 50 milliamperes the dissipation and electric current.
High resistance spray point 3 in the accompanying drawing has some (minimum more than 3), and general radical is many more, just can make the high resistance spray point do shortly, then makes the cost height too much, and support bar is stressed big.The height and the space width of the high resistance spray point 3 of the aerial all directions of requirement sensing must be greater than metal frame 5,19 and prevention eliminating needles 4.The top of every high resistance spray point is bumped into the metal needle point in order to discharge.Each high resistance discharge needle point is together in parallel with metal wire 1.When discharge, every high resistance spray point can discharge simultaneously like this, has just avoided the shortcoming of single needle discharge sensitive for damages needle body.The bottom of high resistance spray point 3 is connected to filter one end that resistance or inductance 14 and electric capacity 7 constitute with becket 20 and cable 8 parallel connections, and the other end is received on the can 15.Close to high resistance spray point 3 rapidly when strong thundercloud electric field, at this moment high resistance spray point 3 is launch aed surprise attack generation with prevention, and the discharging current that can produce below 5 amperes eliminates thundercloud charge rapidly.
Why can the utility model also eliminate lightning strike under extreme case? its mechanism is as follows:
The lightening inductor that metal frame 5,19 and prevention eliminating needle 4 are formed cooperates with the sudden strain of a muscle device 18 that disappears, and its thunder function that disappears is significant.But concerning with tens meters of per seconds to its thundercloud electric field that moves, then have little time to eliminate thundercloud charge because it is under the protection of high resistance spray point, thunder and lightning field can not be launch aed surprise attack this lightening inductor, can only discharge to the high resistance spray point.When this discharging current passes through the filter of resistance or inductance 14 and electric capacity 7 compositions, the voltage at resistance or inductance 14 two ends forces the pole plate two ends desire of electric capacity 7 to launch a surprise attack, at this moment, the sudden strain of a muscle device 18 that disappears will stop the voltage jump at the pole plate two ends of electric capacity 7, and rapidly voltage is added on the sudden strain of a muscle device 18 that disappears, import the earth 12.So just make that the discharging current on the high resistance spray point 3 is more steady.In addition, supposing that thundercloud once launch as surprise attack charge Q=15 that discharged coulomb, is that 10 ohm lightning rod is launch aed surprise attack to earth resistance, gets and launch as surprise attack time t=40 microsecond, then must launch a surprise attack lightning current
I=(Q)/(t) (15 coulombs)/(40 * 10
-8Second)=375 kilo-amperes
This lightning current is enough to make protected equipment to be strikeed back and responds to damage.
If the resistance of high resistance spray point 3 is R=1 megohm=1 * 10
6Ohm
Thundercloud capacitance over the ground is
C=4 * 10
-6Farad
The thundercloud earth potential difference
U=(Q)/(C)=(15 coulombs)/(4 * 10
-8Farad)=3750 kilovolts
Then thundercloud earth potential difference U to the discharging current of high resistance spray point 3 is:
I=(U)/(R)=(3750 * 10
3Volt)/(1 * 10
8Europe)=3.75 peace doubly
Above lightning parameter all is an extreme case rarely found in the reality.
Because discharge voltage is high, the filter that dodges device 18 and resistance or inductance 14 and electric capacity 7 compositions for preventing from the dielectric surface flashover of high resistance spray point 3, connect to disappear can solve.
Annotate: Fig. 1: be the principal section figure of lightening inductor, high resistance spray point, filter, the sudden strain of a muscle device that disappears.
Fig. 2: be the vertical view of lightening inductor, high resistance spray point.
Each component names in the accompanying drawing
1, metal wire 2, metal needle point 3, high resistance spray point
4, prevention eliminating needle 5, metal frame 6, insulator
7, electric capacity 8, cable 9, insulator
10, main support rod 11, iron tower 12, the earth
13, insulator 14, resistance or inductance 15, can
16, downlead 17, disappear dodge the outer box 18 of device insulation, the sudden strain of a muscle device disappears
19, metal frame 20, becket
Accompanying drawing has been drawn a kind of example structure, and the lightening inductor among the figure can be formed different shape, and high resistance spray point 3 can be made with dress resistance sand in the insulated tube (as the mixture of asbestos and graphite, bauxite, potter's clay ore deposit or the like).High resistance spray point 3 can be used as the part of the support bar of lightening inductor metal frame 5 and 19, and the intersection separates with insulator.Distributed capacitance between also available insulator 13 of electric capacity 7 and the metal frame 5 replaces, and requires withstand voltagely more than 10 kilovolts, and capacitance is not done requirement.Disappear dodge device 18 can be on iron core coiling, require inductance value be the bigger the better (enjoying more than the profit) as 1.Entire equipment is installed in (the sudden strain of a muscle device that disappears can be installed on the iron tower or on the building) on the main support rod 10.And be separated by with it with insulator 13,9 and 6 and come, the withstand voltage level that requires each insulator is more than 10 kilovolts.Main support rod 10 can be welded on iron tower or the building top.And setting height(from bottom) high more good more (as 20 meters on distance ground to more than 300 meters).Earth resistance only requires that the natural grounding of iron tower 11 or building gets final product.Lightning protection effect is good more if earth resistance is more little.This complete equipment has the rapid and reliable effect of the thunder of disappearing effect compared with lightning rod and many dissipation arrays in the past, can be widely used on the engineerings such as building, communication line, electric power.
Claims (6)
1, a kind of equipment with elimination lightning strike, it is characterized in that the lightening inductor that this complete equipment is made up of metal frame 5,19 and prevention eliminating needle 4, around reaching, its top is provided with high resistance spray point 3, be connected on the filter circuit of forming by resistance or inductance 14 and electric capacity 7, lightening inductor and high resistance spray point 3 are connected to disappear to dodge on the device 18 by can 15 and downlead 16 together and insert the earth, entire equipment is installed on the main support rod, and the sudden strain of a muscle device that disappears can be installed on iron tower or the building.
2, equipment according to claim 1, the sudden strain of a muscle device 18 that it is characterized in that disappearing is one group of inductance coil.
3, equipment according to claim 1, many the prevention eliminating needles 4 that it is characterized in that distributing on metal frame 5 and 19 are formed lightening inductor, totally be fixedly connected on the can 15, be connected to disappear by downlead 16 and dodge an end of device 18, the other end that dodges device 18 that disappears inserts the earth 12.
4, equipment according to claim 1, it is characterized in that each high resistance discharge needle point is together in parallel with metal wire 1, the bottom of high resistance spray point 3 is connected to filter one end that resistance or inductance 14 and electric capacity 7 constitute with becket 20 and cable 8 parallel connections, and the other end is received on the can 15.
5, equipment according to claim 1 is characterized in that high resistance spray point 3 is minimum more than 3, and the height and the space width of the high resistance spray point 3 of the aerial all directions of requirement sensing must be greater than metal frame 5,19 and prevention eliminating needles 4.
6, equipment according to claim 1 is characterized in that between can 15, metal frame 5,19 and high resistance spray point 3 and the main support rod 10 being separated by with it with insulator 13,9 and 6 and comes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224717 CN2131231Y (en) | 1992-06-14 | 1992-06-14 | Equipment for arresting lightning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224717 CN2131231Y (en) | 1992-06-14 | 1992-06-14 | Equipment for arresting lightning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2131231Y true CN2131231Y (en) | 1993-04-28 |
Family
ID=33769796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92224717 Expired - Fee Related CN2131231Y (en) | 1992-06-14 | 1992-06-14 | Equipment for arresting lightning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2131231Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391071C (en) * | 2003-11-14 | 2008-05-28 | 万国雷迅科技集团有限公司 | Environment protection type ion lightning arrester for wind-water fan |
-
1992
- 1992-06-14 CN CN 92224717 patent/CN2131231Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391071C (en) * | 2003-11-14 | 2008-05-28 | 万国雷迅科技集团有限公司 | Environment protection type ion lightning arrester for wind-water fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |