CN1049531C - Active lightening-protection method and equipment producing high-conductivity atmospheric layer - Google Patents

Active lightening-protection method and equipment producing high-conductivity atmospheric layer Download PDF

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Publication number
CN1049531C
CN1049531C CN 95117424 CN95117424A CN1049531C CN 1049531 C CN1049531 C CN 1049531C CN 95117424 CN95117424 CN 95117424 CN 95117424 A CN95117424 A CN 95117424A CN 1049531 C CN1049531 C CN 1049531C
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lightning
charged particle
protected object
conductivity
active
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Expired - Fee Related
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CN 95117424
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CN1139304A (en
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庄洪春
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National Space Science Center of CAS
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Abstract

The present invention relates to an active lightning preventing and lightning arresting method and a device thereof for manufacturing an air layer with high conductivity. The present invention is mainly characterized in that when the lightning stroke probability of a protected object reaches more than 40 to 60%, the method is used for manufacturing a high conductivity air protective layer with more than 5*10<10> /m<3> of the number density of charged particles and 1 to 8 meters of thickness at the circumference of the protected object within 90 seconds. The present invention is additionally characterized in that the active lightning preventing and lightning arresting device for manufacturing the air layer with high conductivity is composed of a lightning stroke danger monitor 1, a particle generator 3, an airflow conveyer 4 and CPU 2. A lightning channel is cut off, and the omnibearing lightning prevention and the omnibearing lightning arrest to buildings are realized. Besides, the device has the advantage of low manufacturing cost.

Description

Make high-conductivity atmospheric layer initiatively lightning protection lightning protection method and device
The present invention relates to initiatively make high-conductivity atmospheric layer lightning protection lightning protection method.
The research history in existing century more than two of anti-lightning strike technology.Franklin lightning rod the earliest is to be invented by the Franklin fifties in 18th century.Its principle is the earthing conductor that exceeds protected building with, has changed the electric field strength of thundercloud charge around building.Make that the electric field strength of building surface is under breakdown value when the electric field strength of lightning-arrest needle point reaches breakdown value.
Faraday's cage lightning protection method of Shi Yonging was to utilize ground connection reinforcing bar or the copper strips net be enclosed in around the building to play shielding action afterwards, and the electric field strength that makes interior building weakens greatly and do not reach breakdown value.
The various dissipation arrays of releasing then are to utilize the corona discharge phenomenon recently, make the electric field strength at building place not reach breakdown value all the time.
In a word, the existing lightning-arrest or thunder technology that disappears in fact all is the passive electric field strength that reduce or suppress the protected object place such as tip, corona discharge or metal mesh shield with metal needle, makes it not reach breakdown value.
The purpose of this invention is to provide the atmospheric active lightning protection of a kind of manufacturing high conductivity lightning protection method, overcome traditional lightning arrester and dissipation array passive reduce or suppress the protected object place electric field strength cover disease.
Low this qualitativing concept of electric field strength is well-known in the high conductivity medium, metal inside electric field strength is almost nil, exactly because the existence of the interior free-moving electronics of metal makes conductance very high, when so any high electric field occurs, the electric current of tending to act out immediately, make the metal inside electric charge redistribute, electric field strength reduces as a result.The regional electric field strength that conductance is high in the medium just a little less than.Same reason; if can around protected object, produce one deck high-conductivity atmospheric layer, just just can become the protective layer of low electric field strength, because conductance is proportional to the charged particle number density; therefore as long as improve charged particle number density in the gas-bearing formation, the conductance of gas-bearing formation just improves simultaneously.The surface air conductivity is 2 * 10 when fine -16Ω -1Cm -1Magnitude, charged particle number density are 5 * 10 6/ m 3Magnitude.Conductance exceeds more than 100 times when fine in the protection gas-bearing formation if make.Just can play the protective effect of lightning protection.
Main feature of the present invention is to be reached 40~60% when above when protected object by the lightning risk probability, and initiatively making the charged particle number density around 90 seconds inherent protected objects is greater than 5 * 10 10Individual/m 3The Buchholz protection layer of 1~8 meter thick high conductivity.
Another main feature of the present invention is by being used to monitor lightning risk monitor 1; be used to produce the particle generator 3 of charged particle, the particle of said particle generator 3 take place sum equal in 90 seconds, to produce around every square metre of protected object 1~8 meter thick in 5 * 10 10Individual/m 3Charged particle multiply by the gross area of protected object again, is used to carry the pneumatic conveyer 4 of charged particle and receives lightning risk monitor 1 Monitoring Data and the CPU2 composition of control keying particle generator 3 and pneumatic conveyer 4.
The present invention compares with the thunder technology that disappears with traditional lightning-protecting engineering, and following advantage is arranged:
(1) coefficient of safety is big and adjustable.High-conductivity atmospheric layer is thick more, lightning-arrest
Coefficient of safety is just big more.Produce by the adjustment charged particle generator
Particle weight just can change coefficient of safety.
(2) protection thoroughly.High-conductivity atmospheric layer can cover whole protected object surface,
The thunderbolt that comes for any direction can have same protective effect.
(3) entire spectrum is lightning-arrest.To the high fdrequency component of thunderbolt, protective layer is cut equally
Disconnected effect is taken shelter from the thunder so this lightning-protecting engineering is an entire spectrum.
(4) there is not the side effect of drawing thunder.
(5) not having other derives from dangerous.The present invention does not have conventional lightning conductor to let out to ground
The time destructive inductive impulse that indoor electrical equipment is caused, do not keep away yet
Near the such step voltage in the ground thunder pin.
(6) cost is low.A rocket launching tower needs 150 with the lightning-arrest lightning protection of conventional method
Ten thousand yuans, and can give other supporting system of emission, as to logical
The news system impacts, and only needs 200,000 yuans with the present invention, and
And do not bring other influence.
Fig. 1 is for making the active lightning protection lightning arrester block diagram of high-conductivity atmospheric layer.1 is the lightning risk monitor, and 2 is CPU, and 3 is charged particle generator, and 4 is pneumatic conveyer.
Discuss the present invention below in conjunction with Fig. 1.
The lightning risk monitor is monitored protected object ambient atmosphere conductance situation at any time; especially protected object top atmosphere conductance situation; and real-time Transmission is given CPU2; compare through CPU2 and internal storage data; confirm that the lightning risk probability has reached 40~60% and just opened charged particle generator 3 and pneumatic conveyer 4 when above, in 90 seconds around protected object rapidly one 1~8 meter thick charged particle number density of manufacturing be greater than 5 * 10 10Individual/m 3High-conductivity atmospheric layer.Increase along with atmosphere charged particle number density; electric field strength around the protected object reduces gradually; when judging, CPU2 dropped to when suffering lightning risk probability 40% following; charged particle generator 3 and pneumatic conveyer 4 are closed in CPU2 control, thereby finish the lightning-arrest function of the lightning protection of making high-conductivity atmospheric layer.

Claims (3)

1, makes the active lightning protection lightning protection method of high-conductivity atmospheric layer; it is characterized in that reaching 40% when above when protected object is subjected to the lightning risk probability; produce charged particle by charged particle generator; pneumatic conveyer be transported to protected object around, forming positive and negative charged particle concentration around the protected object is 5 * 10 10Individual/m 3Above high conductivity Buchholz protection layer.
2, make the active lightning protection lightning arrester of high-conductivity atmospheric layer, it is characterized in that becoming with the air-flow conveyor sets by charged particle generator.Produce charged particle by charged particle generator, pneumatic conveyer be transported to protected object around, forming positive and negative charged particle concentration around protected object is 5 * 10 10Individual/m 3Above high conductivity Buchholz protection layer.
3, according to the active lightning protection lightning arrester of claim 2, it is characterized in that this device also comprises a cover lightning risk monitor, monitor protected object ambient atmosphere electric field situation at any time, especially protected object top electric field situation, and real-time Transmission is given CPU.Confirm that through CPU the lightning risk probability has reached 40% when above, just open charged particle generator and pneumatic conveyer, positive and negative charged particle concentration of formation is 5 * 10 rapidly around protected object 10Individual/m 3Above high-conductivity atmospheric layer.Dropped to 40% when following when CPU judges the lightning risk probability, charged particle generator and pneumatic conveyer are closed in CPU control, take shelter from the thunder thereby finish lightning protection.
CN 95117424 1995-11-06 1995-11-06 Active lightening-protection method and equipment producing high-conductivity atmospheric layer Expired - Fee Related CN1049531C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 95117424 CN1049531C (en) 1995-11-06 1995-11-06 Active lightening-protection method and equipment producing high-conductivity atmospheric layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 95117424 CN1049531C (en) 1995-11-06 1995-11-06 Active lightening-protection method and equipment producing high-conductivity atmospheric layer

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CN1139304A CN1139304A (en) 1997-01-01
CN1049531C true CN1049531C (en) 2000-02-16

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CN 95117424 Expired - Fee Related CN1049531C (en) 1995-11-06 1995-11-06 Active lightening-protection method and equipment producing high-conductivity atmospheric layer

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1130958C (en) * 1999-12-30 2003-12-10 中国科学院空间科学与应用研究中心 Vacuum plasma lightning arresting method and device
CN2456342Y (en) * 2000-12-28 2001-10-24 张世锭 Device for amplifying and slow releasing electric charges in plasma lightning arresting technology
CN108539582A (en) * 2017-03-02 2018-09-14 中国移动通信集团广东有限公司 A kind of lightning arrester
CN107482319B (en) * 2017-07-27 2020-11-17 西安爱邦电磁技术有限责任公司 Lightning protection system and method for active radio frequency antenna
CN110250937B (en) 2017-08-09 2020-09-04 沙克忍者运营有限责任公司 Cooking system
US20190254476A1 (en) 2019-02-25 2019-08-22 Sharkninja Operating Llc Cooking device and components thereof
WO2020176477A1 (en) 2019-02-25 2020-09-03 Sharkninja Operating Llc Cooking system with guard
US20210121012A1 (en) 2020-03-30 2021-04-29 Sharkninja Operating Llc Cooking device and components thereof

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