CN103066401A - Direct lightning protection and ground connection method in inflammable and explosive places - Google Patents
Direct lightning protection and ground connection method in inflammable and explosive places Download PDFInfo
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- CN103066401A CN103066401A CN2013100046123A CN201310004612A CN103066401A CN 103066401 A CN103066401 A CN 103066401A CN 2013100046123 A CN2013100046123 A CN 2013100046123A CN 201310004612 A CN201310004612 A CN 201310004612A CN 103066401 A CN103066401 A CN 103066401A
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Abstract
The invention discloses a direct lightning protection and ground connection method in inflammable and explosive places. The direct lightning protection and ground connection method in the inflammable and explosive places is composed by utilizing a dedicated lighting protection framework, an upper layer lighting protection net, a side lightning protection line and a dedicate grounding device arranged outwards. Compared with a traditional lightning protection method of a lightning rod, the direct lightning protection and ground connection method passively triggers lightning, has good shielding effect of direct lightning and strong pertinence, and is capable of preventing shielding-failure lightning from the side. The dedicated grounding device enables disruptive sparks not to endanger inflammable and explosive matter and has the advantage of being safe in lightning protection in inflammable and explosive places.
Description
Technical field
The present invention is mainly concerned with the protection of inflammable and explosive place direct lightning strike and ground connection field, refers in particular to a kind of inflammable, direct striking thunder prevention in explosive place and the method for ground connection.
Technical background
Inflammable, the explosive places such as the gas drainage under suction station of heavy fiery colliery, oil depot, gas station are because its inside is inflammable, explosion hazard gases concentration is high, and be laid with many inflammable, explosion hazard gases pipelines, therefore, these places belong to one-level fire prevention place, and pyrotechnics is had strict requirement of shelter.At present, these places mainly are to rely on lightning rod and dissipation array to protect to the protection of direct lightning strike.Lightning rod and dissipation array are to utilize the principle of point discharge that protected object is carried out lightning protection; when above lightning rod and the dissipation array lightening activity being arranged; under the effect of thundercloud electric field; make its most advanced and sophisticated place form the space electric field distortion; lure that lightning leader develops to it into; or development head-on guide upwards, enter ground thereby thunder and lightning guided into self and draw thunder by earthing device, exempt from thunderbolt with the equipment that shields in its protection range.
Utilize this traditional lightning rod and dissipation array protected mode that the direct lightning strike protection is carried out in inflammable, explosive place and have very large potential safety hazard; because they all are to protect by the principle of " drawing thunder "; " discharge process " that it produces in drawing ray process is actually a kind of strong charging neutrality process; strong arc discharge can occur; produce spark and high temperature; emit a large amount of heat, very easily inflammable, the explosive material in the place is ignited.Moreover, be distributed with many inflammable, explosion hazard gases pipelines in inflammable, the explosive place, when powerful lightning current passes through the down conductor inflow the earth of lightning rod, be easy to cause the spark-over of soil, produce electric spark; If have most advanced and sophisticated burr or gap near the metal material the down conductor of lightning rod, when the thunder and lightning inflow place, can produce electric spark, inflammable, the explosive material in the place of very easily igniting causes serious fire, explosion accident.Domestic just inflammable, explosive place once repeatedly occured because suffering the accident of direct lightning strike breaking out of fire.
Protect at the unsafe factor aspect the direct lightning strike protection of inflammable, explosive place based on traditional lightning rod and dissipation array; the present invention is directed to inflammable, explosive place direct lightning strike protection characteristics and invented a kind of targetedly direct lightning strike protection and earthing method; the method and conventional lightning conductor with dissipation array guard method compare and initiatively do not draw thunder; can shield top, inflammable, explosive place direct lightning strike; can protect again side, inflammable, explosive place thunderbolt, the Special grounding device prevents that thunder and lightning from flowing into the living disruptive spark of real estate and involving inflammable, explosive material simultaneously.
Summary of the invention
The present invention is directed to the potential safety hazard that the one-level fire prevention such as inflammable, explosive place adopts traditional lightning rod protection direct lightning strike to bring, proposed a kind ofly neither initiatively to draw thunder, can effectively protect direct lightning strike again, simultaneously again can be rapidly, safely new direct lightning strike protection and the earthing method of loose inflow place.
For solving the problems of the technologies described above, the solution that the present invention proposes is: as shown in Figure 1, set up framework around in inflammable, explosive place, at framework installing direct lightning strike protective cover, and lay lightning conducter at protective cover, form a upper strata lightning conduction that covers the protected object top with the protection direct lightning strike, the vertical height of this lightning conduction and protected object is greater than 6m; And below the lightning conduction of upper strata, set up the anti-shielding lightning conducter in side with protection side direction around shocking, the horizontal range of this lightning conducter and protected object is greater than 6m.Simultaneously, draw earthing device outward, the Special grounding device is laid in inflammable, explosive place outside, make inflammable, explosion hazard gases pipeline in itself and the place keep certain distance, prevent that lightning current is to inside, place diffusing, avoid soil spark-over occurs when the thunder and lightning inflow place, produce electric spark and involve inflammable, explosive material.In addition, also the most advanced and sophisticated burr of the metal material of the anti-direct thunder striking device down conductor in inflammable, the explosive place is processed and removed, avoid when the thunder and lightning inflow place, producing point discharge and cause fire.
Compare with traditional lightning conductor protection technology, the present invention has following advantage:
(1) is not easy to draw thunder
At first, the present invention sets up framework around in inflammable, explosive place, and the height of framework is lower than the height of conventional lightning conductor, and there is not the tip in the top, and than original lightning rod, it draws the thunder successful and reduces.And be equiped with the direct lightning strike protective cover at framework, its structure chart as shown in Figure 4, this device profile is a grading shield, utilize the uniform electric field principle of the netted conductive surface of hemisphere, when the framework upper end has thundercloud movable, what produce at the grading shield near surface is uniform electric field or non-uniform electric field slightly, do not cause electric field distortion, thereby be not directed at the surrounding air breakdown potential from, do not lure that lightning leader develops to it into, do not form upward leader yet, namely directly do not draw thunder, therefore just greatly reduce inflammable, the probability that is struck by lightning in explosive place has improved its safe effect.
(2) has good direct striking thunder prevention effect
The present invention adopts the anti-shielding lightning conducter of upper strata lightning conduction and side that inflammable, explosive place is protected, and by the upper strata lightning conduction protected object is shielded targetedly, with the protection direct lightning strike; Set up simultaneously the anti-shielding lightning conducter in side with protection side direction around shocking below the lightning conduction of upper strata, whole lightning-protection system has good shield effectiveness, and is with strong points.The effect of its direct striking thunder prevention is better than lightning rod and dissipation array.
(3) the Special grounding device of outwards arranging has prevented that the lightning impulse disruptive spark from jeopardizing inflammable, explosive material
It is outside that earthing device of the present invention all is positioned at inflammable, explosive place, its concrete laying situation is as shown in Figure 5: it is inner that all earthing device all do not enter inflammable, explosive place, and maintain a certain distance between inflammable, the explosion hazard gases pipeline of inside, guarantee when lightning strikes, powerful lightning current can be by earthing device rapidly safely to outside diffusing, and do not flow into inside, place, when avoiding soil spark-over, produce electric spark and jeopardize inflammable, explosive material.
Description of drawings
Fig. 1 design sketch
Fig. 2 plan front view
Fig. 3 top plan view
Fig. 4 direct lightning strike protective device
Fig. 5 Special grounding device
Fig. 6 earthing device cutaway view.
Embodiment
As shown in Figure 1, the present invention is the direct lightning strike protection of a kind of novel inflammable, explosive place and earthing method, set up framework (1) around in inflammable, explosive place, at framework installing direct lightning strike protective cover (2), the anti-shielding lightning conducter (4) of upper strata lightning conduction (3) and side.Shown in accompanying drawing 2,3, the vertical height between upper strata lightning conduction (3) and the protected object is greater than 6m, and the horizontal range between the anti-shielding lightning conducter (4) in side and the protected object is greater than 6m.As shown in Figure 5, to inflammable, explosive place disposed outside Special grounding device (6), guarantee that all earthing device reliably effectively weld and do not enter in inflammable, the explosive place at the framework place.Simultaneously, tip and the gap of near the metal material the anti-direct thunder striking device down conductor in the place are processed and removed.
Operation principle of the present invention is: the direct lightning strike protection is carried out with lightning conduction replacement independent lightning rod and dissipation array in inflammable, explosive place, by the upper strata lightning conduction protected object is shielded targetedly, with the protection direct lightning strike; Set up simultaneously the anti-shielding lightning conducter in side with protection side direction around shocking below the lightning conduction of upper strata, whole lightning-protection system has good shield effectiveness, and is with strong points, and the effect of its direct striking thunder prevention is better than lightning rod and dissipation array.Compare with independent lightning rod, the aspect ratio of framework is lower, and its effect of drawing thunder will be weaker than lightning rod; And be equiped with the direct lightning strike protective cover on the framework, this device profile is a grading shield, utilize the uniform electric field principle of the netted conductive surface of hemisphere, when framework upper end had thundercloud movable, what produce at the grading shield near surface was uniform electric field or non-uniform electric field slightly, does not cause electric field distortion, thereby be not directed at the surrounding air breakdown potential from, do not lure that lightning leader develops to it into, do not form upward leader yet, namely directly do not draw thunder.Simultaneously, earthing device inflammable, explosive place is arranged in outside the place, keep certain distance with inflammable, the explosion hazard gases pipeline of inside, when lightning strikes, lightning current can outwards be let out the inflow place rapidly, safely, and do not flow into inside, place, when avoiding soil spark-over, produce electric spark and jeopardize inflammable, explosive material.
The above only is preferred implementation of the present invention, and protection scope of the present invention also not only is confined to above-described embodiment, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the principle of the invention prerequisite, such as the position that changes framework, change framework number etc., these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a novel direct lightning strike inflammable, explosive place protects and earthing method, it is by framework (1), direct lightning strike protective cover (2), upper strata lightning conduction (3), the anti-shielding lightning conducter (4) in side consist of, and the upper strata lightning conduction covers protected object (5) top; Special grounding device (6) forms.
2. direct lightning stroke protective method according to claim 1, it is characterized in that: framework (1) is around inflammable, explosive place, and it highly is lower than traditional independent lightning rod, and there is not the tip in the top, at framework installing direct lightning strike protective cover (2); Upper strata lightning conduction (3), the height of upper strata lightning conduction (3) and protected object (5) is greater than 6m.
3. the horizontal range of the anti-shielding lightning conducter (4) in side and protected object (5) is greater than 6m.
4. upper strata lightning conduction according to claim 2 (3) is characterized in that: the upper strata lightning conduction covers the framework top, and the anti-shielding lightning conducter (4) in side is arranged in the side of protected object (5).
5. described Special grounding device (6) is characterized in that according to claim 1: the earthing device of laying from lightning protection framework lower end to the outside; maintain a certain distance with inflammable, the explosion hazard gases pipeline of protected object (5), the disruptive spark that produces when preventing the thunder and lightning inflow place inwardly involves inflammable, explosive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100046123A CN103066401A (en) | 2013-01-07 | 2013-01-07 | Direct lightning protection and ground connection method in inflammable and explosive places |
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| CN2013100046123A CN103066401A (en) | 2013-01-07 | 2013-01-07 | Direct lightning protection and ground connection method in inflammable and explosive places |
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| CN103066401A true CN103066401A (en) | 2013-04-24 |
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| CN2013100046123A Pending CN103066401A (en) | 2013-01-07 | 2013-01-07 | Direct lightning protection and ground connection method in inflammable and explosive places |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538922A (en) * | 2015-01-29 | 2015-04-22 | 中国能源建设集团广东省电力设计研究院有限公司 | Lighting protection method and lighting protection device for convertor station |
| CN105262041A (en) * | 2015-11-03 | 2016-01-20 | 国网山东济南市历城区供电公司 | Lightning arrester in mine field |
| CN109244878A (en) * | 2018-09-29 | 2019-01-18 | 河南亚诺电气设备有限公司 | A kind of lightening arresting method of power transformation box and distribution box with anti-lightning strike function |
| CN115249954A (en) * | 2022-09-21 | 2022-10-28 | 云南高开配电设备有限公司 | Transformer box that possesses lightning protection function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1048781A (en) * | 1990-08-28 | 1991-01-23 | 能源部电力科学技术开发服务中心 | The lightning-protection system of nonmetallic oil tank |
| CN201608424U (en) * | 2009-06-11 | 2010-10-13 | 成都东方瀚易科技发展有限公司 | Enhanced direct stroke protective device |
| CN102437426A (en) * | 2011-10-17 | 2012-05-02 | 李景禄 | Direct lightning stroke protective method of antenna system |
| CN202564903U (en) * | 2012-05-25 | 2012-11-28 | 济南大学 | Lightning protection system of extra-high voltage alternating current double-loop tangent tower |
-
2013
- 2013-01-07 CN CN2013100046123A patent/CN103066401A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048781A (en) * | 1990-08-28 | 1991-01-23 | 能源部电力科学技术开发服务中心 | The lightning-protection system of nonmetallic oil tank |
| CN201608424U (en) * | 2009-06-11 | 2010-10-13 | 成都东方瀚易科技发展有限公司 | Enhanced direct stroke protective device |
| CN102437426A (en) * | 2011-10-17 | 2012-05-02 | 李景禄 | Direct lightning stroke protective method of antenna system |
| CN202564903U (en) * | 2012-05-25 | 2012-11-28 | 济南大学 | Lightning protection system of extra-high voltage alternating current double-loop tangent tower |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538922A (en) * | 2015-01-29 | 2015-04-22 | 中国能源建设集团广东省电力设计研究院有限公司 | Lighting protection method and lighting protection device for convertor station |
| CN105262041A (en) * | 2015-11-03 | 2016-01-20 | 国网山东济南市历城区供电公司 | Lightning arrester in mine field |
| CN109244878A (en) * | 2018-09-29 | 2019-01-18 | 河南亚诺电气设备有限公司 | A kind of lightening arresting method of power transformation box and distribution box with anti-lightning strike function |
| CN111682430A (en) * | 2018-09-29 | 2020-09-18 | 河南亚诺电气设备有限公司 | Transformer box with lightning protection function |
| CN111682429A (en) * | 2018-09-29 | 2020-09-18 | 河南亚诺电气设备有限公司 | Double lightning protection method of transformer box with lightning protection function |
| CN115249954A (en) * | 2022-09-21 | 2022-10-28 | 云南高开配电设备有限公司 | Transformer box that possesses lightning protection function |
| CN115249954B (en) * | 2022-09-21 | 2022-12-30 | 云南高开配电设备有限公司 | Transformer box that possesses lightning protection function |
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Application publication date: 20130424 |