WO2013046939A1 - Installation parafoudre - Google Patents

Installation parafoudre Download PDF

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Publication number
WO2013046939A1
WO2013046939A1 PCT/JP2012/070099 JP2012070099W WO2013046939A1 WO 2013046939 A1 WO2013046939 A1 WO 2013046939A1 JP 2012070099 W JP2012070099 W JP 2012070099W WO 2013046939 A1 WO2013046939 A1 WO 2013046939A1
Authority
WO
WIPO (PCT)
Prior art keywords
lightning protection
needles
charge
reinforcing member
tip
Prior art date
Application number
PCT/JP2012/070099
Other languages
English (en)
Japanese (ja)
Inventor
利徳 深作
Original Assignee
株式会社日立プラントテクノロジー
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社日立プラントテクノロジー filed Critical 株式会社日立プラントテクノロジー
Priority to SG2014010797A priority Critical patent/SG2014010797A/en
Publication of WO2013046939A1 publication Critical patent/WO2013046939A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure

Definitions

  • the present invention relates to a lightning protection device that dissipates ions in the air and relaxes the electric field in the air to protect the structure from lightning strikes, and more particularly to a charge dissipator in the lightning protection device.
  • Conventional charge dissipators include umbrella-type charge dissipators, ball-type charge dissipators, dissipating wires, etc., which use the tip discharge phenomenon, which is a natural phenomenon during lightning strikes, to protect structures, the earth, etc. By dissipating the induced charge and relaxing the electric field, it prevents sudden movement of charge and prevents damage from direct lightning strikes.
  • charge dissipators are composed of thin wire, that is, projecting needles, the environment where the wind receiving area increases due to icing, snowing, etc., or where strong winds are generated When used in the above, there is a problem that the charge dissipator may be damaged by the generation of self-excited vibration.
  • the present invention was created in view of the above-described circumstances, and an object thereof is to provide a lightning protection device capable of preventing damage due to self-excited vibration.
  • the present invention is a structure or a support column standing on the ground, a plurality of conductive needles provided at the tip of the support column and arranged to extend radially, And a reinforcing member that is arranged so as to intersect with the conductive needles and is fixed across the two or more conductive needles.
  • the present invention even when used in an environment where the wind receiving area of a plurality of conductive needles increases due to an icing phenomenon or the like, or even in an environment where strong winds are generated, the conductive needles due to self-excited vibrations. This can contribute to the prevention of stable direct lightning damage.
  • FIG. 6 is a partially broken enlarged view of the nugget and the trumpet tube of FIG. 5 viewed from the X direction.
  • FIG. 1 is a mimetic diagram showing the lightning protection equipment concerning the embodiment of the present invention.
  • a lightning protection apparatus 1 is an apparatus for preventing a lightning strike to a protective structure (for example, a building) S, and includes a plurality of charge dissipators (ion dissipators). , Also referred to as an ionizer) 10, a ground 20, and a conductive wire (for example, a copper stranded wire) 30.
  • the plurality of charge dissipators 10 are erected obliquely upward on the side wall of the protective structure S, and the plurality of projecting needles 12 (see FIG. 2) provided on each of the plurality of charge dissipators 10 are electrically conductive. It is electrically connected to the ground 20 via a line 30.
  • the positive charge accumulated on the ground around the ground 20 moves to the charge dissipator 10 installed in the protective structure S through the conductive wire 30 and is released as positive ions. While the charge dissipator 10 emits positive ions, the electric field in the space around the upper part of the charge dissipator 10 is weakened, so that a space with a relatively strong electric field becomes a lightning path. Therefore, the space around the charge dissipator 10 having a weak electric field is less likely to be a lightning path than before the charge dissipator 10 is installed, and the lightning protection device 1 exhibits a lightning protection effect that makes it difficult to strike lightning.
  • FIG. 2 is a top view of the charge dissipator in the installed state of FIG. 1
  • FIG. 3 is a side view of the charge dissipator in the installed state of FIG.
  • FIG. 4 is a perspective view showing the stopper of FIG.
  • FIG. 5 is a diagram showing a state immediately after the support and the plurality of protruding needles are thermit bonded.
  • FIG. 6 is a partially broken enlarged view of the nugget and the trumpet tube of FIG. 5 viewed from the X direction.
  • FIG. 7 is a diagram illustrating a resin coating region of the charge dissipator, and is a view of the charge dissipator of FIG. 1 as viewed from a direction orthogonal to the axis of the support column.
  • FIG. 8 is a view showing a resin coating region of the charge dissipator, and is a view of the charge dissipator of FIG. 1 as viewed from the front end side of the support column.
  • the charge dissipator 10 is a so-called ball-type charge dissipator, and includes a support column 11, a plurality of protruding needles 12, a plurality of latitude direction reinforcing members 13, and a plurality of meridian direction reinforcements.
  • a member 14 and a plurality of stoppers 15 are provided. In FIG. 2, the plurality of stoppers 15 are omitted.
  • the support column 11 is a rod-shaped member made of metal (for example, SUS steel), and a base end thereof is fixed to the protective structure S by a bracket, a bolt, or the like.
  • the plurality of projecting needles 12 are conductive needle-like objects provided at the tip of the column 11, and are extended radially from the tip of the column 11 so that at least one of the needles 12 faces upward.
  • 32 projecting needles 12 made of SUS steel having a wire diameter of 2.6 mm are radially extended so as to be uniformly distributed in a hemisphere having an outer diameter of 1.2 m centering on the tip of the column 11. ing.
  • the plurality of latitude-direction reinforcing members 13 are metal (for example, SUS steel) conductive members having a ring shape extending in the direction of the latitude of the hemisphere centered on the tip of the support 11, and intersect the projecting needle 12. In place, it is fixed to the needle 12 by a stop 15. In the present embodiment, four latitude direction reinforcing members 13 having different radii are arranged at intervals.
  • the plurality of meridional direction reinforcing members 14 are metal (for example, SUS steel) conductive members having a circular arc shape extending in the meridian direction of the hemisphere centering on the tip of the column 11, and intersect with the projecting needle 12. In place, it is fixed to the needle 12 by a stop 15. In the present embodiment, the two meridian direction reinforcing members 14 are disposed so as to be orthogonal to each other.
  • the plurality of stoppers 15 are fixed to the projecting needle 12 and the latitude direction reinforcing member 13 or the meridian direction reinforcing member 14 (the latitude direction reinforcing member 13 in FIG. 4) and fixed to the projecting needle and reinforcement.
  • This is a conductive cross fastener made of metal (for example, SUS steel) for fixing the members 13 and 14.
  • the charge dissipator 10 further includes a nugget 16 and a trumpet tube 17.
  • the nugget 16 is an enlarged diameter portion formed when the tip of the support 11 and the plurality of protruding needles 12 are joined by thermite welding.
  • the trumpet tube 17 is a metal member (for example, made of copper) that has a cylindrical shape through which the base ends of the plurality of projecting needles 12 are inserted, and the tip end side of the trumpet tube 17 has a tapered shape that increases in diameter toward the tip. .
  • a portion excluding the tips of the plurality of projecting needles 12, a plurality of latitude direction reinforcing members 13, a plurality of meridian direction reinforcing members 14, a plurality of stoppers 15 and a trumpet tube 17 It is covered with a resin film and a water repellent film (resin coating region C in FIGS. 7 and 8).
  • thermite agent containing the powder of copper and tin is heated with explosive Then, the molten metal is melted and poured into the contact portion, and the distal end of the support column 11 and the proximal ends of the plurality of protruding needles 12 are joined by thermite welding.
  • the nugget 16 is formed by such thermite welding.
  • the welded support column 11 and the plurality of projecting needles 12 are taken out of the mold, the plurality of projecting needles 12 are inserted into the trumpet tube 17, and the base end of the trumpet tube 17 and the tip end of the nugget 16 are fixed by bonding or the like. To do.
  • a predetermined number of protruding needles 12 are bent at the proximal end side to open at a predetermined angle, and the weft direction reinforcing member 13 corresponding to the opened protruding needle 12 is moved to a predetermined position.
  • the projecting needle 12 and the latitude direction reinforcing member 13 are fixed by the stopper 15 at the intersection with the projecting needle 12. This operation is repeated for all the projecting needles 12 and the latitude direction reinforcing members 13 in order from the projecting needle 12 having a large bending angle and the latitude direction reinforcing members 13 on the support column 11 side.
  • All the projecting needles 12 are opened and radially extended, and all the latitude direction reinforcing members 13 are caulked and fixed to the projecting needles 12 with stoppers, and then the meridian direction reinforcing members 14 are arranged at predetermined positions.
  • the projecting needle 12 and the meridian direction reinforcing member 14 are fixed by the stopper 15 at the intersection. Such an operation is repeated for all the meridian direction reinforcing members 14.
  • the latitude direction reinforcing member 13 and the meridian direction reinforcing member 14 and the protruding needle 12 are fixed by crossing the protruding needle 12 and the latitude direction reinforcing member 13 (or the meridian direction reinforcing member 14) in the cross direction of the stopper 15 which is a cross stopper.
  • the protruding needle 12 and the reinforcing members 13 and 14 and the stopper 15 are caulked and fixed by being accommodated in the four disposed grooves and caulking the groove of the stopper 15 using a jig (dedicated compressor). It is realized by.
  • the needle 12 and the reinforcing members 13 and 14 are electrically connected to each other with low resistance.
  • the contact resistance of the crimping surface in the caulking is reduced by using the stopper 15 that is a metal cross stopper.
  • the resin paint is poured into the trumpet tube 17, and the portions excluding the tips of the plurality of protruding needles 12, the plurality of latitude direction reinforcing members 13, the plurality of meridian direction reinforcing members 14, the plurality of stoppers 15, and the trumpet tube These are coated with a resin film by applying a resin paint using a brush to 17 (resin coating region in FIGS. 7 and 8).
  • the water-repellent film is formed by applying a water-repellent coating on the resin film using a brush.
  • the wind receiving area of the lightning protection apparatus 1 increases due to an icing phenomenon or the like. Even when used in an environment where high winds are generated, it is possible to prevent damage to the charge dissipator 10 due to self-excited vibration and to contribute to the prevention of stable direct lightning damage. Further, in the lightning protection device 1 according to the embodiment of the present invention, the projecting needle 12 and the reinforcing members 13 and 14 are fixed by caulking using the stopper 15 that is a cross stopper, so that the contact resistance of the crimping surface is reduced. can do.
  • the lightning protection apparatus 1 since the support 11 and the plurality of protruding needles 12 are joined by thermite welding, the plurality of protruding needles 12 can be easily fixed to the support. Moreover, since the lightning protection apparatus 1 which concerns on embodiment of this invention is coat
  • the number of projecting needles 12 and the radial direction are not limited to those described above.
  • 120 projecting needles 12 may be radially extended so as to be uniformly arranged in the entire sphere.
  • any configuration may be used as long as the plurality of projecting needles 12 extend radially in three dimensions.
  • the number of the latitude direction reinforcing members 13 and the meridian direction reinforcing members 14 is not limited to those described above, and the reinforcing members other than the latitude direction reinforcing members 13 and the meridian direction reinforcing members 14 are fixed across the two or more protruding needles 12. It may be configured to. Further, the protrusion 12 and the reinforcing members 13 and 14 may be fixed by a stopper other than the cross stopper, welding, adhesion, or the like.
  • the charge dissipator 10 of the present invention can be installed on the side surface of a steel tower of an umbrella-type charge discharger, the roof of a building, the ground around a small-scale facility, and the like.
  • the reinforcing member is not limited to one made of a conductive material, and the number of protruding needles 12 fixed to each other by one reinforcing member may be two or more.

Abstract

L'invention concerne une installation parafoudre qui permet de prévenir des dommages découlant d'oscillations auto-induites. Le dissipateur de charge (10) de l'installation parafoudre est pourvu : d'une colonne de support (11) disposée debout au niveau d'une structure de protection ; de plusieurs parafoudres (12) installés à la pointe de la colonne de support (11) et disposés de manière à s'étendre radialement ; et d'un élément de renforcement de direction zonale (13) et d'un élément de renforcement de direction méridionale (14) qui sont fixés chevauchant au moins deux parafoudres (12).
PCT/JP2012/070099 2011-09-30 2012-08-07 Installation parafoudre WO2013046939A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG2014010797A SG2014010797A (en) 2011-09-30 2012-08-07 Lightning protection facility

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011218711A JP2013081269A (ja) 2011-09-30 2011-09-30 防雷設備
JP2011-218711 2011-09-30

Publications (1)

Publication Number Publication Date
WO2013046939A1 true WO2013046939A1 (fr) 2013-04-04

Family

ID=47994991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/070099 WO2013046939A1 (fr) 2011-09-30 2012-08-07 Installation parafoudre

Country Status (4)

Country Link
JP (1) JP2013081269A (fr)
CN (1) CN103036190A (fr)
SG (1) SG2014010797A (fr)
WO (1) WO2013046939A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128699A (ja) * 1982-01-28 1983-08-01 中川　秀一 避雷針
JPS62170198A (ja) * 1986-01-21 1987-07-27 大阪避雷針工業株式会社 避雷装置
JPH08330092A (ja) * 1995-03-27 1996-12-13 Com Denshi Kaihatsu Kk 防雷用放散ワイヤ
JPH09320789A (ja) * 1996-05-24 1997-12-12 Com Denshi Kaihatsu Kk 放散アレイ・イオナイザー
JP2001076893A (ja) * 1999-07-08 2001-03-23 Masahiro Igarashi 落雷防止装置
JP2007080703A (ja) * 2005-09-15 2007-03-29 Sankosha Corp 避雷針装置
WO2008038349A1 (fr) * 2006-09-27 2008-04-03 Hitachi Plant Technologies, Ltd. collecteur de poussière électrique, électrode de décharge, procédé de fabrication de l'électrode de décharge, ET PROCÉDÉ DE FABRICATION D'aiguille de décharge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2129481Y (zh) * 1992-04-15 1993-04-07 马平 同步感应消雷器
CN2171164Y (zh) * 1993-10-26 1994-07-06 薛东华 辐射型消雷器
JP3169081U (ja) * 2011-02-25 2011-07-14 株式会社日立プラントテクノロジー 雷対策施設

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128699A (ja) * 1982-01-28 1983-08-01 中川　秀一 避雷針
JPS62170198A (ja) * 1986-01-21 1987-07-27 大阪避雷針工業株式会社 避雷装置
JPH08330092A (ja) * 1995-03-27 1996-12-13 Com Denshi Kaihatsu Kk 防雷用放散ワイヤ
JPH09320789A (ja) * 1996-05-24 1997-12-12 Com Denshi Kaihatsu Kk 放散アレイ・イオナイザー
JP2001076893A (ja) * 1999-07-08 2001-03-23 Masahiro Igarashi 落雷防止装置
JP2007080703A (ja) * 2005-09-15 2007-03-29 Sankosha Corp 避雷針装置
WO2008038349A1 (fr) * 2006-09-27 2008-04-03 Hitachi Plant Technologies, Ltd. collecteur de poussière électrique, électrode de décharge, procédé de fabrication de l'électrode de décharge, ET PROCÉDÉ DE FABRICATION D'aiguille de décharge

Also Published As

Publication number Publication date
CN103036190A (zh) 2013-04-10
SG2014010797A (en) 2014-04-28
JP2013081269A (ja) 2013-05-02

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