CN202121207U - Lightening protection device - Google Patents
Lightening protection device Download PDFInfo
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- CN202121207U CN202121207U CN 201120194051 CN201120194051U CN202121207U CN 202121207 U CN202121207 U CN 202121207U CN 201120194051 CN201120194051 CN 201120194051 CN 201120194051 U CN201120194051 U CN 201120194051U CN 202121207 U CN202121207 U CN 202121207U
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Abstract
The utility model provides a lightening protection device, by which the setting cost and construction time for forming a needed lightening strike protection area are reduced. The lightening protection device is provided with lightening rod complexes facing towards the sky on the roof of a multi-storey building, at least the roof angle portions, and the lightening rod complexes are grounded to the ground at the periphery of the building through grounding leads, wherein each of the lightening rod complexes is composed of a ball portion, a conductor shaft supporting the ball portion and a pedestal connected with the lower end of the conductor shaft, the ball portion is radially provided with multiple lightening rods which are articles made of a conductive material, elongated, protruding towards the sky, and iron wire-shaped. The lightening protection device is suitable for efficiently radiating ions from a specific position.
Description
Technical field
The utility model relates to shape from the ion emitter in aerial electric field exempts from thunderbolt with the protection building the lightning protection to aerial radiation ion that relax and the set-up mode on building.
Background technology
Because charged thundercloud is approaching, between thundercloud and ground, forms electric field, if this electric field strength improves gradually, then finally causes the destruction of air insulation, between thundercloud and the earth, causes discharge.Here it is thunderbolt.Knownly to protect the building or its periphery that exempt from thunderbolt that the ion emitter is set, relax the overhead electric field of building to postpone the lightning protection of thunderbolt generation through ion to sky radiation and thundercloud bottom opposite polarity.
In the past, as patent documentation 1 or patent documentation 2 are put down in writing, in this ion emitter, use with short conductivity wire rod at certain intervals with long other conductivity wire rod through incorporate lines such as welding (below be called the ion radioactive ray).Above-mentioned ion radioactive ray are arranged on the roof that will protect the building that exempts from thunderbolt; Erect pillar; Topmost at above-mentioned pillar is provided with conductor plate; Be covered with above-mentioned ion radioactive ray with umbrella and cover the roof of above-mentioned building from above-mentioned conductor plate, and the terminal ground connection through will these above-mentioned ion radioactive ray with earth lead, constitute the lightning protection that the above-mentioned building of protection exempts from thunderbolt.
[patent documentation 1] japanese kokai publication sho 53-39450 communique
No. 5043527 specifications of [patent documentation 2] United States Patent (USP)
The thunder protection of [non-patent literature 1] A 4201:2003 of Japanese Industrial Standards building etc.
11 years national congress of electric association collections of thesis are put down in the gas current evaluation (one of which) of flat his the radioactive ray lightning-protection system of the wild light in [non-patent literature 2] shallow lake overgrown with wild plants
The utility model content
In the method in the past on the top that covers building with the ion radioactive ray, though it is obvious to relax the effect of thunderbolt, aspect cost, the utilization aspect also has problems.Hang up the tower of ion radioactive ray or, compare the problem that exists cost to increase considerably being provided on the building roof with for example lightning rod from 4 introducings that equipment such as ion radioactive ray are hanged up on the limit of this tower on the building roof.In addition, because hang up the space that the ion radioactive ray on the roof of building have limited the roof, so also there is the problem that gets into the operation on roof in order to manage building that limited.
The utility model is made in order to solve the problem that exists in the above-mentioned prior art.
The lightning protection of scheme 2 is characterized in that, in the lightning protection of scheme 1, above-mentioned building roof is a quadrangle, and above-mentioned prominent pin aggregate is configured in the Si Jiaochu on the roof of above-mentioned building.
The lightning protection of scheme 3; It is characterized in that; In the lightning protection of scheme 2, above-mentioned prominent pin aggregate is equal or longer than this distance to the distance of the mid point of the straight line that is connected two bights on the building roof with the bight from the building foot that joins with ground apart from the height on ground topmost.
The lightning protection of scheme 4 is characterized in that, in the lightning protection of scheme 1, above-mentioned prominent pin aggregate is electrically connected through lead.
The lightning protection of scheme 5 is characterized in that, in the lightning protection of scheme 1, above-mentioned ground connection is electrically connected through earth lead.
The lightning protection of scheme 6 is characterized in that, in the lightning protection of scheme 1, the height of above-mentioned building is more than the 8m, below the 120m
In the ion emitter, do not use ion radioactive ray in the past at the utility model; And use conduct as shown in Figure 2 to dispose the ion emitter of the prominent pin aggregate of a plurality of prominent pins radially, above-mentioned prominent pin by conductive material form, elongated and be object to aerial outstanding such wire-like.In addition, should constitute lightning protection by prominent pin aggregate through on four angles on building roof, being provided with 4 respectively.Ion is from the radiation of the leading section of the above-mentioned prominent pin of conductivity, and leading section quantity the polyion exit dose is big more more.Even 1 prominent pin aggregate is also because the quantity of above-mentioned prominent pin front end is many, so be applicable to the purposes of radiating ion from specific position expeditiously.
The shape of most of building is a cuboid.If on the building of this shape, have charged thundercloud in vain, then the electric charge opposite with thundercloud is provided from ground to the face of the building relative with this thundercloud, make it charged.The electric charge issued state on the ground of the thundercloud when Figure 10 representes the thunder generation, the bight of building and building periphery.General known thundercloud 5 on ground one side electronegative, at an overhead side positively charged.The lower part that Figure 10 is illustrated in thundercloud 5 is furnished with the state of negative electrical charge 7.Through above-mentioned negative electrical charge 7 formed electric fields, positive charge 8 guiding is distributed to the surface on the ground 6 under the thundercloud 5.Above-mentioned positive charge 8 also appears in the roof being positioned at the above-mentioned building 2 under the above-mentioned thundercloud 5.Known, generally be to increase by the distribution of the dielectric surface electric charge of electric field polarization than the charge density of the outstanding part of periphery than periphery, on the contrary, reducing than the part of periphery depression charge density than periphery.Because being counted as the summit, bight on roof of the above-mentioned building 2 of cuboid is the part of giving prominence to, so shown in figure 10, be in following state of charge: charge density is the highest near the summit, along with charge density descends gradually away from the summit gradually.In addition, on the contrary, because the part depression that building 2 sides and ground 6 intersects, so that charge density becomes is minimum, it is sparse that CHARGE DISTRIBUTION becomes.
It is CHARGE DISTRIBUTION state, power line and the equipotential plane that the mode in front is seen thundercloud, building and the building surrounding ground of building that Figure 11 is illustrated among Figure 10 with horizontal direction and side ABFE qualitatively.Because the width of above-mentioned thundercloud 5 and from the bottom of above-mentioned thundercloud 5 to ground 6 distance is several km; So as illustrated in fig. 11; Thundercloud 5 bottoms can be regarded electronegative plane as; Because compare with the width of building 2 enough broad, so think that the space that clipped by thundercloud 5 and ground 66 is formed with the uniform negative electric field towards vertical direction to thundercloud 5 bottoms from ground except building 2 peripheries.The electric field of building 2 peripheries is by the CHARGE DISTRIBUTION state decision on the ground 6 of upper surface, side and building 2 peripheries of building 2.Therefore, near the electric field grow the outstanding part, near the electric field the part of depression dies down.Thus, building 2 bights and other parts of building possibility of comparing thunderbolt is higher.Therefore, then maximum if above-mentioned prominent pin aggregate 1 is arranged on the bight because the electric field alleviation effects of position is set, so can expect high lightning protection effect, can expect the maximum effect of above-mentioned prominent pin aggregate 1 performance with minority.
Figure 12 be illustrated in qualitatively the protective device that is provided with the utility model the cuboid building on when having thundercloud in vain, be that the mode in front is seen thundercloud, the building of building and is distributed in electric charge on the building surrounding ground, the electric charge that discharges from protective device, also has power line and equipotential plane with horizontal direction and side ABFE.The negative electric field that is produced by thundercloud 5 is very high at the prominent pin leading section of prominent pin aggregate 1, and atmospheric ionization produces the cation 20 of positive ionization and discharges to overhead (direction 21 of Figure 12).Above-mentioned prominent pin aggregate 1 is electrically connected through the ground 6 of ground connection 4 with building 2 peripheries because 6 positive charge 8 is provided from ground, so last have thundercloud 5 in vain and form negative electric field during, from the lasting release of prominent pin cation 20.It is generally acknowledged that the ground positive charge 8 that is collected at above-mentioned ground connection 4 peripheries moves to the above-mentioned prominent pin aggregate 1 that is set to building 2 bights through earth connection 3, and discharge as above-mentioned cation 20.Above-mentioned prominent pin aggregate 1 discharge cation 20 during, the electric field in the upper periphery space of above-mentioned prominent pin aggregate 1 is weakened.Relatively the space of electric-field strength becomes the path of thunder.Therefore, and compare before above-mentioned prominent pin aggregate 1 is provided with, the space of above-mentioned prominent pin aggregate 1 periphery that electric field is weak is difficult to become the path of thunder.Performance just is difficult to the lightning-arrest effect of thunderbolt.
In addition, above-mentioned prominent pin aggregate 1 is because disperse ion and do not have directive property to the four directions in the horizontal direction, thus as shown in Figure 2, the zone of protection 14 of thunder is become with from face being set to the distance of the ion emitter front end hemispheric zone as radius.Cover building as long as set this hemispheric zone of protection for.Through the pin aggregate ground connection of will dashing forward of 4 bights on the roof of building, the protection zone is overlapping, can protect the integral body of building.
On the building of rectangular shape with respect to the method for on the building roof, hanging up the ion radioactive ray; Because as long as the ion emitter of ball-type is arranged on 4 angular positions on the roof, thus have the thunderbolt protection zone that is used to form needs cost is set, advantage that the time of constructing is few.In addition, the thunderbolt protective device does not take the roof, and the degree of freedom of application facet is also high.
Description of drawings
Fig. 1 is that the expression pin aggregate of will dashing forward is arranged on the figure of lightning protection of the utility model in the bight, roof of building.
Fig. 2 is outward appearance and the figure of protection zone of the prominent pin aggregate of presentation graphs 1.
Fig. 3 is will the dash forward figure of the protection zone of pin aggregate 4 foundation when being arranged on 4 jiaos on the top of cuboid building of expression.
Fig. 4 is from laterally seeing the figure of Fig. 3.
Fig. 5 is the figure that sees Fig. 3 from above.
Fig. 6 is the figure of the prominent pin aggregate of expression apart from the definition of the height on ground.
Fig. 7 bottom of prominent pin aggregate that to be expression will be arranged on the bight, roof of building with lead connects into the figure of the lightning protection of closed circuit state respectively.
Fig. 8 implements ground connection respectively separately to the prominent pin aggregate in the bight, roof that is arranged on building, and then ground connection is separately connected into the figure of the lightning protection of closed circuit state with lead.
Fig. 9 is illustrated in than on the wide building of Fig. 1, and the figure of the example of prominent pin aggregate also is set near therebetween except 4 jiaos.
Figure 10 is the figure of the CHARGE DISTRIBUTION state of the building upper corners part when representing to have thundercloud in vain qualitatively.
Figure 11 is illustrated in (ion) distribution of electric charge in the state of Figure 10 and the figure of equipotential line qualitatively.
Figure 12 be illustrated in qualitatively the protective device that is provided with the utility model the cuboid building on CHARGE DISTRIBUTION and the figure of the electric charge, power line and the equipotential plane that discharge from protective device when having thundercloud in vain.
Figure 13 is the figure of the hemispheric spherical ion generator of expression.
Description of reference numerals
1: prominent pin aggregate; 2: building; 3: earth lead; 4: ground connection; 5: thundercloud; 6: ground; 7: negative electrical charge; 8: positive charge; 9: power line; 10: equipotential plane; 11: prominent pin; 12: the conductor axle; 13: pedestal; 14: the protection zone; 15: the protection zone radius; 16: cornerwise length of building; 17: cornerwise 1/2 length of building; 20: cation; 21: the direction that discharges cation; 30: lead
Embodiment
Fig. 1 representes and representational embodiment is described.More large-scale building 2 as the objective for implementation of the utility model can be regarded the tectosome of being made up of one or more cuboid as.In Fig. 1, building 2 is expressed as the simplest cuboid.Via the conductor axle 12 of conductivity the prominent pin aggregate 1 of ion emitter that the prominent pin aggregate of prominent pin 11 is disposed in conduct shown in Figure 2 radially is set respectively in 4 corner parts on above-mentioned building 2 roofs.Extend above-mentioned earth connection 3 from above-mentioned each conductor axle 12 on the face of land along the wall of above-mentioned building 2, carry out ground connection 4 at 6 places, ground of above-mentioned building 2 peripheries.For collection of ions everywhere from the earth of building 2 periphery, as illustrated in fig. 1 earthing position is arranged on 4 positions, perhaps be arranged on 2 positions at diagonal angle at least.
And the building of supposing to be provided with the thunder protective device of the utility model is 2 layers and above building.Because the height of each layer generally is more than 4.0 meters, the height gage of 2 one storey buildings is decided to be more than 8.0 meters at least.In addition, because general becoming along with the increase of depth of building is struck by lightning easily, so the height of the building of the thunder protection effect of performance the utility model has the upper limit, this upper limit is 120m.This is because for example can know according to non-patent literature 1; The thunder of lightning rod protection effect is defined as the building of height up to 60m when being provided with; If the technology of the ion generator of the utility model sampling non-patent literature 2 then have the effect that the electric field strength that it is overhead reduces by half is so think that about 2 times the 120m of height when lightning rod of building can bring into play the cause of same thunder protection effect.
Fig. 2 representes prominent pin aggregate 1.Prominent pin aggregate 1 integral body is made up of the electrical conductivity material; Comprise the ball portion that the prominent pin 11 that is configured to radial wire-like by conductivity forms, conductor axle 12 and the pedestal 13 that supports above-mentioned prominent pin ball portion; The lower end of above-mentioned conductor axle 12 is connected with pedestal 13, and said base 13 is arranged on the roof surface of above-mentioned building 2.The earth lead 3 that is connected with said base 13 carries out ground connection 4 on the ground 6 of above-mentioned building 2 peripheries.The example of prominent pin aggregate material if give an example, then prominent pin 11 is SUS316, conductor axle and pedestal are SUS304.As shown in Figure 2, the protection zone 14 that this prominent pin aggregate 1 forms is by being the scope that the hemisphere of radius covers from the ground 6 of carrying out above-mentioned ground connection 4 to the height of the topmost of above-mentioned prominent pin 11.Fig. 2 is illustrated in the situation that pedestal 13 directly is set on the ground 6.As an example of prominent pin aggregate, the shape that the ball portion of prominent pin aggregate is arranged is spherical spherical ion generator.Shown in figure 13, the shape in the bulb of spherical ion generator is not only sphere, also can be hemisphere.
The birds-eye view of the protection zone state of Fig. 3 presentation graphs 1.In Fig. 3, for the symbol (H in the drawings do not show) of summit mark from A to H in each bight.Fig. 4 is the scope of the above-mentioned protection zone 14 of the direction of ABFE from the side when seeing Fig. 3.Fig. 5 is the scope of the above-mentioned protection zone 14 when top face ABCD direction is seen Fig. 3.And, in Fig. 3,4 and 5, omitted above-mentioned earth lead 3 and above-mentioned ground connection 4.In Fig. 3,4 and 5, above-mentioned protection zone 14 needs the front end height of the above-mentioned prominent pin aggregate 1 of decision in order to cover above-mentioned building 2 as Fig. 6 of later explanation.As shown in Figure 5, the mid point P of the straight line of the summit A in the bight of the above-mentioned building 2 of decision binding and the summit C in bight.The length that will equate with the distance of the straight line PF that links up summit, the bight F bottom of above-mentioned mid point P and building 2 as illustrated in fig. 6 then, perhaps surpasses above-mentioned distance is as protection zone radius 15.If with above-mentioned protection zone radius 15 as from ground to the height of prominent pin aggregate front end, it is all then can to cover building.This above-mentioned protection zone radius 15 is because added the height of above-mentioned prominent pin aggregate, so realize through the height of adjusting above-mentioned conductor axle 12 and said base 13 on the height of above-mentioned building 2.
Fig. 7 connects to ground connection 4 is extended, carried out on the ground 6 of above-mentioned building 2 peripheries to closed circuit state, the wall of above-mentioned earth lead 3 from above-mentioned each conductor axle 12 along above-mentioned building 2 on the face of land situation with the bottom of above-mentioned conductor axle 12 of above-mentioned prominent pin aggregate 1 that lead 30 will be arranged on the bight, roof of above-mentioned building 2.In this case; Though it is inhomogeneous that above-mentioned prominent pin aggregate 1 carries out the CHARGE DISTRIBUTION of ground 6 periphery of ground connection 4 respectively; But current potential becomes identical through connecting to closed circuit state, so the electric charge supply to each prominent pin aggregate 1 is equated, can make the function-stable of prominent pin aggregate 1.
Fig. 8 is the situation that will connect to closed circuit state with lead 30 to the ground connection 4 on the ground 6 of above-mentioned building 2 peripheries separately.Even the CHARGE DISTRIBUTION of ground 6 peripheries is inhomogeneous in this case, through ground connection 4 is connected to closed circuit state separately, current potential also becomes identical, can make to supply with equal to the electric charge of each prominent pin aggregate 1.In Fig. 7, Fig. 8; Be used to make the lead 30 of ground connection 4 idiostaticization at prominent pin aggregate 1 or 4 positions at 4 positions to connect into closed circuit state with surrounding each 4 positions; Even but this certain closed circuit one side lead disappearance; 4 positions also still are electrically connected, for idiostatic, so also can be the method that connects any 3 limits.
Fig. 9 is that the long limit on the roof of building 2 is the situation more than 2 times of minor face; Prominent pin aggregate 1 is set in each bight of building 2; And then the intermediate point on the long limit of building is provided with prominent pin aggregate 1; Connect each prominent pin aggregate 1 with lead 30, carry out ground connection 4 with ground 6 with above-mentioned earth lead 3.Under the situation of the example of this Fig. 9, if with the method definition protection zone radius of Fig. 6 definition, then compare with the height of building, the conductor axle 12 of prominent pin aggregate 1 becomes very long, sometimes constructional difficulties.Therefore also be provided with prominent pin aggregate 1 at intermediate point.
Because charged thundercloud is approaching, between thundercloud and ground, forms electric field,, can cause that then discharge is a thunderbolt if final air insulation destroys.In order to protect building to exempt from thunderbolt, be called the ion emitter of ion radioactive ray through setting, relax the overhead electric field of building postponing the method that thunderbolt takes place to the ion of sky radiation and thundercloud bottom opposite polarity, but have the problem of cost rising.Because hang over the space that the ion radioactive ray on the building roof have limited the roof, so also there is the situation that gets into the operation on roof in order to manage building that limited.Construct the bight, roof at least that will be configured in the roof of multi-story structure respectively, and will above-mentioned prominent pin aggregate be grounding to the lightning protection of the peripheral the earth of above-mentioned building towards the prominent pin aggregate that constitutes by conductive material that the pillar of sky is supported.
Claims (6)
1. lightning protection is characterized in that:
This lightning protection disposes prominent pin aggregate towards sky respectively in angle of a roof portion at least on the roof of multi-story structure; Above-mentioned prominent pin aggregate is grounding on the ground of above-mentioned building periphery through earth lead respectively; Wherein, Said prominent pin aggregate is made up of ball portion, the conductor axle that supports above-mentioned ball portion and the pedestal that is connected with the lower end of above-mentioned conductor axle; Wherein ball portion disposes a plurality of prominent pins radially, and this prominent pin is the elongated object to aerial outstanding wiriness that the material by conductivity constitutes.
2. lightning protection according to claim 1 is characterized in that,
Above-mentioned building roof is a quadrangle, and above-mentioned prominent pin aggregate is configured in the Si Jiaochu on the roof of above-mentioned building.
3. lightning protection according to claim 2 is characterized in that,
Above-mentioned prominent pin aggregate is equal or longer than this distance to the distance of the mid point of the straight line that is connected two bights on the building roof with the bight from the building foot that joins with ground apart from the height on ground topmost.
4. lightning protection according to claim 1 is characterized in that,
Above-mentioned prominent pin aggregate is electrically connected through lead.
5. lightning protection according to claim 1 is characterized in that,
Above-mentioned ground connection is electrically connected through earth lead.
6. lightning protection according to claim 1 is characterized in that,
The height of above-mentioned building is more than the 8m, below the 120m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-001032 | 2011-01-20 | ||
| JP2011001032U JP3169081U (en) | 2011-02-25 | 2011-02-25 | Lightning countermeasure facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121207U true CN202121207U (en) | 2012-01-18 |
Family
ID=45462244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120194051 Expired - Fee Related CN202121207U (en) | 2011-02-25 | 2011-06-10 | Lightening protection device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3169081U (en) |
| CN (1) | CN202121207U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013081269A (en) * | 2011-09-30 | 2013-05-02 | Hitachi Plant Technologies Ltd | Lightning protection equipment |
-
2011
- 2011-02-25 JP JP2011001032U patent/JP3169081U/en not_active Expired - Fee Related
- 2011-06-10 CN CN 201120194051 patent/CN202121207U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3169081U (en) | 2011-07-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HITACHI,LTD. Free format text: FORMER OWNER: HITACHI PLANT TECHNOLOGIES LTD. Effective date: 20140306 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140306 Address after: Tokyo, Japan Patentee after: Hitachi Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Plant Technologies Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20160610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |