CN209249719U - Reverse valve control resistance grounding-for-lightning device - Google Patents
Reverse valve control resistance grounding-for-lightning device Download PDFInfo
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- CN209249719U CN209249719U CN201821783889.5U CN201821783889U CN209249719U CN 209249719 U CN209249719 U CN 209249719U CN 201821783889 U CN201821783889 U CN 201821783889U CN 209249719 U CN209249719 U CN 209249719U
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- steel tower
- lightning
- valve control
- reverse valve
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Abstract
The utility model discloses a kind of reverse valve control resistance grounding-for-lightning devices, belong to electrical network anti-thunder technical field." series connection " accesses novel reverse valve control resistance grounding-for-lightning device between steel tower ground line, when electrically charged cloud layer is when steel tower moves about, the earth and cloud layer form electric field between pole plate, charge need to pass through the ground line of steel tower to movement at the top of steel tower, and novel reverse valve control resistance grounding-for-lightning device series connection is wherein, surface charge is from ground to tower top accumulation in the effect for inhibiting current limliting over the ground, and ground surface charge group quilt " barrier " is in steel tower root, to weaken electric field formation and intensity.When thunder and lightning hits steel tower, reverse valve control resistance is in open state, the top-down aerial drainage to the ground of charge in " channel ".Reverse valve control resistance grounding-for-lightning device be exactly charge moving direction from ground to tower top movement be in restriction state, be struck by lightning steel tower by tower top to the ground aerial drainage when the effect in open state.
Description
Technical field
The utility model relates to a kind of reverse valve control resistance grounding-for-lightning devices, belong to electrical network anti-thunder technical field.
Background technique
Thunder and lightning is a kind of natural phenomena, and atmosphere or cloud mass in atmosphere occurs and generates the charges of different polarity under airflow function
Accumulation keep somewhere air breakdown, charging neutrality generates the concurrent a kind of physical phenomenon of strong sound, light, electricity, general to generate
In cloud layer to the electric discharge phenomena between the earth, between cloud layer and cloud layer, inside cloud layer.The process of this electric discharge can generate strong
Lightning and the huge sound will cause tremendous influence or even bring and huge play damage to human production life facility.
Electric power transmission line is often in certain height, by taking 110kV as an example: considering safe distance, the maximum of road pavement
Arc sag, insulator chain suspension height, tower top lightning conducter, height of the iron tower of power transmission line more than ground are at least 7+6+0.7+2
=15.7 meters.Steel tower and transmission line of electricity become " skyscraper ", and the risk for facing high-altitude lightning stroke is higher.
Positive and negative charge is dispersed in cloud layer.General cloud layer top is based on positive charge, and lower part is based on negative electrical charge to shape
At thundercloud.Between cloud layer after electrically charged accumulation to a certain extent, electric discharge will be generated, is divided between cloud according to discharge characteristics and being dodged
And Ground flash.Ground flash energy is huge among these, and ground is because of the electrostatic induction by thundercloud near the ground, can also take and cloud
The charge of bottom contrary sign, the two are equivalent to a huge capacitor.According to electric field strength formula: point chargeWhen
When atmosphere cloud layer is considered as charge, theoretically it is considered as vertical electric field.R be considered as charge apart from ground it is vertical away from
From when the more short then electric field strength of distance is bigger, when cloud layer carried charge is bigger, due to steel tower cumulatively surface charge and transmission channel
Effect makes r value (i.e. the distance of electromagnetic field between cloud layer) is opposite to reduce, and the electric field strength the big more is easy to happen and puts to steel tower and ground
Electricity.Steel tower oneself height and the effect that cumulatively surface charge channel is collected make the formation of thundercloud electric field and powerful increase.
In order to reduce thundercloud electric field formation and and formed electromagnetic field intensity weakened, consider by reduce r
Value reaches the target of setting.
It needs to install a kind of device additional in steel tower root, work purpose is to reduce ground surface charge to pass through steel tower tower body channel to tower
Top accumulation, the opposite physical distance holding on atmosphere cloud layer and ground do not change, are not converged by steel tower tower body channel, make electromagnetic field
Distance r value reduces, and enhances electromagnetic field intensity.Ground surface charge is prevented to weaken in steel tower root since steel tower oneself height is formed
The lesser strong electrical field of electric field distance r value.Occur to reduce the Ground flash between steel tower and cloud layer.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of reverse valve control resistance grounding-for-lightning devices.
The purpose of this utility model is achieved through the following technical solutions:
Reverse valve control resistance grounding-for-lightning device, which includes hollow coil (1), discharge tube (2), graphite ground terminal
(3), insulating sheath (4), steel tower ground wire connecting pin (5), epoxy pouring sealant (6) and stainless steel casing (7)；
The hollow coil (1) and discharge tube (2) are in parallel；
Described hollow coil (2) one end is connect with steel tower ground wire connecting pin (5), and the other end is connect with graphite ground terminal (3)；
Meanwhile the graphite ground terminal (3) and ground connection tandem row connect；Wherein, the portion of graphite ground terminal (3) and ground connection tandem row's connection
Exceptionally cover insulating sheath (4)；
Be equipped with stainless steel casing (7) outside the hollow coil (1) and discharge tube (2), and the stainless steel casing (7) with
Hollow coil (1) and discharge tube (2) have connection；
Be equipped with epoxy pouring sealant (6) inside the stainless steel casing (7), for hollow coil (1) and discharge tube (2) into
Row protection.
Further, the hollow coil (1) is helically arranged.
Further, steel tower ground wire connecting pin (5) are set there are two hole, for connecting steel tower ground wire.
Further, the stainless steel casing (7) is interior empty cuboid, and is respectively equipped with a hole there are two opposite, is used
In across graphite ground terminal (3) and steel tower ground wire connecting pin (5).
The beneficial effects of the utility model are: the utility model be set to steel tower ground connection breaking of contact position or grounding body with
Downlead enters the place on ground, and limitation charge realizes really " lightning-arrest quickly to aggregation at the top of steel tower.When realizing high frequency lightning stroke
To ground leakage current, power-frequency earthing protection, lightning channel inhibits charge to assemble to tower top before being formed, thus reduce steel tower by thunder
The number hit realizes the lightning strike protection to steel tower.
Other advantages, target and feature of the utility model will be explained in the following description to a certain extent
It states, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or
Person can be instructed from the practice of the utility model.The target of the utility model and other advantages can be said by following
Bright book and claims are achieved and obtained.
Detailed description of the invention
It is practical to this below in conjunction with attached drawing in order to keep the purpose of this utility model, technical solution and advantage clearer
It is novel to be described in further detail, in which:
Fig. 1 is that electromagnetic field forms schematic diagram；
Fig. 2 is that the present apparatus inhibits electromagnetic field functional schematic；
Fig. 3 is present apparatus structural schematic diagram.
Appended drawing reference: 1- hollow coil, 2- discharge tube, 3- graphite ground terminal, 4- insulating sheath, the connection of 5- steel tower ground wire
End, 6- oxygen casting glue, 7- stainless steel casing.
Specific embodiment
Hereinafter reference will be made to the drawings, and the preferred embodiment of the utility model is described in detail.It should be appreciated that preferably real
Example is applied only for illustrating the utility model, rather than in order to limit the protection scope of the utility model.
As shown in Figure 1, the positive charge and negative electrical charge of usually interior of articles are equal, so whole do not show that electrification is existing
As when the positive and negative charge possessed by the jobbie is unequal, this object just shows the characteristic of electrification, when interior of articles
Positive charge is more than negative electrical charge, and object is positively charged, otherwise negatively charged.Since charge has the characteristic that there is a natural attraction between the sexes, identical charges repel each other, institute
Mutually exclusive electric field force effect is always subjected to the homophilic charge in charged object.By taking the metal ball with sharp cutting edge of a knife or a sword as an example, if
Negative electricity (can also similarly explain and become positively charged) on metal ball band, due to the charge effect that identical charges repel each other, electronics is always distributed to
The outermost surface of metal ball, and have the tendency that " fleeing from " metal ball surface.The electronics of ball point cutting edge of a knife or a sword part is by homophilic charge
Repulsive force is most strong outward, therefore is easiest to be ostracised and leaves metal ball, and here it is " point discharges " usually said.Furthermore when electrification object
Air around body is moister or when with ion with electrical body opposite charges, and electrical body also gets over Yi Fang electricity.
When there is thundercloud on the same day in the air, because thundercloud has a large amount of charges, since electrostatic induction acts on, the ground below thundercloud
Object on face and ground all takes the charge opposite with thundercloud.Thundercloud just becomes the electricity to have charged with ground below
Container, on ground object (steel tower top etc.) outstanding can a large amount of charges of rapid aggregation, meanwhile, the thundercloud of sky electrification is in electric field
Under the action of, the cloud particle (or water is at object) of minority electrification is also drawn close to the ground, and drawing close for these a small number of charged particles is called pioneer
Beam is called electric current guide.The continuity of pioneer's beam will form the faint conducting of ionization, this stage is known as pioneer's electric discharge.
It is discontinuous for starting the pioneer generated electric discharge, is advancing in succession for pulse one by one, development is averaged
Speed is 105~106m/s, about 30~90us of each pulse spacing, and per stage promotes about 50m.Pioneer's electric discharge often appears as branch
Shape, this is because electric discharge is that path most strong along air ionization, being easiest to conduction is developed.These branched pioneer's electric discharges
Usually only one electric discharge branch reaches the earth.The earth is reached when pioneer discharges into, or is put with the protrusion object (steel tower etc.) of the earth
After electricity head-on merges, main discharge phase is begun to, here it is lightning strokes.
, can be there are two types of approach in order to carry out lightning protection to building or structures, one is for setting up lightning rod, by thunder and lightning
Flow to end it is early introduce the earth, avoid destroying to needing building and structures to be protected to generate lightning stroke；Second is that limitation charge is being built
Object and the aggregation of structures (steel tower) top, to realize really " lightning-arrest ", limitation charge is quickly assembled to steel tower top, in iron
Tower ground connection breaking of contact position or grounding body and downlead enter the valve-type resistance that the place setting on ground inhibits lightning channel to be formed, such as
Shown in Fig. 2.
In order to realize real " lightning-arrest ", limitation charge is grounded breaking of contact position in steel tower quickly to aggregation at the top of steel tower
Or grounding body and downlead enter the valve-type resistance that the place setting on ground inhibits lightning channel to be formed.
The valve-type resistance that the lightning channel processed is formed is by high frequency lightning stroke conductive member (valve) and charge is inhibited quickly to gather upwards
Collect component to constitute.To ground leakage current when realizing high frequency lightning stroke, power-frequency earthing is protected, and lightning channel inhibits charge to tower before being formed
Top aggregation realizes the lightning strike protection to steel tower to reduce the number of steel tower being struck by lightning.
The device design principle is: steel tower is to be grounded to connect with the grounding body of big underground by steel tower, and steel tower sheet
Body and steel tower ground line and the earth just form one " channel ".Surface charge movement is open to the outside world over the ground in this channel.This work
Principle: " series connection " accesses novel reverse valve control resistance grounding-for-lightning device between steel tower ground line, when electrically charged cloud layer is in iron
When tower moves about, the earth and cloud layer form electric field between pole plate, charge to movement at the top of steel tower need to by the ground line of steel tower, and
Wherein, surface charge is from ground to tower top accumulation in inhibition current limliting over the ground for novel reverse valve control resistance grounding-for-lightning device series connection
Effect, ground surface charge group by " barrier " in steel tower root, thus weaken electric field formation and intensity.When thunder and lightning hits steel tower
When, reverse valve control resistance is in open state, the top-down aerial drainage to the ground of charge in " channel ".
It is in limiting shape that reverse valve control resistance grounding-for-lightning device, which is exactly charge moving direction from ground to tower top movement,
State, lightning stroke steel tower by tower top to the ground aerial drainage when the effect in open state
As shown in figure 3, being reverse valve control resistance grounding-for-lightning device, which includes hollow coil 1, discharge tube 2, graphite
Ground terminal 3, insulating sheath 4, steel tower ground wire connecting pin 5, epoxy pouring sealant 6 and stainless steel casing 7；
The hollow coil 1 and discharge tube 2 are in parallel；
Described 2 one end of hollow coil is connect with steel tower ground wire connecting pin 5, and the other end is connect with graphite ground terminal 3；Meanwhile
The graphite ground terminal 3 is connected with ground connection tandem row；Wherein, graphite ground terminal 3 and the part housing of ground connection tandem row's connection are exhausted
Edge sheath 4；
Stainless steel casing 7, and the stainless steel casing 7 and hollow coil are equipped with outside the hollow coil 1 and discharge tube 2
1 and discharge tube 2 have connection；Stainless steel casing 7 is used as grounding body, plays the role of reducing ground resistance and leakage current.
Epoxy pouring sealant 6 is equipped with inside the stainless steel casing 7, for protecting to hollow coil 1 and discharge tube 2.
The hollow coil 1 is helically arranged.
Steel tower ground wire connecting pin 5 is set there are two hole, for connecting steel tower ground wire.
The stainless steel casing 7 is interior empty cuboid, and is respectively equipped with a hole there are two opposite, for across graphite
Ground terminal 3 and steel tower ground wire connecting pin 5.
The present apparatus is by stainless steel casing, graphite ground terminal, insulating sheath, epoxy pouring sealant, hollow coil, discharge tube group
At.
Hollow coil and discharge tube are in parallel, and due to the characteristic of thunder and lightning, when being struck by lightning, lightning current is released by discharge tube.
Discharge tube is off-state before not breakdown, and air core coil has the ability for preventing electric current suddenly change, and thunder and lightning lotus is in sky
Between when quickly being formed, air core coil starting inhibits ground surface charge quickly to form the effect moved up, while discharge tube is also at
Off-state, to reach the effect for inhibiting charge to assemble to tower top.The formation of lightning channel is reduced, reduces what steel tower was struck by lightning
Number realizes the protection to steel tower.
Present apparatus installation steps:
(1) the original grounding connection band iron in steel tower bottom is cut-off.
(2) it is excavated in four legs of steel tower by radioactivity, 60 centimeters of cutting depth, wide 50 centimeters of ground connection ditch is 4-5 meters long.
(3) novel reverse valve control grounding body is installed, novel reverse valve control resistance is connected with the basic ground line of steel tower column foot
It connects, ground connection graphite body is then embedded in the earth of excavation.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, should all without departing from the objective and range of the technical program
Cover in the scope of the claims of the utility model.
Claims (4)
1. reverse valve control resistance grounding-for-lightning device, it is characterised in that: the device includes hollow coil (1), discharge tube (2), stone
Black ground terminal (3), insulating sheath (4), steel tower ground wire connecting pin (5), epoxy pouring sealant (6) and stainless steel casing (7)；
The hollow coil (1) and discharge tube (2) are in parallel；
Described hollow coil (1) one end is connect with steel tower ground wire connecting pin (5), and the other end is connect with graphite ground terminal (3)；Together
When, the graphite ground terminal (3) and ground connection tandem row connect；Wherein, the part of graphite ground terminal (3) and ground connection tandem row's connection
Cover insulation sheath (4)；
Stainless steel casing (7) are equipped with outside the hollow coil (1) and discharge tube (2), and the stainless steel casing (7) and hollow
Coil (1) and discharge tube (2) have connection；
Epoxy pouring sealant (6) are equipped with inside the stainless steel casing (7), for protecting to hollow coil (1) and discharge tube (2)
Shield.
2. reverse valve control resistance grounding-for-lightning device according to claim 1, it is characterised in that: the hollow coil (1)
Helically arrange.
3. reverse valve control resistance grounding-for-lightning device according to claim 1, it is characterised in that: the steel tower ground wire connection
Holding (5) to set, there are two holes, for connecting steel tower ground wire.
4. reverse valve control resistance grounding-for-lightning device according to claim 1, it is characterised in that: the stainless steel casing
(7) it is interior empty cuboid, and is respectively equipped with a hole there are two opposite, for across graphite ground terminal (3) and steel tower ground wire
Connecting pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783889.5U CN209249719U (en) | 2018-10-31 | 2018-10-31 | Reverse valve control resistance grounding-for-lightning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783889.5U CN209249719U (en) | 2018-10-31 | 2018-10-31 | Reverse valve control resistance grounding-for-lightning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209249719U true CN209249719U (en) | 2019-08-13 |
Family
ID=67526633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821783889.5U Active CN209249719U (en) | 2018-10-31 | 2018-10-31 | Reverse valve control resistance grounding-for-lightning device |
Country Status (1)
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| CN (1) | CN209249719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336179A (en) * | 2021-12-31 | 2022-04-12 | 国网河南省电力公司周口供电公司 | Novel lightning-stroke-prevention broken line protection device for shielding, insulating and isolating 10kV overhead insulated line |
-
2018
- 2018-10-31 CN CN201821783889.5U patent/CN209249719U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336179A (en) * | 2021-12-31 | 2022-04-12 | 国网河南省电力公司周口供电公司 | Novel lightning-stroke-prevention broken line protection device for shielding, insulating and isolating 10kV overhead insulated line |
| CN114336179B (en) * | 2021-12-31 | 2023-11-21 | 国网河南省电力公司周口供电公司 | Lightning-proof broken line protection device for shielding, insulating and isolating 10kV overhead insulated line |
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