CN1016041B - Thunder protection system for non-metallic oil tank - Google Patents
Thunder protection system for non-metallic oil tankInfo
- Publication number
- CN1016041B CN1016041B CN 90107214 CN90107214A CN1016041B CN 1016041 B CN1016041 B CN 1016041B CN 90107214 CN90107214 CN 90107214 CN 90107214 A CN90107214 A CN 90107214A CN 1016041 B CN1016041 B CN 1016041B
- Authority
- CN
- China
- Prior art keywords
- lightning
- protection system
- oil tank
- radome
- conduction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Images
Landscapes
- Details Of Aerials (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a non-metallic lightningproof oil tank system which is composed of a lightningproof net, a shielding cover and a closed electromagnetic shielding surface and is a lightningproof technology of multiple shield and electrical integration. When the top of a non-metallic oil tank and the vicinity thereof encounter lightning strokes or have static electricity, the system has the functions of shunting, voltage sharing, shielding and grounding; thereby, lightning disturbance accidents are greatly reduced, and the security of the oil tank is ensured. The system has the advantages of favorable lightningproof effect, low cost consumption and simple operation.
Description
The present invention relates to lightning-protection system, is a kind of lightning-protection system that is applied to nonmetallic oil tank specifically.
The iundustrial oil (comprising crude oil, oil, gasoline etc.) of oil depot storage at present major part is to adopt metallic oil tank, and one of its advantage is to reduce the damage to crops caused by thunder accident, because metal can is equivalent to the electric conductor of an integral body, it can promptly arrive the lightning current earial drainage underground.But also have the nonmetallic oil tank of some to store iundustrial oil at present, as nonmetallic oil tank armored concrete, stone material reinforced concrete reinforced structure, brick reinforcing bar reinforced structure.Just there is the oil tank of more than 1,000 this class formation in China.They mainly take lightning rod and 6 * 6(rice) device that combines of the gauze screen of mesh comes lightning protection.This device can not effectively be avoided the explosion accident that gap discharge caused below 100 millimeters on the oil tank.So the damage to crops caused by thunder accident takes place in this class oil depot again and again at present.If replace nonmetallic oil tank with metal can, though lightning protection effectively, metal can involves great expense, and improvement project is great, change more than 1000 nonmetallic oil tank, costs and will reach 1,000,000,000 yuan.
The lightning-protection system that the purpose of this invention is to provide a kind of simple, with low cost nonmetallic oil tank.
The present invention adopts the electric integrated system of multiple shield to realize lightning protection.It is made up of lightning conduction, radome and enclosed type electromagnetic screen lee-side.They run into when thunderbolt at oil tank, have shunting, all press, shielding and ground connection effect, thereby protected the safety of oil tank, adopt native system can reduce the incidence of damage to crops caused by thunder accident greatly, so that make the most existing nonmetallic oil tank can continue use.
Fig. 1 is the schematic diagram of lightning protection system of the present invention.
Fig. 2 is the vertical view of lightning protection system of the present invention.
By Fig. 1 and Fig. 2 as seen, lightning-protection system of the present invention mainly contains lightning conduction 1, radome 2 and enclosed type electromagnetic screen lee-side 3 and forms. Lightning conduction 1 is the wire netting of frame above radome 2, supports with steel pipe 5, and steel pipe 5 is imbedded under ground portion and had the grounding body effect concurrently. When thunderbolt, lightning conduction 1 imports lightning current rapidly underground by the ground connection of steel pipe 5 and each node. So lightning conduction 1 has shielding, shunting and ground connection effect. Radome 2 is to be positioned at below the lightning conduction 1, metal net mask above the oil tank 7, the cover of guard is along the grounding body 6 that is connected with cover, that grounding body 6 is imbedded is underground, when meeting thunderbolt, grounding body 6 by cover edge and cover can be underground the rapid introducing of induction lightening, so radome 2 also has the effect of shielding, shunting and ground connection. Enclosed type electromagnetic screen lee-side 3 is the oil tank ground planes that are positioned at radome 2. It is a conducting surface that reinforcing bar is electric integrated, can be underground lightning current and the rapid importing of static, and shielding action is arranged, avoid the danger of tank fire blast. For general oil tank, can adopt reinforcing bar gap and the slit of explosion-proof conducting Material Filling tank deck and tank skin, make it tank deck and tank skin is electric integrated. Oil tank for those reinforcing bar slits have been sealed by non-conducting material can't inject conductive material, then can be at the topped one deck reinforcing bar of tank deck (electric integrated) concrete shield face, and electric integrated to realize oil tank.
The size of lightning conduction 1 and radome 2 is determined according to the oil tank size. Generally, radome 2 every limits are than 1 meter of every hem width of oil tank, radome 2 and 1～1.5 meter of oil tank distance, and the distance of each valve opening is 0.2～0.5 meter on the tank deck, the mesh of cover is 0.25 * 0.25～1 * 1 meter). Lightning conduction 1 every limit is than 5 meters of radome 2 every hem widths, and the distance of the sag minimum point of net 1 and cover 2 tops is more than or equal to 4 meters, long and wide to the steel strand wires number respectively more than or equal 6 and 4, mesh spaces is 10～20 meters * 6～15 meters. The shape of radome 2 is decided by the shape of oil tank 7, such as square, rectangle and circle shape etc.
Embodiment 1:
Having one, to be embedded in underground volume be 70 * 50 * 10(rice) the armored concrete petroleum tank (its height is 10 meters, is embedded in undergroundly fully, and as shown in Figure 1), the tank deck of oil tank is exposed on the ground, and breather valve, gauge hatch, thief hole and flange thereof etc. are arranged on the tank deck.Earlier the reinforcing bar gap of oil tank and other all slits (comprising the slit of slit, tank deck prefabricated board and tank skin lap-joint of tank deck armored concrete joint and the slit between prefabricated arch bar and the crossbeam etc.) are filled with explosion-proof conducting gel.Explosion-proof conducting gel has good penetrability, sealing, characteristics such as conduct electricity very well, thereby can realize electric connection to gap and slit effectively.Again the earth connection of valve opening of tank deck etc., flange jumper, node etc. are located to coat explosion proof and electric conducting binder, to realize electric connection.By above-mentioned electric connection everywhere, make oil tank reach electric integrated.One radome is set above oil tank again, and this cover is usefulness 30 * 4(millimeter) the net formed of zinc-coated flat steel sheet, mesh is 0.5 * 0.5(rice), guard is of a size of 72 * 52 * 2.1(rice), in whole oil tank covered on, guard imbed native interior 0.6 meter dark.Lower edge along guard is uniform-distribution with 8 earth electrodes, and earth electrode is 2.5 meters long 1 1/2 inches a steel pipe, and this earth electrode not only can reduce the contact resistance of guard, and the effect of strengthening electromagnetic shielding is arranged.
Also establish a lightning conduction above radome, the middle sag minimum point of this net is higher than 5 meters of radomes, and lightning conduction is to form with 35 square millimeters steel strand wire, and its size is 82 * 62(rice), corresponding steel strand wire number is 7 and 5 (see figure 2)s.This net supports with 42 1/2 inches steel pipe, imbeds underground 2.5 meters.Each node around the net is respectively established 1 1/2 inches steel pipes of long 2.5 meters of a vertical junction terrain 8(of place) ground connection better.The supporting steel pipe of net is reinforced with 2 35 square millimeters steel strand wire 4 again, and steel wire 4 lower ends are connected to 2.5 meters long 1 1/2 inches steel pipes and imbed undergroundly, also can play ground connection effect and reinforcement shielding action.
Present embodiment also adds the reinforcing bar of a Φ 6 in the prefabricated board slit on oil tank top, and then injects explosion-proof conducting gel, and this has implemented electric connection.The anastomose point of this external radome connects with bolt, coats explosion proof and electric conducting binder again.
Embodiment two:
Other conditions of present embodiment and facility be with embodiment 1, is that 0.25 * 0.25 meter, thickness are 50 millimeters explosion-proof conducting concrete at topped one deck Φ 8 reinforcing bars of tank deck, mesh just, and its effect is with embodiment one.
As seen from above-mentioned, lightning-protection system of the present invention can run into thunderstorm hour at oil tank, can prevent the damage to crops caused by thunder accident effectively.Because the present invention adopts explosion-proof conducting gel to have sealing, can avoid the leakage of oil gas and crude oil again, can prevent the fire that naked light causes, also favorable environment protection.Lightning-protection system of the present invention proves that through the lightning current analogue test lightning protection effect is obvious.It is original 1/5th that the damage to crops caused by thunder accident can reduce to, and expensive be 1/10th of cylinder of steel.So the present invention is a lightning-protection system simple, with low cost.
Claims (9)
1, a kind of lightning-protection system of nonmetallic oil tank, comprise lightning conduction 1, it is characterized in that there is radome 2 lightning conduction 1 below, lightning conduction 1 is supported by steel pipe 5, steel pipe 5 lower ends are inserted underground, and radome 2 is to be positioned at lightning conduction 1 following, the metal guard above the oil tank 7, and the cover of guard is along being connected to buried earth electrode 6, one enclosed type electromagnetic screen lee-side 3 is arranged, the electric integrated conducting surface that electromagnetic screen lee-side 3 is made up of the reinforcing bar of tank deck and tank skin in radome 2.
2, lightning-protection system as claimed in claim 1 is characterized in that lightning conduction 1 is crossed as net by steel strand wire, and mesh spaces is 10～20 * 6～15(rice).
3, lightning-protection system as claimed in claim 1 is characterized in that the sag minimum point of lightning conduction 1 and the top distance of radome 2 are equal to or greater than 4 meters.
4, lightning-protection system as claimed in claim 1 is characterized in that the supporting steel pipe of lightning conduction 1 has 4, and every supporting steel pipe has 2 steel strand wire that are used to reinforce usefulness.
5, lightning-protection system as claimed in claim 1 is characterized in that each node around the lightning conduction 1 is respectively established place's vertical junction terrain 8.
6, lightning-protection system as claimed in claim 1 is characterized in that radome 2 forms the point of contact bolt of net by zinc-coated flat steel sheet.
7, lightning-protection system as claimed in claim 1, the cover that it is characterized in that radome 2 is along the steel pipe earth electrode 6 that evenly distributes more than 4 or 4.
8, lightning-protection system as claimed in claim 1 is characterized in that radome 2 and oil tank apex distance from more than or equal to 1～1.5 meter, with the valve opening distance be 0.2～0.5 meter.
9, lightning-protection system as claimed in claim 1 is characterized in that the explosion-proof conducting material is explosion-proof conducting gel, explosion proof and electric conducting binder and explosion-proof conducting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107214 CN1016041B (en) | 1990-08-28 | 1990-08-28 | Thunder protection system for non-metallic oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107214 CN1016041B (en) | 1990-08-28 | 1990-08-28 | Thunder protection system for non-metallic oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048781A CN1048781A (en) | 1991-01-23 |
| CN1016041B true CN1016041B (en) | 1992-03-25 |
Family
ID=4880443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107214 Expired CN1016041B (en) | 1990-08-28 | 1990-08-28 | Thunder protection system for non-metallic oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1016041B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0903547A2 (en) * | 2009-09-16 | 2011-05-24 | Vm Leon Engenharia E Construcoes Ltda | direct and indirect lightning protection system for raised vertical structures |
| CN103066401A (en) * | 2013-01-07 | 2013-04-24 | 李景禄 | Direct lightning protection and ground connection method in inflammable and explosive places |
| CN106193198A (en) * | 2016-08-31 | 2016-12-07 | 安徽亿纵电子科技有限公司 | A kind of safe early warning lightning protection winterization system of water tank |
| CN108928575A (en) * | 2017-05-24 | 2018-12-04 | 中国石油化工股份有限公司 | It is a kind of with connect dodge bar and metal roof External floating roof tank |
| CN108928576A (en) * | 2017-05-24 | 2018-12-04 | 中国石油化工股份有限公司 | It is a kind of with connect dodge band and metal roof External floating roof tank |
| CN111682430B (en) * | 2018-09-29 | 2021-12-28 | 武汉蓝硕智能电气设备有限公司 | Transformer box with lightning protection function |
-
1990
- 1990-08-28 CN CN 90107214 patent/CN1016041B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048781A (en) | 1991-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204156112U (en) | A kind of grounding system | |
| CN1016041B (en) | Thunder protection system for non-metallic oil tank | |
| KR20120133766A (en) | Method for installing overhead earth wire which severs as distribution line by earthing every utility pole | |
| CN206313414U (en) | Power transmission line wind side spin tower based on flexible composite | |
| CN205092323U (en) | Lump formula earthing device , power station ground system | |
| CN103928900B (en) | Lightning conducter lightning protection electric eliminating holds grounding device | |
| Dodd et al. | How to protect a wind turbine from lightning | |
| CN105186147A (en) | Lumped grounding device, power station grounding system and construction method | |
| CN201994434U (en) | Metal formwork earthing device | |
| CN202866322U (en) | Underground upper cover property complex grounding system | |
| CN206076745U (en) | A kind of distributed board outdoor | |
| CN205790429U (en) | Lightning protection grounding component | |
| CN209168778U (en) | A kind of flexible shielding line | |
| CN204885829U (en) | Outdoor equipment completely cuts off formula lightning protection device | |
| CN209981724U (en) | Lightning arrester for power equipment | |
| CN207947390U (en) | A kind of Phase of Electric Power Projects grounding body | |
| CN2796160Y (en) | Overvoltage protective earthing device for insulation conductor deep leading into earth | |
| CN1855634A (en) | Overvoltage protecting ground device with insulative wire leading underground deeply | |
| CN202662825U (en) | Lightning-proof grounding net of nuclear power station | |
| CN209056767U (en) | Lightning arrester | |
| CN205543275U (en) | Tower grounding device based on three -dimensional equalizer ring | |
| CN220604434U (en) | Zinc oxide lightning arrester | |
| CN206003982U (en) | A kind of improvement down conductor | |
| KR200253293Y1 (en) | Copper Pipe with Holes for Grounding | |
| CN208209029U (en) | Photovoltaic plant earthed system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |