CN1048781A - The lightning-protection system of nonmetallic oil tank - Google Patents
The lightning-protection system of nonmetallic oil tank Download PDFInfo
- Publication number
- CN1048781A CN1048781A CN 90107214 CN90107214A CN1048781A CN 1048781 A CN1048781 A CN 1048781A CN 90107214 CN90107214 CN 90107214 CN 90107214 A CN90107214 A CN 90107214A CN 1048781 A CN1048781 A CN 1048781A
- Authority
- CN
- China
- Prior art keywords
- lightning
- protection system
- radome
- oil tank
- 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.)
- Withdrawn
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Details Of Aerials (AREA)
Abstract
The present invention is a kind of lightning-protection system of nonmetallic oil tank.The electric integrated shocking preventing technology of multiple shield that this system is made up of lightning conduction, radome and enclosed type electromagnetic screen lee-side.Native system can the nonmetallic oil tank tank deck and near run into thunderbolt or when static is arranged, have shunting, all press, shielding and ground connection acts on, thereby greatly reduce the damage to crops caused by thunder accident, guaranteed the safety of oil tank.The native system lightning protection effect is good, and is expensive low, simple.
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 earth electrode effect concurrently.When thunderbolt, lightning conduction 1 is underground the rapid importing of lightning current 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, the metal guard above the oil tank 7, and the cover of guard is along the earth electrode 6 that is connected with cover, and earth electrode 6 is imbedded underground.When meeting thunderbolt, can be underground by the earth electrode 6 of cover edge and cover 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 the explosion-proof conducting material to fill the reinforcing bar gap and the slit of 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 electric conducting 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 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 wire 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, as square, rectangle and circle etc.
Embodiment one:
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 (slit, the tank deck that comprises tank deck armored concrete joint gives the slit of making sheet and tank skin lap-joint and give the slit of making between arch bar and the crossbeam etc.) 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 place's vertical junction terrain (1 1/2 inches steel pipes of long 2.5 meters) ground connection better.The supporting steel pipe of net is used 2 35 square millimeters steel strand reinforced, steel wire lower end to be connected to 2.5 meters long 1 1/2 inches steel pipes again and is imbedded undergroundly, also can play the ground connection effect and strengthen shielding action.
Present embodiment is at the reinforcing bar that also adds a φ 6 in the making sheet slit that gives on oil tank top, and then the injection 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 effectively prevent the damage to crops caused by thunder accident. 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 simulated 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 lightning-protection system simple, with low cost.
Claims (9)
1, a kind of lightning-protection system of nonmetallic oil tank, it is characterized in that this system is made up of lightning conduction 1, radome 2 and enclosed type electromagnetic screen lee-side 3, lightning conduction 1 is the wire netting of frame in radome 2 tops, there is steel pipe 5 to support, steel pipe 5 lower ends are inserted underground, radome 2 be positioned at below the lightning conduction 1, the cover of the metal guard above the oil tank 7, guard is along being connected to buried earth electrode 6, enclosed type electromagnetic screen lee-side 3 is to be positioned at radome 2, the electric integrated conducting surface of being made up of the reinforcing bar of tank deck and tank skin.
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 true CN1048781A (en) | 1991-01-23 |
| CN1016041B 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) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011032240A1 (en) * | 2009-09-16 | 2011-03-24 | VM LEON ENGENHARIA E CONSTRçÔES LTDA | System for protecting high vertical structures against direct and indirect atmospheric discharges |
| 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 |
| 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 |
-
1990
- 1990-08-28 CN CN 90107214 patent/CN1016041B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011032240A1 (en) * | 2009-09-16 | 2011-03-24 | VM LEON ENGENHARIA E CONSTRçÔES LTDA | System for protecting high vertical structures against direct and indirect atmospheric discharges |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1016041B (en) | 1992-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201498612U (en) | Earthing device for reducing earth resistance of power transmission line by utilizing tower foundation | |
| CN204156112U (en) | A kind of grounding system | |
| CN103457044A (en) | Grounding device of 10kV power distribution network overhead line tower pole and laying method of grounding device | |
| CN1048781A (en) | The lightning-protection system of nonmetallic 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 | |
| CN106972473A (en) | A kind of lightening arresting method of rocket movable launch platform | |
| CN103928900B (en) | Lightning conducter lightning protection electric eliminating holds grounding device | |
| Dodd et al. | How to protect a wind turbine from lightning | |
| CN201994434U (en) | Metal formwork earthing device | |
| CN205790429U (en) | Lightning protection grounding component | |
| CN209168778U (en) | A kind of flexible shielding line | |
| 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 | |
| CN204857984U (en) | Outdoor light of TD -LTE network hands over equipment lightning protection ground system's earth mat | |
| CN202662825U (en) | Lightning-proof grounding net of nuclear power station | |
| CN209056767U (en) | Lightning arrester | |
| CN110470912A (en) | A kind of lightning protection, ground connection shield integrated wave environments monitoring tower | |
| CN211744012U (en) | Lightning protection net for building equipment | |
| CN220604434U (en) | Zinc oxide lightning arrester | |
| 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 |