CN206585081U - A kind of iron tower of power transmission line earthing or grounding means - Google Patents

A kind of iron tower of power transmission line earthing or grounding means Download PDF

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Publication number
CN206585081U
CN206585081U CN201720161590.5U CN201720161590U CN206585081U CN 206585081 U CN206585081 U CN 206585081U CN 201720161590 U CN201720161590 U CN 201720161590U CN 206585081 U CN206585081 U CN 206585081U
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China
Prior art keywords
connector
transmission line
ring
grounding means
power transmission
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CN201720161590.5U
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Chinese (zh)
Inventor
薛尚青
王旭明
赵金飞
郭志彬
翁兰溪
林波
李宏进
黄耀
韩军科
杨大淼
廖宝文
陈德泉
程希
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Economic and Technological Research Institute of State Grid Fujian Electric Power Co Ltd
PowerChina Fujian Electric Power Engineering Co Ltd
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Economic and Technological Research Institute of State Grid Fujian Electric Power Co Ltd
Fujian Electric Power Survey and Design Institute
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI, Economic and Technological Research Institute of State Grid Fujian Electric Power Co Ltd, Fujian Electric Power Survey and Design Institute filed Critical State Grid Corp of China SGCC
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Abstract

The utility model discloses a kind of iron tower of power transmission line earthing or grounding means, including multiple first connectors and the second connector, multiple end to end composition Q-RINGs of first connector, the second connector is connected at the corner of Q-RING, the reverse extending line of the second connector at corner in the Q-RING intersects at the geometric center of Q-RING, and the first connector and the second connector are alumetized steel.The utility model decay resistance is strong, reasonable in design, and structural strength is high, and service life is long;Easy to process, production cost is low, easy construction;The resistance to thunder level of transmission line of electricity can be effectively improved, transmission line lightning stroke trip-out rate is reduced, it is ensured that the safe operation of power system.

Description

A kind of iron tower of power transmission line earthing or grounding means
Technical field
The utility model is related to technical field of power systems, and in particular to a kind of iron tower of power transmission line earthing or grounding means.
Background technology
Operation of Electric Systems experience have shown that, most of transmission line of electricity accidents are all due to that transmission line of lightning strike or shaft tower cause Caused by tripping operation.To improve the resistance to thunder level of transmission line of electricity, safe operation of the transmission line lightning stroke trip-out rate to power system is reduced, Ultra-high-tension power transmission line needs to bury earthing or grounding means around pole and tower foundation, for being struck by lightning or occurred system short-circuit in circuit therefore During barrier, to the earth catharsis electric current, protection circuit body and people around, thing safety.But with continuing to develop for industry, environmental pollution Problem is increasingly severe, and rugged environment accelerates the corrosion of earthing or grounding means, causes the decline of its service life, intensity decreases.For Strengthen in the corrosion resistance of earthing or grounding means, existing project of transmitting and converting electricity and main early stage protecting hand is generally used as using galvanizing by dipping Section, using cold-applied zinc or brushing anticorrosive paint as later maintenance means, Hot Galvanizing Technology can obtain thicker with relatively low cost Coating, the thickness of coating, toughness, surface state can be controlled very well.However, at present in actual motion, environmental corrosion is not Disconnected aggravation causes traditional galvanizing technique can not meet electric power pylon earthing or grounding means dirty in extreme marine atmosphere area and heavy industry Service life in dye area requires, so as to effectively can not prevent transmission line of electricity from tripping, influences the safe operation of power system.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of iron tower of power transmission line earthing or grounding means, decay resistance By force, structural strength is high, it is easy to process.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows:
A kind of iron tower of power transmission line earthing or grounding means, including multiple first connectors and the second connector, multiple described first The second connector is connected at the end to end composition Q-RING of connector, the corner of the Q-RING, in described square The reverse extending line of the second connector at the corner of ring intersects at the geometric center of the Q-RING, first connector and Second connector is alumetized steel.
The alumetized steel is respectively from inside to outside steel layer, ferroalloy parts and aluminum layer, and contained aluminium is dense in the steel layer Degree<The concentration of aluminium contained by ferroalloy parts<The concentration of aluminium contained by aluminum layer.
The aluminum layer thickness is 30-40 μm, and the ferroalloy parts thickness is 30-100 μm.
First connector and the second connector are round steel.
Multiple first connectors constitute the Q-RING by the way that welding manner is end to end.
The second connector is respectively welded at the corner of the Q-RING.
The Q-RING is square loop.
The utility model has the advantages that:Decay resistance is strong, reasonable in design, and structural strength is high, uses Long lifespan;Easy to process, production cost is low, easy construction;The resistance to thunder level of transmission line of electricity can be effectively improved, transmission line of electricity is reduced Tripping rate with lightning strike, it is ensured that the safe operation of power system.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure:1st, the first connector, the 2, second connector.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art The utility model may be better understood and can be practiced, but illustrated embodiment is limited not as to of the present utility model.
As shown in figure 1, a kind of iron tower of power transmission line earthing or grounding means, including four the first connectors 1 and four second connections Second connector is connected at part 2, four end to end composition Q-RINGs of the first connector 1, the corner of Q-RING 2, the reverse extending line of each the second connector 2 at the corner in Q-RING intersects at the geometric center of Q-RING, square The geometric center of ring is cornerwise intersection point of Q-RING, i.e., O points shown in Fig. 1.
Second connector 2 is set at the corner of Q-RING, and the second connector 2 is located at the outside of Q-RING, and each the The reverse extending line of two connectors 2 intersects at the geometric center of Q-RING so that the second connector 2 is radial, so increases The net sectional area of the earthing or grounding means of the present invention, consequently reduces contact resistance, improves the effect of lightning protection and catharsis electric current Rate.
First connector 1 and the second connector 2 are alumetized steel.Alumetized steel is formed by alumetizing process, with preferably resistance to Corrosivity, and with preferable mechanical property and higher surface quality, protection transmission of electricity iron can be very good using alumetized steel The mechanical property of tower earthing or grounding means, improves its service life.
Wherein, alumetized steel is respectively from inside to outside steel layer, ferroalloy parts and aluminum layer, and contained aluminium is dense in alumetized steel Degree is gradually incremented by from inside to outside, the concentration of contained aluminium in steel layer<The concentration of aluminium contained by ferroalloy parts<Aluminium contained by aluminum layer it is dense Degree.
Further, aluminum layer thickness is 30-40 μm, and the ferroalloy parts thickness is 30-100 μm, so that alumetized steel With more preferable decay resistance, and ensure that alumetized steel has preferable comprehensive mechanical property.
Further, the first connector 1 and the second connector 2 are round steel.
Further, four the first connectors 1 pass through the end to end composition Q-RING of welding manner.At the corner of Q-RING It is respectively welded second connector 2.Material therefor is welded for A312SL aluminisings welding rod special for special or A102 stainless steel electrodes, A312SL aluminising aluminium welding rod special for special or A102 stainless steel electrodes are used to weld the steel surface aluminising such as Q235,20G and Cr5Mo portion Part, can also make the welding of dissimilar steel, the deposited metal of A312SL aluminising welding rod special for special have with alumetized steel match it is corrosion-resistant Property and high temperature oxidation resistance, but market be difficult buying.The welding performance of A102 stainless steel electrodes is higher than base metal of carbon steel, its deposition gold Accessory has good mechanical property, resistance to intergranular corrosion and high temperature oxidation resistance, there is excellent welding technological properties and anti-gas Pore performance, its mechanical performance and physical characteristic can meet stock construction requirement.Using A312SL aluminisings welding rod special for special or A102 stainless steel electrodes, its welding effect is good, can effectively protect the aluminising face of alumetized steel, so as to ensure that it has well resistance to Corrosive nature.It is contemplated that market purchasing difficulty, can select A102 stainless steel electrodes.
In welding, core diameter is selected according to thickness of workpiece:In Ban Hou≤4mm, selection core diameter is 2.5mm, In 4mm≤Ban Hou≤12mm, selection core diameter is 3.2mm, in thickness of slab ﹥ 12mm, and selection core diameter is 4mm.
In welding, the relation of welding current and core diameter is:When core diameter is 2mm, it is with reference to welding current 25~50A, is 50~80A with reference to welding current when core diameter is 2.5mm, when core diameter is 3.2mm, reference Welding current is 80~110A, is 110~160A with reference to welding current when core diameter is 4mm.
Welding rod should baked and banked up with earth 1 hour before in 200-250 DEG C of drying baker;Impurity should be removed before welding, is used as far as possible DC welder, small current welding;
Level weld seam requirement is smooth during welding, must not there is the weld defects such as stomata slag inclusion, it is found that defect is repaired in time;Weld bead height Typically close with steel plate, during using discontinuous welding, uniformity is answered at fusion length and interval;
Require that weld bead height can not be less than mother metal during welding(Wlding)Thickness;The mother metal of different-thickness(Wlding)In welding When, weld bead height can not be less than most thin mother metal(Weldment)Thickness;
Should be adopted an effective measure during welding prevents welding slag splashes from damaging material surface, and such as aluminising steel surface uses manual arc During weldering, gear tool is made using thin plate, prevents splash from polluting steel surface;
After the completion of welding, coating is knocked out again after needing to wait for cooling, so can both be protected weld seam, can also be protected and ooze Aluminium lamination.
When welding rod is welded, a small amount of diffusion occurs in aluminium lamination around weld seam, need to be repaired, according to material thickness not Together, solder joint backing material aluminium lamination can also spread when being welded compared with thin pieces, also need to repair, general to use paint or aluminium spray according to reality Situation repair process:
During using paint processing, need first simply to polish to processing surface, remove surface, then sealed with anti-corrosive primer Hole, finally sprays silvery white finish paint.When handling using aluminium spray, also need first simply to polish to surface, remove surface, aluminium spray Agent need to be in two times to repairing at problem(Repair time interval 5 minutes twice), in particular cases, to add one layer of spraying absolutely Edge is painted.
Further, Q-RING is square loop, is more conducive to electric current to catharsis around the earth, strong applicability.
The iron tower of power transmission line earthing or grounding means of the present embodiment, easy processing simple in construction, structural strength is high, with preferably anti- Corrosive nature, mechanical property is good, and service life is long, can adapt to rugged environment, effectively prevents transmission line of electricity from tripping, and improves defeated The resistance to thunder level of electric line, reduces transmission line lightning stroke trip-out rate, it is ensured that the safe operation of power system.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.

Claims (7)

1. a kind of iron tower of power transmission line earthing or grounding means, it is characterized in that, including multiple first connectors and the second connector, Duo Gesuo State and be connected to the second connector at the end to end composition Q-RING of the first connector, the corner of the Q-RING, in institute The reverse extending line for stating the second connector at the corner of Q-RING intersects at the geometric center of the Q-RING, and described first connects Fitting and the second connector are alumetized steel.
2. iron tower of power transmission line earthing or grounding means as claimed in claim 1, it is characterized in that, the alumetized steel is respectively from inside to outside The concentration of contained aluminium in steel layer, ferroalloy parts and aluminum layer, the steel layer<The concentration of aluminium contained by ferroalloy parts<Aluminum layer The concentration of contained aluminium.
3. iron tower of power transmission line earthing or grounding means as claimed in claim 2, it is characterized in that, the aluminum layer thickness is 30-40 μm, The ferroalloy parts thickness is 30-100 μm.
4. iron tower of power transmission line earthing or grounding means as claimed in claim 1, it is characterized in that, first connector and the second connection Part is round steel.
5. iron tower of power transmission line earthing or grounding means as claimed in claim 1, it is characterized in that, multiple first connectors pass through weldering Connect the end to end composition Q-RING of mode.
6. iron tower of power transmission line earthing or grounding means as claimed in claim 1, it is characterized in that, welded respectively at the corner of the Q-RING It is connected to the second connector.
7. iron tower of power transmission line earthing or grounding means as claimed in claim 1, it is characterized in that, the Q-RING is square loop.
CN201720161590.5U 2017-02-22 2017-02-22 A kind of iron tower of power transmission line earthing or grounding means Active CN206585081U (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720161590.5U CN206585081U (en) 2017-02-22 2017-02-22 A kind of iron tower of power transmission line earthing or grounding means

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110416750A (en) * 2019-09-12 2019-11-05 南安市信隆智能家居有限公司 A kind of automation transmission facility

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110416750A (en) * 2019-09-12 2019-11-05 南安市信隆智能家居有限公司 A kind of automation transmission facility
CN110416750B (en) * 2019-09-12 2020-10-30 泉州市早稻梦想文化发展有限公司 Automatic change transmission of electricity equipment

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Address after: 350000, 1 floor, Yili name garden, 221 Xiufeng Road, Jinan District, Fuzhou, Fujian.

Co-patentee after: China Electric Power Research Institute

Patentee after: Economic technology academy of State Grid Fujian Electric Power Co., Ltd.

Co-patentee after: China Electric Power Construction Group Fujian electric survey and Design Institute Co., Ltd.

Co-patentee after: State Grid Corporation of China

Address before: 350000, 1 floor, Yili name garden, 221 Xiufeng Road, Jinan District, Fuzhou, Fujian.

Co-patentee before: China Electric Power Research Institute

Patentee before: Economic technology academy of State Grid Fujian Electric Power Co., Ltd.

Co-patentee before: Fujian Electric Power Survey and Design Institute

Co-patentee before: State Grid Corporation of China

CP01 Change in the name or title of a patent holder