CN112186699A - Superconducting lightning protection structure and assembling method thereof - Google Patents
Superconducting lightning protection structure and assembling method thereof Download PDFInfo
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- CN112186699A CN112186699A CN202010905150.2A CN202010905150A CN112186699A CN 112186699 A CN112186699 A CN 112186699A CN 202010905150 A CN202010905150 A CN 202010905150A CN 112186699 A CN112186699 A CN 112186699A
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- lightning protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/20—Active discharge triggering
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention discloses a superconductive lightning protection structure and an assembly method thereof, relating to the technical field of superconductive lightning protection structures; in order to improve the assembly effect; the protection structure specifically comprises a down lead fixed on a tower through a fixed angle steel and a hoop, the hoop is fixed on the circumferential outer wall of the tower through bolts after being sleeved, the outer wall of one side of the fixed angle steel is fixed on the outer wall of one side of the hoop through bolts, one end of the down lead is provided with a terminal shell, the outer wall of the terminal shell is connected with a terminal base in a sliding mode through an annular bulge, a terminal head is integrally arranged at the top end of the terminal base, and the outer wall of one side of the terminal head is tangent to the; the outer wall of one side of the terminal head is provided with an assembling hole and a waist-shaped hole, and the terminal head is installed on the outer wall of one side of the fixed angle steel through the assembling hole, the waist-shaped hole and the two fastening bolts. According to the invention, the outer wall of one side of the terminal head is tangent to the circumferential outer wall of the terminal base, so that the deformation of the terminal head can be reduced in the installation process, and the phenomenon of bending and breaking between the terminal head and the terminal base is avoided.
Description
Technical Field
The invention relates to the technical field of superconducting lightning protection structures, in particular to a superconducting lightning protection structure and an assembling method thereof.
Background
Lightning protection, which is a protection technology for preventing the damage of direct lightning or electromagnetic pulse of lightning to the building or internal equipment thereof by forming an integrated system mode of intercepting, dredging and finally discharging into the ground; especially in fields such as power transmission, for the guarantee safety, often adopt various lightning protection device, and general lightning protection device is when the assembly downlead, because the downlead cross section is mostly circular, consequently, its terminal part more or less takes place deformation when the installation, and the phenomenon of rupture easily appears when deformation is great, influences lightning protection function.
Through the retrieval, chinese patent application number is CN201921195331.X, a connecting device of prefabricated building lightning protection downlead is disclosed, belong to building lightning protection downlead technical field, a connecting device of prefabricated building lightning protection downlead, including the slip casting sleeve, the inside of slip casting sleeve is provided with hole and a pair of outer hole, the hole is located between a pair of outer hole, and the hole communicates with each other with the outer hole, the inside of hole is equipped with electrically conductive post, electrically conductive spring is all fixedly connected with at the left and right ends of electrically conductive post, slip casting telescopic outer end bonds has a pair of pyrocondensation pipe, slip casting telescopic outer end fixedly connected with grout mouth, the grout mouth is located between a pair of pyrocondensation pipe. The down conductor in the above patent has the following disadvantages: when the lightning protection device is arranged on structures such as angle steel, the terminal part of the lightning protection device deforms more or less when being arranged, and the lightning protection function is affected due to the fact that the terminal part of the lightning protection device is prone to fracture when being deformed greatly.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a superconducting lightning protection structure and an assembling method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a superconductive lightning protection structure and an assembly method thereof comprise a down lead fixed on a tower through a fixed angle steel and a hoop, wherein the hoop is fixed on the circumferential outer wall of the tower through bolts after being sleeved, the outer wall of one side of the fixed angle steel is fixed on the outer wall of one side of the hoop through bolts, one end of the down lead is provided with a terminal shell, the outer wall of the terminal shell is connected with a terminal base through an annular bulge in a sliding manner, the top end of the terminal base is integrally provided with a terminal head, and the outer wall of one side of the terminal head is tangent to; the outer wall of one side of the terminal head is provided with an assembling hole and a waist-shaped hole, and the terminal head is arranged on the outer wall of one side of the fixed angle steel through the assembling hole, the waist-shaped hole and the two fastening bolts; the top end of the down lead is electrically connected with the fixed angle steel through the terminal shell, the annular bulge, the terminal seat and the terminal head in sequence; and the other end of the down lead is fixed with a flexible graphite grounding body through a connecting mechanism.
Preferably: terminal seat bottom outer wall integral type is provided with the cylindricality arch, and the cylindricality arch is located inside terminal shell one end, is provided with the electrically conductive shell fragment of circumference distribution between the protruding circumference outer wall of cylindricality and the terminal shell circumference inner wall, and electrically conductive shell fragment is the whirlwind structure, and terminal shell passes through electrically conductive shell fragment electric connection in the cylindricality arch.
Further: the connecting mechanism comprises a U-shaped seat and more than three pressing plates, one end of the down lead and the flexible graphite grounding body are overlapped in the U-shaped seat, the pressing plates are uniformly inserted into the inner wall of the U-shaped seat, and the outer wall of the top of each pressing plate is extruded on the outer wall of the bottom of the flexible graphite grounding body; the flexible graphite grounding body bottom outer wall integral type is provided with same connecting plate, and the connecting plate is fixed in U-shaped seat bottom outer wall through the fastener.
Further preferred is: the inner wall of the U-shaped seat is provided with anti-skid convex strips which are uniformly and symmetrically distributed.
As a preferable aspect of the present invention: the fastener is an anti-withdrawal bolt.
Further preferred as the invention: the superconducting lightning protection structure further comprises an assembled grounding net, wherein the mesh shape of the assembled grounding net is a mouth-shaped structure, four corners of the mouth-shaped structure are arc-shaped, the radian is 30 degrees, and the diameter of the ground net of the mouth-shaped structure is not less than 5 m.
As a still further scheme of the invention: the superconducting lightning protection structure further comprises an assembled grounding grid, the mesh shape of the assembled grounding grid is an O-shaped structure, and the diameter of the O-shaped structure grounding grid is not less than 5 m.
On the basis of the scheme: the down lead adopts a round wire or flat wire structure, the diameter of the round wire structure is 18mm or 20mm or 28mm, and the diameter of the flat wire structure is 40 x 5mm or 40 x 4 mm; the diameter of the flexible graphite grounding body is 28 mm.
An assembly method of a superconducting lightning protection structure comprises the steps of assembling a down lead and a fixed angle steel and assembling the down lead and a flexible graphite grounding body or two flexible graphite grounding bodies; the assembly of the down conductor and the fixed angle steel comprises the following steps:
s1: inserting one end of the down lead into the splicing fitting sleeve, wherein the depth is not less than 170 mm;
s2: a 600T annular reed press is used for extruding the splicing fitting sleeve until the splicing fitting sleeve is completely compressed;
s3: and the down lead is connected with the root of the tower through a terminal head and a fixed angle steel by using a M16 detachable anti-theft bolt.
It is further preferable on the basis of the foregoing scheme that: the assembly of the down lead and the flexible graphite grounding body or the two flexible graphite grounding bodies comprises the following steps:
s11: overlapping the down lead to be connected and the flexible graphite grounding body or two flexible graphite grounding bodies in the groove of the U-shaped seat;
s12: the flexible graphite grounding body and the down lead are tightly pressed in the groove of the U-shaped seat by using the pressing plate until the pressing plate and two ends of the groove of the U-shaped seat are completely overlapped;
s13: and inserting and fixing the anti-withdrawal bolt.
The invention has the beneficial effects that:
1. according to the invention, the outer wall of one side of the terminal head is tangent to the circumferential outer wall of the terminal base, so that the deformation of the terminal head can be reduced as much as possible in the installation process, and the phenomenon of bending and breaking between the terminal head and the terminal base is avoided; and because of the annular bulge, the rotary force which may occur in the assembling or using process of the terminal shell can be removed; the acting force between the terminal head and the terminal seat is reduced, and the firmness is further improved.
2. Through setting up electrically conductive shell fragment, under the condition that can satisfy certain rotation space, promote the thunder effect of leading between terminal shell and the terminal seat.
3. Through setting up structures such as fastener, connecting plate, can be convenient for with downlead and flexible graphite grounding body locking fixed, through setting up anti-skidding sand grip, can play anti-skidding effect, promote the firmness of downlead and the installation of flexible graphite grounding body.
4. Through setting up mouthful shape structure or O shape structure equipment grounding net, can promote the effect of leaking that looses of lightning current in soil, promote lightning protection performance.
Drawings
Fig. 1 is a schematic structural view of an assembly of a down lead and a fixed angle steel of a superconducting lightning protection structure according to the present invention;
fig. 2 is a schematic structural diagram of a terminal block of a superconducting lightning protection structure according to the present invention;
FIG. 3 is a schematic sectional view of a terminal block of a superconducting lightning protection structure according to the present invention;
FIG. 4 is a schematic structural diagram of an assembly of a down lead of a superconducting lightning protection structure and a flexible graphite grounding body according to the present invention;
fig. 5 is a front view of an assembly of a down lead of a superconducting lightning protection structure and a flexible graphite grounding body according to the present invention.
In the figure: the cable comprises a down lead 1, a terminal shell 2, a terminal base 3, a terminal head 4, a hoop 5, a fixed angle steel 6, a tower 7, a waist-shaped hole 8, a fastening bolt 9, an annular protrusion 10, a conductive elastic sheet 11, a columnar protrusion 12, a flexible graphite grounding body 13, a U-shaped base 14, a pressing plate 15, a fastening piece 16, a connecting plate 17 and an anti-skid convex strip 18.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1:
a superconductive lightning protection structure is shown in figures 1-5 and comprises a down conductor 1 fixed on a tower 7 through a fixed angle iron 6 and a hoop 5; the anchor ear 5 is fixed on the circumferential outer wall of the tower 7 through bolts after being sleeved, the outer wall of one side of the fixed angle steel 6 is fixed on the outer wall of one side of the anchor ear 5 through bolts, one end of the down lead 1 is provided with a terminal shell 2, the outer wall of the terminal shell 2 is connected with a terminal base 3 through an annular bulge 10 in a sliding mode, the top end of the terminal base 3 is integrally provided with a terminal head 4, and the outer wall of one side of the terminal head 4 is tangent to the circumferential outer; the outer wall of one side of the terminal head 4 is provided with an assembling hole and a waist-shaped hole 8, and the terminal head 4 is arranged on the outer wall of one side of the fixed angle steel 6 through the assembling hole, the waist-shaped hole 8 and the two fastening bolts 9; the top end of the down lead 1 is electrically connected with the fixed angle steel 6 sequentially through the terminal shell 2, the annular bulge 10, the terminal seat 3 and the terminal head 4; the other end of the down lead 1 is fixed with a flexible graphite grounding body 13 through a connecting mechanism; the outer wall of one side of the terminal head 4 is tangent to the circumferential outer wall of the terminal base 3, so that the deformation of the terminal head 4 can be reduced as much as possible in the installation process, and the phenomenon of bending and breaking between the terminal head 4 and the terminal base 3 is avoided; and because of the annular bulge 10, the rotary force which may occur in the assembling or using process of the terminal shell 2 can be removed; the acting force between the terminal head 4 and the terminal base 3 is reduced, and the firmness is further improved.
In order to improve the lightning guiding effect; as shown in fig. 3, the outer wall of the bottom of the terminal block 3 is integrally provided with a cylindrical protrusion 12, the cylindrical protrusion 12 is located inside one end of the terminal shell 2, conductive elastic pieces 11 distributed circumferentially are arranged between the circumferential outer wall of the cylindrical protrusion 12 and the circumferential inner wall of the terminal shell 2, the conductive elastic pieces 11 are in a cyclone structure, and the terminal shell 2 is electrically connected to the cylindrical protrusion 12 through the conductive elastic pieces 11; through setting up electrically conductive shell fragment 11, under the condition that can satisfy certain rotation space, promote the thunder effect of leading between terminal shell 2 and the terminal seat 3.
In order to fix the down lead 1 and the flexible graphite grounding body 13 conveniently; as shown in fig. 4 and 5, the connecting mechanism includes a U-shaped seat 14 and more than three pressing plates 15, one end of the down conductor 1 and the flexible graphite grounding body 13 are overlapped in the U-shaped seat 14, the pressing plates 15 are uniformly inserted into the inner wall of the U-shaped seat 14, and the outer wall of the top of the pressing plate 15 is extruded on the outer wall of the bottom of the flexible graphite grounding body 13; the outer wall of the bottom end of the flexible graphite grounding body 13 is integrally provided with the same connecting plate 17, and the connecting plate 17 is fixed on the outer wall of the bottom of the U-shaped seat 14 through a fastener 16; the down conductor 1 and the flexible graphite grounding body 13 can be conveniently locked and fixed by arranging the fasteners 16, the connecting plates 17 and the like.
In order to improve the fixing effect; as shown in fig. 5, the inner wall of the U-shaped seat 14 is provided with the anti-slip convex strips 18 which are uniformly and symmetrically distributed, and by the arrangement of the anti-slip convex strips 18, an anti-slip effect can be achieved, and the firmness of installation of the down lead 1 and the flexible graphite grounding body 13 is improved.
In order to further improve the fixing effect; as shown in fig. 5, the fastener 16 is an anti-back latch.
In order to improve the dispersion and leakage effect of lightning current in soil; the superconducting lightning protection structure further comprises an assembled grounding net, wherein the mesh shape of the assembled grounding net is a mouth-shaped structure, four corners of the mouth-shaped structure are arc-shaped, the radian is 30 degrees, and the diameter of the ground net of the mouth-shaped structure is not less than 5 m.
In order to improve the dispersion and leakage effect of lightning current in soil; the superconducting lightning protection structure further comprises an assembled grounding grid, the mesh shape of the assembled grounding grid is an O-shaped structure, and the diameter of the O-shaped structure grounding grid is not less than 5 m.
In order to improve the lightning guiding performance; as shown in fig. 1 and 5, the down conductor 1 adopts a circular wire or flat wire structure, the diameter of the circular wire structure is 18mm or 20mm or 28mm, and the diameter of the flat wire structure is 40 × 5mm or 40 × 4 mm; the diameter of the flexible graphite grounding body 13 is 28 mm.
Example 2:
an assembly method of a superconducting lightning protection structure is shown in figures 1-5 and comprises the steps of assembling a down lead 1 and a fixed angle steel 6 and assembling the down lead 1 and a flexible graphite grounding body 13 or two flexible graphite grounding bodies 13; the assembly of the down conductor 1 and the fixed angle iron 6 comprises the following steps:
s1: inserting one end of the down lead 1 into a splicing fitting sleeve, wherein the depth is not less than 170 mm;
s2: a 600T annular reed press is used for extruding the splicing fitting sleeve until the splicing fitting sleeve is completely compressed;
s3: and the down lead 1 is connected with the root of the tower through the terminal head 4 and the fixed angle steel 6 by using the M16 detachable anti-theft bolt.
The assembly of the down conductor 1 and the flexible graphite grounding body 13 or two flexible graphite grounding bodies 13 comprises the following steps:
s11: the down lead 1 to be connected and the flexible graphite grounding body 13 or two flexible graphite grounding bodies 13 are overlapped and placed in the groove of the U-shaped seat 14;
s12: the flexible graphite grounding body 13 and the down lead 1 are pressed tightly in the groove of the U-shaped seat 14 by using the pressing plate 15 until the pressing plate 15 and the two ends of the groove of the U-shaped seat 14 are completely overlapped;
s13: and inserting and fixing the anti-withdrawal bolt.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A superconducting lightning protection structure comprises a down lead (1) fixed on a tower (7) through a fixed angle steel (6) and a hoop (5), and is characterized in that the hoop (5) is fixed on the outer wall of the circumference of the tower (7) through bolts after being sleeved, the outer wall of one side of the fixed angle steel (6) is fixed on the outer wall of one side of the hoop (5) through bolts, one end of the down lead (1) is provided with a terminal shell (2), the outer wall of the terminal shell (2) is connected with a terminal base (3) through an annular bulge (10) in a sliding mode, the top end of the terminal base (3) is integrally provided with a terminal head (4), and the outer wall of one side of the terminal head (4) is tangent to the outer; the outer wall of one side of the terminal head (4) is provided with an assembling hole and a waist-shaped hole (8), and the terminal head (4) is arranged on the outer wall of one side of the fixed angle steel (6) through the assembling hole, the waist-shaped hole (8) and the two fastening bolts (9); the top end of the down lead (1) is electrically connected with the fixed angle steel (6) sequentially through the terminal shell (2), the annular bulge (10), the terminal base (3) and the terminal head (4); and a flexible graphite grounding body (13) is fixed at the other end of the down lead (1) through a connecting mechanism.
2. A superconducting lightning protection structure according to claim 1, characterized in that the outer wall of the bottom of the terminal base (3) is integrally provided with a stud bump (12), the stud bump (12) is located inside one end of the terminal housing (2), a plurality of circumferentially distributed conductive elastic pieces (11) are arranged between the outer circumferential wall of the stud bump (12) and the inner circumferential wall of the terminal housing (2), the conductive elastic pieces (11) are of a cyclone structure, and the terminal housing (2) is electrically connected to the stud bump (12) through the conductive elastic pieces (11).
3. A superconducting lightning protection structure according to claim 2, wherein the connection mechanism comprises a U-shaped seat (14) and more than three pressing plates (15), one end of the down conductor (1) and the flexible graphite grounding body (13) are overlapped in the U-shaped seat (14), the pressing plates (15) are uniformly inserted into the inner wall of the U-shaped seat (14), and the top outer wall of the pressing plates (15) is extruded on the bottom outer wall of the flexible graphite grounding body (13); the outer wall of the bottom end of the flexible graphite grounding body (13) is integrally provided with the same connecting plate (17), and the connecting plate (17) is fixed on the outer wall of the bottom of the U-shaped seat (14) through a fastener (16).
4. A superconducting lightning protection structure according to claim 3, characterized in that the inner wall of the U-shaped seat (14) is provided with anti-slip ribs (18) distributed uniformly and symmetrically.
5. A superconducting lightning protection structure according to claim 4, characterized in that said fastening means (16) are anti-back pins.
6. The superconducting lightning protection structure according to claim 1, further comprising an assembled grounding grid, wherein the mesh shape of the assembled grounding grid is a square structure, four corners of the square structure are arc-shaped, the radian is 30 degrees, and the diameter of the square structure grounding grid is not less than 5 m.
7. The superconducting lightning protection structure according to claim 1, further comprising an assembled grounding grid, wherein the mesh shape of the assembled grounding grid is an O-shaped structure, and the diameter of the O-shaped structure grounding grid is not less than 5 m.
8. A superconducting lightning protection structure according to any of claims 1-7, characterized in that said down conductor (1) is in the form of a round or flat wire with a diameter of 18mm or 20mm or 28mm, and a flat wire with a diameter of 40 x 5mm or 40 x 4 mm; the diameter of the flexible graphite grounding body (13) is 28 mm.
9. The assembling method of the superconducting lightning protection structure is characterized by comprising the steps of assembling a down lead (1) and a fixed angle steel (6) and assembling the down lead (1) and a flexible graphite grounding body (13) or two flexible graphite grounding bodies (13); the assembly of the down lead (1) and the fixed angle steel (6) comprises the following steps:
s1: inserting one end of the down lead (1) into the splicing fitting sleeve, wherein the depth is not less than 170 mm;
s2: a 600T annular reed press is used for extruding the splicing fitting sleeve until the splicing fitting sleeve is completely compressed;
s3: the M16 detachable anti-theft bolt is used for connecting the down lead (1) with the root of the tower through the terminal head (4) and the fixed angle steel (6).
10. The assembling method of the superconducting lightning protection structure is characterized in that the assembling of the down lead (1) and the flexible graphite grounding body (13) or two flexible graphite grounding bodies (13) comprises the following steps:
s11: the down lead (1) to be connected and the flexible graphite grounding body (13) or two flexible graphite grounding bodies (13) are overlapped and placed in a groove of the U-shaped seat (14);
s12: the flexible graphite grounding body (13) and the down conductor (1) are pressed tightly in the groove of the U-shaped seat (14) by using the pressing plate (15) until the pressing plate (15) and the two ends of the groove of the U-shaped seat (14) are completely overlapped;
s13: and inserting and fixing the anti-withdrawal bolt.
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| CN109786987A (en) * | 2018-12-30 | 2019-05-21 | 杭州仕邦电力科技有限公司 | Cable connector connection structure and connection method |
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| CN112186699B (en) | 2022-08-16 |
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