Disclosure of Invention
The invention aims to provide a lightning arrester for an electric power iron tower, which can adjust the size of an air gap by adjusting the distance between a first electrode body and a second electrode body, thereby completing a gap type lightning arrester effect, effectively prolonging the service life of the lightning arrester and having a better lightning arrester effect.
To achieve the object, the present invention adopts the following technical solution, providing a lightning protection device for an electric power iron tower, comprising a wiring mechanism, an insulating support mechanism, a first connecting member, a second connecting member, a third connecting member, a first electrode body, a second electrode body, a lightning protection mechanism and a ground wire connector, wherein the wiring mechanism and the lightning protection mechanism are both vertically installed on the insulating support mechanism, the first electrode body comprises a first electrode support frame and a first electrode ball, the second electrode body comprises a second electrode support frame and a second electrode ball, the first electrode support frame is rotatably installed on the insulating support mechanism through the first connecting member, the first connecting member penetrates through the insulating support frame to be connected with the wiring mechanism, the second electrode support frame is rotatably installed at the top end of the lightning protection mechanism through the second connecting member, the first electrode ball and the second electrode ball are respectively installed on the first electrode support frame and the second electrode support frame, the distance between the first electrode ball and the second electrode ball is adjusted by adjusting the angles of the first electrode support frame and the second electrode support frame, the ground wire connector is installed on the insulating support mechanism through a third connecting piece, and the third connecting piece penetrates through the insulating support mechanism and is connected with the bottom end of the lightning protection mechanism.
As an optimal scheme of the lightning protection device for the electric power iron tower, the insulating support mechanism comprises a first insulating support platform, a second insulating support platform and an insulating rod, the insulating rod fixedly connects the first insulating support platform and the second insulating support platform, the wiring mechanism and the lightning protection mechanism are respectively installed on the first insulating support platform and the second insulating support platform, the first connecting piece penetrates through the first insulating support platform and is connected with the wiring mechanism, and the third connecting piece penetrates through the second insulating support platform and is fixedly connected with the bottom end of the lightning protection mechanism.
As a preferred scheme of the lightning arrester for the electric power iron tower, the insulating support mechanism further comprises a mounting bracket, the mounting bracket is fixedly mounted on the circumferential surface of the first insulating support platform, and a threaded hole is formed in the mounting bracket.
As an optimal scheme of the lightning arrester for the electric power iron tower, the insulating support mechanism further comprises an insulating ring, the insulating ring is uniformly sleeved on the insulating rod along the axial direction of the insulating rod, and the lowest end of the insulating ring is located between the first connecting piece and the third connecting piece.
As an electric power is preferred scheme of lightning arrester for iron tower, the wiring mechanism is including the puncture fastener, insulating roof, insulator foot, insulated column and branch wire, insulator foot, insulated column and insulating roof coaxial arrangement in proper order are on first insulation supporting station, the puncture fastener is installed on insulating roof, branch wire's one end sets up in the puncture fastener, branch wire's the other end coaxial running through insulator foot in proper order, insulator column and insulator foot weld with the first connecting piece that runs through first insulation supporting station.
As a preferred scheme of the lightning arrester for the electric power iron tower, the first connecting piece comprises a first bolt, a first nut and a first gasket, the first bolt penetrates through the first insulating supporting table and is fixed on the first insulating supporting table, one end of the first bolt is welded with the branch lead, and the first gasket and the first electrode body are inserted into the first bolt and are fixed on the first bolt through the first nut; the second connecting piece is including second bolt and second nut, and second bolt fixed mounting is on lightning-arrest mechanism's top, and the one end of the second electrode body is pegged graft on the second bolt and is installed on first bolt through the second nut.
As an optimal scheme of the lightning arrester for the electric power iron tower, the lightning arresting mechanism comprises an arrester body and a grading ring, the arrester body is coaxially arranged on a second insulating supporting platform, and the grading ring is fixedly arranged at the top end of the arrester body through a second connecting piece.
As an optimal scheme of the lightning arrester for the electric power iron tower, the third connecting piece comprises a third bolt, a third nut and a second gasket, the third bolt penetrates through the second insulating supporting table and is fixedly installed on the second insulating supporting table, one end of the third bolt is connected with the bottom end of the lightning arrester body, and the second gasket and the ground wire connector are sequentially inserted into the third bolt and are fixedly installed on the third bolt through the third nut.
The invention has the beneficial effects that:
the device is arranged at a proper position of an electric iron tower by a worker, a high-voltage wire is connected with a branch wire through a puncture wire clamp, a ground wire connector is connected with a ground wire, an insulating support mechanism is used for supporting a wiring mechanism and a lightning protection mechanism to work normally, a first electrode support frame is rotatably arranged on the insulating support mechanism through a first connecting piece, a second electrode support frame is rotatably arranged at the top end of the lightning protection mechanism through a second connecting piece, the distance between a first electrode ball and a second electrode ball can be adjusted by adjusting the angle of the first electrode support frame and the angle of the second electrode support frame, so that a certain gap exists between the first electrode ball and the second electrode ball, and by utilizing the series gap, when a system works normally, the air gap isolates a power frequency voltage, and the lightning protection mechanism bears almost no voltage; under the action of lightning overvoltage, an air gap between the first electrode body and the second electrode body is broken down, the lightning protection mechanism presents a low impedance state under high voltage, the third connecting piece is used for installing the ground wire connector on the insulating support mechanism and is connected with the bottom end of the lightning protection mechanism through the insulating support mechanism, and therefore lightning current is discharged into the ground; after the lightning impulse, power frequency voltage adds on lightning-arrest mechanism, and lightning-arrest mechanism gets back to the high impedance state under low-voltage, and the power frequency afterflow that passes through is suppressed to very little value, and air gap dielectric strength obtains recovering rapidly, and the interruption afterflow, the system get back to normal operating condition again for lightning-arrest effect of lightning-arrest mechanism is better.
The device accessible is adjusted the size in distance adjustment air gap between first electrode body and the second electrode body to accomplish the lightning-arrest effect of clearance formula, the effectual life who prolongs the arrester, and lightning-arrest effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a front view of a lightning arrester for an electric power iron tower according to an embodiment of the present invention;
fig. 2 is a first perspective view of a lightning arrester for an electric power iron tower according to an embodiment of the invention;
fig. 3 is a top view of a lightning arrester for an electric power iron tower according to an embodiment of the present invention;
fig. 4 is a second perspective view of a lightning arrester for an electric power iron tower according to an embodiment of the present invention;
fig. 5 is a third perspective view of a lightning arrester for an electric power iron tower according to an embodiment of the present invention;
fig. 6 is a perspective view of an insulating support mechanism of a lightning arrester for an electric power iron tower according to an embodiment of the present invention.
In the figure:
1. a wiring mechanism; 1a, puncturing wire clamps; 1b, an insulating top plate; 1c, an insulating base; 1d, insulating columns; 1e, branch leads;
2. an insulating support mechanism; 2a, a first insulating support table; 2b, a second insulating support table; 2c, an insulating rod; 2d, mounting a bracket; 2e, an insulating ring;
3. a first connecting member; 3a, a first bolt; 3b, a first nut; 3c, a first gasket;
4. a second connecting member; 4a, a second bolt; 4b, a second nut;
5. a third connecting member; 5a, a third bolt; 5b, a third nut; 5c, a second gasket;
6. a first electrode body; 6a, a first electrode support frame; 6b, a first electrode ball;
7. a second electrode body; 7a, a second electrode support frame; 7b, a second electrode ball;
8. a lightning protection mechanism; 8a, a lightning arrester body; 8b, grading rings;
9. a ground wire connector.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, a lightning protection device for an electric power iron tower comprises a wiring mechanism 1, an insulating support mechanism 2, a first connecting piece 3, a second connecting piece 4, a third connecting piece 5, a first electrode body 6, a second electrode body 7, a lightning protection mechanism 8 and a ground wire connector 9, wherein the wiring mechanism 1 and the lightning protection mechanism 8 are vertically installed on the insulating support mechanism 2, the first electrode body 6 comprises a first electrode support frame 6a and a first electrode ball 6b, the second electrode body 7 comprises a second electrode support frame 7a and a second electrode ball 7b, the first electrode support frame 6a is rotatably installed on the insulating support mechanism 2 through the first connecting piece 3, the first connecting piece 3 penetrates through the insulating support frame to be connected with the wiring mechanism 1, the second electrode support frame 7a is rotatably installed at the top end of the lightning protection mechanism 8 through the second connecting piece 4, and the first electrode ball 6b and the second electrode ball 7b are respectively installed on the first electrode support frame 6a and the second electrode support frame 6a On the support frame 7a, the distance between the first electrode ball 6b and the second electrode ball 7b is adjusted by adjusting the angles of the first electrode support frame 6a and the second electrode support frame 7a, the ground wire connector 9 is installed on the insulating support mechanism 2 through the third connecting piece 5, and the third connecting piece 5 penetrates through the insulating support mechanism 2 and is connected with the bottom end of the lightning protection mechanism 8.
The insulating support mechanism 2 is used for supporting the wiring mechanism 1 and the lightning protection mechanism 8 to normally work, the wiring mechanism 1 is used for connecting a high-voltage wire, the first electrode support frame 6a is rotatably arranged on the insulating support mechanism 2 by the first connecting piece 3, the second electrode support frame 7a is rotatably arranged at the top end of the lightning protection mechanism 8 by the second connecting piece 4, the distance between the first electrode ball 6b and the second electrode ball 7b can be adjusted by adjusting the angles of the first electrode support frame 6a and the second electrode support frame 7a, so that a certain gap exists between the first electrode ball 6b and the second electrode ball 7b, and by utilizing the series gap, when the system normally operates, the air gap isolates the power-frequency voltage, and the lightning protection mechanism 8 hardly bears the voltage; under the action of lightning overvoltage, an air gap between the first electrode body 6 and the second electrode body 7 is broken down, the lightning protection mechanism 8 presents a low impedance state under high voltage, the third connecting piece 5 is used for installing the ground wire connector 9 on the insulating support mechanism 2, the third connecting piece 5 penetrates through the insulating support mechanism 2 and is connected with the bottom end of the lightning protection mechanism 8, and the ground wire connector 9 is connected with the ground wire, so that lightning is discharged into the ground; after the lightning impulse, power frequency voltage adds on lightning-arrest mechanism 8, and lightning-arrest mechanism 8 gets back to the high impedance state under low-voltage, and the power frequency afterflow that passes through is suppressed very little value, and air gap dielectric strength obtains recovering rapidly, and the interruption afterflow, the system get back to normal operating condition again for lightning-arrest effect of lightning-arrest mechanism 8 is better.
Insulating supporting mechanism 2 is including first insulating supporting station 2a, second insulating supporting station 2b and insulator spindle 2c, insulator spindle 2c is with first insulating supporting station 2a and second insulating supporting station 2b fixed connection, wiring mechanism 1 and lightning-arrest mechanism 8 install respectively on first insulating supporting station 2a and second insulating supporting station 2b, first connecting piece 3 runs through first insulating supporting station 2a and links to each other with wiring mechanism 1, third connecting piece 5 runs through second insulating supporting station 2b and 8 bottom fixed connection of lightning-arrest mechanism.
The first insulating supporting platform 2a is used for supporting the wiring mechanism 1 and installing the first connecting piece 3, the second insulating supporting platform 2b is used for fixedly supporting the lightning protection mechanism 8 and installing the third connecting piece 5, and the insulating rod 2c is used for fixedly connecting the first insulating supporting platform 2a and the second insulating supporting platform 2b, so that a sufficient space is reserved between the wiring mechanism 1 and the lightning protection mechanism 8, the device can normally operate, electric arcs are prevented from being generated between the wiring mechanism 1 and the lightning protection mechanism 8 due to too close distance, and the lightning protection mechanism 8 is made to fail.
The insulating support mechanism 2 further comprises a mounting support 2d, the mounting support 2d is fixedly mounted on the circumferential surface of the first insulating support platform 2a, and threaded holes are formed in the end surface of the mounting support 2 d.
The insulating support mechanism 2 is used for supporting the whole device, the mounting bracket 2d is fixedly arranged on the first insulating support platform 2a, the mounting bracket 2d can be used for mounting the whole lightning protection equipment on the electric power iron tower, the mounting bracket 2d is provided with a threaded hole, so that workers can conveniently and firmly mount the whole lightning protection equipment on the electric power iron tower through fixing screws and nuts,
the insulating support mechanism 2 further comprises an insulating ring 2e, the insulating ring 2e is uniformly sleeved on the insulating rod 2c along the axial direction of the insulating rod 2c, and the lowest end of the insulating ring is located between the first connecting piece 3 and the third connecting piece 4.
The insulating ring 2e is installed on the insulating rod 2c, and the lowest end of the insulating ring 2e is positioned between the first connecting piece 3 and the second connecting piece 4, so that the lightning arrester is prevented from losing effect due to the fact that electric arcs are generated between the first connecting piece 3 and the second connecting piece 4.
The wiring mechanism 1 comprises a puncture wire clamp 1a, an insulating top plate 1b, an insulating base 1c, an insulating column 1d and a branch wire 1e, the insulating base 1c, the insulating column 1d and the insulating top plate 1b are sequentially and coaxially installed on a first insulating supporting platform 2a, the puncture wire clamp 1a is installed on the insulating top plate 1b, one end of the branch wire 1e is arranged in the puncture wire clamp 1a, the other end of the branch wire 1e sequentially and coaxially penetrates through the insulating top plate 1b, and the insulating column 1d and the insulating base 1c are welded with a first connecting piece 3 penetrating through the first insulating supporting platform 2 a.
First insulation support platform 2a is used for connecting wiring mechanism 1 and first connecting piece 3, puncture fastener 1a is used for connecting high-voltage line and branch conductor 1e, insulating base 1c, insulating column 1d and insulating roof 1b coaxial arrangement in proper order are on first support platform, be convenient for be connected puncture fastener 1a and high-voltage line, branch conductor 1e communicates high-voltage line and first connecting piece 3, thereby make the overvoltage current on the high-voltage line flow to first connecting piece 3 from branch conductor 1e, thereby make leading overvoltage current to lightning arrester.
The first connecting piece 3 comprises a first bolt 3a, a first nut 3b and a first gasket 3c, the first bolt 3a penetrates through the first insulating support platform 2a and is fixed on the first insulating support platform 2a, one end of the first bolt 3a is welded with the branch lead 1e, and the first gasket 3c and the first electrode body 6 are inserted on the first bolt 3a and are fixed on the first bolt 3a through the first nut 3 b; the second connecting piece 4 comprises a second bolt 4a and a second nut 4b, the second bolt 4a is fixedly installed at the top end of the lightning protection mechanism 8, and one end of the second electrode body 7 is inserted into the second bolt 4a and installed on the first bolt 3a through the second nut 4 b.
The first bolt 3a and the first nut 3b are used for rotatably mounting the first electrode body 6 on the first insulation supporting platform 2a, the first gasket 3c is used for isolating the first electrode body 6 from the first insulation supporting platform 2a so as to reduce abrasion to the first insulation supporting platform 2a, and the second bolt 4a and the second nut 4b rotatably mount the second electrode body 7 on the top end of the lightning protection mechanism 8 so as to enable the distance between the first electrode body 6 and the second electrode body 7 to be freely adjusted, so that an air gap exists between the first electrode body 6 and the second electrode body 7, so that under the action of lightning overvoltage, overvoltage current on the branch lead 1e can break through the air gap and be discharged into the ground through the lightning protection mechanism 8, and the whole device can achieve the lightning protection effect.
Lightning-arrest mechanism 8 is including lightning arrester body 8a and equalizer ring 8b, and lightning arrester body 8a coaxial arrangement is on second insulating supporting bench 2b, and equalizer ring 8b passes through 4 fixed mounting on the top of lightning arrester body 8a of second connecting piece.
The lightning arrester body 8a is installed on second insulating supporting platform 2b, and lightning arrester body 8a is used for preventing that high-voltage line from producing the harm because of the excessive pressure, and equalizer ring 8b installs the top at lightning arrester body 8a through second connecting piece 4, and equalizer ring 8b is used for the balanced stray capacitance to ground, makes voltage distribution even, does not take place local breakdown and makes lightning arrester body 8a damage.
The third connecting piece 5 comprises a third bolt 5a, a third nut 5b and a second gasket 5c, the third bolt 5a penetrates through the second insulating support platform 2b and is fixedly installed on the second insulating support platform 2b, one end of the third bolt 5a is connected with the bottom end of the lightning arrester body 8a, and the second gasket 5c and the ground wire connector 9 are sequentially inserted into the third bolt 5a and are fixedly installed on the third bolt 5a through the third nut 5 b.
The third bolt 5a and the third nut 5b are used for mounting the ground connector 9 on the second insulating support platform 2b, the third bolt 5a penetrates through the second insulating support platform 2b and is connected with the lightning arrester body 8a, the ground connector 9 is connected with the ground wire, so that overvoltage current flows from the lightning arrester body 8a to the third bolt 5a, flows to the ground wire through the third bolt 5a and the ground connector 9, and is discharged into the ground by the ground wire, so that the lightning arrester completes lightning protection, and the second gasket 5c is used for isolating the second insulating support platform 2b from the ground connector 9, so that the abrasion of the second insulating support platform 2b is reduced.
The working principle of the invention is as follows:
the worker installs the device at a proper position of the electric power iron tower, and connects the high-voltage wire with the branch wire 1e through the puncture clamp 1a, and connects the ground wire connector 9 with the ground wire, the insulation support mechanism 2 is used for supporting the normal work of the wiring mechanism 1 and the lightning protection mechanism 8, the first connecting piece 3 rotatably installs the first electrode support frame 6a on the insulation support mechanism 2, the second connecting piece 4 rotatably installs the second electrode support frame 7a on the top end of the lightning protection mechanism 8, the distance between the first electrode ball 6b and the second electrode ball 7b can be adjusted by adjusting the angle of the first electrode support frame 6a and the second electrode support frame 7a, so that a certain gap exists between the first electrode ball 6b and the second electrode ball 7b, and by using the series gap, when the system normally operates, the air gap isolates the power frequency voltage, the lightning protection mechanism 8 bears almost no voltage; under the action of lightning overvoltage, an air gap between the first electrode body 6 and the second electrode body 7 is broken down, the lightning protection mechanism 8 presents a low impedance state under high voltage, the third connecting piece 5 is used for installing the ground wire connector 9 on the insulating support mechanism 2, and the third connecting piece 5 penetrates through the insulating support mechanism 2 and is connected with the bottom end of the lightning protection mechanism 8, so that lightning current is discharged into the ground; after the lightning impulse, power frequency voltage adds on lightning-arrest mechanism 8, and lightning-arrest mechanism 8 gets back to the high impedance state under low-voltage, and the power frequency afterflow that passes through is suppressed very little value, and air gap dielectric strength obtains recovering rapidly, and the interruption afterflow, the system get back to normal operating condition again for lightning-arrest effect of lightning-arrest mechanism 8 is better.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.