Arc extinguishing lightning protection device

Abstract

The application belongs to the technical field of arc extinguishing and lightning protection, and discloses an arc extinguishing and lightning protection device, which comprises an electrode chamber, an insulation chamber and a supply chamber. When lightning occurs, an electric arc is attracted by an upper electrode plate and passes through an arc passage hole to form a conductive loop with a lower electrode plate. The electric arc burns in the electrode chamber, and air expands under heat to push the insulation soft wall to bend to one side of the insulation chamber, thereby elongating the electric arc to cut off the electric arc. If the electric arc is not cut off, the midpoint of the electric arc can also be moved to achieve the purpose of elongating the electric arc. The heat generated by the electric arc can melt the insulation member on the lower electrode plate, and the liquid insulation member covers the end surface of the lower electrode plate facing the upper electrode plate to block the communication between the upper electrode plate and the lower electrode plate, so as to extinguish the electric arc. After the electric arc is extinguished, the liquid insulation member is discharged through the through hole, and the insulation member in the supply chamber enters the electrode chamber in the process of restoring the deformation of the elastic member, so as to supplement the insulation member for the next arc extinguishing operation. The arc extinguishing and lightning protection device does not need to be replaced regularly, can realize continuous arc extinguishing operation for multiple times, and has good economy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of arc extinguishing and lightning protection, and particularly relates to an arc extinguishing and lightning protection device. BACKGROUND

[0002] As a common natural phenomenon, lightning is a great threat to the safe operation of power transmission and distribution lines. In the current lightning protection method, installing a lightning arrester is a common lightning protection means. The lightning arrester can guide the lightning current to itself, thereby guiding the strong current into the ground. However, strong electric arcs are randomly generated after lightning, which can affect the service life of power system devices and even threaten the safe operation of the power system.

[0003] The arc extinguishing and lightning protection devices disclosed in the prior art mostly use gas arc extinguishing. However, pure gas arc extinguishing has certain limitations. For example, when the number of uses of the device is limited, the device needs to be replaced periodically, the service life of a single device is limited, which leads to an increase in the operation and maintenance cost of the power system and poor economy. In addition, a large amount of manpower is needed to complete the replacement and installation of the device, and automatic arc extinguishing and lightning protection cannot be achieved. SUMMARY

[0004] The purpose of the present application is to provide an arc extinguishing and lightning protection device that can achieve arc extinguishing by lengthening the electric arc, without the need for periodic replacement of arc extinguishing materials, and can extinguish arcs continuously for multiple times.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] An arc extinguishing and lightning protection device is provided, comprising:

[0007] An electrode chamber comprising an upper electrode plate, a lower electrode plate, an insulating side wall and an insulating partition plate, the upper electrode plate and the lower electrode plate being arranged at two ends of the insulating side wall in a vertical direction; a through hole is formed in the lower electrode plate; the insulating partition plate is arranged between the upper electrode plate and the lower electrode plate, and an arc passage hole is formed in the insulating partition plate;

[0008] An insulating chamber is arranged on one side of the electrode chamber, and an insulating flexible wall is connected between the insulating chamber and the electrode chamber; an elastic member is connected between the insulating flexible wall and the inner wall of the insulating chamber, and the elastic member extends in a horizontal direction; one end of the insulating partition plate is connected to the insulating flexible wall, and the other end abuts against the insulating side wall;

[0009] A feeding chamber is provided, and a plurality of insulating members are arranged in the feeding chamber. The heat generated by the electric arc can melt the insulating members from a solid state to a liquid state. An inlet is formed in the insulating side wall, and the feeding chamber is connected to the inlet;

[0010] The insulating partition plate has a plugging state in which the inlet is plugged and a separation state in which the inlet is separated.

[0011] As an optional solution of the arc-extinguishing lightning protection device, the exhaust port is arranged on the insulating side wall.

[0012] As an optional solution of the arc-extinguishing lightning protection device, the exhaust port is arranged in plurality.

[0013] As an optional solution of the arc-extinguishing lightning protection device, the lower electrode plate is arranged in V shape, and the through hole is arranged at the lowest position of the lower electrode plate.

[0014] As an optional solution of the arc-extinguishing lightning protection device, the through hole is arranged at the lowest position of the lower electrode plate.

[0015] As an optional solution of the arc-extinguishing lightning protection device, the supply chamber comprises:

[0016] The supply bin is arranged in plurality in the supply chamber.

[0017] The supply channel is arranged in communication with the supply bin at the first end and with the inlet at the second end, and the height of the first end is higher than that of the second end.

[0018] As an optional solution of the arc-extinguishing lightning protection device, the supply bin is made of transparent material.

[0019] As an optional solution of the arc-extinguishing lightning protection device, the insulating member is arranged in spherical shape, and the diameter of the insulating member is larger than that of the through hole.

[0020] As an optional solution of the arc-extinguishing lightning protection device, the insulating member is made of beeswax material.

[0021] As an optional solution of the arc-extinguishing lightning protection device, the elastic member is arranged between the insulating soft wall and the inner wall of the insulating chamber, and each of the elastic members is arranged in extension along the horizontal direction.

[0022] The beneficial effects of the present application are as follows:

[0023] The application provides an arc extinguishing lightning protection device. When not encountering lightning, the elastic member is in a natural state, and a plurality of insulating members are stored on the lower electrode plate. When lightning occurs, the electric arc is attracted by the upper electrode plate and passes through the arc passage hole to form a conductive loop with the lower electrode plate. The electric arc burns in the electrode chamber, the air in the electrode chamber expands due to heat, the insulating soft wall bends towards the side close to the insulating chamber, and the electric arc is elongated in the horizontal direction to cut off the electric arc. Even if the electric arc is not completely cut off, the midpoint of the electric arc can also be moved to one side to elongate the electric arc path. At the same time, the heat generated by the electric arc burning can melt the insulating members on the lower electrode plate, so that the insulating members in solid state at room temperature are converted into liquid state and cover the end surface of the upper electrode plate facing the lower electrode plate, thereby cutting off the communication between the electric arc and the lower electrode plate to extinguish the electric arc. When the electric arc is extinguished, the liquid insulating members can be discharged from the electrode chamber through the through hole on the lower electrode plate. In addition, during the elastic deformation recovery of the elastic member in the insulating chamber, the insulating members in the supply chamber enter the electrode chamber through the inlet on the insulating side wall and fall on the lower electrode plate to supplement the insulating members for the next arc extinguishing operation. When the lightning ends, the air in the electrode chamber expands to a smaller degree, the insulating soft wall moves towards the side close to the electrode chamber under the elastic force of the elastic member, and the insulating partition plate is switched to the blocking state to block the inlet to prevent the insulating members from falling continuously and wait for the next arc extinguishing operation. The device does not need to be replaced regularly, can realize continuous arc extinguishing operation for many times, and has good economy. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 FIG. 1 is a structural schematic diagram of an arc extinguishing lightning protection device provided by the embodiment of the application, which omits part of the structure;

[0025] Fig. 2 FIG. 2 is a sectional view of the arc extinguishing lightning protection device provided by the embodiment of the application;

[0026] Fig. 3 FIG. 3 is a structural schematic diagram of the insulating partition plate in the blocking state provided by the embodiment of the application.

[0027] In the drawings:

[0028] 1, electrode chamber;

[0029] 11, upper electrode plate;

[0030] 12, lower electrode plate; 120, through hole;

[0031] 13, insulating side wall; 130, inlet; 131, exhaust port;

[0032] 14, insulating partition plate; 140, arc passage hole;

[0033] 2, Insulation chamber; 21, Insulation soft wall; 22, Elastic member;

[0034] 3, Feeding chamber; 30, Insulation member; 31, Feeding bin; 32, Feeding channel. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the present application and are not limiting of the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the purpose of description.

[0036] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the purpose of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0039] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0040] As Figs. 1 to 3As shown, the present embodiment provides an arc extinguishing lightning protection device, which comprises an electrode chamber 1, an insulation chamber 2 and a supply chamber 3. The electrode chamber 1 comprises an upper electrode plate 11, a lower electrode plate 12, an insulation side wall 13 and an insulation partition plate 14. The upper electrode plate 11 and the lower electrode plate 12 are arranged at two ends of the insulation side wall 13 in a vertical direction. The lower electrode plate 12 is provided with a through hole 120. The insulation partition plate 14 is arranged between the upper electrode plate 11 and the lower electrode plate 12, and the insulation partition plate 14 is provided with an arc passage hole 140. The insulation chamber 2 is arranged at one side of the electrode chamber 1, and the insulation chamber 2 and the electrode chamber 1 are connected by an insulation soft wall 21. The insulation soft wall 21 and the inner wall of the insulation chamber 2 are connected by an elastic element 22, which extends in a horizontal direction. One end of the insulation partition plate 14 is connected to the insulation soft wall 21, and the other end abuts against the insulation side wall 13. The supply chamber 3 is provided with a plurality of insulation elements 30. The insulation side wall 13 is provided with an inlet 130, and the supply chamber 3 is communicated with the inlet 130. The insulation elements 30 can enter the electrode chamber 1 through the inlet 130. The insulation partition plate 14 has a blocking state of blocking the inlet 130 and a separation state of separating from the inlet 130.

[0041] When not encountering lightning strike, the elastic element 22 is in a natural state, and a plurality of insulation elements 30 are stored on the lower electrode plate 12. When lightning strike occurs, the electric arc is attracted by the upper electrode plate 11 and passes through the arc passage hole 140 to form a conductive loop with the lower electrode plate 12. The electric arc burns in the electrode chamber 1, and the air in the electrode chamber 1 expands due to heat, causing the insulation soft wall 21 to bend towards the side close to the insulation chamber 2, so as to elongate the electric arc in a horizontal direction to cut off the electric arc. Even if the electric arc is not completely cut off, the midpoint of the electric arc can also be moved to one side to achieve the effect of elongating the electric arc path. At the same time, the heat generated by the burning of the electric arc can melt the insulation elements 30 on the lower electrode plate 12, so that the insulation elements 30 in solid state at room temperature are converted into liquid state and cover the end surface of the lower electrode plate 12 facing the upper electrode plate 11, thereby blocking the communication between the electric arc and the lower electrode plate 12 to achieve the purpose of extinguishing the electric arc. When the electric arc is extinguished, the liquid insulation elements 30 can be discharged from the electrode chamber 1 through the through hole 120 on the lower electrode plate 12. In addition, in the process of restoring the elastic deformation of the elastic element 22 in the insulation chamber 2, the insulation elements 30 in the supply chamber 3 enter the electrode chamber 1 through the inlet 130 on the insulation side wall 13 and fall on the lower electrode plate 12 to supplement the insulation elements 30 for the next arc extinguishing operation. After the lightning strike ends, the air in the electrode chamber 1 expands to a smaller degree, and the insulation soft wall 21 moves towards the side close to the electrode chamber 1 under the elastic force of the elastic element 22, driving the insulation partition plate 14 to switch to the blocking state of blocking the inlet 130, so as to prevent the insulation elements 30 from continuing to fall and wait for the next arc extinguishing operation. The device does not need to be replaced regularly, and can realize continuous arc extinguishing operation for multiple times, which has good economy.

[0042] Specifically, in the embodiment, the insulation side wall 13 is in a C shape, and the insulation side wall 13, the upper electrode plate 11, the lower electrode plate 12 and the insulation soft wall 21 jointly form a closed hexahedral structure; the insulation chamber 2 is surrounded by five insulation plates, and the five insulation plates and the insulation soft wall 21 jointly form a closed hexahedral structure.

[0043] Exemplarily, in the embodiment, only one through-arc hole 140 is arranged on the insulation partition plate 14, and in other embodiments, a plurality of through-arc holes 140 can also be arranged, which is not specifically limited here.

[0044] Optionally, a plurality of elastic members 22 are arranged between the insulation soft wall 21 and the inner wall of the insulation chamber 2, and each elastic member 22 extends in the horizontal direction. The arrangement of the plurality of elastic members 22 can ensure the stability of the insulation soft wall 21 during deformation.

[0045] Exemplarily, in the embodiment, two elastic members 22 are arranged, and the elastic member 22 is a spring, which has the advantages of easy deformation and large elasticity, is easy to obtain, and has good economy; in other embodiments, the number of elastic members 22 can be arranged as needed, and the elastic member 22 can also be elastic rubber and the like.

[0046] Optionally, the exhaust port 131 is arranged on the insulation side wall 13. The arrangement of the exhaust port 131 connects the electrode chamber 1 with the external environment, so as to accelerate the heat diffusion in the electrode chamber 1, thereby helping to extinguish the arc.

[0047] Further, a plurality of exhaust ports 131 are arranged to further accelerate the heat diffusion in the electrode chamber 1 and improve the arc extinguishing efficiency.

[0048] Specifically, in the embodiment, only one exhaust port 131 is arranged, and the exhaust port 131 is arranged on the wall surface opposite to the insulation soft wall 21 of the insulation side wall 13; in other embodiments, a plurality of exhaust ports 131 can be arranged, and the plurality of exhaust ports 131 can be arranged on the wall surface opposite to the insulation soft wall 21 or on the wall surface adjacent to the insulation soft wall 21.

[0049] Optionally, the lower electrode plate 12 is arranged in a V shape, and the through hole 120 is located at the lowest part of the lower electrode plate 12. The above arrangement can ensure that the molten liquid insulation member 30 can be discharged from the electrode chamber 1, and at the same time, the upper electrode plate 11 can be communicated with the lower electrode plate 12 in the next arc extinguishing operation, so as to ensure the smooth continuous arc extinguishing.

[0050] Alternatively, in other embodiments, the lower electrode plate 12 is not limited to be arranged in a V shape. The lower electrode plate 12 can be slightly higher around and slightly lower in the middle, and the through hole 120 is arranged at the slightly lower position in the middle.

[0051] Further, a plurality of through holes 120 are arranged at the lowest part of the lower electrode plate 12, so that the molten liquid insulation member 30 can be discharged in time.

[0052] Specifically, in the present embodiment, only one through hole 120 is arranged; in other embodiments, the number of through holes 120 can be arranged as required.

[0053] Optionally, the feeding chamber 3 comprises a feeding bin 31 and a feeding channel 32, the feeding bin 31 is provided with a plurality of insulation members 30, the feeding channel 32 is communicated with the feeding bin 31 at a first end and communicated with the inlet 130 at a second end, and the height of the first end is higher than that of the second end, so as to ensure that the insulation members 30 in the feeding bin 31 can enter the electrode chamber 1 through the inlet 130 under the action of gravity.

[0054] Further, the feeding bin 31 is made of transparent material. Specifically, the feeding bin 31 is made of transparent acrylic plate, so as to facilitate real-time observation of the storage amount of the insulation members 30 in the feeding bin 31, and ensure the smooth operation of continuous arc extinguishing.

[0055] Optionally, the insulation member 30 is spherical, which is more conducive to the entry of the insulation member 30 into the electrode chamber 1, and the diameter of the insulation member 30 is larger than that of the through hole 120, so as to avoid the leakage of the solid insulation member 30 from the through hole 120.

[0056] Alternatively, in other embodiments, the insulation member 30 can also have other shapes, but the size of the insulation member 30 cannot be smaller than that of the through hole 120.

[0057] Optionally, the insulation member 30 is made of yellow wax material, which has insulation property, is in solid state under normal temperature condition, can be converted into liquid state after being heated at high temperature, and has good fluidity, so as to be discharged in time through the through hole 120.

[0058] Alternatively, in other embodiments, the insulation member 30 can also be other insulation materials, as long as it has insulation property and can be converted into liquid state at high temperature.

[0059] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An arc quenching lightning protection device, characterized in that, The utility model relates to an electrode chamber (1) including an upper electrode plate (11), a lower electrode plate (12), an insulating side wall (13) and an insulating partition plate (14), the upper electrode plate (11) and the lower electrode plate (12) are spaced apart in the vertical direction and arranged at both ends of the insulating side wall (13), a through hole (120) is formed in the lower electrode plate (12), the insulating partition plate (14) is arranged between the upper electrode plate (11) and the lower electrode plate (12), and a through arc hole (140) is formed in the insulating partition plate (14). An insulating chamber (2) is arranged on one side of the electrode chamber (1), an insulating soft wall (21) is connected between the insulating chamber (2) and the electrode chamber (1), an elastic member (22) is connected between the insulating soft wall (21) and the inner wall of the insulating chamber (2), and the elastic member (22) extends in the horizontal direction, one end of the insulating partition plate (14) is connected to the insulating soft wall (21), and the other end abuts against the insulating side wall (13). A feeding chamber (3) is provided, a plurality of insulating members (30) are arranged in the feeding chamber (3), the heat generated by arc burning can melt the insulating members (30) from solid to liquid, an inlet (130) is formed in the insulating side wall (13), and the feeding chamber (3) is connected to the inlet (130). The insulating partition plate (14) has a blocking state of blocking the inlet (130) and a separation state of separating from the inlet (130). An exhaust port (131) is formed in the insulating side wall (13).

2. The arc extinguishing lightning protection device according to claim 1, characterized in that The exhaust port (131) is provided with a plurality of exhaust ports.

3. The arc extinguishing lightning protection device according to claim 2, characterized in that The lower electrode plate (12) is arranged in a V shape, and the through hole (120) is located at the lowest part of the lower electrode plate (12).

4. The arc extinguishing lightning protection device according to claim 1, characterized in that, A plurality of through holes (120) are arranged at the lowest part of the lower electrode plate (12).

5. The arc extinguishing lightning protection device according to claim 4, characterized in that The feeding chamber (3) comprises:

6. The arc extinguishing lightning protection device according to claim 1, characterized in that, A feeding bin (31) is provided, a plurality of insulating members (30) are arranged in the feeding bin (31), A feeding channel (32) is provided, a first end of the feeding channel (32) is connected to the feeding bin (31), a second end of the feeding channel (32) is connected to the inlet (130), and the height of the position of the first end is higher than the height of the position of the second end. The feeding bin (31) is made of transparent material.

7. The arc extinguishing lightning protection device according to claim 6, characterized in that The insulating member (30) is spherical, and the diameter of the insulating member (30) is larger than the diameter of the through hole (120).

8. The arc extinguishing lightning protection device according to any of claims 1-7, characterized in that, The insulating member (30) is made of yellow wax material.

9. The arc extinguishing lightning protection device according to any of claims 1-7, characterized in that, A plurality of elastic members (22) are arranged between the insulating soft wall (21) and the inner wall of the insulating chamber, and each elastic member (22) extends in the horizontal direction.

10. The arc extinguishing lightning protection device according to any of claims 1-7, characterized in that, ​

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