CN215954951U

CN215954951U - Composite jacket metal oxide lightning protection device with gap for 35KV line

Info

Publication number: CN215954951U
Application number: CN202122112655.6U
Authority: CN
Inventors: 李岗阳; 王海峰
Original assignee: Wuhan Haicubic Electric Technology Co ltd
Current assignee: Wuhan Haicubic Electric Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-04
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a metal oxide lightning protection device with a gap composite outer sleeve for a 35KV line, which comprises a lightning arrester body, a composite outer sleeve and a heat dissipation base, wherein the composite outer sleeve is sleeved outside the lightning arrester body, the heat dissipation base is connected to the bottom end of the lightning arrester body, the lightning arrester body is composed of a hollow insulating cylinder, a heat insulation sleeve, a heat conduction sleeve and a zinc oxide valve block, the heat insulation sleeve is positioned on the inner side wall of the hollow insulating cylinder, the heat conduction sleeve is positioned on the inner side wall of the heat insulation sleeve, and the zinc oxide valve block is positioned in the middle position inside the heat conduction sleeve. Has the advantages that: the composite outer sleeve metal oxide lightning protection device has good heat dissipation performance, can effectively avoid thermal breakdown and thermal explosion of the composite outer sleeve metal oxide lightning protection device, and improves the service life and the use safety.

Description

Composite jacket metal oxide lightning protection device with gap for 35KV line

Technical Field

The utility model relates to the technical field of electric power engineering, in particular to a metal oxide lightning protection device with a gap composite outer sleeve for a 35KV line.

Background

The lightning arrester is a protection device for protecting the insulation performance of electrical equipment in an electric power system from lightning overvoltage or internal overvoltage caused by equipment operation, and is an important protection link related to safe and stable operation of the electric power system. With the increase of the voltage grade, the problem of system overvoltage becomes more and more prominent, and the improvement of the running performance of the lightning arrester is very important. The metal oxide lightning arrester can not only bear power frequency voltage for a long time, but also intermittently bear transient overvoltage such as power frequency overvoltage, lightning overvoltage, operation overvoltage and the like, so that the temperature of the zinc oxide resistor disc in the metal oxide lightning arrester is easily increased, heat cannot be effectively dissipated, and the metal oxide lightning arrester can be thermally damaged when the temperature exceeds a certain limit value for a long time.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a gap-containing composite jacket metal oxide lightning protection device for a 35KV line, which aims to overcome the technical problems in the prior related art.

Therefore, the utility model adopts the following specific technical scheme:

the utility model provides a 35KV circuit is with compound overcoat metal oxide lightning protection device in band gap, includes arrester body, compound overcoat and heat dissipation base, compound overcoat is located the outside of arrester body, the heat dissipation base connect in the bottom of arrester body, the arrester body comprises hollow insulating cylinder, thermal-insulated sleeve, heat-conducting sleeve and zinc oxide valve block, thermal-insulated sleeve is located the inside wall of hollow insulating cylinder, heat-conducting sleeve is located thermal-insulated telescopic inside wall, the zinc oxide valve block is located the inside intermediate position of heat-conducting sleeve.

Furthermore, the top of arrester body is provided with the metal shrouding, it has last locking screw to alternate on the metal shrouding, it is equipped with last lock nut group to overlap on the locking screw.

Further, the bottom of arrester body is provided with down the metal shrouding, it has lower locking screw to alternate on the metal shrouding down, the cover is equipped with down lock nut group on the lower locking screw.

Furthermore, the upper metal sealing plate and the lower metal sealing plate are provided with first through holes matched with the upper locking screw and the lower locking screw, the inner side wall of the first through hole is provided with a first sealing gasket, and sealing gaskets are arranged between the upper metal sealing plate and the lower metal sealing plate as well as between the upper metal sealing plate and the lightning arrester body.

Furthermore, the top end of the zinc oxide valve plate is provided with an upper terminal base, the bottom end of the zinc oxide valve plate is provided with a lower terminal base, and the upper terminal base and the lower terminal base are made of aluminum.

Furthermore, the bottom end of the heat-conducting sleeve is provided with a plurality of heat-radiating columns which are inserted into the lower metal sealing plate.

Furthermore, a plurality of through holes II matched with the heat dissipation columns are formed in the lower metal sealing plate, and sealing gaskets II are arranged on the inner side walls of the through holes II.

Furthermore, the heat dissipation base is composed of a heat dissipation ring and a plurality of heat dissipation fins, and a plurality of connecting holes matched with the heat dissipation columns are formed in the top end of the heat dissipation ring.

The utility model has the beneficial effects that: through the arrangement of the gap-carrying composite outer sleeve metal oxide lightning protection device for the 35KV line, which is composed of the lightning arrester body, the composite outer sleeve, the heat dissipation base, the hollow insulating cylinder, the heat insulation sleeve, the heat conduction sleeve and the zinc oxide valve plate, the gap-carrying composite outer sleeve metal oxide lightning protection device has better heat dissipation performance, can effectively avoid thermal breakdown and thermal explosion of the composite outer sleeve metal oxide lightning protection device, and improves the service life and the use safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a composite metal oxide jacketed lightning protection device with gap for 35KV line according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of a lightning arrester body of a metal oxide lightning protection device with a gap composite casing for a 35KV line according to an embodiment of the utility model;

FIG. 3 is a schematic structural diagram of a heat-conducting sleeve of a metal oxide lightning protection device with a gap composite sheath for a 35KV line according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic view of a lower metal sealing plate of the gap-equipped composite sheath metal oxide lightning protection device for a 35KV line according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a heat dissipation base of a metal oxide lightning protection device with a gap composite sheath for a 35KV line according to an embodiment of the utility model.

In the figure:

1. a lightning arrester body; 2. compounding the outer sleeve; 3. a heat dissipation base; 4. a hollow insulating cylinder; 5. a heat insulating sleeve; 6. a thermally conductive sleeve; 7. a zinc oxide valve plate; 8. an upper metal sealing plate; 9. locking the screw rod; 10. An upper lock nut group; 11. a lower metal seal plate; 12. a lower locking screw; 13. a lower lock nut group; 14. A first through hole; 15. sealing washer one; 16. sealing gaskets; 17. an upper terminal base; 18. a lower terminal base; 19. a heat-dissipating column; 20. a second through hole; 21. a second sealing washer; 22. a heat dissipation ring; 23. a heat dissipating fin; 24. and connecting the holes.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to the embodiment of the utility model, the lightning protection device with the gap composite casing metal oxide for the 35KV line is provided.

The first embodiment is as follows:

as shown in fig. 1 to 6, the gap-equipped composite outer sleeve metal oxide lightning protection device for a 35KV line according to the embodiment of the utility model includes a lightning arrester body 1, a composite outer sleeve 2 and a heat dissipation base 3, wherein the composite outer sleeve 2 is sleeved outside the lightning arrester body 1, the heat dissipation base 3 is connected to the bottom end of the lightning arrester body 1, the lightning arrester body 1 is composed of a hollow insulating cylinder 4, a heat insulation sleeve 5, a heat conduction sleeve 6 and a zinc oxide valve plate 7, the heat insulation sleeve 5 is located on the inner side wall of the hollow insulating cylinder 4, the heat conduction sleeve 6 is located on the inner side wall of the heat insulation sleeve 5, and the zinc oxide valve plate 7 is located in the middle position inside the heat conduction sleeve 6.

By means of the technical scheme, the gap-carrying composite casing metal oxide lightning protection device for the 35KV line, which is composed of the lightning arrester body 1, the composite casing 2, the heat dissipation base 3, the hollow insulating cylinder 4, the heat insulation sleeve 5, the heat conduction sleeve 6 and the zinc oxide valve plate 7, is arranged, so that the composite casing metal oxide lightning protection device has good heat dissipation performance, can effectively prevent the composite casing metal oxide lightning protection device from thermal breakdown and thermal explosion, and improves the service life and the use safety.

Example two:

as shown in fig. 1-6, the composite outer sleeve 2 is sleeved outside the arrester body 1, the heat dissipation base 3 is connected to the bottom end of the arrester body 1, the arrester body 1 is composed of a hollow insulating cylinder 4, a heat insulation sleeve 5, a heat conduction sleeve 6 and a zinc oxide valve plate 7, the heat insulation sleeve 5 is located on the inner side wall of the hollow insulating cylinder 4, the heat conduction sleeve 6 is located on the inner side wall of the heat insulation sleeve 5, the zinc oxide valve plate 7 is located in the middle position inside the heat conduction sleeve 6, an upper metal sealing plate 8 is arranged at the top end of the arrester body 1, an upper locking screw 9 is inserted on the upper metal sealing plate 8, an upper locking nut group 10 is sleeved on the upper locking screw 9, a lower metal sealing plate 11 is arranged at the bottom end of the arrester body 1, and a lower locking screw 12 is inserted on the lower metal sealing plate 11, the cover is equipped with down lock nut group 13 on the lower lock screw 12, go up metal shrouding 8 with all seted up on the metal shrouding 11 down with go up lock screw 9 with 12 assorted through-holes 14 of lock screw down, the inside wall of a through-hole 14 is provided with seal ring 15, go up metal shrouding 8 with down metal shrouding 11 with all be provided with seal gasket 16 between the arrester body 1, can improve the leakproofness of connecting through seal gasket 15 and seal gasket 16, avoid dust and water to enter into the inside of arrester body 1, through last lock screw 9, go up lock nut group 10, lock screw 12 down, lock nut group 13 can realize the stability of connecting down.

Example three:

as shown in fig. 1-6, the composite outer sleeve 2 is sleeved on the outer side of the arrester body 1, the heat dissipation base 3 is connected to the bottom end of the arrester body 1, the arrester body 1 is composed of a hollow insulating cylinder 4, a heat insulation sleeve 5, a heat conduction sleeve 6 and a zinc oxide valve plate 7, the heat insulation sleeve 5 is located on the inner side wall of the hollow insulating cylinder 4, the heat conduction sleeve 6 is located on the inner side wall of the heat insulation sleeve 5, the zinc oxide valve plate 7 is located at the middle position inside the heat conduction sleeve 6, an upper terminal seat 17 is arranged at the top end of the zinc oxide valve plate 7, a lower terminal seat 18 is arranged at the bottom end of the zinc oxide valve plate 7, the upper terminal seat 17 and the lower terminal seat 18 are both made of aluminum, a plurality of heat dissipation columns 19 inserted into the lower metal sealing plate 11 are arranged at the bottom end of the heat conduction sleeve 6, a plurality of through holes two 20 matched with the heat dissipation columns 19 are arranged on the lower metal sealing plate 11, the inside wall of the second through hole 20 is provided with a second sealing washer 21, the heat dissipation base 3 is composed of a heat dissipation ring 22 and a plurality of heat dissipation fins 23, the top end of the heat dissipation ring 22 is provided with a plurality of connecting holes 24 matched with the heat dissipation columns 19, the heat dissipation ring 22 and the heat dissipation fins 23 can improve the heat dissipation performance, and the composite outer sleeve metal oxide lightning protection device is effectively prevented from thermal breakdown and thermal explosion.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

When in actual application, can realize thermal-insulated through thermal-insulated sleeve 5, avoid outside heat to cause the influence to arrester body 1, the heat that the inside production of arrester body 1 during operation is derived through heat dissipation post 19, radiating ring 22 and radiating fin 23, realizes the heat dissipation function to can effectively avoid composite coat metallic oxide lightning protection device to take place thermal collapse and thermal explosion, improve life and safety in utilization.

In summary, according to the technical scheme of the utility model, the gap-equipped composite-casing metal oxide lightning protection device for the 35KV line, which is composed of the lightning arrester body 1, the composite casing 2, the heat dissipation base 3, the hollow insulating cylinder 4, the heat insulation sleeve 5, the heat conduction sleeve 6 and the zinc oxide valve plate 7, is arranged, so that the lightning arrester has good heat dissipation performance, can effectively avoid thermal breakdown and thermal explosion of the composite-casing metal oxide lightning protection device, and can prolong the service life and improve the use safety.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a 35KV circuit is with compound overcoat metal oxide lightning protection device in band gap, its characterized in that, includes arrester body (1), compound overcoat (2) and heat dissipation base (3), compound overcoat (2) cover is located the outside of arrester body (1), heat dissipation base (3) connect in the bottom of arrester body (1), arrester body (1) comprises hollow insulating cylinder (4), thermal-insulated sleeve (5), heat-conducting sleeve (6) and zinc oxide valve block (7), heat-insulated sleeve (5) are located the inside wall of hollow insulating cylinder (4), heat-conducting sleeve (6) are located the inside wall of thermal-insulated sleeve (5), zinc oxide valve block (7) are located the inside intermediate position of heat-conducting sleeve (6).

2. The gap-containing composite sheath metal oxide lightning protection device for the 35KV line according to claim 1, wherein an upper metal sealing plate (8) is arranged at the top end of the lightning arrester body (1), an upper locking screw (9) is inserted on the upper metal sealing plate (8), and an upper locking nut group (10) is sleeved on the upper locking screw (9).

3. The gap-containing composite sheath metal oxide lightning protection device for the 35KV line according to claim 2, characterized in that a lower metal sealing plate (11) is arranged at the bottom end of the lightning arrester body (1), a lower locking screw rod (12) is inserted on the lower metal sealing plate (11), and a lower locking nut set (13) is sleeved on the lower locking screw rod (12).

4. The gap-equipped composite-casing metal oxide lightning protection device for 35KV line according to claim 3, characterized in that the upper metal sealing plate (8) and the lower metal sealing plate (11) are both provided with a first through hole (14) matched with the upper locking screw (9) and the lower locking screw (12), the inner side wall of the first through hole (14) is provided with a first sealing gasket (15), and sealing gaskets (16) are respectively arranged between the upper metal sealing plate (8) and the lower metal sealing plate (11) and the lightning arrester body (1).

5. The lightning protection device with the gap composite casing metal oxide for the 35KV line according to claim 1, wherein an upper terminal seat (17) is arranged at the top end of the zinc oxide valve plate (7), a lower terminal seat (18) is arranged at the bottom end of the zinc oxide valve plate (7), and the upper terminal seat (17) and the lower terminal seat (18) are both made of aluminum.

6. The gap-equipped composite sheathed metal oxide lightning protection device for 35KV line according to claim 3, wherein the bottom end of the heat-conducting sleeve (6) is provided with a plurality of heat-dissipating posts (19) inserted into the lower metal sealing plate (11).

7. The lightning protection device with the gap composite casing metal oxide for the 35KV line according to claim 6, wherein a plurality of second through holes (20) matched with the heat dissipation columns (19) are formed in the lower metal sealing plate (11), and a second sealing washer (21) is arranged on the inner side wall of each second through hole (20).

8. The gap-equipped composite-sheathed metal oxide lightning protection device for the 35KV line according to claim 6, wherein the heat dissipation base (3) is composed of a heat dissipation ring (22) and a plurality of heat dissipation fins (23), and the top end of the heat dissipation ring (22) is provided with a plurality of connecting holes (24) matched with the heat dissipation columns (19).