A multi-chamber lightning arrester

Abstract

The utility model discloses a multi-chamber lightning arrester, which relates to the field of lightning arrester structure, including a grounding component, on which a supporting insulator and a lightning arrester component are fixedly arranged, an electrode plate and a wire clamp are connected to the top of the supporting insulator, an electrode sleeve is connected to the top of the lightning arrester component, a discharge gap is formed between the electrode plate and the electrode sleeve, the grounding component includes a grounding plate, an auxiliary plate is provided at the bottom of the grounding plate, the supporting insulator penetrates one side of the grounding plate and is connected to one side of the auxiliary plate, the other side of the grounding plate and the other side of the auxiliary plate are fixed by a bolt assembly, and a gap is provided between the two, and a shock absorbing member is provided in the gap; the multi-chamber lightning arrester can improve the seismic resistance of the multi-chamber lightning arrester through the mutual cooperation of the grounding component and the shock absorbing member, thereby reducing the probability of failure when the lightning wave intensity is large.

Description

Technical Field

[0001] The utility model relates to the field of lightning arrester structures, in particular to a multi-chamber lightning arrester. Background Art

[0002] Multi-chamber lightning arrester is a commonly used lightning protection device in power systems. Its main function is to protect power equipment from lightning damage by absorbing lightning energy and releasing overvoltage in a lightning environment. Multi-chamber lightning arrester is suitable for the construction of power systems of different sizes due to its stable performance, high reliability, long service life, simple structure, easy maintenance and relatively low price.

[0003] However, due to design and material limitations, multi-chamber lightning arresters have poor shock absorption capabilities and are prone to failure when lightning waves are strong. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-chamber lightning arrester, which can improve the seismic resistance of the multi-chamber lightning arrester through the mutual cooperation of the grounding component and the shock absorbing component, thereby reducing the probability of failure when the lightning wave intensity is large.

[0005] The above-mentioned optimized structure of the present utility model is achieved through the following technical solutions: a multi-chamber lightning arrester, including a grounding component, on which a supporting insulator and a lightning arrester component are fixedly provided, the top of the supporting insulator is connected to an electrode plate and a wire clamp, the top of the lightning arrester component is connected to an electrode sleeve, a discharge gap is formed between the electrode plate and the electrode sleeve, the grounding component includes a grounding plate, an auxiliary plate is provided at the bottom of the grounding plate, the supporting insulator passes through one side of the grounding plate and is connected to one side of the auxiliary plate, the other side of the grounding plate is fixed to the other side of the auxiliary plate by a bolt assembly, and a gap is provided between the two, and a shock absorber is provided in the gap.

[0006] In some embodiments, the bottom surface of the other side of the ground plate and the top surface of the auxiliary plate are both provided with mounting grooves, and the shock absorbing components are provided in the two mounting grooves.

[0007] In some embodiments, the cross-section of the mounting groove is T-shaped, and the cross-section of the shock-absorbing member is I-shaped.

[0008] In some embodiments, the shock absorber is made of glass fiber steel sheet.

[0009] In some embodiments, the wire clamp is a bolt-type lightning arrester drainage wire clamp.

[0010] In some embodiments, the other side of the ground plate and the other side of the auxiliary plate are both provided with mounting holes, and the mounting holes are waist-shaped holes.

[0011] In some embodiments, the lightning protection assembly includes a lightning protection body, an arc extinguishing chamber, and an umbrella skirt. The bottom of the lightning protection body is fixedly connected to the grounding plate, the top of the lightning protection body is provided with the electrode sleeve, at least three umbrella skirts are evenly spaced on the lightning protection body, and at least three arc extinguishing chambers are provided between two adjacent umbrella skirts.

[0012] In some embodiments, at least one arc extinguishing chamber is provided at the bottom and top of the umbrella skirt and the lightning protection body.

[0013] In some embodiments, the electrode plate is L-shaped, one end of which is connected to the top of the supporting insulator, and the other end is provided with an arc facing the electrode sleeve.

[0014] In summary, the utility model has the following beneficial effects:

[0015] This type of multi-chamber lightning arrester is provided with an auxiliary plate at the bottom of the grounding plate, which can improve the installation strength of the multi-chamber lightning arrester. A shock-absorbing component is provided between the grounding plate and the auxiliary plate. When the lightning wave intensity is relatively large, the vibration energy caused by the lightning strike can be effectively absorbed and dispersed through the anti-deformation and elastic properties of the shock-absorbing component, thereby improving the seismic resistance of the multi-chamber lightning arrester, thereby reducing the probability of failure when the lightning wave intensity is relatively large, enhancing the stability and safety of the multi-chamber lightning arrester, and being suitable for various high-voltage power systems, providing a strong guarantee for the safe operation of the power system; at the same time, the bolt-type lightning arrester drainage clamp is adopted to enhance the elastic performance between the clamp and the cable, and cooperate with the shock-absorbing component to further improve the seismic resistance of the multi-chamber lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is an enlarged view of point A of the present utility model.

[0018] In the figure: 1. grounding assembly; 11. grounding plate; 12. auxiliary plate; 13. bolt assembly; 2. supporting insulator; 3. lightning arrester assembly; 31. lightning arrester body; 32. arc extinguishing chamber; 33. umbrella skirt; 4. electrode plate; 5. wire clamp; 6. electrode sleeve; 7. shock absorber. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] refer to Figure 1-2 A multi-chamber lightning arrester comprises a grounding component 1, on which a supporting insulator 2 and a lightning arrester component 3 are fixedly provided, an electrode plate 4 and a wire clamp 5 are connected to the top of the supporting insulator 2, an electrode sleeve 6 is connected to the top of the lightning arrester component 3, a discharge gap is formed between the electrode plate 4 and the electrode sleeve 6, and is used to guide the current to discharge safely when a lightning strikes. The grounding component 1 comprises a grounding plate 11, and an auxiliary plate 12 is provided at the bottom of the grounding plate 11. The supporting insulator 2 penetrates one side of the grounding plate 11 and is connected to one side of the auxiliary plate 12. The other side of the grounding plate 11 and the other side of the auxiliary plate 12 are fixed by a bolt assembly 13, and a gap is provided between the two. A shock absorbing member 7 is provided in the gap, which can absorb and reduce the vibration generated by the lightning arrester during operation; the shock absorbing member 7 can be made of a glass fiber steel sheet, which has good elasticity and toughness, can effectively absorb the impact force when subjected to force, and reduce the vibration transmitted to other components of the lightning arrester, thereby achieving the purpose of shock absorption and improving the overall stability and service life.

[0021] The bottom surface of the other side of the grounding plate 11 and the top surface of the auxiliary plate 12 are both provided with mounting grooves, the cross section of the mounting grooves is T-shaped, and shock absorbers 7 are provided in the two mounting grooves, and the cross section of the shock absorbers 7 is I-shaped; the shock absorbers 7 can be embedded in the two mounting grooves to improve the connection strength between the shock absorbers 7 and the grounding plate 11 and the auxiliary plate 12. The shock absorbers 7 can be triangular blocks adapted to the gap, and the shape of the triangular blocks can improve the anti-torsion performance of the grounding plate 11 and the auxiliary plate 12 in the plane direction, and improve the anti-seismic performance in the plane direction.

[0022] The lightning protection assembly 3 includes a lightning protection body 31, an arc extinguishing chamber 32, and an umbrella skirt 33. The bottom of the lightning protection body 31 is fixedly connected to the grounding plate 11, and the top of the lightning protection body 31 is provided with an electrode sleeve 6. At least three umbrella skirts 33 are evenly spaced on the lightning protection body 31, and at least three arc extinguishing chambers 32 are provided between two adjacent umbrella skirts 33. At least one arc extinguishing chamber 32 is provided at the bottom and top of the umbrella skirt 33 and the lightning protection body 31, which can extinguish arcs and disperse current during discharge.

[0023] In some embodiments, the wire clamp 5 is a bolt-type lightning arrester drainage wire clamp, which is convenient for installation and maintenance, can enhance the elastic performance between the wire clamp 5 and the cable, can remain stable under current shock, reduce poor contact caused by vibration, and can cooperate with the shock absorber 7 to further enhance the seismic resistance of the multi-chamber lightning arrester.

[0024] In some embodiments, mounting holes are provided on the other side of the grounding plate 11 and the other side of the auxiliary plate 12. The mounting holes are waist-shaped holes, which are convenient for adjustment during installation of the multi-chamber arrester.

[0025] In some embodiments, the electrode plate 4 is L-shaped, with one end connected to the top of the supporting insulator 2 and the other end provided with an arc toward the electrode sleeve 6, which can increase the discharge area at both ends of the discharge gap and improve the drainage effect.

[0026] The specific working principle is as follows:

[0027] When lightning strikes a high-voltage power line, the overvoltage of the high-voltage power line is guided to the electrode sleeve 6 by the wire clamp 5 and the electrode plate 4. When the overvoltage breaks through the discharge gap between the electrode plate 4 and the electrode sleeve 6, the arc extinguishing chamber 32 can convert the large arc generated by the high-power lightning overvoltage into a large number of small arcs, which are then discharged into the surrounding air by the arc extinguishing chamber 32 between two adjacent electrodes. The overvoltage is introduced into the underground through the grounding plate 11 to complete the lightning protection work; when the overvoltage breaks through the discharge gap between the electrode plate 4 and the electrode sleeve 6, the supporting insulator 2 and the lightning protection assembly 3 will vibrate, driving the grounding plate 11, and the auxiliary plate 12 provides auxiliary support. The shock absorbing member 7 between the grounding plate 11 and the auxiliary plate 12 will absorb and disperse the vibration energy caused by the lightning strike, thereby achieving the purpose of shock reduction, providing a strong guarantee for the safe operation of the power system.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-chamber lightning arrester, comprising a grounding assembly (1), on which a support insulator (2) and a lightning arrester assembly (3) are fixedly mounted, characterized in that: The top of the supporting insulator (2) is connected to an electrode plate (4) and a wire clamp (5); the top of the lightning protection assembly (3) is connected to an electrode sleeve (6); a discharge gap is formed between the electrode plate (4) and the electrode sleeve (6); the grounding assembly (1) comprises a grounding plate (11); an auxiliary plate (12) is provided at the bottom of the grounding plate (11); the supporting insulator (2) penetrates one side of the grounding plate (11) and is connected to one side of the auxiliary plate (12); the other side of the grounding plate (11) and the other side of the auxiliary plate (12) are fixed by a bolt assembly (13); a gap is provided between the two; a shock absorbing member (7) is provided in the gap.

2. A multi-chamber lightning arrester according to claim 1, characterized in that: The bottom surface of the other side of the grounding plate (11) and the top surface of the auxiliary plate (12) are both provided with mounting grooves, and the shock absorbing components (7) are provided in the two mounting grooves.

3. A multi-chamber lightning arrester according to claim 2, characterized in that: The cross section of the installation groove is T-shaped, and the cross section of the shock absorbing member (7) is I-shaped.

4. A multi-chamber lightning arrester according to claim 1, characterized in that: The shock absorbing member (7) is made of a glass fiber steel sheet.

5. A multi-chamber lightning arrester according to claim 4, characterized in that: The wire clamp (5) is a bolt-type lightning arrester drainage wire clamp.

6. A multi-chamber lightning arrester according to claim 1, characterized in that: The other side of the grounding plate (11) and the other side of the auxiliary plate (12) are both provided with mounting holes, and the mounting holes are waist-shaped holes.

7. A multi-chamber lightning arrester according to claim 1, characterized in that: The lightning protection assembly (3) comprises a lightning protection body (31), an arc extinguishing chamber (32), and an awning (33); the bottom of the lightning protection body (31) is fixedly connected to the grounding plate (11); the top of the lightning protection body (31) is provided with the electrode sleeve (6); at least three awnings (33) are evenly spaced on the lightning protection body (31); and at least three arc extinguishing chambers (32) are provided between two adjacent awnings (33).

8. A multi-chamber lightning arrester according to claim 7, characterized in that: At least one arc extinguishing chamber (32) is provided at the bottom and top of the umbrella skirt (33) and the lightning protection body (31).

9. A multi-chamber lightning arrester according to claim 1, characterized in that: The electrode plate (4) is L-shaped, one end of which is connected to the top of the supporting insulator (2), and the other end of which is provided with an arc facing the electrode sleeve (6).

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