Semiconductor anti-thunder ice combined porcelain insulator

Abstract

The utility model discloses a semiconductor anti-thunder ice combined porcelain insulator, and belongs to the field of porcelain insulators. A semiconductor anti-thunder ice combined porcelain insulator comprises a column type porcelain insulator and an anti-thunder ice cover, the two ends of the column type porcelain insulator are connected with an upper accessory and a steel cap through an adhesive, the outer surface of the anti-thunder ice cover is coated with a metal oxide semiconductor glaze layer, and the anti-thunder ice cover is connected to the column type porcelain insulator in a sliding mode; the buffer spring and the damping assembly are arranged at the bottom of the lightning protection ice cover, and the damping assembly is sleeved with the buffer spring. According to the utility model, through the lightning protection ice cover which is arranged in a split manner, when the lightning protection ice cover is damaged, the lightning protection ice cover can be replaced by dismounting the upper accessory, so that the situation that the combined porcelain insulator cannot provide a lightning protection and ice protection function to affect power transmission when the lightning protection ice cover is damaged is prevented; and the service lives of the components except the lightning protection ice cover of the combined porcelain insulator are prolonged, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of porcelain insulators, in particular to a semiconductor lightning protection and ice combined porcelain insulator. Background Art

[0002] Porcelain insulators are a key engineering material used in power systems. Their main function is to support and isolate wires in electrical equipment to prevent current loss and electrical breakdown between different potentials. They are widely used in transmission and distribution lines of various voltage levels. The main features of porcelain insulators: Good insulation performance: Porcelain insulators have high insulation resistance and can effectively isolate wires under high voltage to prevent arcing and electrical breakdown. High mechanical strength: The mechanical strength provided by the porcelain material ensures the stability of the insulator under natural conditions such as wind, sun, ice and snow, as well as during operation. Long service life: Porcelain insulators usually have a long service life. Under normal circumstances, they can withstand decades of operation. Resistant to climate change: Porcelain insulators have good resistance to natural factors such as temperature changes, humidity and ultraviolet rays, ensuring their reliability under various climatic conditions. Flexible assembly: Porcelain insulators can be easily assembled with hardware and wires, and are easy to adjust and position during installation. Convenient operation and maintenance: Although porcelain insulators have good durability, they still need regular inspection and maintenance during operation to ensure that they are in good condition.

[0003] After searching, the utility model patent with Chinese patent number CN215577944U discloses a semiconductor lightning protection ice combined porcelain insulator, which is composed of a lightning protection ice cover and a ceramic column insulator. The lightning protection ice cover is coated with a metal oxide semiconductor glaze, which is formed by adding a certain amount (about 30%-35%) of conductive metal oxides tin, nickel, and chromium to ordinary electric porcelain glaze. The lightning protection ice cover has special performance of electric energy thermal conductivity, and the surface resistivity is 100-110Ω, which is between the insulator and the conductor. The heat generated by the current of the empty line is 25℃-30℃ at normal temperature, and the surface voltage heat is evenly distributed. Snow and rain cannot stay, and the surface of the needle cover is always kept dry. Therefore, the insulator has a special structure with high insulation, high pollution resistance, high strength, and high durability, which can improve the effective value of the withstand voltage of ice, snow and rainstorms, and ensure the reliability of power transmission safety of the power grid line.

[0004] However, the lightning protection ice cover and the column porcelain insulator of this patent are an integrated structure. When the lightning protection ice cover is damaged, the lightning protection ice cover cannot be replaced. In addition, since the lightning protection ice cover is an integrated structure, its position is fixed and cannot cushion the impact of objects such as hail, which affects the service life of the lightning protection ice cover. Based on this, a semiconductor lightning protection ice combined porcelain insulator is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the lightning protection ice cover and the column porcelain insulator are an integrated structure in the prior art, and when the lightning protection ice cover is damaged, the lightning protection ice cover cannot be replaced, and because the lightning protection ice cover is an integrated structure, its position is fixed and cannot buffer the impact of objects such as hail, thus affecting the service life of the lightning protection ice cover, and a semiconductor lightning protection ice combined porcelain insulator is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A semiconductor lightning protection and ice combined porcelain insulator comprises a column porcelain insulator and a lightning protection ice cover, wherein the two ends of the column porcelain insulator are connected with an upper attachment and a steel cap by adhesive, and the outer surface of the lightning protection ice cover is coated with a metal oxide semiconductor glaze layer, and further comprises: the lightning protection ice cover is slidably connected to the column porcelain insulator; a buffer spring and a damping assembly are arranged at the bottom of the lightning protection ice cover, and the buffer spring is sleeved on the damping assembly, wherein the bottom of the lightning protection ice cover is fixedly connected with a fixing ring, the outer surface of the column porcelain insulator is bonded with a bonding plate, and the two ends of the buffer spring and the damping assembly are respectively fixedly connected with the fixing ring and the bonding plate.

[0008] Preferably, the damping assembly includes a piston chamber fixedly connected to the top of the bonding plate, a piston plate slides inside the piston chamber, the top of the piston plate is fixedly connected to the bottom of the fixing ring, and the buffer spring is sleeved outside the piston chamber.

[0009] Furthermore, the piston plate is configured to be hollow, and a plurality of air inlets are provided on the side wall of the piston cavity.

[0010] In order to spray air toward the outer surface of the lightning protection ice cover and blow away impurities such as ice chips on the outer surface of the lightning protection ice cover, it further includes an air pipe fixedly connected to the fixing ring, wherein the top of the lightning protection ice cover is fixedly connected to a jet ring, the outer surface of the jet ring is provided with jet holes, and the air pipe is connected to the jet ring.

[0011] Furthermore, a through hole is provided on the fixing ring, and one end of the through hole is connected to the hollow portion of the piston plate, and the other end of the through hole is connected to the air pipe.

[0012] Furthermore, the jet holes are arranged in a ring array and are inclined, and the inclined jet holes are on the same plane as the outer surface of the lightning protection ice cover.

[0013] Compared with the prior art, the utility model provides a semiconductor lightning protection ice combined porcelain insulator, which has the following beneficial effects:

[0014] 1. The semiconductor lightning protection and ice combined porcelain insulator has a separately arranged lightning protection ice cover. When the lightning protection ice cover is damaged, the lightning protection ice cover can be replaced by removing the upper accessories to prevent the combined porcelain insulator from being unable to provide lightning protection and ice protection functions when the lightning protection ice cover is damaged, thereby affecting the transmission of electricity. The service life of the components of the combined porcelain insulator other than the lightning protection ice cover is extended, saving resources.

[0015] 2. The semiconductor lightning protection ice combined porcelain insulator, through the coordinated use of the buffer spring and the damping component, when the lightning protection ice cover is hit, the buffer spring will be compressed and the damping component will work at the same time, thereby buffering and absorbing the impact force of the lightning protection ice cover, changing the hard impact of the lightning protection ice cover into a flexible impact, providing good protection for the lightning protection ice cover and extending the service life of the lightning protection ice cover.

[0016] 3. The semiconductor lightning protection ice combined porcelain insulator, through the sliding of the piston plate in the piston cavity, will cause the jet hole to produce a jet effect toward the outer surface of the lightning protection ice cover, and because the inclination direction of the jet hole is on the same plane as the outer surface of the lightning protection ice cover, the ejected gas will clean the outer surface of the lightning protection ice cover to prevent impurities attached to the outer surface of the lightning protection ice cover from corroding the lightning protection ice cover, thereby further protecting the lightning protection ice cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of a semiconductor lightning protection ice combined porcelain insulator proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of a semiconductor lightning protection ice combined porcelain insulator proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a partially cutaway structure of a semiconductor lightning protection ice combined porcelain insulator proposed by the utility model;

[0020] Figure 4 A semiconductor lightning protection ice combined porcelain insulator proposed by the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 The utility model provides a schematic diagram of the three-dimensional structure of the bottom of a lightning protection ice cover of a semiconductor lightning protection ice combined porcelain insulator.

[0022] In the figure: 1. Upper accessories; 2. Adhesive; 3. Lightning protection ice cover; 4. Column porcelain insulator; 5. Steel cap; 6. Metal oxide semiconductor glaze layer; 7. Jet ring; 8. Fixed ring; 9. Piston plate; 10. Piston cavity; 11. Air inlet; 12. Buffer spring; 13. Bonding plate; 14. Air pipe; 15. Jet hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Example:

[0026] Reference Figure 1-Figure 5 , a semiconductor lightning protection ice combined porcelain insulator, comprising a column porcelain insulator 4 and a lightning protection ice cover 3, wherein both ends of the column porcelain insulator 4 are connected with an upper attachment 1 and a steel cap 5 through an adhesive 2, and the outer surface of the lightning protection ice cover 3 is coated with a metal oxide semiconductor glaze layer 6;

[0027] The metal oxide semiconductor glaze layer 6 is a thermal conductor glaze with special properties for high-voltage electromagnetics, and its surface resistivity is between that of an insulator and a conductor. The glaze is usually formed by adding 30%-35% of conductive metal oxides tin, nickel and chromium to ordinary electrical porcelain glaze, wherein the proportions of tin, nickel and chromium can be arbitrary. Conductivity is obtained when the conductor crystals form a polymer network. The functional relationship between the resistance of the glaze and the conductor content shows an S-shaped curve, and the difference in conductivity depends on the shape of the particles and their distribution in the glaze. The formed microstructure is different from that of ordinary glazes. In addition to a large amount of glass phase and a small amount of bubbles, the semiconductor glaze also contains various forms of conductive crystals or solid solutions. These conductive phases run through the glass matrix to form an uninterrupted conductive network. Tin oxide, nickel and chromium glazes are currently considered to be the best semiconductor metal glazes;

[0028] Characteristics of metal oxide semiconductor glaze: The conductivity of semiconductors is between conductors and insulators; when semiconductors are stimulated by external light and heat, their conductivity will change significantly; adding trace amounts of impurities to pure semiconductors will dramatically increase their conductivity; they have high cold lightning and ice protection capabilities, can maintain a relatively high flashover current, and ensure good insulation effects.

[0029] Reference Figure 2-Figure 5 , and also includes: a lightning protection ice cover 3 is slidably connected to the column porcelain insulator 4, and they are always in contact with each other; a buffer spring 12 and a damping assembly are arranged at the bottom of the lightning protection ice cover 3, and the buffer spring 12 is sleeved on the damping assembly, wherein a fixing ring 8 is fixedly connected to the bottom of the lightning protection ice cover 3, and a bonding plate 13 is bonded to the outer surface of the column porcelain insulator 4, and both ends of the buffer spring 12 and the damping assembly are respectively fixedly connected to the fixing ring 8 and the bonding plate 13, and the damping assembly includes a piston chamber 10 fixedly connected to the top of the bonding plate 13, and a piston plate 9 is slidably provided inside the piston chamber 10, and the top of the piston plate 9 is fixedly connected to the bottom of the fixing ring 8, and the buffer spring 12 is sleeved on the outside of the piston chamber 10.

[0030] When the lightning protection ice cover 3 is hit, the impact force will cause the lightning protection ice cover 3 to slide downward, thereby compressing the buffer spring 12 and causing the piston plate 9 to slide downward along the inside of the piston cavity 10, so that the buffer spring 12 and the piston plate 9 and the piston cavity 10 buffer and absorb the impact on the lightning protection ice cover 3;

[0031] The impact force on the lightning protection ice cover 3 is buffered and absorbed, and the hard impact on the lightning protection ice cover 3 is changed into a flexible impact, so that the lightning protection ice cover 3 is well protected and the service life of the lightning protection ice cover 3 is extended;

[0032] When the lightning protection ice cover 3 is damaged after long-term use, the lightning protection ice cover 3 can be removed by removing the upper attachment 1;

[0033] When the lightning protection ice cover 3 is damaged, the combined porcelain insulator cannot provide the lightning protection and ice protection functions, affecting the transmission of power, and prolonging the service life of the components of the combined porcelain insulator except the lightning protection ice cover 3, saving resources.

[0034] Reference Figure 3-Figure 5The piston plate 9 is set to be hollow, and the side wall of the piston chamber 10 is provided with multiple air inlets 11, and also includes an air pipe 14 fixedly connected to the fixing ring 8, wherein the top of the lightning protection ice cover 3 is fixedly connected with the jet ring 7, and the outer surface of the jet ring 7 is provided with a jet hole 15, the air pipe 14 is connected with the jet ring 7, and a through hole is provided on the fixing ring 8, and one end of the through hole is connected with the hollow part of the piston plate 9, and the other end is connected with the air pipe 14, the jet holes 15 are arranged in a ring array, and the jet holes 15 are inclined, and the inclined jet holes 15 are on the same plane as the outer surface of the lightning protection ice cover 3.

[0035] When the lightning protection ice cover 3 is hit, the piston plate 9 slides up and down, which will cause the gas in the piston chamber 10 to enter the jet ring 7 through the hollow piston plate 9, the through hole and the gas pipe 14, and then blow to the outer surface of the lightning protection ice cover 3 through the jet hole 15;

[0036] Since the inclination direction of the jet hole 15 is on the same plane as the outer surface of the lightning protection ice cover 3, the ejected gas will clean the outer surface of the lightning protection ice cover 3 to prevent impurities attached to the outer surface of the lightning protection ice cover 3 from corroding the lightning protection ice cover 3, thereby further protecting the lightning protection ice cover 3.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A semiconductor lightning protection ice combined porcelain insulator, comprising a column porcelain insulator (4) and a lightning protection ice cover (3), wherein the two ends of the column porcelain insulator (4) are connected to an upper attachment (1) and a steel cap (5) by means of an adhesive (2), and the outer surface of the lightning protection ice cover (3) is coated with a metal oxide semiconductor glaze layer (6), characterized in that: Also includes: The lightning protection ice cover (3) is slidably connected to the column porcelain insulator (4); A buffer spring (12) and a damping assembly are arranged at the bottom of the lightning protection ice cover (3), and the buffer spring (12) is sleeved on the damping assembly. The bottom of the lightning protection ice cover (3) is fixedly connected to a fixing ring (8), the outer surface of the column porcelain insulator (4) is bonded to a bonding plate (13), and both ends of the buffer spring (12) and the damping assembly are respectively fixedly connected to the fixing ring (8) and the bonding plate (13).

2. A semiconductor lightning protection ice combined porcelain insulator according to claim 1, characterized in that: The damping assembly comprises a piston chamber (10) fixedly connected to the top of a bonding plate (13), a piston plate (9) slidingly arranged inside the piston chamber (10), the top of the piston plate (9) being fixedly connected to the bottom of a fixing ring (8), and the buffer spring (12) being sleeved on the outside of the piston chamber (10).

3. A semiconductor lightning protection ice combined porcelain insulator according to claim 2, characterized in that: The piston plate (9) is configured to be hollow, and a plurality of air inlets (11) are provided on the side wall of the piston chamber (10).

4. A semiconductor lightning protection ice combined porcelain insulator according to claim 3, characterized in that: It also includes an air delivery pipe (14) fixedly connected to the fixing ring (8), The top of the lightning protection ice cover (3) is fixedly connected to a jet ring (7), the outer surface of the jet ring (7) is provided with jet holes (15), and the air delivery pipe (14) is connected to the jet ring (7).

5. The semiconductor lightning protection ice combined porcelain insulator according to claim 4 is characterized in that: The fixing ring (8) is provided with a through hole, one end of which is connected to the hollow part of the piston plate (9), and the other end of which is connected to the air delivery pipe (14).

6. The semiconductor lightning protection ice combined porcelain insulator according to claim 4 is characterized in that: The jet holes (15) are arranged in a ring array, and the jet holes (15) are arranged obliquely, and the obliquely arranged jet holes (15) are on the same plane as the outer surface of the lightning protection ice cover (3).

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