Static electricity removing device for insulating spacer

Abstract

The invention relates to an insulation basin static electricity removing device which comprises a handheld frame, a long-strip-shaped ion generator is fixedly installed on the handheld frame, and a plurality of discharge electrodes arranged in the length direction of the long-strip-shaped ion generator are arranged in the long-strip-shaped ion generator so that a blowing air curtain can be formed on one side of the long-strip-shaped ion generator in the width direction when the device is used. One end of the long-strip-shaped ion generator in the length direction is further connected with a power line used for being connected with an external power source. The static electricity removing device for the insulating spacer is simple in structure and convenient to use, and can solve the problem that static charges in partial areas cannot be completely removed due to the fact that it is difficult to guarantee that the surface of the insulating spacer can be completely blown without omission when a static electricity removing device in the prior art is used. And accidents caused by insulation failure of the system when surface flashover occurs are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of static eliminators, and particularly to a static eliminator for an insulating basin. Background Art

[0002] Gas-insulated metal-enclosed switchgear is a metal-enclosed switchgear and control equipment that at least partially uses gas pressure higher than atmospheric pressure as the insulating medium, hereinafter referred to as GIS. It assembles all electrical equipment in a substation except for transformers, including circuit breakers, disconnectors, earthing switches, voltage transformers, current transformers, busbars, etc. in a metal enclosure and fills it with 0.4 - 0.5 Mpa of SF 6 gas to achieve reliable insulation of high-voltage conductors to the enclosure, between phases, and between breaker contacts.

[0003] GIS belongs to a composite insulation system composed of solids and gases. When a certain voltage is applied to the insulation system, discharge always occurs first at the solid-gas interface, that is, surface discharge. As the voltage further increases, the surface discharge can develop into a through-breakdown, called surface flashover. When surface flashover occurs, the insulation of the system fails, often leading to accidents. There are many factors affecting the surface flashover of insulators, and one of the important reasons is that a large amount of static charges exist on the surface of the insulator, resulting in the adsorption of foreign substances on its surface.

[0004] To solve the above problems, in the prior art, for example, a Chinese patent application with the application publication number CN104371133A and the application publication date February 25, 2015, discloses a method for eliminating static charges on the surface of a pot-type insulator in GIS. The invention forms a carbon-fluorine surface layer with a certain thickness on the surface of the epoxy resin, the main material of the pot-type insulator in GIS, after surface fluorination. Fluoride ions have extremely strong electronegativity and can attract electrons, forming a shielding layer on the surface of the epoxy resin, weakening the local electric field on its surface, thereby inhibiting the injection of charges and accelerating the charge dissipation process. Therefore, the charge dissipation process on the surface of the epoxy resin treated by surface fluorination is faster, static charges are difficult to accumulate, and the insulation performance of the insulating basin is enhanced. However, the method used by the invention to eliminate static charges can only achieve the purpose of eliminating static charges under certain conditions, and has certain limitations in use.

[0005] In the prior art, for another example, a Chinese utility model patent with the authorization announcement number CN202958039 and the authorization announcement date of May 29, 2013 discloses a handheld static eliminator and dust remover. The utility model includes a gun-shaped handle. The front end of the gun-shaped handle has a nozzle, and an ion needle is provided inside the nozzle. The rear end of the gun-shaped handle is connected with a high-voltage connector. This utility model can generate a large number of air masses with positive and negative charges, which can neutralize the charges carried on an object to achieve the purpose of eliminating static electricity. However, due to the limited size of the nozzle of this utility model, the size of the ion air mass ejected from the nozzle is limited. When eliminating static electricity from an insulating basin, it is necessary to move the nozzle to eliminate static electricity at each part of the insulating basin. However, when an operator uses this device for operation, it is very difficult to ensure that the surface of the insulating basin is completely blown without omission, resulting in incomplete elimination of static charges in some areas. This may also lead to insulation failure of the system when surface flashover occurs, ultimately resulting in accidents. Summary of the Invention

[0006] The purpose of the present invention is to provide a static eliminator for insulating basins, which is used to solve the problem that it is very difficult to ensure that the surface of the insulating basin is completely blown without omission when using the existing static eliminator, resulting in incomplete elimination of static charges in some areas. This may also lead to insulation failure of the system when surface flashover occurs, ultimately resulting in accidents.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions.

[0008] A static eliminator for insulating basins includes a handheld frame. A long-strip ion generator is fixedly installed on the handheld frame. A plurality of discharge electrodes are arranged along the length direction inside the long-strip ion generator to form a blowing air curtain on one side in the width direction of the long-strip ion generator during use. One end in the length direction of the long-strip ion generator is also connected with a power cord for connecting an external power supply.

[0009] Further, the handheld frame is long-strip-shaped and includes two parallel long-strip mounting plates. The two side surfaces in the thickness direction of the long-strip ion generator are respectively attached to and fixedly installed between the two long-strip mounting plates. The blowing air curtain blows out from the gap between the two long-strip mounting plates.

[0010] Further, the two long-strip mounting plates clamp and fix the long-strip ion generator between the two long-strip mounting plates through bolt assemblies penetrating in the thickness direction.

[0011] Further, a handle for holding is provided on the side of the long-strip mounting plate facing away from the blowing air curtain.

[0012] Further, the long-strip mounting plate is an anti-static PTFE (polytetrafluoroethylene) plate.

[0013] Further, the elongated ion generator uses a tungsten electrode as the discharge electrode.

[0014] Further, multiple discharge electrodes of the elongated ion generator are evenly arranged in the length direction of the elongated ion generator.

[0015] Further, the insulating basin static eliminator is further provided with a static detection device, including a static detection head for detecting static charges and a static display screen for observing the amount of static charges. The static detection head is installed at the other end of the elongated mounting plate in the length direction opposite to the end where the power cord is located.

[0016] Further, the static display screen is installed on the handheld frame near the end where the power cord extends.

[0017] Adopting the above technical solutions, the beneficial effects are as follows: The present invention pioneeringly proposes an insulating basin static eliminator. The insulating basin static eliminator of the present invention includes a handheld frame, on which an elongated ion generator is fixedly installed. The elongated ion generator is provided with a plurality of discharge electrodes arranged along its length direction to form a blowing air curtain on one side in the width direction of the elongated ion generator during use. One end of the elongated ion generator in the length direction is also connected with a power cord for connecting an external power supply. The insulating basin static eliminator of the present invention not only has a simple structure and is convenient for operators to use, but also the large number of ions ejected form an ion air curtain, which can effectively solve the problem that the existing static eliminator in the prior art is difficult to ensure that the surface of the insulating basin can be completely blown without omission during use, resulting in the static charges in some areas not being completely eliminated. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the insulating basin static eliminator of the present invention.

[0019] Figure 2 It is a front view of an embodiment of the insulating basin static eliminator of the present invention.

[0020] Figure 3 It is a top view of an embodiment of the insulating basin static eliminator of the present invention.

[0021] Figure 4 is Figure 2 A cross-sectional view taken at A-A.

[0022] In the figure: 1. Handheld frame; 2. Elongated ion generator; 3. Static detection device; 4. Power cord; 5. External power supply; 6. Handle; 31. Static display screen; 32. Static detection head. Detailed Embodiments

[0023] The features and performance of the present invention will be further described in detail below in conjunction with embodiments.

[0024] For the static eliminator device of the insulating basin of the present invention, by fixedly installing a strip-shaped ion generator on a hand-held frame, a plurality of discharge electrodes arranged along its length direction are provided inside the strip-shaped ion generator. When in use, a blowing air curtain is formed on one side in the width direction of the strip-shaped ion generator. One end in the length direction of the strip-shaped ion generator is provided with a power cord for connecting an external power supply, which expands the range where the ion generator emits ions. When in use, the static eliminator device of the insulating basin is connected to an external power supply, and the side where the strip-shaped ion generator emits ions is aligned with the surface of the insulating basin that needs to eliminate static electricity for purging. In this way, it is not only convenient to use, but also the ion air curtain formed by a large number of ions emitted by the ion generator can effectively eliminate the static charges on the surface of the pot-type insulator, preventing the insulation failure of the system when surface flashover occurs, and ultimately leading to accidents.

[0025] Based on the above concept, the present invention provides various different embodiments of the static eliminator device of the insulating basin for illustration.

[0026] In a basic embodiment, the static eliminator device includes a hand-held frame 1, and a strip-shaped ion generator 2 is fixedly installed on the hand-held frame 1. A plurality of discharge electrodes arranged along its length direction are provided inside the strip-shaped ion generator 2. When in use, a blowing air curtain is formed on one side in the width direction of the strip-shaped ion generator 2. One end in the length direction of the strip-shaped ion generator 2 is connected with a power cord 4 for connecting an external power supply 5. When in use, the power cord 4 is connected to the external power supply 5, and the strip-shaped ion generator 2 can emit a large number of ions and eject them from the gap of the hand-held frame 1 to form an ion air curtain. Aligning the side where the strip-shaped ion generator 2 emits ions with the surface of the insulating basin can conveniently and effectively eliminate the static charges on its surface, preventing the insulation failure of the system when surface flashover occurs, and ultimately leading to accidents.

[0027] On the basis of the above embodiment, the hand-held frame 1 can be provided with a strip-shaped mounting plate, and the strip-shaped ion generator 2 is fixedly installed on the strip-shaped mounting plate of the hand-held frame 1. In a preferred embodiment, as Figure 1 、 3 、shown in Figure 4, the strip-shaped mounting frame 1 is provided with two parallel strip-shaped mounting plates, and the strip-shaped ion generator 2 is fixedly installed between the two strip-shaped mounting plates, and the blowing air curtain blows out from the interval between the two strip-shaped mounting plates.

[0028] On the basis of the above embodiment, both side surfaces in the thickness direction of the strip-shaped ion generator 2 are respectively attached to and adhesively fixed to the strip-shaped mounting plates and installed between the two strip-shaped mounting plates. Preferably, as Figures 1-4As shown, two strip-shaped mounting plates clamp and fix the strip-shaped ion generator 2 between them through a bolt assembly penetrating in the thickness direction, making the overall structure of the insulating basin static eliminator more reliable.

[0029] Based on the above embodiment, when using the insulating basin static eliminator to eliminate the static charges on the surface of the insulating basin, the user holds the handheld frame 1, aligns the ion-emitting side with the surface of the insulating basin, and controls the distance within 10 mm for operation. In another embodiment, a handle 6 for holding can be installed on the strip-shaped mounting plate of the handheld frame 1, and the handle 6 can be held for operation during use, which can facilitate the use of the insulating basin static eliminator. Preferably, as Figure 2 shown, the handle 6 is arranged on the side of the strip-shaped mounting plate of the handheld frame 1 facing away from the blowing air curtain, so that when holding the handle 6, the direction of ion emission of the strip-shaped ion generator 2 is consistent with the direction the user is facing, further facilitating the user to use the insulating basin static eliminator of the present invention.

[0030] Based on the above embodiment, the material of the handheld frame 1 can be plastic or an electromagnetic shielding plate. In a preferred embodiment, the material of the handheld frame 1 is an anti-static PTFE polytetrafluoroethylene plate, so that the wear resistance and surface energy of the handheld frame 1 are increased, and it has anti-static performance, and can also prevent the strip-shaped ion generator 2 from knocking and scratching the surface of the insulating basin.

[0031] Based on the above embodiment, the electrode of the strip-shaped ion generator 2 can be a carbon electrode, an oxide electrode or a semiconductor electrode. In a preferred embodiment, the electrode of the strip-shaped ion generator 2 is a metal electrode, and platinum, gold or silver can be used as the electrode of the strip-shaped ion generator 2. Preferably, tungsten is used as the electrode of the strip-shaped ion generator 2, so that the ion generation of the strip-shaped ion generator 2 is more efficient, and the negative ions generated by using the tungsten electrode are more than the positive ions, and the safety during use is higher.

[0032] Based on the above embodiment, 5 or 10 discharge electrodes can be arranged in the strip-shaped ion generator 2 and are evenly arranged in the length direction of the strip-shaped ion generator 2. In a preferred embodiment, the strip-shaped ion generator 2 is designed with a total of 14 discharge electrodes parallel in the length direction, and the distance between each discharge electrode is 25 mm. In this way, the generated ions are evenly distributed, and the generation of electric arcs is avoided, improving safety.

[0033] Based on the above embodiment, as Figure 1As shown, the anti-static device for the insulating basin of the present invention further includes an electrostatic detection device 3. The electrostatic detection device includes an electrostatic detection head 32 and an electrostatic display screen 31. The electrostatic detection head 32 is arranged at the other end of the handheld frame 1 in the length direction opposite to the end where the power cord 4 is located. The electrostatic display screen 31 can be arranged at any position of the handheld frame 1. Preferably, as Figure 1 shown, the electrostatic display screen 31 is arranged at the end of the handheld frame 1 close to the extension of the power cord 4. Such an arrangement can facilitate the user to view the display screen during use.

[0034] When using the anti-static device for the insulating basin of the present invention, first connect the power cord 4 to an external power supply 5. The input voltage of the external power supply 5 is AC220V, the output voltage is 7KV, and the power is 30W, so that the strip-shaped ion generator 2 starts to work. The user holds the handle 6 on the handheld frame 1, aligns the side of the strip-shaped ion generator 2 emitting ions with the surface of the insulating basin, and controls the distance from the surface to 100mm for purging. After purging, use the electrostatic detection device 3 to detect the static charge amount on the surface of the insulating basin. When detecting, hold the handle 6 and make the electrostatic detection head 32 face the surface of the pot-shaped insulator and detect the static charge amount at a distance of 100mm from the surface. The static charge amount on the surface of the insulating basin can be directly observed on the electrostatic display screen 31. If there are still residual static charges, the present invention can be used again for elimination, which can ensure that the static charge amount on the surface of the insulating basin is eliminated to a relatively low level.

[0035] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.

Claims

1. An insulating basin static removal device, characterized in that: The invention comprises a handheld frame on which a long strip ion generator is fixedly mounted. The long strip ion generator is provided with a plurality of discharge electrodes arranged along its length direction so as to form a spraying air curtain on one side of the long strip ion generator in the width direction when in use. One end of the long strip ion generator in the length direction is also connected with a power cord for connecting an external power supply.

2. The insulating basin static elimination device according to claim 1, characterized in that: The handheld frame is long and strip-shaped, and includes two parallel long and strip-shaped mounting plates. The two side surfaces of the long and strip-shaped ion generator in the thickness direction are respectively attached to the long and strip-shaped mounting plates and fixedly installed between the two long and strip-shaped mounting plates. The spray air curtain is blown out from the gap between the two long and strip-shaped mounting plates.

3. The insulating basin static elimination device according to claim 2, characterized in that: The two long strip mounting plates are used to clamp and fix the long strip ion generator between the two long strip mounting plates by means of a bolt assembly penetrating in the thickness direction.

4. The insulating basin static elimination device according to claim 2, characterized in that: A handle for hand-holding is arranged on the side of the long strip mounting plate facing away from the blowing air curtain.

5. The insulating basin static elimination device according to claim 2, characterized in that: The long strip mounting plate is an antistatic PTFE polytetrafluoroethylene plate.

6. The insulating basin static elimination device according to any one of claims 1 to 5, characterized in that: The strip ion generator uses a tungsten electrode as the discharge electrode.

7. The insulating basin static elimination device according to any one of claims 1 to 5, characterized in that: The plurality of discharge electrodes of the long strip ion generator are evenly arranged in the length direction of the long strip ion generator.

8. The insulating basin static elimination device according to any one of claims 1 to 5, characterized in that: The insulating basin static electricity removal device is also provided with a static electricity detection device, including a static electricity detection head for detecting static charge and a static electricity display screen for observing the static charge quantity. The static electricity detection head is installed at the other end of the long strip installation plate in the length direction opposite to the end where the power line is located.

9. The insulating basin static elimination device according to claim 8, characterized in that: The electrostatic display screen is mounted on the handheld frame near the end where the power cord extends out.

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