Novel pneumatic load switch for ring main unit

Abstract

The utility model relates to the technical field of high-voltage switch equipment, in particular to a novel pneumatic load switch for a ring main unit. According to the technical scheme, the air compression type load switch comprises an air compression type load switch body and further comprises a pair of filter boxes installed on the air compression type load switch body, and the filter boxes are internally provided with filter mechanisms used for adsorbing dust and water vapor in air in the ring main unit. Through cooperation of the filter box, the dust filter plate, the moisture absorption bag, the filter mechanism, the air suction mechanism and other structures, dust in the ring main unit can be effectively filtered and prevented from directly entering the switch equipment, and the risk that the switch equipment is damaged by the dust is reduced. Meanwhile, water vapor in the ring main unit can be adsorbed, corrosion of the impurities to switch equipment is reduced, and the service life of the equipment is prolonged. And finally, the filter box can effectively collect dust and water vapor, so that the cleaning frequency and workload in the ring main unit are reduced, and the maintenance and management of the equipment are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switchgear, in particular to a novel compressed air load switch for a ring network cabinet. Background Art

[0002] Ring main unit is a device used in power distribution system, mainly used in power distribution networks in cities, industrial and mining enterprises, residential areas and other places. It is usually used to distribute high-voltage transmission lines to different low-voltage users or loads. Ring main unit consists of multiple modules, including load switches, circuit breakers, disconnectors, power meters, etc. They are installed in a box and provide the function of centralized control and protection of the power distribution system, and compressed air load switch is a protection device commonly used in power systems. Some of the current ring main units are affected by the installation environment, resulting in not only a large amount of dust particles but also a lot of water vapor in the cabinet. These dust particles accumulate inside the switch, which may cause short circuits between electrical components and increase the risk of electric shock. Water vapor will cause the electrical components in the switch to rust, thereby reducing the service life. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes a novel compressed air load switch for ring network cabinet.

[0004] The technical solution of the utility model is as follows: a novel compressed air load switch for a ring network cabinet, comprising a compressed air load switch body, and also comprising: a pair of filter boxes installed on the compressed air load switch body, the interior of the filter box is provided with a filter mechanism for adsorbing dust and water vapor in the air in the ring network cabinet; a suction mechanism fixedly connected to the filter box for accelerating the air in the ring network cabinet to flow into the filter box; the filter mechanism also includes a second jack opened on the filter box, the interior of the second jack is slidably connected with a second plug-in frame, a plurality of pairs of linearly arranged clamping blocks are fixedly connected to the second plug-in frame, a hook is provided inside the second plug-in frame, and a moisture-absorbing bag for being clamped by the clamping block and adsorbing water vapor in the air passing through the filter box is movably hung at the bottom of the hook.

[0005] Optionally, the filtering mechanism includes a first socket provided on the filter box, a first insertion frame is slidably connected to the interior of the first socket, a mounting groove is provided on the first insertion frame, and a dust filter plate for filtering dust in the air passing through the filter box is movably placed inside the mounting groove.

[0006] Optionally, a clamping block for clamping the dust filter plate in the installation slot to prevent the dust filter plate from arbitrarily falling out of the installation slot is provided on the first insertion frame.

[0007] Optionally, the filter box is provided with a groove connected with the first plug hole and the second plug hole, and a connecting block fixedly connected with the first plug frame and the second plug frame is movably provided inside the groove, and a handle is fixedly connected to the connecting block.

[0008] Optionally, the air suction mechanism includes a fan mechanism connected to the filter box, and a guide cover is fixedly connected to the fan mechanism.

[0009] Optionally, a plurality of linearly arranged air holes are formed at one end of the filter box away from the fan mechanism.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] The utility model utilizes the cooperation of structures such as a filter box, a dust filter plate, a moisture absorption bag, a filter mechanism, and an air suction mechanism, which can not only effectively filter the dust inside the ring network cabinet, prevent them from directly entering the switchgear, and reduce the risk of damage to the switchgear caused by dust. At the same time, it can also adsorb water vapor in the ring network cabinet, reduce the corrosion of these impurities to the switchgear, and extend the service life of the equipment. Finally, the filter box can also effectively collect dust and water vapor, reduce the cleaning frequency and workload inside the ring network cabinet, and thus simplify the maintenance and management of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the structure of a new type of compressed air load switch for a ring main unit is given;

[0013] Figure 2 for Figure 1 Structural schematic diagram of the dust removal mechanism and the dehumidification mechanism;

[0014] Figure 3 for Figure 2 Schematic diagram of the split structure;

[0015] Figure 4 for Figure 3 Schematic diagram of the split structure;

[0016] Figure 5 for Figure 4 Schematic diagram of part of the structure.

[0017] Figure numerals: 1. compressed air load switch body; 2. filter box; 21. first plug hole; 22. second plug hole; 23. groove; 24. first plug frame; 25. mounting slot; 26. block; 27. second plug frame; 28. connecting block; 29. ​​clamping block; 291. moisture-absorbing bag; 292. hook; 293. handle; 294. dust filter plate; 295. air vent; 3. fan mechanism; 31. guide cover. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] like Figure 1-5 As shown, the utility model proposes a new type of compressed air load switch for ring network cabinet, including a compressed air load switch body 1, and also includes: a pair of filter boxes 2 installed on the compressed air load switch body 1, and a plurality of linearly arranged air holes 295 are opened at one end of the filter box 2 away from the fan mechanism 3, and the function of the air holes 295 is to allow the air passing through the filter box 2 to pass. The filter box 2 is provided with a filter mechanism for adsorbing dust and water vapor in the air in the ring network cabinet; a suction mechanism fixedly connected to the filter box 2 is used to accelerate the air in the ring network cabinet to flow into the filter box 2, and the suction mechanism includes a fan mechanism 3 connected to the filter box 2, and the fan mechanism 3 is a fan. The reason why the fan can generate suction is mainly due to the working principle of the fan and the influence of airflow dynamics. When the fan is running, it will generate airflow through rotating blades, and the generated airflow will cause the air pressure around the gas to decrease, thereby forming a suction effect. A guide cover 31 is fixedly connected to the fan mechanism 3, and the guide cover 31 can help guide the airflow entering the fan or ventilation equipment, and effectively concentrate the airflow on the fan blades, thereby improving the utilization efficiency of wind power.

[0026] Furthermore, the filtering mechanism includes a first socket 21 provided on the filter box 2, the interior of the first socket 21 is slidably connected with a first plug-in frame 24, the first plug-in frame 24 is provided with a block 26 for clamping the dust filter plate 294 in the mounting groove 25 to prevent it from arbitrarily falling out of the mounting groove 25, the first plug-in frame 24 is provided with a mounting groove 25, the interior of the mounting groove 25 is movably provided with a dust filter plate 294 for filtering dust in the air passing through the filter box 2, the dust filter plate 294 is made of a grid structure dust filter plate, and the grid structure dust filter plate adopts a grid structure made of metal or plastic and other materials, and has ventilation pores, which can allow air to pass smoothly and achieve a filtering effect at the same time.

[0027] Secondly, the filtering mechanism also includes a second plug hole 22 opened on the filter box 2, and a second plug frame 27 is slidably connected inside the second plug hole 22. A plurality of pairs of clamping blocks 29 arranged linearly are fixedly connected to the second plug frame 27. A hook 292 is provided inside the second plug frame 27. The function of the hook 292 is to facilitate the disassembly and assembly of the moisture absorbing bag 291. The bottom of the hook 292 is movably hung with a moisture absorbing bag 291 for being stuck by the clamping block 29 and absorbing the water vapor in the air passing through the filter box 2. The moisture absorbing bag 291 is a common product for absorbing moisture in the air, also known as a dehumidification bag or desiccant. Its main function is to absorb excess moisture in the surrounding environment and prevent the occurrence of moisture and other problems.

[0028] Furthermore, the filter box 2 is provided with a groove 23 connected to the first hole 21 and the second hole 22. The interior of the groove 23 is movably provided with a connecting block 28 fixedly connected to the first insertion frame 24 and the second insertion frame 27. A handle 293 is fixedly connected to the connecting block 28. The function of the handle 293 is to form a shape that conforms to the principles of ergonomics, so that people can hold and operate the equipment easily and provide a good hand feel and grip.

[0029] In this embodiment, when the new ring main unit needs to use a compressed air load switch, Figure 1 As shown, after the compressed air load switch is installed inside the ring main unit, the fan mechanism 3 is started to blow the air inside the ring main unit to the filter box 2 through the guide cover 31, and the air is first filtered by the dust filter plate 294 installed in the mounting groove 25 on the first plug-in frame 24, so that large particles of dust are filtered by the dust filter plate 294, and the filtered air then passes through the moisture absorption bag 291 provided at the bottom of the hook 292 in the second plug-in frame 27, so that the water vapor in the air is absorbed by the moisture absorption bag 291, and then through the long-term continuous operation of the fan mechanism 3, the dust and water vapor in the air inside the ring main unit are completely filtered by the filter mechanism, which is convenient and quick. When it is necessary to replace and clean the dust filter plate 294 on the first insertion frame 24 and the moisture absorption bag 291 in the second insertion frame 27, it is only necessary to pull the handle 293 away from the filter box 2, and the handle 293 will be disengaged from the groove 23 and drive the first insertion frame 24 and the second insertion frame 27 to be disengaged from the first insertion hole 21 and the second insertion hole 22, and then the dust filter plate 294 and the moisture absorption bag 291 can be replaced and cleaned, which is simple and easy to operate.

[0030] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel compressed air load switch for a ring main unit, comprising a compressed air load switch body (1), characterized in that: Also includes: A pair of filter boxes (2) mounted on the compressed air load switch body (1), wherein the filter boxes (2) are provided with a filter mechanism for absorbing dust and water vapor in the air in the ring network cabinet; An air suction mechanism fixedly connected to the filter box (2) and used to accelerate the air in the ring main cabinet to flow into the filter box (2); The filtering mechanism further comprises a second plug hole (22) provided on the filter box (2); a second plug frame (27) is slidably connected to the interior of the second plug hole (22); a plurality of pairs of clamping blocks (29) arranged linearly are fixedly connected to the second plug frame (27); a hook (292) is provided inside the second plug frame (27); a moisture absorbing bag (291) is movably hung at the bottom of the hook (292) for being clamped by the clamping block (29) and absorbing water vapor in the air passing through the filter box (2).

2. A new type of compressed air load switch for ring main unit according to claim 1, characterized in that: The filtering mechanism comprises a first plug hole (21) provided on the filter box (2), a first plug frame (24) being slidably connected inside the first plug hole (21), a mounting groove (25) being provided on the first plug frame (24), and a dust filter plate (294) for filtering dust in the air passing through the filter box (2) being movably placed inside the mounting groove (25).

3. A new type of compressed air load switch for ring main unit according to claim 2, characterized in that: The first insertion frame (24) is provided with a clamping block (26) for clamping the dust filter plate (294) in the installation slot (25) to prevent the dust filter plate (294) from arbitrarily falling out of the installation slot (25).

4. A new type of compressed air load switch for ring main unit according to claim 1, characterized in that: The filter box (2) is provided with a groove (23) communicating with the first plug hole (21) and the second plug hole (22); a connecting block (28) fixedly connected to the first plug frame (24) and the second plug frame (27) is movably provided inside the groove (23); a handle (293) is fixedly connected to the connecting block (28).

5. A new type of compressed air load switch for ring main unit according to claim 1, characterized in that: The air suction mechanism comprises a fan mechanism (3) connected to the filter box (2), and a guide cover (31) is fixedly connected to the fan mechanism (3).

6. A new type of compressed air load switch for ring main unit according to claim 1, characterized in that: A plurality of linearly arranged air holes (295) are provided at one end of the filter box (2) away from the fan mechanism (3).

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