A transformer respirator maintenance protection device

Abstract

The present invention belongs to the technical field of electric power equipment, and discloses a transformer respirator maintenance protection device. The transformer respirator maintenance protection device is used to be installed on the breathing tube of the transformer, and a flange is provided at the mouth of the breathing tube, and a mounting hole is provided on the flange, including a breathing bottle and a fixing assembly, and a breathing hole is provided at the bottom of the breathing bottle, and the breathing hole is connected to the bottle mouth of the breathing bottle, and the breathing bottle is filled with hygroscopic material; the fixing assembly is arranged on the bottle mouth of the breathing bottle, and the fixing assembly includes a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate are respectively detachably mounted on both sides of the flange, and the fixing assembly is configured to fix the breathing bottle on the breathing tube so that the breathing bottle is connected to the breathing tube. The internal and external pressure difference of the transformer can be balanced during the maintenance of the transformer respirator, effectively preventing water and impurities in the air from entering the interior of the transformer, improving the insulation effect of the transformer oil, and ensuring the safe operation of the transformer.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to a transformer respirator maintenance protection device. Background Art

[0002] At present, during the operation of the main transformer of the substation, most of the breathers in the transformer body and the on-load switch still use colored silica gel and oil seal cups as moisture absorbing materials. Due to the presence of moisture, dust and other impurities in the air, it will have a great impact on the transformer oil, which may cause the transformer oil insulation to be unqualified. In severe cases, the internal insulation of the transformer will be reduced due to the unqualified transformer oil. Therefore, installing a breather on the transformer can prevent the aging of the insulating oil, and it is also a window for balancing the internal and external pressures of the transformer.

[0003] The silicone inside the transformer's breather will change color when it gets damp, and the oil in the oil seal cup will become turbid after being used for a long time, so they need to be replaced. During the replacement process, the entire breather needs to be disassembled, resulting in the breathing tube being exposed to the air, which can easily cause moisture or other impurities in the capsule inside the transformer. If the capsule is not sealed well, it will cause the transformer oil to mix with moisture or other impurities, affecting the safe operation of the transformer; or during maintenance, the breathing tube is blocked after the breather is disassembled, which can easily lead to a pressure difference between the inside and outside of the transformer. When the internal and external pressures reach a certain value, removing the blockage in the breathing tube can easily cause an instantaneous change in internal pressure, accelerating the oil flow, causing the transformer gas to operate, tripping the running transformer, causing unplanned equipment shutdown, and causing a great impact on the power grid.

[0004] Therefore, a transformer respirator maintenance protection device is needed to solve the problems in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a transformer breather maintenance protection device, which can solve the problem of power grid impact caused by unbalanced pressure difference between the inside and outside of the transformer when repairing the transformer breather in the prior art.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A transformer respirator maintenance protection device is used to be installed on a breathing tube of a transformer, a flange is provided at the pipe opening of the breathing tube, and a mounting hole is opened on the flange. The transformer respirator maintenance protection device comprises:

[0008] A breathing bottle, wherein a breathing hole is provided at the bottom of the breathing bottle, the breathing hole is connected to the bottle mouth of the breathing bottle, and the breathing bottle is filled with a hygroscopic material;

[0009] A fixing assembly is arranged on the bottle mouth of the breathing bottle, and the fixing assembly includes a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are respectively detachably mounted on both sides of the flange. The fixing assembly is configured to fix the breathing bottle on the breathing tube so that the breathing bottle is connected to the breathing tube.

[0010] Optionally, the fixing assembly also includes a fastener, and the first fixing hole and the second fixing hole are respectively provided on the first fixing plate and the second fixing plate, the first fixing hole and the second fixing hole are arranged opposite to each other, and the fastener is sequentially passed through the first fixing hole, the mounting hole and the second fixing hole, and the fastener is configured to fasten the first fixing plate and the second fixing plate to the flange.

[0011] Optionally, the fastener includes a bolt and a nut, and after the bolt is sequentially inserted into the first fixing hole, the mounting hole and the second fixing hole, the nut is threadedly connected to the bolt.

[0012] Optionally, the bolt comprises a screw rod and two lugs, and the two lugs are symmetrically arranged at one end of the screw rod away from the nut.

[0013] Optionally, the moisture absorbing material includes a sponge pad and silica gel particles, the bottle bottom and the bottle mouth of the breathing bottle are both provided with a sponge pad, and the silica gel particles are filled between two sponge pads.

[0014] Optionally, a sealing gasket is provided between the first fixing plate and the flange, and between the second fixing plate and the flange.

[0015] Optionally, a connecting soft belt is provided between the first fixing plate and the second fixing plate.

[0016] Optionally, the second fixing plate includes a first semicircular plate and a second semicircular plate, the first semicircular plate and the second semicircular plate are fixedly connected, and the second fixing hole is opened on the second semicircular plate.

[0017] Optionally, the first semicircular plate and the second semicircular plate are connected by welding.

[0018] Optionally, the breathing bottle is made of stainless steel.

[0019] Beneficial effects:

[0020] The transformer respirator maintenance protection device provided by the present invention has a hygroscopic material arranged in the respirator bottle, and a fixing component is arranged at the bottle mouth of the respirator bottle. During the process of repairing the respirator of the transformer, the respirator bottle can be installed on the pipe mouth of the breathing tube of the transformer, and the internal and external pressure difference of the transformer can be balanced during the repair process. At the same time, water and impurities in the air are effectively prevented from entering the interior of the transformer, thereby improving the insulation effect of the transformer oil and ensuring the safe operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of the transformer respirator maintenance protection device provided by the present invention.

[0022] In the figure:

[0023] 1. Breathing bottle; 11. Breathing hole; 12. Hygroscopic material; 121. Sponge pad; 122. Silica gel particles;

[0024] 2. Fixing assembly; 21. First fixing plate; 211. First fixing hole; 22. Second fixing plate; 221. First semicircular plate; 222. Second semicircular plate; 2221. Second fixing hole; 23. Fastener; 231. Bolt; 2311. Lug; 232. Nut; 24. Connecting soft belt. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] Embodiment 1

[0030] like Figure 1 As shown, this embodiment provides a transformer respirator maintenance protection device, which is used to be installed on the breathing tube of the transformer. A flange is provided at the pipe mouth of the breathing tube, and a mounting hole is opened on the flange. The mounting hole is used to install the transformer respirator maintenance protection device. The transformer respirator maintenance protection device includes a breathing bottle 1 and a fixing component 2. The bottom of the breathing bottle 1 is provided with a breathing hole 11, and the breathing hole 11 is connected to the bottle mouth of the breathing bottle 1. The breathing bottle 1 is filled with a hygroscopic material 12. The fixing component 2 is arranged on the bottle mouth of the transformer. The fixing component 2 includes a first fixing plate 21 and a second fixing plate 22. The first fixing plate 21 and the second fixing plate 22 are respectively detachably mounted on both sides of the flange. The fixing component 2 can fix the breathing bottle 1 on the breathing tube so that the breathing bottle 1 is connected to the breathing tube.

[0031] The transformer respirator maintenance protection device provided in this embodiment has a hygroscopic material 12 arranged in the respirator bottle 1, and a fixing component 2 is arranged at the bottle mouth of the respirator bottle 1. During the maintenance of the transformer respirator, the respirator bottle 1 can be installed on the pipe mouth of the transformer's breathing tube. The internal and external pressure difference of the transformer can be balanced during the maintenance process, effectively preventing water and impurities in the air from entering the interior of the transformer, improving the insulation effect of the transformer oil, and ensuring the safe operation of the transformer.

[0032] Optionally, the fixing assembly 2 also includes a fastener 23. The first fixing hole 211 and the second fixing hole 2221 are respectively provided on the first fixing plate 21 and the second fixing hole 2221. The first fixing hole 211 and the second fixing hole 2221 are arranged opposite to each other. The fastener 23 is sequentially passed through the first fixing hole 211, the mounting hole and the second fixing hole 2221. The fastener 23 can fasten the first fixing plate 21 and the second fixing plate 22 to the flange.

[0033] Furthermore, if Figure 1 As shown, the fastener 23 includes a bolt 231 and a nut 232. After the bolt 231 is successively passed through the first fixing hole 211, the mounting hole and the second fixing hole 2221, the nut 232 is threadedly connected to the bolt 231. The structure of the bolt 231 and the nut 232 has strong tightness, which can ensure that the connection between the fixing component 2 and the flange is more firmly.

[0034] Alternatively, if Figure 1 As shown, the two lugs 2311 are symmetrically arranged at one end of the bolt 231 away from the nut 232 , so that maintenance personnel can hold the bolt 231 and twist the bolt 231 to screw the bolt 231 into the nut 232 .

[0035] Optionally, the hygroscopic material 12 includes a sponge pad 121 and silica gel particles 122. The bottom of the breathing bottle 1 and the bottle mouth of the breathing bottle 1 are both provided with sponge pads 121, and the silica gel particles 122 are filled between the two sponge pads 121. The setting of the sponge pads 121 can prevent the silica gel particles 122 from falling out of the breathing bottle 1. The setting of the silica gel particles 122 can filter out water and impurities in the air entering the transformer, thereby ensuring the insulation strength inside the transformer and thus ensuring the safe operation of the transformer.

[0036] Optionally, sealing gaskets are provided between the first fixing plate 21 and the flange, and between the second fixing plate 22 and the flange, so as to improve the sealing between the breathing tube of the transformer and the transformer respirator maintenance protection device.

[0037] Optionally, the sealing gasket is made of rubber material. The sealing gasket made of rubber material has strong weather resistance, oil resistance, high temperature resistance and aging resistance, and can ensure a reliable sealing effect between the transformer respirator maintenance protection device and the transformer breathing tube.

[0038] Optionally, a connecting soft belt 24 is provided between the first fixing plate 21 and the second fixing plate 22. The provision of the connecting soft belt 24 can prevent the second fixing plate 22 from being lost during the transportation and storage of the transformer respirator maintenance protection device.

[0039] Furthermore, the connecting soft belt 24 is made of stainless steel. The connecting soft belt 24 made of stainless steel is resistant to oxidation and corrosion, and is not prone to rust, which can increase the service life of the connecting soft belt 24 .

[0040] Optionally, the second fixing plate 22 includes a first semicircular plate 221 and a second semicircular plate 222, the first semicircular plate 221 and the second semicircular plate 222 are fixedly connected, and a second fixing hole 2221 is opened on the second semicircular plate 222 to facilitate the installation of the second fixing plate 22 on the flange.

[0041] Furthermore, in this embodiment, the first semicircular plate 221 and the second semicircular plate 222 are connected by welding.

[0042] Optionally, the breathing bottle 1 is made of stainless steel. The breathing bottle 1 made of stainless steel has low cost, is corrosion-resistant and scratch-resistant, can save costs, and at the same time increase the service life of the breathing bottle 1.

[0043] Embodiment 2

[0044] The present embodiment provides a transformer respirator maintenance protection device, which is different from the first embodiment in that the fixing assembly 2 includes a first fixing plate 21 and a second fixing plate 22, the first fixing plate 21 is provided with a latch tongue, and the second fixing plate 22 is provided with a bayonet, and the latch tongue can be snapped into the bayonet. When the transformer respirator maintenance protection device needs to be installed on the transformer breathing tube, the first fixing plate 21 and the second fixing plate 22 are respectively placed on both sides of the flange plate, and the breathing bottle 1 is fixed to the breathing tube by the cooperation between the latch tongue and the bayonet. The snap connection method has a simple structure and is easy to disassemble and assemble.

[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A transformer respirator maintenance protection device, used to be installed on the breathing tube of the transformer, the breathing tube is provided with a flange at the pipe mouth, and the flange is provided with a mounting hole, characterized in that: The transformer respirator maintenance protection device comprises: A breathing bottle (1), wherein a breathing hole (11) is provided at the bottom of the breathing bottle (1), the breathing hole (11) is connected to the bottle mouth of the breathing bottle (1), and the breathing bottle (1) is filled with a hygroscopic material (12); A fixing assembly (2) is arranged on the bottle mouth of the breathing bottle (1), the fixing assembly (2) comprises a first fixing plate (21) and a second fixing plate (22), the first fixing plate (21) and the second fixing plate (22) are respectively detachably mounted on both sides of the flange, and the fixing assembly (2) is configured to fix the breathing bottle (1) on the breathing tube so that the breathing bottle (1) is connected to the breathing tube; The fixing assembly (2) further comprises a fastener (23); a first fixing hole (211) and a second fixing hole (2221) are respectively provided on the first fixing plate (21) and the second fixing plate (22); the first fixing hole (211) and the second fixing hole (2221) are arranged opposite to each other; the fastener (23) is sequentially passed through the first fixing hole (211), the mounting hole and the second fixing hole (2221); the fastener (23) is configured to fasten the first fixing plate (21) and the second fixing plate (22) to the flange; The second fixing plate (22) comprises a first semicircular plate (221) and a second semicircular plate (222), the first semicircular plate (221) and the second semicircular plate (222) are fixedly connected, and the second fixing hole (2221) is formed on the second semicircular plate (222); The fastener (23) comprises a bolt (231) and a nut (232); the bolt (231) is sequentially inserted into the first fixing hole (211), the mounting hole and the second fixing hole (2221), and the nut (232) is threadedly connected to the bolt (231); The bolt (231) comprises a screw rod and two lugs (2311), wherein the two lugs (2311) are symmetrically arranged at one end of the screw rod away from the nut (232).

2. The transformer respirator maintenance protection device according to claim 1 is characterized in that: The hygroscopic material (12) comprises a sponge pad (121) and silica gel particles (122); the bottle bottom of the breathing bottle (1) and the bottle mouth of the breathing bottle (1) are both provided with a sponge pad (121); and the silica gel particles (122) are filled between the two sponge pads (121).

3. The transformer respirator maintenance protection device according to claim 1 is characterized in that: Sealing gaskets are provided between the first fixing plate (21) and the flange, and between the second fixing plate (22) and the flange.

4. The transformer respirator maintenance protection device according to claim 1 is characterized in that: A connecting soft belt (24) is provided between the first fixing plate (21) and the second fixing plate (22).

5. The transformer respirator maintenance protection device according to claim 1 is characterized in that: The first semicircular plate (221) and the second semicircular plate (222) are connected by welding.

6. The transformer respirator maintenance protection device according to any one of claims 1 to 5, characterized in that: The breathing bottle (1) is made of stainless steel.

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