CN213815756U

CN213815756U - Prevention and processing structure that transformer oil leaked

Info

Publication number: CN213815756U
Application number: CN202023038487.2U
Authority: CN
Inventors: 王政义; 张乾; 宗克柱
Original assignee: Tbea Shandong Shenbian Electrical Equipment Co ltd
Current assignee: Tbea Shandong Shenbian Electrical Equipment Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-27
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a structure for preventing and treating transformer oil leakage, wherein, a tank edge and a tank cover of a transformer oil tank are hermetically connected through a bolt and a sealing gasket; an L-shaped angle plate is arranged on the inner side of the tank edge and forms a clamping groove with the tank wall of the oil tank; one side of the sealing gasket, which faces the box edge, is provided with a convex block, and the convex block is arranged in the clamping groove to form a sealing structure; an oil tank is arranged at the bottom of the transformer, and an oil drain valve is arranged at one end of the oil tank; the oil collecting box cover is provided with a plurality of oil collecting boxes, the oil collecting boxes respectively enclose the edge portions of the exposed components on the box cover, the exposed components are divided into a plurality of areas, the bottom of each oil collecting box is hollowed out to form an oil channel with the surface of the box cover, the edge portions of the hollowed-out portions and the box cover are sealed, the bottom of each oil collecting box is respectively provided with an oil guide pipe, and the oil guide pipes are communicated with the bottom oil pool. The utility model discloses can guarantee the seal of oil tank under the long-term operation, not only prevent transformer oil seepage, more solve the problem that causes the pollution to transformer itself and environment easily after taking place the seepage.

Description

Prevention and processing structure that transformer oil leaked

Technical Field

The utility model relates to an oil-immersed transformer specifically is a prevention and processing structure that transformer oil leaked.

Background

The oil immersed transformer is generally installed in a single transformer room, and is widely applied to power supply and distribution systems of industrial and mining enterprises and civil buildings due to good insulating property, good heat conducting property and low cost of transformer oil.

If defects such as cold joint, desoldering, pinholes in welding lines, sand holes and the like exist in the manufacturing process of the transformer, great potential safety hazards can be brought in the operation process. In addition, welding can be cracked due to electromagnetic vibration, and leakage is caused; and because the sealing gasket is aged and cracked, the sealing gasket of the transformer often leaks. The quality of the gasket depends mainly on its oil resistance. If the sealing gasket has poor oil resistance, the aging speed is higher particularly at high temperature, so that the sealing gasket of the transformer is easy to generate aging cracks and oil leakage.

The oil leakage phenomenon of the transformer not only seriously affects the appearance, but also causes economic loss because the transformer needs to be shut down to eliminate oil leakage. If a large amount of oil exists on the transformer tank body, the oil can also become a fire hazard; the oil paper insulation is seriously affected by the invasion of outside air and moisture, the insulation performance is reduced, the insulation aging is accelerated, the safe and reliable operation of the transformer is influenced, and the environment is polluted by the leakage to the outside.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough that exists to oil-immersed transformer in the prior art, the to-be-solved problem of the utility model is to provide a prevention and processing structure that transformer oil leaked.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a structure for preventing and treating transformer oil leakage, wherein the tank edge and the tank cover of a transformer oil tank are hermetically connected through bolts and sealing gaskets; an L-shaped angle plate is arranged on the inner side of the tank edge and forms a clamping groove with the tank wall of the oil tank; one side of the sealing gasket, which faces the box edge, is provided with a convex block, and the convex block is arranged in the clamping groove to form a sealing structure.

The outer side of the box cover is bent downwards to form a protective structure which integrally protects the sealing gasket and limits the displacement space of the sealing gasket.

An oil tank is arranged at the bottom of the transformer, and an oil drain valve is arranged at one end of the oil tank; the oil collecting box cover is provided with a plurality of oil collecting boxes, the oil collecting boxes respectively enclose the edge portions of the exposed components on the box cover, the exposed components are divided into a plurality of areas, the bottom of each oil collecting box is hollowed out to form an oil channel with the surface of the box cover, the edge portions of the hollowed-out portions and the box cover are sealed, the bottom of each oil collecting box is respectively provided with an oil guide pipe, and the oil guide pipes are communicated with the bottom oil pool.

And the oil level indicator is arranged on the top of the oil tank.

The utility model has the following beneficial effects and advantages:

1. the utility model provides a prevention and processing structure of transformer oil leakage, sealed pad limit structure can not make sealed pad weak point appear, guarantees the seal of oil tank under the long-term operation to utilize an album oil box and lead oil pipe, and increased the oil bath bottom the oil tank, realized the reutilization of oil leakage oil, not only prevented transformer oil leakage, more solved take place after the seepage easily to transformer itself and the problem that the environment caused the pollution.

Drawings

Fig. 1 is a schematic view of the structure for preventing and treating the leakage of transformer oil according to the present invention;

fig. 2 is a schematic view of a sealing structure of the middle box edge 3 and the box cover 2 of the present invention;

fig. 3 is the arrangement schematic diagram of the oil collecting box in the utility model.

The oil level meter comprises an oil tank 1, a tank cover 2, a tank edge 3, bolts 4, a sealing gasket 5, an L-shaped angle plate 6, a clamping groove 7, an oil pool 8, an oil drain valve 9, an oil collecting box 10, an oil guide pipe 11, a protrusion 12 and an oil level meter 13.

Detailed Description

The invention will be further explained with reference to the drawings attached to the specification.

As shown in fig. 1-2, the utility model provides a transformer oil leakage prevention and treatment structure, wherein a tank edge 3 and a tank cover 2 of a transformer oil tank 1 are hermetically connected through a bolt 4 and a sealing gasket 5; an L-shaped angle plate is arranged on the inner side of the tank edge 3 and forms a clamping groove 7 with the tank wall of the oil tank 1; the side of the sealing gasket 5 facing the box edge 3 is provided with a projection 12, and the projection is arranged in the clamping groove 7 to form a sealing structure.

The outer side of the box cover 2 is bent downwards to form a protective structure which integrally protects the sealing gasket and limits the displacement space of the sealing gasket. And an oil level gauge 13 mounted on the top of the oil tank 1.

As shown in fig. 3, an oil pool 8 is arranged at the bottom of the transformer, and an oil drain valve 9 is arranged at one end of the oil pool 8; the oil collecting box 2 is provided with a plurality of oil collecting boxes 10 which respectively enclose the edge parts of the exposed components on the box cover 2 and divide the exposed components into a plurality of areas, the bottom parts of the oil collecting boxes 10 are hollowed out to form oil passages with the surface of the box cover 2, the edge parts of the hollowed-out parts are sealed with the box cover 2, the bottom parts of the oil collecting boxes 10 are respectively provided with an oil guide pipe 11, and the oil guide pipes 11 are communicated with the bottom oil pool 8.

A plurality of oil collecting boxes 10 on the box cover 2 are divided into a plurality of areas according to components exposed on the box cover 2, once the components exposed on the box cover 2 have an oil leakage phenomenon, oil can flow into the oil guide pipe 11 in the area enclosed by the oil collecting boxes 10 and then flow into the bottom oil pool 8 for recovery, and the box body of the oil box 1 is prevented from being polluted.

In this embodiment, L type scute welding is at 3 inboards on the case edge, forms draw-in groove 7 with the tank wall, and the sealed lug that fills up towards case edge one side just can squeeze into draw-in groove 7 and carry out sealed cooperation. 2 tip of case lid bends downwards, can form the secondary protection to sealed 5, further prevents sealed the pad and takes place to remove because of pressure or other reasons, avoids the erosion of rainwater or other debris simultaneously, has prolonged sealed life who fills up 5.

During the assembly, place sealed pad 5 on case edge 3 earlier, and make the lug 12 card on sealed pad 5 put in L type scute and draw-in groove 7 that the tank wall formed, reuse bolt 4 with case lid 2, sealed pad 5, case edge 3 compresses tightly and fixes, L type scute 6 can make sealed pad 5 stable fix on case edge 3, can not take place the translation because of pressure and lead to sealing badly to cause the transformer oil seepage, even take place the seepage because of other reasons, the oil bath 8 of bottom also can be timely collect the transformer oil of seepage, realize the recovery and the reuse of oil through oil drain valve 9, tubular oil level gaugember 13 is installed at the oil tank top, be used for monitoring oil level change in the oil tank.

The sealing gasket 5 is made of nitrile rubber, so that the rubber has good elasticity and excellent sealing performance.

Through adopting above-mentioned structure, sealed 5 and the case of filling up along 3 cooperations inseparabler, make transformer oil more be difficult to follow the case along 3 leakages, thereby the spacing hem of L type is also fine has prevented sealed pad emergence displacement influence sealing performance. The oil sump of the lower part is used for collecting leaked transformer oil under the condition that a large amount of transformer oil leaks when the transformer fails, and the oil drain valve arranged at the end part can conveniently recover and utilize the transformer oil again.

Claims

1. The utility model provides a prevention and processing structure that transformer oil leaked which characterized in that: the tank edge and the tank cover of the transformer oil tank are hermetically connected through bolts and sealing gaskets; an L-shaped angle plate is arranged on the inner side of the tank edge and forms a clamping groove with the tank wall of the oil tank; one side of the sealing gasket, which faces the box edge, is provided with a convex block, and the convex block is arranged in the clamping groove to form a sealing structure.

2. The transformer oil leakage prevention and treatment structure according to claim 1, wherein: the outer side of the box cover is bent downwards to form a protective structure which integrally protects the sealing gasket and limits the displacement space of the sealing gasket.

3. The transformer oil leakage prevention and treatment structure according to claim 1, wherein: an oil tank is arranged at the bottom of the transformer, and an oil drain valve is arranged at one end of the oil tank; the oil collecting box cover is provided with a plurality of oil collecting boxes, the oil collecting boxes respectively enclose the edge portions of the exposed components on the box cover, the exposed components are divided into a plurality of areas, the bottom of each oil collecting box is hollowed out to form an oil channel with the surface of the box cover, the edge portions of the hollowed-out portions and the box cover are sealed, the bottom of each oil collecting box is respectively provided with an oil guide pipe, and the oil guide pipes are communicated with the bottom oil pool.

4. The transformer oil leakage prevention and treatment structure according to claim 3, wherein: and the oil level indicator is arranged on the top of the oil tank.