阅读说明：本技术 一种可长期使用的变压器油位计 (Transformer oil level indicator capable of being used for long time ) 是由 宋国华 缪建文 杨超 范婷婷 董志成 于 2020-12-14 设计创作，主要内容包括：本发明公开一种可长期使用的变压器油位计,包括油浮升降管,该油浮升降管上套有瓷管、上瓷盖和下瓷套；瓷管和上瓷盖之间连接固定；瓷管通和储油柱固定；下瓷套固定在储油柱上部的基座上；下瓷套一侧与储油柱相连接；油浮升降管的下端设有橡胶浮标；橡胶浮标的上端和下端由固定螺母二进行固定；上瓷盖绕油浮升降管形成一环形空腔,并在空腔中安装有一风扇；上瓷盖开设由多个进气口,进气口与空腔连通。本发明可以使变压器油位计可以干燥大量的水汽,使变压器工作时变压器内部的水分通过可循环使用的干燥剂系统,进行吸收处理,再在干燥剂循环系统中蒸发到大气中,从而使变压器内部的水分大量降低,从而不用再更换干燥剂,保证变压器高效率的工作。(The invention discloses a transformer oil level gauge capable of being used for a long time, which comprises an oil floating lifting pipe, wherein a porcelain pipe, an upper porcelain cover and a lower porcelain sleeve are sleeved on the oil floating lifting pipe; the porcelain tube and the upper porcelain cover are fixedly connected; the ceramic pipe is fixed with the oil storage column; the lower porcelain bushing is fixed on the base at the upper part of the oil storage column; one side of the lower porcelain bushing is connected with the oil storage column; the lower end of the oil floating lifting pipe is provided with a rubber buoy; the upper end and the lower end of the rubber buoy are fixed by a second fixing nut; the upper ceramic cover forms an annular cavity around the oil floating lifting pipe, and a fan is arranged in the cavity; the upper porcelain cover is provided with a plurality of air inlets which are communicated with the cavity. The invention can lead the oil level gauge of the transformer to dry a large amount of water vapor, lead the moisture in the transformer to be absorbed and processed by the drying agent system which can be recycled when the transformer works, and then be evaporated to the atmosphere in the drying agent circulating system, thereby greatly reducing the moisture in the transformer, avoiding replacing the drying agent and ensuring the high-efficiency work of the transformer.)

1. A transformer oil level indicator capable of being used for a long time is characterized by comprising an oil floating lifting pipe (1), a first fixing nut (2), an oil storage column (3), a porcelain pipe (4), a connecting nut (5), an upper porcelain cover (7), an air inlet (8), a fan (9), a lower porcelain bushing (10), a second fixing nut (11), a rubber buoy (12), a drying agent circulating device (13), a drying device (14), a scale display window (15) and a transformer box body (16);

the oil floating lifting pipe (1) is sleeved with a porcelain pipe (4), an upper porcelain cover (7) and a lower porcelain sleeve (10); the porcelain tube (4) and the upper porcelain cover (7) are connected and fixed through a connecting nut (5); the porcelain tube (4) is fixed through a first fixing nut (2) and an oil storage column (3); the lower porcelain bushing (10) is fixed on a base at the upper part of the oil storage column (3); one side of the lower porcelain bushing (10) is connected with the oil storage column (3); the lower end of the oil floating lifting pipe (1) is provided with a rubber buoy (12); the upper end and the lower end of the rubber buoy (12) are fixed by a second fixing nut (11); the upper ceramic cover (7) forms an annular cavity around the oil floating lifting pipe (1), and a fan (9) is arranged in the cavity; the fan (9) is sucked from the left end and exhausted from the right end, the upper ceramic cover (7) is provided with a plurality of air inlets (8), and the air inlets (8) are communicated with the cavity.

2. The long-term usable transformer oil level indicator according to claim 1, characterized in that a sealing gasket (6) is provided between the porcelain tube (4) and the coupling nut (5).

3. The long-term usable transformer oil level indicator according to claim 1, characterized in that sealing gaskets (6) are provided in the connection nut (5) and the porcelain cover (7).

4. The long-term usable transformer oil level indicator according to claim 1, characterized in that a sealing gasket (6) is provided between the upper porcelain cover (7) and the lower porcelain sleeve (10).

5. The long-term usable transformer oil level indicator according to claim 1, wherein the other end of the upper porcelain cover (7) is provided with a strainer connected with a desiccant circulation device (13); one half of the desiccant circulating device (13) is arranged in the upper ceramic cover (7), and the other half of the desiccant circulating device is arranged in the closed cavity; a drying device (14) is arranged in the cavity.

6. The transformer oil level indicator capable of being used for a long time according to claim 1, wherein the oil storage capacity at the lower part of the oil storage column (3) is displayed in the scale display window (15) through the whole body consisting of the rubber buoy (12) and the oil floating lifting pipe (1).

Technical Field

The invention relates to a transformer oil level gauge capable of being used for a long time, and belongs to the technical field of transformer detection equipment.

Background

On the transformer equipment of present stage, need oil level gaugember and oil storage column to detect transformer oil, the oil level gaugember utilizes the principle of float, when transformer oil level changes, the float can go up and down along with the oil level, it indicates the oil level change to drive display device lift, can cause the conducting rod to generate heat when transformer oil level is less than the fuel tank cap, trouble such as oxidation, so can utilize the oil conservator to set up an auxiliary tank on the basis of body oil tank and improve the oil level, guarantee to fill full oil in the transformer oil tank all the time, nevertheless because the oil conservator need set up the respirator and make transformer oil and outside air UNICOM, long-time operation can cause transformer oxidation, it wets. The insulation accident of the power transformer caused by the fact that water enters the power transformer and is affected with damp constantly accounts for about 20% of the insulation accident, and therefore the power transformer poses a great threat to safe operation of a power grid.

The existing power transformer drying agent can only be fixed in a high-voltage bushing, because of the volume problem of the high-voltage bushing, the drying agent which can be arranged is limited, and the drying agent cannot effectively dry a large amount of moisture. The drying agent of the transformer is troublesome to replace, and the inside of the working transformer cannot be effectively dried according to the actual condition for a long time. The problem is to be solved.

Disclosure of Invention

In view of the problems of the prior art, the present invention provides a transformer oil level gauge that can be used for a long time, so as to solve the above technical problems.

In order to achieve the purpose, the invention adopts the technical scheme that: a transformer oil level gauge capable of being used for a long time comprises an oil floating lifting pipe, a first fixing nut, an oil storage column, a porcelain pipe, a connecting nut, an upper porcelain cover, an air inlet, a fan, a lower porcelain sleeve, a second fixing nut, a rubber buoy, a drying agent circulating device, a drying device, a scale display window and a transformer box body;

a porcelain tube, an upper porcelain cover and a lower porcelain sleeve are sleeved on the oil floating lifting tube; the ceramic tube and the upper ceramic cover are connected and fixed through a connecting nut; the porcelain tube is fixed with the oil storage column through a first fixing nut; the lower porcelain bushing is fixed on the base at the upper part of the oil storage column; one side of the lower porcelain bushing is connected with the oil storage column; the lower end of the oil floating lifting pipe is provided with a rubber buoy; the upper end and the lower end of the rubber buoy are fixed by a second fixing nut; the upper ceramic cover forms an annular cavity around the oil floating lifting pipe, and a fan is arranged in the cavity; the fan inhales from the left end and gives vent to anger from the right end, and the upper porcelain cover is seted up by a plurality of air inlets, and the air inlet communicates with the cavity.

Furthermore, a sealing gasket is arranged between the porcelain tube and the connecting nut.

Furthermore, sealing gaskets are arranged in the connecting nut and the porcelain cover.

Furthermore, a sealing gasket is arranged between the upper porcelain cover and the lower porcelain sleeve.

Further, the other end of the upper ceramic cover is provided with a filter screen, and the filter screen is connected with a drying agent circulating device; one half of the desiccant circulating device is arranged in the upper ceramic cover, and the other half of the desiccant circulating device is arranged in the closed cavity; a drying device is arranged in the cavity.

Furthermore, the oil storage capacity condition at the lower part of the oil storage column is displayed in the scale display window through the whole body formed by the rubber buoy and the oil floating lifting pipe.

The invention has the beneficial effects that: the invention can lead the oil level gauge of the transformer to dry a large amount of water vapor, lead the moisture in the transformer to be absorbed and processed by the drying agent system which can be recycled when the transformer works, and then the moisture is evaporated to the atmosphere in the drying agent circulating system, thereby leading the moisture in the transformer to be greatly reduced, avoiding replacing the drying agent, and ensuring the high-efficiency work of the transformer in the face of various worse situations.

Drawings

FIG. 1 is a schematic view of the structure of a transformer oil level gauge according to the present invention;

FIG. 2 is a schematic view of the internal structure of the oil level gauge of the transformer according to the present invention;

fig. 3 is a schematic structural diagram of a desiccant circulation device of a high voltage bushing according to the present invention.

In the figure: 1. oil floats lifting pipe, 2, fixation nut one, 3, oil storage post, 4, porcelain tube, 5, coupling nut, 6, seal ring, 7, upper porcelain cover, 8, air inlet, 9, fan, 10, lower porcelain bushing, 11, fixation nut two, 12, rubber buoy, 13, drier circulating device, 14, drying device, 15, scale display window.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.

Referring to fig. 1, 2 and 3, the transformer oil level indicator capable of being used for a long time comprises an oil floating lifting pipe 1, a first fixing nut 2, an oil storage column 3, a porcelain pipe 4, a connecting nut 5, an upper porcelain cover 7, an air inlet 8, a fan 9, a lower porcelain bushing 10, a second fixing nut 11, a rubber buoy 12, a drying agent circulating device 13, a drying device 14, a scale display window 15 and a transformer box 16; the oil floating lifting pipe 1 is sleeved with a porcelain pipe 4, an upper porcelain cover 7 and a lower porcelain sleeve 10; the porcelain tube 4 and the upper porcelain cover 7 are connected and fixed through a connecting nut 5; the porcelain tube 4 is fixed with the oil storage column 3 through a first fixing nut 2; the lower porcelain bushing 10 is fixed on a base at the upper part of the oil storage column 3; one side of the lower porcelain bushing 10 is connected with the oil storage column 3; the lower end of the oil floating lifting pipe 1 is provided with a rubber buoy 12; the upper end and the lower end of the rubber buoy 12 are fixed by a second fixing nut 11; the upper ceramic cover 7 forms an annular cavity around the oil floating lifting pipe 1, and a fan 9 is arranged in the cavity; the fan 9 sucks air from the left end and discharges air from the right end, the upper ceramic cover 7 is provided with a plurality of air inlets 8, and the air inlets 8 are communicated with the cavity.

In the preferred embodiment, a sealing washer 6 is arranged between the porcelain tube 4 and the connecting nut 5.

In the preferred embodiment, the connection nut 5 and the porcelain cap 7 are provided with sealing gaskets 6.

In the preferred embodiment, a sealing gasket 6 is arranged between the upper porcelain cover 7 and the lower porcelain sleeve 10.

In the preferred embodiment, the other end of the upper porcelain cover 7 is provided with a filter screen, and the filter screen is connected with the desiccant circulating device 13; one half of the desiccant circulating device 13 is arranged in the upper ceramic cover 7, and the other half is arranged in the closed cavity; a drying device 14 is arranged in the cavity.

In the present embodiment, the oil amount in the lower part of the oil column 3 is preferably displayed on the scale display window 15 by the whole body composed of the rubber float 12 and the oil float elevating tube 1.

The power transformer is because the insulating accident that the intaking wet and arouse constantly takes place, after the production aqueous vapor, the aqueous vapor passes through the effect of fan 9 and gets into in upper porcelain cover 7 through air inlet 8, and get into drier circulating device 13 one end through the filter screen and carry out the drying, drier circulating device 13 cavity one end and transformer intracavity intercommunication, carry out the steam in the drying chamber, the other end is outside at upper porcelain cover 7, be equipped with drying device 14 at the outside drier circulating device 13 of upper porcelain cover 7, drier circulating device 13 is rotatory with certain angular velocity, thereby can make the drier after the stoving continue to use, avoid changing the drier.

The invention can lead the oil level gauge of the transformer to dry a large amount of water vapor, lead the moisture in the transformer to be absorbed and processed by the drying agent system which can be recycled when the transformer works, and then the moisture is evaporated to the atmosphere in the drying agent circulating system, thereby leading the moisture in the transformer to be greatly reduced, avoiding replacing the drying agent, and ensuring the high-efficiency work of the transformer in the face of various worse situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.