Metal corrugated pipe type oil storage cabinet

Abstract

The invention relates to a voltage transformation device, in particular to a metal corrugated pipe type oil storage cabinet with good sealing property, long service life, full-vacuum oil injection, visual and reliable indication, less jamming, no maintenance and convenience for installation. The metal corrugated pipe type oil storage cabinet comprises a cabinet body (1), an oil cavity (2), a corrugated pipe assembly (3), a sliding guide mechanism, a breathing port (4), an air exhaust port (5), an oil injection port (6) and a corrugated flexible connecting pipe (7), wherein the corrugated pipe assembly (3) is hermetically arranged at one side inside the cabinet body (1), the sliding guide mechanism is arranged on the side wall inside, the air exhaust port (5) is arranged above the cabinet body (1) outside, and the oil injection port (6) and the corrugated flexible connecting pipe (7) are respectively arranged below the cabinet body (1) outside; the oil cavity (2) is formed inside the cabinet body (1) and outside the corrugated pipe assembly (3); the sliding guide mechanism is in sliding connection with the corrugated pipe assembly (3); and the breathing port (4) is communicated with an inner cavity of the corrugated pipe assembly (3), and the air exhaust pipe (5) is communicated with the oil cavity (2).

Description

technical field [0001] The invention relates to a voltage transformation device in an electric power facility, in particular to a metal bellows type oil conservator. Background technique [0002] With the continuous development and progress of society and the rapid development of local economy, the use of electric energy has become more and more extensive. In practical applications, after the electric energy is delivered to the power consumption area, in order to meet the voltage requirements of the electrical equipment, it is necessary to use transformers at all levels of substations to reduce the voltage to the voltage value required by various electrical appliances. It can be seen from the above that the power transformer is in Plays an important role in the power system. [0003] The so-called power transformer is a kind of static electrical equipment, which is used to change the AC voltage (current) of a certain value into another voltage (current) with the same freque...

AI Technical Summary

Problems solved by technology

[0005] The above four kinds of oil conservator generally have the following disadvantages respectively: for ordinary oil conservator, the silica gel in the respirator only plays the role of attaching the moisture in the air, when the silica gel ages or fails, it will directly lead to The insulating oil is connected with the air, thereby accelerating the deterioration of the oil, reducing its insulation and affecting the safe operation of the transformer

For the capsule type and diaphragm type oil conservator, the rubber material of the capsule type and diaphragm type oil conservator is about 0.6mm thick multi-layer nitrile and neoprene, although it plays the role of completely isolating the insulating oil from the air, However, during the operation of the transformer, the capsule moves back and forth due to insufficient mechanical strength, resulting in rupture and oil leakage, or due to the problem of the diaphragm material, the semi-cylindrical part of the oil conservator often ruptures and leaks, resulting in a decrease in the sealing of the transformer , and cause oil quality to deteriorate, seriously affecting the safe and stable operation of the transformer

For the diaphragm type oil conservator, although the problems existing in the above three types of oil conservator are eliminated, the safe and reliable operation of the transformer is ensured, and the leakage of the oil conservator is reduced, but during its working process, when After the oil conservator is filled with transformer oil, the bellows will float up due to the buoyancy, which causes friction between the bellows and the inner wall of the oil conservator when it expands and contracts, resulting in a jamming phenomenon; at the same time, because the bellows are made of stainless steel, Therefore, a large amount of metal shavings produced by the friction between it and the iron shell of the oil conservator will seriously pollute the transformer oil, and eventually reduce the insulation level, which cannot guarantee its safe and reliable operation.

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