Oil-immersed type mutual inductor fuel tank

Abstract

The invention discloses an oil-immersed type mutual inductor fuel tank. The fuel tank is formed by the buckling of an upper fuel tank and a lower fuel tank, the upper and lower fuel tanks are shaped by stretching at one time, the lower fuel tank comprises a first square end part and a semi-cylindrical groove body with an upward opening, the first square end part is arranged above the semi-cylindrical groove body, and the lower surface of the semi-cylindrical groove body is provided with a gasoline releasing plug and supporting legs; the upper fuel tank comprises a second square end part and areversed buckled semi-spherical groove body, the second square end part is arranged below the semi-circular groove body, the second square end part is connected and buckled with the first square end part, and the upper surface of the upper fuel tank is provided with a ceramic bottle flange and a wire outlet seat flange. According to the fuel tank, the fuel tank is shaped by stretching by adoptinga stretching plate with good quality and has the advantages of less welding seams, less leakage points and difficult gasoline leakage, a flanging structure is adopted by the edge of the fuel tank, a reinforcing effect is achieved, the appearance of the fuel tank after integrated assembly is conducted is more attractive, the capacity of the fuel tank meets various requirements of new standards, andthe fuel tank has the market advantages of less gasoline storage and low cost.

Description

technical field [0001] The invention relates to an oil tank, in particular to an oil-immersed transformer oil tank. Background technique [0002] At present, the oil tanks of oil-immersed voltage transformers on the market are all square structures, and the tank body and flanges are welded. After using this oil tank, it is easy to leak oil, and because of the square structure, a lot of insulation space is wasted, thus wasting out of transformer oil. There are also fuel tanks that use integral casting. When manufacturing, casting technology must be used to increase manufacturing equipment, and the casting quality is not easy to control, and leakage holes are prone to appear, causing quality problems, and the capacity design cannot meet the needs of large fuel tanks for high-voltage transformers. Therefore, there is still a lot of room for improvement in the design of large-capacity oil-immersed transformer oil tanks. Contents of the invention [0003] The oil-immersed tra...

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Problems solved by technology

[0002] At present, the oil tanks of oil-immersed voltage transformers on the market are all square structures, and the tank body and flanges are welded. After using this oil tank, it is easy to leak oil, and because of the square structure, a lot of insulation space is wasted, thus wasting transformer oil

There are also fuel tanks that use integral casting. When manufacturing, casting technology must be used to increase manufacturing equipment, and the casting quality is not easy to control, and leakage holes are prone to appear, causing quality problems, and the capacity design cannot meet the needs of large fuel tanks for high-voltage transformers. Therefore, there is still a lot of room for improvement in the design of large-capacity oil-immersed transformer oil tanks

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