A dry-type transformer cooling air duct structure

Abstract

The invention discloses a cooling air channel structure of a dry type transformer. The cooling air channel structure comprises a fixed base; a transformer box is embedded on the upper surface of the fixed base; circular through holes are formed in the bottoms on the two sides of the transformer box; a cooling fan is embedded below the circular through holes; the air outlet of the cooling fan is sleeved with a cooling air channel; the cooling air channel passes through the interior of the transformer box, and the air outlets of the cooling air channel on the two sides are both provided with air pumps; the air pumps are fixed on the top surface of the shell of the transformer box; the air outlets of the air pumps are connected with backflow cooling pipes; the tail ends of the backflow cooling pipes are connected to the coolant inlet of the cooling fan through a three-way valve; the cooling air channel comprises an air channel pipe; an air division plate is mounted in the air inlet of the air channel pipe; and a filtering net is embedded in the outlet of the air channel pipe. By adoption of the cooling air channel structure, shunting of cold air and hot air is realized, the cooling effect can be improved, and recycling can be realized to save energy and reduce pollution.

Description

technical field [0001] The invention relates to the field of transformer equipment, in particular to a dry-type transformer cooling air channel structure. Background technique [0002] A transformer is a device that transforms AC voltage, current, and impedance. When an AC current passes through the primary coil, an AC magnetic flux is generated in the iron core (or magnetic core), which induces a voltage (or current) in the secondary coil. The transformer consists of an iron core (or magnetic core) and a coil. The coil has two or more windings. The winding connected to the power supply is called the primary coil, and the remaining windings are called the secondary coil. In a generator, whether the coil moves through the magnetic field or the magnetic field moves through the fixed coil, an electric potential can be induced in the coil. In both cases, the value of the magnetic flux remains the same, but the amount of magnetic flux intersecting the coil is different. Change, ...

AI Technical Summary

Problems solved by technology

However, during the use of dry-type transformers, the transformer coils will emit a large amount of heat due to excessive current. If the heat cannot be dissipated in time, the performance of the transformer will be seriously affected or even dangerous; the existing transformer cooling air duct has the following problems:

[0004] (1) The cooling air duct structure is too simple, the cold air circulation is limited, the hot air cannot be discharged in time, and the ideal heat dissipation effect cannot be achieved well;

[0005] (2) Most of the cooled exhaust gas is directly discharged, which not only makes insufficient use of energy, but also pollutes the air

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