Heat exchanger for transformer additionally provided with oil purifier

Abstract

The invention discloses a heat exchanger for a transformer additionally provided with an oil purifier. The heat exchanger comprises a cooling box and a spiral cooling pipe, wherein the cooling pipe is arranged in the cooling box and comprises a first oil inlet pipe and a first oil outlet pipe; the first oil inlet pipe and the first oil outlet pipe are connected with an oil tank of the transformer; a filter(s) are / is arranged on the first oil inlet pipe and / or the first oil outlet pipe; each filter comprises a connecting pipe; a valve is arranged at each of two ends of each connecting pipe; a detachable filter pipe is arranged between the two valves and comprises an oil inlet filter pipe and an oil outlet filter pipe which are detachably connected with each other; a filter screen which is used for filtering impurities is arranged on the oil inlet filter pipe and is recessed towards the oil outlet side to form a recess which is used for accommodating the impurities; a first permanent magnet and a second permanent magnet which are used for adsorbing iron scraps are arranged on the oil outlet filter pipe; an oil discharging device is arranged at the bottom of the filter pipe. A circulation device is good in cooling effect, and can also be used for filtering transformer oil and protecting the transformer; when the oil tank of the transformer is used, the filter pipe can be disassembled and cleaned so as not to block a channel.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a transformer heat exchanger equipped with an oil purifier. Background technique [0002] The transformer will release a lot of heat during use. In order to reduce the heat of the transformer, the transformer will be placed in the transformer oil tank filled with transformer oil, and the heat released by the transformer will be absorbed by the transformer oil, thereby reducing the temperature of the transformer; and in order to reduce the temperature of the transformer The heat of the oil will also be connected to the cooling device on the transformer oil tank, and the transformer oil will be passed into the cooling device to cool down. The transformer oil tank is composed of several iron plates through grinding, tapping, welding, etc. During the manufacturing process, a large amount of impurities such as iron filings will be produced, and people usually only brush it several times wi...

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Problems solved by technology

[0003] The existing transformer oil circulation heat dissipation device can only dissipate heat from the transformer oil, but cannot remove the impurities in the transformer oil. At the same time, after the transformer oil is loaded, the transformer oil will be taken out of the transformer oil tank with the operation of the cooling device. If it is not cleaned in time, it will damage the transformer if it enters the transformer, affect the use of the transformer, or even burn the transformer. When the transformer oil tank is in use, it is inconvenient to remove, and there are many impurities such as iron filings. Very small and difficult to remove

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