Annular nanocrystalline encapsulated transformer

The nanocrystalline annular encapsulated transformer comprises a transformer shell and a cover fixedly installed at the top of the transformer shell, a plurality of cooling fins are fixedly installed at the bottom of the transformer shell, and a water cooling mechanism used for cooling the transformer shell is arranged on the side face of the transformer shell; in the process that the adjusting pipe is driven by the electric push rod to move downwards, a small amount of cooling water injected into the adjusting pipe from the connecting pipe can be sprayed out along with the through holes, the sprayed cooling water can be sprayed to the middles of the cooling fins, and when the extending end of the electric push rod is in the longest state, the through holes are located in the connecting pipe, so that the cooling effect is improved. When the cooling device is used, part of cooling water flowing in the connecting pipe flows into the adjusting pipe, due to the influence of water pressure, the atomizing cooling w