Heat dissipation device for assembled transformer

The invention discloses a heat dissipation device for an assembled transformer, the heat dissipation device cools hot oil flowing through a transformer oil tank in an upper oil collecting pipe and conveys cold oil back to the transformer oil tank through a lower oil collecting pipe, the heat dissipation device comprises a plurality of heat dissipation units, and the heat dissipation units are installed between the upper oil collecting pipe and the lower oil collecting pipe side by side; each heat dissipation unit comprises a flow divider, a combined heat dissipation pipe, a pipe fitting fixing fin and a junction station which are arranged from top to bottom, and the heat dissipation device further comprises an ohm hoop, a fan set and an oil collection pipe flange. The ohm hoops are arranged on the upper oil collecting pipe and the lower oil collecting pipe and used for fixing the flow divider and the junction station, and the connection mode is bolt connection. The fan set is composed of a plurality of fans a