The invention discloses a
transformer oil radiator as well as a preparation method and a packaging method thereof. The
transformer oil radiator comprises two oil chamber assemblies and a radiating core
assembly arranged between the two oil chamber assemblies, each oil chamber
assembly comprises an oil collecting
pipe and a plurality of oil chambers vertically communicated with the oil collecting
pipe, the oil chambers of the two oil chamber assemblies are in one-to-one correspondence, and a plurality of flow dividing openings are formed in the oil chambers; the heat dissipation core
assembly comprises a plurality of cooling pipes, and the two ends of each
cooling pipe communicate with the corresponding flow dividing openings in the oil chambers correspondingly. The oil chamber and the
cooling pipe are made of
rust-proof high-strength aluminum
alloy materials, and the oil chamber and the
cooling pipe are welded through the aluminum
alloy brazing technology. According to the invention, through improvement of the material and the
welding mode, the internal cleanliness is ensured to the greatest extent while the light weight of the
transformer oil radiator is realized, a
transformer oil flushing process is adopted inside, an internal paint filling process of an old iron sheet radiator can be completely replaced, the process difficulty is reduced, the manufacturing cost is saved, a paint
coating process is canceled, and the production efficiency is improved. The influence on the environment is reduced to the minimum.