| 摘要 |
A three-phase power frequency electromagnetic dual induction heating device for liquid comprises: a 7 secondary short-circuit heating device (30), a circulating box (13), a pipeline system, and a magnetic frame (18). The 7 secondary short-circuit heating device (30) is fixed on an inner bottom base (14) in the circulating box (13). The pipeline system comprises a header inlet pipe (16), an L-shaped branch pipe (17), and an outlet pipe. The magnetic frame (18) is made of a ferromagnetic material, and a space is uniformly kept between four sides of the magnetic frame (18) and the 7 secondary short-circuit heating device (30), to form a passage (19) for a circulating liquid to flow. A three-phase power frequency electromagnetic dual induction heating method for liquid comprises: dipping a 7 secondary short-circuit heating device (30) into a circulating liquid medium; a magnetic frame (18) around the 7 secondary short-circuit heating device (30) inducing leakage flux generated by the 7 secondary short-circuit heating device (30) to form a loop, thereby generating an eddy current; and heating the liquid medium by means of short-circuit heating and eddy current heating at the same time.
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