Off-line ignition testing device of RH preheating gun

The utility model relates to an off-line ignition testing device of an RH preheating gun, which includes a box body and a high-voltage pulse device arranged in the box body, wherein the high-voltage pulse device includes an iron core and three groups of coils wound on the iron core; two groups of primary coils are arranged on one side of the iron core with one group of primary coils being a reactance coil, and the primary coils generate pulse continuous magnetic flux; an output coil used for generating high-voltage pulse voltage is arranged on the other side of the iron core; and the output end of the output coil is connected with a wiring end of the preheating gun to drive the preheating gun to achieve off-line ignition. During the testing, as long as the switch of the testing device is turned off, the ignition state of the to-be-detected preheating gun can be observed to be whether complete. Except for the on-line testing, the spare part of the preheating gun is additionally provided with the off-line testi