Modular top heating system for vacuum distillation furnace

The modular top heating system for the vacuum distillation furnace comprises a top heating module, a voltage transformation regulation and control device and an electrode convergence module, the top heating module is detachably arranged at the top of a furnace body, and the voltage transformation regulation and control device is used for adjusting the heating power of the top heating module; the electrode confluence module is used for connecting the top heating module and the voltage transformation regulation and control device; according to the modular top heating system, a modular top heating mode is adopted, the limitation of an original fixed bottom heating mode is broken through, and then large-batch and high-efficiency production is achieved; moreover, in the blowing-in process, the secondary pouring sealing structure of the top heating module can effectively prevent electrode short circuit caused by electrode corrosion or condensation after metal steam escapes upwards, meanwhile, the air tightness of t