With the development of petrochemical industy, industry, immerse into dyadic electric heater supporting warmup on jar body equipment, develop the automation cycle electrical heating system being that fluid medium independence heats a device, develops Cheng again having autocontrol fluid medimu. They are new model electrical heating product developing on advanced fabrication of 90's of later stage industrialized conunty technology basisi in aspiration, warmup being used for every industry fluid medium such as oil field, refinery, chemical plant, litre of temperature, descends sticky, cut hinder, rise that output, they are put into user going to the lavatory, life-span is long, energy conservation, the nothing con-taminate, automation degree is taller than, is a kind of extremely ideal electrical heating product, and has very obvious economic returns and social benefits.