CONCRETE HEATING METHOD, ELECTRIC HEATER FOR IMPLEMENTATION OF METHOD, INDUCTIVE HEATING ELEMENT OF ELECTRIC HEATER AND METHOD FOR HEATING ELEMENT MANUFACTURING Russian patent published in 2014 - IPC F24D13/00 

FIELD: electricity.

SUBSTANCE: invention is related to electric engineering, in particular to electric heaters and methods of their manufacturing and use for heating. A concrete heating method includes an installation in the concreted structure of an electric heater. An imbedded pipe is used as a case for the electric heater, the pipe is filled by a heat-conducting fluid, a heating element is submerged into the heat-conducting fluid and a fastening rod is formed on the case of the heating element while it is being submerged to the heat-conducting fluid. The electric heater comprises the case, the heating element with a terminal to be connected to the mains, and a heat absorbing material. The inductive heating element contains a magnetic core. The method for manufacturing of the inductive heating element includes installation of an inductance coil at the magnetic core.

EFFECT: even heat transfer from the heating element to the case of the electric heater, reduction of time required for heating up to the target temperature, increase of operation life, good repairability.

13 cl, 6 dwg