A fully-enclosed large-scale drum-section induction heating furnace

Abstract

An all-surrounding type large-scale cylinder section induction heating furnace mainly comprises a machine frame, a furnace lid, an upper end induction wire tube, wire clamps, partition plates, oil cylinder supports, double piston rod oil cylinders, double-piston rods, copper blocks, an outer wall induction wire tube, outer movable refractory walls, inner movable refractory walls, an inner wall upper end induction wire tube, an inner wall lower end induction wire tube, through holes A, power interfaces A, power interfaces B, cylinder sections, piston rods, oil cylinders, bearing platforms, a fixed base, a lower end induction wire tube, supporting rods, annular connecting rods, connecting rods A, connecting rods B and furnace walls. According to the all-surrounding type large-scale cylinder section induction heating furnace, the induction heating principle is utilized, fast heating of the large-scale cylinder section heat treatment process is achieved, and one-time heating time of the cylinder sections is shortened from tens of hours to 6-8 hours; the distance between coils and the inner walls of the cylinder sections as well as the distance between the coils and the outer walls of the cylinder sections can be adjusted flexibly, uniform heating of the inner walls and the outer walls of the cylinder sections is achieved, the power factor of an inductor is increased, and the required source power is decreased; and heating of the cylinder sections with different diameters and thicknesses is achieved.

Description

technical field [0001] The invention relates to the technical field of heating furnaces. Background technique [0002] The heating process of the heat treatment of large-scale drum joints is usually heated by trolley-type resistance furnace or flame furnace. The wall thickness of the barrel section is very thick, which makes the heat conduction process very slow. The heating rate of the outer wall of the barrel section can only be controlled at about 50-70 degrees per hour, and the heating rate of the center and inner wall of the barrel section is even lower. Heat-saving treatment usually reaches tens of hours at a time, and the production cycle is very long. At the same time, the trolley-type flame furnace or resistance furnace has high energy consumption, low heat energy utilization rate, serious environmental pollution, and cannot meet the requirements of modern industrial development. Contents of the invention [0003] The purpose of the present invention is to provi...

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Problems solved by technology

[0002] The heating process of the heat treatment of large-scale drum joints is usually heated by trolley-type resistance furnace or flame furnace. The wall thickness of the barrel section is very thick, which makes the heat conduction process very slow. The heating rate of the outer wall of the barrel section can only be controlled at about 50-70 degrees per hour, and the heating rate of the center and inner wall of the barrel section is even lower. Heat-saving treatment usually reaches dozens of hours at a time, and the production cycle is very long

At the same time, the trolley-type flame furnace or resistance furnace has high energy consumption, low heat utilization rate, serious environmental pollution, and cannot meet the requirements of modern industrial development.

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