Liquid Zinc Corrosion Resistant Alloy Inner Heater

Abstract

The invention relates to an inner heater of liquid zinc corrosion resistance alloy. The inner heater of the liquid zinc corrosion resistance alloy is characterized by comprising a compression seal device, an additional pipe, a first connecting flange, a second connecting flange, an outer sleeve, a heat conductor, an electrical heating core, a top pillar, an antioxidant and two extraction electrodes, wherein the electrical heating core is a U-shaped electrical heating pipe, and comprises a heating area and a connection electrode area, a designed number of metal plates are evenly distributed along the length direction of the heating area of the electrical heating core, a disk is welded at the top of the connection electrode area of the electrical heating core, the top of the U-shaped electrical heating pipe and the disk are welded into a whole, the two extraction electrodes are respectively extracted from two ends of the U-shaped electrical heating pipe, the two extraction electrodes are connected with a power source through lead wires, a connection blind hole is formed in the disk, the lower end of the top pillar is connected with the connection blind hole, the upper end of the top pillar is connected with a compression bolt, the additional pipe is a cylinder with two ends open, and the upper end of the additional pipe is connected with the disk.

Description

technical field [0001] The invention relates to a heater, in particular to a liquid-resistant zinc corrosion alloy inner heater which is used in the hot-dip galvanizing industry and can directly heat the zinc liquid in a galvanizing pot. Background technique [0002] At present, the heater used for hot-dip galvanizing by internal heating generally uses inorganic non-metallic materials such as quartz glass, silicon carbide, silicon nitride or graphite as the outer casing resistant to liquid zinc corrosion, and then installs an electric heater inside it. body made. These materials are not suitable for large-scale industrial production because of their high brittleness, easy damage, and low service life, and because of the slow heat transfer and low thermal efficiency of the overall heater. Although the outer casing made of common metal materials has high strength, good toughness and high heat transfer efficiency, it cannot be used in industry because it is not resistant to li...

AI Technical Summary

Problems solved by technology

The inner heater is made of an outer casing made of special metal materials, an inner electric heating core, and a heat conductor, which overcomes the slow heat transfer, low thermal efficiency, high brittleness, easy damage, and low life of the inner heater in the prior art, which is difficult to use. Problems in large-scale industrial production, etc., more suitable for industrial applications

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