Electric heating assembly, water heater and preparation method of electric heating assembly

Abstract

The invention discloses an electric heating assembly, a water heater and a preparation method of the electric heating assembly. The electric heating assembly comprises a flange, a heating pipe and a temperature measuring pipe. The heating pipe and the temperature measuring pipe are connected to the flange. The surface of the heating pipe is covered with a first enameled layer. The side, close to the flange, of the first enameled layer is spaced from the flange, so that the portions, between the first enameled layer and the flange, of the heating pipe form first exposed segments. According to the electric heating assembly provided by the invention, the scale inhibiting ratio of the heating pipe of the electric heating assembly can be increased, the corrosion resistance and the vibration resistance of the flange are improved, and accordingly, the service life is prolonged.

Description

technical field [0001] The invention relates to the field of water heater processing and manufacturing, in particular to an electric heating assembly, a water heater, and a method for preparing the electric heating assembly. Background technique [0002] In order to prevent electric water heaters from forming scale on the heater after use, manufacturers generally process an enamel layer on the surface of the heater to prolong the service life of the heater. In the water heater structural scheme disclosed in the present technology, all be the overall enamel of the heating tube that heater adopts, parts such as heating tube, temperature measuring tube are welded on the flange then. But there are following problems in such processing mode: [0003] 1. The overall enamel area ratio is low, and the scale inhibition rate is limited; [0004] 2. The corrosion resistance and anti-vibration effect of the welding place are poor. There is also a scheme in which the heating pipe is r...

AI Technical Summary

Problems solved by technology

[0003] 1. The overall enamel area ratio is low, and the scale inhibition rate is limited;

[0004] 2. The corrosion resistance and anti-vibration effect of the welding place are poor

There is also a scheme of riveting the heating pipe to the flange. After the riveting part is corroded, it will also cause water leakage of the water heater and pose a safety hazard.

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