Horizontal type double-liner fast-heating water storage type electric water heater adopting combined electric heating tubes

Abstract

The invention provides a horizontal type double-liner fast-heating water-storage type electric water heater adopting combined electric heating tubes. According to the horizontal type double-liner fast-heating water-storage type electric water heater adopting the combined electric heating tubes, water tanks (13) are made of metal or non-metallic materials, and the horizontal type combined electric heating tubes (9) are arranged at flange openings (15) of the water tanks correspondingly; each combined electric heating tube is composed of a non-metallic tubular heater (5) and a linking piece (7) made of metals or non-metals, a shell of each non-metallic tubular heater (5) is a non-metallic blind hole tube or a tube bent into a U shape, and a heating wire (3) and magnesium oxide powder or air (4), or a heating tube (including a carbon fiber tube or a halogen tube or a dry burning metal electric heating tube) is contained in each non-metallic tubular heater (5); each linking piece (7) is made of non-metallic materials through injection molding or made of metal materials, and a sealing piece (2) is arranged between each combined tubular heater (5) and the corresponding linking piece (7); when water is discharged, the electric heating tube of the upper water tank is connected, and heated water is sent to the upper portion and discharged immediately; and the electric heating tube of the lower water tank is used for preheating.

Description

technical field [0001] The invention relates to an electric water heater, and mainly relates to a combined electric heating tube immersed in water used in the electric water heater. Background technique [0002] The existing electric heating tubes used in electric water heaters are 100% in accordance with the Chinese technical standard GB / T23150-2008 "Tubular Heaters for Water Heaters" which "use a metal tube as the outer shell and an alloy heating wire as the heating element. The lead-out rod is filled with dense magnesium oxide powder insulation medium in the metal tube to fix the heating element; "this kind of metal shell electric heating element is completely immersed in water. After a long time of use, it will form scale and reduce heating efficiency, and Corrosion breakdown, electrification of water is a problem in the world; on December 22, 2015, Guangdong Shunde Guangsheng Electric Co., Ltd. applied for 18 patents, including application number 201511007372.8, which p...

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Problems solved by technology

[0002] The existing electric heating tubes used in electric water heaters are 100% in accordance with the Chinese technical standard GB / T23150-2008 "Tubular Heaters for Water Heaters" which "use a metal tube as the outer shell and an alloy heating wire as the heating element. The lead-out rod is filled with dense magnesium oxide powder insulation medium in the metal tube to fix the heating element; "this kind of metal shell electric heating element is completely immersed in water. After a long time of use, it will form scale and reduce heating efficiency, and Corrosion breakdown, electrification of water is a problem in the world; on December 22, 2015, Guangdong Shunde Guangsheng Electric Co., Ltd. applied for 18 patents, including application number 201511007372.8, which provided the structural form of the combined electric heating tube. This patent application includes its Applied to electric water heater

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