Heat exchange type water-storage electric water heater

Abstract

The invention discloses a heat exchange type water-storage electric water heater. A cavity is arranged inside a box body; the upper side of the cavity is rotatably connected with a box cover; two gasexhaust holes are formed inside the box cover for preventing excessively great pressure caused by heating; the box body is mainly used for loading deionized water or heat conduction oil; deionized water or heat conduction oil is heated by a heating tube; and deionized water or heat conduction oil is heated by a spiral tube for conducting and heating through water, so that the risk due to the factthat hot water to be used in direct contact with the heating tube generates water scales to cover an electric heating tube is avoided; moreover, a water path does not apply pressure to the box body, and the box body can be manufactured into various forms according to the needs while a pressure bearing problem does not need to be considered excessively, so that space usage is saved; besides, a flowing water body is heated, so that the problem that a retained water body in the conventional electric water heater breeds bacteria can be avoided, and use health degree of people is improved. Besides,the length and the forms of a water outlet tube and a water inlet tube are arranged, so that the electric isolating effect is improved from the physical layer.

Description

technical field [0001] The invention relates to the technical field of household electrical appliances, in particular to a heat exchange type water storage electric water heater. Background technique [0002] Nowadays, with the continuous improvement of living standards, more and more families have installed electric water heaters. The existing electric water heaters rely on the cold water in to push out the hot water. Therefore, in order to ensure the pressure resistance of the container, most The appearance of electric water heaters is mostly a circular water tank, and a circular water tank will take up a large space in the bathroom. In addition, because the water inside the tank is mostly static, it will cause some problems. [0003] First, long-term storage of water will breed bacteria, resulting in unhealthy bathing; second, tap water itself contains very little algae, which is prone to algae reproduction for a long time. [0004] In addition, the existing electric wat...

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Problems solved by technology

[0002] Nowadays, with the continuous improvement of living standards, more and more families have installed electric water heaters. The existing electric water heaters rely on the cold water in to push out the hot water. Therefore, in order to ensure the pressure resistance of the container, most The appearance of electric water heaters is mostly a round water tank, and a round water tank will take up a lot of space in the bathroom. In addition, because the water inside the tank is mostly static, it will cause some problems

[0003] First, long-term storage of water will breed bacteria, resulting in unhealthy bathing; second, tap water itself contains very little algae, which is prone to algae reproduction for a long time

[0004] In addition, the existing electric water heaters use electric heating tubes to directly heat tap water. The surface temperature of the electric heating tubes is relatively high, and scale is easy to form after contacting with tap water, and due to lack of fluidity, it is very easy to adhere to the heating tubes. On the other hand, when the scale thickens to a certain amount, the heat of the electric heating tube cannot be transferred to the water quickly, causing the electric heating tube to burst at high temperature.

[0005] In addition, due to the long service life and other reasons, some electric water heaters may leak electricity, and the current will flow along the water flow, which may cause harm to the human body. The existing water inlet and outlet pipelines are short and cannot play the role of electrical isolation.

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