Electric water heater capable of being intelligently controlled to be started

Abstract

The invention provides an electric water heater capable of being intelligently controlled to be started. The electric water heater comprises an electric heating device and a water tank, wherein the electric heating device is arranged in the water tank, the water tank comprises a water inlet pipe and a water outlet pipe, the electric heating device comprises a first pipe box, a second pipe box andcoil pipes, the coil pipes are communicated with the first pipe box and the second pipe box to form a heating fluid closed cycle, and electric heaters are arranged in the first pipe box; the first pipe box is filled with phase change fluid; the number of the coil pipes is one or more, each coil pipe comprises a plurality of circular-arc-shaped pipe bundles, center lines of the circular-arc-shapedpipe bundles are arcs with the first pipe box as a concentric circle, and ends of the adjacent pipe bundles communicate with each other, so that the ends of the pipe bundles form pipe bundle free ends; and the plurality of electric heaters are gradually started and stopped according to the change of the heating power. Through changes of heating power of electric heating device within a certain period of time, periodic frequent vibration of the coil pipes can be achieved, so that good descaling and heating effects are achieved.

Description

technical field [0001] The invention relates to a water heater, in particular to an electric water heater with intermittent vibration descaling. Background technique [0002] The water heater is an indispensable household appliance in current family life. And generally adopt electric water heater at present, utilize electric water heater to heat. In the applicant's previous application, a new type of coil-type electric heating coil was developed and researched, such as CN106123306A, so that the elastic tube bundle caused by the expansion of the fluid caused by heating caused heating and descaling Effect. [0003] However, in the application, it is found that the continuous heating of the electric heater will lead to the stability of the fluid in the internal electric heating device, that is, the fluid is not flowing or has little fluidity, or the flow rate is stable, resulting in a greatly weakened vibration performance of the coil, which affects Coil descaling and heatin...

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Problems solved by technology

[0003] However, it is found in the application that the continuous heating of the electric heater will lead to the stability of the fluid in the internal electric heating device, that is, the fluid is not flowing or has little fluidity, or the flow rate is stable, resulting in a greatly weakened vibration performance of the coil, which affects Coil descaling and heating efficiency

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