Water heater with variable height setting

Abstract

The invention provides a water heater. The water heater comprises an electric heating device, a first pipe box and a second pipe box are arranged in the height direction, a plurality of coil pipes arearranged in the height direction of the first pipe box, and the pipe diameters of the coil pipes are continuously reduced from top to bottom. According to the water heater, the pipe diameter amplitude of the coil pipes is increased, so that more steam can enter a first box body and a second box body through the upper part, the distribution of the steam in all the coil pipes is guaranteed to be uniform, the heat transfer effect is further enhanced, the overall vibration effect is uniform, the heat exchange effect is improved, and the heat exchange effect and the descaling effect are further improved.

Description

technical field [0001] The invention relates to a hot water generating device, in particular to an intermittent vibration descaling water heater. 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 heati...

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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

[0004] Among the earlier applications of Qingdao University of Science and Technology, (eg application number 2019101874848), see attached Figure 10 , the intermittent heating method is used to make the coil vibrate, but the intermittent heating method will cause the heating to fail for a period of time, resulting in a drop in heating power

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