Waste heat recovery type boiled drinking water electric heater

Abstract

Provided is a waste heat recovery type boiled drinking water electric heater capable of utilizing boiled water waste heat. Spiral tube heat exchange devices are arranged in 2 / 3 spaces of the lower portions of containers A and B with the same structures, one end of each spiral tube is connected with a tap water outlet, the other end of each spiral tube extends into the other container, a tap water electric valve is turned on while hot water in on container is boiled, tap water with lower temperature flows into the spiral tubes and flows out of the other container, and the two containers sequentially perform the same working process. The 1 / 3 boiled water space of the upper portion of each container is not cooled and keeps high temperature, the density of cooled low-temperature boiled water at the lower portion of each container is larger than that of the high-temperature boiled water, and mixing and heat transfer between two portions are very small, so that the high-temperature boiled water and the low-temperature boiled water and the can be simultaneously drunk in the same container, waste heat utilization is achieved by utilizing mutual dependency relation between the containers A and B, and an energy waste phenomenon is decreased.

Description

Technical field: [0001] The technology of the invention relates to an electric heating drinking water device for recovering waste heat of boiled water, and belongs to the technical field of waste heat recovery engineering. Background technique: [0002] Whether at home or in public places, drinking water needs to be heated to 100°C to meet hygienic standards before it can be drunk. But in fact, because the temperature of the hot water is too high for people to drink immediately, it is necessary to cool the 100°C boiled water to a suitable temperature (36.5-60°C). Soaking some food still requires some high-temperature boiling water. At present, the known electric water boilers on the market only boil cold water, and do not consider the energy waste caused by cooling during the drinking process and the demand of some users for high-temperature boiling water. Invention content: [0003] In order to utilize the waste heat of boiled water and reduce energy waste, the present i...

AI Technical Summary

Problems solved by technology

But in fact, because the temperature of the hot water is too high for people to drink immediately, it is necessary to cool the 100°C boiled water to a suitable temperature (36.5-60°C). Soaking certain foods still requires some high-temperature boiling water. At present, the known electric water boilers on the market only boil cold water, and do not consider the energy waste caused by cooling during the drinking process and the demand for high-temperature boiling water by some users.

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