Constant-temperature electric water heater with low energy consumption and doubled hot water volume

Abstract

The invention relates to a constant-temperature electric water heater with low energy consumption and doubled hot water volume, which comprises an outer shell, an upper inner liner, a lower inner liner, an instant heating pipe, a preheating pipe, a draining pipe, a water inlet connector , a water outlet connector, a control device, a constant-temperature valve, an instant heating inner liner, a high-temperature hot water pipe, a hot water guide pipe and a cold water guide pipe, wherein the water inlet connector is fixed on the lower inner liner; the cold water guide pipe is communicated with the lower inner liner; the other end of the cold water guide pipe is communicated with the constant-temperature valve; after the high-temperature hot water pipe stretches out of the upper inner liner, the high-temperature hot water pipe is communicated with the constant-temperature valve; one end of a constant-temperature hot water pipe is communicated with the constant-temperature valve while the other end is inserted into the instant heating inner liner. The high-temperature hot water is mixed with several folds of cold water through the constant-temperature valve, the mixed water is put into the instant heating inner liner with the volume being less than 1 liter, the mixed water is reheated to the bathing temperature by the instant heating pipe, the heating time is saved because of the heating efficiency, the multiplied hot water is acquired, and the continuous bathing time of the constant-temperature electric water heater is more than doubled compared with the bathing time of a common water heater.

Description

technical field [0001] The invention relates to an electric water heater, in particular to a heat storage electric water heater. Background technique [0002] In the current prior art, a water storage electric water heater includes a shell, an upper liner, a lower liner, an instant heating pipe, a preheating heat pipe, a sewage pipe, a water inlet interface, a water outlet interface and a control device. The inner tank is arranged parallel to the upper and lower sides, the upper and lower inner tanks are connected, and the sewage pipe is connected with the lower inner tank; the instant heat heating tube and the preheating heating tube are respectively arranged in the upper and lower inner tanks; the control device includes an electric control board, Flow sensor, thyristor and temperature limiter. Existing problem is: when the hot water temperature in the water storage tank is lower than 40oC, basically just can't be used for bathing, must preheat again, and the preheating p...

AI Technical Summary

Problems solved by technology

The problem is: when the temperature of the hot water in the water storage tank is lower than 40oC, basically it cannot be used for bathing, and it must be preheated again, and the preheating process wastes electricity and wastes time waiting

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