Instantaneous preheating dicaryon electric water heater

Abstract

The invention discloses an instantaneous preheating dicaryon electric water heater which comprises a preheating bladder, a preheating pipe, an instantaneous heating bladder and an instantaneous heating pipe, wherein the preheating bladder is connected with a water inlet, the preheating pipe is positioned in the preheating bladder, the instantaneous heating bladder is connected with a water outlet, and the instantaneous heating pipe is positioned in the instantaneous heating bladder; and the preheating bladder and the instantaneous heating bladder are communicated with each other through an upper communicating pipe and a lower communicating pipe. In addition, a sleeve is arranged outside the instantaneous heating pipe, the upper end of the sleeve is open, and the periphery of the lower end is provided with a gap. The invention combines the characteristics of the instantaneous heating electric water heater and the preheating electric water heater, and can realize three different heating modes. The user can select power according to needs to switch the heating modes. The required hot water can be produced in an electric water heater with a small size, thereby meeting the requirements for beautiful appearance, convenience, safety and energy saving.

Description

technical field [0001] The invention relates to the field of electric water heaters. More specifically, the present invention relates to a pre-instant dual-core electric water heater. Background technique [0002] Existing electric water heaters are mainly divided into instant heating type and preheating type according to heating methods. Among them, the preheating type electric water heater can heat and store water in advance, has low power and large water volume, but has a large volume and long heating time, and needs to be heated for at least 1 hour in advance, so it cannot be used immediately. The instant electric water heater can be used immediately, fast heating, small size, and easy to use, but it is greatly affected by the ambient temperature, especially in the northern winter when the water temperature is not enough. To achieve the ideal water temperature, the power is generally 6-8 kilowatts , General household wires are not suitable for installation and use. ...

AI Technical Summary

Problems solved by technology

The problem that this water heater exists is: (1) the instant heat heating tube power must be big, and easy fouling is easy dry burning

Since the water heater is used as an instant water heater in the second working mode, the instant heating tube must have a large power, generally 4.5 kW to 8 kW, which consumes a lot of energy.

And the instant heating tube is installed on the top of the instant heating liner. Due to the local high temperature, it is easy to dry and scale the heating tube, which seriously affects the safety of the water heater.

(2) The water mixing effect between the two gallbladders is very poor

That is to say, two inner tanks are designed to achieve the purpose of preheating and instant heating. Due to the poor water mixing effect, its effect is greatly weakened.

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