An electric water heater with double water tanks

Abstract

The invention discloses the electric water heater with the double water tanks. The cold water is heated in an upper water tank and then is conveyed to a lower water tank for heat preservation and storage, a water level line arranged on the upper water tank is used for controlling the water supply amount and the injected cold water amount of the upper water tank to the lower water tank, then according to the water level line arranged in the lower water tank, when the water level in the lower water tank process is reduced to the position of the different water level lines, the cold water in theupper water tank begins to heat again, the hot water in the lower water tank is not used up, when the water level of the hot water in the lower water tank is low, the cold water in the upper water tank is heated, so that the water supplementing is carried out on the lower water tank, then the water level in the lower water tank returns to the high position again, the cold water is reinjected intothe upper water tank to facilitate the next heating and use, and the circulation is repeated. Due to the fact that the electric water heater are divided into the upper water tank and the lower water tank, the upper water tank can be used for heating cold water in the use process of the lower water tank, when the water level in the lower water tank is low, water in the upper water tank can be injected into the lower water tank, so that continuous supply of hot water in the lower water tank is guaranteed.

Description

technical field [0001] The invention relates to an electric water heater with double water tanks, belonging to the technical field of electric water heaters. Background technique [0002] Electric water boilers are widely used in stations, schools and hospitals because of their ease of use. There are mainly two types of electric water boilers commonly used at present: one is the single-tank hybrid type, that is, the heating and water supply are in one water tank, that is, the hot water in the water tank will be replenished with cold water at any time during use, so that it cannot Ensure that the water is all hot water, not suitable for direct drinking. The other is the single-box isolation type, that is, the cold water is not replenished before the boiling water in the box is used up, and the cold water is put in after the boiling water is exhausted. Although this method guarantees that the water is boiled water, once the boiled water is used up, a large amount of cold wat...

AI Technical Summary

Problems solved by technology

Although this method guarantees that the water is boiled water, once the boiled water is used up, a large amount of cold water needs to be injected at one time. Due to the large amount of cold water, it takes a long time to heat up, so subsequent users have to wait for a long time before they can get it. Boiled water, which brings more inconvenience to users

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