Pump circulation water heater

Abstract

The invention belongs to the field of water heaters, and particularly relates to an electric water heater. According to the water heater, a water pump circulation mode is adopted, water in an inner container is pumped into a heating unit to be heated and then flows back into the inner container, two heating modes of instant heating and heat storage are achieved, and a water pump does not work during instant heating; through further upgrading, the proportion of cold water and hot water entering the hearing unit can be adjusted to achieve constant-temperature water outlet, two waterways can be provided for supplying water outwards, one waterway passes through the heating unit, and the other waterway directly flows out of the inner container, and two paths of water supply with different watertemperatures, one path is high-temperature and the other path is constant-temperature can be realized. The water heater aims to realize two heating modes of instant heating and heat storage, realizea compatibilization effect, simultaneously realize high-temperature water outlet and constant-temperature water outlet, and play a compatibilization effect when in a heat storage mode; if the temperature of water stored in the inner container is controlled to be 55 DEG C or below, the problem of scaling can be solved; and due to the capacity increasing effect of the structure, the inner containercan be heated to 55 DEG C, and the using effect of about 75 DEG C can also be achieved.

Description

technical field [0001] The invention belongs to the field of water heaters, in particular to a novel electric water heater. Background technique [0002] Traditional electric water storage water heaters need long-term heat preservation, which wastes energy, and because the hot water output rate of storage water heaters is generally 60%, it requires a larger volume or higher temperature to meet the bathing requirements. If the water quality is hard, the inner tank Temperatures above 60 degrees can also lead to scaling problems. The present invention provides a new technical solution to solve the above problems, which can simultaneously realize instant heat and heat storage effects. When the temperature is high, the inner tank does not need to be preheated and kept warm, and it is not necessary to repeatedly heat and keep warm for a long time in winter. At the same time, in some specific purposes, such as small kitchen treasures, due to the small amount of water in a single t...

AI Technical Summary

Problems solved by technology

However, the problem with the above option 1 is that there are two sets of heating systems, not only the cost is high, but also the electronic control is relatively cumbersome, and it is more prone to failure. Some manufacturers who use this solution are slowly giving up; option 2 has been tested by the market for two years. The overall effect is good. In the early stage, due to the structure of the energy-gathering cavity, the thermal effect is average. Due to the temperature difference of the primary heat exchange, there is still room for improvement in the capacity increase effect.

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