Water storage type electric water heater

Abstract

The invention relates to a water storage type electric water heater, which includes a housing, a heater, an inner container, a temperature sensor, a circuit board, a first water outlet pipe, a water inlet pipe and a water mixing valve. The water storage type electric water heater is characterized in that a second water outlet pipe is also arranged at the bottom of the inner container; a water inlet of the second water outlet pipe is located at the middle part of the inner container; the water outlet of the second water outlet pipe passes through the housing, and is communicated with a bypass pipe of a second tee through a normally closed electromagnetic valve; the second tee is arranged on a pipeline between a normally open electromagnetic valve and a cold water inlet of the water mixing valve; and the normally closed electromagnetic valve, the normally open electromagnetic valve, a water flow sensor and the automatic water mixing valve are connected to the circuit board through leads. The water storage type electric water heater adopts the structure of double water outlet pipes, utilizes heated hot water in the inner container at the utmost, improves the hot water output, solves the problem that the hot water utilization rate of the water storage type water heater is low, and saves the energy.

Description

technical field [0001] The invention relates to a water storage type electric water heater, which belongs to the improvement technology of the water storage type electric water heater. Background technique [0002] In the prior art water storage type electric water heater, a water outlet pipe and a water inlet pipe are installed at the bottom of the tank, and a water mixing valve is installed between the water outlet pipe and the water inlet pipe, and the water outlet of the water outlet pipe communicates with the hot water inlet of the water mixing valve. The water inlet of the water inlet pipe is connected with the cold water inlet of the water mixing valve, and a normally open solenoid valve is installed between the water inlet of the water inlet pipe and the cold water inlet of the water mixing valve. After the water heater is heated, when the user uses it, the cold water before entering the water inlet pipe The hot water from the outlet pipe is mixed with the water mixi...

AI Technical Summary

Problems solved by technology

However, the water heater with the above structure has the following defects: because the inlet water temperature is low and the cold water mixes with the hot water in the inner tank after entering the inner tank from the water inlet pipe, when the outlet water temperature does not meet the use requirements, the mixed warm water in the inner tank will be damaged. The temperature is much higher than that of the incoming water, resulting in a low utilization rate of hot water, which cannot meet the requirements of water consumption and wastes energy

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