Electric water heater with water level controlling function

Abstract

The invention provides an electric water heater with a water level controlling function. The electric water heater comprises a water heater inner container, an electric heater, a cold water inlet pipe, a hot water outlet pipe, a temperature sensor, a water level controller, a flow controller, a flow sensor and a central controller. The flow sensor is used for measuring the flow of water flowing into the water heater inner container. The flow controller is used for controlling the flowing speed of water on the inlet pipe of the water heater, the water level controller is used for measuring the water level of the water heater inner container, the central controller controls the flowing speed of the flow controller according to the measured water level and the measured flow, and therefore the water level of the inner container is guaranteed to maintain a certain height. The electric water heater with the water level controlling function can control the water level according to the measured water level and the measured flow, and the safety of heating is guaranteed.

Description

technical field [0001] The invention belongs to the field of water heaters, in particular to an electric water heater with a water level control function. Background technique [0002] The heating power of the electric water heater commonly used in the family is relatively single at present, generally only has one kind of heating power, and the heating power will not change as the temperature of the water increases. Therefore, in this case, for a water heater with a relatively large heating power, once the heating is started, the temperature of the water will increase rapidly. It leads to rapid expansion of the inner tank, and multiple rapid expansions will easily lead to loosening of the combination between the inner tank and other shell materials, and will also reduce the frequency of use of the inner tank; some water heaters have low heating power, although they will heat up the water The speed is slow, thereby reducing the rapid thermal expansion of the inner tank, but ...

AI Technical Summary

Problems solved by technology

[0002] At present, the heating power of electric water heaters commonly used in households is relatively single. Generally, there is only one heating power, and the heating power will not change with the increase of water temperature.

Therefore, in this case, for a water heater with a relatively large heating power, once the heating is started, the temperature of the water will increase rapidly. It leads to rapid expansion of the inner tank, and multiple rapid expansions will easily lead to loosening of the combination between the inner tank and other shell materials, and will also reduce the frequency of use of the inner tank; some water heaters have low heating power, although they will heat up the water The speed is slow, thereby reducing the rapid thermal expansion of the inner tank, but the heating speed of the overall water is slow, thus affecting the timeliness of use

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