Water heater and control method thereof

Abstract

The invention discloses a water heater and a control method thereof. The water heater comprises a water tank, a water inlet pipe, a water outlet pipe, a flow sensor, a first temperature sensor, a second temperature sensor, a first electric heating pipe, a second electric heating pipe and a controller, wherein the water inlet pipe is provided with a water inlet located in the water tank, and the water outlet pipe is provided with a water outlet located in the water tank and used for discharging hot water in the water tank; the first temperature sensor is used for detecting the water temperatureat the water inlet, and the first electric heating pipe is arranged at the water inlet; the second temperature sensor is used for detecting the water temperature in the water tank, and the second electric heating pipe is arranged at the water outlet; the flow sensor is arranged on the water outlet pipe; and the first temperature sensor, the second temperature sensor, the first electric heating pipe, the second electric heating pipe and the flow sensor are all electrically connected with the controller. According to the water heater and the control method thereof, low-temperature cold water atthe water inlet can be rapidly heated, hot water can also be discharged rapidly under the condition that the temperature of tap water is low in winter, and an instant heat cleaning function is achieved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a water heater and a control method thereof. Background technique [0002] In current electric water heaters, the electric heating device is usually installed naked in the middle of the inner tank of the water heater. The electric heating tube heats the water stored in the entire inner tank, and the water in the inner tank will heat up as a whole, which causes the water temperature to rise slowly. , so the conventional electric water heater fails to achieve the effect of quickly outputting hot water. At present, some water heaters with instantaneous heating function are also introduced into the market. The instantaneous heating function is that there is another heating rod with higher power near the water outlet, which only heats the flowing water, which can instantly increase the temperature of the outgoing water. However, this kind of instantaneous heat washing function ...

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Problems solved by technology

However, in winter, the temperature of tap water is 10°C to 12°C. At this time, it is necessary to preheat the water in the entire water tank for a period of time so that the temperature near the water outlet reaches a specific value (26°C), that is, it is necessary to wait for a period of time for instantaneous heating before washing. If it works, the instant hot washing function will lose its due effect

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