Water heater capable of saving energy and water

Abstract

The invention discloses a water heater capable of saving energy and water. The water heater comprises a water tank which is provided with a water inlet and a water outlet; a pipeline at the water outlet of the water tank is internally provided with a first temperature sensor, and the water outlet of the water tank communicates with the water inlet end of a three-way magnetic valve, one outlet of the three-way magnetic valve is led to a hot water output end through a second temperature sensor, and the other outlet of the three-way magnetic valve communicates with a water storage tank through a supercooled water pipeline; the downstream position of the second temperature sensor is further provided with a control valve, one outlet of the control valve is led to the hot water output end, and the other outlet of the control valve communicates with the water storage tank through a superheated water pipeline; and the first temperature sensor, the second temperature sensor, the three-way magnetic valve and the control valve are all electrically connected with a PLC. According to the water heater capable of saving the energy and the water, supercooled water and superheated water which do not meet the ideal water temperature are recycled and stored in the water storage tank, so that the temperature of the water in the water storage tank is adjusted, the recycled supercooled water and the recycled superheated water can be used for meeting the living requirements for cloth washing and easy washing, and the water saving effect is achieved; and in addition, heat of the superheated water is recycled and supplied to the supercooled water, and the energy saving effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of electrical appliances, and in particular relates to an energy-saving and water-saving water heater. Background technique [0002] At present, the installation rate of water heaters is extremely high, ranging from school dormitories and factory buildings to small household users. But every time hot water is needed for domestic use, a large amount of cold water must be released before the water temperature can gradually reach the hot water temperature standard. This is mainly due to the cold water left in the outlet pipe or the outdoor temperature. waste of water resources. Moreover, there are a large number of school students and factory workers, and the time needed for domestic hot water is not fixed. When the water tank is filled with hot water, the hot water near the water inlet and outlet of the water tank will easily exchange heat with the outside world, and the As time goes by, the water temperatur...

AI Technical Summary

Problems solved by technology

But every time hot water is needed for domestic use, a large amount of cold water must be released before the water temperature can gradually reach the hot water temperature standard. This is mainly due to the cold water left in the outlet pipe or the outdoor temperature. waste of water

Moreover, there are a large number of school students and factory workers, and the time needed for domestic hot water is not fixed. When the water tank is filled with hot water, the hot water near the water inlet and outlet of the water tank will easily exchange heat with the outside world, and the As time goes by, the water temperature will gradually drop, so that the user will always release the colder stored water first when using the water heater after the water temperature is lost, especially in winter, the waste of water resources is even more serious

Moreover, after the user finishes putting in the cold water, the outlet water is likely to become hot and hot rapidly, and this part of the overheated water resource is also wasted

Images