Isolated electric water heater

Abstract

The invention discloses an isolated electric water heater and relates to the field of electric water heaters. The isolated electric water heater comprises a heating module and a water storage heat insulation module; a circulating water pump is arranged above a water inlet end of the heating module; a water outlet end of the heating module is connected with a water inlet end of the water storage heat insulation module; and a water outlet end of the water storage heat insulation module is connected with a water faucet and is connected with the water inlet end of the heating module through a one-way three-way valve to form a circulating water path. The isolated electric water heater not only can preheat water in a water tank in advance like a water storage type water heater but also can get hot water while being turned on like an instant electric water heater; and as the circulating water pump is embedded in the isolated electric water heater to heat water in the circulating water path, afunction of zero cold water is realized. As the water pipe material of the circulating water path between a heat insulation water storage tank and the water heater is insulated PPR, and water in thewater path has a resistance effect, resistance, voltage dropping and electric isolation effects are realized.

Description

technical field [0001] The invention relates to the field of electric water heaters, in particular to an isolated electric water heater. Background technique [0002] There are several types of existing electric water heaters. One is a storage-type water heater that can store water. There is an insulation layer, which plays a role in heat preservation of the heated water; the other is an instant electric water heater, and the instant electric water heater does not have an inner water storage tank, so the volume is smaller than that of the storage water heater. The heating tube of the electric water heater has a large power, which can instantly heat the flowing water, which has the effect of instant heating. [0003] The disadvantage of the storage type electric water heater is that it needs to be plugged in for heating in advance, and it cannot be used immediately, and there is a danger of electric leakage if the power plug is not unplugged when taking a bath. Although the...

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Problems solved by technology

[0003] The disadvantage of the storage type electric water heater is that it needs to be plugged in for heating in advance, and it cannot be used immediately, and there is a danger of electric leakage if the power plug is not unplugged when taking a bath.

Although the instant electric water heater does not need to be plugged in and preheated in advance, it can be used immediately, but it does not have the water storage function like the water storage water heater. The instant electric water heater has a large power, because when using hot water, it must Plug in the power supply, so there will be hidden dangers of leakage

[0004] When using an electric water heater, turn on the faucet at the water end. Since there is a section of cold water in the water pipe, it takes a period of time for the cold water to come out before the hot water comes out, which wastes both water resources and time.

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