Electric water heater with water purifying function and water purifying method

Abstract

The invention discloses an electric water heater with a water purifying function. The electric water heater comprises a heating device with a water inlet pipe and a water outlet pipe and further comprises a water purifying device arranged at the water inlet pipe position. The water purifying device comprises a main pipe and a side pipe which are communicated with the water inlet pipe. A purifying filter is arranged on the side pipe, one end of the main pipe is communicated with the side pipe through a water path reversing valve, or the main pipe and the side pipe are provided with water path switches respectively. The water purifying device is provided with two water flow channels, one of the two water flow channels is provided with the purifying filter, so that bathing water can be purified selectively. The heater can purify water effectively, delay water scale generating and guarantee that the bathing water is healthy and safe and is flexible. The service life of filter elements is effectively prolonged, and water purifying cost is reduced. The purifying device has a backwashing function and further guarantees filtering efficiency of the filter elements and water flow rate. A water purifying method of the electric water heater is further provided.

Description

technical field [0001] The invention relates to the technical field of electric water heaters, in particular to an electric water heater with water purification function and a water purification method. Background technique [0002] Due to the continuous development of modern industry, environmental pollution is becoming more and more serious, and the quality of domestic water is getting worse and worse. Some electric water heaters use simple filter mesh filter devices to filter water to improve water quality, but existing electric water heater filter devices can only filter out larger particles of impurities in water, while calcium and magnesium ions in water, and dissolved in water Other harmful substances such as bleaching powder cannot be effectively filtered out, and the filtering effect is not ideal. Therefore, during the bathing process, residual chlorine and other harmful substances in the water will also cause damage to the human skin or cause allergies. Since the ...

AI Technical Summary

Problems solved by technology

Some electric water heaters use simple filter mesh filter devices to filter water to improve water quality, but existing electric water heater filter devices can only filter out larger particles of impurities in water, while calcium and magnesium ions in water, and dissolved in water Other harmful substances such as bleaching powder cannot be effectively filtered out, and the filtering effect is not ideal. Therefore, during the bathing process, residual chlorine and other harmful substances in the water will also cause damage to the human skin or cause allergies.

Since the calcium and magnesium ions in the water cannot be filtered out, the consumption rate of the magnesium rods used for the anti-corrosion protection of the inner tank of the electric water heater cannot be delayed, and the calcium and magnesium ions are easily combined with the acid radical ions in the water to form difficult dissolved substances, and stick to the inner tank of the electric water heater to form scale, thus corroding the inner tank

In addition, the existing electric water heater filter device has a small water flow rate, which often cannot meet the water demand

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