Water pipe type electric water heater for wash and bath

Abstract

The invention relates to a water tube type electric water heater for providing hot water for washroom and bathroom. It includes a control circuit containing high-frequency resonance coil and an iron or stainelss steel water tube with strong high-frequency eddy-current thermal effect, the water inlet of said water tube is communicated with water pool, and water outlet is connected with water tap. Said control circuit also includes a water flow impact type contactless switch. Said invention has the advantages of general electric water heater and gas water heater simultaneously.

Description

technical field [0001] The invention relates to a water heater, especially an electric water heater for washing and bathing. Background technique [0002] There are many kinds of water heaters for washing and bathing. The advantage of gas water heaters is that you can get hot water for a while after turning on the tap. The advantages. However, the current electric water heaters for washing and bathing all have a very large water tank. In order to reduce the loss of heat, the water tank must be provided with a heat insulation layer without exception, so the manufacturing process is very demanding, which greatly increases the cost; The electric heating tube is immersed in the cold water of the water tank and energized to heat the resistance wire in the electric heating tube, and then the wall of the electric heating tube is heated by radiation conduction, and then the cold water in the water tank is heated to obtain hot water. This energy conversion method has low efficiency ...

AI Technical Summary

Problems solved by technology

However, the current electric water heaters for washing and bathing all have a very large water tank. In order to reduce the loss of heat, the water tank must be provided with a heat insulation layer without exception, so the manufacturing process is very demanding, which greatly increases the cost; The electric heating tube is immersed in the cold water of the water tank and energized to heat the resistance wire in the electric heating tube, and then the wall of the electric heating tube is heated by radiation conduction, and then the cold water in the water tank is heated to obtain hot water. This energy conversion method has low efficiency and is also The sealing and anti-seepage manufacturing process requirements of the electric heating tube are also high; in addition, it takes tens of minutes to wait from the power-on heating to the temperature of the whole box of cold water to the set temperature, which is very inconvenient to use, and if a whole box of hot water is used If it is not finished, energy will be wasted, and the more hot water left, the greater the waste

In fact, in many cases, the hot water in the whole tank is not used continuously until it is exhausted, and objectively there is a large waste of energy

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