Instant electric water heater

Abstract

The invention relates to an instant electric water heater which is characterized in that the water circuit is formed by the series connection of multiple circular interbedded water circuits through communicating tubes, wherein each circular interbedded water circuit is designed to have a heating chamber; and a heating light wave tube is mounted in the heating chamber. In use, heat emitted by the heating light wave tube is transferred to water in the circular interbedded water circuit through the inner layer of the circular interbedded water circuit, so that the water is heated in the flowing process and is subjected to multi-stage heating to reach the water temperature for bath, thus ensuring that the water can be used by a bather. According to the scheme, the light wave tube heating can realize water and electricity separation; and the instant electric water heater is safe and durable, and has the advantages of simple structure, small size, high heat efficiency and high heating speed.

Description

technical field [0001] The invention relates to an instant electric water heater Background technique [0002] At present, there are many kinds of instant electric water heaters in the market, but due to the different heating methods used and the differentiation of each company's own patented technology, there are too many defects in the core component "heating body" of instant electric water heaters, which is concentrated. In the following aspects: 1. The metal heating element, taking the general heating element as an example, the general heating element is not a real separation of water and electricity, and there is a safety hazard. Besides, the heating tube of the general heating element is welded with the stainless steel cup. When the heating tube is broken When it is damaged, it cannot be repaired, and the entire heating element needs to be replaced. According to market research, the failure rate reaches 30%-40%. 2. Non-metallic heating elements Take crystal tubes as a...

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Problems solved by technology

[0002] At present, there are many kinds of instant electric water heaters in the market, but due to the different heating methods used and the differentiation of each company's own patented technology, there are too many defects in the core component "heating body" of instant electric water heaters, which is concentrated. In the following aspects: 1. The metal heating element, taking the general heating element as an example, the general heating element is not a real separation of water and electricity, and there is a safety hazard. Besides, the heating tube of the general heating element is welded with the stainless steel cup. When the heating tube is broken When it is damaged, it cannot be repaired, and the entire heating element needs to be replaced. According to market research, the failure rate reaches 30%-40%.

2. Non-metal heating elements take crystal tubes as an example. Since crystal is a natural and scarce mineral, it is relatively expensive, and the production and processing technology is also difficult, which determines that it cannot be widely used in industrial production.

The heating element of the quartz glass tube can achieve real separation of water and electricity, but its thermal conductivity is poor, which will cause a lot of energy waste in the heating process and low thermal efficiency; Shrinkage and expansion will generate a large twisting stress, which will easily cause the pipe body to burst and shorten the service life; the pipe body has high hardness, but low toughness, and limited pressure bearing capacity. When the tap water pressure is too high, it is easy to break

Therefore, the non-metallic heating element cannot meet the pressure-bearing multi-point central water supply method that most needs at present; the safety hazard of the non-metallic heating element is large. Once the glass tube bursts or cracks, the current on the outer wall of the glass tube will communicate with the water in the glass tube. Make water electrified, endangering life safety

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