Electric shock preventing device of water heater

Abstract

An electric shock preventing device of a water heater comprises an electric heater, an air and liquid mixing mechanism, a raindrop mechanism, a mixing pipe and an ejector. Air and water are mixed through the air and liquid mixing mechanism, the air and liquid mixing mechanism communicates with the inlet end of the electric heater, the outlet end of the electric heater communicates with the inlet end of the raindrop mechanism, the outlet end of the raindrop mechanism communicates with the mixing pipe, the other end of the mixing pipe communicates with the ejector, and the water is ejected through the ejector. By the adoption of the device, pulsating pressure gas is injected into a stream of pulsating pressure liquid, and when the flow velocity is constant, the air and the liquid are intermittently ejected like raindrops from top to bottom in the raindrop mechanism. The air and the liquid flow into the mixing pipe, due to the density difference and pressure difference of the air and theliquid, the air and the liquid alternately turn over to be in an air-covering liquid state or a liquid-covering air state, the air and the liquid flow intermittently and are separated through water ways, and the purpose of electric shock prevention is achieved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an electric shock prevention device for instant water heaters. Background technique [0002] An electric water heater refers to a water heater that uses electricity as energy for heating. It is one of the three major water heaters alongside gas water heaters and solar water heaters. According to the heating power, electric water heaters can be divided into three types: water storage type (also known as volumetric or heat storage type), instant heating type, and fast heating type (also known as semi-water storage type). Electric water heaters are smaller in size and higher in power, so they are indeed faster than storage-type electric water heaters in terms of heating speed, but they cannot achieve instant heat in spring and autumn, and they need to be preheated, that is, they need to wait. The incident of electric water heater electric shock and injury in life is a fatal p...

AI Technical Summary

Problems solved by technology

[0004] Because of the water quality, the tap water in life is conductive and will produce a certain water resistance. According to this characteristic, the technicians invented the anti-electric wall, which has been widely used in a certain range and reduced the occurrence of accidents; but in some water quality Poor places and their own water pipes are charged, so it is difficult for the anti-electric wall to play a role

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