Electrode heating boiler

Abstract

The invention discloses an electrode heating boiler. The electrode heating boiler comprises a boiler shell, and a phase electrode and null electrodes arranged in the boiler shell and dipped in an electrolyte; the null electrodes are surrounded at the outer periphery of the phase electrode, and form a heating area with the phase electrode; isolation shields are arranged between the phase electrodeand the null electrodes, and can move up and down in the axial direction of the phase electrode under the effect of a lifting mechanism; a separation plate is arranged at the bottom of the boiler shell for dividing the internal of the boiler shell into a low-temperature area on the lower side and a high-temperature area on the upper side; the separation plate is provided with a guide pipe which ispositioned rightly below the phase electrode and extends into the heating area; the isolation shields can sleeve the guide pipe during downwards moving, and form annular water flow gaps with the guide pipe; the low-temperature area is connected with a water inlet pipe; and the separation plate is provided with through holes communicating with the low-temperature area and an inner cavity of the guide pipe. The electrode heating boiler is stable and reliable in work.

Description

technical field [0001] The electric heating technical field of the present invention is specifically an electrode heating boiler. Background technique [0002] The electrode heating technology uses the conductivity of the medium to directly heat the medium, which has the advantages of high thermal efficiency and fast response speed of electric heating, so it has a good application prospect in high-power electric boilers. Electrode heating is based on the electrochemical principle, applying a voltage between the electrodes, and the electrolyte between the electrodes undergoes ion migration under the action of an electric field to generate current and heat, and ultimately achieve the purpose of heating. In order to effectively adjust the power of high-power electrode heating boilers, a common method is to adjust the supply of electrolyte between electrodes. Although this method can adjust the electrode heating power in a wide range, it also has the disadvantages of electrolyt...

AI Technical Summary

Problems solved by technology

However, there is a problem in the shield power adjustment mechanism designed with this structure: when the ion migration channel is completely isolated and the output power is zero, the electrolyte flow channel from the phase electrode to the zero electrode is also completely blocked, and the phase electrode will be Because it cannot be immersed in the low-temperature electrolyte, it will burn out due to heat, which will affect the normal use of the entire boiler

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