ELIMINATION METHOD OF SCALE ATTACHED ON OUTER SURFACE OF COPPER PIPE FOR EVAPORAIOR

摘要

An evaporator is provided to extend copper pipe lifespan and to save scale removing costs attached in an outer surface of the copper pipe by including a sacrifice electrode, a negative electron-ion detecting sensor, a scale removing controller and a power supply unit. An evaporator(100) comprises a sacrifice electrode(122), a negative electron-ion detecting sensor, a scale removing controller(200) and a power supply unit. The sacrifice electrode is immersed in a pipe cleaning agent stored in a storage tank(102) at the time of removing scale and applies positive electrode to the pipe cleaning agent. The negative electron-ion detecting sensor is attached to a copper pipe and detects negative electron-ion. The scale removing controller receives negative electron-ion data detected in the negative electron-ion detecting sensor and removes scales. The power supply unit supplies power supply to the scale removing controller.