Method for transferring heat of heat conduction oil above 330⁰C

    The highest grade of the heat conducting oil is currently 350⁰C. This refers to that   allowable temperature is 350⁰C when it is using. But it does not reach 350⁰C when it is long-term use. It should be slightly lower, so the heat conduction oil of 350⁰C is suggested in 330⁰C or blow when it is in long-term use. If the temperature of the long-term use is at 350⁰C, heat conduction oil is easily in high temperature decomposition and oxidation modification. The quality of heat conducting oil drops quickly and easily forms scaling. For the medium of long-term use temperature at or above 350⁰C, it is recommended using diphenyl ether by gas phase heating system and molten salt liquid phase heating system.