| 摘要 |
PURPOSE:To enable the supply of a uniform and pure fuel oil with an appropriate control of the operation of a purifier by providing a fuel oil circulation path having an automatic reverse washing precision filter and an oil densitometer in parallel with a purifier circuit for a inferior fuel oil to always monitor the oil concentration at the inlet of of the filter. CONSTITUTION:A fuel oil purity checking means is provided in parallel with a purifier circuit for an inferior oil mixed with a fluid contact cracked catalyst high in the viscosity and the specific gravity, much in the quantity of sludge or the like and an oil densitometer 3, an automatic reverse washing precision filter 2 and a fuel oil circulation circuit 5 comprising a shift pump 4 are provided sequentially from a service tank 1 filled a purified oil from a fuel oil purifier to always circulate a fuel oil forcibly. Thus, the operation of the fuel oil purifier is controlled appropriately. An effect is provided to trap foreign matters such as catalyst and silica in a purifier oil within the service tank 1. |
