INSTALLATION AND DEVICE FOR CLEANING FURNACE TUBES OF DIFFERENT DIAMETER FROM COKE DEPOSITS Russian patent published in 2012 - IPC B08B9/04 C10G9/16 

FIELD: oil and gas industry.

SUBSTANCE: invention can be used in oil industry. Installation is designed for furnace with tubes of convective and radiation coil consisting of heating part and soaking section and includes loading, starting and discharging device for scraper, separator-catcher for scraper and carrier flow supply system for scraper that is connected to oil product refining installation. All said devices have inner diameter of pipes equal to soaking section tubes diameter. Starting device is equipped with conical adapter-reducer from starting device tube to heating part of furnace radiation coil. The scraper for cleaning furnace tubes includes head and tail part with scrapers connected between themselves by connecting element. There are at least two umbrella-shaped modules in head part that are formed by flexible framework and dome, the diameter of first module matches the diameter of heating part of furnace radiation coil, and the diameter of the second module matches the diameter of soaking section coil.

EFFECT: due to changeable diameter of umbrella-shaped module invention allows performing joint cleaning of furnace coil tubes of different diameter and thus increasing the efficiency of furnace tubes cleaning process.

13 cl, 7 dwg, 1 tbl