Abstract: Elevated flare system is an important safety facility in petrochemical industry. This paper introduces the engineering design example of a new elevated flare in a refinery of Sinopec, discusses the process design and process calculation of the flare system, the major equipment on flare stack and the ignition system, introduces in detail the calculation and selection of the diameter of flare head and the calculation of flare scrubber, water seal tank and flare stack, and provides some ideas and methods for the design and calculation of elevated flare system

Key words: Torch, Discharge, Scrubber, Water seal tank, Design and calculation