Flare system and method for reducing dust therefrom

摘要

A ground flare system that can enhance the removal rate of dust and other such impurities contained in exhaust gas to be processed. The ground flare system that performs an incineration process on processing target gas and emits the processed gas to the atmosphere includes: a ground flare that combusts the processing target gas; a knock-out drum that is placed upstream of the ground flare and reduces a flow velocity of the processing target gas introduced thereto; a seal drum for backfire prevention placed upstream of the ground flare; a gas introducing pipe that introduces the processing target gas into the knock-out drum and/or the seal drum; and a water film forming unit that is provided inside of the gas introducing pipe and forms a water film of spray water in a direction that intersects with a flow direction of the processing target gas.

主权项

1. A flare system that performs an incineration process on processing target gas and emits the processed gas to an atmosphere, the flare system comprising:
an incineration unit that combusts the processing target gas; a knock-out drum that is placed upstream of the incineration unit and reduces a flow velocity of the processing target gas introduced thereto; a seal drum for backfire prevention placed upstream of the incineration unit; a gas introducing pipe that introduces the processing target gas into at least one of the knock-out drum and the seal drum; and a water film forming unit that is provided inside the gas introducing pipe and forms a water film of spray water in a direction that intersects with a flow direction of the processing target gas, wherein the water film formation unit comprises a plurality of nozzles placed along an inner circumferential surface of the gas introducing pipe so as to form the water film at a plurality of stages in the flow direction of the processing target gas, wherein the plurality of nozzles include an upstream side nozzle and a downstream side nozzle relative to the flow direction of the processing target gas, and wherein the plurality of nozzles are disposed so that particle size of the jetted spray water is gradually larger from the upstream side nozzle to the downstream side nozzle.