摘要
燃燒塔（Flare）為石化工業煉製過程最為廣泛採用的廢氣處理設備，是一種針對緊急或間歇性排放廢氣之連續性燃燒裝置。在操作過程中必須安全燃燒廢氣並符合國家的標準擴散規定，燃燒器（Flare Tip）通常都設在燃燒塔的最頂端。做為燃燒塔之最低要求必須具有維修容易、重量輕、有效燃燒廢氣、避免空氣逆流及排氣管內燃燒或防止向煉製區域回火。因此多重式密封系統（Multi Baffle Fluidic Seal）結構設計非常符合燃燒塔排氣設計之需求。本研究針對燃燒塔之燃燒器新型內部多重式密封系統的結構設計做數值計算。利用數值模擬方法與內部檔板結構的氣體流場分析進行研究與探討。其結果顯示出管內流場之數據可有效提升燃燒塔結構之氣體流動現象。本研究結果證實了利用新型多重式逆流阻管的結構設計可以阻擋掉12級颱風以下之氣體迴流現象，有效處理煉製過程排放之廢氣，避免因外部風速過大而造成空氣逆流並引起廢氣管內燃燒現象。
並列摘要
A flare burner is an exhaust gas solver that can continuously burn off urgent and periodic exhaust gas, which is widely adopted in petrochemical industries. The operating process should be conformed to the Chinese National Standard (CNS). The flare tip is usually at the top of the burner. The requirements of a flare burner are to be easily-repaired, lightweight, effective combustion ability to exhaust gas, and to avoid the air flow back to the purge pipe or to prevent drawing the temper off to the refine area. Therefore, the structure of Multi Baffle Fluidic Seal will meets the requirements.The focus of this research is to discuss the new structure of Multi Baffle Fluidic Seal. Numerical simulation has been applied to analyze the flow field in the internal baffles. The results showed that this structure can effectively improve the gas flow movement, and by validating the new multi anti-backflow pipe. it can help defense a typhoon backflow which has a wind speed of 40 m/s. By dealing with the exhaust gas during the refining process, it helps avoided the internal combustion caused by the exterior severe winds.