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最近几年无焰管式加热炉在炼油厂中使用范围有限。该炉用的无焰板式火咀一般要燃烧含氢达60%的炼厂尾气和天然气,因而,操作中经常出现同火以及火焰向火咀的混合室泄漏等不良现象。此外,由于喷咀直径小(最小为2.8毫米),常出现结焦堵塞。苏联伏尔加城炼油厂15座无焰加热炉安装1336个板式无焰火咀(图1),每年约有500个火咀停工。更换火咀很困难,裂解炉炉墙沿竖向分成五格,每格内有四个火咀,单独换一个停工的火咀往往会影
In recent years, flameless tube furnaces have limited use in refineries. The flameless flames used in the furnace generally burn up to 60% of the refinery tail gas and natural gas containing hydrogen, therefore, the operation often has the same fire and flame flames mixing chamber leakage and other undesirable phenomena. In addition, due to the small nozzle diameter (a minimum of 2.8 mm), clogging often occurs. Fifteen flameless furnaces were installed in the Vulgar City refinery in the Soviet Union to install 1336 plate-shaped flameless nozzles (Figure 1), with about 500 torch shutdowns each year. Replacement of fire Tsui is very difficult, cracking furnace wall along the vertical divided into five cells, each cell has four fire Tsui, a separate stop for the fire Tsui will often shadow