硫磺回收装置反应炉燃烧控制设计

Combustion Control Design of Reactor Furnace in Sulfur Recovery Unit

针对硫磺回收装置反应炉的工艺特点,采用配风前馈-反馈控制方案,通过调节主燃烧室风量的大小,确保了酸性气和空气达到合适的比例,进而控制反应炉炉膛温度,有效地提高了硫的转化率。阐述了硫磺反应炉的主风控制和次风控制方案的实现方式,硫磺反应炉燃烧控制确保了酸性气反应炉温度控制的稳定,提高了酸性气中硫化氢的转化率,实际应用表明:硫磺反应炉配风控制方案比较合理,控制效果良好。

According to the process characteristics of sulfur recovery unit reactor furnace, air distribution feedforward-feedback control scheme was applied. Through adjustment of air flow in main combustion chamber, the proper ratio of acidic gas and air can be ensured. The firepot temperature of reactor furnace can be controlled and sulfur conversion is improved efficiently. The realization way of the main air control scheme and the secondary air control scheme is expounded. The stability of temperature control of acidic gas reactor furnace is ensured by sulfur reactor furnace combustion control.The conversion of H2S in acidic gas is improved. The actual application shows that air distribution control scheme of sulfur reactor furnace is rational, control performance is good.