辐射管对火筒温度均匀性的影响

Effects of Temperature Uniformity of Radiant Tube on Firebox

为了研究火筒加热炉内置辐射管及其燃烧功率对火筒温度均匀性的影响,采用强制鼓风式燃烧器对火筒加热炉内置辐射管前后火筒温度变化进行试验测试。以大庆油田加热炉为试验对象,对比同一功率下安装辐射管前后火筒的温度变化,以及安装辐射管后不同功率下火筒的温度变化。对比结果显示:燃烧功率为400 k W和700 k W时,加装辐射管后,火筒最大温差分别降为原来的49%和48%,火筒温度明显均匀,大大减少了烧损的可能性,且随着功率的增大,火筒壁温随之增大,温度分布趋势不变。

In order to study the effect of the radiant tube and the influence of combustion power on temperature uniformity of the firebox,an experiment was set up with a forced air blast burner to obtain the temperature variation of the firebox before and after installing a radiant tube in the heater. Based on the Heater in Daqing Oilfield,this experiment was carried out by comparing the temperature variations before and after the radiant tube installation and at different powers. Results illustrate that after installing the radiant tube,the highest temperature difference of the firebox will drop to 49% at 400 k W and 48 % at 700 k W respectively. And the temperature uniformity of the firebox is obviously better than before,which decreased the risk of burning loss of the firebox greatly. The temperature of the firebox increases with the increasing powers,and the distribution trend of the temperature is consistent.