It is about the ring screw thread smoke channel of the boiler shell type gas tube in the boiler field.
锅壳式烟管锅炉烟管内置水管的环形螺纹烟道，它涉及锅炉领域。
2
In addition, the effect of the reverse circulation in a bayonet tubetype waste heat boiler on the safe operation of the apparatus is also discussed.
此外，本文还从工质流动特性上讨论了刺刀管式废热锅炉发生逆循环对于设备安全运行的影响。
3
Causes bring on the burst tube in the front screen overheater of WGZ670/13.7-8 typeboiler at the Selfbuilt Power Plant by WISCO are analyzed and preventatives raised in the paper.