The functions of casing for in-situ leaching of uranium,effects of casing wall thickness on bearing force,advantages and application of thin wall casing are discussed,and the practical suggestions to thin wall casing test and application to be conducted in China are proposed.
集国内外地浸采铀套管应用的经验,讨论了地浸采铀钻孔套管的作用,套管壁厚对套管受力的影响,薄壁套管的优势及应用,并对我国开展薄壁套管的试验与应用提出具体的看法。
At present, the method for calculating the tube wall temperature in a furnace chamber is not exact.
针对目前大型煤粉锅炉屏式过热器管壁温度计算不准确的问题,提出了屏式过热器三维管壁温度计算方法。
To fully keep track of the situation regarding the superheater tube wall temperature, a real-time acquisition of the tube wall temperatures inside and outside the furnace and their changes was carried out on a 410 th super-high pressure boiler.
可通过此程序计算得到对流过热器各个管排各部位管壁温度分布 ,并以图形的方式显示烟温、烟速、及过热器管壁温度的立体分布 ,将理论计算结果与试验进行了比较 ,符合较好。
Analyses the operating data and tube wall temperatures recorded under different operating conditions, concludes that the primary causes for the thermal deviations at the heated surfaces of HG-1021/18.
2 -YM8型锅炉存在的热偏差问题 ,结合不同工况下锅炉运行数据和管壁温度记录 ,分析了各级受热面热偏差现象产生的主要原因为吸热量不均和流量分配不均 ,并指出超温管子的位置和运行中危险的部分。
