The relations between the acetylene flow rate commonly used in line heating and heating efficiency as well as heating radius were investigated by combining experiments and numerical simulation.

• 通过实验与计算相结合的方法确定水火弯板常用乙炔流量范围内热效率及热源半径与乙炔流量间的关系，并根据热效率及热源半径的取值偏差叶计算结果的影响进行分析。