一、前言喷射器在工业炉中广泛地用于排烟、燃烧装置及输送高温气体等方面。喷射器计算繁琐尤其有一些参数需反复试算,采用手算计算工作量大且易出错。我们参照《钢铁厂工业炉设计参考资料》有关章节,将计算过程编成程序从而能快速准确地计算出结果,大大方便了设计。程序在编写过程中采用了汉字处理,操作者可根据屏幕上的汉字提示进行操作,运 I. Introduction The ejector is widely used in industrial furnaces for smoke exhaust, combustion equipment and high temperature gas transportation. Injector calculation is cumbersome, in particular, some parameters need to be repeated trial, manual calculation of the workload and error-prone. We refer to the “Steel Factory Industrial Furnace Design Reference” chapter, the calculation process programmed into the results can be quickly and accurately calculated, greatly facilitate the design. Procedures used in the preparation of the Chinese characters processing, the operator can operate on the screen prompted by Chinese characters, Yun