一、引 言 提高加热炉及加热系统热效率是管道节能技术发展的重大问题。我国长输管道加热原油的加热炉,多为七十年代初建造的,其热效率在70％～75％之间。在开展能耗普查、能量平衡测试的基础上,提高加热炉及加热系统热效率,改善燃烧,直到烟气余热回收利用,采取了一系列的技术措施,收到了良好的经济效果,使炉效提高到80％～85％。 I. INTRODUCTION Improving the thermal efficiency of heating furnaces and heating systems is a major issue in the development of pipeline energy-saving technologies. China’s long-distance pipeline heating crude oil heating furnace, mostly built in the early seventies, the thermal efficiency of 70% to 75%. On the basis of carrying out energy consumption survey and energy balance test, a series of technical measures have been taken to improve the thermal efficiency of the heating furnace and the heating system and improve the combustion until the waste heat recovery and utilization of flue gas has been achieved, and good economic results have been achieved and the furnace efficiency has been raised To 80% to 85%.