汽水混合物在蒸发管内的膜态沸腾问题是亚临界压力电站锅炉水冷壁设计和安全运行中的一个关键技术问题。迄今为止,国外所报导的试验大多是在沿蒸发管周界均匀受热的条件下进行的,与锅炉水冷壁的实际受热工况并不相同。本文介绍在电加热的试验装置上,如何模拟实际锅炉水冷壁单面辐射受热的工作条件和鳍片管膜式水冷壁的结构条件,引述了 The membrane boiling problem of the steam-water mixture in the evaporation tube is a key technical issue in the design and safe operation of the water wall of the subcritical pressure boiler. So far, most of the tests reported abroad are carried out under the condition of uniform heating along the perimeter of the evaporation tube, which is not the same as the actual heating condition of the water wall of the boiler. This article describes how to simulate the actual working conditions of single-side radiant heat of boiler water wall and the structural conditions of finned membrane water wall in the electric heating test device,