新型加热法测量流动湿蒸汽湿度的试验技术

提出了流动湿蒸汽湿度的新型加热法测量思想，并以此为依据进行湿度测量装置的设计研制，建立湿蒸汽实验台，并用所研制的测量装置对收缩喷管试验段出口处汽流的湿度进行测量，测量结果表明：新型加热法的思想是可行的，所研制的装置具有相当高的测量精度，可以作为实际透平中汽流湿度在线测量装置的原型。

Experimental Technique Based on the Use of an Innovative Heating Method for the Wetness Measurement of Flowing Wet Steam

Proposed in this paper is a new heating method based innovative technique for the wetness measurement of flowing wet steam. On this basis a wet steam measurement device has been designed and developed, and a wet steam test rig set up. With the help of the above items measurements were taken of the flowing steam wetness at the outlet of a convergent nozzle located in the test section. The measurement results indicate that the innovative heating method is feasible and effective. The measuring device developed on the basis of this method features a fairly high measurement precision. The above device can serve as a prototype for the on line measurement of steam wetness in a steam turbine.