《Электрические станции》2007年10月号报道了在汽轮机制造业发展过程中曲径式密封的完善。在普通的密封中,由于不可避免的擦伤,发现运行的径向间隙值比安装值大0.5~1.0mm。这时,密封尖端的尖边被磨钝,在运行过程中普通密封中的漏泄量显著增加,然而保证无 “Электрические станции” October 2007 reports on the improvement of the labyrinth seal during the steam turbine manufacturing process. In a normal seal, the running radial clearance was found to be 0.5 to 1.0 mm greater than the installed value due to the inevitable galling. At this point, the tip of the sealing tip is blunt and the leakage in the normal seal significantly increases during operation, however,