발전용 증기터빈 내부간극 관리방안

다국어 초록 (Multilingual Abstract)

This paper presents a control plan of clearances for power plant steam turbine with the characteristics of internal clearances. Internal clearances on the interstage of blades and shaft gland seals on the steam turbine which are installed in tandem compound was changed when the rotor turned in the cylindrical sleeve bearing due to the generation of oil film wedge. This presented concern is very useful to prevent the rubbing damage of seal edge between the fixed and moving parts in steam turbine due to the misalignment at the rotating and stationary parts. This method is applied for the unbalanced clearances distribution to the left and right sides in the turbine casing. A considerable amount of unbalanced clearances distribution trend is determined according to the rotating speed of shaft, bearing size, type of journal bearing, bearing load, lubrication oil viscosity, oil temperature, oil pressure and surface roughness of shaft.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 래버린스 패킹의 구조적 특성
• 3. 터빈 내부 틈새의 분포 특성
• 4. 결론
• 후기
• 참고문헌