Planning Turbomachinery Overhauls And Documenting The Results

Abstract

The paper covers the subject of overhauling turbomachines with particular emphasis on practical field procedures and proven concepts. It does not dwell on one type of machine, but multi-stage centrifugal compressors and steam turbine drivers will receive most of the coverage. The paper represents data gathered from approximately 30 machine overhauls conducted over the past three years and the efforts of 16-20 engineers with varying levels of experience. Specific examples of what can go wrong are included with correction tips from our experiences. The paper is divided into three main sections. 1.) Planning; 2.) The Actual Overhaul Work and 3.) Documenting the Results and Planning for Future Overhauls. Step-by-step suggestions and recommendations are offered in each section. The paper generalizes in many areas to avoid being a simple rewrite of a given machine manufacturer's manual. It deals with overhaul work from the eyes of the engineer in charge of the work.