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中文摘要: PGT25+动力涡轮在管道运输行业应用广泛，主要作为离心压缩机的原动机。目前动力涡轮运行50 000 h后需返回外方工厂开展大修。描述PGT25 +两级高速动力涡轮国内现场检修工作，对此型号动力涡 轮的工厂大修内容与方法进行了调查，主要包括机匣、护环、涡轮盘、一、二级喷嘴、一、二级动叶、轴及相关轴 承的检修技术以及现场检修更换技术和日常维护检查重点，对指导此型动力涡轮运行与检修以及国产化维 修进程具有一定的指导意义。
Abstract:PGT25 ＋ power turbine is applied widely in industry of pipeline transportation， mainly as original power equipment for
centrifugal compressor. At present，the power turbine need to be returned to original equipment manufacturer for overhaul after 50 000 operation hours. Description of the domestic field maintenance of PGT25＋ two-stage high speed power turbine. The contents and
methods of overhaul of this type of power turbine is investigated. It mainly includes for transition case，shroud，turbine disc，first and
second nozzles，first and second buckets，shaft，bearing of the repairing and exchanging technology in field and maintaining daily. It
has certain guiding significance for operation and maintenance of tlie power turbine，as well as the process of localized maintenance.
keywords: PGT25 ＋ turbine casing nozzle shroud turbine disc bucket shaft bearing
文章编号： 中图分类号：TK478 文献标志码：
基金项目:
| 作者 | 单位 |
| 沈登海 | 国家石油天然气管网集团西部管道有限责任公司 |
| 宋文强 | 国家石油天然气管网集团西部管道有限责任公司 |
| 田永文 | 国家石油天然气管网集团西部管道有限责任公司 |
| 黄伟 | 国家石油天然气管网集团西部管道有限责任公司 |
引用文本：
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.