125 MW TURBINE UNIT MODIFIED WITH AJUSTABLE SEALING

doi:10.19666/j.rlfd.2001.01.017

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125 MW TURBINE UNIT MODIFIED WITH AJUSTABLE SEALING

Thermal Power Generation Issue 1, Pages: 55-56(2001)

更新时间：2025-09-28

- 125 MW TURBINE UNIT MODIFIED WITH AJUSTABLE SEALING
- 作者机构：
  
  遵义发电厂,贵州,遵义,563000
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2001.01.017
  CLC： TK263
- Published：2001
- 稿件说明：
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125 MW TURBINE UNIT MODIFIED WITH AJUSTABLE SEALING[J]. Thermal Power Generation, 2001, (1): 55-56.
DOI：

125 MW TURBINE UNIT MODIFIED WITH AJUSTABLE SEALING[J]. Thermal Power Generation, 2001, (1): 55-56. DOI： 10.19666/j.rlfd.2001.01.017.

摘要

遵义发电厂 8号汽轮机为上海汽轮机厂生产的A151型超高压、中间再热式汽轮机

1992年8月投产。 1997年 7月在第二次大修中引进了美国布莱登可调式汽封

对其高、中压汽封及叶顶汽封进行改造。经过运行实践证明 :可调式汽封有效地防止了汽轮机开机过程中可能产生的动静摩擦

避免了由此产生的大轴弯曲

提高了汽轮机的热效率

降低了煤耗。

Abstract

Unit No.8 of Zhunyi power plant is a superpressure reheat turbine（A151） manufactured by Shanghai Turbine Works

which was commissioned in August 1992.Its h.p.and m.p.sealing glands and blade tip sealing were modified with an American adjustable sealing.It has been approved by operation that.with this kind of American sealing

the friction between moving and stationary parts of turbine during start-up can be prevented

thus avoiding shaft bending and improving trubine effciency.

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