背压式汽轮机排汽噪声消减

宋儒将

doi:10.19666/j.rlfd.2007.02.025

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背压式汽轮机排汽噪声消减

热力发电 2007年第2期页码：79-81

经验介绍 | 更新时间：2025-05-30

- 背压式汽轮机排汽噪声消减
- ELIMINATION OF STEAM-EXHAUSTING NOISE FOR BACK-PRESSURE STEAM TURBINE
- 作者机构：
  
  大冶有色金属公司冶炼厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.02.025
  中图分类号： TK267
- 纸质出版：2007
- 稿件说明：
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宋儒将. 背压式汽轮机排汽噪声消减[J]. 热力发电, 2007,(2):79-81.

SONG Ru-jiang. ELIMINATION OF STEAM-EXHAUSTING NOISE FOR BACK-PRESSURE STEAM TURBINE[J]. Thermal Power Generation2007, (2): 79-81.
宋儒将. 背压式汽轮机排汽噪声消减[J]. 热力发电, 2007,(2):79-81. DOI： 10.19666/j.rlfd.2007.02.025.

SONG Ru-jiang. ELIMINATION OF STEAM-EXHAUSTING NOISE FOR BACK-PRESSURE STEAM TURBINE[J]. Thermal Power Generation2007, (2): 79-81. DOI： 10.19666/j.rlfd.2007.02.025.

摘要

针对CB3-3.43/0.981/0.49型汽轮机排汽口排汽温度高、流速快等特点

结合抗性消音器和喷雾消音器的消声频率特性

设计出穿孔板式组合型消音器

其可在较宽的频率范围内消除噪声。实践证明

该消音器消音效果明显

可将汽轮机排汽口的噪音由115 dB(A)降至63 dB(A)

使工作环境大为改善

减小了噪声污染。

Abstract

Directing against the features

such as high temperature and rapid flow velocity etc.

of exhaust steam from exhausting outlet of CB3-3.43/0.981/0.49 type steam turbine

a perforated plate type composite silencer has been designed by combining the noise-reducing frequency properties of resistant silencer and atomizing silencer.The designed silencer can eliminate noise in a comparatively wide frequency range.Practice shows that the said silencer has remarkable noise-reducing effectiveness

reducing noise from exhausting outlet of the steam turbine from 115 dB(A) to 63 dB(A)

improving greatly the working environment

decreasing the noise pollution.

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