| 汽轮发电机组滑油管路高频噪声的消除 |
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| 引用本文： | 龚存忠,靳军,张李伟,朱蕾,张承红.汽轮发电机组滑油管路高频噪声的消除[J].船舶工程,2009,31(Z1). |
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| 作者姓名： | 龚存忠 靳军 张李伟 朱蕾 张承红 |
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| 作者单位： | 上海船舶设备研究所,上海,200031 |
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| 摘 要： | 汽轮发电机组在试验调试期间,滑油管路产生尖叫声,噪声指标大大超出设计要求.通过分析认为滑油管路走向复杂,滑油经节流孔板节流后产生了高频噪声.经过节流孔板结构型式的改造,高频噪声得以消除.利用计算软件对节流孔板进出口附近的滑油流场进行理论计算,结果表明改进的节流孔板降低了滑油在管路中的流速,减弱了滑油流动时产生涡的强度,缩短油流稳定时间和距离,使滑油流动在很短距离内稳定,避免出口出现弯头时产生噪声和振动,达到消除噪声尤其是高频噪声的目的.
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| 关 键 词： | 汽轮发电机组 滑油管路 高频噪声 控制 |
High frequency noise reduction from lubricating oil piping of small turbo generator |
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| GONG Cun-zhong,JIN Jun,ZHANG Li-wei,ZHU Lei,ZHANG Cheng-hong.High frequency noise reduction from lubricating oil piping of small turbo generator[J].Ship Engineering,2009,31(Z1). |
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| Authors: | GONG Cun-zhong JIN Jun ZHANG Li-wei ZHU Lei ZHANG Cheng-hong |
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| Institution: | GONG Cun-zhong,JIN Jun,ZHANG Li-wei,ZHU Lei,ZHANG Cheng-hong(Shanghai Marine Equipment Research Institute,Shanghai 200031,China) |
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| Abstract: | High frequency noise was produced in the lubricating oil piping during the test period of running the turbo generator.The noise target was so beyond the requirements.Through analysis,the high frequency noise was produced when the lubricating oil piping go through the reducing orifice,especially collocation of the lubricating oil piping is of abnormity.After the type of the reducing orifice was changed,the noise was reduced.The flow fields of inlet and outlet of the reducing orifice was calculated by using t... |
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| Keywords: | turbo generator lubricating oil piping high frequency noise control |
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