喷水消声器降温减噪影响因素数值研究
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- 英文论文题名：Study of Diesel Water Spraying Acoustical Exhaust System
- 论文作者：高雾 ; 张新玉 ; 王天毓 ; 赵宇晶悦
- 英文论文作者：GAO Wu ; ZHANG Xin-yu ; WANG Tian-yu ; ZHAO Yujingyue ; College of Power and Energy Engineering ; Harbin Engineering University
- 年：2016
- 作者机构：哈尔滨工程大学动力与能源工程学院;
- 论文关键词：喷水降温 ; 消声器 ; 排气系统 ; 实验研究
- 英文论文关键词：water spraying ; muffler ; exhaust system ; experimental study
- 会议召开时间：2016-07-28
- 会议录名称：第二十七届全国振动与噪声应用学术会议论文集
- 语种：中文
- 分类号：U664.121
- 学会代码：ZDZD
- 会议名称：第二十七届全国振动与噪声应用学术会议
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国振动工程学会振动与噪声控制专业委员会
- 学会名称：中国振动工程学会振动与噪声控制专业委员会
- 页数：5
- 文件大小：584k
- 原文格式：D
- 会议级别：全国
摘要
船用柴油机在工作过程中会造成大量排气噪声,过高的排气噪声会严重影响船舶的舒适性,通常在船用柴油机排气管路上安装排气消声器用以消减柴油机排气噪声。降低柴油机排气温度有助于实现船舶红外隐身。针对如何降低柴油机排气温度的同时大幅降低柴油机排气噪声,本文设计并研究喷水消声柴油机排气系统。喷水降温消声器是喷水消声柴油机排气系统重要组成部分,本文所设计喷水降温消声器以阻抗复合式消声器为载体,内部加装喷嘴,向喷水降温消声器内部喷射高压冷却水水雾以降低排气温度;根据喷水消声柴油机排气系统工作特性设计控制系统,以保证排气系统安全稳定运行。
Marine diesel engine causes a lot of exhaust noise when it is operating. Excessive exhaust noise can affect the comfort of the ship seriously. Exhaust muffler is usually installed in marine diesel exhaust piping to decrease exhaust noise. Reducing exhaust temperature is conducive to achieve infrared stealth. In order to reduce diesel exhaust temperature and exhaust noise at the same time, this paper design water spraying acoustical exhaust system. Water spraying muffler is an important part of water spraying acoustical exhaust system. The water spraying muffler is designed on conventional muffler. There are nozzles installed in water spraying muffler. High-handed water is injected to reduce the exhaust temperature. This paper design control system to ensure the water spraying acoustical exhaust system operating safely and stably.
Marine diesel engine causes a lot of exhaust noise when it is operating. Excessive exhaust noise can affect the comfort of the ship seriously. Exhaust muffler is usually installed in marine diesel exhaust piping to decrease exhaust noise. Reducing exhaust temperature is conducive to achieve infrared stealth. In order to reduce diesel exhaust temperature and exhaust noise at the same time, this paper design water spraying acoustical exhaust system. Water spraying muffler is an important part of water spraying acoustical exhaust system. The water spraying muffler is designed on conventional muffler. There are nozzles installed in water spraying muffler. High-handed water is injected to reduce the exhaust temperature. This paper design control system to ensure the water spraying acoustical exhaust system operating safely and stably.
引文
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[2]张俊佳.船用柴油机排气消声器声学及流体特性研究.哈尔滨工程大学硕士论文,2008
[3]沈淳.球形液滴蒸发的对流传热数值模拟[D].哈尔滨工业大学,2009.
[4]王福军,计算流体动力学分析--CFD软件原理与应用[M].北京:清华大学出版社,2004:7-12.
[5]J.F.Reyes,M.A.Sepúlveda.PM-10 emissions and power of a Diesel engine fueled with crude and refined Biodiesel from salmon oil[J].Fuel,2006,8512:.
[6]袁江涛,金仁喜,杨立,张健.舰船发动机排气管内顺流喷雾降温的CFD分析[J].武汉理工大学学报(交通科学与工程版),2009,02:314-317.
[7]徐杲.水雾降温红外抑制机理数值计算研究[D].上海交通大学,2007.
[8]L.A.Kraai,R.L.Sager,W.E.Hill.Low backpressure straight-through reactive and dissipative muffler.United States Patent,1994:5365025
[9]U.Ingard.On the theory and design of acoustic resonators.The Journal of the Acoustical Society of America,1953,25(6):1037-1061P