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燃气发电机组的噪声处理

来源:http://www.huannengpower.com   发布于:2017-05-02

燃气发电机组由燃气发动机、发电机、控制柜等部件组成,燃气发动机与发电机安装在同一个钢制底盘上。机组以天然气、井口伴生气、煤矿瓦斯气、水煤气、炼化尾气、沼气、焦炉煤气、高炉煤气等可燃性气体为燃料,启动迅速,经济性好,特别是由于高质量城市生活的需求,燃气发电机组已广泛应用于电信、邮局、银行、图书馆、医院、宾馆等部门。

The gas generator is composed of a gas engine, a generator, a control cabinet, etc. the gas engine and the generator are installed on the same steel chassis. Set to Iguchi Banoike, natural gas, coal mine gas, water gas, refinery tail gas, methane gas, coke oven gas, blast furnace gas and other combustible gas as fuel, start quickly, the economy is good, especially because the demand for high quality of life in the city, the gas turbine has been widely used in telecommunications, post office, bank, library, hospital Hotel and other departments.

机组运行时产生的噪声给城市环境带来了严重的噪声污染,影响了人们的正常工作和生活,也限制了燃气发电机组的广泛应用。针对燃气发电机组噪声污染问题,燃气发电机组厂家的小编提出了一套整改措施,以期降低机组噪声,促进燃气发电机组的推广应用。

燃气发电机组

The noise generated by the operation of the unit brings serious noise pollution to the urban environment, affects the normal work and life of the people, and limits the wide application of the gas generator set. In order to solve the problem of noise pollution of gas generator set, the paper puts forward a set of measures to reduce the noise of the unit, and promote the popularization and application of gas generator set.

1、声源分析

1, sound source analysis

燃气发动机噪声是燃气发电机组的主要噪声来源,燃气发动机噪声可分为空气动力噪声、燃烧噪声、机械噪声、排气噪声和振动噪声。空气动力噪声主要包括进、排气和风扇旋转引起的空气振动噪声,这部分噪声直接向空气中传播。气缸内燃烧所形成的压力振动通过缸盖,机体向外辐射的噪声叫燃烧噪声;活塞对缸套的撞击,配气机构、喷气系统等运动部件产生的撞击振动噪声统称为机械噪声。

Gas engine noise is the main noise source of gas generator set, and the noise of gas engine can be divided into aerodynamic noise, combustion noise, mechanical noise, exhaust noise and vibration noise. The aerodynamic noise mainly includes the air vibration noise caused by the intake, exhaust and fan rotation. The cylinder head vibration by pressure cylinder formed by the body noise radiated noise of the cylinder piston is burning; impact, the impact of vibration noise motion of gas distribution mechanism, jet system and other components are called mechanical noise.

2、改造设计

2, transformation design

基于燃气发电机组的工作原理,难以用降低声源噪声的方法来消声,所以主要是要有效阻断其噪声传播途径。消声技术的核心就是利用声波在传播中自然衰减的规律去缩小噪声的污染面。具体降低噪声的方法有以下几种:吸声、隔声及改变噪声传播方向。

Based on the working principle of the gas generator set, it is difficult to use the method to reduce the noise of the noise source, so it is necessary to effectively block the way of noise transmission. The core of the technology is to reduce the noise pollution surface by using the law of natural attenuation of the sound wave. There are several methods to reduce noise, such as sound absorption, sound insulation and noise propagation.

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