冷却塔落水噪声及防治措施.doc

摘要
本论文主要阐述了根据冷却塔噪声的实测结果,就冷却塔噪声的成因、性质及其治理方法进行了分析。介绍了冷却塔分为逆流塔、横流塔、喷雾通风无填料冷却塔、封闭式冷却塔等几种类型的相关内容和冷却塔的基本原理以及冷却塔的性质。冷却塔是集空气动力学、热力学、流体学、化学、生物化学、材料学、静、动态结构力学,加工技术等多种学科为一体的综合产物。对冷却塔落水噪声的检测、冷却塔落水噪声的声源特性、及其落水噪声影响范围的相关内容进行了阐述。并且提出了冷却塔落水噪声治理的基本途径、治理方法和治理冷却塔落水噪声的材料选用。冷却塔的噪声可视为点声源,其治理方法可分为塔内和塔外两条途径。塔内治理可采用冷却塔落水消能降噪装置,塔外治理可采用声屏障方法。
关键词冷却塔;噪声;治理;降低
Abstract
The main thesis of this cooling tower in accordance with the measured results of noise。Cooling towers on the causes of noise, the nature and treatment methods are analyzed 。Introduction into the cooling tower countercurrent tower, cross-flow tower, no filler spray ventilation cooling towers, closed cooling towers and other types of relevant content and the basic principles of cooling towers as well as the nature of the cooling tower 。Cooling towers are set aerodynamics, thermodynamics, fluid science, chemistry, biochemistry, materials science, static and dynamic structural mechanics, processing technology, a variety of disciplines for an integrated product。Noise of the cooling tower water testing, cooling tower water noise characteristics of the sound source, and its noise impact on the scope of water-related content on the。And made a water cooling tower of the basic approach to noise management, governance and management of water cooling tower noise Materials Selection。Cooling tower can be seen as points of the noise sound source, the treatment can be divided into the tower and the tower outside the two ways 。Tower cooling tower water treatment may be noise reduction of energy dissipation devices, outside the control tower could be the sound barrier methods。
KEY WORD cooling tower;noise control;control;Lower
目录
第一章前言 1
第二章冷却塔基本知识 2
第一节冷却塔 2
第二节冷却塔特点 2
一、逆流塔 2
二、横流塔 3
三、喷雾通风无填料冷却塔 3
四、封闭式冷却塔 3
第三节冷却塔的作用及分类 3
一、冷却塔作用 3
二、冷却塔的分类 4
三、各种冷却塔简述 4
第三章冷却塔落水噪声 8
第一节冷却塔落水噪声的检测 8
第二节冷却塔落水噪声的声源特性 8
第三节冷却塔落水噪声的影响范围 8
一、声波的距离衰减规律 8
二、冷却塔为“点声源”的起始位置 9
三、冷却塔噪声影响范围的评估 9
第四章冷却塔噪声治理的基本途径及治理方法 11
第一节治理途径 11
第二节塔内声源的治理 12