发电机废气治理设计.doc

1、摘要柴油发电机是一种把燃油的化学能转化为电能的机电一体化设备。在现代化程度日益提高的今天，特别是随着计算机网络以及通讯事业的蓬勃发展，设备对于电力供应可靠性的要求也日益增强，这样就使得柴油发电机有了广阔的发展空间。但是柴油发电机在为人们提供便利的同时，也因为机组自身存在的噪声、排放等问题影响着我们的生存环境以及人们的工作和生活。随着人们对环境要求的逐渐提高，如何解决并克服上述问题就成为柴油发电机应用和发展的关键。 本工程设计主要为柴油发电机的机房通风、噪声控制、尾气净化以及尾气余热回收等一系列相关工程进行设计。结合已有的工程项目，对发电机排出的尾气黑烟，目前的常规做法是采用旋流板水洗喷淋法。本

2、设计对传统的旋流板喷淋法进行改良，对除尘脱硫塔所用旋流板的层次和偏转角度等进行了优化设计，雾化喷嘴采用特别设计的旋流式无阻塞喷嘴，解决了易堵塞、旋流板阻力损失大等关键技术问题。此外，本设计还有一个突出的特点，就是利用热交换器有效地实现了烟气的余热回收。关键词：柴油发电机，机房通风，噪声控制，尾气净化，旋流板水洗喷淋AbstractDiesel generator is an integrative equipment that changes the diesel oils chemical energy into electric energy. In the increasingly mo

3、dern today, especially with the vigorous development of computers network and communication career, the reliability of the electric power accommodation for the equipment needed to be improved. It will come into a truth that diesel generator will win an extensive application in the market. Meanwhile,

4、 the generators exhaust gas and noise destroy our environment and bother our life and work. With the high demand of the environment, how to solve the problems has become the key for the diesel generators application and development.This paper is mostly designed for the diesel generators room aeratio

5、n、noise control、flue gas purification and recycle of the remnant heat. Combining the present projects, the conventional mean of the generator exhaust gas purification is cyclonic spray scrubber. And this project has improved the conventional cyclonic spray techniques, including the optimization of t

6、he tower plates arrangement and spiral angle. And it introduces the non-plugging spray nozzle instead of the atomization nozzle, which is specially designed for the project. These improvements solve the key technical problems such as easy blocking and great loss of spiral flow plate resistance. Besi

7、des, this project presents a new point, which is recycling the exhaust gas heat by using the heat exchanger.Key words: Diesel generator, Diesel generators room aeration, Noise control, Exhaust gas purification, Cyclonic spray scrubber 目 录1 绪论11.1 课题背景及目的11.2 废气处理技术21.2.1 烟气脱硫21.2.2 烟气脱硝41.2.3 烟气除尘51

8、.3 论文研究内容62 柴油发电机尾气处理设计72.1 设计依据及标准72.1.1 设计依据72.1.2 烟气量和污染物浓度72.1.3 设计原则72.1.4 设计范围82.1.5 设计目标82.2 方案设计与工艺流程简介82.2.1 处理工艺的选定82.2.2 工艺流程92.2.3 工艺说明92.3 工艺计算和设备技术参数122.3.1 尾气气压计算122.3.2 旋流板喷淋塔（不锈钢）132.3.3 丝网除雾器142.3.4 循环水泵（不锈钢）152.3.5 循环水槽152.3.6 溶碱槽162.3.7 管道计算162.3.8 引风机182.3.9 系统控制193 发电机机房通风和噪声控制

9、193.1 机房通风和噪声源193.2 设计依据及标准203.2.1 设计依据203.2.2 设计标准203.3 设计计算与作用原理203.3.1 机组通风系统203.3.2 机房噪声控制措施214 工程投资概算244.1 工程投资概算依据与原则244.2 工程投资概算244.2.1 管道工程投资概算244.2.2 烟气净化系统的其他装置设备概算254.2.3 总投资概算264.3 运行费用26总结27参考文献28致谢30CONTENTS1 Introduction11.1 Background and Intention of this Research11.2 Exhaust Gas Pu

10、rification Technology21.2.1 Exhaust Gas Desulphurization21.2.2 Exhaust Gas Nitrogen Oxide Reduction41.2.3 Exhaust Gas Dedusting51.3 Content of the Study62 Design of the Diesel Generator Exhaust Gas Purification72.1 Gist and Standard of the Design72.1.1 Gist of Design72.1.2 Flux of Exhaust Gas and Co

11、ncentration of Pollutions72.1.3 Principle of Design72.1.4 Range of Design82.1.5 Objective of Design82.2 Design of the Project and the Brief Introduction of Technological Process82.2.1 Selection of Technology82.2.2 Technological Process92.2.3 Illumination of Technology92.3 Calculation and Parameter o

12、f the Equipment122.3.1 Calculation of Pressure122.3.2 Calculation of Cyclonic Spray Scrubber（Stainless Steel）132.3.3 Calculation of Silk Screen Demister142.3.4 Recirculation Pump（Stainless Steel）152.3.5 Cycling Gullet152.3.6 Trough of Alkali Dissolving162.3.7 Calculation of Pipeline172.3.8 Type Sele

13、ction of Fan182.3.9 System Control193 Aeration of the Diesel Generator Room and Noise Control203.1 Aeration of the Diesel Generator Room and the Source of Noise203.2 Gist and Standard of the Design203.2.1 Gist of the Design203.2.2 Standard of the Design203.3 Calculation and Principle213.3.1 Aeration

14、 System213.3.2 Noise Control Technology214 Budgetary Estimate of the Project Investment244.1 Gist and Principle of the Budgetary Estimate of Project Investment244.2 Budgetary Estimate of the Project Investment244.2.1 Pipeline of Budgetary Estimate of Project Investment244.2.2 Other Equipments of Bud

15、getary Estimate of Project Investment254.2.3 Total Budgetary Estimate of the Project Investment264.3 Cost of Operating26Conclusion27References28Acknowledge30301 绪 论1.1 课题背景及目的随着社会的发展，人民生活水平的提高，在现代民用建筑当中，用电设备的种类和数量越来越多，在这些用电设备当中，不仅有消防泵、喷淋泵等消防设备，还有需要可靠供电的生活泵、电梯等用电设备，为满足这些设备用电的可靠性，当市政电网无法提供两路独立电源时，在设计中采用柴油发电机组作为备用电源的方法被普遍采用。柴油机