化工循环冷却水装置风机节能改造及水质控制研究

发布时间：2018-03-14 13:20

本文选题：循环冷却水　切入点：风机节能改造　出处：《华东理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：能源与环境是当今世界的两大主题,节能减排是我国的基本国策,节约能源、降低成本是企业生存及发展的必由之路。本文针对化工企业耗能的特点,并响应“节能减排”的规划目标,提出了以水动风机代替电动风机的循环水风机节能改造方案。作为核心设备的高效率水轮机,收集进入布水器释放的能量,从而推动风机,节约能源。要确保改造后的水动风机转速满足原系统要求,水轮机输出的有效轴功率应大于原电机轴功率。风机改造的成功需要保证在现有药剂作用下,循环水质不发生较大变化或产生不利于换热设备正常运行的影响。本研究共进行11次试验,采用两种杀菌灭藻剂,并以一种杀菌剂正常投加为主,另外一种间歇投加的方式进行试验以观察循环水中藻类、细菌生长繁殖情况及对循环水系统的影响。后续的试验依托前次试验的试验结果,对循环冷却水中杀菌灭藻剂的量进行调整,以获取最佳的投加量。实验结果表明,循环水风机改造成水轮机后,不同添加量的杀菌灭藻剂对循环水的浊度和磷浓度影响较小,不会增加水垢及藻类的产生。项目改造后,循环水系统冷却风机运行平稳,水质满足系统各项控制指标要求。本文选取惠生(南京)清洁能源股份有限公司的循环冷却水风机节能改造项目进行投资效益评价。节能改造后项目的成本比改造前降低105.8万元／年,改造后的循环水系统具有明显的节能效果,为同类项目节能改造提供了指导依据。
[Abstract]:Energy and environment are two major themes in today's world, energy conservation is a basic national policy, China's energy saving and cost reduction is the only way which must be passed of the survival and development of enterprises. Based on the characteristics of chemical enterprises of energy, and in response to "planning energy-saving emission reduction targets", put forward by the water moving fan instead of electric fan cycle water fan energy-saving renovation project. As a high efficiency turbine core equipment, collected into the water distributor of energy released, thus promoting the fan, energy saving. To ensure that after the transformation of the water driven fan speed to meet the original requirements of the system, effective shaft power of the turbine output power should be greater than the original transformation of fan motor shaft. The success of the need to ensure that the existing chemicals under the action of the circulating water does not change or not conducive to the heat exchanging effect the normal operation of the equipment. This study conducted 11 experiments using two kinds of bactericidal algicide, and A fungicide normal dosage, another way of intermittent dosing test to observe the circulating water algae, and affect the circulating water system of bacteria growth and reproduction. The test results based on the first test of the follow-up, the circulating cooling water sterilization algicide amount is adjusted to obtain the best the dosage. The experimental results show that the circulating water fan into the water turbine after sterilization in different quantity out smaller algicide turbidity and phosphorus concentration of circulating water, will not increase the scale and production of algae. The project is the transformation of circulating water system, cooling fan running smoothly, water quality control indicators meet the system requirements. This paper chooses Wison (Nanjing) clean energy investment benefit evaluation of the Limited by Share Ltd's circulating cooling water fan energy-saving renovation project. Energy saving project cost reduced 1 million 58 thousand yuan over the previous transformation / year, the reformed circulating water system has obvious energy saving effect, which provides guidance for energy-saving reconstruction of similar projects.

【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ051.5

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