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排灌机械工程学报
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排灌机械工程学报  0, Vol. Issue (): 6-    DOI:
泵理论与技术 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
冷却循环水系统节能研究及应用
汤跃 马正军 汤玲迪 张新鹏 黄志攀
(江苏大学 流体机械工程技术研究中心,江苏 镇江 212013)
Energy Saving Research And Application of Circulating Cooling Water Systems
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摘要 为解决循环水系统由于泵的选型不当、工况调节方法不合理、管理不科学,能耗评估困难等原因造成的系统运行效率低下,能源浪费现象严重的问题,以某化工厂循环水系统为对象,通过现场对循环水系统设备安装情况和工厂生产周期内泵的运行工况调研,与泵在变频调速运行下的能耗比较,找出了节能空间,完成了系统的能耗分析和评估。以泵的相似定理为理论基础,结合水泵单体节能和系统节能,制定基于供水泵站变频运行的循环水系统节能供水策略,在满足化工生产工艺需求的前提下实现循环水系统管网典型点的恒压供水。并总结建立一套基于泵外特性曲线、电机负载特性曲线、循环水系统关键点工况数据的循环水系统能源调查方法。该厂循环水系统按照文中节能策略进行改造,通过对能耗的监测和推算,供水泵站年耗电量可由原来的21万千瓦时降为14.07万千瓦时,年节电量近7万千瓦时,节电比例高达33%。
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关键词循环水系统   泵站   变频运行   节能改造   能源审计     
Abstract:  In order to improve the bad condition of circulating cooling water systems such as low efficiency and high energy waste due to incorrect pump selection, unreasonable working condition regulation, unscientific operating management and hard energy consumption evaluation. A chemical circulating water system was taken for object with the procedures as spot investigation on the parameters of equipment installation and the working conditions of the pump station, compared it with the working condition under variable frequency speed regulation and found out the energy saving potential then the energy consumption and evaluation of the whole system was finished. A water supply strategy on energy-saving operation of the circulating water system was established based on the pump affinity low and was combined with components and the whole system. The strategy can meet the process demand and implement the constant pressure water supply at the most adverse point. A method of energy consumption evaluation based on the pump performance curves, motor load curves and data collected was also summarized. After the chemical circulating water system was reconstructed, the annual electric power consumption was reduced from 2.1×104 kWh to 1.4×104kWh, the power-saving proportion was nearly 33% according to the result of energy consumption monitoring.
Key wordscooling water systems   pump station   variable frequency operation   energy saving reconstruction;energy audit   
引用本文:   
. 冷却循环水系统节能研究及应用[J]. 排灌机械工程学报, 0, (): 6-.
. Energy Saving Research And Application of Circulating Cooling Water Systems[J]. Journal of Drainage and Irrigation Machinery Engin, 0, (): 6-.
 
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