SHMFF去离子水冷却系统制冷升级改造设计  

The Refrigeration Upgrading Design on Deionized Cooling WaterSystem of Steady High Magnetic Field Facilities

作　　者：唐佳丽[1,2] 欧阳峥嵘 石玉洋[1] TANG Jiali;OUYANG Zhengrong;SHI Yuyang(High Magnetic Field Laboratory,Chinese Academy of Sciences,Hefei,230031,China;University of Science and Technology of China,Hefei,230026,China)

机构地区：[1]中国科学院强磁场科学中心,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《低温物理学报》2018年第5期42-45,共4页Low Temperature Physical Letters

基　　金：SHMFF去离子水冷却系统维修改造项目(编号:DSS-WXGZ-2018-0002)资助的课题

摘　　要：稳态强磁场实验装置去离子水冷却系统是保障水冷磁体稳定运行的必要技术装备系统之一.由于越来越多科学实验的开展,冷冻水蓄冷量不足的问题凸显,严重制约了水冷磁体的运行机时.本文介绍了去离子水冷却系统升级改造的方案设计及具体措施.采用优化设计的布水器,将现有蓄冷量增加一倍;为维持较短的制冷时间,新增大温差离心式冷水机组,与现有制冷机组并联使用;为了改善制冷系统的高耗能特性,增加闭式冷却塔在秋冬季节使用,系统可根据不同的湿球温度及回水温度,选择不同的制冷模式,让其取代冷水机组或其部分负荷使用,实现节能的目的.Deionized cooling water system of steady high magnetic field facilities is one of the most important technology and equipment system for the resistive magnet operation.The insufficient of chilled water storage capacity restrict the resistive magnet operating time.The scheme design and specific measures of deionized cooling water system upgrading were introduced in this paper.The optimized diffuser design will be used in another chilled water storage tank,and the storage capacity will be doubled.A large temperature difference chiller will be added in this system to keep a short refrigeration time and it can operate with the existing chillers in parallel.The closed circuit cooling tower will be used in winter to improve the high energy consumption of the refrigeration system. Different operation mode can be chosen according to different wet bulb temperature and return water temperature and all or part of the chiller load will be replaced by the tower.

关 键 词：制冷系统 布水器 闭式冷却塔 节能 

分 类 号：TB657[一般工业技术—制冷工程]