[1]仇宝云,方涛,刘木秀,等.大型泵站电机轴承间接供水系统冷却计算与优化运行[J].江苏水利,2022,(03):46-51+60.
　QIU Baoyun,FANG Tao,LIU Muxiu,et al.Cooling calculation and optimal operation of indirect water supply system for motor bearing in large pumping station[J].JIANGSU WATER RESOURCES,2022,(03):46-51+60.
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大型泵站电机轴承间接供水系统冷却计算与优化运行()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年03期
页码:
46-51+60
栏目:
水利工程管理
出版日期:
2022-03-29

文章信息/Info

Title:
Cooling calculation and optimal operation of indirect water supply system for motor bearing in large pumping station
文章编号:
1007-7839(2022)03-0046-0006
作者:
仇宝云; 方涛; 刘木秀; 黄晓磊
（扬州大学电气与能源动力工程学院，江苏扬州225127）
Author(s):
QIU Baoyun; FANG Tao; LIU Muxiu; HUANG Xiaolei
（College of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127，China）
关键词:
大型泵站; 电机轴承; 冷却水系统; 传热计算; 优化运行
Keywords:
large pumping station;  motor bearing;  water cooling system;  heat transfer calculation; optimal operation
分类号:
TV675
文献标志码:
B
摘要:
大型泵站电机滑动轴承发热量大，需要冷却水系统冷却，控制轴瓦温度不致烧熔损坏影响泵机组安全运行。为了既要保证轴承运行温度得到控制，又要减少冷却水系统能耗，以大型泵站主电机为对象，计算滑动推力轴承发热量，对轴承-润滑油-油冷却器-冷却水系统进行冷却传热计算，计算预测了间接供水系统不同主机运行台数时的轴瓦运行温度及其规律，提出了冷却水系统的变阀优化运行方案。结果表明，实例泵站冷却水系统恰好能够满足全泵站机组最不利工况下，电机轴承运行温度的控制要求；冷却水进水温度越高，泵站主机开机台数越多，推力轴承瓦温越高；冷却
Abstract:
A cooling water system is required for cooling motor sliding bearings of large pump station for large amount of friction heat to control the bearing bush temperature so as not to cause burning damage and affect safe and reliable operation of the pump unit. In order to not only ensure the operating temperature of the bearing is controlled, but also reduce the energy consumption of the cooling water system, the main motor of the large pumping station is used as the object to calculate the calorific value of the sliding thrust bearing and the cooling heat transfer of bearing-lubricating oil-oil cooler-cooling water system. The operating temperature and law of the bearing bushes in the indirect water supply system with different numbers of main engines are calculated and predicted, and the optimal operation scheme of the variable valve of the cooling water system is proposed. The results show that the cooling water system of the example pumping station can just meet the control requirements of the motor bearing operating temperature under the most unfavorable working conditions of the whole pumping station unit; the higher the inlet temperature of the cooling water, the more the main engine of the pump station is turned on, and the higher the temperature of the thrust bearing pad. The optimized operation of the cooling water system has a significant energy saving effect, which can provide a reference for the design and operation management of the cooling water system for large motors.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2021-11-20
基金项目：国家自然科学基金（52179091，51379182）；江苏省水利科技项目（2019017，2019019）
作者简介：仇宝云（1962—），男，教授，博士生导师，博士，主要从事水泵与泵站研究和教学工作。E-mail：byqiu@yzu.edu.cn
更新日期/Last Update: 2022-03-24