我的订单 | 我的收藏 | 加入收藏 | 返回首页
暖通空调杂志社>期刊目次>2021年>第9期

厦门新机场分布式区域供冷输配二级泵系统定压差方案比选

Constant pressure difference schemes for distributed district cooling transmission secondary pump system of Xiamen New Airport

曹荣光 潘云钢 徐稳龙 韦航
中国建筑设计研究院有限公司

摘要:

基于管网动力学数学模型,定量分析了厦门新机场分布式区域供冷输配二级泵系统在输送管网始端(主管线第一个用户分支处)定压差和末端(最不利用户处)定压差2种不同控制方案下管网泵和用户泵的全年运行工况和总能耗。结果表明,相比末端定压差方案,始端定压差方案的循环泵电动机容量低11.1%,年运行电耗低15.6%,管网泵和用户泵的全年运行效率更高。该工程始端定压差方案具有投资少、运行费低及运行控制相对简单可靠的优点,建议采用。

关键词:区域供冷,二级泵系统,定压差控制,水泵效率,始端定压差,末端定压差

Abstract:

Based on the dynamic mathematical model of pipe network, under the control schemes of constant pressure difference at beginning (the first user branch of the main line) and constant pressure difference at end (the most unfavorable hydraulic user location), quantitatively analyses the annual operating conditions and total energy consumption of the pipeline pumps and user pumps of the distributed district cooling transmission secondary pump system of Xiamen New Airport. The results show that, compared with the scheme of constant pressure difference at end, the circulating pump motor capacity of the scheme of constant pressure difference at beginning is lower by 11.1%, the annual operating power consumption is lower by 15.6%, and the annual operating efficiency of pipeline pumps and user pumps is higher. For the project, the scheme of constant pressure difference at beginning is recommended for its advantages of small investment, low operating cost, and relatively simple and reliable operation control.

Keywords:districtcooling,secondarypumpsystem,constantpressuredifferencecontrol,pumpefficiency,constantpressuredifferenceatbeginning,constantpressuredifferenceatend

    你还没注册?或者没有登录?这篇期刊要求至少是本站的注册会员才能阅读!

    如果你还没注册,请赶紧点此注册吧!

    如果你已经注册但还没登录,请赶紧点此登录吧!