流体机械

2021, v.49;No.585(03) 80-84

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空调水系统等效模型的水力特性理论研究
Theoretical research on hydraulic characteristics of equivalent model of air conditioning water system

毛颖杰;田向宁;
MAO Yingjie;TIAN Xiangning;Design & Research Institute of Hunan University Co.,Ltd.;The Architectural Design &Research Institute of Zhejiang University Co.,Ltd.;

摘要(Abstract):

首先对现有采暖空调系统的输送能耗状况及其存在的问题做了深入分析,采暖空调系统的输送系统可等效为异程或者同程式水力模型。然后分别对异程或者同程式水力模型的能量模型、温度模型及压力模型做了深入研究,发现采暖空调系统的设计模型是导致输送系统"大流量、小温差、高功耗"的根本原因。最后提出一种新型空调输送系统的解决方案——双冷源串联两管制空调系统,该系统通过提高输送系统设计供回水温差的方法解决输送系统"大流量、小温差、高功耗",不仅有效地解决了输送系统"大流量、小温差、高功耗"的问题,而且提高了冷源的效率。
First,the delivery energy consumption and existing problems of the existing heating and air-conditioning system are analyzed.For further analysis,the delivery system of the heating and air-conditioning system can be equivalent to the direct return or reverse return hydraulic model.Second,through the study of energy model,temperature model and pressure model of the direct return and reverse return hydraulic model,it is found the design model of the heating and air conditioning system is the root cause for "large flow,small temperature difference and high power consumption" of the delivery system.At last,a new solution of the air-conditioning delivery system is put forward,which is the tandem double-pipe air conditioning system with double cooling sources.This system solves the problem of "large flow,small temperature difference and high power consumption" of the delivery system by improving the design supply and return water temperature difference of the delivery system.It not only effectively solves the problem of "large flow,small temperature difference and high power consumption" of the delivery system,but also raises the efficiency of cooling source.

关键词(KeyWords): 异程式水力模型;同程式水力模型;大流量小温差;双冷源串联两管制空调系统
direct return hydraulic model;reverse return hydraulic model;large flow and small temperature difference;tandem double-pipe air-conditioning system with double cooling source

Abstract:

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基金项目(Foundation): 2015年浙江省建设科研项目(2015K55)

作者(Author): 毛颖杰;田向宁;
MAO Yingjie;TIAN Xiangning;Design & Research Institute of Hunan University Co.,Ltd.;The Architectural Design &Research Institute of Zhejiang University Co.,Ltd.;

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