变流量工况下热源塔的均匀配水研究

论文总字数：26252字

摘 要

本文对热源塔的工作原理、基本构造、应用现状做了相对简要的介绍。同时，配水系统作为热源塔热泵技术中的一项关键技术，其对热源塔的传热传质有较大影响。所以本文着重研究多个热源塔并联使用时，热源塔外部配水管道变流量时的均匀配水情况，并针对计算研究的结果，提出了变径调节和全对称树枝状排布这两种改进措施，并通过计算与图表的形式表明了改进措施相比阀门调节的优越性。除此之外，本文还对两种不同的变径方式进行了比较。

关键词：热源塔、配水系统、变流量、均匀分配

The uniform water distribution of heat source tower under variable flow conditions

03111614 LUOZHUJIAN

Supervised by LIANGCAIHUA

Abstract: This paper introduces the technology of heat source tower heat pump include its working principle, basic structure and application status. Water distribution system is a key technology in the heat source tower heat pump technology. Because the distribution of heat and mass of the heat source tower is greatly affected by the water distribution system. This paper focuses on the structure choice and design problem of the total dry pipe and the branch pipe when multiple heat source towers are used in parallel. And according to results of the research，this paper puts forward two measures that are reducers adjustment and holosymmetric arborized piping and show the advantages of two measures through the calculation and chart. Expect that，this paper compare two different reducers adjustment.

Key Words：heat source tower, water distribution system, variable flow, uniform distribution

目 录

1绪论........................................................................1

1.1概述......................................................................1

1.2开式热源塔的基本构造......................................................1

1.3热源塔热泵技术在暖通空调领域的应用现状....................................2

1.4热源塔的配水系统..........................................................3

1.5本文的工作................................................................3

2热源塔的配水................................................................4

2.1热源塔配水系统的水力数学模型的建立........................................4

2.1.1管式配水系统水力学特性和数学模型的建立..................................4

2.1.2边界条件约定............................................................5

2.1.3流态的确定..............................................................5

2.1.4配水管道的沿程阻力计算..................................................6

2.1.5配水管道的局部阻力计算..................................................6

3理论计算分析................................................................9

3.1阀门调节计算..............................................................9

3.2 阀门调节下的变流量分析...................................................13

3.3变径调节计算.............................................................15

3.4变径调节时的变流量分析...................................................17

3.5两种变径方式的对比.......................................................19

3.6全对称树枝状布置.........................................................21

4总结与展望.................................................................22

4.1总结.....................................................................22

4.2展望.....................................................................22

致谢.........................................................................23

参考文献.....................................................................24

第一章 绪 论

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