大型供水系统节能方式及优化运行研究

发布时间：2018-03-10 00:26

本文选题：大型供水工程　切入点：水泵选型　出处：《太原理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：节能降耗、低碳经济作为整个经济社会发展的趋势,越来越多的被人们所重视起来。同时,节能降耗也是实现我国可持续发展战略的有效途径,是我国有效利用能源发展经济建设所需要遵循的重要原则。水利事业的发展对国民经济的支持功不可没,作为耗能大户的供水行业,其对节能的重视程度也逐渐增加,“绿色水利”、“健康工程”等一系列概念被水利工作者相继提出。由于我国水利资源分布不均匀,为满足地区用水需求,大型供水工程越来越多,比较著名的有“南水北调”工程、“东水西调”工程、东深供水工程、山西省小浪底引黄工程、万家寨引黄工程等。大型供水工程作为调节水资源时空分布的系统工程,为工农业以及居民生活的提供了水源支持；其在防洪、排涝、抗旱减灾等方面发挥着重要作用。山西为解决地区用水问题,对调水工程加大了投入力度,“大水网”的建设便是山西省对水资源利用统一建设、统一调度、统一管理的工作体现,这些工程中有许多与小浪底引黄工程类似的规模较大的供水工程。在这些供水系统设计与运行之中,努力避免能源浪费,提高系统的用能效率,可以使供水工程节能经济,对整山西地区乃至整个国家的节能减排工作有着不可估量的重要作用。本研究以大型供水工程为研究对象,对影响其能量损耗的主要因素进行分析,综合考虑离心泵与管路选型、运行调节方式等因素的组合,以系统效率高与年运行费用最小等为目标函数,提出供水工程的节能优化手段,力求工程经济节能运行,主要研究内容如下： (1)针对大型供水工程节能工作中存在的问题,着重从影响工程经济节能的几个关键点进行研究,从管路合理设计、水泵优化选型、优化运行调节等方面进行研究,分别讨论各要素对整个供水系统节能效果的影响。 (2)在合理确定供水工程工作点的基础之上,以整个系统的效率最高、年运行费用最小为目标函数,建立供水系统管路优化设计、水泵选型、优化运行调节的数学模型,通过对多方案组合结果的对比分析,以得到各个主要设计要素的最优搭配方案,即工程的最优化设计方案。 (3)利用SQL Server2000数据库对数据的强大处理功能,将工程中常用的水泵型号机组参数进行录入,结合Visual Basic6.0语言,将水泵选型、管路优化设计、系统优化运行调节等子功能计算模型进行组合,编写出供水工程节能优化计算软件,以达到对不同设计参数组合之间的快速计算,为供水工程优化节能设计提供良好的辅助计算支持。 (4)以吉县东城提黄工程为研究算例,运用供水工程节能优化计算软件对该工程节能设计进行多种工况方案组合计算,以分析出最经济节能方案,并为工程的节能运行提供优化调节方法,力求提高工程应对变化的处理能力。本研究着重对使用离心泵机组的大型供水工程进行研究,对于轴流泵、混流泵机组的优化节能研究有待进一步探讨,本研究还提出在优化节能中对太阳能、水锤泵等新能源新技术的使用,但未来在供水工程中广泛应用还需学者们进一步探讨。
[Abstract]:Energy saving, low carbon economy as the economic and social development trend, more and more attention by people. At the same time, energy saving is the effective way to realize the sustainable development strategy of our country, our country is required to follow the economic construction of the effective use of energy development to support work principle. The development of water conservancy on national economy not, as the large energy consumption of water supply industry, the importance of energy conservation also increases, "green water", "health" is a series of concepts such as water conservancy workers have been put forward. Because of China's water resources distribution is not uniform, in order to meet the demand of water area, large water supply engineering become more and more the famous "south to North Water Diversion Project," east to west "project, dwss, Xiaolangdi Dam in Shanxi province Yellow River Diversion Project, the YRDP. Large scale water supply project as regulated System engineering of temporal and spatial distribution of water resources, industry and agriculture and the life of the residents provide water support; in flood control, drainage, plays an important role in drought mitigation and so on. In order to solve the water problem in Shanxi area, the water diversion project to increase investment, the construction of "flood network" is the unification of the water resources in Shanxi province the use of unified construction, unified management, scheduling, job performance, and there are many Xiaolangdi Dam River Diversion Project similar large-scale water supply project. These projects in the design and operation of the water supply system, to avoid the waste of energy, improve the efficiency of energy use, can make the water supply project of energy economy, plays an important role the whole area of Shanxi and the whole country's energy-saving emission reduction work.
In this study, a large-scale water supply project as the research object, the main factors affecting the energy loss are analyzed, considering the centrifugal pump and pipeline selection, combination of factors operating regulation mode, with high system efficiency and minimum annual operating cost as the objective function, put forward energy-saving optimization method of water supply project, and strive to project economic operation the main research contents are as follows:
(1) according to the existing energy-saving work in large-scale water supply project, focuses on several key points of Engineering Economic and energy saving, from the rational design of pipeline, pump selection optimization research, optimizing operation regulation, discuss the influence of each factor on the energy saving effect of the whole water supply system.
(2) on the basis of rational determination of water supply engineering work points above, to the whole system efficiency is the highest, the minimum annual cost as the objective function, the establishment of water supply pipeline optimization design, pump selection, optimal operation mathematical model of regulation, through the comparison of multiple combination analysis of the results, to get the optimal design of the main elements of each collocation scheme, engineering optimization design.
(3) using SQL Server2000 database powerful function of data processing, the commonly used model of pump unit parameters in engineering input, combined with Visual Basic6.0 language, the pump selection, pipeline optimization design, system optimization operation regulation function sub combination model, write out the water supply project of energy saving optimization calculation software, in order to achieve the fast the calculation between different combinations of design parameters, provide a good auxiliary calculation support for optimizing the energy saving design of water supply project.
(4) to Jixian Dongcheng mention Huang Engineering as the research example, the use of energy-saving water supply project optimization calculation software for various conditions combined calculation of energy saving design of the project, to identify the most economical energy saving scheme, and provide optimal regulation method for energy saving operation of the project, and strive to improve the ability of handling project to cope with change.
This study focuses on the use of large-scale water supply project for centrifugal pump, axial flow pump, mixed flow pump energy saving optimization research needs further study, this study also proposed in the optimization of solar energy, the use of water hammer pump and other new energy new technology, but the future is in water supply engineering is widely used in need of scholars further discussion.

【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU991;TV674

【参考文献】