急~~~请帮我将摘要翻译成英文!50分
来源:百度知道 编辑:UC知道 时间:2024/06/08 22:48:04
本文阐述了输油管道的水击现象及其分类方法,首先简要介绍了当前水击计算的基本理论,该理论主要是将一维非恒定流的基本微分方程组具体化处理得到适用于水击问题的基本方程。其次研究了水击分析方法(包括解析法、图解法和数值法),着重介绍了目前最常用的特征线法,并在此基础上简单介绍了水击分析软件,从设计和操作这两个方面提出了预防和减缓水击的最合理措施。最后以格拉输油管道为研究对象,鉴于其落差大、管道的水力工况多种多样等特点,改造后在全线水击保护控制方面采取了调节阀调节、泄压保护、紧急停泵3种主要保护措施保证管道事故工况时的安全。
[关键词]输油管道 水击理论 水击现象 特征线法 防护措施
我很感谢大家对我问题的关注,但是我要强调一点,必须是人工翻译的!要是你的答案很好,我还会追加分的!
In pipeline system, water hammer is one sort of unsteady flow problem caused by some reason, which is of great importance. And water hammer brings about some badly hydraulic transient phenomena that can lead to damage of system's structure or performance. By studying the pipeline water hammer theory and its analytical methods, we can be targeted to find reasonable and effective protection measures , provide a scientific basis for the operation of pipeline management and technology ,and improve the economic benefits of the in-service pipeline and production pipeline .This paper, after analyzing t and summaring the domestic and foreign History and current situation of water hammer , does further research in the theory and methods of water hammer . The aim of our research is to upgrade pipeline design and management patterns, shorten the design period, improve the design quality, reduce the infrastructures investments and operating management costs and increase the economic,