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一、引言 我国第一座恒压喷灌试验工程的建设任务。要求我们对各种水锤问题进行分析研究和计算,以便估价水锤压力对管网的危害程度和对泵站运行的影响,寻求控制水锤压力的有效方法从而创造一个“恒压”条件,以实现恒压供水、喷洒质量好和确保泵站高效经济运行及管网安全之目的。为此用特征线法分析研究管网水锤的发生、发展及如何控制水锤压力是解决上述问题的关键,本文是我们的部分研究成果。恒压喷灌试验工程系统示意图如图1,它是一个随机用水系统,即泵站供水是根据管网用水量的变化而变化的,并始终保持需供平衡。
First, the introduction of China’s first constant pressure sprinkler test construction tasks. We are required to analyze and calculate all kinds of water hammer problems in order to estimate the extent of the water hammer pressure on the pipe network and the impact on the pumping station operation and seek an effective way to control the water hammer pressure so as to create a “constant pressure” In order to achieve constant pressure water supply, spray good quality and ensure efficient and economical operation of pump stations and pipe network safety purposes. Therefore, it is the key to solve the above problems by using the characteristic line method to analyze the occurrence and development of water hammer in pipe network and how to control the water hammer pressure. This article is a part of our research results. Constant pressure sprinkler test engineering system diagram shown in Figure 1, it is a random water system, that is, pumping station water supply is based on changes in pipe network water consumption changes, and always need to balance.