凝结水泵的故障及其分析

毕业设计报告（论文）

题 目 凝结水泵的故障及其分析 姓 名 专业班级 指导老师 日 期

凝结水泵的故障及其分析

摘 要

国家“十五计划”对电力工业提出要进一步优化火电机组结构，推进凝结水泵等高新技术应用，并将以410t/h以上循环流化床锅炉完善化和提高整体运行效率为主要内容的大型循环流化床应用作为发电重大示范工程之一。凝结水泵是火力发电厂非常重要的附属设备， 及时处理泵组出现故障， 缩短给水泵组退备检修的时间， 是提高电厂安全稳定运行的重要措施。通过对凝结水泵的典型故障及处理的分析阐述， 为类似给水泵组的故障分析和处理提供借鉴。

关键词：发电厂锅炉，凝结水泵， 故障分析，处理

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CONDENSATE PUMP FAULT AND ANALYSIS

ABSTRACT

National \Tenth Five-Year Plan\for the power industry proposes to further optimize the thermal power structure, and promote high-tech applications such as condensate pumps, and will be 410t / h circulating fluidized bed boiler than perfect and improve overall operating efficiency of large-scale circulation as the main content fluidized bed demonstration project application as one of the major power generation.The condensate pump is a very important power plant auxiliary equipment, the timely processing of pump failure, reducing maintenance to the pump set back the time of preparation, is to improve the plant safe and stable operation of the important measures. Through the condensate pump and treatment of typical failure analysis described as similar to the feed pump failure analysis and processing for reference.

KEY WORDS：power plant boiler, condensate pump, failure analysis, Treatment

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目录

摘 要 ............................................. 1 ABSTRACT ............................................ 2 目录 ................................................ 3 第一章 泵的基本概念及其结构 .......................... 5 泵的定义和分类 ..................................... 5 泵的类型 ........................................... 6 泵的用途 ........................................... 8 第二章 泵的基本参数 .................................. 9 基本参数 ........................................... 9 泵的特性曲线 ...................................... 11 第三章 汽蚀 ........................................ 12 泵的汽蚀 .......................................... 12 汽蚀的发生过程 .................................... 13 泵产生汽蚀时的现象 ................................ 14

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第四章 凝结水泵的故障及其分析 ....................... 15 凝结水泵的使用保养 ................................ 15 第五章 凝结水泵试运方案 ............................. 16 试运目的 .......................................... 16 试运应具备的条件 .................................. 17 试运方法及步骤 .................................... 17 第六章 实例 ........................................ 22 事故经过 .......................................... 22 凝泵运行工况的特点 ................................ 23 凝结水泵存在失压的因素 ............................ 24 凝结水泵失压事故的原因分析 ........................ 25 处理措施 .......................................... 27 预防措施 .......................................... 28 参考文献 ........................................... 29 致 谢 ............................................. 30

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