• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ASME Power Conference 2005: Includes Papers from the 2005 International Conference on Power Engineering(ICOPE) pt.A >IS INSUFFICIENT NPSH AVAILABLE ALWAYS THE CAUSE OF CAVITATION IN CENTRIFUGAL PUMPS?
【24h】

IS INSUFFICIENT NPSH AVAILABLE ALWAYS THE CAUSE OF CAVITATION IN CENTRIFUGAL PUMPS?

机译：离心泵中是否总是存在空化的NPSH？

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cavitation is often linked to the inability of the system to provide sufficient NPSH to the pump. Pump users often feel safe running a pump if the NPSH required by the pump is below what is available in the system. What is gas entrainment within process fluid and how does it affect pump performance? Is there a connection of entrained gas with cavitation? When flow through the pump is too low, a part of the mechanical energy that is put in for running the pump is converted to pressure energy and the remaining goes to heat the liquid. This raises the liquid temperature and eventually vaporizes it. This vapor stays within the process liquid as bubbles, which causes cavitation. All the above conditions cause cavitation. This paper describes how these conditions develop, and shows how to identify and then rectify them.
机译：空化通常与系统无法为泵提供足够的NPSH有关。如果泵所需的NPSH低于系统中提供的NPSH，则泵用户通常会感到安全运行。什么是工艺流体中的气体夹带？它如何影响泵的性能？夹带气是否与气蚀有关？当通过泵的流量太低时，为使泵运行而投入的机械能的一部分会转换为压力能，其余的则会加热液体。这会升高液体温度并最终使其蒸发。该蒸气以气泡形式留在工艺液体中，从而导致气蚀。以上所有条件都会导致气蚀。本文介绍了这些条件的发展过程，并说明了如何识别并纠正它们。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号