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首页> 外文会议>Annual Joint ISA POWID/EPRI Controls and Instrumentation Conference >Application Criteria for Condensate Pots On Drum Level Measurement
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Application Criteria for Condensate Pots On Drum Level Measurement

机译：冷凝盆对鼓水平测量的应用标准

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Boiler steam drum water level measurement using differential pressure transmitters traditionally include condensate pots located in the reference leg. Originally, the condensate pots or reservoirs were required to provide the additional fluid volume necessary to minimize the errors caused by the high displacement differential pressure transmitters that were in use. Today's differential pressure transmitters essentially have no volume displacement. Based on the earlier design criteria, there is no longer a need to provide condensate pots on the reference leg. Even though there are many successful installations that do not include a condensate pot, they continue to be applied on the majority of installations. Their continued use is rationalized by a number of reasons such as that they provide additional volume to minimize errors from flashing in the reference leg or that they are needed to provide the heat transfer surface needed to condense the steam. This paper will discuss flashing, heat transfer, and cooling of steam as it applies to the application and sizing of condensate pots for use with drum level measurements. The paper will also discuss the overall mechanical installation and freeze protection requirements of the condensate pot, reference leg and sensing leg of the drum level measurement.
机译：锅炉蒸汽鼓水位测量使用差压变送器传统上包括位于参考腿中的冷凝罐。最初，所需的冷凝罐或储存器需要提供额外的液体体积，以最小化由使用的高位移压力变送器引起的误差。今天的差压变送器基本上没有体积位移。基于早期的设计标准，不再需要在参考腿上提供冷凝罐。尽管存在许多成功的安装，但不包括冷凝水锅，它们也继续应用于大多数安装。他们的继续使用是通过许多原因合理化，例如它们提供额外的体积以最小化来自参考腿闪烁的误差，或者它们需要提供冷凝所需的传热表面。本文将讨论闪光，传热和蒸汽的冷却，因为它适用于用于滚筒水平测量的冷凝罐的应用和尺寸。本文还将讨论冷凝水锅，参考腿和滚筒水平测量的传感腿的整体机械安装和冷冻保护要求。

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