Continuous effluent water high temperature monitor for B, C, D, DR, F, and H piles

摘要

Continuous monitoring of the pile outlet water temperature may offer definite advantages from both the operating efficiency and pile safety points of view. The temperature data could be continuously displayed which would provide Operators with the kind of information required to operate efficiently while remaining within specified tube outlet water temperature limits, and permit tube outlet water temperatures to be continuously in the scram circuit, thus contributing to safety of operations. The most positive protection against flow instability due to localized power surges would be given by a safety system which continuously monitors the effluent from each of the process tubes for temperatures above safe maximums. Such a system would need 2004 controllers and would be relatively expensive and time consuming to install using existing methods of proved instrumentations. However, if the temperature generation of adjacent tubes is closely related, there is a possibility of using a system of fewer controllers in which each ''controller tube'' supervises a number of adjacent tubes. This report outlines a study undertaken to show whether or not such a system might prove feasible. It contains a comparison of two suggested systems, one using one controller monitoring the outlet water temperature for each twenty-five process tubes and another using one controller for each nine process tubes.