System and method for automatically setting main steam condensate drain valve closing setpoint of nuclear power plant

An automatic system adjusts condensate drain valve settings based on operating conditions and valve positions to address inefficiencies in nuclear power plants, ensuring reliable condensate discharge and maintaining plant efficiency.

WO2026023788A1 Publication Date: 2026-01-29KOREA HYDRO & NUCLEAR POWER CO LTD
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Patent Information

Application Number
PCT/KR2025/003365
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-25
Filing Date
2025-03-14
Publication Date
2026-01-29

AI Technical Summary

Technical Problem

Nuclear power plants face challenges in efficiently managing condensate discharge due to varying main steam and condenser pressures and different installation positions of condensate drain valves, leading to potential valve failure and decreased power plant efficiency.

Method used

An automatic system and method for setting the closing setting of the main steam condensate drain valve, which adjusts settings based on operating conditions and valve positions, using a control unit to monitor condensate levels and calculate optimal valve operation.

Benefits of technology

Enhances the reliability of condensate discharge, preventing valve failure and maintaining power plant efficiency by applying tailored settings to each condensate drain valve, thereby improving safety and operational stability.

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Abstract

The present invention relates to a system and a method for automatically setting a main steam condensate drain valve closing setpoint of a nuclear power plant, and, specifically, to a system and a method for automatically setting a main steam condensate drain valve closing setpoint of a nuclear power plant, which apply different setpoints to respective condensate drain valves since the pressure of main steam and a condenser of a nuclear power plant varies according to operating conditions such as turbine output, and the discharge speeds of the condensate vary according to the different installation positions of condensate drain valves.
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