Pressure control method and pressure stabilizing control system

By calculating the pressure deviation value in the nuclear reactor and adjusting the charging and discharging flow rates or controlling the charging and discharging, the problem of poor pressure stabilization effect of the pressurizer was solved, achieving more precise and efficient pressure control and improving the stability of the system.

WO2026130024A1PCT designated stage Publication Date: 2026-06-25CHINA NUCLEAR POWER TECH RES INST CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CHINA NUCLEAR POWER TECH RES INST CO LTD
Filing Date
2025-11-21
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

In existing technologies, pressurizers have poor pressure stabilization performance in nuclear reactors, especially in the case of primary loop system pressure control, where it is difficult to achieve precise and efficient pressure regulation.

Method used

By acquiring the pressure measurement value and pressure set value of the voltage regulator, calculating the pressure deviation value, and adjusting the charging and discharging flow rate or controlling the charging and discharging based on the deviation value, precise control of the voltage regulator pressure can be achieved.

Benefits of technology

It improves the voltage stabilization effect of the voltage stabilization control system, enhances the accuracy and efficiency of pressure control, and reduces the risk of damage to the primary circuit caused by overpressure or underpressure.

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Abstract

A pressure control method and a pressure stabilizing control system. The method comprises: acquiring a pressure measurement value and a pressure setting value of a pressurizer (101); determining a pressure deviation value on the basis of the pressure measurement value and the pressure setting value (102); if the absolute value of the pressure deviation value is less than or equal to a first preset value, regulating the charging flow and the letdown flow of a circuit on the basis of the pressure deviation value and the pressure measurement value, so as to control the pressure of the pressurizer (103); and if the absolute value of the pressure deviation value is greater than the first preset value, on the basis of the pressure deviation value, controlling the pressurizer to inflate or deflate so as to control the pressure of the pressurizer (104). The method and the system can improve the pressure stabilizing effects of pressure stabilizing control systems.
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