Method for detecting leakage of important water system of nuclear power plant
By dividing the critical plant water systems of nuclear power plants into zones and monitoring their pressure values, and combining multiple detection methods, the problem of low leak detection efficiency in critical plant water systems of nuclear power plants was solved, enabling rapid and accurate location of leak points and improving leak detection efficiency and practicality.
CN116858454BActive Publication Date: 2026-06-26YANGJIANG NUCLEAR POWER
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGJIANG NUCLEAR POWER
- Filing Date
- 2023-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
In existing technologies, the leak detection process for critical plant water systems in nuclear power plants is inefficient and cannot quickly and accurately locate the leak point.
Method used
By dividing the important plant water system of the nuclear power plant into zones, the leakage area is determined based on the pressure value changes. Combined with the pressure value change relationship and rate, the leakage location is confirmed by methods such as pump start-up visual inspection, foam leak detection liquid method, wrapping method, water bath method, and ultrasonic leak detection method.
Benefits of technology
It enables rapid and accurate location of leaks, improves leak detection efficiency, and enhances the practicality of leak detection.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116858454B_ABST
Abstract
The application relates to a nuclear power plant important plant water system leakage detection method, which comprises the following steps: S1, different height settings are performed on each connecting component in the nuclear power plant important plant water system, and the nuclear power plant important plant water system is divided into regions according to the height settings to obtain a plurality of system regions; S2, a system region is obtained as a standard region, and a pressure value of the standard region when the nuclear power plant important plant water system is normal is obtained as a standard pressure value; S3, when the nuclear power plant important plant water system is shut down, the real-time pressure value of the standard region is monitored; and S4, when the real-time pressure value changes relative to the standard pressure value, the corresponding system region is obtained as a leakage region according to the real-time pressure value. The application can quickly realize leakage positioning, has high efficiency and strong practicability.
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