A steam generating device internal leakage grading early warning system

By implementing a graded early warning system for internal leaks in the steam generator, the system monitors the moisture concentration and temperature data of the evaporator circuit in real time. Combined with the control device, it automatically adjusts the flow rate and water inlet rate, solving the problem of lagging internal leak monitoring and early warning in traditional systems. This enables early identification and suppression of internal leaks, improving the safety and stability of the system.

CN122129687APending Publication Date: 2026-06-02BLUESTAR BEIJING CHEM MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BLUESTAR BEIJING CHEM MACHINERY
Filing Date
2026-03-31
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional internal leakage monitoring methods mainly rely on macroscopic parameter thresholds such as temperature and pressure on the molten salt side for alarms. The early warning is severely delayed and cannot identify internal leakage in the steam generator in the early stages. Moreover, after the early warning, manual handling or direct shutdown is often required. It is impossible to suppress the situation by adjusting parameters such as flow rate and temperature, which is difficult to meet the requirements of long-term safe operation.

Method used

An internal leakage classification and early warning system is adopted. By acquiring the moisture concentration and temperature data of the molten salt outlet of the evaporator circuit in real time, and combining it with the control device, the system can accurately identify and automatically intervene in the early leakage. It can automatically adjust the flow ratio of the high and low temperature molten salt circuit and the water inlet rate of the evaporator to suppress internal leakage in advance.

Benefits of technology

It significantly extends the emergency response window, reduces the false alarm rate, improves the safety and stability of system operation, and reduces safety accidents such as overpressure and explosion caused by internal leakage.

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Abstract

This application relates to the field of steam generation technology, and more particularly to a graded early warning system for internal leaks in a steam generating unit. The system includes a control device and a steam generating unit. The control device acquires first moisture concentration data at the molten salt outlet of the evaporator circuit in real time. Based on the first moisture concentration data at each sampling moment and an early leak warning strategy, when an early leak is detected, it acquires first temperature data at the molten salt outlet of the evaporator circuit and second temperature data at the mixing tank outlet in real time. Based on the first temperature data, second temperature data, and first moisture concentration data at each sampling moment after the early leak, and the leak development warning strategy, when a leak is detected, it sends a first control command to the high-temperature molten salt circuit, the evaporator circuit, and the low-temperature molten salt circuit, and controls the water inlet rate of the evaporator circuit. This significantly extends the emergency response window and improves the system's operational safety and stability.
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