Monitoring system for controlling leakage of oil system of thermal power plant

By designing a multi-module leak monitoring system in the oil control system of thermal power plants, including installation, monitoring, confirmation and decoupling of isolation modules, the problems of untimely leakage monitoring and incomplete isolation in the existing technology are solved, real-time monitoring and timely isolation of the oil system are achieved, and the problems of oil level reduction and accident handling lag are avoided.

CN119712249APending Publication Date: 2025-03-28HEBEI HANFENG POWER GENERATION CO LTD
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Patent Information

Application Number
CN202411551575.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The prior art When the oil system is controlled by thermal power plants, the monitoring means are single, the leakage monitoring device is low in reliability, and the alarm is often issued by mistake, there is no automatic isolation equipment, and there is no systematic monitoring device, which leads to the leakage being not discovered and isolated in time, resulting in the continuous decrease of the oil level, the oil replenishment is not timely, the accident handling is lagging, the fault is expanded and the environment is polluted.

Method used

A monitoring system for controlling oil system leakage in thermal power plants is designed, which includes installation module, monitoring module, confirmation module and decoupling isolation module. By installing a leakage monitoring device and an intelligent camera, the flow of the turbine oil system is monitored in real time, the leakage location is confirmed, and a single-sided de-arrangement and oil circuit isolation are carried out, and early warning information is issued to determine the solution strategy.

Benefits of technology

Multi-dimensional monitoring of the oil system is realized, and alarms can be issued as soon as possible and system isolation can be carried out in a timely manner, avoiding problems such as lowering oil level, untimely replenishing oil, and lagging accident handling, reducing the risks of fault expansion and environmental pollution.

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Abstract

The invention provides a monitoring system for controlling oil system leakage of a thermal power plant, and belongs to the technical field of oil system monitoring, and the monitoring system comprises an installation module which obtains the type of a steam turbine oil system, determines a plurality of key positions and execution mechanisms, and installs corresponding leakage monitoring devices; the monitoring module is used for monitoring the flow of the steam turbine oil system according to the leakage monitoring device and acquiring the flow change of each branch based on an ultrasonic flowmeter; the confirmation module is used for confirming a leakage part by using an internal operation rule based on the display of a digital liquid level meter according to the flow change of each branch; and the splitting and isolating module is used for splitting the single side of the steam turbine oil system and isolating an oil path according to the leakage part, sending out different early warning information, determining a corresponding solution strategy and realizing the monitoring of the leakage of the control oil system of the thermal power plant. The problems that the monitoring means is single, an alarm cannot be given out for system isolation in the first time of leakage, the oil level of a control oil tank is continuously reduced, accident handling lags, faults are expanded, and the environment is polluted are solved.
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