Detection of leakage in recovery boiler
AssigneeVaro Teollisuuspalvelut Oy
InventorTimo Karjunen
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Abstract
A method, system and computer program for detecting a boiler leakage, in which the automation system of the recovery boiler receives an indication of a need to start the automatic sequence and starts an automatic sequence with the following functions: stopping the dosing of the tracer into the boiler water, stopping the exhaust purge flow of the boiler water, monitoring a property of the boiler water over the duration of the inspection period and drawing a conclusion regarding the leakage on the basis of said monitoring.
Claims19
A method for detecting a boiler leakage, the method comprising:
- receiving in an automation system of the boiler an indication of a need to start an automatic sequence;
- starting in the automation system, in response to the receipt of said indication, the automatic sequence with the following functions:
- stopping the dosing of a tracer into boiler water in the case that the boiler comprises a separate dosing of the tracer;
- stopping an exhaust purge flow of the boiler water;
- monitoring a property of the boiler water over the duration of an inspection period;
- and
- drawing a conclusion regarding the leakage on the basis of said monitoring.
A system for detecting a boiler leakage, the system being configured to receive an indication of a need to start an automatic sequence and start, in response to the receipt of said indication, the automatic sequence with the following functions:
- stopping the dosing of a tracer into boiler water in the case that the boiler comprises a separate dosing of the tracer;
- stopping an exhaust purge flow of the boiler water;
- monitoring a property of the boiler water over the duration of an inspection period;
- and
- drawing a conclusion regarding a leakage on the basis of said monitoring.
A computer program comprising a program code to be executed on an automation system of a recovery boiler causing the automation system to perform the following functions:
- receiving in the automation system of the boiler an indication of a need to start an automatic sequence;
- starting in the automation system, in response to the receipt of said indication, the automatic sequence with the following functions:
- stopping the dosing of a tracer into boiler water in the case that the boiler comprises a separate dosing of the tracer;
- stopping an exhaust purge flow of the boiler water;
- monitoring a property of the boiler water over the duration of an inspection period;
- and
- drawing a conclusion regarding a leakage on the basis of said monitoring.
Dependencies are inferred from the claim text.