Detection of leakage in recovery boiler
AssigneeVaro Teollisuuspalvelut Oy
InventorTimo Karjunen
Life of this patent
Estimating the term…
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, said property of the boiler water including the concentration of the tracer or the conductivity of the boiler water or the cation-exchanged conductivity of the boiler water;
- 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, said property of the boiler water including the concentration of the tracer or the conductivity of the boiler water or the cation-exchanged conductivity of the boiler water;
- and
- drawing a conclusion regarding a leakage on the basis of said monitoring.
A computer program embodied on tangible computer-readable medium 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, said property of the boiler water including the concentration of the tracer or the conductivity of the boiler water or the cation-exchanged conductivity of the boiler water;
- and
- drawing a conclusion regarding a leakage on the basis of said monitoring.
Dependencies are inferred from the claim text.