METHOD FOR DETECTING BLOCKAGE IN EXHAUST FLUE OF GAS BOILER

摘要

The present invention relates to a method for detecting a blockage in an exhaust flue of a gas boiler, comprising: (A) a step for conducting an ignition process according to a user set temperature requested from the outside and performing temperature control to reach the user set temperature; (B) a step for determining whether the current fan RPM of a driven blower exceeds a reference fan RPM; (C) a step for calculating a difference between temperature values of supplied heating water and collected heating water that are detected by temperature sensors when heating water is supplied and determining whether the calculated value is less than a preset reference temperature value when it is determined that the current fan RPM exceeds the reference fan RPM; (D) a step for determining whether the elapsed time elapses a preset setting time based on the determination time point of the step (C) when it is determined that the calculated value is less than the reference temperature value; and (E) a step for displaying, on the outside, a notification that the blockage in the exhaust flue has been identified when it is determined that the elapsed time has elapsed the setting time based on the determination time point of the step (C).

主权项

1. A method for detecting a blockage in an exhaust flue of a gas boiler, which drives a blower according to an amount of air flowing through a venturi provided at the blower inlet when the boiler is activated and thereby introduces gas, conducts ignition process via a controller after an air-gas mixture, which is a mixture of introduced gas and air, is supplied to a burner, detects temperatures of supplied heating water and collected heating water during heating from temperature sensors provided in the supplied heating water pipe and collected heating water pipe, and uses the blower fan RPM and temperatures of supplied heating water and collected heating water to detect blockage in an exhaust flue, the method comprising,
(A) a step for conducting an ignition process according to a user set temperature and performing temperature control to reach the user set temperature; (B) a step for determining whether the current fan RPM of a driven blower exceeds a reference fan RPM; (C) a step for calculating a difference between temperature values of supplied heating water and collected heating water detected by temperature sensors when heating water is supplied and determining whether the difference is less than a preset reference temperature value, when it is determined that the current fan RPM exceeds the reference fan RPM; (D) a step for determining whether the elapsed time elapses a preset setting time based on the determination time point of the step (C) when it is determined that the difference is less than the reference temperature value; and (E) a step for displaying, on the outside, a notification that the blockage in the exhaust flue has been identified when it is determined that the elapsed time has elapsed the setting time based on the determination time point of the step (C).