KR970011657A - How to prevent overheating of the boiler and damage to the heat exchanger - Google Patents

Abstract

The present invention relates to a method for preventing the boiler from overheating and damaging the heat exchanger, and more specifically, to detect the temperature difference of the heating supply water and to protect the boiler by stopping the operation of the boiler when a sudden temperature change occurs. The present invention relates to a method for preventing overheating and damage to a heat exchanger.

The method of preventing overheating of a boiler and damage of a heat exchanger according to the present invention may include: a first step of measuring a temperature of heating water when a boiler is operated and recording the same according to a time change; A second step of calculating an hourly temperature difference recorded in the first step and determining an abnormality if the temperature difference is equal to or greater than a predetermined temperature; A third step of recording the change after detecting the abnormality and recording the temperature change according to the time change; And a fourth step of calculating an hourly temperature difference recorded in the third step and determining an abnormality occurrence and notifying the outside of the abnormality if the temperature difference is equal to or greater than a predetermined temperature.

Description

How to prevent overheating of the boiler and damage to the heat exchanger

Since this is an open matter, no full text was included.

1 is a graph showing the temperature variation of the heating water and the heating return of the boiler during normal combustion;

2 is a graph showing the temperature variation of the heating water and the heating return of the boiler during abnormal combustion;

3 is a schematic block circuit diagram of a conventional boiler,

4 is a flowchart for explaining the method of the present invention.

Claims (2)

The main control unit 2 having a built-in program for performing the entire stroke, and a temperature sensing unit 4 for detecting the temperature of the heating water discharged from the heat exchanger, and the state of the boiler according to the control signal from the main control unit 2. In the gas boiler comprising a display unit 6 for displaying a, a timer 8 for measuring the passage of time, a driving unit 10, and a thermistor for preventing overheating, the main control unit 2 in the boiler is operated. A first step of measuring a temperature of the heating water from a signal input from the temperature sensing unit 4 and recording it in a memory according to a time change; A second step of calculating the temperature difference per hour recorded in the first step by the main controller 2 and determining an abnormal occurrence when the temperature difference is greater than or equal to a predetermined temperature T; After detecting the occurrence of the abnormality and recording it in the memory of the main control unit 20, the third step of measuring the heating water temperature from the signal input from the temperature sensor 4, the temperature change according to the time change again and recording in the memory ; And a fourth step of calculating a temperature difference per hour recorded in the third step, and determining whether an abnormality occurs when the temperature difference is greater than or equal to a predetermined temperature T and notifying the outside using the display unit 6. To prevent overheating and damage to the heat exchanger. The method of claim 1, wherein the predetermined temperature (T) is 5 ° C. ※ Note: The disclosure is based on the initial application.