METHOD AND DEVICE FOR MONITORING AND SAFE OPERATION OF NOCHIMNEY STOVES, ESPECIAL OIL STOVES

摘要

The method and device ensure accurate and rapid control of carbon dioxide content in the air of the inner room where the stove is burning. According to the method, independently of the monitoring of the height of the flame of the burner by a radiation-sensitive element, the part of oxygen in the flue gases of the burner in the petrol burning stove is also monitored and used as an indication for controlling carbon dioxide content in the air. The signal for oxygen content is transformed into a voltage signal and used as a controlling signal. When the burner operates beyond the preliminary assigned range for the height of the flame, the signal for oxygen content is used both for re-establishing the normal state of heating and for control of the operation at the smallest height of the flame. A warning signal is generated and a delayed automatic switching off of the burner is carried out when the predetermined first and second (smaller) part of oxygen in the flue gases is reached, which corresponds to the predetermined parts of carbon dioxide in the air in the inner room. It is possible also to monitor the part of carbon dioxide in the burner in the petrol burning stove, which is used as an indicative measure for controlling the carbon dioxide content, thereby transforming this signal into the respective control signal.