The function of the cooling fan is to check the fire and cool the fire detector. Since the fire detector is in the furnace, in order to ensure the normal use of the detector, a cooling fan is usually installed. two cooling fans using their main outlet pressure as a means of monitoring, when the outlet pressure is low, the chain starts another one, if it is low, to protect the fire detector, a large one is burned and monitoring of the boiler flame. is lost and the oven is turned off.
Fire detection is an important part of the FSSS oven safety monitoring system. This is an important piece of equipment for operators to understand the flame conditions in the furnace. Due to the important logic of flame signal jump and MFT, poor flame signal seriously threatens the function.sure of the unit.
Detailed information:
Working principle
The fire detection amplifier is mainly used to detect the existence and the presence of flames under different conditions. combustion conditions no.
The working principle of the fire detection amplifier: it mainly relies on the infrared scanner inside the fire detection to scan the flame and generate a certain frequency 'pulse, then identify the presence or absence of the flame through the fire detection. The flame detection device detects the flame based on the characteristics of the flame signal.
First of all, the flame signal is divided into 2 signals: the intensity signal and the frequency signal.
The intensity signal represents the brightness of the flame and the frequency signal represents the flicker of the flame.
The treatyment of the intensity signal is relatively simple. Simply compare the flame intensity in real time with the intensity threshold. When the flame intensity is greater than the intensity threshold, it is determined that the flame intensity condition is. established.
Baidu Encyclopedia-Fire Inspection