Causes and solutions of combustible gas detector failures
Two reasons cannot be ruled out for the failure of the combustible gas detector: irregular construction processes and inadequate maintenance. Both are possible factors that may cause the combustible gas detector to malfunction. Irregularities in the construction process will cause flammable gas detectors to detect faults during use. If the flammable gas detector is not located near the equipment that is prone to leaking flammable gas, or is installed adjacent to the exhaust fan, the leaked combustible gas cannot fully diffuse to the vicinity of the flammable gas detector, thereby preventing the leakage from being flammable in time. Sexual gas detector detection.
Combustible gas detectors in residences should be installed near the gas pipelines and stoves in the kitchen. When the household uses natural gas, the gas detector should be installed on the ceiling within 300mm of the ceiling. When the household uses liquefied petroleum gas, the gas detector should be installed on the ceiling. The detector should be installed within 300mm from the ground. If the flammable gas detector is not reliably grounded and cannot eliminate electromagnetic interference, it will inevitably affect the voltage and cause inaccurate detection data.
Therefore, the flammable gas detector should be reliably grounded during construction. Combustible gas detectors and wiring terminals are installed in places prone to collision or water intrusion, causing electrical circuit breakage or short circuit. Welding must use non-corrosive flux, otherwise the joints will be corroded and disengaged or the circuit resistance will increase, affecting normal detection. Do not drop or drop the detector to the ground. After construction is completed, debugging should be carried out to ensure that the combustible gas alarm is in normal working condition.
Maintenance of flammable gas detectors is also very important. Since the working environment of flammable gas detectors is relatively harsh, many of them are installed outdoors and are often attacked by various dusts and polluting gases. To detect combustible gas information, the detector must communicate with the detection environment. , so it is unavoidable that various polluting gases and dust in the environment enter the detector, and the damage to the working conditions of the detector is objective. If maintenance is not paid attention to, the detection of combustible gas alarms will be blocked. This can lead to errors or non-detection. Therefore, regular cleaning and maintenance of flammable gas detectors is an important task to prevent malfunctions.
Another thing to note is that the grounding should be tested regularly. If the grounding does not meet the standard requirements or is not grounded at all, it will also make the flammable gas detector susceptible to electromagnetic interference and cause malfunctions. Prevent components from aging. From the perspective of reliability, practice has proven that systems with combustible gas detectors that have a service life of more than 10 years tend to have more failures caused by component aging. Therefore, if the service life exceeds the requirements for use, they should be replaced in time.
