Analysis of the causes of malfunction of combustible gas detectors, are there any solutions?
There are two possible reasons for the malfunction of the combustible gas detector: non-standard construction process and inadequate maintenance. Both have the potential to cause malfunctions in the combustible gas detector. If the construction process is not standardized, combustible gas detectors will be used to detect faults during use. If the combustible gas detector is not located near the equipment that is prone to leaking combustible gas, or is installed adjacent to the exhaust fan, the leaked combustible gas cannot fully diffuse to the vicinity of the combustible gas detector, thus making it difficult for the leakage hazard to be detected by the combustible gas detector in a timely manner.
The combustible gas detector in residential buildings should be installed near the gas pipeline and stove in the kitchen. When residents use natural gas, the gas detector should be installed within 300mm of the ceiling; When residents use liquefied petroleum gas, gas detectors should be installed within 300mm of the ground. If the combustible gas detector is not reliably grounded and cannot eliminate electromagnetic interference, it will inevitably affect the voltage and result in inaccurate detection data.
Therefore, the combustible gas detector should be reliably grounded during the construction process. The combustible gas detector and wiring terminals are located in areas that are prone to collision or water ingress, causing electrical circuit breaks or short circuits. Non corrosive soldering flux must be used for welding, otherwise the joint will corrode and detach or increase the line resistance, affecting normal detection. Do not drop or throw the detector to the ground. After construction, debugging should be carried out to ensure that the combustible gas alarm is in normal working condition.
The maintenance and upkeep of combustible gas detectors are also important. Due to the harsh working environment of combustible gas detectors, many of which are installed outdoors and often subjected to various dust and pollutant gas attacks, combustible gas detectors must communicate with the detection environment to detect combustible gas information. Therefore, it is inevitable that various pollutants and dust in the environment will enter the detector, causing damage to the working conditions of the detector. If maintenance and upkeep are not paid attention to, the detection of combustible gas detectors will be obstructed, leading to errors or non detection. Therefore, regular cleaning and maintenance of combustible gas detectors is an important task to prevent malfunctions.
Another thing to note is that grounding should be checked regularly. If the grounding does not meet the standard requirements or is not grounded at all, it can also make the combustible gas detector susceptible to electromagnetic interference and cause malfunctions. Prevent components from aging. From the perspective of reliability, it has also been proven in practice that the failure caused by component aging tends to increase in systems with a service life of more than 10 years for combustible gas detectors. Therefore, if the service life exceeds the requirements of the usage regulations, it should be replaced in a timely manner.
