Cause analysis of failure of combustible gas detector
There are two reasons for the failure of the combustible gas detector: the construction process is not standardized and the maintenance is not done properly. Both have the possibility factors that lead to the failure of the combustible gas detector. If the construction process is not standardized, a flammable gas detector will be used to detect faults during use. If the combustible gas detector is not installed near the equipment that is prone to leaking combustible gas, or is installed adjacent to the exhaust fan during installation, the leaked combustible gas cannot be fully diffused near the combustible gas detector, so that the dangerous leakage cannot be promptly eliminated. Gas detector detection.
The combustible gas detector in the residence should be installed near the gas pipeline and stove in the kitchen. When the household uses natural gas, the gas detector should be installed on the ceiling within 300mm from the ceiling; The detector should be installed within 300mm from the ground. If the flammable gas detector is not reliably grounded and electromagnetic interference cannot be eliminated, the voltage will be affected and the detection data will be inaccurate.
Therefore, the flammable gas detector should be reliably grounded during construction. The flammable gas detectors and terminals are installed in places that are prone to collision or water ingress, which may cause electrical circuit breaks or short circuits. Non-corrosive flux must be used for welding, otherwise the corrosion at the joint will separate or increase the line resistance, which will affect the normal detection. Do not drop or drop the detector on the ground. Debugging should be carried out after construction to ensure that the combustible gas alarm is in normal working condition.
The maintenance of the combustible gas detector is also very important. Due to the harsh working environment of flammable gas detectors, many are installed outdoors and are often attacked by various dust and polluting gases. To detect flammable gas information, the flammable gas detector must communicate with the detection environment. Therefore, it is unavoidable for various polluting gases and accumulated dust in the environment to enter the detector, and the damage to the working conditions of the detector caused by it is an objective existence. A situation occurs that results in error or no detection. Therefore, regular cleaning and maintenance of the flammable gas detector is an important task to prevent failure.
Another thing to pay attention to is that the grounding should be checked 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 failure. Prevent components from aging. From the perspective of reliability, practice has also proved that the failures caused by component aging tend to increase in the system of flammable gas detectors with a service period of more than 10 years. Therefore, if the service period exceeds the requirements of the use regulations, it should be replaced in time.
