What improper operation will cause the combustible gas alarm to malfunction?
Publication Date：2023/02/08 We can effectively prevent accidents such as gas leakage and explosion by installing combustible gas alarm in places where combustible gas leakage may exist. However, in the process of the use of combustible gas alarm, there are many friends due to improper use, resulting in the failure of combustible gas alarm. Do you know what improper operations can cause the Combustible Gas Alarm to malfunction? The following is a brief introduction by yi yun Tian:
1. user mishandling
1. When using combustible gas alarm, high temperature, high humidity, steam and oil fume should be avoided.
2. When using the combustible gas alarm, pay attention to dust, high temperature, humidity, rain and other factors that may cause failure.
3. Electromagnetic interference should be avoided during use of the combustible gas alarm. The installation position, installation angle, protective measures and system wiring of combustible gas detector shall be well protected against electromagnetic interference. The influence of electromagnetism on combustible gas detector mainly includes electromagnetic interference in the air, electromagnetic interference on input and output lines such as power supply, and human body static electricity.
4. When using the combustible gas alarm, the air conditioning and heating equipment is installed near the combustible gas alarm.During the use of air conditioning and heating equipment, if the cold and warm air flows directly through the combustible gas alarm, combustible gas may be generated. The platinum wire resistivity of the detector changes and there is an error, so the combustible gas alarm should be far away from the air conditioning, heating equipment, so as to avoid misoperation caused by improper setting.
2. construction process irregularities
1, non-standard construction process will make the combustible gas alarm found fault during use. If the combustible gas alarm is not located near the flammable gas leakage equipment, or is installed close to the exhaust fan, the leaked combustible gas cannot be fully diffused near the combustible gas alarm, so the combustible gas alarm cannot detect the risk of leakage in time.The combustible gas alarm should be installed in the kitchen gas pipeline near the residence, stove, when residents use natural gas, gas detector absorption ceiling installation 300 mm from the ceiling; when residents use LPG, gas detectors should be installed at 300mm from the ground.
2. If the combustible gas alarm is not grounded reliably, electromagnetic interference cannot be eliminated, which will affect the voltage and lead to inaccurate detection data. Therefore, in the construction process, the flammable gas detector should be reliably grounded. Combustible gas alarm and connection terminals are easy to collide or enter, causing circuit disconnection or short circuit. Welding must use flux without corrosion, corrosion or use to release or increase the line resistance, affecting the normal detection. The detector should not fall to the ground. After the construction is completed, commissioning should be carried out to ensure that the combustible gas alarm is in normal working condition.
3. not regularly maintained
1, in order to detect combustible gas information, the combustible gas alarm must make the detector communicate with the detection environment, so all kinds of polluted gases and dust in the environment will inevitably enter the detector. The damage of the detector to the working environment is objective. The working environment of the combustible gas alarm is relatively bad, and most of them are installed outdoors. Poor maintenance will lead to false positives or missed detection of the combustible gas alarm. So ordinary clean combustible gas alarm, maintenance is an important work to prevent failure.
2. Check grounding regularly. If the grounding does not meet the standard requirements or is not grounded at all, it will also make the combustible gas alarm vulnerable to electromagnetic interference and cause failure.
3. To prevent elemental aging. From the perspective of reliability and practical application, when the service life of combustible gas alarm exceeds 10 years, the failure caused by component aging tends to increase. Therefore, if the service period exceeds the requirements of the use regulations, it should be replaced in time.
to sum up, we can see that there are three major aspects: improper operation by users, irregular construction process and lack of regular maintenance. if the operation is improper, the combustible gas alarm will fail. therefore, we will do a good job in these aspects, can better ensure that the combustible gas alarm to reduce the occurrence of failure.
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