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What is the difference between a smoke alarm and a gas alarm?

2020-01-15 Date: 2020-01-15
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On the issue of security, many people are confused about the choice of this alarm. It is not clear what is the difference between a gas alarm and a smoke alarm , which will lead to some wrong judgments. They think that a gas alarm or a smoke alarm is installed There is no need to install other alarms, and the two are often confused. Now, let me tell you what is the difference between a gas alarm and a smoke alarm?


Difference between gas alarm and smoke alarm

烟雾报警器和燃气报警器的区别在哪里?

Gas alarm is a gas leak detection alarm device. When the gas leaks in the industrial environment and the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poison alarm, the gas alarm will send out an alarm signal to remind the staff to take safety measures. Fire extinguishers, etc., can be installed to drive exhaust, cut off, and sprinkler systems to prevent explosions, fires and poisoning accidents, thereby ensuring safe production. The gas alarm can measure various gas concentrations. Often used in chemical plants, oil, gas stations, steel plants and other places with gas leakage.


烟雾报警器和燃气报警器的区别在哪里?


Smoke alarm, a type of alarm, is commonly used in daily life. The most commonly used smoke alarms in the world today are photoelectric smoke alarms and ionized smoke alarms.


The ion smoke alarm has an ionization chamber. The radioactive element used in the ion chamber is 镅 241 (Am241), which has an intensity of about 0.8 microcuries. It is in an equilibrium state of the electric field under normal conditions. When smoke and dust enter the ionization chamber, this balance will be destroyed. In relation, the alarm circuit will send an alarm when it detects that the concentration exceeds the set threshold.


There is an optical maze inside the photoelectric smoke alarm. An infrared pair of tubes is installed. The infrared receiving tube cannot receive the infrared light emitted by the infrared transmitting tube when there is no smoke. When the smoke and dust enter the optical maze, the receiving tube receives infrared light through refraction and reflection. The light and intelligent alarm circuit judges whether the threshold is exceeded, and if it exceeds the alarm.


Seeing this, everyone must have a general understanding of the difference between gas alarms and smoke alarms.


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