Combustible gas alarms are also called gas leak detection and alarm instruments. When the combustible gas leaks in the industrial environment and daily life environment (such as a kitchen using natural gas), and the combustible gas alarm detects that the combustible gas concentration reaches the alarm value set by the alarm, the combustible gas alarm will emit sound and light Alarm signal to remind people to take safety measures such as evacuation, forced exhaust, and shutdown of equipment. Moreover, the gas alarm can be linked to related linkage equipment. If leakage occurs during factory production, storage and transportation, it can drive exhaust systems, cut off power supply, spray and other systems to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production. It is often used in chemical plants, petroleum, gas stations, steel plants, etc. where it uses or generates flammable gases.
Practical application
Industrial applications
Install gas alarms at locations where gas leakage or incomplete combustion may occur on a large-scale pipeline gas production line, and output alarm pulse signals through the output to connect to the central control room. There are centralized indication alarm parts in the control room, which can be divided into The alarm points are displayed in segments or points, and the alarm concentration can be quantitatively displayed on the indicating alarm unit with a red bar graph display. This combustible gas alarm display system can be widely used in the manufacture, storage, and fire protection facilities of industrial and mining enterprises of combustible gases (artificial coal, liquefied petroleum gas, natural gas, etc.). Civil
(1) Centralized control of apartment buildings
This is the most typical application of combustible gas alarms in civilian use, as long as the residential buildings equipped with building managers can use this method. The alarm is installed in each residential unit. By outputting the centralized monitoring panel connected to the duty room, once a unit has a gas leak, the combustible gas alarm will immediately act and output a signal, which can be displayed on the monitoring panel. It is now a high-end residential in Shanghai The district has also started to use similar systems such as the Taixin Building in Pudong New District, using the PAMA2000 gas leakage alarm system of AEC Anti-theft Company, and its computer terminal is connected to the Pudong New District Fire Department.
(2) Supporting use with burning appliances
This is to connect the combustible gas alarm with gas appliances such as gas water heaters, stoves, range hoods, etc. When there is gas leakage, the alarm will sound and light alarm, and output electrical signals. If it is equipped with a range hood, connect the power supply of the range hood and discharge the leaking gas outwards. If it is connected to a water heater or a stove, the solenoid valve connected to the gas pipeline is operated to cut off the gas path. There is also an alarm that is directly connected to the gas meter. When an alarm occurs, the solenoid valve in the gas meter acts to cut off the gas source.
(3) Use alone
This is the simplest usage of the combustible gas alarm. When the combustible gas leak reaches a certain concentration, the alarm will give an audible and visual alarm. This method requires someone in the house to immediately take measures to manually cut off the gas source.
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