Combustible gas alarm is a kind of alarm politics. It can alarm when the gas concentration reaches the alarm setting. It is often used in places where chemical plants, petroleum, gas stations, iron and steel plants use or generate flammable gas. Today we mainly introduce the practical application of combustible gas alarms, hoping to help users better use the products.
The industry installs gas alarms at locations where gas leakage or incomplete combustion may occur on the production line of pipeline gas on a large scale, and the alarm signals are sent to the central control room through the output terminal. There is a centralized alarm section in the control room. The alarm points are displayed in segments or points, and the alarm density can be quantitatively displayed on the red bar graph display on the indicated alarm unit. This combustible gas alarm display system can be widely used in the manufacture and storage of combustible gas (artificial gas, liquefied petroleum gas, natural gas, etc.), and fire-fighting facilities in industrial and mining enterprises.
Civil use
(1) Centralized control of apartment buildings This is the most typical application of combustible gas alarms in civil use, as long as civil residential buildings equipped with building managers can use this method. The alarm is installed in each residential unit and outputs a centralized monitoring panel connected to the duty room. Once a gas leak occurs in a certain unit, the flammable gas alarm device immediately operates and outputs a signal, which can be displayed on the monitoring panel. Shanghai's advanced residential area It also began to use similar systems such as Tai Xin Building in Pudong New Area.
(2) Combine with the burning appliance This is to connect combustible gas alarms with gas appliances such as gas water heaters, cooking appliances, exhaust hoods, etc. When there is a gas leak, the alarm operates to emit audible and visual alarms and output electrical signals simultaneously. . If it is matched with a range hood, the range hood power is turned on, and if the leakage gas is discharged outwards, such as connecting with a water heater or a cooker, the action of the gas path can be achieved by operating a solenoid valve connected to the gas pipeline. There is also an alarm is directly connected with the gas meter, when the alarm that is through the solenoid valve in the gas meter action to cut off the role of gas source.
(3) Separate use This is the simplest usage of the flammable gas alarm. When the flammable gas leaks to a certain concentration, the alarm emits an audible and visual alarm. This alarm mode requires that someone in the house must immediately take measures to cut off the gas source manually. .
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