Nowadays, with the continuous improvement of national safety production requirements, in order to detect whether flammable and explosive gases leak in real time, many industries require the installation of combustible gas alarms, which can effectively protect the production safety and personal safety of enterprises and prevent fires and explosions or personal accidents. However, when we install the combustible gas alarm, there are requirements for the spacing. Do you know what spacing requirements are for combustible gas alarms ? The following is a brief introduction by yi yun Tian:

1. when the enclosed space is narrow and has a cross-sectional area of less than 4 ㎡, the installation distance between the two detectors of the combustible gas alarm should not be greater than 15 meters.

2. when using liquefied petroleum gas or a mixture with a specific gravity greater than 0.75, the horizontal installation distance of the release source of the combustible gas alarm should not be greater than 3 meters, and the installation interval between the two detectors should not be greater than 6 meters, should be set in the corners and other sites of the air circulation.

3. the installation distance of combustible gas alarm is every 15 meters outdoors, I .e. the protection radius is 7.5 meters; The installation distance for enclosed and semi-enclosed indoor places is 7 meters, I .e. the protection radius is 3.5 meters. Toxic gas detector must be installed at a distance from possible leak source 1 Within meters. Combustible gas detectors in small explosion-proof areas must also be installed within 1 m from possible leakage sources. Combustible gas probes with specific gravity greater than 0.975, I .e. heavier than air, such as LPG, should be installed at a height of 0.3 to 1 meter from the ground.

4. when using natural gas, artificial gas or mixture with specific gravity less than 0.75, the distance between the installation and release center of combustible gas alarm should not be more than 4 meters, the installation interval between the two detectors should not be more than 8 meters, and the window should be more than 0.5 meters. When the height of the space is more than 4 meters, set the detector with collector cover or layered. The gas hood should be set at 4 meters above the release source. The area of the gas hood shall not be less than 1 ㎡. The detector shall be installed in the gas hood. When there is no gas hood, you can set the upper and lower layers of the detector, the upper layer is 0.3 m, from the lower part of the roof release source higher than 4 meters or so.

In summary, it is the installation spacing requirement for combustible gas alarms. Regardless of the type of gas detector, the location of the combustible gas alarm is based on the characteristics of the measured gas.If the detected gas is heavier than air, the detector should be installed near the ground 30-60cm, where the leakage gas gathers. If it is lighter than air, it is installed close to the roof and 0, 5-2 meters away from the leak source.