How to use gas alarms to prevent risks in diesel storage areas?
1, Accurate selection: matching diesel oil and gas detection needs
The main component of diesel is a mixture of C9-C18 hydrocarbons, which is a typical combustible gas. When selecting a gas alarm, it is necessary to closely follow the core requirements of "combustible gas detection". Firstly, the instrument range must cover the lower explosive limit of diesel oil and gas to ensure accurate capture of the entire process from low concentration leakage to hazardous concentration; The type of sensor can be selected according to the actual working conditions - catalytic combustion sensors have high sensitivity and fast response speed, outstanding detection effect on hydrocarbons such as diesel, and are suitable for most conventional storage scenarios; If there are many impurities such as sulfur and nitrogen in diesel, which can easily cause sensor poisoning, it is recommended to use infrared sensors, which have strong anti-interference ability and good long-term stability, and can avoid impurities affecting detection accuracy. In addition, considering that the diesel storage area may have humid and high-temperature environments, the alarm device needs to have corresponding protection levels (such as IP65 or above) to ensure normal operation in complex environments.
2, Scientific layout: eliminating blind spots in detection
The density of diesel oil and gas is higher than that of air, and it is easy to deposit near the ground after leakage. In addition, the breathing valve, pipeline interface, loading and unloading port and other parts of the storage tank are high incidence points of oil and gas leakage. When laying out alarm devices, it is necessary to pay special attention to these two characteristics. On the one hand, alarm devices must be installed within 1 meter above leakage points such as breathing valves, pipeline interfaces, and loading and unloading ports to ensure that leaked oil and gas can be captured immediately; On the other hand, the installation height of the alarm should be controlled at 0.3-0.6 meters above the ground, in line with the characteristics of oil and gas deposition and accumulation, to avoid missed detection due to excessive installation. At the same time, the distance between the alarm devices in the entire storage area should not exceed 7.5 meters. They can be evenly distributed according to the storage area and layout to ensure that every corner can be covered and completely eliminate detection blind spots.
3, Standardized installation: eliminate hidden dangers in the installation process
When installing gas alarm devices, it is necessary to strictly follow safety standards to avoid new risks caused by improper operation. Before installation, check whether the appearance of the instrument is intact, whether the accessories are complete, and confirm that there is no damage or malfunction before starting the installation; When fixing the instrument, it should be ensured to be firm to avoid position deviation caused by equipment vibration or collision in the future, which may affect the detection accuracy. Line connection is a key link - all lines need to be waterproofed and corrosion-resistant. Explosion proof junction boxes and conduit must be used for wiring to prevent aging, short circuits, electric sparks, and danger caused by contact with leaked oil and gas. In addition, the installation location of the alarm should avoid direct sunlight and strong magnetic field interference areas to reduce the impact of environmental factors on the performance of the instrument.
