Problems with the placement of toxic probes
Thread Content
If a toxic gas detector is to be installed at the loading flexible hose connection, where should it be placed? Since loading/unloading platforms and dip pipes are generally quite tall, and dip pipes usually extend beyond the platform, toxic gas sensors should be placed at a distance of no more than 2 meters from the source of emission, at a height of 0.3 to 0.6 meters above the floor. For the dip pipes used in vehicle loading/unloading stations, the horizontal distance between them and the detectors should not exceed 15 meters. In this case, with the flexible hose outlet serving as the release source, is it appropriate to place the probe on the surface of the loading platform, or should it be placed below the platform at a height of 0.3~0.6m above the ground? I hope everyone can help answer this
The purpose of gas detection is to prevent poisoning; generally, detectors are placed in areas where gases are likely to accumulate, taking into account wind direction and human traffic. This is related to the relative density of the gases. Among the 7 typical toxic gases specified in China, only two are slightly lighter than air, while the rest are heavier than air. It seems better to check the steam density of the medium and make a decision based on the specifications. Normally, since the flexible hose is open, it’s obvious that the poison gas concentration there is above the safe level, and most of the people on the platform will take precautions in advance. However, the area below the platform is a place where precautions are easily overlooked. However, if the quantity is small and the company can afford the costs of regular inspections, it is of course best to have both upper and lower garments for personal safety. Our approach is provided here for the original poster’s reference: distribute them evenly across the floor; generally, no sensors are installed on the platforms. Instead, a few portable toxic gas detectors should be carried around to prevent unexpected situations caused by changes in wind direction, the nature of the medium, or variations in density.
It is still essential to focus on the location of the operator – this is fundamental!