Problems with the use of grating plates and patterned steel plates in the production facilities of LPG deep processing enterprises
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For enterprises engaged in the deep processing of liquefied gas, regarding the use of grating plates and patterned steel plates in production facilities: why is it necessary to use fireproof coatings with a higher thickness on patterned steel plates, while a thickness of 10 meters is sufficient for grating plates? Similarly, using patterned steel plates offers advantages in preventing the spread of fire and protecting against falling objects, but what are its limitations?
It is guessed that the fence panels have good air permeability, so flammable gases do not tend to accumulate. In case of a fire, the high-temperature flame gases can easily dissipate heat through the gaps in the fence, whereas the patterned panels are airtight and retain heat just like an iron pot. Refer to barbecue websites and cast-iron pots
Device platforms are generally specified not to use patterned steel plates, mainly due to the issue of pool fires in case of a fire.
Thank you for the replies from the 2nd and 3rd floors. I personally don’t agree with this view; since fire situations are taken into consideration, the top priority in firefighting should be to control the spread of the fire and prevent it from expanding and causing secondary disasters. From this perspective, patterned panels are more effective at preventing the spread of fire. As for pool fires, it’s better for the fire to burn in one area rather than spreading out.
The new GB50160 standard recommends the use of patterned steel plates to prevent the spread of flames
1) Beams and columns of single-layer frameworks； 2) When the floor slabs of the multi-story structure are open steel grating floors, the beams and columns within a range of 10 m above the ground level ； 3) When the floor slab of a multi-story structure is a closed-type slab, the beams and columns in the area from the ground level up to the surface of that floor slab and within an additional 10 meters above it ； 4) All beams, columns, and load-bearing diagonal bracing of the frame equipped with an air cooler at the upper part. Has the wording not changed? ? ?
Stainless steel sheets are expensive, and their anti-slip properties are inferior to those of grating sheets.
In the case of a fire, the flame height is taken into consideration; for grating plates, the ignition point is at the ground level, while for patterned plates, due to the accumulation of liquid, the ignition point must be considered on the platform. After checking, it turns out that the use of grating plates or patterned plates is indeed not due to fire concerns, but rather for anti-slip purposes.
Grating is more expensive than patterned plate: lol
Mm-hmm, this should be the correct answer. Based on the spread range of flammable gases and liquids, it’s generally within 10 meters. Therefore, it’s sufficient to apply fireproof coating up to a height of 10 meters. However, for grid panels, since the ignition point is at the ground level, the coating needs to be applied 10 meters above the ground. As for patterned panels, due to the accumulation of liquid, the ignition point is on the platform, so the coating needs to be applied 10 meters upward from the platform