Grounding of the pre-pump filter
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I have a question regarding the codes: In the \"Code for Fire Protection Design of Petrochemical Enterprises\" (GB50160-2008), Article 9.3.3 states that pipelines carrying combustible gases, liquefied hydrocarbons, combustible liquids, and combustible solids shall be equipped with static grounding facilities at the following locations: 3. Pipeline pumps, as well as the permanent filters and buffers at the pump inlets. I would like to ask everyone: 1. Does the permanent filter at the pump inlet mentioned here refer to the filter of the pipeline pump discussed earlier? Or does it refer to the filters for all pumps, including pipeline pumps? 2. Does the static grounding facility refer to flange bonding or separate grounding?
All pumps should be grounded separately; combustible materials can generate static electricity when passing through filters
But none of the design institutes included a separate grounding system in their designs!
Yes, there is basically none in the design, but it is stipulated in the petrochemical regulations, and experts who come to inspect the facilities also raise this issue.
Hello! Which specific petrochemical regulation are you referring to? The issue of adding a ground connection separately was also raised during external inspections, but their basis for this was this 50160, right? !
The petrochemical regulations are exactly like this; however, the 2018 version has now been released
The design specifications for static grounding in the petrochemical industry also seem to mention the issue of providing static grounding for filters
Personally, I think it applies to all pumps. Grounding refers to being connected separately to the ground bus. . . . Bridging is essentially an anti-static measure. Since it’s being mentioned, grounding should refer to the former.
Filters are usually located in the inlet pipes; how should the grounding for this area be handled?