What do the loading arm at the tank truck loading station and the grounding system of the tank truck look like?
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What do the loading arms at the tank truck loading station and the grounding system of the tank trucks look like? What kind of protection is required for grounding to ensure safety?
Grounding of the loading arm: There should be grounding devices on the loading and unloading platforms. It can be directly attached to the grounding point on the vehicle. The pipe wall is made of special lined steel wire pipes to ensure the discharge of static electricity. As for the grounding of tank trucks, is it simply a soft iron bar or similar conductor dragged underneath the vehicle all the way to the ground? I remember that chains are not allowed to be used; chains cannot ensure a proper electrical connection
Upstairs, what you said is probably correct. But there’s more I want to know. Due to system requirements, 1. Loading is not allowed until static grounding is completed ； The valve closes when there is poor grounding between the arm and the tank truck. 2. The static grounding signal can only be triggered during loading operations. Wait, I’m not very clear about any of this. The grounding in this section seems to be relatively complex.
I have worked on several tank trucks, including those at oil depots. There shouldn’t be anything too special. What you mentioned are your own operating procedures, right? The principle is the same. It’s to ensure good grounding.
Everyone upstairs: Tank trucks are equipped with dedicated static electricity wiring as well as alarm devices. The system cannot start if the connection is poor.
Tank trucks are equipped with specialized static electricity grounding alarms for this purpose; by clamping the conductive parts of the tank truck with alligator clips, the alarm will not sound.
The person on the 6th floor is right; there is a dedicated static grounding wire. You need to use some force with that alligator clip: lol
Tank trucks equipped with static electricity interlock devices cannot be loaded unless they are grounded; as mentioned above, alligator clips are used for this purpose – this was done once by a team specializing in instrumentation, with the alligator clips combined with an instrumentation-based interlock system. . When doing this, the flexible hose, tank truck, and grounding system are connected.
For tank truck grounding, an “electrostatic grounding alarm” can be used, along with specialized grounding clamps and grounding wires.