Must the outdoor hydrogen filling manifold and control valves be located on either side of the explosion-proof wall?
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The outdoor hydrogen filling manifold and control valves designed by the design institute are located on one side of the explosion-proof wall, alongside the filling tank trucks; the other side serves as the area where personnel monitor the filling process. When filling by opening the valve in this way, the personnel are on the same side as the tank truck, which poses certain safety risks. I’m not sure whether the collector control valve should be placed on the other side of the explosion-proof wall; I wonder how other manufacturers design it.
Personally, I think there is nothing wrong with the setup you described. The filling facilities and control valves are located on the side of the tank truck, so that the filling operators can check whether the tank truck, connection pipes, and filling control facilities are proper and reliable. An emergency shut-off valve should be installed on the other side to ensure that the gas supply can be cut off in case of an accident