The secret of Qingdao oil port in shandong province: how 12,245 valves are controlled
12,245 valves, of which 2,449 are equipped with electrical actuators with remote control and 9,796 are manual. When entering the oil port, the view opens a dense network of pipelines, which lie quietly "waiting for the" permission "of the valves to start the flow. This binding pipe system is in fact under the strict control of the valves - these "watchmen" and "control points". Without their approval, no fluid can move freely. Valves play a key role in fluid transport systems: their variety of types and specifications can cause dizziness. Together, let us approach these seemingly ordinary but functionally unique valves and explore their secrets.