In 2015, the Ministry of Transport issued the "Action Plan for Oil and Gas Recovery at Crude Product Terminals", and my country's terminal oil and gas recovery has entered a stage of rapid development. Wharf oil and gas recovery is a systematic project. A complete set of wharf oil and gas recovery equipment should at least include the gas phase arm (hose), ship-to-shore docking safety module (DSS), oil and gas transportation pipeline system, oil and gas recovery unit (VRU) and Control System (DCS). When the ship docks, connect the external interface of the oil and gas recovery on the tanker to the gas phase arm (hose) of the wharf, pass the ship-to-shore docking safety module (DSS), and then enter the gas collecting pipe of the wharf, and finally transport the oil and gas to the oil and gas recovery unit (VRU). ) For recycling.
In the terminal oil and gas recovery system, the ship-to-shore connection system (interface/handover system) is the key system that connects the ship and the oil and gas recovery processing device and ensures the safety of the ship and the terminal facilities. The ship-to-shore interface system for oil and gas recovery at the wharf refers to the connection part between the ship and the shore station that collects oil and gas or VOCs from the cargo hold to the oil and gas recovery device of the wharf during the loading or unloading operation of the liquid cargo ship. Arm (hose) and ship-shore interface safety device.
Since the ship-to-shore interface system involves two aspects of the ship and the shore station, the safety technology involved must also include the two aspects of the ship and the shore station. They are: ①The safety of cabin gas (ballast gas) on oil tankers and the collection of cabin oil and gas Safety technology of pipelines and standard joints; ②Safety technology of gas arm (hose) and ship-shore interface safety devices at the front of the wharf. The main sources of risk also include oil tankers and terminals. For oil tankers: excessive oxygen content in cabin gas (ballast gas), ship fire and explosion, ship drift, oil overflow into the gas pipeline, oil and gas containing water and slag, etc. Terminals: poor anti-flammability, electrostatic conduction, lightning protection, incomplete blocking, unblocked power failure, no linkage with oil transportation, poor performance in preventing misoperation, lack of fire caps, insufficient exhaust pipe height, and shipboard Failure to communicate with homework, etc.
The ship-shore interface safety device is equipped with the following functions:
1) Pressure detection, alarm and control;
2) Overpressure protection facilities;
3) Interlocking and cutting off facilities;
4) Anti-deflagration and detonation facilities;
5) On-line oxygen content detection and alarm facilities.