Auxiliary decision-making method for liquid cargo loading and unloading system of ultra large crude oil carrier
An auxiliary decision-making, loading and unloading system technology, applied in the field of monitoring, can solve the problems of ship cargo oil combustion and explosion, marine pollution, endangering the safe navigation of ships, etc.
Inactive Publication Date: 2019-11-29
SHANGHAI MARINE EQUIP RES INST
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[0002] The liquid cargo handling system of a very large crude carrier (VLCC) includes multiple related subsystems, involving cargo oil pump and ballast pump system, liquid level monitoring system, valve remote control system, inert gas system, etc. The current control methods for these subsystems It is mainly controlled manually by operators in the cargo control room, which has high requirements for operators. Once misoperation occurs, accidents such as cargo damage and marine pollution may occur. In severe cases, cargo oil combustion and explosion accidents may occur, directly endangering the safety of ships safe navigation
Automation and intelligence are the development trend of VLCC. There is no corresponding mature auxiliary decision-making system for liquid cargo in China. Now there is an urgent need for an auxiliary decision-making method and device for VLCC liquid cargo system to comprehensively analyze and process the data and subsystems of each subsystem. According to the data information of the mutual influence between them, an auxiliary decision-making plan is generated according to the auxiliary decision-making method of the liquid cargo system, and displayed on the workstation in the form of a page, prompting the operator to operate correctly and reasonably, and assisting the ship to achieve safety monitoring, alarm and control. Purpose
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[0015] like figure 1 The structure diagram of the auxiliary decision-making method of the VLCC liquid cargo handling system shown includes a workstation, a signal analysis and processing unit, and five signal acquisition units, which are used to collect valve remote control signals, liquid level monitoring signals, and ballast system signals respectively. , cargo oil pump and ballast pump signals, inert gas system and other real-time signals, the signal analysis and processing unit analyzes and processes these real-time signals to give auxiliary decision-making information, and the workstation displays the auxiliary decision-making information and real-time signals for operators to carry out View and operate.
[0016] The real-time flow calculation method of each cabin: mark the initial state value V0 of the tank capacity of each tank, the signal analysis and processing unit records the initial value, and then records the value of the tank capacity every 1 second, when the 200...
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The invention relates to an auxiliary decision-making method for a liquid cargo loading and unloading system of an ultra large crude oil carrier. Liquid level data of tanks, liquid level data of a cargo oil tank and a ballast tank, bearing temperatures of a cargo oil pump and a ballast pump and ballast signals of the tanks are collected by a signal analysis and processing unit in real time througheach signal collection unit, and after the real-time data are comprehensively analyzed and processed by the signal analysis and processing unit, real-time information, alarm information and corresponding operation instructions of the ultra large crude oil carrier are generated under navigation, loading and unloading conditions. The correct and reasonable operation instructions are given to operation personnel, and the carrier is assisted to achieve purposes of safety monitoring, alarm and control.
Description
technical field [0001] The invention relates to a monitoring technology, in particular to an auxiliary decision-making method for a liquid cargo loading and unloading system of a super-large tanker. Background technique [0002] The liquid cargo handling system of a very large crude carrier (VLCC) includes multiple related subsystems, involving cargo oil pump and ballast pump system, liquid level monitoring system, valve remote control system, inert gas system, etc. The current control methods for these subsystems It is mainly controlled manually by operators in the cargo control room, which has high requirements for operators. Once misoperation occurs, accidents such as cargo damage and marine pollution may occur. In severe cases, cargo oil combustion and explosion accidents may occur, directly endangering the safety of ships Safe sailing. Automation and intelligence are the development trend of VLCC. There is no corresponding mature auxiliary decision-making system for li...
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IPC IPC(8): B63B9/00B63B25/08
CPCB63B25/08
Inventor 石磊王平殷非许环运范松伟蓝玉邱赟王刚毅刘彬
Owner SHANGHAI MARINE EQUIP RES INST