Monitoring and management system of KUMASI reserve in Ghana, Africa
O Project Introduction
This oil depot is a strategic reserve depot in Ghana, with a total of 12 oil storage tanks, including 5 internal floating roof tanks and 7 ordinary dome roof tanks, with a total capacity of 119,000 cubic meters. There are 3 intermediate horizontal tanks for oil unloading, each with a capacity of 1 million cubic meters, 6 unloading platforms and 12 loading cranes. This project is supervised by India International Supervision Company.
O System Overview
The entire system adopts a distributed system structure to achieve "decentralized control, centralized management, and information sharing". The monitoring and management system specifically includes:
Tank capacity metering subsystem
Adopts high-precision radar level gauge, high static pressure transmitter, multi-point thermometer and TANKMASTER tank capacity calculation software.
Data acquisition and monitoring management subsystem
Adopts GE PAC 3i controller and its process I/O, 2 sets of host computer systems, and GE CIMPLICITY HMI industrial configuration software.
Process control instrument
Adopts domestic top electric cut-off ball valve, 3051 transmitter, tuning fork level switch, spiral wheel main pipe flowmeter, etc.
Fire alarm subsystem
Adopts domestic leading fire system and combustible gas alarm system.
Oil receiving and sending monitoring management subsystem
Adopts Ottowell's AWZ series loading management system and its software; on-site supporting equipment includes: loading flowmeter, CNC electro-hydraulic valve, electrostatic oil spill protector, etc.
Network and remote service sharing system
Monitor and transmit data with production management office and customs.
System Interface
The system is closely integrated with the automatic control part of the tank farm, and can display real-time changes in the liquid level, temperature and even pressure of the tank in the form of a graphical interface:
Tank farm map
The tank area zoning diagram can display the corresponding parameters of the tanks in each zone in real time and can perform corresponding production operations on the tanks.
Tank farm detail drawing
The power supply redundancy management system enables the entire system to be powered by UPS in the event of a power outage. The UPS is a redundant structure. If the UPS support time reaches the warning position, the generator will automatically start to supply power. The power supply structure diagram is as follows:
Power supply system
System Interface
The oil receiving and dispatching control system controls and manages the oil receiving and dispatching, and has functions such as invoicing, data statistics, and real-time printing of oil receiving and dispatching reports. The interface is as follows:
Oil sending and receiving control system
The fire protection system monitors the parameters of the fire pump station, etc. The interface is as follows:
Fire monitoring
Dongguan Humen port (China) Gulf oil storage terminal Co., Ltd. reservoir management system
O Project Introduction
The first phase of the petrochemical storage project of Dongguan Gulf Oil Storage Co., Ltd. is located in the petrochemical zone of Lisha Island, Shatian, Humen Port, Dongguan City. It is a storage base of 70,000 cubic meters of gasoline, diesel, styrene, dichloromethane and glacial acetic acid. The storage project is mainly divided into material storage area, automobile loading area and auxiliary production area according to the region. The material storage area is planned to be 5001-5004, 501-504 and 3001-3016, with a total of 24 storage tanks, mainly storing gasoline, diesel, liquid chemicals, styrene, dichloromethane and glacial acetic acid, including supporting corresponding pump sets and pipelines and valves connecting various facilities.
A car loading shed is built in the car loading area, with 7 loading platforms and a total of 24 loading positions. The 1# loading platform is equipped with 4 loading crane positions, the 2#~5# loading platforms are equipped with 3 loading crane positions each, the 6# loading platform is equipped with 4 loading crane positions, and the 7# loading platform is equipped with 4 loading crane positions. The diameter of the process pipelines of the loading crane positions is DN80, and the material is carbon steel or stainless steel. The equipment of each set of loading crane positions mainly includes manual valves, filters, flow meters, control valves, loading crane pipes and other equipment. The loading crane pipes basically adopt top and bottom loading crane pipes.
The auxiliary production area mainly includes the central control room, cabinet room, loading and billing room, access control room, dock, accident pool, fire pool, sewage treatment pool, etc.
O System overview
According to the design specifications of the warehouse area, user needs and operation management requirements, the entire warehouse area is divided into two relatively independent control systems, namely the warehouse area remote data acquisition monitoring system (warehouse area SCADA system) and the metering loading control system.
Reservoir SCADA system
The remote data acquisition monitoring system (SCADA system) of the reservoir area is mainly to strengthen the remote real-time monitoring of the status of important devices or operating equipment (storage tanks, pump groups, valves, pipelines, interlocking equipment, etc.) in the reservoir area and the management of data and reports, etc., to improve the reliability of equipment operation, improve the working conditions of operators, reduce labor intensity and operating costs, ensure production safety, and ultimately improve the operation management level and economic benefits of the reservoir area.
This reservoir area SCADA system adopts a hierarchical distributed structure, which consists of three parts: management level, control level and field level.
Metering Loading System
The metering loading control system is mainly to improve the production efficiency of loading, ensure the delivery accuracy, ensure the safety of loading operations, reduce the labor intensity of workers, and minimize various accidents caused by human factors to ensure the operation of equipment and meet the needs of safety management.
The metering loading control system can be divided into a centralized metering loading control system and a distributed metering loading control system in terms of control mode. This scheme adopts a distributed metering loading control system. According to the distribution of loading crane positions on the operating table, a metering loading controller is used to control a loading crane position, and then multiple loading instruments are connected through industrial Ethernet to communicate with the loading management station for data transmission. The distributed metering loading system is operated and displayed on site by the on-site loading controller, and the loading management station is only responsible for remote monitoring and management. It has the characteristics of strong operability, easy maintenance, and high safety.
System structure diagram
major configurations
Tank area automatic control system
1. Central control room host computer system
2. Central control room LED large screen
3. Central control room master PLC system
4. On-site 1# remote I/O station system
(V401~V408, V501~V506 tank area and public parts)
5. On-site 2# remote I/O station system
(V507~V516 tank area and public parts)
6. Loading control room host computer system
7. Loading system on-site instrument → On-site detection instrument
→ On-site execution instrument
Cable and installation materials → I/O signal lightning protection grid
Facing the future, Autower will adhere to and deepen the "specialized and special new" positioning, increase innovation investment, continue to broaden the channel, expand the capacity, and strive to promote the integration of innovation, design, manufacturing and green, low-carbon, intelligent development, from outstandingly moves towards remarkably, create value for customers, create value for the society, to become an excellent intelligent filling technology and environmental protection equipment service providers firmly forward.
