Безопасная система загрузки коммуникации Xylene SCADA с скользящим ПЛК-контроллером складная

SCADA(Supervisory Control And Data Acquisition) system means data acquisition and monitoring control system, SCADA system is a computer-based production process control and scheduling automation system to achieve data acquisition, display, network release, device control, measurement, parameter adjustment, and various types of signal alarm and other functions .

The petrochemical storage SCADA system is divided into tank level monitoring systems, vagon or vehicle loading unloading management systems, oil and gas recovery systems, fire alarm and fire protection systems, perimeter systems, access control IC-card system and other subsystems.SCADA system is divided into layers: storage and transportation system integrated management platform, main monitoring system, and on-site main instruments. Therefore, the scope as follows.

SCADA System structure

Configuration of Units in SCADA System
1. ERP or OA system

For the petrochemical storage features, Customized ERP or OA system, in the perochemical storage has a very good practicality

Netwoek structure diagram of petrochemical storage ERP system

The upper computer system include

Standard structure is as follow

3. PLC or DCS, SIS core controller unit section

For the storage system of large-scale projects, PLC generally requires the use of medium and large equipment, PLC main control equipment using a hard redundant dual-machine hot standby structure, CPU Modules, power modules, Ethernet modules, and networks are all configured in a redundant manner. Failure of any one master control device does not cause system defects, and the redundant switch over must achieve a bump-less switch over.

In order to meet the liquid level, temperature, pressure and data monitoring of the petrochemical storage tank field, and in order to meet the entire production process and safety control functions of the petrochemical storage and transportation system, the field core instrument includes the liquid level, temperature, Pressure, control valves, transfer pumps and other equipments.

Liquid level gauge

The liquid level metering system is an important part of the petrochemical storage SCADA system. Generally, other level gauges such as radar or servo are installed in the tank. The metering accuracy of the level gauge is based on actual demand, with multi-point thermometer, pressure transformer, etc.. The single point current signal mode or serial communication mode is generally used between the liquid level meter and the system.

The standard system structure

(1) The level gauge mainly uses radar and servo level gauges, etc.
      Remote monitoring of tank level measurement

(2)Temperature measuring instrument
    Detect the temperature of the tank or pipeline to achieve remote monitoring

(3)Level switch
    Detecting the high and low positions of the tank level to achieve safety interlocking and remote monitoring

(4) Pressure transmitter
     Detecting the pressure of the tank or pipeline to achieve remote monitoring

(5) Emergency shut-off valve SCADA System software screen
      In order to meet the function of safety interlocking, the liquid hazardous chemicals storage area is generally          equipped with an emergency shut-off valve at key parts. The emergency shut-off valve is generally pneumatic or electric (fireproof)

(6)Control system cabinet
     Protective cabinets for control and communication control functions, indoor or outdoor

(7) Batch Controller
Remote monitoring of instruments for the control of incoming and outgoing batch processes in the storage tank      area

(8) Flow control instrument
      Detect the flow of the main pipeline to achieve remote monitoring

SCADA System software screen

HUBEI HONGYI ELECTRONIC&TECHNOLOGY CO.,LTD,in 2009,which covers an area of more than 3500 m2,has 4standard plants of over 6000 m2 in area,in which ,the building area of the office building ,R&D center,etc.is about 4500 m2,has more than 100 sets of nc press,nc bending machine,prectreatment system and spraying equipment that are the most advanced in china,a complete set of advanced online flow calibration system as well as a number of instrument and electronics testing equipment.We also lay emphasis on cooperation with the domestic and foreign excellent industrial control manufactures,and have established cooperation relationship with the design institutes of the Ministry of Chemical industry as well as the electronic control institutes of a number of universities.Through these cooperators,by combining our core products,we provide the users with the best system solutions.