Shanghai Gas Pudong Sales Company Transmission and Distribution and Pipeline Network Inspection Management System Case
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Shanghai Pudong Gas Sales Company is responsible for the natural gas supply service in the entire Pudong area. It needs to manage more than 2,800 pressure regulators and more than 10,000 valves. The daily maintenance and repair tasks are relatively heavy. Therefore, in 2007, the GREAT pipeline facility inspection system was used. Manage inspections and routine maintenance of regulators and valves.
Management objectives: centering on daily inspection management, establish the whole process management of regulators and valves from installation to daily operation to abolition.
1. Assess the implementation of inspections by inspectors and improve the quality of inspections.
2. Recording, summarizing and archiving of working state and pressure parameters of regulators and valves.
3. Analysis and statistics of the working conditions of the regulator and valve, defect analysis and trend analysis, etc.
4. Combine electronic labels to establish electronic accounts for regulators, valves and pipelines, and perform visual management (GIS) to achieve consistency between accounts, cards, objects and drawings.
5. Process management of new construction, deactivation, opening, abolition of regulators and valves, and routine maintenance and overhaul.
In view of the above management goals, we designed and implemented the GREAT electronic label pipeline equipment inspection system for Shanghai Pudong Gas Sales Company.
The system installs an inductive electronic tag for each regulator and valve to identify the device. .
The inspection personnel carry the hand-held inspection instrument, and by reading the electronic label on the device, they can accurately and conveniently identify the number and address of the regulator and valve. You will be prompted about the work content on site, that is, the events that need to be checked and pressure parameters, etc. After the inspection is completed, the inspection results and pressure parameters can be input into the handheld inspection instrument.
The arrival time and dwell time of each regulator and valve, as well as the working conditions of the equipment will be saved in the hand-held inspection instrument, brought back to the management center every day, uploaded to the data server through the data line, and the system management software will automatically The above information is classified and saved, and various statistical reports are automatically generated for each management department to consult.
System composition: The system is equipped with a total of 12 handheld inspection instruments, installed more than 2,800 pressure regulators, more than 10,000 valves, and a total of about 13,000 electronic tags. A data server is configured in the management center, and there are three independent sites under it. The data upload and retrieval are realized through the local area network of the enterprise. The data server is responsible for receiving and saving all the system data of the three sites. Log in to use the system.
The system achieves the main functions:
1. The inspection template and inspection plan can be prepared in the management center.
2. Check the inspection of the inspection personnel in the plan; the implementation of the inspection of pressure regulators and valves.
3. Inquiry and statistics of working conditions and pressure parameters of regulators and valves.
4. Defect analysis and trend analysis of regulators and valves
5. In the management center, you can view the property ledger of the regulator and valve;
6. The management center software contains GIS module, which can manage the combination of position information and attribute information of pipelines, regulators and valves.
7. Regulator and valve additions, decommissioning, and decommissioning process management (including in the Electronic Ledger and GIS modules)
8. Medium repair and overhaul statistics of the regulator.
The construction of the system was completed in 2007. After several years of improvement and construction, the current functions are very complete. Starting from adding a pressure regulator or valve, the corresponding electronic label is used as the identity identification and storage management. At the same time, the corresponding information is created in the GIS map. All the inherent attributes and changing work information of the equipment during the working cycle are stored The system is clearly and accurately stored and can be easily accessed at any time, providing the necessary basic information for the daily management and maintenance of the regulator and valve, and greatly improving the work efficiency. At the same time, the statistical analysis report provided by the system provides managers with helpful information to assist decision-making in equipment maintenance and replacement. The system has now become an important tool for regulator and valve management.
one.Project Background
The gas industry is closely related to the daily life of the general public and the production of industrial and mining enterprises. How to ensure the normal development of the gas supply business is an important task for many gas companies. Among them, the normal operation of gas pipelines and related equipment such as pressure regulators and valves is the basis for normal gas supply, so the management of pipelines and equipment is an important daily work of gas companies.
At present, there are two main methods and shortcomings of pipeline and equipment management in the gas industry:
1.Manual daily inspection
a. It is impossible to grasp the authenticity of the inspection in place and the recorded data
b. A large amount of inspection information is inconvenient to save, easy to lose, and time-consuming
c. Information query is inconvenient, and data cannot be effectively used for defect analysis and selection of equipment for auxiliary decision-making
2. SCADA remote monitoring
a. The working conditions of the monitoring terminal are harsh
b. The complex and changeable communication system does not guarantee reliable transmission
c. Low coverage and high cost
Enterprises urgently need a low-cost inspection system to realize dynamic and static system management of equipment.
two.User needs
The daily inspection management system for gas pipeline adjustment needs to meet the following three requirements:
1. To ensure regular inspection of each facility.
2. Record, summarize and analyze the status of each inspection facility and work data.
3. Leaders at all levels and relevant departments can easily inquire about the inspection situation through the local area network or the Internet.
Great’s self-developed pipe network equipment inspection management system has the following characteristics to ensure the inspection quality of pipe network equipment:
1. Ensure that the equipment is regularly inspected as planned
2. It is convenient to record the equipment status and related data.
3. Statistical analysis of inspection data and equipment operation data
4. File equipment and map management
3. System overview
Great’s self-developed gas equipment inspection management system is a management platform developed for the gas industry that combines RFID electronic tags, GIS (geographic information system), and multiple network transmission technologies. The system installs corresponding electronic tags for all equipment to realize automatic identification of equipment. Combined with the hand-held data collector, it can provide real inspection time and stay time; all the inspection data of the equipment can be input and saved through the collector. The management software in the background automatically analyzes and processes, and generates data reports including inspection reports, facility status and parameters.
Inspection system process:
According to the explosion-proof requirements of gas pipelines and auxiliary facilities and the working environment in the field, the solution consists of passive non-contact TI RFID electronic tags, explosion-proof handheld data collectors and system management software. Install RFID tags on facilities that need to be inspected and managed. Each RFID tag has a unique code built in, which can accurately identify each facility. At the same time, the electronic tag is associated with the pipeline location or facility construction in the system management software. One-to-one correspondence is established, and the basic properties of all facilities are established.
During the inspection, the inspection personnel carry the hand-held data collector to inspect according to the plan, and read the electronic label along the line. The data collector will automatically record the code of the electronic label and the accurate date and time of reading, and automatically prompt the What the equipment needs to do. According to the prompt of the data collector, the inspection personnel input the operating status and parameters of the equipment into the data collector through the keyboard. The information in the data collector can be downloaded to the management computer through the data line, and automatically summarized to the system management platform through the local area network or wide area network. Statistics, analysis and evaluation are carried out by the system management platform, and various statistical analysis reports are generated. Through the inspection report, the inspection track and inspection status of the inspectors can be understood; the facility status and parameters can be grasped and analyzed through data reports such as facility status and parameters. Facility operation, defect analysis.
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System Components:
I Explosion-proof handheld data collector DC-4000:
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Identification medium: RF TI tag
Reading distance: 5-8CM
Storage chip: 4M-bit FLASH storage, power-down data storage for more than 10 years
Can store up to 5000 records
Communication method: RS232, communication rate: not less than 9600bps.
Standby current: ≤50 microamps.
Battery: 3.6V/900mAH rechargeable lithium battery.
Waterproof grade: IP33.
Working temperature: -20 degrees – – – +80 degrees.
Working humidity: ≤85%
Data items: 8 data items for each of the 2-level directories, a total of 16 items (user-defined)
Event items: 2-level directory, 8 in the first-level, 16 events in the second-level (user-defined)
Display screen: Chinese characters display, 4*6 Chinese characters.
Number of keys: OK, C, 0-9, +, -, 15 decimal point counter and 1 power switch, a total of 16 keys.
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