Chemical Industry Energy Management System Case – China National Offshore Oil Corporation Limited belongs to the chemical industry, mainly producing, processing and selling high-grade heavy traffic asphalt and cyclopentane lubricating oil.
Policy Background
The chemical industry is a high-energy-consuming industry and a key industry for energy consumption in China. Its total energy consumption accounts for about 32% of the country’s total industrial energy consumption. The chemical industry covers a wide range of enterprise types, with different process flows and a wide variety of production by-products. There are generally problems such as unclear boundaries of the management system and incomplete identification of energy performance. This standard aims to guide chemical companies to reasonably establish an energy management system and improve their energy management performance, including improving energy efficiency and reducing energy consumption.
This standard is based on GB/T 23331-2012 and GB/T 29455-2012, and combines the characteristics of chemical enterprises to guide chemical enterprises to fully consider the differences in energy consumption of different enterprises and the changing characteristics of energy consumption under different conditions of the same enterprise when carrying out energy management.
This standard analyzes the current status of energy management, energy use and energy consumption of chemical enterprises, and puts forward systematic guiding suggestions to guide chemical enterprises to establish, implement, maintain and continuously improve energy management systems, achieve energy goals, and achieve the purpose of standardizing enterprise energy management behaviors, reducing energy consumption, improving energy utilization, and promoting sustainable development of enterprises.
1. Project Files
Project Name: Energy Management System Project Case of China National Offshore Oil Corporation
Industry: Chemical Industry
Project procurement related equipment: 1 set of energy management system, 1 batch of auxiliary materials
II. Project Introduction
1. Project Introduction:
China National Offshore Oil Corporation (CNOOC) Asphalt Co., Ltd. is jointly funded by five companies including CNOOC Oil & Gas Development and Utilization Company and Shandong Binhua Group. The company mainly produces, processes and sells high-grade heavy traffic asphalt and naphthenic lubricants. In order to achieve orderly and organized energy management, CNOOC Asphalt uses Compaq Intelligent ‘s smart energy management system to achieve the goal of visualizing energy management.
2. Customer needs:
CNOOC Asphalt mainly produces chemical products such as heavy cross-linked asphalt and naphthenic lubricants, and its main energy consumption medium is electricity. Therefore, CNOOC Asphalt’s energy management system and corresponding solutions focus on electricity monitoring and management.
CNOOC Asphalt’s energy management system solution involves eight areas, including seven production areas and a central control room, including hydrogen production, public works, sulfur, and delayed coking. The types of monitoring equipment are complex, involving various equipment and monitoring equipment in the production and processing process, including motors, frequency converters, high-voltage soft starters, high-voltage excitation, etc. The energy management system focuses on monitoring key production equipment, so as to perform abnormal analysis and fault prediction on the equipment operating parameters (three-phase voltage, three-phase current, active power, reactive power, apparent power, power factor, power frequency, three-phase imbalance rate, harmonics, etc.) in the production process, and reduce economic losses caused by equipment failures.
3. Energy Management System Solutions
1. Some functions are shown:
1) Reporting function
The distance between the substations of COSCO Asphalt is long, the equipment is complex and unevenly distributed, and the original information level is low. The operation and maintenance personnel have to read the meters manually and conduct inspections , which is a heavy workload and prone to leakage. Through the information collection and integration of the energy management system, the shift reports, daily reports, weekly reports, monthly reports, quarterly reports, and annual reports of regions and equipment can be collected. The active power of each position, each shift, and each circuit can be counted, and the current report and voltage report can be organically displayed and printed.
This function frees the hands of the operation and maintenance personnel , reduces the pressure of work, and ensures the accuracy and timeliness of the data.
2) Alarm function
The energy management system platform has rich alarm and early warning functions, which can alarm and query events and changes. Users can set the operating limits of the equipment. When the operating parameters trigger the limits, the system will automatically pop up an alarm message. This information contains a time stamp, which can accurately indicate the time of occurrence, providing a basis for equipment maintenance and fault judgment.
3) Flexible operation and maintenance
Compere’s energy management system is a platform based on B/S architecture. For operation and maintenance personnel , it is free from the restrictions of office location and can access and browse through smart terminal devices (such as computers, mobile phones, tablets), and can promptly discover and handle to-do items.
4) Energy efficiency verification
The energy management system platform is an important tool for collecting and displaying energy consumption data. Through data collection and analysis, the platform classifies and organizes weakly connected data, helping users quickly understand the internal connections and logical relationships between data, and timely discover abnormal energy consumption points and room for improvement.
In addition, when users replace and improve equipment, the energy management system verifies the energy-saving effect by analyzing and comparing the energy consumption before and after the transformation.
4. User benefits:
1. Short-term benefits
1) Security
Strengthen the specialization, standardization and regularization of operation and maintenance management of energy-consuming equipment to avoid electrical accidents and personal safety accidents caused by improper operation and management.
2) Decision support
After a short period of data collection and analysis, the energy consumption trends and flows of energy-consuming areas, energy-consuming media, and energy-consuming equipment are determined, providing data models for overall energy-saving transformation, equipment energy consumption anomaly analysis, and department and regional energy consumption performance assessment.
2. Medium-term benefits
1) Improve electricity sales transaction strategy
Calculate and analyze quarterly and annual year-on-year electricity consumption deviations, understand the dynamics of corporate electricity consumption, participate in free electricity sales transactions , reduce annual reported electricity consumption deviations, and reduce electricity unit price costs and overall electricity costs.
2) Extended equipment life
The system can be used to timely detect abnormal conditions of equipment, reduce equipment failure rate, and provide judgment basis for maintenance and overhaul. Through targeted maintenance and management, the operating life of equipment can be extended and the cost of equipment iteration can be saved.
3. Long-term benefits
1) Unmanned operation
Comprehensive control of energy-consuming equipment and energy-consuming media enables unmanned operation and helps operation and maintenance personnel improve operation and maintenance efficiency.
2) Apply for policy subsidies
The government is increasingly supporting the construction of energy management systems. Enterprises that have passed the energy management system construction and certification will receive different levels of policy funding subsidies according to different regional policies. At the same time, it is also conducive to the application of scientific and technological projects by enterprises in the later stage.
