On December 28, 2022, the results of the "2022 Excellent Practice Cases of Green and Low-Carbon Development of Enterprises" collected by the Ministry of Industry and Information Technology and the China Enterprise Confederation were released, and two cases of Haiyida, "Innovation and Application Promotion of Digital Operation and Maintenance Technology in the Airfield" and "Innovation and Application Promotion of Digital Operation and Maintenance Technology of Air Conditioning", were successfully selected.

The selected cases reflect the latest successful practices of various types of enterprises in China in key industries in carbon emission control, energy saving, consumption reduction and efficiency improvement, new energy development and construction, innovation and promotion and application of green and low-carbon technologies, resource recycling, and the construction of a dual-carbon standard service system.

The China Enterprise Confederation will also officially release the "Excellent Practice Cases" at the "2022 Industrial Green and Low-Carbon Development Conference - Enterprise Green and Low-Carbon Transformation Summit Forum" hosted by the Ministry of Industry and Information Technology, and actively publicize and promote these cases through the mainstream media and the official website of the China Enterprise Confederation, organize exchanges and study activities among case enterprises, and give full play to the typical demonstration role of cases.

Introduction of selected cases

Case 1: Technology innovation and application promotion of digital operation and maintenance in the airfield

The digital operation and maintenance technology of the airfield is applied to the control and monitoring of the apron high pole light of an airport. After the upgrade, the airport high-pole lights and stand markers have realized the functions of automatic switch operation, lighting dimming control, and online monitoring of the operation status of lamps and lanterns; At the same time, the data linkage with the flight information system is carried out through the Ethernet, and the flight information linkage control is realized. Without compromising flight safety, improve work efficiency through automated software analysis and alerting, and minimize the energy cost of high-pole lights throughout the airport.

Core Functions:

• Information visualization: Through graphical simulation, the background presents the floor plan of the high pole lamp, the floor plan of the camera marker, the lamp control button, as well as the overall operation status of each high pole lamp, each marker and the working status of each lamp. And set the overall control, partition control, group control, on-time control and other modes on the monitoring screen.
• Information linkage: Through the system interface reserved by the flight information system and the open communication protocol, the flight information can be read in real time, the automatic control of the high pole light can be realized, and the power status of the high pole light in the flight area can be adjusted in real time according to seasonal changes or weather reasons.
• Operation monitoring: Collect data in real time and display real-time data, historical data and switching status of the energy consumption of the entire high-mast lighting system in the form of tables and curves.
• Comprehensive report: summarize and count the operating parameters of the system, and generate yearly, quarterly, monthly, daily, and hourly light time and energy efficiency reports according to user requirements.
• Event alarms: Multimedia alarms classified by alarm severity level, such as abnormal operations, statuses, and accidents.
• Security mechanism: A variety of security prevention mechanisms, while ensuring the basic operation of the system, should have the ability to deal with various abnormal situations.
  
  

Effect of implementation:

After on-site field tests and the application of Haiyida's digital operation and maintenance technology, the average daily power consumption of the high-mast lights in the flight area is 2612 kWh, and the power saving rate is 26.71%. If the flight linkage energy-saving mode is used for a long time, it is estimated that the average daily power saving will be 2,090 kWh (about 80% of the current power saving), and it is expected to save about 760,000 kWh of electricity per year.

According to the cost of 0.89301 yuan per kilowatt-hour, that is, the high pole light in the flight area can save an average of 679,000 yuan per year. According to the calculation that about 960 grams of CO₂ is generated for every 1 kilowatt-hour of electricity produced by China's power grid (the average value of various types of electricity is mixed) (data from China's life cycle basic database CLCD), it can reduce 730 tons of CO₂ emissions for the airport, which not only responds to the call of the country for energy conservation and emission reduction, but also helps an airport to become a green airport while realizing the digital operation and maintenance of the apron high mast light monitoring system.

Case 2: Innovation and application promotion of digital operation and maintenance technology of air conditioners

The digital operation and maintenance technology of air conditioning is applied to the large-scale central air-conditioning system of an enterprise, which realizes the energy-saving management of the entire central air-conditioning system, including system linkage, system group control and energy-saving operation strategy, and can predictively adjust the operation mode of the system according to load changes at any time, so as to realize the operation income and management income of the central air-conditioning system.

Core Functions:

• Real-time monitoring of the operation status of each equipment, according to the end of the supply and return water temperature and pressure, real-time adjustment of the operation strategy, optimization of the operation logic, so as to reduce the operation cost;
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• Real-time monitoring of cooling water supply and return temperature, real-time adjustment of cooling tower fan input, real-time load addition and subtraction, on-demand input, priority to open the equipment with the least total operating time, to achieve energy saving and ensure the stable operation of the equipment;
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• Real-time monitoring of pump operation status, real-time load addition and reduction, on-demand investment, priority to open the equipment with the least total running time, to achieve energy saving and ensure the stable operation of the equipment;
• Through the communication function, the operating parameters of the host can be remotely monitored in real time, and the problems can be fed back in time.
  
  

Effect of implementation:

Energy cost saving: annual energy saving of 26.36% and annual energy saving income of 480,000 yuan;

The efficiency of facility operation and maintenance management can be increased by 50%, the equipment failure rate can be reduced by 10%, the life cycle can be extended by 10%, the safety can be improved by 50%, and the asset value preservation can be increased by 10%.

Effectively reduce the operating cost of equipment and enhance the comprehensive competitiveness of enterprises; Meet the government's requirements for energy conservation and carbon reduction, and improve the social image.