Container port RTG crane oil to electricity conversion and application

Introduction

With the continuous development of global trade, the throughput of container ports has been increasing year by year. The importance of rubber tire container gantry crane (RTG) as the main loading and unloading equipment in container yards is self-evident. However, traditional RTGs that use diesel generators as power sources have problems such as high energy consumption, low efficiency, high pollution, and strong noise, which seriously affect the operational efficiency and environmental protection of ports. Therefore, the conversion of RTG crane from oil to electricity has become an important means for port enterprises to save energy, reduce emissions, and improve competitiveness in the new era.

Overview of RTG Crane Oil to Electricity Technology

The RTG Crane oil to electricity technology is an advanced technology that leads industry transformation. It overturns the traditional diesel generator power supply method and instead adopts a cleaner and more efficient mains power supply method. This significant transformation not only greatly reduces the energy consumption and operating costs of rubber tire gantry cranes, but also significantly reduces harmful gas emissions, playing a positive role in improving the environmental quality of ports. The following is a detailed introduction to the technology:

Technical principles

The RTG crane oil to electricity technology replaces the traditional diesel power system with a mains power supply system, achieving the energy transformation of rubber tire gantry cranes. In practical operation, the mains power provides stable and continuous power support to RTG through dedicated cable reels or sliding contact lines and other equipment. This transformation eliminates the need for RTG to consume diesel during operation, significantly reducing energy consumption and achieving the goal of zero emissions.

Key technology

1. Power supply technology solution: Select a suitable power supply method based on the actual situation of the port. Cable reel power supply is a flexible and reliable power supply method, suitable for various types of rubber tire gantry cranes. Low rack sliding contact line power supply and elevated sliding contact line power supply are suitable for large storage yards and specific operating environments, and can meet the power needs of RTG under different working conditions.
2. Automatic correction and traction technology: Ensure that RTG can move steadily and accurately during the operation process. By introducing advanced sensors and control systems, real-time monitoring of the working status of RTG and precise control of it can improve operational efficiency.
3. Fast switching and safety protection technology: achieve fast switching between diesel generator set power supply and mains power supply. When there is an abnormality in the mains power supply, it can quickly switch to the diesel generator set for power supply, ensuring the continuous operation of the rubber tire gantry cranes. At the same time, security protection technology can monitor equipment status in real time to prevent potential security risks.

Technological process

The process flow of RTG rubber tire gantry crane oil to electricity conversion includes the construction of power supply lines (cable reels or sliding contact lines), installation of lightning protection systems, installation of power supply and distribution and electrical protection devices, and implementation of fast switching functions. During the renovation process, it is necessary to carry out adaptive renovation of the yard to ensure the safety and reliability of the power supply lines; At the same time, a comprehensive upgrade of RTG’s electrical system is required to adapt to new power supply methods and control requirements.

Application case of RTG rubber tire gantry crane oil to electricity conversion

Qingdao Port

As one of the important container ports in China, Qingdao Port has taken the lead in implementing the RTG rubber tire gantry crane oil to electricity project. By introducing mains electricity as a power source, Qingdao Port has successfully reduced energy consumption and operating costs, while improving environmental quality. According to statistics, the energy saving rate of the renovated RTG operating single box TEU has reached 50%, the equipment utilization rate has increased by 10%, and the noise has been reduced by more than 90%.

Shanghai Port

Shanghai Port has also actively responded to the national call for energy conservation and emission reduction by transforming some RTGs from oil to electricity. By adopting advanced technologies such as supercapacitors and energy-saving control systems, Shanghai Port has successfully transformed traditional RTGs into hybrid RTGs. The renovated RTG can achieve energy recovery and reuse during operation, further reducing energy consumption.

Tianjin Port

Tianjin Port has also implemented the RTG rubber tire gantry crane oil to electricity project. Through the renovation of the yard and RTG, Tianjin Port has successfully introduced the cable reel power supply method. The modified RTG can move stably and accurately during operation, while reducing energy consumption and operating costs.

The promotion prospects of RTG rubber tire gantry crane oil to electricity conversion

At present, in the field of container yard loading and unloading in China, the application of Rubber Tired Gantry Crane (RTG) dominates, with a market share of over 90%. This type of crane plays an irreplaceable role in port loading and unloading operations due to its excellent flexibility and efficient operational performance. However, traditional fuel power, while providing powerful power, also brings significant energy consumption and environmental pollution problems.

With the increasing emphasis on environmental protection and the promotion of energy structure transformation by the country, the transportation and port industry is actively seeking a green and low-carbon development path. Among them, the “oil to electricity” technological transformation of rubber tire container gantry cranes has become a focus and important breakthrough in the industry. According to industry reports, if China’s transportation and port industry can successfully transition 75% of its rubber tire container gantry cranes from fuel powered to electric powered, it is expected to save up to 200000 tons of standard coal equivalent (tce) of energy annually, with significant energy-saving effects and enormous potential.

In addition, the application of oil to electricity technology is not limited to energy conservation and emission reduction, but also lies in its positive role in improving the environmental quality of ports. Compared with traditional diesel engines, electric cranes can significantly reduce exhaust emissions during operation, especially the production of harmful substances such as sulfides, nitrides, and particulate matter, effectively reducing air pollution, reducing noise pollution, improving the quality of port operating environment, and further enhancing the ecological friendliness of the port area. Given the above advantages, the technology of converting rubber tire gantry crane oil to electricity has extremely broad application prospects and promotion value in the field of container yard loading and unloading.

Conclusion

The RTG rubber tire gantry crane oil to electricity technology, which replaces traditional fuel driven technology with electric drive, plays an increasingly important role in container port operations. This innovative technology not only represents a technological innovation in container loading and unloading equipment, but also provides strong support for the sustainable development of the global logistics supply chain.

In the field of container ports, the application of RTG rubber tire gantry crane oil to electricity technology is an important step in promoting the development of green logistics. By replacing the diesel engine with an electric motor, pollutant emissions have been effectively reduced, noise pollution has been minimized, and energy efficiency has been significantly improved. Using mains electricity as a power source not only reduces operating costs, but also comprehensively improves equipment acceleration, operational efficiency, and handling performance.

With the global popularization of environmental awareness and the continuous progress of low-carbon technology, the RTG rubber tire gantry crane oil to electricity technology will usher in a broader development space. Not only will it play an important role in upgrading and renovating existing port facilities, but it will also promote the adoption of more advanced electric driven loading and unloading equipment in new ports. In the long run, the RTG rubber tire gantry crane oil to electricity technology has a profound impact on optimizing port operation processes, reducing logistics costs, and promoting sustainable trade development. At the same time, this will further accelerate the green transformation of the global supply chain and contribute to the construction of a community with a shared future for mankind.