Asia's largest trailing suction dredger "Junguang" guards the energy harbor in western Guangdong

China News Service, Maoming, November 13 (Reporter Wang Jian) ​​Asia's largest trailing suction dredger "Chunguang" of CCCC Guangdong Navigation Bureau recently entered the Bohe Port Area in Maoming, Guangdong, and has been involved in maintenance and dredging construction of the harbor and waterways to protect this key maritime energy channel in western Guangdong.

The rake suction dredger "Junguang" (data map). Photo courtesy of CCCC Guangdong Aviation Administration

According to reports, Maoming Bohe New Port Area is located in Maoming Binhai New Area. It is the core deep-water port area in western Guangdong. It is also an important energy industry cluster highland and a first-class port open to the outside world in Guangdong Province. The port area is equipped with large-scale specialized terminals for crude oil, coal, liquefied hydrocarbons, etc., and the port-side petrochemical and energy reserve industry clusters are connected in the rear, shouldering the important mission of ensuring the supply of raw materials and energy for people's livelihood in western Guangdong and even the Guangdong-Hong Kong-Macao Greater Bay Area.

Currently, as the business scale of the port area continues to expand and the frequency of large energy ships arriving at the port continues to increase, the pressure on water depth maintenance caused by sedimentation in channels and harbor basins increases. The water depth of the channel is a prerequisite for the safe entry and exit of large oil tankers and LNG ships. A smooth channel is the maritime "lifeline" for ensuring energy supply, and there is no room for relaxation.

"Junguang" is my country's first-ever mother-type rake suction dredger with a cabin capacity of 35,000 cubic meters. It has a total length of 198 meters, a maximum digging depth of 120 meters, and a maximum cabin capacity of 38,528 cubic meters. It ranks first in Asia in terms of scale and fills the shortcomings of domestic ultra-large intelligent dredging equipment.

"Intelligence and greenness are the two most prominent advantages of "Chunguang"." The captain of the ship introduced that the ship is equipped with my country's independently developed "one-click dredging" and "dredging and driving in one" intelligent control system, which integrates Beidou + 5G and digital twin technology to achieve fully automatic dredging operations, with construction accuracy reaching centimeter level. The operating efficiency is 2.5 to 3 times higher than that of the previous generation 20,000-square-meter trailing suction dredger. The powerful operating capability can quickly eliminate channel siltation and efficiently restore the design water depth.

As the ultra-large trailing suction dredger in China that has obtained carbon footprint certification, "Chunguang" is not only a powerful tool for dredging operations, but also a benchmark for the green and low-carbon development of domestic dredging vessels. During the operation, the ship dynamically optimizes the equipment operation strategy. Through intelligent stowage, economical speed control, and flexible adjustment of the mud pump speed and high-pressure flushing pressure based on on-site working conditions, it reduces fuel consumption and energy loss while ensuring dredging quality and efficiency, and implements the concept of green offshore construction.

The person in charge of the project said that the "Junguang" maintenance dredging in Bohe Port Area will effectively stabilize the design water depth of the port pool and channel, ensure the safe and smooth entry and exit of large energy ships into the port area, and help further release the energy level of Bohe New Port Area. (over)