On January 19, 2022, the 80,000-ton semi-submersible ship "Xin Yaohua" built by Guangzhou Shipyard International, a subsidiary of China Shipbuilding Corporation, was named and delivered.

The ship was designed by 708 and is the second largest semi-submersible ship in China. Its load capacity is second only to the largest domestic semi-submersible ship "Xin Guanghua" built and delivered by Guangzhou Shipbuilding International in 2016. It is another member of China's marine power building. Strong general.

The 80,000-ton semi-submersible ship built by China State Shipbuilding Corporation is named "Xin Yaohua", which not only does not forget the meaning of history, but also has the courage to take responsibility and build a strong maritime country!

Excellent diving performance

During the diving experiment during the sea trial, the "Xin Yaohua" submerged to the predetermined depth in only 3.5 hours.

Semi-submersible ship is a kind of transport ship that can "dive". Through the adjustment of its own ballast water, the deck is submerged into the water, and the cargo is lifted from the designated position to complete the loading.

The "Xin Yaohua" has 108 ballast water tanks, and each ballast water tank has a valve that leads directly to the seabed.

When diving, as long as the submarine valve of the corresponding ballast tank is opened through the control system, the ship can automatically dive into the water 30.5 meters and 16 meters above the main deck within 6 hours.

During the floating operation, air is injected into the corresponding ballast water tank through the 4 large air compressors equipped on the ship, and the ballast water in the ballast tank will be automatically discharged out of the ship, and the ship will float.

Powerful performance

"Xin Yaohua" uses four sets of electric propulsion systems as power, and is equipped with two sets of side thrusters at the bow and stern. The ship is powered by 6 main diesel generator sets with a power of 4,500 kilowatts, and has its own state-of-the-art dynamic positioning system.

In addition to DGPS, the ship is also equipped with two positioning systems, laser and radar, with an error of only 0.05 meters, which can implement high-precision operations comparable to "needle embroidery" at sea.

In addition, the ship's power system adopts a redundant configuration, and the failure of any two main generators among the six main generators will not have any impact on the power of the whole ship.

High degree of intelligence

The ship has more than 9,000 automatic control points. If any small equipment on the ship fails, the operator can find it at the first time and carry out remote processing.

The ship's unloading air compressor diving automation program, diving loading computer real-time monitoring and other equipment and systems have achieved localization, further improving the independent supporting ability of the semi-submersible ship's key equipment;

 Overcome the welding deformation control problem of the 60mm steel plate used on the deck surface;

Summarizing the experience and optimizing the process, the construction and installation accuracy requirements of the entire ship's cables have been achieved, so that the "arteries" with a total length of 450 kilometers and a maximum diameter of 68.2 mm of medium-voltage cables are successfully laid.

Only 40 days after the ship was out of the dock, the key node medium-voltage power generation motor vehicle was realized. The 89-day wharf cycle started the trial voyage. The entire wharf construction cycle was controlled within 4 months, which was 2 months shorter than the total construction cycle of the same type of ships. , reaching the international advanced level.Editor/Ma Xue