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Xiangyanghong 22 large buoy working ship

The 3,000-ton large-scale buoy ship No. 1 "Xiangyanghong 22" was built by the former State Oceanic Administration (now the Ministry of Natural Resources). It is mainly used for the maintenance of buoys/subsequent standard inspections (registration), regular deployment, recycling, buoy/submarine emergency deployment, recycling, repair and other safeguards, as well as the ability to perform comprehensive ocean survey tasks such as cross-sectional surveys.

China's first large buoy working ship "Xiangyanghong 22" launched on 30 September 2018 at a port beside the Yangtze River in Wuhan, Hubei Province, as part of the efforts to improve the level of oceanographic observation in the country. The "Xiangyanghong 22", which was built by China Shipbuilding Industry Corporation (CSIC), will make a breakthrough in several aspects in oceanographic observation, such as deploying, recycling and repairing large buoys and subsurface buoys. Prior to that, the jobs involved with the buoys were undertaken by other boats with no professional equipment, and the efficiency was very low.

Since the ship was built, the Wuchuan Group Shipping Company has always adhered to the "10-U0+1" quality concept, attaches great importance to the construction quality and shipowners' opinions, and continuously optimizes the design and construction level to comprehensively improve the quality of the ship. Under the cooperation and efforts of all parties, the ship successfully completed the internal installation work and dock debugging work before leaving the factory. The ship load test, side push test, main propulsion test, and A-frame lifting load were all successfully completed. The data meets the contract and specification requirements.

Chen Zhi, official from the Ministry of Natural Resources Department, said the "Xiangyanghong 22" can continue to work for 60 days and voyage ten thousands sea miles with a highest speed of 16 knots. It is the only large buoy working ship up to 3,000 tons in China, with the strongest buoy working capabilities across the world. It will also broaden the scope of oceanographic observation area in China.

China Shipbuilding Heavy Industry Co., Ltd. built the first large-scale buoy operation vessel, the 3,000-ton buoy operation vessel "Xiangyanghong 22", which successfully triumphed after 9 days of sea navigation test. "Xiang Yang Hong 31" boat will then be launched as planned. After completing the armoring and mooring test work, the two ships were scheduled to be officially delivered in March-April 2019 to perform the management and maintenance tasks of the buoy observation network in the two sea areas of the East China Sea and the South China Sea.

The "Xiangyanghong 22" ship has a total length of 89 meters, a width of 18 meters, a depth of 7.2 meters and a endurance of 10,000 nautical miles. It is the first large-scale buoy operation ship in China. It has the ability to retract large-scale marine monitoring buoys with a diameter of 10 meters and a self-weight of 60 tons. The 10-meter diameter mooring buoy, also known as the large buoy observation system, is a highly automated and comprehensive equipment, and is the main material buoy of China's buoy monitoring network. This type of buoy is a disc-shaped buoy body structure with a diameter of 10 meters. With the equipment and equipment, the total weight is about 50 tons. It is a real behemoth. In the past, only small buoys were able to be transported by ship, while large buoys were usually transported by trawling with buoys or nylon cables onboard in the water.

Compared with towing, shipboard transportation has the advantages of safety, efficiency and speed. However, in order to realize the shipborne transportation of large buoys, the requirements for ship performance are very high. The A-frame equipped with ordinary ships can lift more than 20 tons of heavy objects, and it can't do anything for large buoys weighing more than 50 tons. "Xiangyanghong 22" and "Xiangyanghong 31" are equipped with a large buoy A-frame, with an inner diameter of 22.9 meters, an inner diameter of 14.5 meters, a static safety of 75 tons, and a lifting of more than 50 tons of large buoys. It is "a piece of cake"! With the blessing of the A-frame of the super-large buoy operation, the 10-meter buoy can finally "sit" on board, instead of being "drag" away.

The "Xiangyanghong 22" is mainly used for the maintenance of buoys/subsequent standard inspections (registration), regular deployment, recycling, buoy/submarine emergency deployment, recycling, repair and other safeguards, as well as the ability to perform comprehensive ocean survey tasks such as cross-sectional surveys.

The ship is the only working ship in China that has the ability to hoist and store 10 meter large-scale marine monitoring buoys. It is also the most powerful working ship for lifting buoys internationally.

During the sea trial, the “Xiangyanghong 22” delivery team coordinated and coordinated, and coordinated with the shipowners, ship inspection and service providers in accordance with the navigation test plan to ensure the smooth development of the pilot projects. More than 50 test items, including the ship propulsion and pod system, hull performance test, DP and FMEA, and unmanned cabin test, all met the design requirements. Among them, the speed of the two motors in the speed test is 100%, the speed reaches 16.17 knots (the design speed is 16 knots), which meets and exceeds the design requirements. The entire trial process was unanimously recognized and praised by the shipowners and China Classification Society.

It fills the gap of the type of ship and has the capability of all-weather marine buoys. It is suitable for offshore deployment, maintenance and recycling of various buoys, submersibles and underwater survey equipment. Its putting into use will greatly improve the work efficiency and quality of offshore operations and provide a strong guarantee for the operation of China's large-scale marine buoy observation network. On the morning of 30 October 2018, the second 3,000-ton large-scale buoy operation vessel built by the Wushu Group for the State Oceanic Administration, “Xiangyanghong 31”, was successfully launched at the Wuchuan Group headquarters. Chen Huaibei, deputy director of the South China Sea Branch of the State Oceanic Administration, Deng Aimin, director of the Industry and Industry Department of the CSIC Research Institute of CSIC, and Wang Yiling, deputy general manager of the Wuchuan Group, cut the ribbon for “Xiangyanghong 31”. Chen Huaibei went to the bottle throwing ceremony.

"Xiang Yang Hong 22" and " Xiang Yang Hong 31" are owned by the Department of Natural Resources Branch of the East China Sea, South China Sea Branch organized and implemented, China Shipbuilding Industry Corporation Seventh Design Institute, Wuchang Shipbuilding Industry Group Co., Ltd. production. The whole ship is built with EH36 low-temperature high-strength steel.

"Xiangyanghong 31" is a sister ship of "Xiangyanghong 22" launched a month earlier. It is the first batch of professional marine buoys in China. It fills the gap of the type of ship and has the ability to operate all-weather sea buoys. Offshore deployment, maintenance and recycling of buoys, submersibles and underwater survey equipment.

"Xiangyanghong 31" installed for the first time to install a super A-type hanger for the 10-m large buoy at sea, and it has the ability to stop the buoy during the retracting and unloading operation; the 6000-meter cable retracting device was realized for the first time. The one-time continuous uninterrupted work of recycling, laying and maintaining the long anchorage; the first application of the rotary marking device will greatly improve the safety of the personnel during the marking operation.

“Xiangyanghong 31” is the first 3,000-ton new marine buoy operation ship in the South China Sea. After completion, it will be delivered to the South China Sea Branch of the State Oceanic Administration, participating in a number of major ocean observation missions, and further strengthening China's large-scale buoy support capability.

The construction of the ship was organized and implemented by the Nanhai Branch of the Ministry of Natural Resources, designed by the Seventh One Institute of China Shipbuilding Industry Corporation and built by Wuchang Shipbuilding Industry Group Co., Ltd. The ship's design and construction process are heavily based on military technology and standards. The installation of the cabin area and main equipment incorporates a silent noise reduction process, which fully embodies the concept of the "shipping of civilian ships, integration of military and civilian".

It is equipped with a full- rotation rudder propeller integrated and infinitely variable electric propulsion system. Two side pushers and DP2 -level dynamic positioning are provided in the crotch to fully meet the requirements of buoy offshore operations. At the same time, the vessel was first installed specifically for offshore deployment, recovery, maintenance 10 meters large buoys super A -type hangers, and have the ability to float retractable stop swing operation process to ensure that the personnel buoys marine operations and ship safety. For the first time, the 6000- meter cable retracting device has realized the one-time continuous and uninterrupted work of recycling, laying and maintaining the ultra-long anchor system, which will greatly shorten the offshore operation time and improve the working efficiency of offshore operations. According to the special requirements of the buoy operation, the first application of the rotary marking device will also greatly improve the safety of personnel during the marking operation. The risky operation of placing small boats and jumping states will become a thing of the past.

The types of marine observation buoys in China mainly include mooring buoys, drifting buoys and submersible buoys. The mooring buoys are divided into 10 m diameter, 6 m diameter and 3 m diameter. The 10- meter diameter mooring buoy, also known as the large buoy observation system, is a highly automated and comprehensive equipment, and is the main material buoy of China's buoy monitoring network. This type of buoy is a disc-shaped buoy body structure with a diameter of 10 meters. With the equipment and equipment, the total weight is about 50 tons. It is a real behemoth . It is not an easy task to transport this monster to a designated sea area. . In the past, only small buoys were able to be transported by ship, while large buoys were usually transported by trawling with buoys or nylon cables onboard in the water.

When towing, the speed in the open sea is less than 6-8 knots; in the port area, narrow waterways and ships with dense navigation, the buoy is combined with the hull by the rubber strip, and the speed is less than 4 knots. Compared with towing, shipboard transportation has the advantages of safety, efficiency and speed. However, in order to realize the shipborne transportation of large buoys, the requirements for ship performance are very high. The A-frame equipped with ordinary ships can lift more than 20 tons of heavy objects, and it can't do anything for large buoys weighing more than 50 tons. The " Xiang Yang Hong 22" , " Xiang Yang Hong 31" is equipped with a large buoy job A -frame, high internal diameter of 22.9 m, an inner diameter of 14.5 meters wide, static security in line with 75 tons, lifting more than 50 tons of large buoys For it it is "a piece of cake"! With the blessing of the A -frame of the super-large buoy operation , the 10- meter buoy can finally " sit " on board, instead of being " drag " away.

In order to more easily fix the standard body and the anchor system, it is more convenient to hoist and recycle the buoy. “ Xiangyanghong 22” and “ Xiangyanghong 31” have made a series of R&D designs, one of which is the anti-slip device for retracting the buoy. The super-large buoy operation type A lifting hoist can lift the buoy. In the case of sea level 3 , if the suspended buoy is not stabilized, the buoy with more than 50 tons is like a big hammer that dangles. It is possible to hit the hull at any time, threatening the safety of personnel and equipment. To this end, the buoy boat's A -type hanger is equipped with a follow-up anti-sway device. The two anti-swaying heads in the A -frame are firmly pulling and stabilizing the buoy, making it a calm or calm pier. The undulating sea surface can be placed in a designated position. To deploy the buoy and its mooring system to the predetermined buoy station at sea, it is necessary to find the right position, stop the ship unbiasedly, and fix the position of the hull for a long time, so as to release the buoy by the crane and the anchor machine. Anchor system. This step requires a high performance on the ship. The sea ascending ship is different from driving on the road. If the power is on, the ship will move; when the power is turned off, the ship will drift away with the wind and current.

The " Xiangyanghong 22" and " Xiangyanghong 31" ships have dynamic positioning functions. The ship can use its own power to offset the influence of wind and current, and coordinate the cooperation with the electric propeller, rudder and stern thrust on the ship. Selecting the right angle with the flow direction, so that the " Xiangyanghong 22" and " Xiangyanghong 31" ships can meet the requirements of the positioning and retracting of the buoy under the level 3 sea ??conditions. It is worth mentioning that the rear deck work area of “ Xiangyanghong 22” and “ Xiangyanghong 31” is particularly flat and spacious, and can place and fix large buoys.

As the first batch of new professional buoys in China, “ Xiangyanghong 22” and “ Xiangyanghong 31” provide space for the operation of the buoys for regular registration maintenance, deployment and recycling, and also reserve space. Investigation, scientific investigation, ecological monitoring, marine disaster investigation, operation and maintenance management of offshore platform stations, to the greatest extent reflect the principle of optimal allocation and intensive resources. The ship is equipped with an advanced comprehensive laboratory and sample room. In addition to the standard anchor chain, it also reserves space for various marine observation equipment such as hydrology, meteorology, water quality and acoustic sensors.

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Page last modified: 04-10-2019 18:25:33 ZULU