The first and largest domestically produced "automatic positioning system for mooring ocean work platforms" has passed expert appraisal.

2012-03-11 13:20

The first domestically produced "Ocean Operation Platform Mooring Automatic Positioning System" independently developed by Nantong Liwei Machinery Co., Ltd. was 2 in 2012

passed the Jiangsu Province New Product and New Technology Appraisal. The appraisal committee consisted of expert professors from the China Shipbuilding Group 708 Research Institute, Nanjing University of Aeronautics and Astronautics, Nanjing University of Science and Technology, and Jiangsu University of Science and Technology. They listened to the project's work summary and technical summary, reviewed relevant technical documents, and inspected the production site. The appraisal committee experts unanimously agreed that the achievement's technical level is domestically leading, filling a domestic gap. The system is a technology-intensive product integrating 12 mooring winches with a rated pulling force of 150T and a rope capacity of 2700 meters, and a constant tension electrical automatic control system, pneumatic and hydraulic control. It provides technical equipment for China's marine development and national defense construction and will play a very important role in promoting the domestication of China's marine and shipbuilding industries.

The main technological innovations and advancements of this product are:

1. The overall design of the system is reasonable, the structure is compact, the automation level is high, the detection and control system is perfect, safe and reliable, and suitable for use in offshore platform operations such as lifting, pipelaying, salvage, drilling, and wind power installation.

2. This achievement has independent intellectual property rights and has achieved technological innovation: (1) The use of pseudo-differential feedback control technology ensures the stability and accuracy of the mooring automatic positioning constant tension control system; (2) A special type of rope groove winding structure was developed to improve the stress state of the steel wire rope and extend its service life; (3) A double-helix double-screw rope discharging device structure was adopted to meet the requirements of rapid release of steel wire rope; (4) The developed automatic tension adjustment system realizes the collaborative operation of multiple mooring winches.

3. The product has obtained

the ABS classification society inspection and approval certificate.

The system was shipped to the semi-submersible ocean operation platform project of CIMC Raffles Offshore Engineering Co., Ltd. in Yantai on March 8, 2012, for installation and use.

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