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Dongyuan 02 underwater sound measurement ship

The North Transfer 991 (Dongyuan 02 = East Distant) is similar to the 639-type dual-body underwater acoustic survey survey vessel. Construction of the Dongyuan 02 vessel began in December 2005 and was completed and put into service in April 2008. The ship is the first thousand-ton small-class water line-surface catamaran ship of China's independent intellectual property rights. The propulsion system adopts the power propulsion mode of ac group network and the steel structure. The ship has the advantages of good wave resistance, good maneuverability, low fuel consumption, spacious working deck and advanced special installation technology, and can carry out testing, marine engineering construction, marine rescue and other tasks at low speed.

It is the first 1,500-ton small waterplane catamaran with independent intellectual property rights in China. It was initiated by CSIC. The established CSSC Dongyuan Technology Development Co., Ltd. is responsible for the overall organization management and coordination of R&D, design and construction. It was jointly designed by 710 Institute and 702 Institute, built by Wuchang Shipyard, and its electric propulsion system is integrated by 712 Institute. The main marine equipment and special test equipment are manufactured by Wuhan Marine Machinery Co., Ltd., Henan Diesel Engine Group Co., Ltd., Shanxi Minxi Heavy Industry Co., Ltd., Chongqing Huayu Electric Instrument Factory, Beijing Great Wall Radio Factory, etc. All grouped products developed by CSIC.

"Dongyuan 02" was China's first ship to use the AC network power propulsion mode of the ship. Propulsion system selected 2 1,000 kW models for CCFJ1000, 2 400 kW models for CCFJ400 diesel generator sets as the main propulsion power station, inverters, propulsion transformers are introduced by Germany's Siemens, 2 Siemens motors as the main propulsion motor, through high-elastic coupling shafts, push bearings, The thrust coupling is advanced, with a total power of approximately 2,800 kW and a single-axis propulsion power of approximately 1,000 kW. The propulsion system has the advantages of low fuel consumption, low noise, energy saving and environmental protection, and can carry out investigation and test at low speed.

The ship has a wide deck area and excellent seakeeping and maneuverability. In the design, it mainly solves the line type optimization of the shallow draft small water line catamaran, the structural design of the large opening double body hull structure, the integration of the integrated electric propulsion system, the development of the high precision long stroke special test device, and the whole ship floating state adjustment aid. Key technologies such as decision systems. In the construction process, the full three-dimensional production design ensures the correct design, weight center of gravity control and manufacturing precision; 11 new processes such as typical submerged welding process, large-scale well welding process, and full ship weight control implementation rules have been prepared. The document solves key construction techniques such as thin-plate welding, weight control, and vibration noise. After the sea navigation test, the ship's performance and various technical indicators have fully met the design requirements.

From the top view, the central hull has a "square well", which should be the working area for the suspension and recycling of underwater sound equipment. Note that there is a small crane there, and there seems to be a towing winch. Such a design differs from that of the US and Japan in the rear of the hull. The layout of the Northern 991 may require anchoring during the measurement work, so the ship has three anchors arranged in front and rear.

The North 991 double body is a small water surface double-body. The displacement is 1,500 tons, and in order to reduce the noise, the first full-electric propulsion is adopted. In terms of appearance, it is more like a civilian ship, far from the might of new measuring vessels.

The 60-meter all-aluminum wave-piercing catamaran has a total length of 60.0 meters, a width of 18.0 meters, a depth of 5.9 meters and a speed of 35 knots. It is currently the largest all-aluminum wave-piercing catamaran in China. The ship adopts the latest all-electric propulsion method developed in China. In the absence of design and construction specifications that can be relied upon in China, CSIC has independently developed these two new ship types.

name indicator
Length/m 64.28
/nmile 1 500
width/m 23.10
self-holding/days 7
submersible width/m 5.1
minimum speed/kn 3
maximum water/m 5.0
crew establishment/person 32
full load displacement/tons 1,500
the staffing/person of the experiment 20
maximum speed/kn 11.83
working sea area offshore
engine unit model CCFJ1000J-W
rated power/speed 1 000 kW/1 500 r.min-1
rated frequency/Hz 50
rated voltage/V 660
fuel consumption rate (0.33 t/h) 198 g/kWh
started compressed air
unit weight/kg12 300
engine unit model CCFJ400J-W
rated power/speed 400 kW/1 500 r.min-1
rated frequency/Hz 50
rated voltage/V 660
fuel consumption rate (0.33 t/h) 210 g/kWh
started compressed air
unit weight/kg7 200
propulsion motor 800 kW/250 r.min-1
- 9000
benefits is low in fuel consumption, low noise, light weight of power station, high propulsion efficiency, and can be tested below 3 kn
shortcomings the power station has a low power, a high failure rate of domestic diesel engines, and expensive maintenance of imported equipment

double body underwater acoustic survey ship double body underwater acoustic survey ship double body underwater acoustic survey ship

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Page last modified: 09-09-2019 18:42:46 ZULU