China Merchants Marine Offshore Research Institute Co.

China Merchants Deepsea Research Institute (sanya) Co.

Zte Corporation

China Merchants Heavy Industry (jiangsu) Co., Ltd.

China University of Petroleum

China Merchants Marine and Offshore Research Institute Co., Ltd.

Jiancheng Liu

Lixin Xu

Hui Cao

Xiuzhan Zhang

Haiming Jiang

Hejing Liu

Xiaoyu Meng

Shipeng Wang

Xingqun Li

Chuanbo Cong

Qiong Zhou

Qinjing Guo

A drag-reducing separator plate for a moonpool, wherein the upper part thereof is a straight wall perpendicular to the sea level, the lower part thereof is connected to a baffle, and a connecting portion is connected between the straight wall and the baffle. The connecting portion may be in the shape of an arc. The shape of the drag-reducing separator plate matches that of the rear wall of the moonpool. During navigation, the drag-reducing separator plate is located in the middle or front of the moonpool, and can cooperate with a drag-reducing notch on the rear wall of the moonpool to greatly reduce the drag induced by intense sloshing of water in the moonpool during navigation of an offshore vessel. When offshore operations are performed under a station keeping condition, the drag-reducing separator plate is moved to the rear wall of the moonpool to avoid hindering the offshore operations.

Drag-reducing separator plate and design method therefor

An environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system, comprises a water injection pump, a water injection riser, a deep-sea multiple high-pressure silo feeding device, a lifting riser, a dewatering device and a pipeline. The water injection pump and the dewatering device are fixed on a mining ship. The water injection pump is connected to the deep-sea multiple high-pressure silo feeding device through the water injection riser. The deep-sea multiple high-pressure silo feeding device is connected to the dewatering device through the lifting riser. The water injection pump is connected to the dewatering device through the pipeline. Seawater is pumped into the water injection riser by the water injection pump, then ore is fed into a high-pressure hydraulic pipeline by the deep-sea multiple high-pressure silo feeding device to be mixed with the seawater, and an obtained ore and seawater mixture is lifted to the mining ship on the sea surface.

Environmentally-friendly semi-closed loop deep-sea ore hydraulic lifting system

A deep-sea ore hydraulic lifting system with a deep-sea single high-pressure silo feeding device, comprises a water injection pump, a water injection riser, a deep-sea single high-pressure silo feeding device, a lifting riser, a dewatering device and a pipeline. The water injection pump and the dewatering device are fixed on a mining ship. The water injection pump is connected to the deep-sea single high-pressure silo feeding device through the water injection riser. The deep-sea single high-pressure silo feeding device is connected to the dewatering device through the lifting riser. The water injection pump is connected to the dewatering device through the pipeline. Seawater is pumped into the water injection riser by the water injection pump, then ore is fed into a high-pressure hydraulic pipeline by the deep-sea single high-pressure silo feeding device to be mixed with the seawater, and an obtained ore and seawater mixture is lifted.

Deep-sea ore hydraulic lifting system with deep-sea single high-pressure silo feeding device

Provided are a message interaction processing method and device. The method includes: a first buffer with a preset size is applied for to a Central Processing Unit (CPU) and/or a chip; and message interaction is performed between the CPU and the chip through the first buffer, wherein the first buffer is used for storing at least two messages. By the disclosure, the problem that frequent switching between states may cause high resource overhead and low message transmission efficiency under the condition of large message interaction between the CPU and the chip is solved, and the effect of remarkably improving message sending and receiving efficiency and performance of network equipment is further achieved.

Method and apparatus for message interactive processing

Provided are a method for implementing counting control of a counter in a network chip, and a network chip. The method includes: periodically generating a counting value scanning message; reading a counting value of a corresponding counter item according to the generated counting value scanning message; analyzing and judging whether the read counting value is less than a preset overflow threshold; and informing the processor to handle counting abnormality of the counter when the read counting value is not less than the preset overflow threshold. The system can realize the periodic diagnosis on the counting state of the counter in the network chip by using a packet generator and a message processing engine, so as to prevent the processor from constantly sampling the counter to check the state of the counter, and ensure the calculation performance of the processor.

Method for implementing counting control of counter, and network chip

Growing community of inventors

Shenzhen, China

Jiancheng Liu