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Gas lubricating anti-drag energy-saving device

An energy-saving device and gas-lubricated technology, which is applied in the direction of hull, hull design, transportation and packaging, etc., can solve problems such as constraints, restrictions on the use of technology on actual ships, and failure to achieve good energy-saving effects

Pending Publication Date: 2018-05-08
CSIC SHANGHAI MARINE ENERGY SAVING TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many new energy-saving and emission-reducing measures on the market, such as sails, solar energy, etc., but none of them have achieved good energy-saving effects, and are restricted by the use environment, which severely limits the actual use of these technologies

Method used

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  • Gas lubricating anti-drag energy-saving device

Examples

Experimental program
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Effect test

Embodiment 1

[0074] figure 2 , image 3 and Figure 4 The ship shown is a gas lubrication drag reduction test ship, which is a test sample ship specially built by China Ship Science Research Center to study gas lubrication drag reduction technology. The length of the ship is 23.5m, the molded width is 3.8m, the molded depth is 2.6m, the design draft is 1.25m, and the design speed is 4.6 knots.

[0075] see figure 2 , image 3 and Figure 4 It can be seen that the overall composition of the gas lubrication drag reduction and energy-saving device includes several pressure stabilizing chambers (2), ventilation pipes (5) and gas supply equipment. The pressure stabilizing chamber (2) is arranged inside the ship bottom plate (3) along the ship's width direction, and several pressure stabilizing chambers (2) are arranged along the ship's length direction. The bottom of the pressure stabilizing chamber (2) is provided with evenly distributed jet holes (4), the stabilizing chamber (2) is co...

Embodiment 2

[0080] see Figure 5 , 6 , 7. The present invention is an energy-saving and drag-reducing device reformed at the bottom of an existing ship. It includes: a plenum chamber (2), an air jet hole (4), an air pocket at the bottom of a ship, an air supply device, an air transmission pipeline and an air transmission control system. see Figure 5 , The head of the air pocket of the ship is equipped with a diversion device, and the tail of the air pocket is provided with a contraction section.

[0081] The bottom air pockets are located outside the bottom of the ship, and in the plane area of ​​the bottom of the ship, the skirts are welded around the bottom of the ship to construct pockets, which account for 95% of the flat bottom of the ship. A plurality of jet holes (4) are uniformly arranged on the bottom cavitation area of ​​the ship bottom plate, and the pressure stabilizing chamber (2) is a narrow and long gas channel arranged on the inner side of the ship bottom plate and cor...

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Abstract

A marine gas lubricating anti-drag energy-saving device comprises pressure stabilizing cavities, a gas spraying hole, a ship bottom gas hole, gas supply equipment, a gas delivering pipeline and a gasdelivering control system, wherein the ship bottom gas hole is positioned in the outer side of a ship bottom plate; the pressure stabilizing cavities are formed in the inner side of the ship bottom plate; the gas supply equipment is connected with the gas delivering pipeline; the gas delivering pipeline delivers gas to the various pressure stabilizing cavities via the gas delivering control system; the gas is sprayed out through the gas spraying hole in the ship bottom plate; and a stable gas layer is formed in the air hole in the outer surface of a ship bottom. The gas delivering control system comprises a flow meter, a pressure gauge, a voidage meter, a rolling sensor, an electric control valve, a self-adaption control program and an alarming system. The pressure stabilizing cavities arelong and narrow gas channels formed by welding stainless steel components to the inner side of the ship bottom plate. The ship bottom air hole is positioned in a plane region of the ship bottom plate. The gas supply equipment is an air blower or an air compressor. According to the gas lubricating anti-drag energy-saving device, the bottom of a ship is ventilated, thus, a thin gas layer is formedand maintained on the bottom of the ship, the bottom surface of the ship is isolated from water, the wet superficial area is reduced, and anti-drag and energy-saving effects are achieved.

Description

technical field [0001] The invention relates to ship energy-saving and consumption-reducing technology, in particular to a novel ship-used drag-reducing and energy-saving device. Background technique [0002] With the gradual emergence of the world energy crisis, international oil prices have been fluctuating and rising since the beginning of the 21st century, which keeps shipping costs high. Therefore, reducing operating costs has become a common topic in the shipping industry. At the same time, various environmental problems caused by greenhouse gas emissions are becoming more and more serious, and have received extensive attention from the international community. More importantly, with the gradual increase in IMO requirements for ship energy efficiency indicators, in order to achieve the goal of "increasing the energy efficiency of ships built in and after 2025 by 30% on the existing basis", only existing ship type optimization, Main engine optimization and conventional...

Claims

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Application Information

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IPC IPC(8): B63B1/38
CPCB63B1/38B63B2001/387Y02T70/10
Inventor 高丽瑾周伟新恽秋琴陈少峰魏以迈
Owner CSIC SHANGHAI MARINE ENERGY SAVING TECH DEV CO LTD