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Three-engine double-propeller diesel-gas-electric hybrid ship power system

A ship and power technology, applied in the field of ship hybrid power system, can solve the problems of battery capacity limitation of endurance, speed acceleration and self-control that cannot achieve high performance, achieve excellent dynamic response, improve reliability and applicability, power A wide range of effects

Inactive Publication Date: 2019-06-14
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of power generation methods, power density and energy storage technology, pure electric ships at this stage cannot achieve high-performance speed, acceleration and self-control, and their endurance is also limited by their battery capacity.

Method used

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  • Three-engine double-propeller diesel-gas-electric hybrid ship power system

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Embodiment Construction

[0032] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0033] combine figure 1 , the present invention is a three-engine dual-blade diesel-gas-electric hybrid ship power system, including LNG tank 1, gasification heat exchanger 2, ship power grid 3, shore power device 4, ship load 5, battery 6, battery power conversion device 7. Electric motor 8, propeller 9a, 9b gearbox 10a, 10b, diesel engine 11, clutch 12a, 12b, 12, c12, 12d, 12e, 12f gas engine 13a, 13b reversible motor 14, reversible motor transformer 15. Its connection relationship is: the output end of the gas machine 13a is connected with the input end of the gear box 10b through the clutches 12a, 12d, the reversible motor 14 is connected with the gear box 10b through the clutch 12c, the propeller 9b is connected with the output end of the gear box 10b; the gas machine 13b, The electric motor 8 is connected with the input end of the gear box 10a, and the prop...

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Abstract

The purpose of the invention is to provide a three-engine double-propeller diesel-gas-electric hybrid ship power system. The system includes gas engines, a diesel engine, a generator, a motor, a storage battery, clutches, gear cases, propellers, a natural gas storage and supply device, substation devices, a shore power device, a ship power grid, and a ship load. The first gas engine, the second engine and the diesel engine are connected to the gear cases through the clutches. The motor and the generator are connected to the gear cases through the clutches. An electric power source is the storage battery and a reversible motor (a generator mode). The three-engine double-propeller diesel-gas-electric hybrid ship power system adopts a plurality of energy form arrangements, has a plurality ofworking modes, can meet requirements of ships in various environment and working conditions, can maintain the gas engines and the motor in a high efficiency zone all the time, reduces the fuel consumption and discharge of the gas engines, improves the power response of ships, and enlarges seaworthiness of the ships.

Description

technical field [0001] The invention relates to a ship power system, in particular to a ship hybrid power system. Background technique [0002] With the rapid rise of international oil prices and the implementation of increasingly stringent emission regulations, higher requirements are placed on the economy and emission of ships. Energy conservation and emission reduction have become an important task in the development of the national economy. Ships are high-energy-consuming means of transportation, and their energy-saving and emission-reduction technologies have become one of the hotspots of everyone's attention and research. [0003] As a future environmental strategy, we aim to reduce energy consumption and CO2, SOx, NOx and PM emissions. There are many ways to reduce pollution and emissions from ships, the best of which is the use of alternative energy sources. Natural gas as engine fuel is an inevitable trend in the development of marine engines in the future. Natura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/20B63H23/10
Inventor 范立云肖朝辉万雷陈澳雪卢耀文刘洪张恒熙
Owner HARBIN ENG UNIV
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