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Gas-electric parallel ship hybrid power system with LNG cooling

A hybrid power system and parallel technology, applied in the field of ship power system, can solve the problems of speed acceleration, self-control, and battery capacity constraints that cannot achieve high performance, so as to improve acceleration and deceleration performance and reversing performance. Reliability and serviceability, effect of balancing ship load

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

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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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  • Gas-electric parallel ship hybrid power system with LNG cooling

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Embodiment Construction

[0030] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0031] combine figure 1, the present invention is a parallel ship hybrid power system with LNG gasification cooling engine and fuel cell, including fuel cell 1, fuel cell power conversion device 2, storage battery 3, battery power conversion device 4, ship load 5, shore power Charging device 6, ship power grid 7, LNG engines 8a, 8b, reversible motor transformation device 9, reversible motor 10, clutches 11a, 11b and 11c, propeller 12, gearbox 13, LNG liquid storage tank 14, stop valve 15, LNG Pump 16, flow divider 17, BOG tank 18, LNG gasification cold energy heat exchange devices 19a, 19b, radiators 20a and 20b, coolant expansion tanks 21a, 21b, surge tank 22, gas filter and dryer 23. The gas machines 8a and 8b are respectively connected to the gear box 13 through the clutches 11a and 11c, the reversible motor is connected to the gear box 13 through the clutch 1...

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Abstract

The purpose of the invention is to provide a gas-electric parallel ship hybrid power system with LNG cooling. The system includes gas engines, a reversible motor, a fuel cell and a storage battery. The two gas engines are connected to input ends of a gear case through clutches. The reversible motor is connected to the gear case through a clutch. A propeller is connected to an output end of the gear case. An engine cooling system and a fuel cell cooling system are connected to an LNG gasification heat exchanger. The gas-electric parallel ship hybrid power system with LNG cooling can meet requirements of ships in various environment and working conditions through the adopted arrangement of a plurality of energy forms and a plurality of working modes, improves running efficiency of the gas engines and the reversible motor, and utilizes LNG gasification cold energy so as to reduce the power of a heat dissipation fan and a liquid coolant circulating pump, reduce the area of a radiator and improve the integration of the system, thereby improving the utilization efficiency of fuel, reducing emission and improving an application range of the system.

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] Natural gas as engine fuel is an inevitable trend in the development of marine engines in the future. Natural gas has the advantages of environmental protection, economical benefits, safety and reliability. As a power generation device with high power generation efficiency, low environmental pollution, high specific energy, low noise, high r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/20B63H21/38B63H23/10
CPCY02T70/5218Y02T90/40
Inventor 范立云顾远琪徐超卢耀文张恒熙
Owner HARBIN ENG UNIV
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