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Gas-electric hybrid type ship hybrid power system with LNG cooling

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, and improve acceleration and deceleration performance, reversing performance, and reliability. and applicability, the effect of a wide range of power coverage

Inactive Publication Date: 2019-06-14
HARBIN ENG UNIV
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  • Summary
  • 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 hybrid type 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 series-connected marine 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 Electric charging device 6, ship power grid 7, generator transformation device 8, generator 9, LNG engine 10, gearbox 11, clutches 12a, 12b, 12c, propellers 13a and 13b, electric motors 14a and 14b, shunt 15, LNG Pump 16, shut-off valve 17, LNG liquid storage tank 18, LNG gasification cold energy heat exchange device 19, gas valve 20, BOG gas tank 21, radiators 22a and 22b, engine coolant expansion tank 23, fuel cell coolant expansion Water tank 24, surge tank 27, gas filter and dryer 28. Its connection relationship is: the generator 9 is connected with the gearbox 11 through the clutc...

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Abstract

The purpose of the invention is to provide a gas-electric hybrid type ship hybrid power system with LNG cooling. The system includes a gas engine, a generator, motors and a natural gas storage and supply device. The gas engine is connected to a gear case through a shaft motor. The motors are connected to the gear case through clutches. The propellers are connected to the motors. An engine coolingsystem and a fuel cell cooling system are connected to an LNG gasification heat exchanger. An electric power source is a fuel cell, the generator and a storage battery. The gas-electric hybrid type ship hybrid power system with the LNG cooling can meet requirements of ships in various environment and working conditions through the adopted arrangement of a plurality of energy forms, improves running efficiency of the gas engine, the shaft motor and the motors, 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, further improves the utilization efficiency of fuel and reduces emission, thereby improving the power response of the ships, improves an application range of the system, and further improves the utilization rate of fuel.

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
CPCB63H21/20B63H2021/202Y02T70/5218Y02T70/5236B63H21/17B63H21/38
Inventor 范立云肖朝辉徐超卢耀文张恒熙
Owner HARBIN ENG UNIV
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