Intelligent LNG power generation ship

Abstract

The invention relates to an intelligent LNG power generation ship. The intelligent LNG power generation ship is provided with an LNG storage tank, an LNG gasification device, a gas generator set, a gas buffer device, a central control device, a power distribution and transformation device, an emergency treatment system, a ship-shore connection system, a load metering device, a condenser, a BOG heater, a booster pump set, a sea water pump set, a BOG storage device, a liquid phase separation device and a gas metering device. According to the intelligent LNG power generation ship, the real-time parameter data of the demand side can be processed by a central processing unit to accurately control the amount of LNG extracted in an LNG tank and accurately control the amount of seawater extractedby a carburetor or the amount of burned natural gas, thereby achieving stable and reasonable gas supply; the final electricity supply meets the demand and the total amount of fuel does not cause any waste; the waste and environmental pollution generated by burning or air emission caused by the excessive pressure in the buffer tank due to excessively large amount of gasification can be avoided.

Description

technical field [0001] The invention relates to a power generation ship, in particular to an intelligent liquefied natural gas (abbreviated as LNG) power generation ship. Background technique [0002] Prior art 1 (see multifunctional LNG power generation ship, publication number 106184691A, applicant Shanghai Xinao New Energy Technology Co., Ltd.) relates to a multifunctional LNG power generation ship, see image 3 , the generating set includes a gas generating set and a dual-fuel generating set, the gas generating set A is connected to the gas supply pipeline of the gas generating set B, and the dual-fuel generating set A is connected to the gas supply pipeline of the dual-fuel generating set B; the switchboard is connected to the gas Generator set A, gas generator set B, dual-fuel generator set A, and dual-fuel generator set B are connected; external power supply device, frequency conversion and voltage conversion equipment A, frequency conversion and voltage conversion equ...

AI Technical Summary

Problems solved by technology

Although it can realize the functions of power generation and external transmission, it cannot realize the precise control of LNG gasification, power generation and external transmission

When the load demand of the power grid decreases, the existing power generation ships cannot adjust themselves to reduce fuel consumption and total power generation, let alone reduce the total amount of gasified LNG and the amount of seawater pumped for gasification

There is a gap period waiting for manual intervention in energy output and consumption, which will obviously cause a variety of energy waste, safety hazards and environmental pollution risks

For example, if there is too much power generated during the idle period, but there is no load demand, the electric energy can only be lost in the form of heat in the grid; the excess LNG gasified during the idle period consumes a large amount of seawater, and the Seawater will consume the ship's own electricity and other energy sources; the excess natural gas produced during the idle period is more than 600 times larger than the volume of LNG in the liquid state. If it cannot be burned, the load of the high-pressure storage system will increase. It brings huge safety hazards to the whole ship. If it is directly discharged into the air, the greenhouse gas effect of methane is 400 times that of CO2, which will bring great environmental pollution.

Moreover, the existing LNG power generation ship technology requires manual intervention, which may cause unstable demand for electricity, gas, etc., waste of energy consumption, and even safety accidents due to inaccurate manual control or misoperation.

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