Diesel and natural gas dual-fuel power generation system

Abstract

The invention discloses a diesel and natural gas dual-fuel power generation system, and aims to overcome the defect that insufficient gas supply to marine power generators is caused easily by the lowLNG gasification speed. The system comprises a dual-fuel power generator, a diesel cabin, a natural gas storage cabin, a natural gas regasification device, a volatile gas compressor, a buffer tank, aboiler and a condenser; natural gas volatilized by the natural gas storage cabin is stored in the buffer tank to be used as fuel for the dual-fuel power generator; when the volatile gas is insufficient, LNG inside an LNG storage tank is gasified into the gas state by the natural gas regasification device and is sent into the buffer tank for supplementation; when the volatile gas is excessive, onepart is sent into the volatile gas compressor to be compressed into the LNG to be recovered into the LNG storage tank, and the other part is sent into the boiler to be used as the fuel. The volatile natural gas is sufficiently utilized, and the energy saving and environmental protection effects are realized. The LNG gasification speed is high, the gas supply to the marine power generators is sufficient and stable, and the performance of the power generators is guaranteed.

Description

Technical field [0001] The invention relates to generator technology, and more specifically, it relates to a diesel and natural gas dual-fuel power generation system. Background technique [0002] The marine dual-fuel generator set diesel engine can realize the mixed use of natural gas and diesel, that is, it can operate in diesel-natural gas dual fuel mode or in pure fuel mode. Marine natural gas fuel is generally stored as liquid natural gas (LNG), which is gasified into gaseous natural gas for use by generators. As a clean and efficient energy source, LNG is increasingly popular, and more and more ship owners choose LNG as the power fuel for ships. However, in many cases, the LNG gasification rate is slow, which may cause insufficient gas supply to the generator and affect the performance of the generator. Summary of the invention [0003] The invention overcomes the phenomenon that the LNG gasification speed is slow, which is easy to cause insufficient gas supply to the mari...

AI Technical Summary

Problems solved by technology

However, in many cases, the gasification speed of LNG is slow, which may easily cause insufficient gas supply to the generator and affect the performance of the generator.

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