Branching gas inlet device of gas generator set

Abstract

The invention discloses a branching gas inlet device of a gas generator set. The device comprises a gas inlet system, and the gas inlet system comprises gas inlet modules, an air inlet module and a mixer; each gas inlet module comprises a pressure regulating valve and a gas regulating valve which are communicated through a gas pipeline; the air inlet module comprises an air regulating valve; a gas engine is respectively provided with the two groups of gas inlet modules, the gas regulating valves are communicated with the mixer, and through an automatic closed-loop control system, the engine and the generator set can meet the gas inlet requirement of low-heating-value gas on the premise of not changing configuration, and can meet the component and pressure change of a single gas source; and by the adoption of the technical scheme, when the gas engine and the generator set use low-heat-value combustible gas as fuel, operation is more stable and reliable.

Description

technical field [0001] The invention relates to the technical field of gas engines, in particular to a gas engine, and in particular to a gas-fired generating unit group air intake device. Background technique [0002] With the development of the country's economy and society, piston gas engines and generator sets, as distributed green energy equipment, will use industrial waste gas and other combustible gases as fuel to generate electricity or form a combined cooling, heating, and power supply system, which will become important energy equipment. , to promote the adjustment of the national energy structure and the development of low-carbon environmental protection industries. Since gas engines and generating set prototypes are usually developed according to natural gas engines, when the actual gas sources used are methane, biomass gas, gas and other low calorific value combustible gases, the main combustible component of these combustible gases, methane The content is much...

AI Technical Summary

Problems solved by technology

Since gas engines and generating set prototypes are usually developed according to natural gas engines, when the actual gas sources used are methane, biomass gas, gas and other low calorific value combustible gases, the main combustible component of these combustible gases, methane The content is much lower than that of natural gas, and the gas source pressure is usually low pressure. As a result, when gas engines and generator sets use these combustible gases as fuel, the configurations of the engines and generator sets, especially the intake system, cannot meet the requirements of these combustible gases.

[0003] When the intake system of a natural gas engine or generator set uses gas with a low calorific value as the gas source, the intake system will result in insufficient gas intake and improper adjustment of the air-fuel ratio of the mixer, and the low calorific value usually changes with the adjustment of the production process , the composition and pressure of the gas source are also changing, and the intake system cannot meet the adjustment of the gas intake volume and air-fuel ratio under the change of the gas source, resulting in the inability of the gas engine and generator set to run stably

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