As its name implies, gas generator set is a gas fired generator set, which is divided into internal combustion generator set and gas turbine generator set. Both of them use gas as fuel. The gas generator set generally consists of engine, generator and controller, as well as optional devices such as pressure stabilizing filter device and gas-liquid separation device. The engine is coaxial connected with the generator and placed on the chassis of the whole machine. Then the muffler and governor are connected to the engine, and the gas source is connected to the gas channel of the engine, The recoil starter with drawcord connected to the engine and the voltage regulator connected to the output end of the generator, wherein the combustible gas in the gas source is natural gas, liquefied petroleum gas or biogas.
The combustion modes of gas generator set mainly include the following:
1. The thin combustion of gas generator set, the gas content in the mixed gas is low, and the ratio of gas fuel to air can reach more than 1:25. This kind of engine is insufficient because it emits too much oxygen and loses power. However, it has the advantage that the combustion of fuel in the cylinder is sufficient and the emission of nitrogen oxides is reduced.
2. The combustion mode of gas generator set is stoichiometric combustion: it refers to the ratio of the actual amount of gas and air in the combustible mixture that can be completely combusted in theory, and it is a parameter that represents the proportion of fuel and air in the combustible mixture. If the equivalence ratio is greater than 1, it means that the actual air content in the combustible mixture is less than the necessary theoretical air volume, that is, the air volume is insufficient, and the combustion efficiency decreases with the increase of the fuel equivalence ratio. If the equivalence ratio is less than 1, it means that the actual air content in the combustible mixture exceeds the necessary theoretical air volume, that is, the air volume is excessive. The equivalence ratio is actually the reciprocal of the excess air coefficient. This kind of combustion of nitrogen oxides has a high displacement and temperature, which can reach 700 ℃ when it is high.
3. The rich combustion of gas generator set means that there is more fuel and less oxygen, but it has sufficient power. However, due to insufficient combustion in the cylinder, it will be discharged outside through the smoke pipe. The advantages are full power, low fuel temperature, but the disadvantages are more carbon monoxide emissions and high fuel consumption.
The above is a detailed introduction to the accessories of gas generator set. I hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude https://www.huannengpower.cn