As the name implies, gas-fired generator sets are gas-fired generator sets, which are divided into internal combustion generator sets and gas turbine generator sets. They all use gas as fuel. Let's introduce the combustion mode and precautions of the gas generator set.
1. The lean combustion of the gas-fired 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. The disadvantage of this engine is that it emits too much residual oxygen and loses power, but the advantage is that the combustion of fuel in the cylinder is sufficient and the emission of nitrogen oxides is reduced.
2. The combustion mode of the gas-fired generator set is stoichiometric combustion: it refers to the ratio of the actual gas quantity and air quantity in the combustible mixture that can be completely combusted in theory, and is a parameter indicating the proportion of the fuel quantity and air quantity in the combustible mixture.
If the equivalence ratio is greater than 1, it means that the actual air quantity contained in the fuel mixture is less than the required theoretical air quantity, that is, the air quantity is insufficient, and the combustion efficiency decreases with the increase of the fuel equivalence ratio;
On the contrary, if the equivalence ratio is less than 1, it means that the actual air quantity contained in the combustible mixture exceeds the required theoretical air quantity, that is, the air quantity is excessive. The equivalent ratio is actually the reciprocal of the excess air coefficient. This kind of combustion of nitrogen oxides has high emission and high temperature, which can reach 700 degrees Celsius.
3. The rich combustion of the gas-fired generator set means that there is more fuel and less oxygen, but its power is sufficient. However, due to insufficient combustion in the cylinder, it will be discharged to the outside through the smoke pipe. The advantages are full power and low fuel temperature. The disadvantages are high carbon monoxide emission and high fuel consumption.
matters needing attention:
1. The machine room shall be away from the open fire area;
2. The machine room shall be spacious and bright, and ventilation fans shall be installed to ensure good ventilation;
3. During installation, the chassis and foundation shall be leveled with flat sizing block. The contact area shall be more than 60% and evenly distributed;
4. Explosion proof measures shall be taken for indoor lighting, switches, lines and electrical appliances, and they shall be firmly fixed;
5. The machine room shall meet the fire-fighting requirements and be equipped with fire extinguishers and other fire-fighting equipment;
6. A combustible gas alarm device is installed in the machine room to detect the leakage of combustible gas in time.
In a word, the gas-fired generator set has the advantages of turning waste into treasure, convenient operation, high cost-effectiveness, low emission pollution, and suitable for heat and electricity cogeneration. The market prospect is very broad. If you have any relevant needs, please come to our website http://www.digiscrappin.com Consult and understand.