Gas power generation set

Abstract

The invention discloses a gas power generation set which comprises a power generator body. The power generator body comprises an energy supply system, an energy transduction system and a control unit. The energy supply system comprises a gas supply unit, a gas jet valve and a mixer, wherein the gas jet valve and the mixer are connected with the gas supply unit. The energy transduction system comprises an air filter and a plurality of sensors connected with the air filter. The control unit is composed of an electronic control unit (ECU). The sensors comprise the air inlet temperature pressure sensor, the water temperature sensor, the crankshaft position sensor, the oxygen sensor and the phase position sensor. The air filter comprises an air inlet pipeline. The mixer is arranged on the air inlet pipeline. Control is flexible, and single-point jet control or multi-point jet control can be conducted according to application conditions. The wide-range oxygen sensor is adopted, so that accurate closed-loop control over the air-fuel ratio is achieved in the whole process; electronic throttle valve control is achieved; boost pressure closed-loop control is achieved; accurate control over engine power and a torque curve is achieved; the air-fuel ratio control precision is high, and air consumption is low; parts of a system are simply and flexibly distributed; the system is stable and reliable, and the price is low.

Description

technical field [0001] The invention relates to the technical field of generating set design, in particular to a gas generating set. Background technique [0002] At present, there are two main types of technologies for converting diesel vehicles to gas engines on the market: [0003] 1. Diesel-natural gas dual fuel engine [0004] The diesel-natural gas dual-fuel engine is ignited by a small amount of diesel oil. Due to the limitation of the minimum oil quantity, the replacement rate of natural gas is only 60%-90%. The dual-fuel engine can obtain better economic performance and power performance at a medium load and above. But under the condition of small load, because the mixture gas is too lean, the combustion deteriorates, and a large amount of incomplete combustion products are discharged with the exhaust gas, which greatly increases the emission of CO (carbon monoxide) and HC (hydrocarbons), and the thermal efficiency decreases. The economic benefit of this modif...

AI Technical Summary

Problems solved by technology

[0006] 1. Fuel control is rough, matching adjustment is difficult, and fuel consumption is high; 2. The air-fuel ratio cannot be accurately controlled, the exhaust temperature is high, and the risk is high; 3. The ignition time is not accurate enough to easily cause the engine to backfire; 4. Insufficient power; 5. Can only be used on naturally aspirated or less powerful light duty engines

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