Air-fuel ratio rapid automatic adjusting system for gas generator set

Abstract

The invention relates to an air-fuel ratio rapid automatic adjusting system for a gas generator set, which comprises a touch screen, a Venturi tube mixer, a turbosuperchager, an intercooler, a throttle valve, an engine, a rotating speed sensor, an generator, an intake manifold and a mixture gas absolute pressure / temperature measurement module, wherein one end of the Venturi tube mixer is respectively connected with the gas pressure difference / absolute pressure / temperature measurement module, a gas rapid control valve, an air-fuel ratio controller and the touch screen in sequence; the other end of the Venturi tube mixer is connected with the turbosuperchager, the intercooler, the throttle valve, the intake manifold, the engine, the rotating speed sensor and the engine in sequence; the gas rapid control valve and the gas pressure difference / absolute pressure / temperature measurement module are connected with the air-fuel ratio controller and the touch screen in sequence; the intake manifold is connected with the air-fuel ratio controller and the touch screen in sequence; and the air-fuel ratio of the engine is automatically adjusted rapidly according to the difference value of practical mass flow and theoretical mass flow of a mixture gas in the engine.

Description

Technical field: [0001] The invention relates to a method and equipment for automatically adjusting the air-fuel ratio of a gas-fired generator set, in particular to a rapid automatic adjustment system for the air-fuel ratio of a gas-fired generator set that can adapt to changes in gas pressure and concentration. technical background [0002] At present, the air-fuel ratio control method used in gas generator sets is mainly manual control or control according to the engine cylinder temperature, which plays a role in the control of the engine, but it has the following shortcomings or deficiencies: ①The automation level is low, and a considerable part of the control system It is still controlled manually; ②The air-fuel ratio control accuracy is poor, and the operating efficiency of the generator set is low; ③The system cannot be automatically adjusted according to the gas pressure and concentration, which requires high pressure stability of the gas, and the generator set is dif...

AI Technical Summary

Problems solved by technology

[0002] At present, the air-fuel ratio control method used in gas generator sets is mainly manual control or control according to the engine cylinder temperature, which plays a role in the control of the engine, but it has the following shortcomings or deficiencies: ①The automation level is low, and a considerable part of the control system It is still manual control; ②The air-fuel ratio control accuracy is poor, and the operating efficiency of the generator set is low; ③The system cannot be automatically adjusted according to the gas pressure and concentration, and the pressure stability of the gas is high, and the generator set is difficult to start, and the stability is poor

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