Gas engine for realizing rapid power response by utilizing electronic fuel injection

Abstract

The invention discloses a gas engine for realizing rapid power response by utilizing electronic fuel injection. The gas engine can effectively solve the problem of insufficient power response of a natural gas engine by adopting a high-pressure electronic fuel injection technology. The problem of fuel transient supply is solved by using the electronic injection technology, meanwhile, the supply ofa combustion improver is ensured by using a supercharging backflow technology, the supply of natural gas fuel under the special working condition of sudden load rise is ensured to be sufficient, and anatural gas mixed combustion mode is prevented from being knocking and misfiring states by adjusting the supply amount of the combustion improver. Besides the supply and control of the fuel and the combustion improver, effective prediction and pre-control are carried out on the power demand signal of the sudden rise, and the timeliness and effectiveness of the response are guaranteed. By means ofa fuel emergency cut-off device, major accident sources such as engine overspeed and the like when load demand signals are disturbed are prevented and controlled, and major accidents are avoided.

Description

Technical field [0001] The invention relates to the field of electronic technology, and in particular to a gas engine that uses electronic fuel injection to achieve rapid power response. Background technique [0002] At present, in the field of oilfield drilling, the main power supply mode is that diesel engines directly drive drilling rigs through chain transmission, or use diesel engines to generate electricity and then use electric drive drilling rigs. There are two major problems with diesel drilling. One is poor economy. 50% of the drilling cost comes from The cost of diesel fuel is poor environmental protection, and diesel engines emit high particulate matter (PM2.5 and PM10). Therefore, if natural gas can be used as a drilling power fuel, it is economical and environmentally friendly to replace diesel to provide the main and auxiliary power for drilling. According to the data of more than 1,000 wells that have been drilled with natural gas fuel, it is generally 1kg (about...

AI Technical Summary

Problems solved by technology

However, in the natural gas engine system, natural gas and fuel are first mixed and then burned. The ratio of natural gas and oxygen must be controlled within a certain range. If only natural gas is added to the combustion chamber for a short period of time, the combustion environment will be destroyed, and deflagration, misfire, etc. will occur and cannot work normally. Work

[0007] 3. Unstable operating conditions will result in reduced reliability, increased maintenance, and reduced service life. The equipment cannot meet the long-term operation requirements of drilling conditions.

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