Method and device for mixing and burning water vapor in natural gas engine

Abstract

The invention discloses a method for blended burning steam in an engine, which includes a step for converting water into high-temperature steam and a step for spraying the high-temperature steam into a natural gas engine intake pipe or an intake passage. The invention also discloses a blended burning device in a natural gas engine, which includes steam box and a steam spraying device, wherein the steam box is communicated with a water inlet through a water inlet pipeline, and water flows into the steam box through the water inlet pipeline; the steam spraying device is arranged on the wall of the gas inlet pipeline of the engine and used for spraying the steam into the gas inlet pipeline; and the steam box is arranged on the exhaust pipe of the engine, the exhaust pipe penetrates the interior thereof, and the cooling water in the box is heated into high-temperature steam through the exhaust pipe and enters the steam spraying device through an outlet pipeline, so as to be sprayed into the gas inlet pipeline. As the cooling water of the engine is heated into steam and sprayed into the gas inlet pipe of the engine, the burning speed and temperature are optimized, the economy of the natural gas engine is improved, and the emission performance is improved.

Description

technical field [0001] The invention relates to the technical field of natural gas engines, in particular to a device and method for burning water vapor or aqueous solution steam in natural gas engines. Background technique [0002] With the rapid growth of the number of automobiles in my country, the demand for automobile fuel (mainly gasoline and diesel) is increasing, which makes my country's oil imports increase year by year. At present, oil imports have far exceeded domestic production, and the dependence on foreign oil is increasing year by year, and it is expected to reach more than 70% by 2020. In order to ensure my country's energy security, it is necessary to change the current energy consumption structure. my country is rich in natural gas resources. The total reserves of conventional natural gas are about 38 trillion cubic meters, accounting for about 11% of the world's total resources. At present, an annual production capacity of about 80 billion cubic meters ...

AI Technical Summary

Problems solved by technology

[0004] However, there are still two technical problems in natural gas engines: 1. The combustion speed of natural gas is slow, making CH 4 too late to burn completely, ch 4 High emission; 2. High combustion temperature of natural gas engine, NO x relatively high emissions

It is impossible to solve these two problems only by optimizing the structural design of the natural gas engine

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