Integrated burner with back step precombustion stage and V-groove main combustion stage

Abstract

An integrated burner with a back step precombustion stage and a V-groove main combustion stage consists of a precombustion stage and a main combustion stage, wherein the precombustion stage adopts a low-speed recirculation region produced by a back step flame holder to stabilize the flame, stable flame jet is produced at a high position of a combustion channel, and the high-temperature flame jet is propagated to a low position by using the rotating centrifugal force of a rotary engine, thereby igniting fuels of the main combustion stage arranged at the low position and providing stable ignition source for the main combustion stage; and the main combustion stage adopts a multipoint direct-injection type oil injection method, and a V-groove is added in front of the igniting to stabilize the main combustion stage so as to lead the main combustion stage to have excellent flame stability and crossed flame reliability. The integrated burner can provide stable high-position combustion source and excellent low-position combustion efficiency for a combustion system of the rotary engine, and ensures the whole combustion system to have wide and stable working range and high-efficient combustion. The integrated design ensures simple and compact structure as well as saving the weight, and provides convenience for the future application.

Description

technical field [0001] The invention relates to a combustion device suitable for a rotary engine, in particular to an integrated burner with a rear stepped pre-combustion stage and a V-groove main combustion stage. Background technique [0002] Foreign countries have developed a new concept engine-ramjet rotor engine integrating ramjet engine technology and gas turbine engine technology. This kind of engine can be divided into two categories: one type of ram rotor engine uses ram rotor to compress air, followed by combustion chamber and turbine for combustion and work; the other type is to realize gas compression, combustion and expansion work on one rotor . Ramgen Corporation of the United States has conducted research and operational tests on both types of ram rotor engines, and its main purpose is to apply ram rotor engines to provide power for industrial gas turbines, and both use gaseous fuels. [0003] Especially the second type of ramjet rotor engine, which is to in...

AI Technical Summary

Problems solved by technology

[0007] The combustion of two-phase liquid mist in the existing rotary engine or the combustion chamber with centrifugal force has not yet provided a stable and efficient combustion scheme in a wide range of work, and some of them are only for gaseous fuels or for two-phase liquid The combustion of fog only provides a stable ignition source, and cannot be applied to an engine that actually has a wide operating range, especially to achieve stable work and high work efficiency in each working state of the engine, and because the rotary engine The influence of the unique centrifugal force field The distribution of the outlet temperature field is also a technical problem

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