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Flame tube for triple-scroll combustion in advanced low-pollution turbine engines

A turbine engine and flame tube technology, which is applied in the combustion chamber, combustion method, combustion equipment and other directions, can solve the problems of low compactness, reduced engine thrust-to-weight ratio, and large length and diameter of the flame tube.

Active Publication Date: 2019-01-15
BEIJING POWER MACHINERY INST
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Problems solved by technology

Therefore, the long-diameter ratio of the flame tube is relatively large, and the compactness is not high, which will easily increase the overall length of the engine and reduce the thrust-to-weight ratio of the engine.

Method used

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  • Flame tube for triple-scroll combustion in advanced low-pollution turbine engines
  • Flame tube for triple-scroll combustion in advanced low-pollution turbine engines
  • Flame tube for triple-scroll combustion in advanced low-pollution turbine engines

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Embodiment Construction

[0040] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] Domestic and foreign studies on low-pollution and low-emission turbine engine combustors have generally proved that the combustion structure with the characteristics of RQL (Rich / Quick Quenching / Lean (RQL) combustion technology) can effectively reduce the emission of combustion pollutants. Therefore, according to the combustion mechanism, this scheme designs a flame cylinder scheme with a C-shaped structure.

[0042]Thereby, the present invention provides a kind of flame cylinder that is applicable to the combustion of the three-scroll system organization of advanced low-pollution turbine engine, such as Figure 2-Figure 4 As shown, it includes: the combustion chamber inlet 1, the combustion chamber casing 2, th...

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Abstract

The invention belongs to the technical field of turbine engines, and particularly relates to a flame tube suitable for three-vortex-system structure combustion of an advanced low-pollution turbine engine. According to the flame tube, through reasonable design of jet holes, two large-scale vortex system structures are formed on the head of the flame tube and belong to the head region of the flame tube, and the vortex system dimension and the geometric dimension of the flame tube feature structure are made in the same order of magnitude. The inner wall and the end wall of the flame tube are connected together in a welded mode, and then can be fixed to an engine high-pressure turbine guider or casing by means of threaded connection. The outer wall of the flame tube is fixed to an engine casing through the threaded connection mode. According to the scheme, the combustion process has obvious RQL characteristics; and moreover, combustion efficiency can be effectively improved compared with a traditional baffling ignition flame tube, combustion polluting emission is reduced, and the structure is compact.

Description

technical field [0001] The invention belongs to the technical field of turbine engines, and in particular relates to a three-scroll system combustion flame cylinder suitable for advanced low-pollution turbine engines. Background technique [0002] The turbine engine is mainly composed of an air compression system, a combustion system, and an expansion power system. Such as figure 1 shown. The combustion system is generally called the combustion chamber, which is mainly composed of an atomizing device and a flame tube. The role of the flame tube is to ensure that the air at the outlet of the compression system is fully mixed with the fuel and chemical energy is generated to convert the chemical energy of the fuel into heat energy. The baffled flame tube structure is one of the flame tube structure types. [0003] Such as figure 1 As shown, the existing annular baffle flame tube and the sleeve 5, the oil thrower 3, the casing 2, etc. constitute the combustion chamber, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/58F23R3/42
CPCF23R3/42F23R3/58
Inventor 蔡文哲杨凯陈素荣赵学成王大磊
Owner BEIJING POWER MACHINERY INST
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