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Air atomization nozzle of double-oil-path and double-rotational-flow structure

An air atomization and double-swirl technology, applied in combustion methods, combustion chambers, combustion equipment, etc., can solve the problems of poor fuel atomization quality, small fuel pressure difference, low combustion efficiency of combustion chamber, etc., to improve fuel speed , reduce emissions and improve combustion efficiency

Pending Publication Date: 2019-05-31
中国船舶重工集团公司第七0三研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the existing air atomization nozzle technology, generally it is a nozzle with a single oil circuit structure. The combustion efficiency of the chamber is low; furthermore, an air atomizing nozzle with double oil circuit and double swirl structure is provided

Method used

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  • Air atomization nozzle of double-oil-path and double-rotational-flow structure

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Embodiment Construction

[0029] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments:

[0030] Such as figure 2 , image 3 and Figure 8 As shown, the air atomizing nozzle includes a primary cyclone 1, a secondary cyclone 3, a flow sleeve 5 and a nozzle body 7, and the primary cyclone 1 and the secondary cyclone 3 are axial Cyclone, the primary cyclone 1 is fixedly installed in the inlet of the nozzle body 7 (that is, the upstream position of the nozzle body), and the secondary cyclone 3 is set on the nozzle end of the nozzle body 7 (that is, the downstream position of the nozzle body) ;

[0031] Such as figure 2 , image 3 and Figure 7 As shown, the diversion sleeve 5 is a sleeve with openings at both ends, one end of the diversion sleeve 5 is sleeved on the outside of the secondary cyclone 3, and the other end of the diversion sleeve 5 is bent inwards and placed in a On the outside of th...

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Abstract

The invention discloses an air atomization nozzle of a double-oil-path and double-rotational-flow structure, and relates to the field of heat energy and power engineering equipment. An existing nozzleis a single-oil-path nozzle, and under the situation that the fuel flow is low, the fuel pressure difference is low, and the combustion chamber efficiency is low. The air atomization nozzle comprisesa first-level whirlcone, a second-level whirlcone and a nozzle body, wherein the first-level whirlcone is arranged in the nozzle body, the second-level whirlcone sleeves the spraying port end of thenozzle body, air sprayed out of the second-level whirlcone is subjected to flow guiding through a flow guiding sleeve, and the nozzle body is provided with a main oil path oil inlet pipe and an auxiliary oil path oil inlet pipe. A main oil path oil inlet hole, an annular main oil path oil inlet hole, an auxiliary oil path oil inlet hole, an arc auxiliary oil path oil inlet hole, a main oil path oil spraying hole and an auxiliary oil path oil spraying hole are formed in the nozzle body, the main oil path oil inlet pipe, the main oil path oil inlet hole, the annular main oil path oil inlet holeand the main oil path oil spraying hole are connected and are in communication, and the auxiliary oil path oil inlet pipe, the auxiliary oil path oil inlet hole, the arc auxiliary oil path oil inlet hole and the auxiliary oil path oil spraying hole are connected and are in communication. The air atomization nozzle is used for gas turbine liquid fuel atomization.

Description

technical field [0001] The invention belongs to the field of thermal energy and power engineering equipment, and in particular relates to an air atomizing nozzle with a double oil circuit and double swirl flow structure. Background technique [0002] The demand for industrial gas turbines to reduce the emissions of pollutants NOx and CO has gradually increased to a non-negligible or even very important level with the enhancement of human environmental protection awareness; In all technologies, factors such as the atomization quality of liquid fuel and the mixing quality of fuel and air have a great impact on the combustion chamber. The temperature of the outlet gas and the emission of pollutants play an important role. Therefore, the higher the degree of atomization of the liquid fuel and the more uniform the mixing with the air, the more fully the fuel burns, the lower the emission of pollutants at the outlet of the combustion chamber, and the higher the temperature of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/38
Inventor 师蓓蓓李雅军曹天泽刘超逸王俊
Owner 中国船舶重工集团公司第七0三研究所
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