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Single-inlet double-oil-way composite atomizing nozzle

An atomizing nozzle and dual oil circuit technology, applied in combustion methods, lighting and heating equipment, continuous combustion chambers, etc., can solve problems such as increased oil leakage risk, increased assembly difficulty, and deteriorating combustion performance, and increased complexity. , The assembly difficulty is low, the effect of simplifying the structure

Active Publication Date: 2022-05-24
成都中科翼能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to meet the wider flow range of the combustion chamber, dual-oil centrifugal nozzles are generally used, which not only ensures the atomization quality of small flow rates, but also meets the requirements of large flow rates under the limitation of oil supply pressure. The structure of the road nozzle complicates the layout of the main pipe, increases the weight of the structure, increases the difficulty of assembly and increases the risk of oil leakage
At the same time, in order to improve the performance of the gas turbine, the boosting ratio of the compressor is increased, which increases the temperature at the inlet of the combustion chamber. risk of component damage

Method used

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  • Single-inlet double-oil-way composite atomizing nozzle
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  • Single-inlet double-oil-way composite atomizing nozzle

Examples

Experimental program
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Effect test

Embodiment 1

[0033] like Figure 1 to Figure 4 As shown, this embodiment designs a single-inlet dual-oil path compound atomizing nozzle, which is used to simplify the combustion chamber structure and avoid the dual fuel supply required by conventional dual-oil path nozzles under the condition of satisfying more fuel supply. pipeline. At present, with the increase in the power demand of gas turbines, the combustion chamber of the gas turbine often requires a wider flow of fuel injection combustion. In order to meet this requirement, the common idea in the prior art is to use a dual-oil path centrifugal nozzle. This nozzle It not only ensures the atomization quality of small flow, but also meets the requirements of large flow under the limitation of oil supply pressure; however, conventional dual oil circuit nozzles often use dual oil supply pipelines to supply oil to the two oil circuits in the nozzle respectively. , the dual oil supply channels will occupy more space, limit the installati...

Embodiment 2

[0041] like Figure 1 to Figure 4 As shown, on the basis of the structure of the first embodiment, in order to reduce the solid particle impurities in the fuel oil in the oil supply channel from entering the atomizing nozzle, the oil filter 7 is provided in the oil inlet nozzle 101 in this embodiment.

[0042] like figure 2 , image 3 As shown in the figure, the oil inlet nozzle 101 is vertically connected to the side wall of the oil inlet end of the nozzle rod body 1. The oil inlet nozzle 101 has a filter cavity 107, and an oil filter 7 is installed in the filter cavity 107. The oil filter 7 includes a pipe sleeve shape and one end of which is blocked. The pipe wall of the oil filter 7 is provided with an oil inlet hole 701 and a filter screen 702. The fuel can enter from the outside of the oil filter 7 through the oil inlet hole 701. inside, and in the process achieves fuel filtration.

[0043] A collar 703 for preventing the oil filter 7 from sliding out is provided at ...

Embodiment 3

[0045] like figure 1 and Figure 5-Figure 8 As shown, this embodiment designs a single-inlet dual-oil path composite atomizing nozzle, which is used to improve the atomization quality and particle size distribution of the nozzle and achieve the thermal protection requirements of the nozzle. At present, in order to improve the performance of the gas turbine, the boosting ratio of the compressor is often increased, which indirectly increases the inlet temperature of the combustion chamber. When the nozzle is in a high-temperature working environment for a long time, coking and carbon deposition are prone to occur, which deteriorates the combustion performance. Increased risk of component damage. In addition, in order to further improve the performance of the combustion chamber, it is necessary to ensure a reasonable air flow structure and good atomization in the combustion chamber, as well as proper oil and gas matching, especially when the fuel with higher viscosity is used. T...

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Abstract

The invention belongs to the technical field of atomization oil nozzles of gas turbines, and particularly relates to a single-inlet double-oil-way composite atomization nozzle which comprises a nozzle rod body and a cap cover. The nozzle rod body comprises an inner sleeve and an outer sleeve; an auxiliary oil way channel is arranged in the inner sleeve; a gap between the inner sleeve and the outer sleeve forms a main oil path channel; the cap cover is connected to the oil outlet end of the nozzle rod body in a sleeving mode. An air inlet hole, a central hole and a beveled hole are formed in the cap cover; the multiple beveled holes enable air to flow in a rotary annular mode, auxiliary atomization is carried out on fuel oil, and the fuel oil atomization quality is improved. A single oil supply channel is adopted to supply oil to the atomizing nozzle, so that the assembly difficulty is lower, meanwhile, the combustion chamber structure can be simplified, and the weight of the combustion chamber structure can be reduced; a built-in air heat insulation screen and the mutual cooling scheme design of the main oil way channel and the auxiliary oil way channel are adopted, and the problems that in the working process of the combustion chamber, a nozzle is in a high-temperature working environment for a long time, and coking and carbon deposition occur are solved.

Description

technical field [0001] The invention belongs to the technical field of atomizing fuel injection nozzles for gas turbines, and particularly relates to a single-inlet dual-oil path compound atomizing nozzle. Background technique [0002] The nozzle is the core component that realizes the function of the combustion chamber components. Its working performance has a direct impact on the performance of the combustion chamber, which is related to the reliable ignition and stable operation of the combustion chamber. At present, in order to meet the wider flow range of the combustion chamber, dual-oil centrifugal nozzles are generally used, which not only ensures the atomization quality of small flow, but also meets the requirements of large flow under the limitation of oil supply pressure. The structure of the road nozzle complicates the layout of the main pipe, increases the weight of the structure, increases the difficulty of assembly and increases the risk of oil leakage. At the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/28F23R3/30F23R3/38
CPCF23R3/283F23R3/286F23R3/30F23R3/38
Inventor 王龙王鸣刘宝琪范珍涔王少波颜腾冲陈柳君代茂林王梁丞杨治刘印
Owner 成都中科翼能科技有限公司
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