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A dual fuel nozzle with dual oil passages and single nozzle

A single-nozzle, dual-fuel technology, applied in combustion chambers, combustion methods, combustion equipment, etc., can solve the problem of easy carbon deposition at the nozzle of the main oil circuit, achieve good atomization effect, improve combustion efficiency, and increase fuel injection flow Effect

Active Publication Date: 2022-04-08
中国船舶重工集团公司第七0三研究所
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Problems solved by technology

[0003] The purpose of the present invention is to provide a seamless switch between gaseous and liquid fuels under any working conditions, and to achieve good atomization effect of liquid fuels under both low and high working conditions, which solves the problem of the previous dual oil circuit and double nozzle nozzles. A dual-fuel nozzle with dual oil circuits and single nozzles that is prone to carbon deposits at the nozzle of the main oil circuit

Method used

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  • A dual fuel nozzle with dual oil passages and single nozzle
  • A dual fuel nozzle with dual oil passages and single nozzle
  • A dual fuel nozzle with dual oil passages and single nozzle

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Embodiment Construction

[0028] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0029] combine Figure 1-7 , the present invention is a dual fuel nozzle with dual oil circuit and single nozzle, which mainly includes main oil circuit connector 1, auxiliary oil circuit connector 21, gaseous fuel connector 24, nozzle housing 8, check valve 5, main oil circuit swirl Atomization assembly, auxiliary oil circuit swirl atomization assembly, carbon deposition prevention air cooling assembly 27, gaseous fuel nozzle 19, detachable compression and fixing assembly; said main oil circuit joint 1 and auxiliary oil circuit joint 21 are installed with fuel oil The filter 3 and the stop ring 2; the check valve 5 structurally includes a plug cover 4, a gasket 6, a valve body 43, a ball seat 40, a check valve spring 41, and a check valve block 42; the main The oil circuit swirl atomization assembly includes the main oil circuit swirler 17, the main fuel flow ch...

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Abstract

The object of the present invention is to provide a dual fuel nozzle with dual oil paths and single nozzles, which includes a nozzle housing, a main oil path swirl atomization assembly, an auxiliary oil path swirl atomization assembly, and a gaseous fuel nozzle; the main oil path swirl atomization assembly The atomization assembly includes the main oil circuit swirler, the main fuel flow channel, the main oil circuit pre-swirl chamber, the swirl chamber, and the fuel nozzle; the auxiliary oil circuit swirl atomization assembly includes the auxiliary oil circuit swirler, the auxiliary fuel flow channel , swirl chamber, and fuel nozzle; the invention can realize the undisturbed online switching of gaseous fuel and liquid fuel without stopping the machine; the design of double oil circuit ensures the good fuel atomization effect before the idle condition, and the idle condition In the future, the fuel injection flow rate can be greatly increased without greatly increasing the fuel supply pressure; the design of the anti-carbon deposition air cooling component and the common nozzle of the main and auxiliary oil circuits can effectively prevent carbon deposition at the nozzle; the structural design of the auxiliary fuel flow channel surrounding the main fuel flow channel is effective The problem of thermal coking of the residual oil in the main fuel flow channel is avoided.

Description

technical field [0001] The invention relates to a nozzle, in particular to a fuel nozzle of a gas turbine. Background technique [0002] As my country's demand for oil is increasing, my country's exploration and exploitation of marine crude oil is increasing. This puts forward higher and higher requirements for offshore oil extraction technology. In the process of crude oil extraction, a large amount of oil-associated gas is often obtained. At the beginning of exploitation, these oil-associated gases were directly burned as waste gas, which caused a lot of waste of resources. As a power equipment with small size and high power, the dual-fuel gas turbine can use conventional liquid fuel before the associated gas is extracted, and switch to gaseous fuel after the extraction is successful. waste of resources. Dual-fuel nozzle is the core component of dual-fuel gas turbine, and the performance of its components directly affects the performance of the whole machine. The most...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/36F23R3/38
CPCF23R3/36F23R3/38
Inventor 程旭李雅军张国强齐秀龙张晨曦王俊曹天泽冉军辉
Owner 中国船舶重工集团公司第七0三研究所
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