CN219510844U - Novel gasification precombustion nozzle of structure - Google Patents
Novel gasification precombustion nozzle of structure Download PDFInfo
- Publication number
- CN219510844U CN219510844U CN202320945039.5U CN202320945039U CN219510844U CN 219510844 U CN219510844 U CN 219510844U CN 202320945039 U CN202320945039 U CN 202320945039U CN 219510844 U CN219510844 U CN 219510844U
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- Prior art keywords
- nozzle
- precombustion
- combustion chamber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The utility model discloses a gasification precombustion nozzle with a novel structure, and relates to the technical field of fuel nozzles of aeroengines. According to the utility model, through the arrangement of the swirler and the tail end of the fuel nozzle, the fuel injected from the tail end of the fuel nozzle and the high-pressure swirling gas at the outlet of the swirler are premixed at the outlet of the precombustion nozzle assembly to form premixed atomized oil mist, and then the premixed oil-gas mixture enters the combustion chamber to participate in combustion, so that the reliability of ignition and the uniformity of the temperature of the outlet of the combustion chamber are ensured, and the service life of the combustion chamber is prolonged.
Description
Technical Field
The utility model relates to the technical field of aero-engine fuel nozzles, in particular to a gasification precombustion nozzle with a novel structure.
Background
Gasification pre-combustion nozzles are a component of a burner and are commonly used in the heating and smelting processes in the industry. It can gasify liquid fuel and gas at high temperature and high pressure after mixing, and simultaneously pre-burn them, so that it can burn more completely and more effectively in the combustion chamber.
In the prior art, as disclosed in chinese patent CN217761155U, an internal combustion engine pre-combustion chamber nozzle is provided with a central axis, the internal combustion engine pre-combustion chamber nozzle is provided with a plurality of main spray holes circumferentially arranged around the central axis, the cross section of the main spray holes in the radial direction of the internal combustion engine pre-combustion chamber nozzle is set as a hole cross section, and the hole cross section is in a strip-shaped hole structure.
But in the prior art, aiming at the gasification precombustion nozzle atomization structure of the aero-engine, the traditional nozzle atomization structure has poor atomization quality, carbon deposit is easy to form, and the circumference of the fuel is uneven, so that the service life of a combustion chamber is reduced.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, aiming at the gasification precombustion nozzle atomization structure of an aeroengine, the traditional nozzle atomization structure is poor in atomization quality, carbon deposit is easy to form and the circumferential direction of fuel oil is uneven, and provides a gasification precombustion nozzle with a novel structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a novel gasification precombustion nozzle of structure, includes precombustion branch pipe, precombustion branch pipe's output fixed mounting has the fuel nozzle end, the terminal lateral wall threaded connection of fuel nozzle has the swirler.
Preferably, a gasket is placed on one side of the interior of the precombustion manifold.
Compared with the prior art, the utility model has the advantages and positive effects that:
1. according to the utility model, through the arrangement of the swirler and the tail end of the fuel nozzle, the fuel injected from the tail end of the fuel nozzle and the high-pressure swirling gas at the outlet of the swirler are premixed at the outlet of the precombustion nozzle assembly to form premixed atomized oil mist, and then the premixed oil-gas mixture enters the combustion chamber to participate in combustion, so that the reliability of ignition and the uniformity of the outlet temperature of the combustion chamber are ensured, and the service life of the combustion chamber is prolonged.
Drawings
FIG. 1 is a schematic cross-sectional view of a gasification precombustion nozzle with a novel structure according to the present utility model.
Legend description: 1. a precombustion manifold; 2. a cyclone; 3. a fuel nozzle tip; 4. a gasket.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
In embodiment 1, as shown in fig. 1, the utility model provides a gasification precombustion nozzle with a novel structure, which comprises a precombustion branch pipe 1, wherein the output end of the precombustion branch pipe 1 is fixedly provided with a fuel nozzle tail end 3, and the outer side wall of the fuel nozzle tail end 3 is in threaded connection with a cyclone 2.
In the following, the specific arrangement and action of the embodiment will be specifically described, by the arrangement of the swirler 2 and the fuel nozzle end 3, the fuel injected from the fuel nozzle end 3 and the high-pressure swirling gas at the outlet of the swirler 2 are premixed at the outlet of the precombustion nozzle assembly to form premixed atomized oil mist, and then the premixed oil-gas mixture enters the combustion chamber to participate in combustion. The ignition reliability and the outlet temperature uniformity of the combustion chamber are ensured, and the service life of the combustion chamber is prolonged, wherein the precombustion branch pipe 1 and the swirler 2 are uniformly distributed and fixed through three spot welding positions of the whole circle.
In example 2, as shown in fig. 1, a gasket 4 was placed on the inner side of the pre-combustion manifold 1.
The effect that its whole embodiment reached is, and fuel nozzle end 3 seals through gasket 4 in the precombustion branch pipe is inside, prevents that the precombustion nozzle can the oil leak when the oil spout, and oil can get into the combustion chamber, reduces the life-span of combustion chamber.
The application method and the working principle of the device are as follows: the fuel oil sprayed from the tail end 3 of the fuel spray nozzle and the high-pressure swirl gas at the outlet of the swirler 2 are premixed at the outlet of the precombustion nozzle assembly to form premixed atomized oil mist, and then the premixed oil-gas mixture enters the combustion chamber to participate in combustion. The ignition reliability and the uniform temperature of the outlet of the combustion chamber are ensured, the service life of the combustion chamber is prolonged, and the premixed oil-gas mixture enters the combustion area along with high-pressure gas.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (2)
1. The utility model provides a novel gasification precombustion nozzle of structure, includes precombustion branch pipe (1), its characterized in that: the fuel oil burner is characterized in that the output end of the precombustion branch pipe (1) is fixedly provided with a fuel oil nozzle tail end (3), and the outer side wall of the fuel oil nozzle tail end (3) is in threaded connection with a cyclone (2).
2. A novel structured gasification pre-combustion nozzle as claimed in claim 1, wherein: a gasket (4) is arranged at one side of the inner part of the precombustion branch pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945039.5U CN219510844U (en) | 2023-04-24 | 2023-04-24 | Novel gasification precombustion nozzle of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945039.5U CN219510844U (en) | 2023-04-24 | 2023-04-24 | Novel gasification precombustion nozzle of structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219510844U true CN219510844U (en) | 2023-08-11 |
Family
ID=87524352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320945039.5U Active CN219510844U (en) | 2023-04-24 | 2023-04-24 | Novel gasification precombustion nozzle of structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219510844U (en) |
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2023
- 2023-04-24 CN CN202320945039.5U patent/CN219510844U/en active Active
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