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Cyclone for nozzle

A swirler and nozzle technology, which is applied in the field of swirlers for nozzles, can solve the problems of affecting the stability of the combustion process, the poor uniformity of the atomization degree in the circumferential direction, the instability of the spray flow rate of the nozzle and the angle of the fog cone, etc., so as to save rare Metal resources, reduced erosion, good atomization effect

Pending Publication Date: 2019-11-08
西安成立航空制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The roughness of the swirl channel is low, and visual oil passages often appear during the performance debugging process, that is, the circumferential uniformity of the atomization degree is poor, and it takes a lot of manual work to grind the swirl channel more finely, but manual work The grinding effect is unmeasurable and uncontrollable due to human factors and other factors, resulting in poor consistency of grinding quality and obvious individual differences. The hardness of metal materials is lower than that of ceramic materials. Under long-term service, it is easy to change the size or even the structure of the flow channel. This situation is more obvious under high-pressure conditions, which will affect the injection flow rate of the nozzle and the instability of the mist cone angle, and affect the stability of the combustion process. Moreover, the swirler needs to be suitable Equipped with a special nozzle mechanism, the complex structure of the special nozzle for the cyclone on the market also affects the normal use of the cyclone

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1-4 As shown, when the material of the cyclone body 1 is a metal material, the hardness of the metal material is lower than that of the ceramic material. It is easy to change the size and even the structure of the swirl channel 2 during service. This situation is more obvious under high-pressure conditions, which will affect the injection flow rate of the nozzle 3 and the instability of the mist cone angle, which will affect the stability of the combustion process. The completed swirler body 1 replaces the application of the superalloy to the swirler in the conventional nozzle 3, saving rare metal resources.

Embodiment 2

[0026] Such as Figure 5 As shown, when the swirl channel 2 of the swirl body 1 is set perpendicular to the outer wall of the swirl body 1, compared with the situation where the swirl body 1 is composed of 6 grooves with a radial angle of 30° At the same time, the six swirl channels 2 are evenly distributed at an angle of 30° along the circumference, the cross-sectional area is 1.2mmX1mm, and the length along the flow direction is 4mm. The sprayed fluid atomization mist cone angle is fixed, and the injection flow rate is fixed, so that the fluid atomization effect is better.

Embodiment 3

[0028] Such as Figure 1-4As mentioned above, when the swirl channel 2 provided on the cyclone body 1 is polished manually, a series of abrasive pastes are used to finely grind the swirl channel 2 to achieve the highest smoothness and structural size consistency. The swirl channel 2 produced by grinding has a low roughness. In the process of performance debugging, visual oil passages often appear, that is, the circumferential uniformity of the atomization degree is poor, and it takes a lot of manual inspection of the swirl channel 2. Finer grinding, but the grinding effect of manual work is unpredictable and the consistency of grinding quality is poor due to uncontrollable human factors, and the individual differences are obvious. Now the present invention adopts advanced chemical grinding and laser processing technology to process a new type of high temperature resistant, resistant The wear-resistant and corrosion-resistant cyclone body 1 has a higher and more excellent proce...

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Abstract

The invention relates to the technical field of cyclones and discloses a cyclone for a nozzle. The cyclone comprises a cyclone body, six swirling flow channels, a nozzle and a spray tube. The cyclonebody is located in an inner cavity of the spray tube, the six swirling flow channels are uniformly arranged on the outer wall of the cyclone body, the nozzle is located on the right side face of the spray tube, the periphery of the outer wall of the cyclone body is in contact with the inner wall of the spray tube, the six swirling flow channels are obliquely arranged on the outer wall of the cyclone body, the left side of the nozzle is connected to the right side face of the spray tube, and spray holes penetrating from left to right are uniformly formed in the right side of the nozzle. By replacing a conventional metal cyclone with a ceramic cyclone to replace application of a high-temperature alloy to a conventional nozzle, rare metal resources are saved. As for the swirling flow channelsformed in the outer wall of the cyclone body, advanced chemical etching and grinding forming techniques are adopted. Compared with conventional manual operation grinding, the processing grade is higher and more excellent, and the processing precision is better and more controllable.

Description

technical field [0001] The invention relates to the technical field of cyclones, in particular to a cyclone for nozzles. Background technique [0002] The swirler for the nozzle is a part that the fluid is thrown to the inner wall of the nozzle due to the inertial centrifugal force through its swirling action under the pressure drive, and is gradually sprayed outward (flowing) while rotating. Compared with conventional parts, its structure is more complex and not easy to process, and it consumes a lot of kinetic energy during the working process, and it wears seriously under high pressure, so it is generally made of wear-resistant alloy and requires a certain smoothness index. At present, industrial high-temperature nozzles High-temperature alloy materials are mostly used in hydrocyclones, and traditional processing and forming technologies are used. Considering its harsh working environment, high-temperature alloys have become the best choice for processing materials. Afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/34
CPCB05B1/3415
Inventor 王盼盼马春力李虎平彭天瀚王通
Owner 西安成立航空制造有限公司
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