Composite atomization fuel nozzle structure

Abstract

The utility model provides a composite atomization fuel oil nozzle structure which comprises an inner pipe, an air inlet is formed in one end of the inner pipe, a nozzle assembly is installed at the other end of the inner pipe, an oil inlet is formed in the side, close to the air inlet, of the side portion of the inner pipe, an outer pipe is arranged outside the inner pipe in a sleeved mode, and an adjusting assembly is arranged between the outer pipe and the inner pipe. The outer pipe is provided with a flow dividing flow channel, and the flow dividing flow channel is communicated with the nozzle assembly and the inner pipe. Fuel oil and high-pressure gas have two branches after being mixed, one branch can be directly atomized and exhausted, the other branch can be exhausted after being atomized through the flow dividing flow channel, the atomization form can be adjusted according to requirements, accordingly, composite atomization is achieved, and the atomization effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of nozzles, and in particular to a composite atomizing fuel nozzle structure. Background Technology

[0002] Currently, there are three types of fuel nozzles used in ground verification tests of aero-engines: pressure atomizing nozzles, air atomizing nozzles, and evaporator-type nozzles. Almost all nozzles are derived from the principles of the above nozzles, but existing fuel nozzles often only have one atomization method, and the atomization effect needs to be improved.

[0003] Therefore, there is an urgent need for a composite atomizing fuel nozzle structure that can solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a composite atomizing fuel nozzle structure to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a composite atomizing fuel nozzle structure, including an inner tube, an air inlet at one end of the inner tube, a nozzle assembly at the other end, an oil inlet on the side of the inner tube near the air inlet, an outer tube sleeved on the outside of the inner tube, an adjustment assembly between the outer tube and the inner tube, and a flow divider channel on the outer tube, which is connected to the nozzle assembly and the inner tube respectively.

[0007] Preferably, both the air inlet and the oil inlet are equipped with quick connectors.

[0008] Preferably, the nozzle assembly includes a mounting cap, a main nozzle is provided in the middle of the mounting cap, the main nozzle is connected to the inner tube, an atomizing mesh is provided on the main nozzle, an auxiliary nozzle is provided around the main nozzle, the auxiliary nozzle is connected to the flow channel, and a swirl vane is provided on the auxiliary nozzle.

[0009] Preferably, the mounting cap is connected to the outer tube via a flange, and a sealing ring is provided between the mounting cap and both the inner tube and the outer tube.

[0010] Preferably, the adjustment assembly includes a fixed cone ring seat and an adjusting cone ring seat, forming an adjustment cavity between them. The adjustment cavity is connected to the flow channel. The fixed cone ring seat is installed between the outer tube and the inner tube and is located near the nozzle assembly. The adjusting cone ring seat is slidably installed between the outer tube and the inner tube and is located near the air inlet and is connected to the adjustment rod.

[0011] Preferably, both the fixed cone ring seat and the adjusting cone ring seat are provided with sealing rings.

[0012] Preferably, the inner tube has oil passage holes arranged side by side on its sidewall, and the oil passage holes are connected to the regulating cavity.

[0013] The present invention achieves the following beneficial technical effects compared to the prior art:

[0014] This utility model provides a composite atomizing fuel nozzle structure, including an inner tube with an air inlet at one end and a nozzle assembly at the other end. An oil inlet is located on the side of the inner tube near the air inlet. An outer tube is fitted around the inner tube, and an adjustment assembly is provided between the outer tube and the inner tube. The outer tube has a flow divider channel, which is connected to both the nozzle assembly and the inner tube. After the fuel and high-pressure gas are mixed, they have two separate paths: one path can be directly atomized and discharged, and the other path can be atomized through the flow divider channel and then discharged. The atomization pattern can be adjusted according to requirements to achieve composite atomization, which is beneficial for improving the atomization effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of a composite atomizing fuel nozzle structure provided by this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The purpose of this invention is to provide a composite atomizing fuel nozzle structure to solve the problems existing in the prior art.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1:

[0021] This embodiment provides a composite atomizing fuel nozzle structure, such as Figure 1As shown, it includes an inner tube 1, one end of which is provided with an air inlet 2, and the other end is provided with a nozzle assembly 3. An oil inlet 4 is provided on the side of the inner tube 1 near the air inlet 2. An outer tube 5 is sleeved on the outside of the inner tube 1. An adjustment assembly 6 is provided between the outer tube 5 and the inner tube 1. The outer tube 5 is provided with a flow divider 51, which is connected to the nozzle assembly 3 and the inner tube 1 respectively.

[0022] As one implementation method, both the air inlet 2 and the oil inlet 4 are equipped with quick connectors, which facilitates quick and stable connection.

[0023] In one embodiment, the nozzle assembly 3 includes a mounting cap 31, a main nozzle 32 is provided in the middle of the mounting cap 31, the main nozzle 32 is connected to the inner tube 1, an atomizing mesh 33 is provided on the main nozzle 32, an auxiliary nozzle 34 is provided around the main nozzle 32, the auxiliary nozzle 34 is connected to the flow divider 51, and a swirl vane 35 is provided on the auxiliary nozzle 34. Fuel can achieve direct atomization through the main nozzle 32 and swirl atomization through the auxiliary nozzle 34, thereby improving the atomization effect.

[0024] In one implementation, the mounting cap 31 is connected to the outer tube 5 via a flange, and a sealing ring is provided between the mounting cap 31 and both the inner tube 1 and the outer tube 5.

[0025] In one embodiment, the adjustment assembly 6 includes a fixed cone ring seat 61 and an adjustment cone ring seat 62, which form an adjustment cavity 63. The adjustment cavity 63 is connected to the diversion channel 51. The fixed cone ring seat 61 is installed between the outer tube 5 and the inner tube 1 and is located near the nozzle assembly 3. The adjustment cone ring seat 62 is slidably installed between the outer tube 5 and the inner tube 1 and is located near the air inlet 2, and is connected to the adjustment rod 64.

[0026] In one embodiment, both the fixed cone ring seat 61 and the adjusting cone ring seat 62 are provided with sealing rings.

[0027] In one embodiment, oil passage holes 11 are provided side by side on the side wall of the inner tube 5, and the oil passage holes 11 are connected to the regulating cavity 63.

[0028] This utility model provides a composite atomizing fuel nozzle structure. After the fuel and high-pressure gas are mixed, there are two channels. One channel can be directly atomized and discharged, and the other channel can be atomized and discharged after passing through a split flow channel. The atomization mode can be adjusted according to the needs, thereby achieving composite atomization and improving the atomization effect.

[0029] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A composite atomizing fuel nozzle structure, characterized in that: The device includes an inner tube, one end of which has an air inlet and the other end of which is equipped with a nozzle assembly. An oil inlet is provided on the side of the inner tube near the air inlet. An outer tube is fitted over the inner tube. An adjustment assembly is provided between the outer tube and the inner tube. The outer tube is provided with a flow divider channel, which is connected to the nozzle assembly and the inner tube respectively.

2. The composite atomizing fuel nozzle structure according to claim 1, characterized in that: Both the air inlet and the oil inlet are equipped with quick connectors.

3. The composite atomizing fuel nozzle structure according to claim 1, characterized in that: The nozzle assembly includes a mounting cap, a main nozzle is provided in the center of the mounting cap, the main nozzle is connected to the inner tube, an atomizing mesh is provided on the main nozzle, an auxiliary nozzle is provided around the main nozzle, the auxiliary nozzle is connected to the flow channel, and a swirl vane is provided on the auxiliary nozzle.

4. The composite atomizing fuel nozzle structure according to claim 3, characterized in that: The mounting cap is connected to the outer tube via a flange, and a sealing ring is provided between the mounting cap and both the inner tube and the outer tube.

5. The composite atomizing fuel nozzle structure according to claim 1, characterized in that: The adjustment assembly includes a fixed cone ring seat and an adjusting cone ring seat, which form an adjustment cavity. The adjustment cavity is connected to the flow channel. The fixed cone ring seat is installed between the outer tube and the inner tube and is located near the nozzle assembly. The adjusting cone ring seat is slidably installed between the outer tube and the inner tube and is located near the air inlet and is connected to the adjustment rod.

6. The composite atomizing fuel nozzle structure according to claim 5, characterized in that: Both the fixed cone ring seat and the adjusting cone ring seat are equipped with sealing rings.

7. The composite atomizing fuel nozzle structure according to claim 5, characterized in that: The inner tube has oil passage holes arranged side by side on its sidewalls, and the oil passage holes are connected to the regulating cavity.

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