Atomizing nozzle

Abstract

The utility model relates to atomizing nozzle, including casing and cyclone core, the inside of casing is equipped with internal thread, the outside of cyclone core is equipped with external thread, the casing with cyclone core between passes through thread connection, the bottom of casing is equipped with conical flow port, the top ring part of cyclone core is equipped with conical part, and the both sides of conical part are equipped with flow port, the bottom of cyclone core is equipped with annular flow port, the utility model discloses the setting of casing conical part, aperture length and the adjustment of cyclone core bottom flow angle, improved the stability and uniformity of atomization effect, simultaneously, the spray head can work normally under 1200 DEG C high temperature, adopts the threaded connection mode to strengthen the structure stability, supports the wide pressure range (small flow under good atomization state, the highest pressure resistance 10MPa inside, small, the processing difficulty is big, ) of 0.13kPa to 2000kPa, is applicable to aviation kerosene and aviation diesel fuel and so on, satisfies the actual demand of small turbojet engine ignition, combustion and so on field, improves the overall combustion efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of turbojet engines, specifically to an atomizing nozzle. Background Technology

[0002] In the prior art, atomizing nozzles are widely used in turbojet engines and other fields to atomize fuels such as aviation kerosene or aviation diesel into fine particles to achieve efficient combustion. A typical atomizing nozzle usually includes components such as a housing and a swirl core. The fuel is driven to flow by pressure and forms an atomized cone spray at the nozzle outlet. Existing designs mostly rely on high pressure and flow rate to maintain the atomization effect, such as achieving a wide atomization angle (usually 60°-100°) under medium or high pressure, and controlling the fuel path through a simple flow guiding structure.

[0003] Existing technologies have some drawbacks in use. For example, under low pressure (e.g., 0.13 kPa) and low flow rate (e.g., 1 L / h) conditions, the atomization effect decreases significantly, and it is impossible to stably achieve an opening of ∠60-100°, resulting in uneven atomized particles and low combustion efficiency. At the same time, existing atomizing nozzles have insufficient durability in high-temperature environments, their simple structural connection methods are easily loosened by thermal expansion, and the opening and orifice settings of the guide port cannot adapt to a wide range of working intensities, limiting their application in high-demand scenarios such as aero-engines. Therefore, we propose an atomizing nozzle. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide an atomizing nozzle to solve the problem that under low pressure (e.g., 0.13 kPa) and low flow rate (e.g., 1 L / h) conditions, the atomization effect is significantly reduced, and it is impossible to stably achieve an opening of ∠60-100°, resulting in uneven atomized particles and low combustion efficiency. At the same time, existing atomizing nozzles have insufficient durability under high-temperature environments, simple structural connection methods, and are easily loosened by thermal expansion. Furthermore, the opening and orifice settings of the guide port cannot adapt to a wide range of working intensities, limiting their application in high-demand scenarios such as aero-engines.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: an atomizing nozzle is designed, including a housing and a swirling core. The housing is provided with an internal thread, and the swirling core is provided with an external thread. The housing and the swirling core are connected by threads. A conical guide port is provided at the bottom of the housing. The top annular part of the swirling core is provided with a conical part, and guide ports are provided on both sides of the conical part. An annular guide port is provided at the bottom of the swirling core.

[0006] Preferably, the fuel flows downward along the flat surface from the two guide ports on both sides.

[0007] Preferably, the conical guide port at the bottom of the housing is positioned opposite to the annular guide port at the bottom of the swirl core to form a fuel outlet path.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. This utility model improves the stability and uniformity of atomization effect by setting the cone part of the shell, adjusting the orifice length and the bottom guide angle of the swirl core. At the same time, the nozzle can work normally at a high temperature of 1200℃. The threaded connection method enhances structural stability and supports a wide pressure range from 0.13kPa to 2000kPa. It is suitable for fuels such as aviation kerosene and aviation diesel, meets the actual needs of turbojet engines and other fields, and improves the overall combustion efficiency and reliability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0012] Figure 3 This is a schematic diagram of the swirl core structure of this utility model.

[0013] In the figure: 1. Shell; 101. Conical guide port; 2. Swirl core; 201. Annular guide port; 202. Guide port; 203. External thread; 204. Conical part. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Example 1: Atomizing nozzle, see Figures 1 to 3 The device includes a housing 1 and a vortex core 2. The housing 1 has an internal thread, and the vortex core 2 has an external thread 203. The housing 1 and the vortex core 2 are connected by threads. The bottom of the housing 1 has a tapered guide port 101. The top annular part of the vortex core 2 has a tapered part 204, and the tapered part 204 has guide ports 202 on both sides. The bottom of the vortex core 2 has an annular guide port 201.

[0016] Under low pressure (e.g., 0.13 kPa) and low flow rate (e.g., 1 L / h), the guide angle of the swirl core 2 and the conical structure of the shell 1 ensure that the fuel is uniformly atomized into fine particles, forming a stable 60°-100° conical spray, thereby improving combustion efficiency. At the same time, the threaded connection structure enhances stability under high temperature conditions and supports adaptability to a wide pressure range (0.13 kPa to 2000 kPa).

[0017] For details, see Figure 1The fuel flows downward along the flat surface from the two side guide ports 202.

[0018] Fuel (such as aviation kerosene or aviation diesel) enters from the guide ports 202 on both sides of the cone-shaped part 204 at the top of the swirl core 2 and flows downward along the flat surface, forming a swirling effect.

[0019] Further, see Figure 3 The conical guide port 101 at the bottom of the shell 1 is positioned opposite to the annular guide port 201 at the bottom of the swirl core 2 to form a fuel outlet path.

[0020] The swirling fuel is ejected through an outlet path that is opposite to the annular guide port 201 at the bottom of the swirling core 2 and the conical guide port 101 at the bottom of the shell 1.

[0021] When using the atomizing nozzle, fuel (such as aviation kerosene or aviation diesel) enters from the guide ports 202 on both sides of the conical part 204 at the top of the swirl core 2 and flows downward along the flat surface, forming a swirling effect. This swirling fuel is then ejected through the outlet path set opposite to the annular guide port 201 at the bottom of the swirl core 2 and the conical guide port 101 at the bottom of the shell 1. Under low pressure (such as 0.13 kPa) and low flow rate (such as 1 L / h), the guide angle of the swirl core 2 and the conical structure of the shell 1 ensure that the fuel is uniformly atomized into fine particles, forming a stable 60°-100° conical spray, thereby improving combustion efficiency. At the same time, the threaded connection structure enhances stability under high temperature conditions and supports adaptability to a wide pressure range (0.13 kPa to 2000 kPa).

[0022] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. An atomizing nozzle, comprising a housing (1) and a swirl core (2), characterized in that, The housing (1) has an internal thread inside, and the vortex core (2) has an external thread (203) outside. The housing (1) and the vortex core (2) are connected by threads. The bottom of the housing (1) has a conical guide port (101). The top annular part of the vortex core (2) has a conical part (204), and guide ports (202) are opened on both sides of the conical part (204). The bottom of the vortex core (2) has an annular guide port (201).

2. The atomizing nozzle as described in claim 1, characterized in that, The fuel flows downward along the flat surface from the two sides of the guide port (202).

3. The atomizing nozzle as described in claim 1, characterized in that, The conical guide port (101) at the bottom of the inner shell (1) is positioned opposite to the annular guide port (201) at the bottom of the swirl core (2) to form a fuel outlet path.

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