Vortex chamber insert with novel structure

Abstract

The utility model relates to the technical field of engines, in particular to a swirl chamber insert with a novel structure, which comprises an insert body, the insert body is provided with a high-temperature-resistant layer and a heat insulation layer, and the insert body is provided with a main spray hole; the honeycomb pits are formed in the high-temperature-resistant layer of the insert body; and the vent holes are formed in the insert body and are used for increasing the flowability of air so as to accelerate the flowing of the air with poor flowability at the edge. The swirl chamber insert with the novel structure is particularly suitable for gas turbines, aero-engines and industrial combustion equipment. Through innovative geometric design and material combination of the insert structure, the combustion efficiency, the heat efficiency and the durability are remarkably improved. The insert is of a multi-layer composite structure and comprises a high-temperature-resistant layer and a heat insulation layer, mixing of fuel and air is optimized in combination with a surface microstructure, and uniform combustion is achieved. In addition, honeycomb grooves are distributed in the outer surface of the insert, the heat dissipation area is greatly increased, thermal stress is effectively reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to an engine technical field especially relates to a new structure's vortex chamber insert. BACKGROUND

[0002] The combustion chamber insert is a key component in the engine, and its performance directly affects the combustion efficiency, thermal efficiency and engine life. The traditional insert structure usually adopts a single material, which is difficult to balance the requirements of high temperature resistance, heat insulation and cooling, resulting in large heat loss, uneven combustion, thermal stress concentration, and also problems such as poor oxidation resistance and corrosion resistance, so a new structure of vortex chamber insert is needed to solve the above problems. SUMMARY

[0003] The purpose of the utility model embodiment is to provide a new structure of vortex chamber insert, which aims to solve the problems mentioned in the background art.

[0004] The utility model embodiment is realized in this way, a new structure of vortex chamber insert, including: insert body, the insert body is provided with high temperature resistance layer and heat insulation layer, and the insert body is provided with main spray hole;Honeycomb pit, which is arranged on the high temperature resistance layer of the insert body, is used to increase the outer surface area of the insert body to improve the surface heat dissipation performance;Air hole, which is arranged on the insert body, is used to increase the flowability of air to accelerate the flow of air with poor flowability.

[0005] Preferably, the high temperature resistance layer material of the insert body is high temperature resistance alloy or ceramic matrix composite material;The heat insulation layer material of the insert body is low thermal conductivity ceramic or composite material.

[0006] Preferably, the main spray hole and the bottom surface form an angle of 41 degrees, and the shape is semicircular, which is used to increase the air flowability of the vortex chamber;The honeycomb pit is covered with high temperature resistance layer, the diameter of the honeycomb pit is 3mm, and the depth is 0.5mm;The air hole is an array of micropores, the pore size is 0.3mm, and the distribution density is 500 per square centimeter, which is used to increase the air flowability.

[0007] The new structure of vortex chamber insert provided by the utility model is particularly suitable for gas turbine, aero-engine and industrial combustion equipment. The insert structure is significantly improved in combustion efficiency, thermal efficiency and durability through innovative geometric design and material combination. The insert adopts a multilayer composite structure, including a high temperature resistance layer, a heat insulation layer, and a surface microstructure to optimize the mixing of fuel and air, achieving uniform combustion. In addition, the outer surface of the insert is covered with honeycomb grooves, which greatly increases the heat dissipation area, effectively reduces the thermal stress, and prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The schematic view of the new structure of vortex chamber insert.

[0009] Figure 2 This is a schematic diagram of the main nozzle of the vortex chamber insert with the new structure.

[0010] In the attached diagram: 1-Insert, 2-Main nozzle, 3-Honeycomb pit, 4-Ventilation hole. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not limit the present utility model.

[0012] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0013] Please see Figure 1 and Figure 2 This utility model provides a novel vortex chamber insert, which includes:

[0014] The insert 1 is provided with a high-temperature resistant layer and a heat insulation layer, and the insert 1 has a main spray hole 2; honeycomb pits 3 are formed on the high-temperature resistant layer of the insert 1 to increase the outer surface area of ​​the insert 1 to improve the surface heat dissipation performance; and vent holes 4 are formed on the insert 1 to increase the air flow so that the air with poor air flow at the edge can be accelerated.

[0015] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the high-temperature resistant layer of the insert 1 is made of a high-temperature resistant alloy or a ceramic matrix composite material; the heat insulation layer of the insert 1 is made of a ceramic or composite material with low thermal conductivity.

[0016] like Figure 1 and Figure 2 As shown, in a preferred embodiment of this utility model, the main nozzle 2 has an angle of 41 degrees with the ground and is semi-elliptical in shape to increase the airflow of the vortex chamber; the honeycomb pits 3 are covered with a high-temperature resistant layer, and the honeycomb pits 3 have a diameter of 3 mm and a depth of 0.5 mm; the vent 4 is an array of micropores with a diameter of 0.3 mm and a distribution density of 500 per square centimeter to increase airflow.

[0017] The outer surface layer of the insert body 1 is made of high-temperature-resistant alloy or ceramic matrix composite material, forms a high-temperature-resistant layer, and is used to withstand the high-temperature environment in the combustion chamber; the high-temperature-resistant layer is below a heat insulation layer made of low-thermal-conductivity ceramic or composite material, and is used to reduce heat transfer; the surface of the high-temperature-resistant layer is covered with honeycomb pits 3, the honeycomb pits 3 have a diameter of 3 mm and a depth of 0.5 mm, greatly increase the outer surface area, and improve the surface heat dissipation performance; the main injection hole 2 has an angle of 41° with the bottom surface, is in a semi-elliptical shape, and is beneficial to the air flowability in the vortex chamber; the air vent 4 is an array of micropores, has a pore diameter of 0.3 mm, and has a distribution density of about 500 per square centimeter, increases the air flowability, promotes the accelerated flow of air with poor air flowability at the edge, and improves the vortex ratio.

[0018] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new structure of a vortex chamber insert comprising an insert body, characterized by, The insert body is provided with a high-temperature-resistant layer and a heat insulation layer, and the insert body is provided with a main spray hole; The honeycomb pits are arranged on the high-temperature-resistant layer of the insert body, and are used for increasing the outer surface area of the insert body to improve the surface heat dissipation performance; The air holes are arranged on the insert body, and are used for increasing the flowability of air to accelerate the flow of air with poor flowability.

2. The new structured vortex chamber insert of claim 1, wherein, The high-temperature-resistant layer of the insert body is made of a high-temperature-resistant alloy or a ceramic matrix composite material; and the heat insulation layer of the insert body is made of a ceramic or a composite material with low thermal conductivity.

3. The new structured vortex chamber insert of claim 1, wherein, The main spray hole is arranged at an angle of 41 degrees with the bottom surface, and has a semi-elliptical shape, and is used for increasing the flowability of air in the vortex chamber; the honeycomb pits are arranged on the high-temperature-resistant layer, and have a diameter of 3 mm and a depth of 0.5 mm; and the air holes are arrayed micro-holes with a pore diameter of 0.3 mm and a distribution density of 500 per square centimeter, and are used for increasing the flowability of air.

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