Burner with spherical cavity

Abstract

The utility model provides a high-efficiency and energy-saving spherical cavity combustor, which is characterized in that a fuel gun is arranged on a horizontal central axis of a spherical combustion chamber, a plurality of fuel nozzles of the fuel gun are positioned in the spherical combustion chamber, and the fuel nozzles are annularly arranged and are respectively vertical to the horizontal central axis; the head of the ignition device is positioned in the spherical combustion chamber and close to the fuel nozzle; an annular combustion-supporting air distribution pipeline is arranged on the outer wall of the spherical combustion chamber, a plurality of air swirl nozzles are formed in the annular area, covered by the combustion-supporting air distribution pipeline, of the spherical combustion chamber, the air swirl nozzles are annularly distributed, and each air swirl nozzle is tangent to one spherical surface in the spherical combustion chamber to form annular airflow. A combustion smoke exhaust port is further formed in the outer wall of the spherical combustion chamber. By optimizing the shape of the combustion chamber and the airflow path, fuel and air are fully mixed, the combustion efficiency is improved, and harmful emission is reduced.

Description

Technical Field

[0001] This utility model relates to the field of combustion equipment technology, specifically a spherical cavity burner. Background Technology

[0002] Traditional burners are designed for special fuels such as ammonia, which are difficult to ignite and burn stably. However, they often suffer from problems such as incomplete combustion and high emissions. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a high-efficiency and energy-saving spherical cavity burner, which aims to improve the combustion efficiency and stability of fuels (especially ammonia fuel, which is difficult to ignite and burn stably), reduce harmful emissions, and is suitable for various industrial and civil applications requiring efficient and low-carbon combustion heating.

[0004] The specific technical solution is as follows:

[0005] A high-efficiency and energy-saving spherical cavity burner, the structure of which includes a spherical combustion chamber, a fuel nozzle, an ignition device, a combustion air inlet, a combustion flue gas exhaust port, and a control system;

[0006] The fuel gun is positioned on the horizontal central axis of the spherical combustion chamber. The fuel nozzles of the fuel gun are located inside the spherical combustion chamber. There are multiple fuel nozzles arranged in a ring and each is perpendicular to the horizontal central axis. The fuel nozzles spray out towards the spherical cavity wall of the spherical combustion chamber.

[0007] The ignition device uses an electronic ignition gun, with the head of the ignition device located in the spherical combustion chamber and close to the fuel nozzle.

[0008] The outer wall of the spherical combustion chamber is provided with an annular combustion air distribution duct, which is located on the vertical central axis and perpendicular to the horizontal central axis; the combustion air distribution duct is provided with a combustion air inlet; multiple air swirl nozzles are opened in the annular area covered by the combustion air distribution duct on the spherical combustion chamber, the air swirl nozzles are distributed in an annular manner, and each air swirl nozzle is tangent to a spherical surface inside the spherical combustion chamber, forming an annular airflow;

[0009] The outer wall of the spherical combustion chamber is also equipped with a combustion flue gas exhaust port.

[0010] The principle of the spherical cavity burner is based on the three-dimensional vortex phenomenon in nature. By optimizing the shape of the combustion chamber and the airflow path, it achieves full mixing and stable combustion of fuel and air, thereby improving combustion efficiency and combustion stability.

[0011] This invention provides a highly efficient and energy-saving spherical cavity burner. By optimizing the combustion chamber shape and airflow path, it achieves thorough mixing of fuel and air, improving combustion efficiency and reducing harmful emissions. This burner is suitable for various industrial and civil applications requiring efficient combustion heating, such as boilers, heating furnaces, and dryers. By enhancing the ignition environment to improve ignition success rate, combustion stability, and combustion efficiency, while reducing harmful emissions, this invention offers significant advantages in environmental protection and energy conservation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the airflow rotation path and mixing within the spherical combustion chamber of this invention. Detailed Implementation

[0015] The specific technical solution of this utility model is described in conjunction with the accompanying drawings.

[0016] like Figure 1 and Figure 2 As shown, a high-efficiency and energy-saving spherical cavity burner includes a spherical combustion chamber 1, a fuel nozzle 3, an ignition device 4, a combustion air inlet 5, a combustion flue gas exhaust port 6, and a control system.

[0017] The spherical combustion chamber 1 adopts a spherical or near-spherical design with a smooth interior without dead corners, which is conducive to airflow rotation and mixing.

[0018] The fuel gun 2 is set on the horizontal central axis of the spherical combustion chamber 1. The fuel nozzle 3 of the fuel gun 2 is located inside the spherical combustion chamber 1. There are multiple fuel nozzles 3, which are arranged in a ring and are perpendicular to the horizontal central axis. The fuel nozzles 3 spray out towards the spherical cavity wall of the spherical combustion chamber 1 to ensure uniform fuel distribution.

[0019] The ignition device 4 uses an electronic ignition gun. The head of the ignition device 4 is located inside the spherical combustion chamber 1 and close to the fuel nozzle 3. It adopts high-efficiency ignition technology to ensure rapid ignition of the gas mixture.

[0020] The outer wall of the spherical combustion chamber 1 is provided with an annular combustion air distribution pipe 7, which is located on the vertical central axis and perpendicular to the horizontal central axis; the combustion air distribution pipe 7 is provided with a combustion air inlet 5; multiple air swirl nozzles 8 are opened in the annular area covered by the combustion air distribution pipe 7 on the spherical combustion chamber 1, the air swirl nozzles 8 are distributed in an annular manner, and each air swirl nozzle 8 is tangent to a spherical surface inside the spherical combustion chamber 1 to form an annular airflow;

[0021] The outer wall of the spherical combustion chamber 1 is also equipped with a combustion flue gas exhaust port 6. The combustion flue gas exhaust port 6 is rationally arranged to ensure that air can fully enter the combustion chamber while effectively expelling exhaust gas.

[0022] like Figure 3 As shown, combustion air enters the spherical combustion chamber 1 tangentially along the spherical surface, forming a strong swirling flow inside the chamber, and a low-pressure, low-speed zone is formed in the middle of the spherical combustion chamber 1; the combustion flame and flue gas are discharged from the opposite side of the fuel gun 2 coaxially, perpendicular to the direction of air entry.

[0023] The design of the spherical combustion chamber 1 creates a rotating airflow within the chamber, which facilitates thorough mixing of fuel and air. This rotating airflow in the spherical cavity forms a low-pressure, low-speed, high-temperature, and oxygen-deficient flame stabilization zone at the center of the combustion chamber, thereby improving combustion efficiency and stability while reducing pollutant emissions. The control system regulates fuel supply, airflow, and ignition timing to ensure the stability and safety of the combustion process.

Claims

1. A high-efficiency and energy-saving spherical cavity burner, characterized in that, It includes a spherical combustion chamber (1), a fuel nozzle (3), an ignition device (4), a combustion air inlet (5), a combustion flue gas exhaust port (6), and a control system; The fuel gun (2) is set on the horizontal central axis of the spherical combustion chamber (1), and the fuel nozzle (3) of the fuel gun (2) is located inside the spherical combustion chamber (1); The head of the ignition device (4) is located inside the spherical combustion chamber (1) and close to the fuel nozzle (3); The outer wall of the spherical combustion chamber (1) is provided with an annular combustion air distribution pipe (7), which is located on the vertical central axis and perpendicular to the horizontal central axis; the combustion air distribution pipe (7) is provided with a combustion air inlet (5); multiple air swirl nozzles (8) are opened in the annular area covered by the combustion air distribution pipe (7) on the spherical combustion chamber (1), the air swirl nozzles (8) are distributed in an annular shape, and each air swirl nozzle (8) is tangent to a spherical surface inside the spherical combustion chamber (1) to form an annular airflow; The outer wall of the spherical combustion chamber (1) is also provided with a combustion flue gas exhaust port (6).

2. The high-efficiency and energy-saving spherical cavity burner according to claim 1, characterized in that, There are multiple fuel nozzles (3), arranged in a ring and perpendicular to the horizontal central axis. The fuel nozzles (3) spray out towards the spherical cavity wall of the spherical combustion chamber (1).

3. The high-efficiency and energy-saving spherical cavity burner according to claim 1, characterized in that, The ignition device (4) mentioned above uses an electronic ignition gun.

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