A new type of burner

Abstract

The present invention discloses a novel burner, comprising a heat-insulating base, a burner body and a burner nozzle mounted on both ends of the heat-insulating base, the burner body comprising a burner cover, a stabilizer mounted on the burner cover, and a stabilizer plate mounted on the end of the stabilizer, the burner cover being provided with a plurality of holes, an observation mirror, a spark plug, and a plurality of plugs being mounted on the burner cover through the holes, the spark plug being connected to the stabilizer, the stabilizer extending through the heat-insulating base into the burner nozzle, a gas passage being provided inside the burner nozzle, openings being provided at both ends, and the burner nozzle being connected to the gas mixing passage of the burner body. The burner provided by the present invention adopts staged combustion and has the advantages of ultra-low NOx emissions, energy conservation and emission reduction, high efficiency and environmental protection, etc. A burner body can carry a variety of burners, and the flame shape, length, speed, diameter, and adaptability to different furnace types can be changed by replacing the burner nozzle.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, in particular to a novel burner. Background Art

[0002] In the related art, a fuel channel is provided on the burner, but the fuel channel is not provided with an air supply structure, resulting in uneven mixing of fuel and air, causing low combustion efficiency and serious environmental pollution; there are many types of burners at present, and their gas mixing paths are usually: the gas flows out from the nozzle, is injected and mixed through the ejector tube, and then flows through the burner head and the burner base to the ignition distributor, and then to the gas mixing chamber formed by the ignition distributor and the fire cover, or directly flows from the ejector tube to the gas mixing chamber formed by the ignition distributor and the fire cover, and finally is ejected through the fire hole, contacts with the air and burns, so as to achieve the purpose of fully burning the fuel.

[0003] Especially in the fields of steel and coking processing, the existing burners can only achieve one-time combustion. The center flame temperature inside the burner is high, which will produce a large amount of nitrogen oxides, polluting the environment and possibly endangering human health. The burner ignition method uses indirect ignition, which has great deficiencies in safety. The field has very high requirements for flame temperature. Due to the limitations of its materials and structure, the flame temperature generated by fuel combustion of traditional burners cannot reach the temperature required in this production and processing. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and design a new type of burner.

[0005] The technical solution of the present invention for achieving the above-mentioned purpose is: a new type of burner, comprising a heat-insulating base, a burner body and a burner nozzle are respectively installed at both ends of the heat-insulating base, the burner body comprises a burner upper cover, a stabilizer installed on the burner upper cover and a stabilizing plate installed at the end of the stabilizer, a plurality of holes are opened on the burner upper cover, an observation mirror, a spark plug and a plurality of plugs are installed on the burner upper cover through the holes, the stabilizer passes through the heat-insulating base and extends into the burner nozzle, a gas channel is opened inside the burner, openings are opened at both ends, and the burner is connected to the gas mixing channel of the burner body.

[0006] Preferably, the burner body integrates air and flow orifice plates, and a gasket is further provided in the burner body, and the gasket is located between the burner upper cover and the heat-insulating base.

[0007] Preferably, the burner body is provided with four diagonally distributed bolt holes, and hexagon socket bolts are provided in the bolt holes. The burner body is fixed to the heat-insulating base by the hexagon socket bolts.

[0008] Preferably, a fuel inlet and an air inlet are further provided on the burner upper cover, and the fuel inlet and the air inlet are respectively connected to the stabilizer.

[0009] Preferably, the aperture of the fuel inlet is 0.75-2 inches, the aperture of the air inlet is 1.25-4 inches, and the distance between the central axis of the fuel inlet and the central axis of the air inlet is 2.75-3.63 inches.

[0010] Preferably, the burner is fixedly connected to the end of the heat-insulating base via a flange, and the burner includes a groove burner, a square burner and a circular burner.

[0011] The main body of the groove burner is a cylindrical structure, the outlet end is a flat structure, the outlet is an oblong hole, the short side size of the groove burner outlet is 7.874-43.434 mm, and the long side size is 63.5-203.2 mm.

[0012] Preferably, a metal bushing is provided between the square burner and the heat-insulating base. The main body of the square burner is a cubic structure, the outlet is a circular hole, and the size of the square burner outlet is 20.574-123.952 mm.

[0013] Preferably, the main body of the circular burner is a bottle-shaped structure, the outlet is a circular hole, and the size of the circular burner outlet is 20.574-123.952 mm.

[0014] Preferably, the angle between the spark plug and the central axis of the burner body is 30°.

[0015] Its beneficial effect is that the burner provided by the present invention adopts staged combustion, which can effectively reduce the center flame temperature, thereby reducing the content of nitrogen oxides in the exhaust gas, and has the advantages of ultra-low NOx emissions, energy saving and emission reduction, high efficiency and environmental protection, etc. It can adapt to combustion-supporting air of up to 500°C, thereby improving thermal efficiency. The fuel in the burner is directly ignited by a spark plug, and combined with fire detection, etc., it has good safety. The burner body and burner are made of special materials and have a long service life. In addition, an integrated air and gas flow orifice plate is used, a wide range of air-fuel ratio range, and both excess air and excess gas can be achieved. It can also provide high-speed jets to stir the atmosphere in the furnace, so that the temperature in the furnace has good uniformity, and can be heated to a maximum of more than 1650°C. The special structural design allows a burner body to carry multiple types of burners. By replacing the burner, the flame shape, length, speed, diameter, and suitability for different furnace types can be changed, and it has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the burner body of the present invention;

[0018] Figure 3 This is a schematic structural diagram of a grooved burner according to the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the circular burner of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the present invention with a square burner.

[0021] In the figure, 1. Insulated base; 2. Burner body; 201. Burner cover; 202. Stabilizer; 203. Stabilizing plate; 3. Burner; 301. Grooved burner; 302. Round burner; 303. Square burner; 4. Spark plug; 5. Hexagon socket bolt; 6. Fuel inlet; 7. Air inlet; 8. Plug; 9. Observation mirror; 10. Metal bushing; 11. Gasket. DETAILED DESCRIPTION

[0022] First of all, let me explain the original intention of the design of the present invention. When using existing burners, due to the limitations of their structure and materials, the fuel combustion is not complete, a large amount of harmful gases will be produced, which is harmful to human health, and the flame produced becomes longer or shakes, and there is a high probability of flame separation, etc., which will greatly reduce the combustion efficiency of the fuel. In addition, the existing burners have poor versatility and cannot meet the use requirements of different furnace types. The new burner provided by the present invention can solve the problem of flame fluctuation due to load adjustment and combustion process, and different burners can be replaced according to different furnace types to achieve the purpose of changing the flame shape, length, speed and diameter to meet the use requirements of different furnace types.

[0023] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-Figure 2 As shown, the burner mainly includes an insulation base 1, a burner body 2 and a burner 3, wherein the burner 3 and the burner body 2 are respectively installed at the two ends of the insulation base 1, and the burner 3 is connected to the insulation base 1 through a flange, and the flange can improve the sealing of the device; four diagonally distributed bolt holes are opened on the burner body 2, and hexagon socket bolts 5 are arranged in the bolt holes, and the burner body 2 is fixed to the insulation base 1 through the hexagon socket bolts 5; the burner body 2 includes a burner cover 201, a stabilizer 202 installed on the burner cover 201 and a stabilizing plate 203 installed at the end of the stabilizer 202, wherein the stabilizer 202 is the combustion area of ​​the fuel, and the stabilizing plate 203 is a plate with a porous structure, which is fixed to the end of the stabilizer 202 by screws to stabilize the flame so that the flame does not separate from the flame.

[0024] The burner body 2 integrates air and gas flow orifice plates, and a gasket 11 is provided between the burner cover 201 and the heat-insulating base 1 to enhance the sealing of the structure and make the burner cover 201 and the heat-insulating base 1 fit more tightly; the burner cover 201 is used to fix the stabilizer 202, and an air inlet 7, a fuel inlet 6 and a plurality of holes are provided on the burner cover 201, and an observation mirror 9, a spark plug 4 and a plurality of plugs 8 are installed in the holes respectively, wherein the air inlet 7 and the fuel inlet 6 are threaded holes, which are connected to the stabilizer 202, and the air inlet 7 and the fuel inlet 6 are connected to the external The air pipe and the fuel pipe are connected. In order to ensure the combustion efficiency of the fuel inside the burner, the size ratio of the air inlet 7 and the fuel inlet 6 are specially designed after many experiments. The aperture of the fuel inlet 6 is 0.75-2 inches, the aperture of the air inlet 7 is 1.25-4 inches, and the distance between the central axis of the fuel inlet 6 and the central axis of the air inlet 7 is 2.75-3.63 inches. This aperture design can adjust the ratio of air and fuel from another perspective. At the same flow rate per unit time, the ratio of air and fuel entering the burner is specific, thereby achieving extremely high fuel combustion efficiency.

[0025] The spark plug 4 is used to ignite the fuel in the burner. It is screwed on the burner cover 201 and directly passes through the stabilizer 202. The angle between the spark plug 4 and the central axis of the burner body 2 is 30°. This angle can ensure that the fuel in the burner can be ignited 100%. The combustion of the fuel inside the burner can be observed through the observation mirror 9; the above-mentioned stabilizer 202 passes through the insulation base 1 and extends into the burner 3. A gas channel is provided inside the burner 3, with openings at both ends. The burner 3 is connected to the gas mixing channel of the burner body 2. After the excess fuel in the stabilizer 202 is initially burned, the flame is stabilized by the stabilizing plate 203, and air will enter the burner 3 from the outlet of the burner 3. Secondary combustion will be carried out in the burner 3, and the fuel will be fully burned in the excess air. A large amount of air can reduce nitrogen oxides and adjust the hot air temperature. Finally, the flame is discharged from the outlet of the burner 3 into the furnace. The burner can adapt to combustion air at a maximum temperature of 500°C, thereby improving the combustion efficiency of the fuel.

[0026] like Figure 3 、 Figure 4 、 Figure 5As shown, the burner 3 provided by the present invention has multiple types, including a groove burner 301, a round burner 302 and a square burner 303. Its material can be metal or ceramic. Different types and materials of burners 3 can be selected according to actual needs; the main body of the groove burner 301 is a cylindrical structure, the outlet end is a flat structure, the outlet is an oblong hole, the short side size of the groove burner 301 outlet is 7.874-43.434mm, and the long side size is 63.5-203.2mm; a hole is provided between the square burner 303 and the insulation base 1. A metal bushing 10 is provided to strengthen the connection between the square burner 303 and the insulation base 1. The main body of the square burner 303 is a cubic structure, and the outlet is a circular hole. The size of the square burner 303 outlet is 20.574-123.952mm; the main body of the circular burner 302 is a bottle-shaped structure, and the outlet is a circular hole. The size of the circular burner 302 outlet is 20.574-123.952mm. This size is the result of continuous testing and improvement. By replacing the burner 3, the flame shape, length, speed and diameter can be changed. It can be applied to different furnace types and has a wide range of applications.

[0027] Working principle: Fuel and air enter the stabilizer 202 in the burner body 2 through the fuel inlet 6 and the air inlet 7 respectively, and then are ignited by the spark plug 4. The fuel is ignited in the stabilizer 202 to produce a primary combustion (incomplete combustion, excessive fuel). After the primary flame is stabilized by the stabilizing plate 203, a secondary combustion is carried out in the burner 3. The purpose of this is to effectively reduce the center flame temperature, thereby reducing the content of nitrogen oxides in the exhaust gas. Finally, the flame is sprayed into the furnace at high speed through the outlet of the burner 3.

[0028] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A novel burner, comprising a heat-insulating base (1), characterized in that: A burner body (2) and a burner nozzle (3) are respectively installed at both ends of the heat-insulating base (1); the burner body (2) comprises a burner upper cover (201), a stabilizer (202) installed on the burner upper cover (201), and a stabilizing plate (203) installed at the end of the stabilizer (202); a plurality of holes are provided on the burner upper cover (201); an observation mirror (9), a spark plug (4), and a plurality of plugs (8) are installed on the burner upper cover (201) through the holes; the stabilizer (202) passes through the heat-insulating base (1) and extends into the burner nozzle (3); a gas passage is provided inside the burner nozzle (3), and openings are provided at both ends; the burner nozzle (3) is connected to a gas mixing passage of the burner body (2); The burner body (2) is integrated with air and gas flow orifice plates; The burner upper cover (201) is also provided with a fuel inlet (6) and an air inlet (7), and the fuel inlet (6) and the air inlet (7) are respectively connected to the stabilizer (202); The stabilizing plate (203) is a plate with a porous structure.

2. A novel burner according to claim 1, characterized in that: A gasket (11) is also provided in the burner body (2), and the gasket (11) is located between the burner upper cover (201) and the heat-insulating base (1).

3. A novel burner according to claim 1, characterized in that: The burner body (2) is provided with four diagonally distributed bolt holes, wherein hexagon socket bolts (5) are arranged in the bolt holes, and the burner body (2) is fixed to the heat-insulating base (1) via the hexagon socket bolts (5).

4. A novel burner according to claim 1, characterized in that: The aperture of the fuel inlet (6) is 0.75-2 inches, the aperture of the air inlet (7) is 1.25-4 inches, and the distance between the central axis of the fuel inlet (6) and the central axis of the air inlet (7) is 2.75-3.63 inches.

5. A novel burner according to claim 1, characterized in that: The burner (3) is fixedly connected to the end of the heat-insulating base (1) via a flange, and the burner (3) comprises a groove burner (301), a square burner (303) and a circular burner (302).

6. A novel burner according to claim 5, characterized in that: The main body of the grooved burner (301) is a cylindrical structure, the outlet end is a flat structure, and the outlet is an oblong hole. The short side size of the outlet of the grooved burner (301) is 7.874-43.434 mm, and the long side size is 63.5-203.2 mm.

7. A novel burner according to claim 5, characterized in that: A metal bushing (10) is further provided between the square burner (303) and the heat-insulating base (1). The main body of the square burner (303) is a cubic structure, and the outlet is a circular hole. The size of the square burner (303) outlet is 20.574-123.952 mm.

8. A novel burner according to claim 5, characterized in that: The main body of the circular burner (302) is a bottle-shaped structure, the outlet is a circular hole, and the size of the outlet of the circular burner (302) is 20.574-123.952 mm.

9. A novel burner according to claim 1, characterized in that: The angle between the spark plug (4) and the central axis of the burner body (2) is 30°.

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