A type of atomization-to-vaporization liquid fuel burner

Abstract

This utility model discloses an atomization-to-vaporization liquid fuel burner head, including a lower seat, an upper seat, a lower burner plate, and an upper burner plate. The lower seat includes a lower seat shell with an upper opening, and the upper seat includes an upper seat shell with an upper opening. A flange is provided on the outer side of the upper part of the upper seat shell, and the flange is tightly connected to the upper part of the lower seat shell. A flame hole is provided at the center of the bottom of the upper seat. A fixing hole and an air inlet are provided at the bottom of the lower seat. A nozzle is installed in the fixing hole, with the nozzle hole facing the center of the flame hole. An oil inlet pipe is installed on the nozzle. The lower burner plate is located inside the upper seat, and the upper burner plate is located on the upper part of the upper seat. Advantages: High-efficiency combustion: Through multi-stage flame distribution, multiple air replenishment, and pressure stabilization design, the fuel combustion efficiency is greatly improved; strong stability improves combustion efficiency; multi-stage oxygen supply achieves complete combustion; high flame stability reduces heat loss. The raised design of the lower burner plate solves the problem of unburned liquid fuel flowing back into the burner head after atomization.

Description

Technical Field

[0001] This utility model relates to the field of commercial stove technology, specifically to a burner head that converts atomization to vaporization of liquid fuel. Background Technology

[0002] Traditional liquid fuel burners suffer from the following technical defects: During the ignition and start-up phase, insufficient initial temperature in the combustion chamber leads to delayed fuel vaporization, a mismatch between the atomized fuel flow field and the thermal field distribution, and incomplete combustion of some liquid fuel due to incomplete vaporization. Unburned fuel, under the high temperature of the furnace cavity, not only causes secondary pollution from oil fumes and excessive carbon monoxide emissions, but also triggers fuel backflow into the burner head, generating oil fumes due to the high temperature inside the burner head, significantly shortening the equipment's lifespan and affecting normal operation. Simultaneously, the combustion process suffers from aerodynamic turbulence and uneven oxygen gradient distribution, resulting in low thermodynamic efficiency and insufficient utilization of the unit fuel calorific value. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an atomization-to-vaporization liquid fuel burner head, which solves the problems existing in the prior art.

[0004] The technical solution is as follows: A liquid fuel atomization-to-vaporization burner head includes a lower seat and an upper seat. The lower seat includes a lower seat shell with an upper opening, and the upper seat includes an upper seat shell with an upper opening. A flange is provided on the outer side of the upper part of the upper seat shell, and the flange is tightly connected to the upper part of the lower seat shell. A flame hole is provided at the center of the bottom of the upper seat. A fixing hole and an air inlet are provided at the bottom of the lower seat. A nozzle is installed in the fixing hole, and the nozzle hole is directly opposite the center of the flame hole. An oil inlet pipe is installed on the nozzle. The burner head also includes a lower fire distribution plate and an upper fire distribution plate. The lower fire distribution plate is located inside the upper seat. A lower fire distribution hole is opened on the surface of the lower fire distribution plate, dividing the upper seat cavity into upper and lower spaces. An upper fire distribution plate is provided on the upper part of the upper seat, and an upper fire distribution hole is provided on the surface of the upper fire distribution plate.

[0005] Based on the above technical solution, further optimization is achieved by providing an air inlet pipe at the lower part of the base, with the outlet of the air inlet pipe located directly below the air inlet duct. A pressure stabilizing plate is provided on the outer side of the nozzle, located directly above the air inlet duct, with multiple air-gathering holes evenly distributed on its surface. This is used to optimize airflow distribution and stabilize combustion pressure.

[0006] Based on the above technical solution, a circular boss is provided on the upper part of the outer side of the flange, and an upper air inlet hole that runs vertically through the upper part of the flange is provided. Multiple upper air inlets are evenly arranged around the flange.

[0007] Further optimization based on the above technical solution includes a combustion-supporting ring, which comprises a circular ring at the bottom. Multiple side combustion-supporting holes penetrating the circular ring are provided on the outer side of the combustion-supporting ring. The bottom or inner side of the circular ring is tightly connected to the upper flame distribution plate. The top of the circular ring is bent outward and extends to the inner side of the circular boss, and an upper combustion-supporting hole that runs vertically through the extension is provided. The upper air intake is connected to the upper combustion-supporting hole and the side combustion-supporting holes respectively.

[0008] Based on the above technical solution, a further optimization is made by providing a ring-shaped step on the outer side of the extension. The top of the ring-shaped step extends horizontally outward and connects with the circular boss. Air enters the upper combustion port and the side combustion port through the upper air intake port, and then enters the combustion zone, forming a multi-stage air replenishment channel to achieve multiple oxygen replenishment.

[0009] Based on the above technical solution, a further optimization is made by setting an annular fire-gathering ring at the top of the ring, wherein the upper diameter of the inner side of the fire-gathering ring is smaller than the lower diameter.

[0010] Based on the above technical solution, an ignition device is further optimized at the lower part of the base. The ignition needle on the ignition device is positioned close to the top of the nozzle to ensure rapid ignition after fuel atomization. The ignition needle is wrapped with high-temperature resistant ceramic.

[0011] Based on the above technical solution, the center of the lower flame distribution plate is raised upwards, and a side flame distribution hole that penetrates both inside and outside is provided on the outer side of the raised part. The center of the lower flame distribution plate is raised upwards, and a side flame distribution hole is opened on the outer side. The lower flame distribution hole is used to achieve uniform fuel dispersion. The liquid that is not fully atomized is sprayed into the raised part and then sprayed into the upper space through the lower flame distribution hole.

[0012] Based on the above technical solution, further optimization is made by providing a side air inlet on the outer side of the upper housing and a conical cavity at its lower part. The upper diameter of the conical cavity is larger than the lower diameter. Multiple oblique air inlets are evenly distributed on the outer wall surface of the conical cavity. Multiple lower air inlets are evenly distributed around the flame hole. The oblique air inlets and lower air inlets increase the air intake volume and optimize the air-fuel mixture effect and combustion environment.

[0013] Based on the above technical solution, further optimization is made. The oil inlet pipe is set horizontally through the air inlet pipe. The oil inlet pipe is fixedly connected to the nozzle by threads. The oil inlet pipe is used to transport fuel to the nozzle. Finally, the fuel is sprayed out from the nozzle hole. The assembly process is simplified by fixing it with threads.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] High-efficiency combustion: Through multi-stage combustion, multiple air replenishment, and pressure stabilization design, fuel combustion efficiency is greatly improved; Clean and environmentally friendly: The secondary combustion-supporting structure effectively reduces carbon monoxide emissions; Strong stability: The pressure stabilizing plate and flame-gathering ring work together to ensure stable flame combustion under different operating conditions. Air-concentrating holes on the pressure stabilizing plate make the flame from the burner head more concentrated, reducing the temperature around the nozzle and extending its service life; Combined atomization and vaporization: Fuel is atomized by the nozzle, combined with the secondary vaporization design of the upper and lower spaces of the combustion plate, improving combustion efficiency; Multi-stage oxygen supply: The multi-stage air channel design of the air inlet pipe, upper air inlet, and combustion-supporting ring achieves complete combustion and reduces carbon buildup; Flame stability: The pressure stabilizing plate and flame-gathering ring work together to stabilize the flame shape and reduce heat loss; Modular structure: The split design of the upper and lower seats and the threaded connection facilitate disassembly and maintenance. The raised design of the lower combustion plate solves the technical problem of unburned liquid fuel flowing back into the burner head after atomization. Attached Figure Description

[0016] Figure 1 This is a perspective view of the utility model;

[0017] Figure 2 This is a three-dimensional sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a partial sectional perspective view of the lower part of the present invention;

[0020] Figure 5 This is a three-dimensional view of the lower fire distribution plate of this utility model;

[0021] Figure 6 This is a perspective view of the voltage regulator board of this utility model;

[0022] Figure 7 This is a perspective view of the combustion-supporting ring and the flame-gathering ring in Embodiment 2 of this utility model;

[0023] Figure 8 This is a cross-sectional view of the present invention with the combustion-supporting ring 2 and the fire-gathering ring configured;

[0024] Figure 9 This is a perspective view of the combustion-supporting ring of Embodiment 1 of this utility model;

[0025] Figure 10 This is a cross-sectional view of the combustion ring and the upper seat in Embodiment 1 of this utility model.

[0026] Among them, 1. Upper seat, 101. Fire hole, 102. Lower air inlet, 103. Oblique air inlet, 104. Upper air inlet, 105. Side air inlet, 106. Flange, 107. Circular boss;

[0027] 2. Lower seat, 201. Air duct, 202. Fixing hole;

[0028] 3. Air inlet duct;

[0029] 4. Upper ignition plate, 401, upper ignition port;

[0030] 5. Lower distributor plate, 501. Lower distributor port, 502. Side distributor port;

[0031] 6. Spray nozzle;

[0032] 7. Oil inlet pipe;

[0033] 8. Voltage stabilizer plate, 801, air collection hole;

[0034] 9. Ignition device;

[0035] 11. Combustion-supporting ring; 1101. Upper combustion-supporting hole; 1102. Side combustion-supporting hole; 1103. Circular ring; 1104. Circular step;

[0036] 12. Fire ring. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Reference Figure 1-10A liquid fuel atomization-to-vaporization burner head includes a lower seat 2 and an upper seat 1. The lower seat 2 includes a lower seat shell with an upper opening, and the upper seat 1 includes an upper seat shell with an upper opening. A flange 106 is provided on the outer side of the upper part of the upper seat shell, and the flange 106 is tightly connected to the upper part of the lower seat shell 2. A flame hole 101 is provided at the center of the bottom of the upper seat 1. A fixing hole 202 and an air inlet duct 201 are provided at the bottom of the lower seat 2. A nozzle 6 is installed in the fixing hole 202. The nozzle 6 hole is directly opposite the center of the flame hole 101. An oil inlet pipe 7 is installed on the nozzle 6. The burner head also includes a lower fire distribution plate 5 and an upper fire distribution plate 4. The lower fire distribution plate 5 is located inside the upper seat 1. A lower fire distribution hole 501 is opened on the surface of the lower fire distribution plate 5, dividing the cavity of the upper seat 1 into upper and lower spaces. An upper fire distribution plate 4 is provided on the upper part of the upper seat 1. An upper fire distribution hole 401 is provided on the surface of the upper fire distribution plate 4.

[0041] The lower part of the lower seat 2 is provided with an air inlet pipe 3, the outlet of which is located directly below the air inlet duct 201. A pressure stabilizing plate 8 is provided on the outer side of the nozzle 6, located directly above the air inlet duct 201, and its surface is evenly distributed with multiple air-gathering holes 801. A circular boss 107 is provided on the upper part of the outer side of the flange 106, and an upper air inlet hole 104 is provided on the upper part of the flange 106, with multiple upper air inlets 104 evenly distributed around the flange 106. An ignition device is provided at the lower part of the lower seat 2, and the ignition needle 9 on the ignition device is located near the upper part of the nozzle 6. The center of the lower flame distribution plate 5 is raised upward, and a side flame distribution hole 502 is provided on the outer side of the raised part. A side air inlet hole 105 is provided on the outer side of the upper seat 1 housing, and a conical cavity is provided at its lower part. The upper diameter of the conical cavity is larger than the lower diameter, and multiple oblique air inlets 103 are evenly distributed on the outer wall surface of the conical cavity. The oil inlet pipe 7 is installed horizontally through the air inlet pipe 3, and the oil inlet pipe 7 is fixedly connected to the nozzle 6 by threads.

[0042] Example 1: Combustion ring 11 includes a ring 1103 at the bottom. Multiple side combustion holes are provided on the outer side of the ring 1103. The bottom or inner side of the ring 1103 is tightly connected to the upper flame plate 4. The top of the ring 1103 bends outward and extends to the inner side of the circular boss 107. An upper combustion hole 1101 is provided at the extension. The upper air inlet 104 is connected to the upper combustion hole 1101 and the side combustion holes 1102 respectively. A ring-shaped step 1104 is provided on the outer side of the extension. The top of the ring-shaped step 1104 extends horizontally outward and connects to the circular boss 107.

[0043] Example 2: Combustion ring 11. The combustion ring 11 includes a circular ring 1103 at the bottom. Multiple side combustion holes are provided on the outer side of the combustion ring 11 through the circular ring 1103. The bottom or inner side of the circular ring 1103 is tightly connected to the upper flame distribution plate 4. The top of the circular ring 1103 bends outward and extends to the inner side of the circular boss 107. An upper combustion hole 1101 is provided at the extension. The upper air inlet 104 is connected to the upper combustion hole 1101 and the side combustion holes 1102 respectively. In Example 2, a flame-gathering ring 12 is also provided on the upper part of the combustion ring 11. The top of the circular ring 1103 is provided with an annular flame-gathering ring 12. The upper diameter of the inner side of the flame-gathering ring 12 is smaller than the lower diameter. The flame-gathering ring has the function of guiding the flame, making the flame combustion more concentrated and improving thermal efficiency.

[0044] Fuel atomization: Liquid fuel is fed into nozzle 6 through inlet pipe 7, atomized under high pressure, and then sprayed out from nozzle 6.

[0045] Mixing: The air delivered by the air inlet pipe 3 is evenly distributed through the air inlet duct 201 and the pressure stabilizing plate 801, and mixes with the atomized fuel below the lower fire plate 5.

[0046] Initial combustion: The mixed gas enters the combustion zone of the upper seat through the flame hole 101. After the ignition needle 9 ignites it, a basic flame is formed. At this time, part of the liquid fuel is burned, and the other part is blown into the upper space through the lower flame hole 501. The raised part of the lower flame plate 5 has a guiding function, so that the unburned liquid fuel is guided to the upper space through the side flame hole 502 set on the outside of the raised part, so as to prevent the liquid fuel from flowing back into the burner head.

[0047] Further combustion: Air is blown from the side air inlet 105 and the oblique air inlet 103 into the interior of the upper seat 1, making the combustion in the upper space of the lower fire plate 5 more complete.

[0048] Final Combustion and Combustion Support: The combustion flame is ejected from the upper flame distribution port 401 and burns fully in the upper flame distribution plate 4. External air is divided into two paths through the upper air inlet port 104: one path supplements the oxygen at the top of the flame through the upper combustion support port 1101; the other path assists combustion laterally through the side combustion support port 1102 and reduces carbon monoxide emissions. During normal operation, due to the high temperature inside the burner head, the atomized liquid fuel sprayed from the nozzle immediately vaporizes and burns fully upon encountering the high temperature.

[0049] Flame optimization: The flame is gathered by the flame ring 12, and air is introduced into the oblique air inlet 103 and the lower air inlet 102 to assist combustion. The fuel is vaporized in the conical cavity and finally forms a uniform high-temperature flame through the upper flame distribution hole 401.

[0050] Any unmentioned structures and connections are common knowledge.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid fuel atomization-to-vaporization burner head, comprising a lower seat and an upper seat, wherein the lower seat includes a lower seat shell with an upper opening, and the upper seat includes an upper seat shell with an upper opening; a flange is provided around the upper outer side of the upper seat shell, and the flange is tightly connected to the upper part of the lower seat shell, characterized in that: The upper seat has a fire hole at the center of its bottom, and the lower seat has a fixing hole and an air inlet at its bottom. A nozzle is installed in the fixing hole, with the nozzle hole facing the center of the fire hole. An oil inlet pipe is installed on the nozzle. The upper seat also includes a lower fire plate and an upper fire plate. The lower fire plate has an upward bulge at its center and a lower fire hole on its surface. The lower fire plate divides the upper seat cavity into upper and lower spaces. An upper fire plate is installed on the upper part of the upper seat, and an upper fire hole is provided on the surface of the upper fire plate that runs through it from top to bottom.

2. The atomization-to-vaporization liquid fuel burner head according to claim 1, characterized in that: The lower part of the base is provided with an air inlet pipe, the outlet of the air inlet pipe is located directly below the air inlet channel, and a pressure stabilizing plate is provided on the outside of the nozzle, the pressure stabilizing plate is located directly above the air inlet channel, and multiple air gathering holes are evenly distributed on its surface.

3. The atomization-to-vaporization liquid fuel burner head according to claim 1, characterized in that: A circular boss is provided on the upper part of the outer side of the flange, and an upper air inlet hole that runs vertically through the upper part of the flange is provided. Multiple upper air inlets are evenly arranged around the flange.

4. The atomization-to-vaporization liquid fuel burner head according to claim 3, characterized in that: It also includes a combustion-supporting ring, which includes a circular ring at the bottom. The outer side of the combustion-supporting ring is provided with multiple side combustion-supporting holes that penetrate the circular ring. The bottom or inner side of the circular ring is tightly connected to the upper flame distribution plate. The top of the circular ring is bent outward and extends to the inner side of the circular boss, and an upper combustion-supporting hole that runs vertically through the extension is provided. The upper air intake is connected to the upper combustion-supporting hole and the side combustion-supporting holes respectively.

5. The atomization-to-vaporization liquid fuel burner head according to claim 4, characterized in that: An annular step is provided on the outer side of the extension, and the top of the annular step extends horizontally outward and connects with the circular boss.

6. The atomization-to-vaporization liquid fuel burner head according to claim 4, characterized in that: The top of the ring is provided with an annular fire-gathering ring, the upper diameter of which is smaller than the lower diameter.

7. The atomization-to-vaporization liquid fuel burner head according to claim 1, characterized in that: An ignition device is provided at the lower part of the lower seat, and the ignition needle on the ignition device is positioned near the top of the nozzle.

8. The atomization-to-vaporization liquid fuel burner head according to claim 1, characterized in that: Multiple side fire holes are evenly distributed on the outer side of the upwardly raised portion.

9. The atomizing-to-vaporizing liquid fuel burner head according to claim 1, characterized in that: The upper housing has a side air inlet on its outer side and a conical cavity at its lower part. The upper diameter of the conical cavity is larger than the lower diameter. Multiple oblique air inlets are evenly distributed on the outer wall surface of the conical cavity. Multiple lower air inlets are evenly distributed around the fire hole.

10. The atomization-to-vaporization liquid fuel burner head according to claim 2, characterized in that: The oil inlet pipe is installed horizontally through the air inlet pipe, and the oil inlet pipe is fixedly connected to the nozzle by threads.

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