Bottom air inlet fuel stove burner

Abstract

The utility model discloses a bottom air inlet fuel oil stove burner which comprises a stove shell with an opening in the upper end, an air inlet hole formed in the bottom of the inner wall of the stove shell, an air inlet pipe arranged at the bottom of the stove shell, a combustion cylinder arranged at the bottom of the inner wall of the stove shell, a connecting frame arranged at the position of the air inlet hole at the bottom of the inner wall of the combustion cylinder, and an oil spraying assembly arranged at the upper end of the connecting frame. The upper end of the combustion cylinder is detachably connected with a fire gathering assembly, and fixing holes are oppositely formed in the lower portion of the side penetrating through the furnace shell and the outer wall of the combustion cylinder. According to the utility model, inlet air can be blown from bottom to top, so that the inlet air is in full contact with fuel and is further atomized, and meanwhile, the fuel can be fully and uniformly combusted in the combustion cylinder.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, and in particular to a bottom-inlet fuel-fired stove burner. Background Technology

[0002] Oil-fired stoves and gas stoves serve similar functions. In recent years, vegetable oil fuel has been developed as a fuel source, creating new fuel alternatives and further saving energy. However, due to structural design limitations, it is inconvenient to install air ducts on current oil-fired stove burners. Furthermore, the burner's own structure limits the accumulation of waste oil, which affects the ignition needle, making stove parts prone to damage and resulting in a short service life.

[0003] According to the utility model patent CN218033261U, a fully combusting oil-fired stove burner assembly structure, it includes a flame-gathering ring, a burner outer casing, an air inlet pipe, an oil spray base, an ignition needle, an oil inlet pipe, a nozzle, and internal components. The burner outer casing is located at the bottom of the flame-gathering ring, the air inlet pipe is located at the bottom side of the burner outer casing, the oil spray base is located at the bottom of the burner outer casing, the ignition needle is located at the top of the oil spray base, the oil inlet pipe is located in the middle of the oil spray base, the nozzle is located at the top of the oil spray base via the oil inlet pipe, and the internal components are located in the upper part of the inner part of the burner outer casing. This utility model solves the problems that easily occur when oil mist sprayed from an oil-fired stove liquefies and adheres to the flame suppressor, flame distributor, or flame-gathering ring during combustion. If the air-fuel ratio is not suitable, the accumulated mist cannot be burned off in time, resulting in smoke, oil dripping from the burner, and carbon buildup.

[0004] Although the above technical solution can reheat unburned fuel oil to make it burn again, because its air inlet pipe is located on one side of the burner head jacket and most of the air intake is blocked by the inner sleeve of the burner head, the air intake through the air hole will create a pressure difference in the airflow inside the inner sleeve of the burner head, resulting in the fuel oil only burning on one side of the inner sleeve of the burner head, leading to incomplete combustion of the fuel. Utility Model Content

[0005] The purpose of this invention is to provide a bottom-inlet fuel stove burner head that allows the airflow to blow from bottom to top, ensuring full contact with the fuel and further atomizing it, while also allowing the fuel to burn fully and evenly in the combustion chamber.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A bottom-intake oil-fired stove burner includes a furnace shell with an open top. An air inlet is provided at the bottom of the inner wall of the furnace shell. An L-shaped air inlet pipe is provided at the bottom of the furnace shell, communicating with the air inlet. A combustion cylinder, with an open top, is provided at the bottom of the inner wall of the furnace shell, communicating with the air inlet. The height of the combustion cylinder is lower than the height of the furnace shell. A gap is left between the outer wall of the combustion cylinder and the inner wall of the furnace shell. A hollow connecting frame is provided at the bottom of the inner wall of the combustion cylinder, communicating with the air inlet. An oil spraying assembly is provided at the upper end of the connecting frame, extending into the air inlet pipe and protruding from one side of its outer wall. A flame-gathering assembly is detachably connected to the upper end of the combustion cylinder, protruding from and cooperating with the open end of the furnace shell. Fixing holes for installing pulse ignition needles are provided opposite each other at the lower part of one side of the outer wall of the furnace shell and the outer wall of the combustion cylinder.

[0008] By adopting the above technical solution, during use, the pulse ignition needle is first installed through the fixing hole, then the furnace shell is fixed, and then the fuel pipe is connected and fixed to the lower end of the fuel injection assembly. At the same time, the blower is installed on the air inlet of the air inlet pipe, and then the blower is turned on. The air volume generated by the blower is blown into the combustion tube through the air inlet, forming a uniform and stable wind speed. At the same time, the fuel injection assembly atomizes the fuel initially and blows it into the combustion tube. Under the high-speed blowing of the wind, the fuel is atomized again, so that the pulse ignition needle can ignite it. The flame formed by the burning fuel is propelled by the wind and drawn out by the flame-gathering assembly, thus realizing the combustion of the fuel. Since the bottom air intake method is adopted, the airflow, fuel atomization, and propelling will maintain a constant state in the combustion tube, allowing the fuel to burn completely.

[0009] A further feature of this invention is that the fuel injection assembly includes an L-shaped fuel inlet pipe, an atomizing fuel nozzle installed at and connected to the upper end of the fuel inlet pipe, and a fuel supply connector installed at and connected to the lower end of the fuel inlet pipe.

[0010] By adopting the above technical solution, the fuel can be atomized when it is injected into the combustion chamber through the atomizing nozzle, so that the fuel can be fully burned and the pulse ignition needle can be easily ignited.

[0011] A further feature of this invention is that the flame-gathering assembly includes a flame-gathering head, an atomizing chamber located at the bottom of the flame-gathering head and opening upwards, and a plurality of ignition holes extending through the upper end of the outer wall of the flame-gathering head and opening downwards. The ignition holes are located at the edge of the atomizing chamber, and the atomizing chamber and the fuel injection assembly are located on the same axis.

[0012] By adopting the above technical solution, the fuel sprayed through the atomizing injector will collide with the inner wall of the combustion chamber. The force of the impact can atomize the fuel again, which facilitates the complete combustion of the fuel.

[0013] A further feature of this invention is that a cone-shaped flow divider is provided at the upper end of the inner wall of the atomizing chamber.

[0014] By adopting the above technical solution, the fuel entering the atomization chamber can be easily dispersed in all directions, which facilitates the atomization process.

[0015] A further feature of this invention is that the bottom of the flame-gathering head is provided with an atomizing component that communicates with the atomizing chamber. The atomizing component includes a connecting ring, a plurality of through holes that are opened through the outer wall of the connecting ring and are arranged in an array, a fixing plate that is respectively arranged at the upper and lower ends of the connecting ring, and a plurality of through slots that are opened through the fixing plate. The corresponding through slots on the two fixing plates are staggered.

[0016] By adopting the above technical solution, the atomization effect of fuel can be further improved by the cutting force of the wind and the repeated impact of the fuel in the atomizing component, so that the combustion is more complete.

[0017] A further feature of this invention is that an oil baffle ring is provided at the bottom of the inner wall of the combustion cylinder, which is fitted to the edge of the fuel injection assembly, and a gap is left between the outer wall of the oil baffle ring and the inner wall of the combustion cylinder to temporarily store residual fuel.

[0018] By adopting the above technical solution, the oil baffle ring can retain unburned fuel in the combustion chamber before and after use, preventing it from flowing into the air intake pipe. At the same time, it can be burned again when the device is used next time, reducing fuel waste.

[0019] A further feature of this invention is that the upper end of the oil injection assembly is detachably connected to a receiving plate that is open at the upper end and cooperates with it, and the outer wall of the receiving plate is close to the inner wall of the oil baffle ring.

[0020] By adopting the above technical solution, not only can the radial flow of air be changed by the receiving plate, allowing the air to fully fill the entire combustion chamber, but it can also work with the oil baffle ring to prevent fuel from falling directly into the air intake pipe and allow it to be reused.

[0021] In summary, this utility model has the following beneficial effects:

[0022] Firstly, this utility model allows the incoming air to blow from bottom to top, allowing it to fully contact the fuel and further atomize it, while also allowing the fuel to burn fully and evenly in the combustion chamber.

[0023] Secondly, this utility model adopts a bottom air intake method, which can keep the airflow direction, fuel atomization and catalysis in a constant state in the combustion chamber, allowing the fuel to burn completely;

[0024] Thirdly, the oil baffle ring of this utility model can retain unburned fuel in the combustion chamber before and after use, preventing it from flowing into the air intake pipe. At the same time, it can be burned again when the device is used next time, reducing fuel waste.

[0025] Fourthly, the receiving plate of this utility model can not only change the radial flow of air, allowing the air to fill the entire combustion chamber, but also cooperate with the oil baffle ring to prevent fuel from falling directly into the air intake pipe and to allow it to be reused. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 It is mainly used to show the positional connection relationship of each component;

[0028] Figure 3 Primarily used to display the connecting frame and air inlet;

[0029] Figure 4 Primarily used to showcase paint spraying components;

[0030] Figure 5 This is a schematic diagram of the structure of the flame-gathering assembly of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the atomizing component of this utility model.

[0032] In the diagram: 1. Furnace shell; 11. Air inlet; 12. Air inlet pipe; 13. Combustion cylinder; 14. Connecting frame; 2. Oil injection assembly; 21. Oil inlet pipe; 22. Atomizing oil nozzle; 23. Oil supply connector; 24. Oil baffle ring; 25. Receiving plate; 3. Flame-gathering assembly; 31. Flame-gathering head; 32. Atomizing chamber; 33. Ignition hole; 4. Diverter cone; 41. Atomizing assembly; 42. Connecting ring; 43. Through hole; 44. Fixing plate; 45. Through groove; 46. Fixing hole. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Example, refer to Figure 1-6 A bottom-intake oil-fired stove burner includes a furnace shell 1 with an open top. An air inlet 11 is located at the center of the bottom of the inner wall of the furnace shell 1, pointing downwards. An L-shaped air inlet pipe 12 communicating with the air inlet 11 is located at the bottom of the furnace shell 1. A combustion cylinder 13, which communicates with the air inlet 11 and has an open top, is located at the bottom of the inner wall of the furnace shell 1. The height of the combustion cylinder 13 is lower than the height of the furnace shell 1, and a gap is left between the outer wall of the combustion cylinder 13 and the inner wall of the furnace shell 1. 3. At the bottom of the inner wall, at the position of the air inlet 11, there is a hollowed-out connecting frame 14 connected to it. The upper end of the connecting frame 14 is provided with a fuel injection assembly 2 whose lower end extends into the air inlet pipe 12 and extends out of its outer wall. The fuel injection assembly 2 is arranged opposite to the air inlet pipe 12. The fuel injection assembly 2 includes an L-shaped fuel inlet pipe 21, an atomizing fuel nozzle 22 installed on the upper end of the fuel inlet pipe 21 and connected to it, and a fuel supply connector 23 installed on the lower end of the fuel inlet pipe 21 and connected to it.

[0038] At the bottom of the inner wall of the combustion cylinder 13, an oil baffle ring 24 is provided in a concentric circle with the air inlet 11, which is matched with the edge of the oil injection assembly 2. A gap is left between the outer wall of the oil baffle ring 24 and the inner wall of the combustion cylinder 13 to temporarily store residual fuel. The upper end of the oil injection assembly 2 is detachably connected to a receiving plate 25 that matches it and has an open upper end. The outer wall of the receiving plate 25 is close to the inner wall of the oil baffle ring 24. The upper end of the combustion cylinder 13 is detachably connected to a flame-gathering assembly 3 that extends out of the opening end of the furnace shell 1 and matches it. The flame-gathering assembly 3 includes a flame-gathering head 31, an atomizing chamber 32 that is set in the middle of the bottom of the flame-gathering head 31 and opens upward, and several ignition holes 33 that penetrate the upper end of the outer wall of the flame-gathering head 31 and open downward. The ignition holes 33 are opened at the edge of the atomizing chamber 32 and are distributed in a circumferentially evenly spaced manner. The atomizing chamber 32 and the atomizing nozzle 22 are located on the same axis.

[0039] A conical diverter cone 4 is provided at the upper end of the inner wall of the atomizing chamber 32. An atomizing component 41 communicating with the atomizing chamber 32 is provided at the bottom of the flame-gathering head 31. The atomizing component 41 includes a connecting ring 42, several through holes 43 that are opened through the outer wall of the connecting ring 42 and are arranged in an array, two fixing plates 44 that are respectively set at the upper and lower ends of the connecting ring 42, and several through slots 45 that are opened through the fixing plates. The corresponding through slots 45 on the two fixing plates are staggered. A fixing hole 46 for installing a pulse ignition needle is opened at the lower side of one side of the outer wall of the furnace shell 1 and the combustion cylinder 13.

[0040] Usage: When in use, first install the pulse ignition needle through the fixing hole 46, then fix the furnace shell 1 to the stove, then connect and fix the fuel pipe to the fuel supply connector 23 at the lower end of the fuel injection assembly 2, and at the same time install the fan on the air inlet of the air inlet pipe 12, and then let the fan work. The air volume generated by the fan is blown into the combustion cylinder 13 through the air inlet hole 11. Due to the setting of the receiving plate 25, the air blown straight upward will be changed to blow into the combustion cylinder 13 from the bottom edge of the receiving plate 25. The air force can form good contact with the inner wall of the combustion cylinder 13 and completely fill the entire combustion cylinder 13 to form a uniform and stable wind speed. At the same time, the fuel flows along the fuel inlet pipe 21 to the atomizing fuel nozzle 22 on the connecting frame 14 and is sprayed out after initial atomization. The sprayed fuel will be further atomized under the cutting force of the wind and move closer to the flame-gathering assembly 3.

[0041] Since the atomizing chamber 32 at the bottom of the ignition head 31 and the atomizing injector 22 are located on the same axis, when fuel enters the atomizing chamber 32, the flow divider cone 4 will change the direction of the fuel, causing it to impact and atomize against the inner wall of the atomizing chamber 32. Simultaneously, when the airflow is obstructed, it will change its direction and flow towards the ignition port 33. The airflow carries the atomized fuel through the atomizing assembly 41, and through the through slots 45 on the two fixed discs 44 and the through holes 43 on the connecting ring 42, further atomizing the fuel and reducing its viscosity. The size of its atomized particles is designed to facilitate ignition and complete combustion by the pulse ignition needle. The flame formed by the burning fuel is drawn out through the ignition hole 33 by the wind, thereby achieving the combustion of fuel. When using this device, before and after use, the residual fuel in the combustion chamber 13 will remain in the combustion chamber 13 through the cooperation of the oil baffle ring 24 and the receiving plate 25. The cooperation of the two can prevent the fuel from flowing directly into the air inlet pipe 12, and can also allow the residual fuel to be reused in the next use.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that make creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A bottom-intake fuel-fired stove burner head, comprising a stove shell (1) with an opening at the top, characterized in that: An air inlet hole (11) is provided at the bottom of the inner wall of the furnace shell (1). An L-shaped air inlet pipe (12) communicating with the air inlet hole (11) is provided at the bottom of the furnace shell (1). A combustion cylinder (13) communicating with the air inlet hole (11) and having an open top is provided at the bottom of the inner wall of the furnace shell (1). The height of the combustion cylinder (13) is lower than the height of the furnace shell (1). A gap is left between the outer wall of the combustion cylinder (13) and the inner wall of the furnace shell (1). The bottom of the inner wall of the combustion cylinder (13) A connecting frame (14) with a hollow shape is provided at the position of the air inlet (11). An oil spraying assembly (2) is provided at the upper end of the connecting frame (14) extending into the air inlet pipe (12) and extending out of its outer wall. A flame-gathering assembly (3) extending out of the opening end of the furnace shell (1) and cooperating with it is detachably connected to the upper end of the combustion cylinder (13). A fixing hole (46) for installing a pulse ignition needle is provided at the lower side of the outer wall of the furnace shell (1) and the combustion cylinder (13).

2. The bottom-intake fuel-fired stove burner head according to claim 1, characterized in that: The fuel injection assembly (2) includes an L-shaped fuel inlet pipe (21), an atomizing fuel nozzle (22) installed on and connected to the upper end of the fuel inlet pipe (21), and a fuel supply connector (23) installed on and connected to the lower end of the fuel inlet pipe (21).

3. The bottom-intake fuel-fired stove burner head according to claim 1, characterized in that: The flame-gathering assembly (3) includes a flame-gathering head (31), an atomizing chamber (32) at the bottom of the flame-gathering head (31) and opening upwards, and a plurality of ignition holes (33) penetrating the upper end of the outer wall of the flame-gathering head (31) and opening downwards. The ignition holes (33) are opened at the edge of the atomizing chamber (32), and the atomizing chamber (32) and the fuel injection assembly (2) are located on the same axis.

4. The bottom-intake fuel-fired stove burner head according to claim 3, characterized in that: The upper end of the inner wall of the atomizing chamber (32) is provided with a cone-shaped diverter cone (4).

5. The bottom-intake fuel-fired stove burner head according to claim 3, characterized in that: The bottom of the flame-gathering head (31) is provided with an atomizing component (41) that communicates with the atomizing chamber (32). The atomizing component (41) includes a connecting ring (42), a number of through holes (43) that are opened through the outer wall of the connecting ring (42) and are arranged in an array, a fixing plate (44) that are respectively arranged at the upper and lower ends of the connecting ring (42), and a number of through slots (45) that are opened through the fixing plate (44). The corresponding through slots (45) on the two fixing plates (44) are staggered.

6. The bottom-intake fuel-fired stove burner head according to claim 1, characterized in that: A baffle ring (24) is provided at the bottom of the inner wall of the combustion cylinder (13) and at the edge of the fuel injection assembly (2). A gap is left between the outer wall of the baffle ring (24) and the inner wall of the combustion cylinder (13) to temporarily store residual fuel.

7. A bottom-intake fuel-fired stove burner head according to claim 6, characterized in that: The upper end of the oil injection assembly (2) is detachably connected to a receiving plate (25) that is open at the upper end and cooperates with it. The outer wall of the receiving plate (25) is close to the inner wall of the oil baffle ring (24).

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