Liquid fuel self-flow vaporization combustion device

Abstract

The utility model discloses a liquid fuel self-flowing vaporizing combustion device which comprises a lower seat, an upper seat installed in the lower seat and an air inlet pipe connected with the lower seat, the lower seat comprises a lower seat shell, the upper seat comprises an upper seat shell, a plurality of air inlet holes are formed in the surface of the upper seat shell, and the top of the upper seat shell is bent outwards and extends. The outer side of the extending position is connected with the top of the lower seat shell, the upper seat shell and the lower seat shell jointly penetrate through the heating ignition device and the oil supply assembly, the oil distribution cap is arranged on the oil supply assembly, the sintering felt is arranged at the top of the oil supply assembly, the oil distribution cap is arranged at the upper end of the sintering felt, and the heating ignition device is tightly connected with the sintering felt. The combustion device has the advantages that the silicon nitride ignition plug and the sintering felt are in contact and combined use, and the unique water absorption and high temperature resistance characteristics of the sintering felt are well utilized. An ignition plug is adopted for ignition, self-flow oil inlet is adopted for oil inlet, an oil pump is not needed, noise is reduced, an ignition needle does not need to be independently installed, energy consumption is reduced, cost is saved, and the maintenance rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of commercial or household kitchen stove technology, specifically to a liquid fuel self-flowing vaporization combustion device. Background Technology

[0002] Traditional liquid fuel combustion devices often suffer from incomplete fuel vaporization and uneven air distribution, resulting in low combustion efficiency, easy carbon buildup, or unstable flames. Existing technologies sometimes rely on external pressure fuel supply, complex atomization structures, or electric heating to achieve fuel vaporization. These methods suffer from high energy consumption, slow heating, high noise, high cost, and difficult maintenance. Furthermore, incomplete combustion leads to excessive carbon monoxide emissions, failing to meet 3C standards. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a combustion device based on gravity-fed oil supply, air distribution and diversion, and open vaporization of sintered felt, achieving high-efficiency combustion through a simplified structure.

[0004] The technical solution is as follows: a liquid fuel self-flowing vaporization combustion device, including a lower seat, an upper seat installed inside the lower seat, and an air inlet pipe connected to the lower seat. The lower seat includes a lower seat shell, and the upper seat includes an upper seat shell. The surface of the upper seat shell is provided with several air inlet holes. The top of the upper seat shell is bent outward and extended, and the outer side of the extension is connected to the top of the lower seat shell. The upper seat shell and the lower seat shell are jointly provided with a heating and ignition device and an oil supply assembly. A sintered felt is provided on the upper part of the oil supply assembly. An oil outlet with internal and external communication is provided on the oil separator cap. The heating and ignition device is tightly connected to the sintered felt.

[0005] Based on the above technical solution, further optimization is made. The lower seat housing includes a lower seat side wall and a lower seat base plate disposed at its lower part. The upper seat housing includes an upper seat side wall and an upper seat base plate disposed at its lower part. A combustion chamber is formed at the upper part of the upper seat base plate. The fuel supply component passes through the upper seat base plate and the lower seat base plate and is disposed at the center position of the upper and lower seats. The heating and ignition device is an ignition plug, which passes through the upper seat base plate and the lower seat base plate.

[0006] Based on the above technical solution, a further optimization is made: an air distributor is provided between the upper seat and the lower seat. The air distributor is used to evenly distribute the airflow input by the air inlet pipe. The air inlet pipe is connected to the bottom plate of the lower seat, or the air inlet pipe is connected to the lower side wall of the lower seat at the bottom of the air distributor. The oil supply component and the ignition plug respectively pass through the air distributor.

[0007] Based on the above technical solution, the air distributor is further optimized by including an air distribution plate, with several strip-shaped air distribution channels evenly distributed around the air distribution plate. A guide plate is provided at the edge of the air distribution channel and the guide plate is inclined in the circumferential direction. The air distribution plate is fixed on the inner wall of the upper housing.

[0008] Based on the above technical solution, a fixed tube is vertically installed on the upper base plate. The inside of the fixed tube is connected to the combustion chamber. The lower end of the fixed tube is provided with an internal thread. The ignition plug passes through the lower base plate and is connected to the fixed tube by the thread. The heating end of the ignition plug extends into the combustion chamber.

[0009] Based on the above technical solution, further optimization is made, wherein the sintered felt is horizontally covered on the upper end of the oil supply assembly and keeps in contact with the heating and ignition end of the ignition plug.

[0010] Based on the above technical solution, the oil supply component is further optimized as follows: the oil supply component seat includes an oil supply pipe connected to the upper part of the oil supply component seat and an oil distribution cap connected to the upper part of the oil supply pipe. The oil supply component seat is located at the lower part of the lower seat base plate. The oil supply pipe passes through the lower seat base plate and the upper seat base plate in sequence and extends into the combustion chamber. The sintered felt is installed at the upper end of the oil supply pipe, and an oil distribution cap is provided on the sintered felt.

[0011] Based on the above technical solution, the upper end of the oil supply pipe is fixed to the upper base plate by a threaded connection, and the center of the sintered felt is provided with an installation hole, in which the oil distribution cap is installed by a thread or a clamping structure.

[0012] Based on the above technical solution, further optimization is made, wherein the oil inlet is located on the outside or bottom of the oil supply component seat, and an oil inlet pipe is provided inside the oil inlet.

[0013] Based on the above technical solution, further optimization is made by installing an oil distribution cap on the upper part of the oil supply component. The oil distribution cap includes an oil cap and a flange arranged around the bottom of the oil cap. Multiple oil outlet holes are provided around the oil cap, and the flange presses against the upper part of the sintered felt.

[0014] Based on the above technical solution, further optimization is made. The air inlet includes an upper air inlet and a side air inlet. The upper air inlet is evenly distributed on the surface of the upper housing that bends outward and extends outward. The side air inlet is evenly distributed on the surface of the side wall of the upper housing.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This combustion device utilizes a combination of an ignition plug and sintered felt, effectively taking advantage of the unique water absorption and high-temperature resistance properties of the sintered felt. The sintered felt is made of sintered metal fibers, exhibiting rapid heat conduction, withstanding temperatures above 1200℃, and boasting a long lifespan suitable for extended commercial operation. Its excellent water absorption allows it to quickly absorb and store liquid fuel flowing from the separator cap. The ignition plug, made of silicon nitride, operates on either 12V or 24V DC power, ensuring high safety and high instantaneous power, reaching 1000℃ in a short time to rapidly heat the sintered felt, vaporizing and igniting the liquid fuel stored within. After ignition, the ignition plug closes, achieving a cycle of gravity flow, vaporization, and combustion. The system features a well-matched liquid flow rate and blower air flow rate, perfectly adjusting the oil-gas ratio for complete combustion. The air intake utilizes a distributor, ensuring stable and uniform airflow. Oil is supplied via gravity flow, with the liquid fuel tank positioned high, allowing fuel to flow out by gravity from the connected fuel supply assembly's distributor cap. This eliminates the need for an oil pump, reducing noise and eliminating the need for a separate ignition needle, thus lowering energy consumption, saving costs, and reducing maintenance. The system is compatible with various liquid fuels such as ethylene glycol, white oil, liquid wax, and methanol, demonstrating broad fuel compatibility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the entire utility model;

[0018] Figure 2 This is a sectional perspective view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This is an exploded view of the present invention;

[0021] Figure 5 This is a utility model Figure 3 AA section view;

[0022] Figure 6 This is a perspective view of the sintered felt and oil supply assembly of this utility model;

[0023] Figure 7 This is a perspective view of the air distributor of this utility model.

[0024] Among them, 1. Upper seat, 11. Upper seat base plate, 12. Side air hole, 13. Upper air hole, 14. Fixing tube;

[0025] 2. Lower seat, 21. Lower seat bottom plate;

[0026] 3. Air intake pipe;

[0027] 4. Sintered felt; 41. Mounting holes;

[0028] 5. Oil supply assembly; 51. Oil supply assembly base; 52. Oil supply pipe;

[0029] 6. Oil inlet pipe;

[0030] 7. Ignition plug;

[0031] 8. Air distributor; 81. Air duct; 82. Deflector plate;

[0032] 9. Oil cap; 90. Oil outlet; 91. Oil cap; 92. Flange;

[0033] 10. Combustion chamber. Detailed Implementation

[0034] 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. Those skilled in the art can make appropriate adjustments without departing from the core idea of ​​the present utility model.

[0035] 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.

[0036] 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. Example

[0037] like Figures 1 to 7As shown, this embodiment provides a liquid fuel self-flowing vaporization combustion device, including a lower seat 2, an upper seat 1 installed inside the lower seat 2, and an air inlet pipe 3 connected to the lower seat 2. The lower seat 2 includes a lower seat shell (composed of a lower seat side wall and a lower lower seat base plate 21), and the upper seat 1 includes an upper seat shell (composed of an upper seat side wall and a lower upper seat base plate 11). The top of the upper seat shell bends outward and extends to connect with the top of the lower seat shell, forming a sealed cavity. The surface of the upper seat shell is provided with evenly distributed side air inlets 12 and upper air inlets 13 for introducing air.

[0038] The fuel supply assembly 5 passes through the upper base plate 11 and the lower base plate 21, and is located at the center of the upper base 1 and the lower base 2. The fuel supply assembly 5 includes a fuel supply assembly seat 51 and a fuel supply pipe 52. The fuel supply assembly seat 51 is fixed below the lower base plate 21. The fuel supply pipe 52 passes through the lower base plate 21 and the upper base plate 11 and extends into the combustion chamber 10. The upper end of the fuel supply pipe 52 is threaded, and it is fixed in a hole in the upper base 1 through the thread. A sintered felt 4 is installed at its top end. The sintered felt 4 is made of sintered metal fibers, horizontally covering the top end of the fuel supply pipe 52, and in close contact with the heating end of the ignition plug 7. The fuel inlet is located outside the fuel supply assembly seat 51 and is connected to an external fuel tank (not shown in the figure) through a fuel inlet pipe 6. Fuel enters the fuel supply assembly 5 by gravity flow.

[0039] The ignition plug 7 is made of silicon nitride and penetrates the lower base plate 21, being threaded into the fixing tube 14 of the upper base plate 11. Its heating end extends into the combustion chamber 10 and contacts the sintered felt 4. The ignition plug 7 is powered by 12V or 24V DC and can be heated to 1000℃ in a short time, causing the liquid fuel absorbed by the sintered felt 4 to vaporize and ignite rapidly.

[0040] The air distributor 8 is installed between the upper seat 1 and the lower seat 2, and includes an air distribution plate and strip-shaped air distribution channels 81 evenly distributed around the air distribution plate. The edges of the air distribution channels 81 are provided with guide plates 82 that are inclined in the circumferential direction. The air distributor 8 is connected to an external air source through the air inlet pipe 3, and distributes the airflow evenly to the combustion chamber 10 to ensure that the air and the vaporized fuel are fully mixed.

[0041] Based on the above embodiments, the structure of the air distributor 8 is further optimized. For example... Figure 6 , Figure 7 As shown, the guide vane 82 of the air distributor 8 adopts a spiral tilting design to improve the airflow rotation effect, enhance the mixing efficiency of fuel and air, and make combustion more complete.

[0042] like Figure 5 As shown, the top end of the oil supply pipe 52 is fixed to the sintered felt 4 by threads. The sintered felt 4 has a mounting hole 41 in the center with internal threads, and the top end of the oil supply pipe 52 has external threads for easy replacement or maintenance. At the same time, the oil inlet is located at the bottom of the oil supply assembly seat 51 to reduce pipeline complexity.

[0043] like Figure 3-5 As shown, an oil distributor cap 9 is installed at the top of the oil supply pipe 52. The oil distributor cap 9 includes an oil cap 91 and a flange 92 located around the bottom of the oil cap. Multiple oil outlet holes 90 are provided around the oil cap 91. The flange 92 presses against the upper part of the sintered felt 4. The oil distributor cap 9 evenly disperses the oil, which flows from the upper part of the flange 92 onto the sintered felt 4. During large-volume oil supply, the oil distributor cap 9 prevents liquid fuel from spraying outwards. When multiple layers of sintered felt 4 are provided, the ignition plug 7 only penetrates the bottommost sintered felt. The mounting holes 41 of the upper sintered felt are provided with internal threads, which are fixedly connected to the external threads on the upper part of the oil supply pipe 52. The mounting holes 41 of the lower sintered felt may not have internal threads, and the oil distributor cap 9 presses against the topmost sintered felt. The number of sintered felt layers can be arbitrarily set according to combustion power and vaporization requirements.

[0044] Workflow:

[0045] 1. Fuel supply: Liquid fuel flows from the high-level fuel tank into the oil supply pipe 52 via the oil inlet pipe 6 by gravity. The oil supply pipe 52 delivers the fuel to the oil distribution cap 9, and then flows to the surface of the sintered felt 4 through the oil outlet 90.

[0046] 2. Fuel absorption and vaporization: The sintered felt 4 rapidly absorbs and stores fuel using its porous structure and capillary action; the ignition plug 7 heats up rapidly after being energized, heating the sintered felt 4 at the bottom until the fuel vaporizes and ignites.

[0047] 3. Air distribution: External airflow enters the air distributor 8 through the air inlet pipe 3, and is evenly distributed to the combustion chamber 10 through the air distribution channel 81 and the guide plate 82.

[0048] 4. Ignition and Combustion: After the vaporized fuel is mixed with uniform air, it is ignited by the igniter 7 and burns completely in the combustion chamber 10. The flame is stable and there is no carbon buildup. After the igniter 7 ignites the liquid fuel, the power can be cut off. The heat generated by the combustion of the sintered felt 4 itself vaporizes the absorbed liquid and continues to burn.

[0049] Applications of sintered felt characteristics:

[0050] Water absorption and vaporization: The sintered felt 4 primarily relies on its porous structure, surface tension, and capillary action. Sintered felt 4 is typically formed from fibrous materials through high-temperature processing, possessing numerous micropores that provide storage space for liquid fuel. When liquid fuel comes into contact with sintered felt 4, the surface tension of the liquid fuel promotes water penetration into these pores, thus achieving water storage. Capillary action refers to the phenomenon of wetting liquid rising in a narrow tube. Due to the porous structure and hydrophilic material of sintered felt 4, water molecules spontaneously wet into its interior, resulting in a strong water absorption capacity. Capillary action causes liquid molecules to rise along the small pores inside sintered felt 4 until an equilibrium state is reached. Sintered felt 4 adsorbs fuel through its porous structure; after heating by the ignition plug 7, the fuel rapidly vaporizes and ignites, avoiding the carbon buildup problem caused by direct combustion of liquid fuel.

[0051] High temperature resistance and rapid response: Sintered felt 4 can withstand temperatures above 1200℃, has low thermal inertia, and quickly transfers heat to the fuel after heating, shortening the ignition time.

[0052] Strong resistance to thermal shock: Sintered felt can remain stable under extreme temperature changes and is not easily deformed or damaged.

[0053] Complete radiant combustion: Sintered felt can radiate heat completely during combustion, improving energy efficiency.

[0054] Performance verification: Tests have shown that this device significantly improves combustion efficiency, reduces carbon monoxide emissions to below national standards, lowers noise levels to below 70 dB, eliminates the need for an oil pump, and greatly reduces energy consumption.

[0055] Any unmentioned structures and connections are common knowledge.

[0056] 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 self-flow vaporization combustion device, comprising a lower seat, an upper seat installed inside the lower seat, and an air inlet pipe connected with the lower seat, characterized in that: The lower seat comprises a lower seat shell, the upper seat comprises an upper seat shell, the surface of the upper seat shell is provided with a plurality of air inlet holes, the top of the upper seat shell is bent and extended to the outside, the outside of the extension is connected with the top of the lower seat shell, the upper seat shell and the lower seat shell are provided with a heating ignition device and an oil supply assembly, the surface of the oil supply assembly is provided with an oil inlet hole which is communicated with the inside and the outside, the top of the oil supply assembly is provided with a oil distribution cap, the upper part of the oil supply assembly is provided with at least one layer of sintered felt, the oil distribution cap is provided with an oil outlet hole which is communicated with the inside and the outside, and the heating ignition device is closely connected with the sintered felt.

2. A liquid fuel auto-vaporizing combustion apparatus according to claim 1, wherein: The lower seat shell comprises a lower seat side wall and a lower seat bottom plate arranged at the lower part of the lower seat side wall, the upper seat shell comprises an upper seat side wall and an upper seat bottom plate arranged at the lower part of the upper seat side wall, the upper part of the upper seat bottom plate forms a combustion chamber, the oil supply assembly penetrates the upper seat bottom plate and the lower seat bottom plate at the same time and is arranged at the central position of the upper seat and the lower seat, and the heating ignition device is an ignition plug which penetrates the upper seat bottom plate and the lower seat bottom plate.

3. A liquid fuel self-flowing vaporizing combustion device according to claim 2, characterized in that: A wind distributor is arranged between the upper seat and the lower seat, the wind distributor is used for uniformly distributing the airflow input by an air inlet pipe, the air inlet pipe is connected with the lower seat bottom plate or the air inlet pipe is connected with the lower seat side wall at the lower part of the wind distributor, and the oil supply assembly and the ignition plug penetrate the wind distributor respectively.

4. A liquid fuel self-flowing vaporizing combustion device according to claim 3, characterized in that: The wind distributor comprises a wind distribution plate, a plurality of strip-shaped air distribution channels are uniformly distributed around the wind distribution plate, a flow guide plate is arranged at the edge of the air distribution channel, the flow guide plate is inclined to the circumferential direction, and the wind distribution plate is fixed on the inner wall of the upper seat shell.

5. A liquid fuel self-flowing vaporizing combustion device according to claim 2, characterized in that: A fixed tube is vertically arranged on the upper seat bottom plate, the inside of the fixed tube is communicated with the combustion chamber, the lower end of the fixed tube is provided with an internal thread, the ignition plug is threadedly connected in the fixed tube through the lower seat bottom plate, and the heating end of the ignition plug extends into the combustion chamber.

6. A liquid fuel self-flowing vaporizing combustion device according to claim 2, characterized in that: The sintered felt is horizontally arranged at the upper end of the oil supply assembly, the sintered felt is arranged with one or a plurality of sintered felts arranged in the top and bottom, when the sintered felt is arranged with one, the ignition plug penetrates the sintered felt, and when the sintered felt is arranged with a plurality of sintered felts, the ignition plug penetrates the sintered felt arranged at the bottom, and the sintered felt arranged at the top is closely contacted with the lower part of the oil distribution cap.

7. A liquid fuel self-flowing vaporizing combustion device according to claim 2, characterized in that: The oil supply assembly comprises an oil supply assembly seat, an oil supply pipe connected at the upper part of the oil supply assembly seat and an oil distribution cap connected at the upper part of the oil supply pipe, the oil supply assembly seat is located at the lower part of the lower seat bottom plate, the oil inlet hole is located at the outside or the bottom of the oil supply assembly seat, an oil inlet pipe is arranged in the oil inlet hole, the oil supply pipe penetrates the lower seat bottom plate and the upper seat bottom plate in sequence and extends into the combustion chamber, and the sintered felt is arranged on the oil supply pipe.

8. A liquid fuel self-flowing vaporizing combustion device according to claim 7, characterized in that: The upper end of the oil supply pipe is threadedly connected and fixed on the upper seat bottom plate, and the center of the sintered felt is provided with a mounting hole in which the oil supply pipe is arranged.

9. A liquid fuel self-flowing vaporizing combustion apparatus according to claim 1, characterized in that: The oil distribution cap comprises an oil cover and a flange arranged around the bottom of the oil cover, a plurality of oil outlet holes are uniformly distributed around the oil cover, and the oil distribution cap is fastened on the top end of the oil supply pipe in the form of thread connection.

10. A liquid fuel self-flowing vaporizing combustion apparatus according to claim 2, characterized in that: The air inlet holes include upper air inlet holes and side air inlet holes, the upper air inlet holes are uniformly distributed on the top of the upper seat shell and are bent and extended outward, and the side air inlet holes are uniformly distributed on the surface of the side wall of the upper seat.

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