Oil vaporization and combustion structure of liquid fuel combustion body
By combining the inner and outer double-layer vaporization combustion mesh and the cyclone air inlet, the problem of high-pressure atomization in liquid fuel stoves is solved, achieving a larger oil film combustion area and a more efficient combustion effect, while simplifying the processing difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGXINRAN NEW ENERGY GROUP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-05
AI Technical Summary
Existing liquid fuel stoves require high-pressure atomizing nozzles for combustion, which leads to heat energy waste, and the atomizing combustion mesh area is limited and the manufacturing process is complex.
It adopts an inner and outer double-layer vaporization combustion mesh structure, including iron-plated aluminum wire mesh and stainless steel wire cloth, which, combined with the cyclone air inlet, form a large-volume vaporization combustion chamber. Liquid fuel is dispersed under the action of the cyclone and forms an oil film for combustion, which is fixed to the vaporization combustion cylinder by spot welding.
It achieves complete vaporization and combustion of liquid fuels without the need for high-pressure atomizing nozzles, improving combustion efficiency and simplifying the processing.
Smart Images
Figure CN224327187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stoves, and in particular to an oil vaporization combustion structure for a liquid fuel burner. Background Technology
[0002] Currently, liquid fuel stoves primarily use electronic fuel injection systems for fuel supply. These are mainly used in commercial high-powered stoves for Chinese stir-frying and large wok cooking. They are also used in other kitchen appliances such as steamers, braising pots, cooking ovens, and clay pot stoves, as well as in heating products. These systems employ pulse fuel pumps to vaporize the fuel. The combustion process in electronic fuel injection stoves requires the liquid fuel to be pressurized to 12 kg to ensure that the liquid fuel sprayed from the atomizing nozzle is in a mist form. This mist-like liquid fuel then mixes with the air pumped in by the blower within the stove's air chamber for combustion. Electronic injection accelerates the flow of the atomized liquid, thus wasting heat energy.
[0003] Therefore, our company has designed a liquid fuel vaporization combustion chamber (see patent number CN202420362792.6). Through the structural design of the liquid fuel combustion body's oil inlet vaporization combustion structure, the vaporization combustion chamber is formed by using a vaporization combustion cylinder and a cyclone air inlet cylinder. The liquid fuel is mixed with the spiral air sprayed from the cyclone air in the annular oil passage to achieve its full atomization combustion. The high temperature generated by the continuous combustion of the liquid fuel in the vaporization combustion chamber is used to fully vaporize and burn the newly injected liquid fuel, which fundamentally changes its vaporization combustion mode and can achieve the vaporization combustion conditions of liquid fuel without the need for a high-pressure atomizing nozzle.
[0004] The combustion gases of this generation of products have the following shortcomings:
[0005] 1. Since liquid fuel is burned by forming an oil film attached to the atomizing combustion net, and the atomizing combustion net only covers the annular oil path, the combustion area of the formed oil film is limited.
[0006] 2. Since the base, vaporization combustion cylinder, and cyclone air inlet are all integrally cast, the annular oil passage section is difficult to cast and requires grinding after casting, making the process quite troublesome.
[0007] Therefore, there is an urgent need to further upgrade and optimize the product structure. Utility Model Content
[0008] The purpose of this invention is to provide a liquid fuel combustor structure that solves the above-mentioned problems by introducing an oil vaporization combustion structure.
[0009] To achieve the above objectives, the technical solution adopted by this utility model is: an oil inlet vaporization combustion structure for a liquid fuel combustor, comprising a base, a vaporization combustion cylinder, and a cyclone air inlet cylinder. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder and the outer wall of the cyclone air inlet cylinder. An oil inlet communicating with the vaporization combustion chamber is provided on the vaporization combustion cylinder. An atomizing combustion mesh is provided in the outlet of the oil inlet. A vaporization combustion adhesive mesh is provided in the vaporization combustion chamber. The vaporization combustion adhesive mesh is tightly attached to the inner wall of the vaporization combustion cylinder. A through hole is provided on the vaporization combustion adhesive mesh relative to the oil inlet to facilitate the spraying of liquid fuel.
[0010] Preferably, the vaporization combustion adhesive mesh has a double-layer structure, with the inner layer being an iron-aluminum wire mesh and the outer layer being a stainless steel wire cloth, and the outer layer pore size of the vaporization combustion adhesive mesh being smaller than that of the inner layer pore size.
[0011] Preferably, an annular groove is formed on the bottom base of the vaporization combustion chamber to limit the vaporization combustion adhesive net, and the lower end of the vaporization combustion adhesive net is engaged in the annular groove.
[0012] Preferably, the upper and lower ends of the vaporization combustion mesh are fixed to the vaporization combustion cylinder by spot welding.
[0013] Preferably, the vaporization combustion adhesive mesh has an annular structure, and its annular sidewalls are straight, wavy, or rectangular.
[0014] Preferably, the annular vaporization combustion adhesive net has an opening slit on its sidewall.
[0015] Preferably, the straight-walled vaporization combustion adhesive net is annular in shape, with its sidewalls being annular cylindrical structures.
[0016] Preferably, the wave-shaped vaporization combustion adhesive mesh is annular in shape, with its sidewall cross-section being undulating and wave-like, and one section being a straight wall structure that is tightly attached to the inner sidewall of the vaporization combustion cylinder, with the through holes being opened on the straight wall structure.
[0017] Preferably, the rectangular vaporization combustion adhesive mesh is annular in shape, and the cross-section of its sidewall is undulating rectangular wave-shaped, with one section being a straight wall structure that is tightly attached to the inner sidewall of the vaporization combustion cylinder, and the through hole is opened on the straight wall structure.
[0018] Preferably, the vaporization combustion adhesive net is a cylindrical, enclosed cover structure, the outer diameter of the vaporization combustion adhesive net is the same as the inner diameter of the vaporization combustion cylinder, and an air outlet is provided on the top surface of the vaporization combustion adhesive net.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] (1) The atomizing combustion net inside the oil inlet of this utility model meets the primary ignition conditions of liquid fuel. After successful ignition, the liquid fuel is directly injected into the vaporization combustion chamber. Due to the large volume of the vaporization combustion chamber, the liquid fuel can be dispersed more widely under the action of cyclone. The liquid fuel that is not completely vaporized will be thrown onto the vaporization combustion sticking net and form an oil film for combustion. The area of the vaporization combustion sticking net is larger than that of the annular combustion net, making it easier to disperse and form an oil film, which is beneficial to the vaporization combustion of liquid fuel.
[0021] (2) The vaporization combustion adhesive of this utility model is a double-layer vaporization combustion adhesive structure with an inner layer of iron-aluminum wire mesh and an outer layer of stainless steel wire cloth. The iron-aluminum wire mesh has good high temperature resistance, and the stainless steel wire cloth can be attached to the outer surface of the iron-aluminum wire mesh to form a wire mesh structure with very small porosity. Through the above-mentioned double-layer structure, liquid fuel can be better dispersed and vaporized, and it can adapt to the high temperature environment in the vaporization combustion chamber. Attached Figure Description
[0022] Figure 1 This is a diagram illustrating the internal structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the AA cross-sectional structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the straight-walled vaporization combustion adhesive mesh of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of the wave-shaped vaporization combustion adhesive mesh of this utility model;
[0026] Figure 5 This is a schematic diagram of the rectangular vaporization combustion adhesive mesh of this utility model;
[0027] Figure 6 This is a schematic diagram of the structure of the wrap-around vaporization combustion adhesive net of this utility model;
[0028] Figure 7 This is a schematic diagram of the structure of a combustion body in the prior art.
[0029] In the diagram: 1. Base; 2. Vaporization combustion cylinder; 3. Cyclone air inlet; 4. Oil passage; 5. Atomizing combustion mesh; 6. Oil inlet; 7. Vaporization combustion adhesive mesh; 71. Inner layer; 72. Outer layer; 73. Opening slit; 74. Air outlet; 8. Through hole; 9. Annular groove; 10. Oil supply pipe; 11. Ignition plug. Detailed Implementation
[0030] The existing liquid fuel combustor's fuel vaporization combustion structure consists of a base 1, a vaporization combustion cylinder 2, a cyclone air inlet cylinder 3, an oil passage 4, and an atomizing combustion mesh 5. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder 2 and the outer wall of the cyclone air inlet cylinder 3. (See [reference]). Figure 7 .
[0031] The present invention will be further described below: A liquid fuel combustion body fuel vaporization combustion structure, see [link to relevant documentation]. Figure 1 and Figure 2 The device includes a base 1, a vaporization combustion cylinder 2, and a cyclone air inlet cylinder 3. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder 2 and the outer wall of the cyclone air inlet cylinder 3. An oil inlet 6 communicating with the vaporization combustion chamber is provided on the vaporization combustion cylinder 2. An atomizing combustion mesh 5 is provided in the outlet of the oil inlet 6. A vaporization combustion sticking mesh 7 is provided in the vaporization combustion chamber. The vaporization combustion sticking mesh 7 is closely attached to the inner wall of the vaporization combustion cylinder 2. A through hole 8 is provided on the vaporization combustion sticking mesh 7 relative to the oil inlet 6 to facilitate the spraying of liquid fuel. The oil inlet vaporization combustion structure of this utility model has an atomizing combustion net 5 installed in the outlet of the oil inlet 6. Since the required oil supply during the ignition stage is small, when ignition is supplied through the oil supply pipe 10, the atomizing combustion net 5 in the oil inlet 6 atomizes the liquid fuel and meets the ignition requirements. The ignition plug 11 then ignites the fuel. After successful ignition, the oil supply pipe 10 gradually increases the oil supply. At this time, the atomizing combustion net 5 only plays a primary dispersion role; the liquid fuel is directly injected into the vaporization combustion chamber. The spiral cyclone ejected from the cyclone intake pipe 3 splits and vaporizes the liquid fuel, and the heat generated by the primary ignition combustion achieves the combustion conditions. During the splitting and vaporization process of the spiral cyclone, slightly larger liquid fuel particles are directly thrown onto the vaporization combustion sticky net 7 by the cyclone, dispersing and forming an oil film on the vaporization combustion sticky net 7. Combined with the high temperature generated by the primary ignition combustion, this ensures that the liquid fuel is fully vaporized and burned. Compared to the existing annular combustion net, the atomizing combustion net 5 inside the oil inlet 6 meets the primary ignition conditions for liquid fuel. The liquid fuel is no longer dispersed in the oil passage 4, but is directly injected into the vaporization combustion chamber through the through hole 8. The vaporization combustion chamber has a larger volume, and the liquid fuel can be dispersed more widely under the action of cyclone. The incompletely vaporized liquid fuel will be thrown onto the vaporization combustion sticky net 7 and form an oil film for combustion. The area of the vaporization combustion sticky net 7 is larger than that of the annular combustion net, making it easier to disperse and form an oil film, which is beneficial to the vaporization combustion of liquid fuel.
[0032] The vaporization combustion mesh 7 can be a single-layer high-temperature resistant combustion mesh or a multi-layer structure. Through testing and comparison, as the preferred solution, the vaporization combustion mesh 7 of this utility model adopts a double-layer vaporization combustion mesh 7. The vaporization combustion mesh 7 has an inner and outer double-layer structure. Its inner layer 71 is made of iron-aluminum wire mesh. Iron-aluminum wire mesh has good high-temperature resistance and is therefore used as the inner layer 71. Its outer layer 72 is made of stainless steel wire cloth. The stainless steel wire cloth can be attached to the outer surface of the iron-aluminum wire mesh to form a wire mesh structure with very low porosity. Therefore, the pore size of the outer layer 72 of the vaporization combustion mesh 7 is smaller than that of the inner layer 71. Through the above-mentioned inner and outer double-layer structure of the vaporization combustion mesh 7, better dispersion and vaporization combustion of liquid fuel can be achieved, and it can adapt to the high-temperature environment in the vaporization combustion chamber.
[0033] In order to achieve the fixed installation of the vaporization combustion sticky net 7 in the vaporization combustion chamber, an annular groove 9 is formed on the bottom base 1 of the vaporization combustion chamber to limit the vaporization combustion sticky net 7. The lower end of the vaporization combustion sticky net 7 is engaged in the annular groove 9. The opening of the annular groove 9 realizes the limited installation of the vaporization combustion sticky net 7.
[0034] To achieve a more stable installation and fixation of the vaporization combustion mesh 7 within the combustion body, the upper and lower ends of the vaporization combustion mesh 7 can be spot-welded to the vaporization combustion cylinder 2.
[0035] To achieve better dispersion of liquid fuel on the vaporization combustion mesh 7 for vaporization combustion, this invention optimizes the structure of the vaporization combustion mesh 7 based on Embodiment 1. The vaporization combustion mesh 7 has a ring structure, and its ring sidewalls are straight, wavy, or rectangular, as detailed in Embodiments 2 to 4.
[0036] Example 2: The straight-walled vaporization combustion adhesive mesh 7 is generally annular, with its sidewalls forming annular cylindrical structures. (See [reference]). Figure 3 This is the conventional structure of the vaporization combustion adhesive net 7. It can be used simply by cutting and bending the vaporization combustion adhesive net 7 into a ring shape. It is easy to process and convenient to use.
[0037] Example 3: The wave-shaped vaporization combustion adhesive mesh 7 is generally annular, and the cross-section of its sidewalls is undulating and wave-like. (See [reference]). Figure 4The wavy, undulating structure increases the oil film dispersion area, resulting in a wider combustion area for liquid fuel on the vaporization combustion mesh 7 and better combustion efficiency compared to the straight-wall type. During manufacturing, the vaporization combustion mesh 7 is cut and shaped into a wavy, undulating structure. Since the oil inlet 6 enters the vaporization combustion chamber tangentially, to prevent the injected oil from directly spraying between the vaporization combustion mesh 7 and the vaporization combustion cylinder 2, a section of the vaporization combustion mesh 7 is designed as a straight-wall structure tightly attached to the inner wall of the vaporization combustion cylinder 2. The through hole 8 is opened on the straight-wall structure to prevent the undulating structure from affecting the oil injection.
[0038] Example 4: The rectangular vaporization combustion adhesive mesh 7 is generally annular, and the cross-section of its sidewalls is an undulating rectangular wave shape. (See [reference]). Figure 5 The rectangular wavy undulating structure increases the oil film dispersion area, resulting in a wider combustion area for liquid fuel on the vaporization combustion mesh 7 and better combustion efficiency compared to the straight-wall type. During manufacturing, the vaporization combustion mesh 7 is cut and shaped by pressing and folding to form a rectangular undulating structure. Since the oil inlet 6 enters the vaporization combustion chamber tangentially, to prevent the injected oil from directly spraying between the vaporization combustion mesh 7 and the vaporization combustion cylinder 2, a section of the vaporization combustion mesh 7 is designed as a straight-wall structure tightly attached to the inner wall of the vaporization combustion cylinder 2. The through hole 8 is opened on the straight-wall structure to avoid the undulating structure affecting the oil injection.
[0039] Since the annular vaporization combustion adhesive net 7 is obtained by cutting, after being bent into a ring, an opening slit 73 is left on the side wall. The opening slit 73 can be retained so that the annular vaporization combustion adhesive net 7 has a certain elastic deformation ability, which is conducive to the annular vaporization combustion adhesive net 7 adhering tightly to the inner side wall of the vaporization combustion cylinder 2.
[0040] Example 5: To achieve better dispersion of liquid fuel on the vaporization combustion mesh 7 for vaporization combustion, this invention, based on Example 1, designs the vaporization combustion mesh 7 as a cylindrical, enclosed cover structure. See [link to example 1]. Figure 6 The outer diameter of the vaporization combustion sticky net is the same as the inner diameter of the vaporization combustion cylinder 2. After the vaporization combustion sticky net 7 is placed in, it can wrap the vaporization combustion chamber and form a cover structure with better heat collection effect, which is conducive to the high-temperature vaporization of liquid fuel in the vaporization combustion chamber. The top surface of the vaporization combustion sticky net 7 is provided with an air outlet 74, and the heat generated by vaporization combustion is discharged through the air outlet 74.
[0041] The above provides a detailed description of the fuel inlet vaporization combustion structure of the liquid fuel combustor provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, based on the idea of this utility model, there will be changes in the specific implementation and application scope. Changes and improvements to this utility model are possible without exceeding the concept and scope specified in the appended claims. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A liquid fuel combustion structure for vaporization combustion, comprising a base, a vaporization combustion cylinder, and a cyclone intake cylinder, wherein a vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder and the outer wall of the cyclone intake cylinder, and an oil inlet communicating with the vaporization combustion chamber is provided on the vaporization combustion cylinder, characterized in that: An atomizing combustion mesh is provided inside the outlet of the oil inlet, and a vaporizing combustion sticking mesh is provided inside the vaporizing combustion chamber. The vaporizing combustion sticking mesh is closely attached to the inner wall of the vaporizing combustion cylinder, and a through hole is provided on the vaporizing combustion sticking mesh relative to the oil inlet to facilitate the spraying of liquid fuel.
2. The liquid fuel combustion structure according to claim 1, characterized in that: The vaporization combustion adhesive mesh has a double-layer structure, with the inner layer being an iron-aluminum wire mesh and the outer layer being a stainless steel wire cloth. The outer layer pore size of the vaporization combustion adhesive mesh is smaller than that of the inner layer pore size.
3. The liquid fuel combustion structure according to claim 2, characterized in that: On the bottom base of the vaporization combustion chamber, there is an annular groove that limits the vaporization combustion adhesive net, and the lower end of the vaporization combustion adhesive net is engaged in the annular groove.
4. The liquid fuel combustion structure according to claim 2, characterized in that: The upper and lower ends of the vaporization combustion adhesive mesh are fixed to the vaporization combustion cylinder by spot welding.
5. The liquid fuel combustion structure according to claim 2, characterized in that: The vaporization combustion adhesive mesh has a ring structure, and its ring sidewalls are straight, wavy, or rectangular.
6. The liquid fuel combustion structure according to claim 5, characterized in that: The annular vaporization combustion adhesive net has openings on its sidewalls.
7. The liquid fuel combustion structure according to claim 5, characterized in that: The straight-walled vaporization combustion adhesive net is generally annular, and its sidewalls are annular cylindrical structures.
8. The liquid fuel combustion structure according to claim 5, characterized in that: The wave-shaped vaporization combustion adhesive mesh is ring-shaped, and the cross-section of its sidewall is undulating. One section is a straight wall structure that is closely attached to the inner sidewall of the vaporization combustion cylinder. The through holes are opened on the straight wall structure.
9. The liquid fuel combustion structure according to claim 5, characterized in that: The rectangular vaporization combustion adhesive mesh is generally annular, and its sidewall cross-section is an undulating rectangular wave shape, with one section being a straight wall structure that is tightly attached to the inner sidewall of the vaporization combustion cylinder. The through holes are opened on the straight wall structure.
10. The liquid fuel combustion structure according to claim 1, characterized in that: The vaporization combustion adhesive net is a cylindrical, enclosed cover structure. The outer diameter of the vaporization combustion adhesive net is the same as the inner diameter of the vaporization combustion cylinder, and an air outlet is provided on the top surface of the vaporization combustion adhesive net.