Combined combustion assembly and alcohol stove comprising same

Abstract

The utility model relates to a combined combustion assembly and an alcohol stove comprising the same, the combined combustion assembly comprises a stove head, and the stove head is provided with a first combustion part and a second combustion part; a fuel channel is formed in the gasification pipe, the gasification pipe is divided into a preheating part and a heating part, a preheating space is formed between the preheating part and the first combustion part, a heating space is formed between the heating part and the second combustion part, and a medium exchange channel is formed between the preheating space and the heating space and used for conveying fuel. The valve system comprises a valve body and an adjusting piece, fuel in the fuel channel is conveyed to the two combustion parts through the valve body, and the fuel flow is controlled through the adjusting piece. The second combustion part is located above the first combustion part, the medium exchange channel is in a vertical column shape, an overlapping area exists between the preheating space and the heating space, the heating part comprises a straight pipe section and a bent pipe section, the straight pipe section is connected with external heat, and the bent pipe section is located in the overlapping area. The valves are located on the two sides of the preheating space. The heating part is located between the valve body and the preheating part. The combustion efficiency and the heat energy utilization rate of the alcohol stove can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor products, in particular to a combined combustion component and an alcohol stove comprising the component. Background Art

[0002] Although the current alcohol stove technology has tried to incorporate preheating, there is still room for improvement in the fuel transfer process and combustion performance optimization. The preheating structure and technology of traditional alcohol stoves are usually relatively basic. During the transfer of fuel from the storage system to the combustion chamber, the preheating and vaporization process may not be fully optimized. Especially under low temperature conditions, the preheating efficiency may not be enough to ensure that the alcohol is completely vaporized before combustion, resulting in incomplete combustion, low thermal efficiency and poor flame stability.

[0003] In addition, although existing technologies have achieved fuel preheating to some extent, in most cases, they have not systematically considered the optimal state conversion process of the fuel in different temperature ranges, especially the lack of a staged heating strategy to achieve sufficient preheating and vaporization of the fuel at a relatively low temperature, and then effective combustion under higher temperature conditions. This shortcoming limits the improvement of the overall thermal energy conversion efficiency of the alcohol stove, and due to the lack of a sophisticated combustion control mechanism, existing products have certain limitations in fine-tuning the firepower required for different cooking scenarios. Utility Model Content

[0004] The utility model aims to provide a combined combustion assembly and an alcohol stove including the assembly, so as to solve the shortcomings of the alcohol stove in the above background technology, that is, the combustion efficiency and the heat energy utilization rate are insufficient.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined combustion assembly, including a burner, a gasification tube and a valve; a first combustion part and a second combustion part are formed on the burner; a fuel channel is formed inside the gasification tube, the gasification tube has a preheating part, a preheating space is formed between the preheating part and the first combustion part, the gasification tube has a heating part, a heating space is formed between the heating part and the second combustion part; the valve has a valve body and an adjusting member, the valve body is connected with the first combustion part, the second combustion part and the gasification tube, the valve body is used to transport the fuel in the fuel channel to the first combustion part and the second combustion part through the valve body, and the adjusting member can adjust the flow rate of the fuel passing through the valve body; a medium exchange channel is formed between the preheating space and the heating space, and the medium exchange channel is used for fuel transmission.

[0006] Furthermore, along the height direction of the medium exchange channel, the second combustion part is located at a high side of the first combustion part.

[0007] Furthermore, the medium exchange channel is a vertically arranged cylindrical space.

[0008] Furthermore, the preheating space and the heating space have an overlapping area, and the heating part is located in the overlapping area.

[0009] Furthermore, the heating part includes a straight pipe section and a curved pipe section, the straight pipe section is used to intersperse the outside and the overlapping area, and the curved pipe section is located in the overlapping area, wherein the outside refers to the space outside the overlapping area.

[0010] Furthermore, the valve body and the heating part are respectively located on both sides of the preheating space; and along the flow direction of the fuel channel, the heating part is located between the valve body and the preheating part.

[0011] Furthermore, the second combustion portion forms a plurality of through holes, and the plurality of through holes are located in the medium exchange channel.

[0012] The utility model also provides an alcohol stove, comprising the above-mentioned combined combustion assembly, a stove cover and a material storage tank; the stove cover encloses a combustion chamber, the stove head and the gasification pipe are arranged in the combustion chamber, and the valve is inserted in the combustion chamber; the material storage tank is arranged at the bottom of the stove cover, and the material storage tank is connected to the gasification pipe.

[0013] The advantages of the combined combustion assembly described in the utility model over the prior art are:

[0014] Through the design of the preheating space and the heating space, a medium exchange channel is set between the two. This channel not only realizes the orderly transmission of fuel from the preheating area to the heating area, but more importantly, it allows the fuel to be initially vaporized and the temperature to be increased during the preheating stage, and then enter the heating space for further vaporization and efficient combustion. In this way, not only the combustion efficiency of the fuel is greatly improved, but also through the clever use of the medium exchange channel, the design is given excellent firepower adjustment capabilities, allowing users to accurately control the fuel supply according to actual needs, thereby adapting to diversified cooking scenarios, and significantly improving the performance and practicality of the alcohol stove.

[0015] The advantages of the alcohol stove described in the utility model over the prior art are:

[0016] The burner head, gasification tube and combustion chamber inside the furnace cover are cleverly integrated to ensure that heat is effectively transferred and utilized in the combustion chamber, which helps to improve combustion efficiency and thermal energy utilization.

[0017] Key components such as the burner head, gasification tube and valve are compactly integrated inside the furnace cover. This design not only optimizes space utilization, but also makes the overall structure more compact, which is conducive to reducing weight and size, and is very convenient to carry and use in outdoor environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the valve body structure of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the adjusting member of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the curved pipe section of the heating part of the utility model.

[0023] Markings and corresponding parts names in the attached drawings:

[0024] First combustion part, 2, second combustion part, 3, gasification pipe, 4, valve, 401, valve body, 402, regulating part, 5, furnace cover, 6, storage tank, 7, feeding port, 8, pressurizing device, 9, pressure supplement device DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] Embodiment 1:

[0027] like Figure 1-4 As shown, the combined combustion assembly provided in this embodiment has a burner head made of a durable metal material with good thermal conductivity to ensure that heat can be quickly transferred and effectively stimulate fuel combustion. Two combustion areas are formed on the burner head, namely the first combustion part 1 and the second combustion part 2, and both of these combustion parts adopt special structures to meet the needs of different combustion stages.

[0028] In this embodiment, in order to find a balance between thermal conductivity and service life, the material of the vaporization tube 3 was carefully selected, and brass was finally selected as the main material. Compared with copper, which has stronger thermal conductivity but relatively weaker durability, brass is highly favored due to its excellent mechanical properties and long service life. However, in order not to sacrifice the efficient thermal conductivity of the vaporization tube 3, we specially introduced an innovative composite lining structure in the design.

[0029] Specifically, the gasification tube 3 is filled with a mixture of steel wire and copper wire in a specific ratio (about 95% filling rate). This mixture structure not only takes advantage of the excellent thermal conductivity of copper, but also utilizes the high strength and support of steel wire, thereby maintaining efficient heat transfer while significantly enhancing the durability of the gasification tube 3 and its ability to resist thermal expansion and contraction.

[0030] In this way, the combined combustion assembly provided in this embodiment not only achieves an organic combination of high performance and long life in the design of the gasification tube 3, but also reflects the ingenious application of technological innovation and material science, ensuring that during the entire gasification and combustion process, the fuel can quickly and evenly acquire and transfer heat, thereby improving the operating efficiency and stability of the entire combustion assembly.

[0031] The valve 4 is designed with a precise two-way adjustment structure, including a valve body 401 and an adjustment member 402. The valve body 401 is made of a high temperature and corrosion resistant alloy material, and has a complex flow channel network inside, which is seamlessly connected with the gasification tube 3 and the first combustion part 1 and the second combustion part 2 on the burner to form a complete fuel transmission path.

[0032] Specifically, a set of precision-cast spiral grooves are embedded in the valve body 401, which are closely connected to the fuel channel to ensure that the fuel can be smoothly transported from the gasification tube 3 to the two combustion parts of the burner. The adjustment member 402 adopts an integrated design and includes a rotating handle with a scale indicator. The user can adjust the position of the internal valve core by rotating the handle, thereby changing the opening size of the spiral groove, and then accurately controlling the flow rate of fuel flowing through the valve body 401.

[0033] For example, during normal use, when the user needs to increase the firepower, the user can turn the handle of the adjustment member 402 clockwise to increase the opening of the internal channel of the valve body 401, so that more fuel can enter the first combustion part 1 and the second combustion part 2, thereby achieving an increase in firepower. On the contrary, if the firepower is to be reduced, the handle is rotated counterclockwise to reduce the channel opening and limit the fuel flow. This design not only ensures the firepower adjustment accuracy of the combustion assembly, but also effectively improves the controllability and safety of the entire combustion process.

[0034] The design of the medium exchange channel between the preheating space and the heating space is reflected in a carefully planned heat exchange structure. This structure is located between the three sections of the gasification tube inside the furnace head and consists of a series of staggered micro channels made of high-temperature resistant and heat-conductive metal materials such as brass or stainless steel.

[0035] In specific operation, the fuel enters the preheating space from the fuel channel inside the gasification tube 3, where it makes initial contact and heat exchange with the heat emitted from the first combustion part 1 of the burner, initially evaporates and accelerates vaporization. As the fuel continues to move along the medium exchange channel, it will enter the transition area before the heating space, where the channel is designed to be more dense, the heat transfer efficiency is higher, and the vaporization degree of the fuel is further improved.

[0036] When the fuel passes through the medium exchange channel, its liquid and gaseous components constantly change in the gradient temperature field between the preheating and heating spaces, ensuring that most of the fuel has been converted into gaseous state when entering the heating space, so that more complete and efficient combustion can be achieved in the second combustion part 2. This structural design not only improves the combustion efficiency of alcohol, but also makes the flame more stable, thereby improving the performance and practicality of the entire combustion assembly.

[0037] Embodiment 2:

[0038] On the basis of the above embodiment, in order to achieve more efficient heat energy transfer and combustion effect, a clever design is made along the height direction of the medium exchange channel. Specifically, the second combustion part 2 is located above the first combustion part 1 to make full use of the thermodynamic principle that hot air naturally rises, thereby ensuring that the heat generated from the first combustion part 1 can be better transported upward, providing sufficient preheating conditions for the second combustion part 2.

[0039] In specific implementation, the second combustion part 2 is cleverly constructed on the upper surface of the burner, and its shape and structural design can be annular, semicircular or porous plate, etc., to adapt to different combustion requirements and flame forms. Correspondingly, the first combustion part 1 is designed as a disc structure located below the second combustion part 2, which is embedded in the burner and tightly combined with the preheating space of the gasification tube 3.

[0040] When the fuel passes through the medium exchange channel, it first undergoes preliminary combustion and preheating near the first combustion section 1, then rises and passes through the medium exchange channel, and enters the second combustion section 2 after further heating and vaporization. Since the second combustion section 2 is higher than the first combustion section 1, the fuel can not only be fully heated by the radiant heat from the first combustion section 1 during the rising process, but also generate more heat during its own combustion process, thus forming an efficient combustion system with upper and lower linkage and step-by-step heat transfer, which greatly improves the performance and fuel utilization of the entire combustion assembly.

[0041] Embodiment 3:

[0042] On the basis of the above embodiment, in order to achieve more efficient heat exchange and fuel transmission, we design the medium exchange channel as a vertically arranged columnar space structure. Specifically, this columnar space extends in the vertical direction, connecting the preheating space and the heating space, forming a continuous and highly concentrated heat transmission channel.

[0043] In specific implementation, the interior of the columnar space is smooth and the size is precisely calculated to ensure that the fuel can contact the surrounding heat medium to the greatest extent during the rising process, thereby achieving rapid and uniform preheating and vaporization. At the same time, considering the heat dissipation and combustion efficiency, the wall material of the columnar space is preferably a metal with excellent thermal conductivity, such as brass, and the interior can be filled with a thermal conductive medium to enhance the heat conduction effect when necessary.

[0044] In addition, in order to allow the fuel to smoothly and controllably enter the first combustion section 1 and the second combustion section 2 through the medium exchange channel, the outlet of the channel is seamlessly connected with the various parts of the burner. In this way, the fuel is first preheated when entering the first combustion section 1, then rises along the vertical columnar space, further heated and vaporized, and finally completely burned in the second combustion section 2, thereby achieving efficient and refined control of the entire combustion process.

[0045] Embodiment 4:

[0046] On the basis of the above embodiments, in order to achieve more efficient heat transfer and combustion effect, Yian designed the overlapping area between the preheating space and the heating space. Specifically, the heating part is cleverly arranged in this overlapping area, so that the heat generated from the first combustion part 1 can be transferred to the heating part more directly and quickly, and at the same time, the fuel that is about to enter the heating part can be preheated to ensure that it has sufficient temperature for efficient combustion when entering the heating part.

[0047] In specific implementation, the overlapping area of ​​the preheating space and the heating space adopts optimized geometric shape and structural design, such as through staggered stacking, surrounding wrapping, etc., so that the heat can form a strong heat exchange area at the junction of the two spaces. The heating part is located at the core of this area, which can not only receive the waste heat from the first combustion part 1, but also use its own heat to perform secondary preheating and catalytic vaporization on the incoming fuel, thereby effectively improving the combustion efficiency and stability of the entire combustion assembly.

[0048] In addition, to ensure uniform distribution and sufficient contact of the fuel during preheating and heating, the internal structure of the heating unit may adopt micropores, fins, bellows, etc. to enhance its heat exchange area and effect, making the entire combustion process more efficient and controllable. Through such design optimization, the combustion component can minimize fuel consumption while maximizing heat output, which is very suitable for outdoor cooking or heating scenarios.

[0049] Embodiment 5:

[0050] like Figure 5 As shown, based on the above embodiment, in order to further optimize the heat energy transfer and fuel flow path, the heating part is designed to include a combination structure of a straight pipe section and a curved pipe section. The main function of the straight pipe section is to connect from the external space (i.e., the space outside the overlapping area) to the inside of the overlapping area, ensuring that the fuel can flow smoothly from the external fuel channel to the boundary area between the preheating and heating space, thereby achieving efficient heat transfer.

[0051] In specific implementation, the straight pipe section is made of high temperature resistant material with good thermal conductivity, and its diameter and length are carefully calculated to ensure stable fuel delivery and effectively utilize the heat released by the first combustion section 1 to prepare for preheating of the subsequent curved pipe section.

[0052] The curved pipe section is located in the overlapping area of ​​the preheating space and the heating space, and is designed in a zigzag or spiral shape. The advantages of this are: on the one hand, it prolongs the residence time of the fuel in the heating section, which helps the fuel to be fully preheated and vaporized during the flow process; on the other hand, the zigzag curved pipe section increases the contact area between the fuel and the surrounding heat medium, thereby significantly improving the heat exchange efficiency.

[0053] This design combining straight pipe sections with curved pipe sections can not only optimize heat distribution and ensure the stability and efficiency of the combustion process, but also enhance the structural compactness of the entire combustion assembly, making it more suitable for the use of outdoor portable alcohol stoves.

[0054] Embodiment 6:

[0055] On the basis of the above embodiment, in order to achieve more accurate fuel delivery and thermal energy management, the valve body 401 and the heating part are intentionally arranged on both sides of the preheating space, and along the flow direction of the fuel channel, the heating part is located exactly between the valve body 401 and the preheating part. Such a layout design has the following advantages:

[0056] Fuel control: The valve body 401 is located before the heating part and can accurately control the fuel flow into the heating part. By fine-tuning the adjustment member 402, the user can adjust the combustion intensity according to actual needs to achieve refined control of the firepower.

[0057] Efficient heat exchange: The heating part is located between the valve body 401 and the preheating part. When the fuel flows out of the valve body 401, it first enters the heating part. At this time, the fuel can be effectively preheated and initially vaporized, ensuring that it can quickly reach an ideal vaporization state after entering the preheating space, thereby improving combustion efficiency.

[0058] Space optimization: The valve body 401 and the heating part are located on both sides of the preheating space respectively. This layout not only ensures the directional flow of the fuel, but also makes full use of the space, making the structure of the combustion assembly compact and reasonable, and easy to assemble and maintain.

[0059] Of course, it is also possible to improve the sensitivity and accuracy of fuel flow regulation by improving the internal structure of the valve body 401, such as adding a throttle hole or using an intelligent control element. At the same time, the material and structural design of the heating part can also be further optimized, such as using a high-efficiency heat-conducting material and designing it into a shape that is conducive to heat diffusion and fuel vaporization, thereby ensuring the improvement of the performance of the entire combustion assembly.

[0060] Embodiment 7:

[0061] In this embodiment, in order to further improve the combustion efficiency and heat distribution uniformity, the second combustion part 2 in the combined combustion assembly adopts a porous structure design. Specifically, a series of through holes that have been precisely processed and scientifically calculated and experimentally verified are evenly distributed inside the second combustion part 2, and each through hole can be regarded as a micro combustion unit, ensuring that the fuel can quickly and fully contact with oxygen and burn after entering the second combustion part 2.

[0062] First of all, the porous structure is created using precision technology, and the size and spacing of the through holes are scientifically reasonable, ensuring that the fuel can efficiently complete the gasification and combustion process when passing through, while effectively suppressing flame turbulence and greatly improving combustion stability.

[0063] Secondly, by setting multiple through holes in the medium exchange channel, the heat can be effectively dispersed and distributed more evenly over the entire combustion surface, which is not only beneficial to the cooking process, but also avoids the risk of energy waste and equipment damage caused by local overheating. Thirdly, each through hole is equivalent to a small-scale combustion chamber, which increases the combustion area and promotes more complete contact between fuel and oxygen, thereby significantly improving the combustion efficiency and flame intensity, and can adapt to diverse cooking needs.

[0064] Finally, the through-hole design also helps to guide the airflow to form a good circulation inside the burner, making the preheating and combustion processes more coordinated, thereby comprehensively improving the working efficiency of the entire combined combustion assembly.

[0065] By adding a plurality of through holes inside the second combustion part 2, this embodiment optimizes the combustion process and improves the combustion efficiency, while also significantly improving the performance of the combined combustion assembly in actual applications and the user experience.

[0066] Embodiment 8:

[0067] The alcohol stove provided in this embodiment includes a combined combustion component, a stove cover 5 and a storage tank 6. The stove cover 5 is made of heat-resistant material and is designed to form a closed and well-insulated combustion chamber, enclosing the burner head and the gasification tube 3 therein, to ensure that the heat generated by the combustion is used for cooking to the maximum extent, while also playing a role in windproofing and safety protection.

[0068] The storage tank 6 is installed at the bottom of the furnace cover 5 and is connected to the gasification pipe 3 to ensure that the fuel can be continuously and stably supplied to the combustion component. The storage tank 6 is designed with a safety device to prevent leakage and overflow, and is equipped with a visual window and capacity mark to facilitate the user to grasp the remaining fuel at any time.

[0069] A feeding port 7 is specially provided on the top of the storage tank 6, so that the user can add alcohol fuel to the tank safely and conveniently. In addition, the storage tank 6 is equipped with an advanced pressurizing device 8, which can be connected to an external pressure airbag through a special interface to realize the pressurization operation of the alcohol inside the storage tank 6.

[0070] Specifically, by pressurizing the storage tank 6 with an external air bag, the gasification speed and combustion efficiency of the alcohol fuel can be enhanced. Especially in a cold outdoor environment, the pressurization function helps to overcome the difficulty of alcohol vaporization caused by low temperature. At the same time, in order to ensure the safety and controllability of the pressurization process, a pressure replenishing device 9 is also provided on the storage tank 6. When the internal pressure is insufficient, the user can replenish the pressure in time through the pressure replenishing device 9 to ensure the continuity and stability of the combustion process.

[0071] In addition, the storage tank 6 is also equipped with an intuitive pressure gauge for real-time display of the pressure value in the tank, which is convenient for users to monitor and adjust the pressure state in the storage tank 6 at any time to ensure that the alcohol burns safely and efficiently within the appropriate pressure range. This series of humanized and high-tech design elements greatly improves the performance and user experience of the alcohol stove.

[0072] Working principle:

[0073] When the device is in use, the fuel enters the fuel channel of the gasification pipe 3 from the storage tank 6 through the valve 4 system. In the preheating space between the preheating part and the first combustion part 1, the fuel is firstly heated and preheated and vaporized.

[0074] Subsequently, the fuel rises along the vertically arranged columnar medium exchange channel. During this process, the preheating space and the heating space form an overlapping area, and the heating part (including a straight pipe section and a curved pipe section) is located in the overlapping area. The straight pipe section introduces external heat, and the curved pipe section design helps to enhance the heat exchange effect. The fuel is further heated and fully vaporized when passing through the heating part.

[0075] The second combustion section 2 is arranged above the first combustion section 1, and a plurality of through holes are formed in the medium exchange channel, which act as micro combustion chambers, so that the fuel can quickly and evenly contact with oxygen and burn when passing through, thereby achieving efficient and stable combustion effects.

[0076] The valve body 401 and the heating part are located on both sides of the preheating space. The fuel passes through the valve body 401 and the heating part in the flow direction, and finally reaches the second combustion part 2. The fuel flow rate can be accurately controlled by the adjustment member 402 to achieve free adjustment of the combustion intensity.

[0077] When multiple illustrative embodiments are mentioned in this specification, it means that the specific structure described in conjunction with the embodiment is included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a structure is described in conjunction with any embodiment, it is claimed that the structure is implemented in conjunction with other embodiments within the scope of the utility model.

Claims

1. A combined combustion assembly, characterized in that: include: A burner head, wherein a first combustion part and a second combustion part are formed on the burner head; a gasification tube, wherein a fuel channel is formed inside the gasification tube, the gasification tube has a preheating portion, a preheating space is formed between the preheating portion and the first combustion portion, and the gasification tube has a heating portion, a heating space is formed between the heating portion and the second combustion portion; A valve, the valve comprising a valve body and an adjusting member, the valve body being in communication with the first combustion part, the second combustion part and the gasification pipe, the valve body being used to transport the fuel in the fuel channel to the first combustion part and the second combustion part through the valve body, and the adjusting member being capable of adjusting the flow rate of the fuel passing through the valve body; Wherein, a medium exchange channel is formed between the preheating space and the heating space, and the medium exchange channel is used for fuel transmission.

2. The combined combustion assembly according to claim 1, characterized in that: Along the height direction of the medium exchange channel, the second combustion part is located at a high side of the first combustion part.

3. The combined combustion assembly according to claim 2, characterized in that: The medium exchange channel is a vertically arranged cylindrical space.

4. The combined combustion assembly according to any one of claims 1 to 3, characterized in that: The preheating space and the heating space have an overlapping area, and the heating part is located in the overlapping area.

5. The combined combustion assembly according to claim 4, characterized in that: The heating portion includes a straight pipe section and a curved pipe section, wherein the straight pipe section is used to intersperse the outside and the overlapping area, and the curved pipe section is located in the overlapping area, wherein the outside refers to the space outside the overlapping area.

6. The combined combustion assembly according to claim 5, characterized in that: The valve body and the heating part are respectively located on both sides of the preheating space; and along the flow direction of the fuel channel, the heating part is located between the valve body and the preheating part.

7. The combined combustion assembly according to any one of claims 1 to 3, characterized in that: The second combustion portion forms a plurality of through holes, and the plurality of through holes are located in the medium exchange channel.

8. An alcohol stove, characterized in that: include: The combined combustion assembly according to any one of claims 1 to 7; A furnace cover, wherein the furnace cover encloses a combustion chamber, the burner head and the gasification pipe are arranged in the combustion chamber, and the valve is inserted in the combustion chamber; A material storage tank is arranged at the bottom of the furnace cover, and the material storage tank is connected to the gasification pipe.

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