A multifunctional vaporization furnace

Abstract

The present invention belongs to the field of outdoor heating devices, and in particular, relates to a multifunctional vaporization furnace, including a furnace body, a burner head and a feeding chassis, wherein the furnace body is connected to the feeding chassis, the furnace body is inserted into the burner head, a steam spray hole is opened in the center of the top of the furnace body, the burner head includes a fire-dividing component located directly above the steam spray hole, and an energy-gathering cover covering the outside of the fire-dividing component, the energy-gathering cover is in contact with the outside of the furnace body, and a spacing for steam to spray out and burn is reserved between the outer edge of the fire-dividing component and the energy-gathering cover, and the side wall of the energy-gathering cover is uniformly provided with combustion-supporting holes for air intake in the circumferential direction. The present invention improves the heat conduction efficiency from the burner head to the furnace body, reduces the heat loss on the furnace body, makes the furnace body temperature higher, and can vaporize alcohol with a relatively high boiling point, and at the same time has better vaporization effect, faster steam generation speed, more steam generation per unit time, and better jet combustion effect.

Description

Technical Field

[0001] The invention belongs to the field of outdoor heating devices, and in particular relates to a multifunctional vaporizing furnace. Background Art

[0002] With the improvement of people's living standards, outdoor activities such as self-driving tours have become a new and fashionable way of leisure and entertainment. Outdoor cooking and picnics have become a leisure lifestyle that people like. The outdoor stove, an indispensable heating device for picnics, has continued to increase in sales in recent years and has become a product with great development potential in the future.

[0003] As outdoor travel and self-driving travel became popular later in my country than in other countries, the development of outdoor stoves also lags behind that of other countries. At present, the commonly used outdoor stoves in China include cassette stoves, electric stoves, wood stoves, alcohol stoves, gasoline stoves, etc. Among them, the fuel tank of the cassette stove is a flammable and explosive dangerous item, which is not easy to carry. There are not many stores selling it when it is needed, so travel plans are often affected by not being able to buy fuel tanks; electric stoves require power, and outdoor mobile power supplies are expensive and large in size, making them unsuitable for use; wood stoves are prone to cause serious fires if the fire is not completely extinguished; therefore, fuel-type outdoor stoves such as alcohol stoves and gasoline stoves have become the first choice for outdoor cooking and heating devices.

[0004] After extensive searching, the applicant found that the existing fuel-type outdoor stoves with better combustion effects should be vaporization-type outdoor stoves, whose working principle is: part of the combustion heat is used to heat the heat-receiving body, part is inevitable heat loss, and part is transferred to the vaporization tube, where the liquid fuel is heated and vaporized to keep steam continuously generated.

[0005] However, the traditional vaporization type outdoor stove has a large volume and low heat transfer efficiency, and can only use fuels with relatively low boiling points such as gasoline and white gasoline. When a fuel with a relatively high boiling point such as alcohol is added to a traditional outdoor stove for use, the vaporization temperature is not enough and the vaporization effect is very general. However, as a flammable and dangerous source, fuels such as gasoline and white gasoline have limited purchasing channels, and secondly, gasoline combustion does not fully produce toxic and harmful substances, which is not environmentally friendly. Alcohol, as an environmentally friendly fuel, has a much greater advantage than gasoline and white gasoline. Therefore, how to improve the traditional vaporization type outdoor stove structure, improve the heat transfer amount and heat transfer efficiency, and make environmentally friendly fuels with relatively high boiling points such as alcohol have better vaporization and combustion effects has become the research direction of the applicant. Summary of the invention

[0006] In order to improve the heat conduction efficiency from the combustion head to the vaporization chamber and reduce the heat loss on the vaporization chamber shell, the present invention provides a multifunctional vaporization furnace. The present invention has high heat conduction efficiency, less heat loss of the furnace body, fast steam generation speed, better vaporization effect, and fast steam injection speed. At the same time, the present invention is small in size and easy to carry; it has high safety and can be applied to the combustion of different media.

[0007] The technical solution provided by the present invention is: a multifunctional vaporization furnace, including a furnace body, a furnace head and a feeding chassis, the furnace body is connected to the feeding chassis, the furnace body is inserted into the furnace head, a steam spray hole is opened in the top center of the furnace body, the furnace head includes a fire-dividing component located directly above the steam spray hole, and an energy-gathering cover covering the outside of the fire-dividing component, the energy-gathering cover is in contact with the outside of the furnace body, and a distance for steam to spray and burn is reserved between the outer edge of the fire-dividing component and the energy-gathering cover, and combustion-supporting holes for air intake are evenly opened on the side wall of the energy-gathering cover.

[0008] The interior of the furnace body is filled with high-temperature resistant heat-conductive fibers or metal wires, which extend to the bottom of the feeding chassis; the furnace body includes no less than three layers of furnace barrels that are sequentially fitted and connected, and there is contact between adjacent furnace barrels and a closed gap cavity is left for the passage of steam-state combustion medium. The furnace barrels are divided into odd-numbered layers and even-numbered layers from the inside to the outside, and the upper part of the odd-numbered furnace barrels is provided with connecting holes, and the lower part of the even-numbered furnace barrels is provided with connecting holes, so that the steam can flow back and forth up and down in the furnace body, and the steam injection hole is provided in the center of the upper end face of the outermost furnace barrel; the top ends of adjacent furnace barrels are in contact, and the connecting holes of the odd-numbered furnace barrels are provided on the top ends, and the top ends of the connecting holes are provided with steam guide grooves radiating outward, and the steam guide grooves continue to extend downward along the outer wall of the furnace barrel to the bottom of the furnace barrel; the outer wall and the top end face of the even-numbered layers are provided with steam guide grooves, and the steam guide grooves of the outer wall are connected with the steam guide grooves of the top end face.

[0009] The outermost furnace tube in the furnace body is processed with threads on the outside, and the energy-gathering hood and the fire-dividing component are respectively connected to the furnace body with threads; the part of the furnace body located in the burner head is spirally or wavy-shaped, and the steam injection hole is opened on the furnace body just below the center of the fire-dividing component, and the injection direction of the steam injection hole is upward. The upper part of the furnace body is located in the flame combustion area of ​​the burner head, and the flame can directly heat it; the feeding chassis is provided with a spiral material separation belt in an involute shape to increase the contact time and area between the liquid fuel and the feeding chassis as much as possible; the multifunctional vaporization furnace also includes a speed regulating valve, which is integrated on the feeding chassis and used to control the inlet end of the feeding chassis. Liquid volume and use waste heat to increase gasification volume; the fire dividing component includes a fire dividing bowl, and support rods are evenly distributed on the edge of the fire dividing bowl. The number of support rods is the same as the number of combustion-supporting holes, and each support rod is fixed with a mixed air volume adjustment plate with the same shape as the combustion-supporting hole and corresponding to the position of the combustion-supporting hole. A nut is fixed to the lower end of the support rod, and the nut is screwed onto the furnace body; the fire dividing component includes a silent head and a threaded tube, the upper end of the threaded tube is fixedly connected to and communicated with the silent head, the lower end of the threaded tube is screwed onto the furnace body, the upper end of the silent head is closed, and the side wall is evenly opened with combustion holes in a circumferential direction, and the side wall of the threaded tube is opened with a mixed air volume adjustment hole with the same shape as the combustion-supporting hole and corresponding to the position of the combustion-supporting hole.

[0010] The beneficial effects of the present invention are:

[0011] 1. The present invention innovatively inserts the furnace body into the furnace head, which, on the one hand, makes the furnace body closer to the flame, and the burning furnace head is equivalent to the external insulation layer of the furnace body, which greatly increases the heat conduction efficiency between the two, so that the temperature of the furnace body is raised faster and higher; on the other hand, it reduces the contact area between the furnace body and the air at normal temperature, reduces heat loss, and makes more heat effectively transferred to the furnace body, so that alcohol with a relatively high boiling point can also achieve a good vaporization effect and a fast vaporization speed, and increase the vaporization amount per unit time. The increase in the vaporization amount makes the gas pressure in the furnace body greater, so that the steam injection effect is better.

[0012] 2. In order to enable the furnace body to be inserted into a smaller burner head, the present invention innovatively designs the furnace body into a more compact portable component. Its structure includes a multi-layer set of furnace barrels. Steam flows up and down in a "snake-like" manner in the multi-layer furnace barrels, thereby efficiently conducting heat between the layers of the furnace barrels, minimizing heat loss in the process of transferring heat to the inner furnace barrel, and achieving extremely high heat transfer efficiency. This design is more conducive to the development of the furnace body in the direction of miniaturization and portability.

[0013] 3. Since the combustion of different fuel vapors requires different proportions of air or oxygen to be mixed in (for example, the amount of combustion-supporting air required for gasoline combustion is greater than the amount of combustion-supporting air required for alcohol combustion), the distance between the burner head and the steam injection hole in the present invention can be adjusted to change the amount of mixed air. Another way of adjusting the amount of mixed air in the present invention is to adjust the relative rotation between the energy-gathering hood and the fire-dividing component in the burner head, change the position shielding relationship between the combustion-supporting holes on the side wall of the energy-gathering hood and the air-mixing amount adjusting holes or the air-mixing amount adjusting plates in the fire-dividing component, thereby adjusting the amount of mixed air, and thus making the present invention suitable for the combustion of different fuels.

[0014] 4. The two major components of the burner head in the present invention, the energy-gathering cover and the fire-distributing component, are in contact and connected with the furnace body, which fully increases the heat conduction and ensures the rapid generation and strong ejection of the vapor fuel; at the same time, it reduces the temperature of the burner head, avoids excessive oxidation of the burner head, and is beneficial to prolonging the service life of the burner head.

[0015] 5. In the present invention, the lower end of the furnace body is connected to the feeding chassis, and the heat on the furnace body will inevitably be transferred to the feeding chassis. The feeding chassis serves the purpose of assisting in providing steam. The interior of the feeding chassis is an involute spiral material partition belt, which increases the contact time and area between the material and the feeding chassis and increases the vaporization amount. The speed regulating valve integrated on the feeding chassis can also serve the purpose of assisting in providing steam, so that the heat is efficiently utilized and the vaporization amount is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the present invention.

[0018] Figure 3 It is a cross-sectional view of the furnace body of the present invention.

[0019] Figure 4 Figure 3 A top view of the innermost furnace drum.

[0020] Figure 5 Figure 3 Top view of the middle-level furnace.

[0021] Figure 6 Figure 3 A top view of the outermost furnace drum.

[0022] Figure 7 It is a structural schematic diagram of the upper end of the furnace body connected to the energy gathering cover in the present invention.

[0023] Figure 8 It is a structural schematic diagram of a fire distribution component connected to the upper end of the furnace body in the present invention.

[0024] Fig. 9yes Figure 8 The expanded view of the center fire bowl, support rod and gas mixture adjustment plate of the center fire components.

[0025] Fig.10 It is a structural schematic diagram of another fire-distributing component connected to the upper end of the furnace body in the present invention.

[0026] Fig.11 It is a cross-sectional view of the feeding chassis in the present invention.

[0027] In the figure: 1-feeding chassis, 2-burner head, 21-fire distribution component, 211-fire distribution bowl, 212-support rod, 213-gas mixing amount adjustment plate, 214-nut, 215-silent head, 216-threaded pipe, 217-combustion hole, 218-gas mixing amount adjustment hole, 22-energy gathering cover, 221-combustion supporting hole, 3-furnace body, 31-furnace barrel, 32-gap cavity, 33-connecting hole, 34-steam guide groove, 4-steam spray hole, 5-spiral partition belt, 6-speed regulating valve. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figure 1 , 2 As shown, a multifunctional vaporization furnace comprises a furnace body 3, a burner head 2 and a feeding chassis 1. The furnace body 3 is connected to the feeding chassis 1, and the furnace body 3 is inserted into the burner head 2. This design, on the one hand, makes the furnace body 3 closer to the flame, and the burning burner head 2 is equivalent to the external insulation layer of the furnace body 3, which greatly increases the heat conduction efficiency between the two, so that the temperature of the furnace body 3 is increased faster and higher. On the other hand, it reduces the contact area between the furnace body 3 and the normal temperature air, reduces the heat loss, and makes more heat effectively transferred to the furnace body 3, so that alcohol with a relatively high boiling point can also achieve a good vaporization effect and a fast vaporization speed, thereby increasing the vaporization amount per unit time.

[0030] A single steam injection hole 4 is provided at the center of the top of the furnace body 3, the purpose of which is to increase the gas pressure inside the furnace body 3 and increase the steam injection speed. When the steam injection speed is high, it will affect its combustion. In order not to affect the combustion, the injected steam needs to be decelerated, so a burner head 2 is provided above the steam injection hole 4. The burner head 2 includes a fire-dividing component 21 located directly above the steam injection hole 4, and an energy-gathering cover 22 covering the outside of the fire-dividing component 21. The energy-gathering cover 22 contacts the outside of the furnace body 3, and then conducts the heat of the burner head 2 to the furnace body 3 by contact. During the high-speed injection of steam, air is mixed in. After encountering the fire-dividing component 21, the speed is reduced, the injection direction is changed, and the steam is burned. A gap is left between the outer edge of the fire-dividing component 21 and the energy-gathering cover 22 for steam injection and combustion. The steam is injected from the gap and continues to burn. The side wall of the energy-gathering cover 22 is evenly provided with combustion-supporting holes 221 for air intake. The effective mixing of air makes the fuel steam burn more fully.

[0031] In order to enable the furnace body 3 to be inserted into a smaller burner head 2, the present invention innovatively designs the furnace body 3 into a more miniaturized portable component. The furnace body 3 includes no less than three layers of furnace barrels 31 that are sequentially connected and are in contact with each other and have a closed gap cavity 32 that allows the vapor combustion medium to pass through. Preferably, the contact between the adjacent furnace barrels 31 is a threaded connection between the adjacent furnace barrels 31. This connection method occupies a small space, has a large connection contact area, has better thermal conductivity, and has high connection stability, which is more conducive to the development of the furnace body 3 in the direction of miniaturization and portability. The closed gap cavity 32 is a cavity formed by the gap between the threads. The gap cavity has a small volume and can retain less steam, which greatly reduces the risk of explosion when using a traditional alcohol stove. The present invention is safer and more reliable to use. The furnace drum 31 is divided into odd-numbered layers and even-numbered layers from the inside to the outside. The top surfaces of adjacent furnace drums 31 are in contact, which further enhances the heat conductivity between the furnace drums 31. The connecting holes 33 of the furnace drums 31 of the odd-numbered layers are opened on the top surface, and the top surface of the connecting holes 33 is radiated outward with steam guide grooves 34. The steam guide grooves 34 continue to extend downward along the outer wall of the furnace drum 31 to the bottom of the furnace drum 31, and the steam flows from top to bottom along the steam guide grooves 34; the lower part of the furnace drums 31 of the even-numbered layers is opened with connecting holes 33, and the steam enters the outside of the even-numbered layers from the inside of the even-numbered layers through the connecting holes 33. The outer wall of the furnace drums 31 of the even-numbered layers is opened with steam guide grooves 34, and the top surface is also opened with The steam guide groove 34, the outer wall steam guide groove 34 are connected with the top surface steam guide groove 34, the steam flows from bottom to top on the even-numbered outer wall, and so on, so that the steam flows back and forth up and down in the furnace body 3 in a "snake-like" manner, and the heat is efficiently conducted between the layers of the furnace tubes 31, the heat transfer efficiency is extremely high, and the heat loss is greatly reduced. The steam injection hole 4 is opened in the center of the upper end surface of the outermost furnace tube 31. In the present invention, the furnace body 3 has only one steam injection hole 4, so that the steam pressure generated in the furnace body 3 is higher and the steam injection speed is faster. Compared with the traditional vaporization type outdoor furnace with porous dispersed injection combustion, the present invention has a better windproof effect.

[0032] The innermost furnace tube 31 is filled with high-temperature resistant heat-conductive fibers, which extend to the bottom of the feed chassis 1. The high-temperature resistant heat-conductive fibers can introduce the fuel liquid into the innermost furnace tube 31 through capillary action, providing supply for the continuous vaporization of the liquid.

[0033] The outermost furnace tube 31 in the furnace body 3 is processed with threads on the outside. The two major components of the furnace head 2 in the present invention, the energy collecting cover 22 and the fire dividing component 21, are both threadedly connected to the furnace body 3, which fully increases the heat conduction and ensures the rapid generation and strong ejection of steam; at the same time, it reduces the temperature of the furnace head 2, avoids excessive oxidation of the furnace head 2, and is conducive to extending the service life of the furnace head 2. Another function of the threaded connection is to adjust the amount of combustion-supporting air mixed in during combustion, so that the present invention is suitable for the vaporization combustion of different fuels. It is known that the combustion of different fuel steam requires different proportions of air or oxygen to be mixed in. Therefore, adjusting the distance between the fire dividing component 21 and the steam injection hole 4 can adjust the amount of mixed air, thereby making the present invention suitable for the combustion of different fuels.

[0034] The fire-distributing component 21 includes a fire-distributing bowl 211, which is located below the steam-spraying hole 4. The fire-distributing bowl 211 can disperse the flame to prevent the concentrated strong heating of the flame from causing uneven heating of the heated body and excessive local temperature. Support rods 212 are evenly distributed on the edge of the fire-distributing bowl 211. The number of support rods 212 is the same as the number of combustion-supporting holes 221. Each support rod 212 is fixedly connected with a mixed gas volume adjustment plate 213 with the same shape as the combustion-supporting hole 221 and a position corresponding to the position of the combustion-supporting hole 221. A nut 214 is fixedly connected to the lower end of the support rod 212, and the nut 214 is screwed onto the furnace body 3. As another structural form of the fire-dividing component 21, its structure includes a silent head 215 and a threaded tube 216. The upper end of the threaded tube 216 is fixedly connected to and communicated with the silent head 215, and the lower end of the threaded tube 216 is screwed onto the furnace body 3. The upper end of the silent head 215 is closed, and the side wall is circumferentially evenly provided with combustion holes 217. Steam is ejected and burned from the multiple combustion holes 217, which reduces the noise of the entire stream of steam being ejected and burned, and makes the flame combustion noise smaller. The side wall of the threaded tube 216 is provided with a mixing amount adjustment hole 218 with the same shape as the combustion-aiding hole 221 and a position corresponding to the position of the combustion-aiding hole 221. In the present invention, there is another way to adjust the mixed air, specifically: the energy focusing hood 22 and the fire dividing component 21 in the burner head 2 rotate relative to each other, changing the position shielding relationship between the combustion-supporting holes 221 on the side wall of the energy focusing hood 22 and the mixed air amount adjustment holes 218 or the mixed air amount adjustment plate 213 in the fire dividing component 21, thereby adjusting the amount of mixed air, so that the present invention is suitable for the combustion of different fuels.

[0035] In order to further utilize the heat conducted from the furnace body 3 to the feeding chassis 1 and further increase the steam generation, the feeding chassis 1 is provided with a spiral material separation belt 5 in an involute shape to increase the contact time and area between the liquid fuel and the feeding chassis 1 as much as possible. The speed regulating valve 6 is integrated on the feeding chassis 1 and is used to control the liquid inlet amount at the inlet end of the feeding chassis 1. The higher temperature speed regulating valve 6 can also assist steam generation to achieve the best vaporization effect.

[0036] In order to make the present invention applicable to the combustion of different fuel media, the steam injection hole 4 can be connected with nozzles of different calibers. By replacing the nozzles, the amount of steam injection can be changed, so that different fuel media can be smoothly burned in the present invention.

[0037] In the present invention, when the furnace body 3 is a single-layer furnace tube 31, the portion of the furnace body 3 located inside the burner head 2 is spirally or wavy-shaped, and the steam spray hole 4 is provided on the furnace body 3 just below the center of the fire dividing component 21. The spray direction of the steam spray hole 4 is upward, and the upper portion of the furnace body 3 is located in the flame combustion area of ​​the burner head 2. The flame can directly heat it, further increasing the thermal conductivity and further improving the gasification effect of the furnace body 3.

[0038] The present invention innovatively designs the furnace body 3 inside the burner head 2, which increases the heat received by the furnace body 3 to the maximum extent, so that the alcohol with a higher boiling point as a fuel has a good vaporization effect in the present invention. At the same time, the internal structure of the furnace body 3 in the present invention is reasonably designed, compact, has a good heat transfer effect, and has low heat loss, which is more conducive to the development of outdoor stoves towards miniaturization and portability.

Claims

1. A multifunctional vaporization furnace, characterized in that: The invention comprises a furnace body (3), a furnace head (2) and a feeding chassis (1), wherein the furnace body (3) is connected to the feeding chassis (1), the furnace body (3) is inserted into the furnace head (2), a steam injection hole (4) is provided at the center of the top of the furnace body (3), the furnace head (2) comprises a fire dividing component (21) located directly above the steam injection hole (4), and an energy collecting cover (22) covering the outside of the fire dividing component (21), the energy collecting cover (22) is in contact with the outside of the furnace body (3), a space for steam to be injected and burned is reserved between the outer edge of the fire dividing component (21) and the energy collecting cover (22), and the side wall of the energy collecting cover (22) is provided with a space for steam to be injected and burned. The furnace body (3) includes at least three layers of furnace barrels (31) which are connected in sequence. Adjacent furnace barrels (31) are in contact with each other and have closed gap cavities (32) for allowing steam-like combustion medium to pass through. The furnace barrels (31) are divided into odd-numbered layers and even-numbered layers from the inside to the outside. The upper part of the odd-numbered furnace barrels (31) is provided with connecting holes (33), and the lower part of the even-numbered furnace barrels (31) is provided with connecting holes (33), so that steam can flow back and forth up and down in the furnace body (3). The steam injection hole (4) is provided at the center of the upper end surface of the outermost furnace barrel (31).

2. The multifunctional vaporization furnace according to claim 1, characterized in that: The top surfaces of adjacent furnace drums (31) are in contact, the communicating holes (33) of the furnace drums (31) of odd number layers are opened on the top surfaces, and the top surfaces at the communicating holes (33) are provided with steam guide grooves (34) radiating outwards, and the steam guide grooves (34) continue to extend downwards along the outer wall of the furnace drum (31) to the bottom of the furnace drum (31); the outer wall and the top surface of the furnace drums (31) of even number layers are provided with steam guide grooves (34), and the steam guide grooves (34) on the outer wall are connected with the steam guide grooves (34) on the top surface.

3. The multifunctional vaporization furnace according to claim 1, characterized in that: The outermost furnace tube (31) in the furnace body (3) is processed with threads on the outside, and the energy gathering cover (22) and the fire dividing component (21) are respectively connected to the furnace body (3) by threads.

4. The multifunctional vaporization furnace according to any one of claims 1 to 3, characterized in that: The fire-spreading component (21) comprises a fire-spreading bowl (211), and support rods (212) are evenly distributed on the edge of the fire-spreading bowl (211). The number of the support rods (212) is the same as the number of the combustion-supporting holes (221). Each support rod (212) is fixedly connected to a mixed gas volume adjustment plate (213) having the same shape as the combustion-supporting hole (221) and a position corresponding to the position of the combustion-supporting hole (221). A nut (214) is fixedly connected to the lower end of the support rod (212), and the nut (214) is screwed onto the furnace body (3).

5. The multifunctional vaporization furnace according to any one of claims 1 to 3, characterized in that: The fire distribution component (21) includes a silent head (215) and a threaded tube (216), the upper end of the threaded tube (216) is fixedly connected to and communicated with the silent head (215), the lower end of the threaded tube (216) is screwed onto the furnace body (3), the upper end of the silent head (215) is closed, and the side wall is uniformly provided with combustion holes (217) in the circumferential direction, and the side wall of the threaded tube (216) is provided with a mixed gas amount adjustment hole (218) having the same shape as the combustion-supporting hole (221) and a position corresponding to the position of the combustion-supporting hole (221).

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