A stove for burning environmentally friendly bio - alcohol fuel

Abstract

The present invention provides a stove for burning environmentally friendly bio - alcohol oil, which includes a container for containing the environmentally friendly bio - alcohol oil and a furnace core. The furnace core includes a metal mesh body and a cladding plate. The metal mesh body includes one layer of metal mesh cloth or multiple layers of metal mesh cloth arranged in a stacked manner. The cladding plate is arranged on one or both sides in the thickness direction of the metal mesh body. The furnace core includes an oil - absorbing end at the lower part for immersing in the environmentally friendly bio - alcohol oil and an ignition end at the upper part for being exposed above the oil level in the vertical direction. And at the ignition end, the top height of the cladding plate is set to be different from the top height of the metal mesh body at least at one position, so that there is at least one ignition port at the ignition end, and at the ignition port, the cladding plate does not cover both sides in the thickness direction of the metal mesh body. There are no consumable parts in the stove of the present invention. The furnace core can be reused repeatedly and has the fastest ignition speed. The stove is energy - saving, safe and environmentally friendly, and can greatly accelerate the application of environmentally friendly bio - alcohol oil in a broader market and field.

Description

Technical Field

[0001] The present invention belongs to the fields of stoves and furnace cores, and particularly relates to a stove and a furnace core for burning environmentally friendly bio-alcohol oil. Background Art

[0002] Environmentally friendly bio-alcohol oil, which can be simply referred to as environmentally friendly oil, is a new type of fuel that is energy-saving and environmentally friendly. It is a new scientific and technological achievement in China. It is a combustible liquid produced as a by-product by a chemical fertilizer plant producing nitrogen ammonia through a mandatory co-alcohol production device, and is formulated by adding calorific value enhancers, modifiers, combustion aids, oxidants, stabilizers, smoke suppressants, flavoring agents, etc. in a certain proportion. It has the characteristics of no pressure, no explosion, non-toxic, an auto-ignition point of 385 °C, and safe and reliable use. At present, environmentally friendly bio-alcohol oil is mainly applicable to hot pot heating, fast food warming, grilled fish warming, etc. Environmentally friendly bio-alcohol oil is a renewable energy source. When in use, it burns fully, without black smoke, pollution, carbon deposition, odor emission, blackening of the pot bottom, and there is no residual liquid or residue. The exhaust gas emissions after combustion are lower than those of diesel and petroleum liquefied gas. Environmentally friendly oil has a high calorific value and strong firepower. Its calorific value can reach 8300 kcal / kg, which is slightly lower than that of diesel, but the calorific value of diesel or liquefied gas can be achieved by increasing the amount of environmentally friendly oil used. The price cost of environmentally friendly oil is also lower than that of diesel and petroleum liquefied gas, making it a truly cheap and highly clean fuel. This fuel is not easily ignited without an open flame. It is produced, stored, transported, and used at normal temperature and pressure, without the need for high-pressure steel cylinders. It can be stored in ordinary iron drums or plastic drums with sealed caps, and will not cause poisoning due to gas leakage. When the environmentally friendly bio-alcohol oil is extinguished, it can be extinguished by covering the fire extinguishing cover or pouring water on it. It will not be as difficult to extinguish as diesel, alcohol, or liquefied gas in case of accidental ignition and is not likely to cause major losses. Moreover, the accidentally leaked environmentally friendly oil can dissolve in water or dry naturally, and will not pollute the environment and pose a safety hazard like diesel or liquefied gas.

[0003] Because environmentally friendly bio-alcohol oil is not easily ignited without an open flame, and even when directly burning it with a fierce fire without a furnace core, it is difficult to ignite the environmentally friendly bio-alcohol oil. Therefore, cotton or asbestos is used as the combustion furnace core for environmentally friendly oil in the domestic and international markets at present to make it ignited and continuously burned, but this method and material will cause many pain points in the actual use process. First, as the environmentally friendly bio-alcohol oil burns out, the cotton core also burns out, so the cotton core cannot be reused. Second, the cotton core will cause the flame to become smaller as it burns and wears out. Third, after a certain combustion and extinguishing the flame, water vapor will accumulate in the cotton core, so it will be very difficult to ignite the fire on the cotton core when using this can of environmentally friendly bio-alcohol oil again. Fourth, in the prior art, the way to adjust the fire temperature is to increase or decrease the number of cotton cores, and the temperature adjustment is achieved by multi-head or single-head combustion, which will have many drawbacks in the use process. Fifth, the asbestos material itself also has environmental problems, and the cotton core or asbestos core will produce odors, volatiles, and dust after burning.

[0004] Therefore, there is a need in the art for a brand-new environmentally friendly bio-alcohol oil combustion furnace core and stove.

[0005] Chinese Patent Application for Invention CN201410360083 relates to a bio-alcohol oil fuel stove core with a wide temperature range, energy conservation and environmental protection, including a stove core body composed of a cylindrical body with a hollow structure and an annular disk surface. At least three layers of air inlet holes inclined at a certain angle in the counterclockwise direction are uniformly arranged on the side wall below the cylindrical body. An oil inlet hole is arranged at the lower end of the stove core body, and the oil inlet hole is communicated with the oil outlet hole of the oil valve switch through a pipeline. A fan access port is arranged below the stove core body, and two adjacent layers of the air inlet holes are arranged staggeredly. The energy-saving bio-alcohol oil fuel stove core of this invention has a simple and reasonable structure, effectively reduces heat energy waste, and has a better effect when used in combination with bio-alcohol-based fuel. It can give full play to the advantages of bio-alcohol-based fuel, can reduce the fuel cost of users by 40-70%, and greatly relieve the tense situation of civil fuel supply.

[0006] Chinese Patent Application for Invention CN201410361749 relates to a double-inlet oil-saving fuel stove core, including a cylindrical outer core and a conical inner core. The height of the inner core is greater than that of the outer core. At least three layers of air inlet holes inclined at a certain angle in the counterclockwise direction are uniformly arranged on the side wall of the outer core. The lower end of the inner core is respectively connected with a first oil inlet pipe and a second oil inlet pipe on both sides, and a fan air inlet is arranged below the outer core. The double-inlet oil-saving fuel stove core of this invention has a reasonable design, is convenient to use, effectively reduces heat energy waste, and has a better effect when used in combination with bio-alcohol-based fuel. It can give full play to the advantages of bio-alcohol-based fuel and can reduce the fuel cost of users by 40-70%.

[0007] Chinese Patent Application for Invention CN202110387141 relates to an environmentally friendly bio-alcohol oil furnace core, including a furnace core housing and a furnace core. The furnace core is installed in the inner cavity of the furnace core housing. The furnace core includes an atomization device, a bracket, a wind guide cylinder and a blowing device. Ventilation holes for supplying ventilation are opened on the low-end side wall of the furnace core housing. The atomization device and the blowing device are fixed in the inner cavity of the furnace core housing through the bracket, and the atomization device is located above the blowing device. The blowing device includes a fixed frame, a cross bracket, a spiral fan blade and a driving device. The driving device is fixed on the fixed frame through the cross bracket, the spiral fan blade is fixed on the output shaft of the driving device by screws, and a wind guide cylinder is welded on the upper end side wall of the fixed frame. This environmentally friendly bio-alcohol oil furnace core has a simple structure, can fully burn fuel, and is energy-saving and environmentally friendly.

[0008] All of the above-mentioned furnace cores for environmentally friendly bio-alcohol oil, without exception, involve improvements to the ventilation of the furnace core, rather than the research and development and improvement of the structure of the furnace core itself.

[0009] Therefore, for the combustion of environmentally friendly bio-alcohol oil, there is a need in the art for a more excellent furnace core and stove. Summary of the Invention

[0010] The present invention provides a stove for burning environment-friendly bio-ethanol oil. The stove includes a container for accommodating the environment-friendly bio-ethanol oil and a furnace core. The furnace core includes a metal mesh body and a cladding plate. The metal mesh body includes one layer of metal mesh cloth or multiple layers of metal mesh cloth arranged in contact with each other. The cladding plate is disposed on one or both sides in the thickness direction of the metal mesh body. In the vertical direction, the furnace core includes an oil absorption end at the lower part for immersing in the environment-friendly bio-ethanol oil and an ignition end at the upper part for exposing above the oil liquid level. At the ignition end, the top height of the cladding plate is set at least at one position to be different from the top height of the metal mesh body, so that at least one ignition port is provided at the ignition end, and at the ignition port, both sides in the thickness direction of the metal mesh body do not cover the cladding plate. Preferably, at the ignition port, the top height of the cladding plate is set lower than the top height of the metal mesh body. Preferably, the stove can be fixedly arranged in the container.

[0011] In a specific embodiment, the metal mesh body includes 2 to 4 layers of metal mesh cloth arranged in contact with each other.

[0012] In the present invention, more preferably, the metal mesh body 1 only includes 2 layers of metal mesh cloth arranged in contact with each other, which can achieve the best combustion effect. Moreover, the metal mesh body composed of 2 to 4 layers of metal mesh cloth can significantly save the metal mesh cloth material compared with the metal mesh body that often uses more than seven or eight layers of metal mesh cloth in the prior art, and thus greatly reduce the cost of the furnace core.

[0013] In a specific embodiment, there are multiple ignition ports, which are spaced apart at the ignition end, and the width of each ignition port is 1 to 10 mm, and the spacing distance between adjacent two ignition ports is 1 to 10 mm.

[0014] In a specific embodiment, the cladding plate and the metal mesh body are connected by spot welding in the thickness direction.

[0015] In a specific embodiment, at the ignition port, the top height of the cladding plate is 1 to 30 mm lower than the top height of the metal mesh body, so that the height of the ignition port is 1 to 30 mm, preferably 1 to 8 mm.

[0016] In the present invention, the height of the ignition port affects the size of the flame. Generally speaking, the larger the height of the ignition port, the stronger the flame, and the smaller the height of the ignition port, the weaker the flame. In the present invention, at the oil absorption end 3, the metal mesh body 1 and the cladding plate 2 are arranged flush or the bottom edges of the two are set to be close.

[0017] In a specific embodiment, the horizontal cross-section of the furnace core is circular, and the cladding plate is arranged on the radial outer side or the radial inner side of the metal mesh body. The metal mesh body includes multiple layers of metal mesh cloth arranged in a spiral shape or a concentric circular shape; preferably, an inner baffle is further arranged on the radial inner side of the metal mesh body, and the inner baffle is fixedly connected to the metal mesh body and / or the cladding plate.

[0018] In a specific embodiment, the cladding plate is a ceramic plate or a metal plate, preferably a stainless steel plate or a rustless iron plate.

[0019] In a specific embodiment, the metal mesh body is made of an alloy material. Preferably, the metal mesh body is an iron-chromium alloy, and the chromium content in the iron-chromium alloy is 10-30 wt%.

[0020] Specifically in the present invention, an iron-chromium alloy mesh cloth is preferably used. This alloy mesh cloth can be successfully formed into a mesh cloth with the required pores, and this alloy mesh cloth can withstand the temperature of the combustion of environmental protection bio-ethanol oil without any damage.

[0021] In a specific embodiment, the metal mesh cloth in the metal mesh body is in a mesh wire woven shape, and the mesh number of the metal mesh cloth is 100-500 meshes, and the diameter of the mesh wire is 0.1-1.5 mm.

[0022] In a specific embodiment, the stove further includes a container cover. Preferably, the container cover includes a tank cover, an inner seal cover and a top cover. More preferably, the stove further includes an oil lubricating pad arranged below the top cover and above the furnace core.

[0023] The present invention at least has the following beneficial effects:

[0024] 1. It is easy to ignite the environmental protection oil with an open flame or electronic ignition: The furnace core and the stove provided by the present invention are particularly easy to ignite the environmental protection bio-ethanol oil with an open flame; and in the prior art, the environmental protection bio-ethanol oil combustion furnace using a cotton core or an asbestos core simply cannot be ignited by electronic ignition, while the furnace core and the stove of the present invention can be used to ignite the environmental protection bio-ethanol oil by electronic ignition.

[0025] 2. The furnace core has a long service life and a stable flame: When the furnace core of the present invention burns, no carbonization or loss phenomenon will occur. Therefore, the furnace core can maintain a fixed height and length, so that the flame keeps burning continuously and stably.

[0026] 3. High combustion efficiency and thus fuel saving: To boil the same pot of water, the environmental protection bio-ethanol oil combustion furnace using the furnace core and the stove of the present invention saves 30%-40% of fuel compared with the environmental protection bio-ethanol oil combustion furnace using a cotton core, achieving significant energy conservation.

[0027] 4. Convenient for adjusting the firepower: In the present invention, the flame on the furnace core is neither a dot-shaped flame nor a surface-shaped flame, but a linear flame; moreover, the horizontal cross-sectional shape of the furnace core and the area involved in the combustion line can be adjusted arbitrarily, and the height of the burning flame can also be easily changed. Therefore, the furnace core and the stove described in the present invention are particularly convenient for adjusting the firepower and can achieve an ultra-high firepower.

[0028] 5. Can be cold lit repeatedly: After the furnace core and the stove of the present invention are extinguished for a period of time after the first combustion, it is not necessary to sprinkle environmentally friendly bio-ethanol oil on the top of the furnace core when subsequently lighting the furnace core and the stove. The furnace core and the stove can be cold lit repeatedly, and the ignition speed is fast each time.

[0029] Generally speaking, there are no consumable parts in the stove described in the present invention. The furnace core can be reused and the ignition speed is the fastest. The stove is energy-saving, safe and environmentally friendly. It is an unprecedented new technology in the field of environmentally friendly bio-ethanol oil combustion. The present invention can greatly accelerate the application of environmentally friendly bio-ethanol oil in a wider market and field. Description of the Drawings

[0030] Figure 1 It is a schematic diagram of an environmentally friendly oil fuel tank and its cotton furnace core in the prior art. In the figure, it is the state of the new tank before ignition.

[0031] Figure 2 It is a front view schematic diagram of the vertical plate-shaped furnace core in the first embodiment of the present invention.

[0032] Figure 3 It is a front view schematic diagram of the vertical plate-shaped furnace core in another embodiment of the present invention.

[0033] Figure 4 In the present invention Figure 3 The top view schematic diagram of the vertical plate-shaped furnace core shown.

[0034] Figure 5 In the present invention Figure 3 The top view schematic diagram of another form and structure of the vertical plate-shaped furnace core shown.

[0035] Figure 6 It is a schematic diagram of a cylindrical furnace core in another embodiment of the present invention.

[0036] Figure 7 It is a schematic diagram of another cylindrical furnace core in another embodiment of the present invention.

[0037] Figure 8 In the present invention Figure 6 or Figure 7 The schematic diagram of a metal mesh structure of the cylindrical furnace core in.

[0038] Figure 9 In the present invention Figure 6 orFigure 7 Schematic diagram of the structure of another metal mesh body of the middle cylindrical furnace core.

[0039] Figure 10 Schematic diagram of a vertical plate-shaped furnace core or a cylindrical furnace core of an embodiment of the present invention.

[0040] Figure 11 Schematic diagram of a vertical plate-shaped furnace core or a cylindrical furnace core of another embodiment of the present invention.

[0041] Figure 12 It is Figure 6 Photo of the furnace core shown burning in the environmentally friendly bio-ethanol oil contained in a beaker.

[0042] Figure 13 It is Figure 7 Photo of the furnace core shown burning in the environmentally friendly bio-ethanol oil contained in a metal can.

[0043] Figure 14 It is Figure 13 Photo of the combustion of the structure shown from another angle.

[0044] Figure 15 It is Figure 7 Photo of the furnace core shown burning in the environmentally friendly bio-ethanol oil contained in a cartridge stove.

[0045] Figure 16 Photo of the vertical plate-shaped furnace core burning in the environmentally friendly bio-ethanol oil contained in a container.

[0046] Figure 17 Explosion structure schematic diagram of the stove for burning the environmentally friendly bio-ethanol oil described in the present invention. Specific embodiments

[0047] In a specific embodiment, the present invention uses a ferritic chromium content of 10% to 30% to prepare a reticulated metal mesh cloth, the mesh structure has a mesh count of 100 to 500 meshes, and the wire diameter of the mesh is 0.1 to 1.5 mm. This structure can well adsorb the environmental protection oil, and its corrosion resistance, toughness and weldability increase with the increase of the chromium content. The stress corrosion resistance of chloride is better than that of other types of steel. Because of the high chromium content, the ferritic alloy mesh has relatively good corrosion resistance and oxidation resistance. This type of steel can resist the corrosion of the atmosphere, nitric acid and brine solutions, and has the characteristics of strong high-temperature oxidation resistance and small thermal expansion coefficient. The alloy mesh body prepared into the furnace core has the characteristics of storing and maintaining heat, high temperature resistance, no deformation, oxidation resistance, corrosion resistance, etc.

[0048] The metal mesh cloth used for the metal mesh body described in the present invention can be directly obtained through commercial purchase, or obtained by commission processing, or self-purchased corresponding machinery and equipment and prepared according to the raw material ratio.

[0049] In a specific embodiment, the cladding plate of the present invention adopts a martensitic stainless iron structure, which is easy to process and has low cost. In the present invention, the metal mesh body is attached to the cladding plate to form a furnace core, so that the furnace core of the present invention can increase the overall self-absorbing oil function, and the environmental protection bio-ethanol oil is continuously self-pumped to the flame at the ignition end of the furnace core; in addition, the metal mesh body is attached to the cladding plate to form a furnace core, so that a sufficient amount of environmental protection bio-ethanol oil is evenly distributed on the metal mesh body of the furnace core for a long time in the present invention. Even if the furnace core has been extinguished for a long time, it can be quickly reignited with an open flame or even plasma electronic ignition next time.

[0050] Embodiment

[0051] Figure 1 It is a schematic diagram of an environmental protection oil fuel tank and its cotton furnace core in the prior art. In the figure, it is the state of the new tank without ignition. The states of one cotton core, two cotton cores and three cotton cores are shown in the figure. Each cotton core can be broken into two burning points. Therefore, the environmental protection oil fuel tank in the figure can form at most six burning points.

[0052] Figure 2 It is a front view schematic diagram of a vertical plate-shaped furnace core in the first embodiment of the present invention. Figure 2 The top view of the corresponding furnace core can be referred to Figure 4 or Figure 5 , but it is necessary to change the ignition ports intermittently arranged on the cladding plate in Figure 4 or Figure 5 to continuously arranged ignition ports.

[0053] Figure 3 It is a front view schematic diagram of a vertical plate-shaped furnace core in another embodiment of the present invention. Figure 4 In the present invention Figure 3 The top view schematic diagram of the vertical plate-shaped furnace core shown. Figure 5 In the present invention Figure 3 The top view schematic diagram of another form and structure of the vertical plate-shaped furnace core shown. In this embodiment, a plurality of ignition ports are arranged at intervals. After the flame is ignited at any one of the ignition ports, the flame will quickly spread to the entire ignition end. Figure 5 As shown, for the furnace core with cladding plates arranged on both sides in the thickness direction of the metal mesh body, and the plurality of ignition ports arranged on two different cladding plates are staggered. This method can make the environmental protection bio-ethanol oil at the ignition port keep for a longer time after the flame goes out. Even with only plasma electronic ignition, reigniting after the flame goes out becomes extremely simple.

[0054] Figure 6 It is a schematic diagram of a cylindrical furnace core in another embodiment of the present invention. Figure 7 It is a schematic diagram of another cylindrical furnace core in another embodiment of the present invention. Among them Figure 6The ignition port of the shown furnace core is a continuously arranged single one, while Figure 7 the ignition ports of the shown furnace core are multiple and intermittently arranged. Figure 6 In the shown manner, the ignition ends 4 of the entire furnace core form an interconnected ignition port. This furnace core structure has low processing requirements for the metal mesh body 1 and the cladding plate 2, high combustion efficiency, and the furnace core is easy to ignite, belonging to one of the most economical implementation methods.

[0055] Figure 8 This is Figure 6 or Figure 7 a schematic structural view of a metal mesh body of a cylindrical furnace core in the present invention. Figure 9 This is Figure 6 or Figure 7 a schematic structural view of another metal mesh body of a cylindrical furnace core in the present invention. Among them, Figure 8 and Figure 9 the shown metal mesh bodies both include two layers of metal mesh cloth, but Figure 8 is arranged in a spiral shape, Figure 9 is arranged in a concentric circular shape. These two methods have no difference in the combustion effect of the furnace core, but Figure 8 the method of Figure 9 will make the processing of the furnace core more convenient.

[0056] Figure 10 This is a schematic view of a vertical plate-shaped furnace core or a cylindrical furnace core of an implementation method in the present invention. Figure 11 This is a schematic view of a vertical plate-shaped furnace core or a cylindrical furnace core of another implementation method in the present invention. In Figure 10 and Figure 11 , although at least one ignition port 5 is formed at the ignition end 4 of the furnace core, since the top height of the cladding plate 2 is higher than the top height of the metal mesh body 1, the combustion of the furnace core will be limited to a certain extent. Specifically, the supply of combustion-supporting air is limited to a certain extent. Therefore, the combustion efficiency of the environmental protection bio-ethanol oil will be discounted. And because the function of the cladding plate 2 above the top height of the metal mesh body 1 is limited, more materials need to be consumed. Therefore, Figure 10 and Figure 11 the shown implementation methods do not belong to the preference of the present invention. Among them, Figure 10 in the shown implementation method, the top heights of the cladding plate 2, the ignition port 5, and the metal mesh body 1 decrease in sequence, so that an air hole 7 is formed above the ignition port 5. This air hole 7 can make the air supply speed acceptable, especially when the area of the ignition port 5 is large. Therefore, Figure 10 the furnace core ofFigure 11 In the illustrated embodiment, the top height of the ignition port 5 is flush with the top height of the metal mesh body 1, while the top height of the attaching plate 2 is higher. In this embodiment, the air supply ratio Figure 10 is worse than that in the [previous] method. Obviously, this furnace core is not as easy to ignite as other embodiments of the present invention.

[0057] Figure 12 is Figure 6 a photo of the illustrated furnace core burning in the environmentally friendly bio-ethanol oil placed in a beaker. Figure 13 is Figure 7 a photo of the illustrated furnace core burning in the environmentally friendly bio-ethanol oil placed in a metal can. Figure 14 is Figure 13 a burning photo of the illustrated structure from another angle. Figure 15 is Figure 7 a photo of the illustrated furnace core burning in the environmentally friendly bio-ethanol oil placed in a cartridge stove. Figure 16 is a photo of the vertical plate-shaped furnace core burning in the environmentally friendly bio-ethanol oil placed in a container.

[0058] Figure 17 is a schematic explosion structure diagram of the stove for burning the environmentally friendly bio-ethanol oil according to the present invention. As Figure 17 can be seen, the furnace core used therein is the Figure 6 illustrated furnace core, which specifically includes a metal mesh body 1 and an attaching plate 2. The stove further includes a container 8 for accommodating the environmentally friendly bio-ethanol oil. Preferably, the stove further includes a container lid. Further, the container lid includes a can lid 91, an inner sealing lid 92 for fixing the furnace core, and a top lid 93. Further, the stove further includes a lubricating oil pad 94 disposed below the top lid and above the furnace core. The stove for burning the environmentally friendly bio-ethanol oil is provided with a tank structure. After the container and the container lid are cooperatively sealed, the environmentally friendly bio-ethanol oil accommodated therein can be prevented from leaking. Only when the stove for burning the environmentally friendly bio-ethanol oil is used for the first time, it is necessary to invert the tank body so that the environmentally friendly bio-ethanol oil fully wets the lubricating oil pad 94, and the lubricating oil pad 94 can fully wet the ignition end 4 of the furnace core. Then, the container lid is opened, and the stove is ignited for the first time. The stove and the furnace core according to the present invention can be easily cold-ignited for the second time after extinguishing, without the need to sprinkle the environmentally friendly bio-ethanol oil from the ignition end. Therefore, this tank-type stove structure is very convenient for users.

[0059] In the present invention, due to the characteristics of the environmental protection bio-ethanol oil itself, it is determined that the flame on the furnace core cannot spread downward until the entire liquid surface of the environmental protection bio-ethanol oil in the container is ignited. The combustion flame of the environmental protection bio-ethanol oil only occurs on the furnace core and exists at the ignition end of the furnace core. In addition, if only one layer of wire mesh cloth is included in the wire mesh body 1 in the present invention and the cladding plate is only covered on one side in the thickness direction of the wire mesh body, the combustion of this furnace core is difficult to sustain and the flame is easily extinguished naturally. Therefore, if only one layer of wire mesh cloth is included in the wire mesh body of the present invention, generally the cladding plates will be covered on both sides in the thickness direction of the wire mesh body. However, more preferably, the wire mesh body includes two or more layers of wire mesh cloth arranged in contact with each other. In this way, covering the cladding plate on one side or both sides in the thickness direction of the wire mesh body can achieve the best combustion effect and cold ignition effect.

[0060] In addition, in the present invention, the ignition end 4 (or the horizontal cross-section of the furnace core) of the furnace core can be integrally set as a spiral shape, a square maze shape, a sleeve ring shape, etc., so that the area covered by the horizontal cross-section of the furnace core in the present invention can be adjusted arbitrarily and can be larger. The horizontal cross-section of the furnace core can cover the liquid surface of the environmental protection bio-ethanol oil in the entire stove, or even a larger area, forming a fierce-fire type stove, and can also make the stove containing this furnace core heat the object above the flame more evenly, fully and quickly. Therefore, due to the invention of the furnace core in the present invention, the corresponding stove is also expected to replace the liquefied gas stoves, natural gas stoves, fuel stoves, etc. in existing household kitchens and hotel kitchens.

[0061] In addition, different from one or more dot-shaped flames of liquefied gas stoves, natural gas stoves and environmental protection bio-ethanol oil stoves with cotton wicks, and also different from surface-shaped flames of directly burning liquid alcohol, solid alcohol, gasoline or diesel, etc., the furnace core in the present invention forms a continuous linear flame. Whether its ignition ports are arranged at intervals as Figure 7 or are continuously integrally arranged as Figure 6 the flame formed at the ignition end of this furnace core is linear, enabling the furnace core in the present invention to achieve a better balance between energy conservation and combustion firepower, and also making the environmental protection bio-ethanol oil corresponding to the furnace core in the present invention have high combustion efficiency and the firepower size can be designed and adjusted arbitrarily.

[0062] In the present invention, it is only necessary to keep the wire mesh body 1 and the cladding plate 2 in abutting contact. The tension of the wire mesh body 1 or the cladding plate 2 itself can be used to make the two abut against each other in the thickness direction, or the two can be fixed together by welding or pasting, etc., which is not limited in the present invention.

[0063] Comparative example

[0064] Although in the field of burning environmentally friendly bio - alcohol fuel, the prior art always uses cotton wicks or asbestos wicks, in the field of burning other fuels, the applicant has retrieved cases of using metal wicks. For example, Patent CH292239A provides a metal mesh wick formed by multiple layers of spirals coiled together, and Patent GB693123A provides an improved kerosene wick and burner, which also uses a metal wick. However, it is clearly stated in the right - hand column on the first page of Patent GB693123A that: The initial lighting of a metal wick is usually more difficult than that of an ordinary fabric wick or an asbestos wick. It may be necessary to keep the match in contact with the metal wick for a slightly longer time than with a fabric wick. In some cases, a guiding lamp can be provided near the ignition area of the wick.

[0065] As is known to those skilled in the art, for environmentally friendly bio - alcohol fuel, even when using an open flame or a large fire, it is almost impossible to light the oil without a wick, and it is already quite difficult to light it with an ordinary fabric wick or an asbestos wick. If a metal wick is used, will it be even more difficult to light as described in Patent GB693123A?

[0066] The inventor of this application first tried to use a method similar to that in Patent CH292239A to coil an iron - chromium alloy mesh cloth into a metal mesh wick in multiple layers of spirals. Experiments found that for environmentally friendly bio - alcohol fuel, this wick is easier to light than a cotton wick. However, a problem was immediately discovered, that is, when the flame has been extinguished for some time, if one wants to re - ignite the metal wick by cold ignition, it becomes quite difficult. Subsequently, through many experiments, the inventor found that if the number of layers of the metal mesh cloth in the metal mesh body is controlled to be only 2 - 4 layers, and a cladding plate and an ignition port are provided on one or both sides in the thickness direction of the metal mesh body, when the flame on the environmentally friendly bio - alcohol fuel wick has been in an extinguished state for a long time, the wick has completely cooled and the content of environmentally friendly bio - alcohol on the metal mesh body remains basically constant, the corresponding wick can still be easily lit. That is to say, compared with the solution of coiling a metal mesh cloth in multiple layers of spirals into a metal mesh wick, the present invention successfully solves the problem of secondary cold ignition of the wick. The inventor analyzed that after the metal mesh wick formed only by coiling multiple layers of metal mesh cloth is extinguished, the environmentally friendly bio - alcohol at the top of the metal mesh body is affected by volatilization and other factors, resulting in insufficient distribution at the top of the wick. Therefore, re - ignition becomes much more difficult than the first ignition (when the first ignition is fully wetted with environmentally friendly oil). At this time, it is necessary to pour environmentally friendly bio - alcohol onto the top of the wick again to make the wick ignite again. This will obviously greatly limit the application of the wick. The added cladding plate and ignition port in the present invention successfully solve this problem.

[0067] In the present invention, after the furnace core is ignited, the wire mesh body at the ignition end will be burned red, enabling the environmental protection oil to burn continuously and endowing the furnace core with a certain windproof ability so that it cannot be extinguished by gentle blowing. Since the structure of the wire mesh cloth in the wire mesh body of the present invention is fixed and arranged regularly, unlike the structure of a cotton wick which is chaotic, during combustion, the environmental protection oil is stably transported from bottom to top. The data obtained through testing shows that compared with the traditional cotton wick, under the same weight of environmental protection oil fuel and the same firepower, the combustion time of the furnace core of the present invention can be increased by 30%, that is, compared with the cotton wick, it can boil water with a weight 1.3 times that of the cotton wick. In the present invention, the wire mesh body uses an iron-chromium alloy material, and the ignition point of this material is about 3000 °C, while the temperature during the combustion of the environmental protection oil is generally lower than 2000 °C. Therefore, even after repeated combustion and use, this wire mesh body does not deform and has no loss. In addition, both the wire mesh body and the covering plate have a certain hardness, toughness and weldability. Therefore, the wire mesh body and the covering plate can be prepared into furnace cores of various different shapes together, and different flame shapes are formed after ignition, such as circular, heart-shaped, square, toothed and irregular shapes, etc. The furnace core and the stove of the present invention can completely replace commonly used alcohol stoves, cartridge stoves, liquefied gas stoves and outdoor stoves, etc. In addition, the environmental protection bio-ethanol oil is very cheap. For example, at a certain firepower level, 50 grams of environmental protection oil can burn for about 70 minutes. Its combustion efficiency is higher than that of alcohol and is also 30% higher than the combustion efficiency of the environmental protection bio-ethanol oil tank with a cotton wick in the prior art. Moreover, the environmental protection oil is colorless and odorless during combustion. Therefore, it can be expected that the invention of the furnace core of the present invention will make the application of the environmental protection bio-ethanol oil more popular and extensive.

[0068] Generally speaking, compared with the wicks or furnace cores for burning environmental protection bio-ethanol oil in the prior art, the furnace core of the present invention has no loss, is easy to ignite every time, and has a higher combustion effect on the environmental protection bio-ethanol oil.

[0069] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. An environmentally friendly cooking stove for burning bio - alcohol fuel, characterized in that, The stove includes a container (8) for containing environmentally friendly bio-ethanol oil and a furnace core. The furnace core includes a metal mesh body (1) and a cladding plate (2). The metal mesh body (1) includes one layer of metal mesh cloth (11) or 2 to 4 layers of metal mesh cloth (11) arranged in contact. When the metal mesh body (1) includes one layer of metal mesh cloth (11), the cladding plate (2) is arranged on both sides in the thickness direction of the metal mesh body (1); when the metal mesh body (1) includes 2 to 4 layers of metal mesh cloth (11) arranged in contact, the cladding plate (2) is arranged on one side or both sides in the thickness direction of the metal mesh body (1); the furnace core includes an oil absorption end (3) at the lower part in the vertical direction for immersing in the environmentally friendly bio-ethanol oil and a ignition end (4) at the upper part for exposing above the oil liquid level. And at the ignition end (4), the top height of the cladding plate (2) is set to be different from the top height of the metal mesh body (1) at at least one position, so that at least one ignition port (5) is provided at the ignition end (4), and at the ignition port (5), the cladding plate (2) does not cover both sides in the thickness direction of the metal mesh body (1); the metal mesh body (1) is made of iron-chromium alloy, and the chromium content in the iron-chromium alloy is 10 to 30 wt%; the metal mesh cloth in the metal mesh body (1) is in a mesh wire woven shape, and the mesh number of the metal mesh cloth is 100 to 500 meshes, and the wire diameter of the mesh wire is 0.1 to 1.5 mm; the cladding plate (2) is a metal plate; the cladding plate (2) and the metal mesh body (1) are connected by spot welding in the thickness direction.

2. The cooking stove for burning environmentally friendly bio-ethanol oil according to claim 1, characterized in that, At the ignition port (5), the top height of the cladding plate (2) is set to be lower than the top height of the metal mesh body (1).

3. The cooking stove for burning environmentally friendly bio-ethanol oil according to claim 1, characterized in that, There are multiple ignition ports (5), which are spaced apart on the ignition end (4), and the width of each ignition port (5) is 1 to 10 mm, and the spacing distance between adjacent two ignition ports is 1 to 10 mm.

4. The cooking stove for burning environmentally friendly bio-ethanol oil according to claim 1, characterized in that, At the ignition port (5), the top height of the cladding plate (2) is 1 to 30 mm lower than the top height of the metal mesh body (1), so that the height of the ignition port (5) is 1 to 30 mm.

5. The cooking stove for burning environmentally friendly bio-ethanol oil according to claim 4, characterized in that, The height of the ignition port (5) is 1 to 8 mm.

6. The cooking stove for burning environment-friendly bio-ethanol oil according to claim 1, characterized in that The horizontal cross-section of the furnace core is circular, and the cladding plate (2) is arranged on the radial outer side or inner side of the metal mesh body (1). The metal mesh body (1) includes multiple layers of metal mesh cloth (11) arranged in a spiral shape or concentric circular shape; and an inner baffle (6) is also arranged on the radial inner side of the metal mesh body (1), and the inner baffle (6) is fixedly connected to the metal mesh body (1) and / or the cladding plate (2).

7. The cooking stove for burning the environment-friendly bio-ethanol oil according to any one of claims 1 to 6, characterized in that, The cladding plate (2) is a stainless steel plate or a stainless iron plate.

8. The cooking stove for burning environmentally friendly bio - alcohol fuel according to any one of claims 1 to 6, characterized in that, The stove further includes a container cover.

9. The cooking stove for burning environmentally friendly bio-ethanol oil according to claim 8, characterized in that, The container cover includes a tank cover (91), an inner seal cover (92) and a top cover (93).

10. The cooking stove for burning the environment-friendly bio-ethanol oil according to claim 9, characterized in that, The stove further includes an oil lubrication pad (94) arranged below the top cover (93) and above the furnace core.

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