A pressure alcohol stove

Abstract

The present invention discloses a pressure alcohol stove, comprising a stove body, an upper cover and a preheating tube, wherein the upper cover is arranged on the stove body, a gasification cavity is formed inside the stove body, the preheating tube passes through the upper cover, the bottom end of the preheating tube is arranged inside the stove body, and the top end is arranged above the upper cover, a preheating cavity is arranged on the periphery of the preheating tube, a spirally arranged spray hole is arranged on the upper cover, and an air injection hole for air injection premixing is arranged on the preheating tube, and an appropriate amount of alcohol is injected into the groove at the top and the stove body, and the alcohol in the preheating cavity is ignited to heat the preheating tube, and the preheating tube transfers heat to the alcohol inside the stove body, so that the alcohol volatilizes and sprays out from the spray hole at the top, and the preheated alcohol is ignited to form a spiral flame to continuously heat the preheating tube, and the whole process is continuously circulated, so that the alcohol stove is easy to burn, and the pressure alcohol stove also has the function of automatically pumping alcohol. Compared with the traditional alcohol stove, the power and efficiency of the alcohol stove are higher.

Description

Technical Field

[0001] The invention relates to the technical field of alcohol stoves, in particular to a pressure-type alcohol stove. Background Art

[0002] Most of the existing alcohol stoves have a semi-open micro-pressure structure in which alcohol is contained in the stove core or solid alcohol is used, and the stove core can be burned and used after being ignited.

[0003] For example, the existing patent with announcement number CN201820235940.2 discloses an alcohol stove, which adopts the following technical solution: an outer frame for supporting the object to be heated and an inner liner accommodated in the outer frame; the inner liner is an annular structure, including an outer ring liner shell, an inner ring liner shell and an annular cover plate, a gasification chamber blocked by the annular cover plate is formed between the inner and outer ring liner shells, an alcohol flow channel communicating with the gasification chamber is provided at the bottom of the inner ring liner shell, at least one jet hole is provided on the annular cover plate, and at least one combustion ring is provided on the annular cover plate, and each of the combustion rings is arranged in sequence from the inside to the outside relative to the central axis of the inner ring liner shell, and each of the combustion rings includes a plurality of the jet holes arranged in a ring relative to the central axis of the inner ring liner shell.

[0004] However, this type of alcohol stove generally has problems such as poor alcohol combustion effect, insufficient firepower, and poor fire gathering effect; whether it is boiling water or heating food, the speed is slow, affecting the outdoor cooking experience. Moreover, these alcohol stoves have relatively complex structures, relatively large size and weight, and are not suitable for outdoor carrying and use. Summary of the invention

[0005] The object of the present invention is to provide a pressure alcohol stove to solve the problems existing in the alcohol stove mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pressure alcohol stove, comprising a stove body, an upper cover and a preheating tube, wherein the upper cover is arranged on the stove body and cooperates with the stove body to form a vaporization cavity, the preheating tube passes through the upper cover and its bottom end is arranged in the stove body, and its top end has a section extending out of the upper cover, a preheating cavity is arranged on the periphery of the preheating tube, the upper cover is provided with spirally arranged spray holes, the preheating tube is provided with an air injection hole for air injection premixing, and an alcohol introduction hole (7) is provided at the bottom, and the number of the air injection hole and the alcohol introduction hole is at least one;

[0008] The automatic liquid inlet device includes two liquid level sensors, a controller and an alcohol pump, the two liquid level sensors are respectively arranged vertically on the side wall of the furnace body, the liquid inlet of the alcohol pump is connected to the alcohol bottle pipeline, and the liquid outlet is connected to the liquid inlet pipeline arranged on the side wall of the furnace body, the two liquid level sensors are electrically connected to the controller, and the controller is electrically connected to the alcohol pump;

[0009] The two liquid level sensors constitute a high and low liquid level sensor, which is used to sense the alcohol liquid level in the alcohol stove. When the alcohol liquid level in the alcohol stove is lower than the lowest liquid level, the low level sensor sends a signal to the controller, and the controller starts the alcohol pump through the electromagnetic relay to pump the alcohol in the alcohol bottle into the alcohol stove. When the alcohol liquid level in the stove reaches the highest liquid level, the high level sensor sends a signal to the controller to control the alcohol pump to stop pumping liquid.

[0010] In some preferred embodiments, the air ejection holes are provided on the preheating tube extending above the boss.

[0011] In some preferred embodiments, the air introduction holes are opened along the circumference of the preheating tube, and the air introduction holes are opened in at least one circle along the circumference of the preheating tube.

[0012] In some preferred embodiments, the middle portion of the upper cover is concave to form a preheating chamber for containing alcohol.

[0013] In some preferred embodiments, the middle position of the upper cover bulges upward, is higher than the surface of the upper cover and forms a boss, a through hole is opened in the middle position of the top of the boss, the lower end of the preheating tube passes through the through hole and is fixedly connected to the bottom of the furnace body, and the boss and the concave surface in the middle of the upper cover together constitute the preheating chamber.

[0014] In some preferred embodiments, the bottom of the furnace body has a raised collar at a position corresponding to the preheating tube, for fixing the lower end of the preheating tube.

[0015] In some preferred embodiments, the preheating chamber is not limited to being circular, but may also be polygonal.

[0016] In some preferred embodiments, in order to avoid overflow when adding alcohol into the preheating chamber, the top of the boss is higher than the highest upper surface outside the upper cover.

[0017] In some preferred embodiments, the spray hole is opened on the outer wall of the preheating chamber and is located at a position of the outer wall close to the upper surface of the upper cover, and at least one spray hole is opened.

[0018] In some preferred embodiments, a circle of the spray holes is formed on the outer wall of the preheating chamber at equal intervals along the circumferential direction, and the nozzles of the spray holes are all directed toward the preheating tube arranged in the middle. The spray holes have a certain angle in the horizontal direction, and the angle is 8-15 degrees, so that the sprayed gas can be in a cyclone shape.

[0019] In some preferred embodiments, the outer side wall of the preheating chamber is provided with several circles of the spray holes at equal intervals along the circumferential direction, and the spray holes on adjacent circles are arranged in a staggered manner.

[0020] In some preferred embodiments, the alcohol stove is further provided with a handle on the stove body for the convenience of carrying by the user, and the handle is covered with a heat insulating sleeve.

[0021] In some preferred embodiments, a transparent observation window is further provided on the furnace body wall of the alcohol stove, so that the alcohol liquid level in the furnace body can be conveniently observed from the outside.

[0022] In some preferred embodiments, an alcohol filling port is further provided on the furnace body wall of the alcohol stove, the filling port is connected to a filling pipe, and the top of the filling pipe is higher than the top of the furnace body of the alcohol stove.

[0023] In some preferred embodiments, a cover plate is further provided on the top of the filling pipe.

[0024] In some preferred embodiments, the cover plate is movably connected to the top of the filling pipe via a pin structure, and this structure facilitates opening and closing of the cover plate.

[0025] In some preferred embodiments, the cover plate is made of rubber and has a hoop section. The hoop section of the cover plate can be clamped around the top pipe opening of the filling pipe. This structure has better sealing performance.

[0026] In some preferred embodiments, the furnace body and the upper cover are made of one of stainless steel, glass, and aluminum alloy, and the preheating tube is made of one of stainless steel, aluminum alloy, copper, or copper alloy.

[0027] In some preferred embodiments, the edge of the upper cover is connected to the furnace body by riveting, and the preheating tube has a circle of convex edges, which are riveted to the edges of the through holes on the upper cover.

[0028] In some preferred embodiments, in order to facilitate cleaning and maintenance, a buckle is provided on the furnace body, the upper cover has an edge for the buckle to be fastened, and the furnace body and the upper cover are connected by the buckle.

[0029] In some preferred embodiments, a sealing ring is further provided between the furnace body and the upper cover.

[0030] When in use, add alcohol into the furnace body of the alcohol stove through the filling port, check through the observation window that the alcohol liquid level is within the high and low scale lines, add alcohol to the preheating chamber on the top, ignite the alcohol in the preheating chamber to heat the middle preheating tube, and the preheating tube transfers heat to the alcohol inside the furnace body of the alcohol stove to accelerate the volatilization of the alcohol inside the furnace body, and the alcohol vapor is ejected from the top spray hole. Since the ejected gas is in a cyclone shape, its flame rises in a spiral shape and continues to heat the preheating tube. The whole process is continuously circulated, so that the stove continues to accelerate the volatilization of the alcohol inside the furnace body after the preheating is completed. The preheating tube is provided with an air injection hole, and air enters through the air injection hole. A positive pressure environment is formed inside the furnace body to accelerate the jetting of the spray hole, and the spiral flame and air premixing will be more complete and the power is greater. Compared with the traditional alcohol stove, the alcohol stove of this invention has higher power and efficiency.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention injects an appropriate amount of alcohol into the groove at the top and the furnace body, ignites the alcohol in the preheating chamber to heat the preheating tube, and the preheating tube transfers heat to the alcohol inside the furnace body to accelerate the volatilization of the alcohol inside the furnace body. The alcohol vapor is ejected from the top spray hole. Since the ejected gas is in a cyclone shape, its flame rises in a spiral shape and continues to heat the preheating tube. The whole process is continuously circulated, so that the furnace continues to accelerate the volatilization of the alcohol inside the furnace body after the preheating is completed. The preheating tube is provided with an air injection hole, and air enters through the air injection hole. A positive pressure environment is formed inside the furnace body to accelerate the ejection of the spray hole, and the spiral flame and air premixing will be more sufficient and more powerful. Compared with the traditional alcohol stove, the power and efficiency of the alcohol stove are higher; 2. The alcohol stove of the present invention has a compact structure, is easy to assemble, and is easy to carry, which increases the convenience of outdoor use of the alcohol stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] like Figures 1-2 As shown, the present invention provides a technical solution:

[0038] A pressure alcohol stove, comprising a stove body 1, an upper cover 2 and a preheating tube 3, wherein the upper cover 2 is disposed on the stove body 1 and cooperates with the stove body 1 to form a vaporization cavity, the preheating tube 3 passes through the upper cover 2 and its bottom end is placed in the stove body 1, and its top end has a section extending out of the upper cover 2, a preheating cavity 4 is arranged on the periphery of the preheating tube 3, the upper cover 2 is provided with a spirally arranged spray hole 5, the preheating tube 3 is provided with an air injection hole 6 for air injection premixing, and an alcohol introduction hole 7 is provided at the lower part, and the number of the air injection hole 6 and the alcohol introduction hole 7 is at least one;

[0039] In some preferred embodiments, the automatic liquid filling device includes two liquid level sensors 10, 11, a controller 12 and an alcohol pump 13, the two liquid level sensors 10, 11 are respectively arranged vertically on the side walls of the furnace body, the liquid inlet of the alcohol pump 13 is connected to the alcohol bottle pipeline, and the liquid outlet is connected to the liquid inlet pipeline arranged on the side wall of the furnace body, the two liquid level sensors 10, 11 are electrically connected to the controller 12, and the controller 12 is electrically connected to the alcohol pump 13; the liquid level information is transmitted to the controller by the liquid level sensor, when the liquid level is low, the controller controls the opening of the alcohol pump, when the liquid level reaches the highest level, the controller controls the closing of the alcohol pump, thereby realizing the self-service liquid filling of the alcohol stove and improving the intelligent effect of the alcohol stove.

[0040] In some preferred embodiments, the two liquid level sensors 10 and 11 form high and low liquid level sensors for sensing the alcohol liquid level in the alcohol stove. When the alcohol liquid level in the alcohol stove is lower than the minimum liquid level, the low level sensor sends a signal to the controller 12. The controller 12 starts the alcohol pump 13 through the electromagnetic relay to pump the alcohol in the alcohol bottle into the alcohol stove. When the alcohol liquid level in the stove reaches the maximum liquid level, the high level sensor sends a signal to the controller 12 to control the alcohol pump 13 to stop pumping liquid.

[0041] In some preferred embodiments, the air ejection hole 6 is provided on the preheating tube 3 extending above the boss 9 .

[0042] In some preferred embodiments, the air introduction holes 6 are opened along the circumference of the preheating tube 3 , and the air introduction holes 6 are opened in at least one circle along the circumference of the preheating tube 3 .

[0043] In some preferred embodiments, the middle portion of the upper cover 2 is concave to form a preheating chamber 4 for containing alcohol.

[0044] In some preferred embodiments, the middle position of the upper cover 2 bulges upward, is higher than the surface of the upper cover 2 and forms a boss 9, a through hole 8 is opened in the middle position of the top of the boss 9, the lower end of the preheating tube 3 passes through the through hole 8 and is fixedly connected to the bottom of the furnace body 1, and the boss 9 and the concave surface in the middle of the upper cover 2 together constitute the preheating chamber 4.

[0045] In some preferred embodiments, a raised collar 14 is provided at the bottom of the furnace body at a position corresponding to the preheating tube, for fixing the lower end of the preheating tube.

[0046] In some preferred embodiments, the preheating chamber 4 is not limited to being circular, but may also be polygonal for ease of use.

[0047] In some preferred embodiments, in order to avoid overflow when adding alcohol into the preheating chamber 4 , the top of the boss 9 is higher than the highest upper surface outside the upper cover 2 .

[0048] In some preferred embodiments, the spray hole 5 is opened on the outer wall of the preheating chamber 4 and is located at a position of the outer wall close to the upper surface of the upper cover 2, and at least one spray hole 5 is opened.

[0049] In some preferred embodiments, a circle of the spray holes 5 are provided at equal intervals along the circumferential direction on the outer wall of the preheating chamber 4, and the nozzles of the spray holes 5 are all directed toward the preheating tube 3 arranged in the middle, and the spray holes 5 have a certain angle in the horizontal direction, and the angle is 8-15 degrees, preferably 10 degrees, which can make the sprayed gas present a cyclone shape, thereby improving the use effect of the alcohol stove.

[0050] In some preferred embodiments, the outer wall of the preheating chamber 4 is provided with several circles of the spray holes 5 at equal intervals along the circumferential direction, and the spray holes on adjacent circles are staggered.

[0051] In some preferred embodiments, the stove body 1 of the alcohol stove is further provided with a handle for the convenience of carrying by the user, and the handle is covered with a heat insulating sleeve.

[0052] In some preferred embodiments, a transparent observation window is further provided on the wall of the furnace body 1 of the alcohol stove, so that the alcohol liquid level in the furnace body 1 can be conveniently observed from the outside.

[0053] In some preferred embodiments, an alcohol filling port is further provided on the wall of the furnace body 1 of the alcohol stove, and the filling port is connected to a filling pipe, and the top of the filling pipe is higher than the top of the furnace body 1 of the alcohol stove.

[0054] In some preferred embodiments, a cover plate is further provided on the top of the filling pipe.

[0055] In some preferred embodiments, the cover plate is movably connected to the top of the filling pipe via a pin structure, and this structure facilitates opening and closing of the cover plate.

[0056] In some preferred embodiments, the cover plate is made of rubber and has a hoop section. The hoop section of the cover plate can be clamped around the top pipe opening of the filling pipe. This structure has better sealing performance.

[0057] In some preferred embodiments, the furnace body 1 and the upper cover 2 are made of one of stainless steel, glass, and aluminum alloy, and the preheating tube 3 is made of one of stainless steel, aluminum alloy, copper, or copper alloy.

[0058] In some preferred embodiments, the edge of the upper cover 2 is connected to the furnace body 1 by riveting, and the preheating tube 3 has a circle of convex edges, which are riveted to the edges of the through holes 8 on the upper cover 2.

[0059] In some preferred embodiments, in order to facilitate cleaning and maintenance, a buckle is provided on the furnace body 1, and the upper cover 2 has an edge for the buckle to be fastened, and the furnace body 1 and the upper cover 2 are connected by the buckle.

[0060] In some preferred embodiments, a sealing ring is further provided between the furnace body 1 and the upper cover 2. The sealing ring is made of silicone rubber, nitrile rubber or natural rubber. The rubber material has outstanding corrosion resistance, excellent resilience, insulation, water-proofing and plasticity, and the processed rubber also has valuable properties such as oil resistance, heat resistance, pressure resistance and wear resistance, which can extend the service life of the device.

[0061] When in use, add alcohol into the furnace body 1 of the alcohol stove through the filling port, check through the observation window that the alcohol liquid level is within the high and low scale lines, add alcohol to the preheating chamber 4 at the top, ignite the alcohol in the preheating chamber 4 to heat the middle preheating tube 3, and the preheating tube 3 transfers heat to the alcohol inside the furnace body 1 of the alcohol stove to accelerate the volatilization of the alcohol inside the furnace body 1, and the alcohol vapor is ejected from the top spray hole 5. Since the ejected gas is in a cyclone shape, its flame rises in a spiral shape and continues to heat the preheating tube 3. The whole process is continuously circulated, so that the stove continues to accelerate the volatilization of the alcohol inside the furnace body 1 after the preheating is completed. The preheating tube 3 is provided with an air introduction hole 6, and air enters through the air introduction hole 6. A positive pressure environment is formed inside the furnace body 1 to accelerate the jetting of the spray hole 5, and the spiral flame and air premixing will be more sufficient and the power is greater. Compared with the traditional alcohol stove, the power and efficiency of the alcohol stove are higher.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure alcohol stove, characterized in that: The invention comprises a furnace body (1), an upper cover (2), a preheating tube (3) and an automatic liquid inlet device, wherein the upper cover (2) is arranged on the furnace body (1) and cooperates with the furnace body (1) to form an alcohol vaporization cavity, the preheating tube (3) passes through the upper cover (2) and its bottom end is placed in the furnace body (1), and its top end has a section extending out of the upper cover (2), a preheating cavity (4) is arranged on the periphery of the preheating tube (3), the upper cover (2) is provided with spirally arranged spray holes (5), the upper part of the preheating tube (3) is provided with an air injection hole (6) for air injection premixing, and the lower part is provided with an alcohol introduction hole (7); The automatic liquid inlet device comprises two liquid level sensors (10, 11), a controller (12) and an alcohol pump (13); the two liquid level sensors (10, 11) are respectively arranged vertically on the side wall of the furnace body (1) in an upper and lower direction; the liquid inlet of the alcohol pump (13) is connected to the alcohol bottle pipeline, and the liquid outlet is connected to the liquid inlet pipeline arranged on the side wall of the furnace body (1); the two liquid level sensors (10, 11) are electrically connected to the controller (12), and the controller (12) is electrically connected to the alcohol pump (13).

2. A pressure alcohol stove according to claim 1, characterized in that: The middle position of the upper cover (2) protrudes upwards, is higher than the surface of the upper cover (2) and forms a boss (9), a through hole (8) is opened in the middle position of the top of the boss (9), and the lower end of the preheating tube (3) passes through the through hole (8) and is fixedly connected to the bottom of the furnace body (1).

3. A pressure alcohol stove according to claim 2, characterized in that: The concave middle portion of the upper cover (2) and the boss (9) together form the preheating chamber (4).

4. A pressure alcohol stove according to claim 3, characterized in that: The air ejection hole (6) is arranged on the preheating tube (3) extending above the boss (9).

5. A pressure alcohol stove according to claim 2, characterized in that: The edge of the upper cover (2) is connected to the furnace body (1) by riveting, and the preheating tube (3) has a circle of convex edges, and the convex edges are riveted to the edges of the through holes (8) on the upper cover (2).

6. A pressure alcohol stove according to claim 1, characterized in that: The furnace body (1) and the upper cover (2) are made of one of stainless steel, glass and aluminum alloy, and the preheating tube (3) is made of one of stainless steel, aluminum alloy, copper or copper alloy.

7. A pressure alcohol stove according to claim 1, characterized in that: The air introduction holes (6) are opened along the circumference of the preheating tube (3), and the air introduction holes (6) are opened in at least one circle along the circumference of the preheating tube (3).

8. A pressure alcohol stove according to claim 3, characterized in that: The outer wall of the preheating chamber (4) is provided with a circle of spray holes (5) at equal intervals along the circumferential direction, and the spray holes (5) all face the preheating tube (3) arranged in the middle, and the spray holes (5) have a certain angle in the horizontal direction, and the angle is 8-15 degrees.

9. A pressure alcohol stove according to claim 3, characterized in that: The outer wall of the preheating chamber (4) is provided with a plurality of circles of spray holes (5) at equal intervals along the circumferential direction, and the spray holes on adjacent circles are arranged in a staggered manner.

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