Methanol combustion furnace

Abstract

The utility model relates to a methanol combustion furnace, which belongs to the technical field of heating equipment and comprises a furnace body, a fuel tank, a combustion nozzle, an exhaust pipe, a partition plate and a vacuum machine. A fuel tank for storing fuel is fixed in an inner cavity of the furnace body. The combustion nozzle is installed on the fuel tank and used for spraying out fuel and combusting the fuel. The exhaust pipe is inserted into the through hole in the top of the furnace body, communicated with the inner cavity of the furnace body, used for guiding out heat and used as air to enter an inlet of the inner cavity of the furnace body. The partition plate horizontally penetrates through the side wall of the furnace body in a sliding mode, the through hole in the top of the furnace body is sealed by sliding the partition plate, and air is prevented from entering an inner cavity of the furnace body. The vacuum machine is installed outside the side wall of the furnace body, and the output end of the vacuum machine is communicated with the inner cavity of the furnace body through a connecting pipe and used for vacuumizing the inner cavity of the furnace body. Through cooperation of the partition plate and the vacuum machine, the inner cavity of the furnace body is closed and vacuumized, so that a fire source is rapidly extinguished, and the problems that when an existing methanol combustion furnace has a combustion accident, the fire source is difficult to control, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of heating equipment, and in particular relates to a methanol combustion furnace. Background Art

[0002] Methanol has a wide range of uses. It is a basic organic chemical raw material and high-quality fuel. It is mainly used in the fields of fine chemicals, plastics, etc. It is used to manufacture a variety of organic products such as formaldehyde, acetic acid, methyl chloride, methylamine, dimethyl thioester, etc. It is also one of the important raw materials for pesticides and medicines. Since methanol is more environmentally friendly as a fuel, its complete combustion only produces carbon dioxide and water, and the heat generated during the combustion process can be used for heating. Therefore, methanol combustion furnaces for heating purposes have been widely used. Methanol combustion furnaces are small and medium-sized heating equipment and are suitable for distributed heating without centralized heating. The existing methanol combustion furnace mainly includes a furnace body, a methanol fuel tank installed in the furnace body, a combustion nozzle connected to the methanol fuel tank, and an exhaust pipe connected to the combustion chamber in the furnace body for collecting heat and exhausting heat. By injecting methanol into the fuel tank in the combustion furnace and igniting the combustion nozzle connected to the fuel tank, methanol burns in the combustion chamber to generate heat, and the heat is collected and directed to the heating space through the exhaust pipe.

[0003] The existing methanol combustion furnace has certain safety hazards. That is, during the combustion process of the methanol furnace, if a combustion accident occurs, the fire source needs to be quickly controlled. Due to the lack of corresponding fire control devices, it is difficult to quickly extinguish the fire source. At the same time, the existing methanol combustion furnace generally realizes combustion through the air that naturally enters the furnace. The air flow is small, and there is a problem of incomplete combustion, which causes methanol waste and reduces the combustion efficiency of methanol. Summary of the invention

[0004] Technical problem to be solved: In order to avoid the shortcomings of the prior art, the present invention provides a methanol combustion furnace, wherein a partition plate is slidably installed on the side wall of the furnace body of the methanol combustion furnace, and the partition plate is used to isolate the air entering the methanol combustion furnace; a vacuum machine is installed on the outside of the methanol furnace, and the output end of the vacuum machine is connected to the inner cavity of the combustion furnace, and is used to evacuate the inner cavity of the combustion furnace. The present invention quickly extinguishes the fire source through the cooperation of the partition plate and the vacuum machine, thereby solving the problem that the fire source is difficult to control and there are safety hazards when a combustion accident occurs in the existing methanol combustion furnace.

[0005] The technical scheme of the present invention is: a methanol combustion furnace, comprising a furnace body, a fuel tank, a combustion nozzle, and an exhaust pipe; the internal cavity of the furnace body is fixed with a fuel tank for storing methanol fuel; the combustion nozzle is installed on the fuel tank and connected with the fuel tank for spraying fuel and burning; the top of the furnace body is provided with a through hole penetrating the internal cavity of the furnace body, and the exhaust pipe is fixedly inserted in the through hole for conducting heat from the furnace body and serving as an inlet for air to enter the furnace body;

[0006] The combustion furnace also includes a partition plate and a vacuum machine; the partition plate horizontally penetrates the side wall of the furnace body and is slidably connected to the side wall of the furnace body, the upper surface of the partition plate contacts the top surface of the internal cavity of the furnace body, and is used to close or open the through hole at the top of the furnace body by pushing the partition plate inward or pulling it outward; the vacuum machine is installed on the outer surface of the side wall of the furnace body, and the output end of the vacuum machine is fixedly connected to a connecting pipe, which penetrates the side wall of the furnace body and extends to the inner cavity of the furnace body.

[0007] A further technical solution of the present invention is: the exhaust pipe is a straight-through pipe, one end of the exhaust pipe is vertically inserted into the through hole at the top of the furnace body, fixedly and sealedly connected to the through hole, and a top cover is installed at the end of the other end of the exhaust pipe; the top cover includes a cover plate and a shaft portion, the shaft portion is inserted into the exhaust pipe, and the lower end surface of the cover plate is in contact with the top surface of the exhaust pipe; a plurality of exhaust holes are evenly distributed on the circumferential tube wall of the exhaust pipe, and the exhaust holes are used to discharge hot air in the furnace and for air to enter.

[0008] A further technical solution of the present invention is: a sealing plate is fixed on the top of the furnace body, a through hole matching the diameter of the exhaust pipe is provided in the center of the sealing plate, the exhaust pipe passes through the through hole of the sealing plate, and the outer wall of the exhaust pipe is sealed and connected to the through hole of the sealing plate.

[0009] A further technical solution of the present invention is: a partition plate is horizontally fixed to the internal cavity of the furnace body, and the partition plate separates the internal cavity of the furnace body into two independent upper and lower layers, the upper layer is a combustion chamber, and the lower layer is a storage chamber; the fuel tank is installed in the combustion chamber; the vacuum machine is connected to the combustion chamber; the upper layer is located on one side of the furnace body and is provided with a sealing door for opening and closing the combustion chamber; the lower layer is provided with a closing door, and the closing door is located below the sealing door for opening and closing the storage chamber.

[0010] A further technical solution of the present invention is: a drive motor is fixedly installed at the center position below the partition plate, the output end of the drive motor passes through the partition plate and extends to the combustion chamber, and a rotating blade is fixedly installed on the output shaft of the drive motor, and the rotating blade is located at the bottom of the combustion chamber.

[0011] A further technical solution of the present invention is: a fixing rod is horizontally installed in the storage chamber to fix the drive motor; the middle of the fixing rod is fixedly connected to the drive motor, and both ends of the fixing rod are fixed to the side walls on both sides of the storage chamber.

[0012] A further technical solution of the present invention is: a copper tube is installed through the side wall of the furnace body, one end of the copper tube located inside the furnace body is connected to the fuel tank, and the other end located outside the furnace body is installed with a sealing valve; the copper tube is used to add methanol fuel to the fuel tank.

[0013] A further technical solution of the present invention is: three combustion nozzles are arranged side by side on the fuel tank, and the three combustion nozzles have the same specifications.

[0014] A further technical solution of the present invention is that protective plates are installed on the outer walls on both sides of the furnace body for heat insulation protection.

[0015] A further technical solution of the present invention is: the material of the protective plate is heat insulation cotton.

[0016] Beneficial Effects

[0017] The beneficial effects of the present invention are as follows: the present invention provides a methanol combustion furnace, in which the inner cavity of the furnace body is a closed structure except for the access port of the exhaust pipe. By slidingly installing a partition plate on the side wall of the furnace body and pushing the partition plate into the furnace body, the through hole at the top of the inner cavity of the furnace body, that is, the access port of the exhaust pipe, can be closed, so that the inner cavity of the furnace body is sealed and air is blocked from entering the furnace combustion chamber through the exhaust pipe. In combination with a vacuum machine installed outside the side wall of the furnace body and connected to the furnace combustion chamber, the combustion chamber can be quickly evacuated, thereby quickly controlling the fire source in the combustion chamber, improving the safety of the methanol furnace and avoiding accidents. When the methanol combustion furnace is working normally, the partition plate is pulled out of the furnace body to open the through hole at the top of the furnace body connected to the exhaust pipe, which does not affect heat exhaust and air entry.

[0018] The present invention installs a copper tube on the side wall of the furnace body to connect the fuel tank, and installs a sealing valve on the outer end of the copper tube, which can ensure that methanol fuel is conveniently added to the fuel tank and can avoid fuel leakage during the use of the combustion furnace, thereby improving practicality.

[0019] The present invention installs protective plates made of heat-insulating cotton on the outer walls of both sides of the furnace body. On the one hand, it prevents the user from accidentally touching and scalding due to the excessively high surface temperature of the furnace body during heating; on the other hand, it can also prevent heat loss in the combustion furnace, and concentrate the heat into the heating space through the exhaust holes of the exhaust pipe.

[0020] The present invention provides a drive motor in the storage chamber in the furnace body, the output shaft of the drive motor extends into the bottom of the combustion chamber, and a rotating blade is fixedly installed on the output shaft of the drive motor. The drive motor drives the rotating blade to rotate at a high speed, driving air to flow upward, and the air flows to the combustion nozzle, thereby improving the combustion efficiency of the combustion nozzle, ensuring that the methanol sprayed from the combustion nozzle is completely and fully burned, and avoiding the waste of methanol. At the same time, the design of multiple exhaust holes on the exhaust pipe can also ensure that air effectively enters the combustion chamber, improving the uniformity of methanol combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the combustion furnace of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal installation parts of the furnace body and some components connected with the furnace body cavity of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the installation location of the partition board of the present invention.

[0025] Explanation of the accompanying drawings: 1. furnace body, 11. through hole, 12. sealing plate, 13. partition plate, 14. sealing door, 15. closing door, 16. fixing rod, 17. protective plate, 18. combustion chamber, 19. storage chamber, 2. fuel tank, 21. copper tube, 22. sealing valve, 3. combustion nozzle, 4. exhaust pipe, 41. exhaust hole, 5. partition plate, 6. vacuum machine, 61. connecting pipe, 7. driving motor, 8. rotating blade, 9. top cover, 91. cover plate, 92. shaft. DETAILED DESCRIPTION

[0026] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-4 The methanol combustion furnace of the present invention comprises a furnace body 1, a fuel tank 2, a combustion nozzle 3, an exhaust pipe 4, a partition plate 5, and a vacuum machine 6. The furnace body 1 is the main shell of the combustion furnace, and its interior is a cavity structure. The cavity of the furnace body 1 is divided into two independent upper and lower layers by a partition plate 13 fixed horizontally inside the cavity. The upper layer is a combustion chamber 18, and the lower layer is a storage chamber 19. Figure 1 As shown, the upper combustion chamber 18 is provided with a sealing door 14 in front of the furnace body 1, which is used to open and close the combustion chamber 18. When the sealing door 14 is closed, the opening of the combustion chamber 18 can be sealed. The lower storage chamber 19 is provided with a closing door 15, which is located below the sealing door 14. The closing door 15 has no sealing requirement and is mainly used to open and close the storage chamber 19.

[0029] The fuel tank 2 is fixedly installed in the combustion chamber and is used to store methanol fuel. A copper tube 21 is connected to one side of the fuel tank 2 for adding methanol fuel to the fuel tank 2. Specifically, the copper tube 21 passes through the side wall of the furnace body 1, and its outer part located at the furnace body 1 is bent vertically upward, and a sealing valve 22 is installed at the outer end of the copper tube 21, which is used to seal the copper tube 21 when no fuel is needed. The design of the copper tube 21 makes it more convenient to add fuel to the fuel tank 2. The combustion nozzle 3 is installed on the fuel tank 2 and connected to the fuel tank 2 for spraying fuel and burning. In this embodiment, three combustion nozzles 3 are arranged side by side on the fuel tank 2, and the three combustion nozzles 3 have the same size. When the combustion nozzle 3 needs to be ignited, the sealing door 14 is opened and the ignition operation is manually operated.

[0030] The top of the furnace body 1 is provided with a through hole 11 that penetrates the internal cavity of the furnace body 1. The exhaust pipe 4 is fixedly inserted into the through hole 11 and connected to the combustion chamber 18. The exhaust pipe 4 is made of stainless steel and is used to conduct the heat in the combustion chamber 18 to the outside and serve as an inlet for air to enter the combustion chamber 18. When the sealing door 14 is closed, only the access port of the exhaust pipe 4, i.e., the through hole 11, in the combustion chamber 18, air enters the combustion chamber 18. In order to ensure the sealed installation between the exhaust pipe 4 and the through hole 11, a sealing plate 12 is fixed on the top of the furnace body 1. The center position of the sealing plate 12 is provided with a through hole matching the diameter of the exhaust pipe 4. The exhaust pipe 4 penetrates the through hole of the sealing plate 12 and is inserted into the through hole 11 of the furnace body 1. The outer wall of the exhaust pipe 4 is sealed and connected to the through hole of the sealing plate 12. The exhaust pipe 4 is a straight pipe structure, the lower end of which is vertically inserted into the through hole 11, and the upper end of which is installed with a top cover 9. The top cover 9 includes a cover plate 91 and a shaft portion 92. The shaft portion 92 is inserted into the exhaust pipe 4, and the lower end surface of the cover plate 91 contacts the top surface of the exhaust pipe 4. The top cover 9 is used to prevent debris from entering the exhaust pipe 4. A plurality of exhaust holes 41 are evenly distributed on the circumferential tube wall of the exhaust pipe 4. The exhaust holes 41 are used to discharge the heat generated by the combustion of methanol in the combustion chamber 18, and to allow air to enter the combustion chamber 18 to provide oxygen for the combustion of methanol. In order to achieve uniform heat dissipation and ensure that sufficient air enters the combustion chamber 18, the exhaust holes 41 can be arranged in multiple circles around the exhaust pipe 4 according to needs. In this embodiment, two rows of exhaust holes 41 are arranged.

[0031] In order to quickly extinguish the fire source, the present invention slides a partition plate 5 on the side wall of the furnace body 1. For details, see Figure 2 , 4, a mounting slot is provided on the side wall on the right side of the furnace body 1, and the partition plate 5 is inserted into the mounting slot and can slide horizontally in the mounting slot. The upper surface of the partition plate 5 contacts the top surface of the inner cavity of the furnace body 1. By pushing the partition plate 5 inward, the through hole 11 can be sealed, and by pulling the partition plate 5 outward, the through hole 11 can be connected with the combustion chamber 18. At the same time, in order to ensure the sealing of the combustion chamber 18 when it is closed, the insertion section of the partition plate 5 matches its mounting slot. The vacuum machine 6 is fixedly installed outside the side wall of the furnace body 1, and the output end of the vacuum machine 6 is fixedly connected with a connecting pipe 61, which passes through the side wall of the furnace body 1 and extends into the combustion chamber 18. When an accident occurs in the combustion furnace and the fire source needs to be extinguished quickly, the partition plate 5 is first pushed inward to block the air from entering the combustion chamber 18, and the vacuum machine 6 is started to evacuate the combustion chamber 18 at the same time. In an oxygen-deficient environment, the fire source at the combustion nozzle 3 is quickly extinguished, thereby improving the safety of use.

[0032] In order to ensure that methanol can be fully and completely burned, avoid the waste of methanol and the generation of polluting emissions caused by incomplete combustion, and improve the thermal conversion efficiency of the methanol combustion furnace, the present invention is provided with a combustion-supporting device in the furnace body 1. Specifically, the present invention is provided with a drive motor 7 in the storage chamber 19, and the drive motor 7 is located at the center position below the partition plate 13 and is fixed in the storage chamber 19 by a fixing rod 16. The middle of the fixing rod 16 is fixedly connected to the drive motor 7, and the two ends of the fixing rod 16 are fixed to the side walls on both sides of the storage chamber 19. The output end of the drive motor 7 passes through the partition plate 13 and extends to the bottom of the combustion chamber 18. The output shaft of the drive motor 7 is provided with a rotating blade 8, and the rotating blade 8 is located at the bottom of the combustion chamber 18. The drive motor 7 is electrically connected to an external power supply to supply power. When the drive motor 7 is started, the drive motor 7 drives the rotating blade 8 to rotate, drives the air in the combustion chamber 18 to flow, accelerates the flowing air to flow upward from the bottom of the combustion chamber 18, flows through the combustion nozzle 3, improves the combustion efficiency of the combustion nozzle 3, and makes the fuel sprayed by the combustion nozzle 3 fully burn.

[0033] In order to ensure the safety of the driving motor 7 and prevent the temperature in the storage chamber 19 from being too high, a heat insulation layer is provided on the partition plate 13 .

[0034] In order to prevent the user from accidentally touching and scalding due to the high surface temperature of the furnace body 1 during heating, the present invention installs five protective plates 17 made of heat insulation cotton on the outer walls of both sides of the furnace body 1. The heat insulation plates 17 cooperate with the side walls of the furnace body 1 to open corresponding holes to ensure the normal installation and use of the partition plate 5, the vacuum machine 6, and the copper tube 21.

[0035] When the methanol combustion furnace of the present invention is used, first check whether each component is installed normally, then fix the methanol combustion furnace in a suitable working area, open the sealing valve 22 to add the methanol solution into the fuel tank 2 through the copper tube 21, and seal the sealing valve 22 after the addition is completed. Then open the sealing door 14 to perform the ignition operation, ignite the combustion nozzle 3, close the sealing door, turn on the driving motor 7, so that it drives the rotating blade 8 to rotate, and the heat enters the exhaust pipe 4 through the through hole 11 at the top of the combustion chamber 18, and then enters the heating space through the exhaust hole 41 of the exhaust pipe 4. When a combustion accident occurs, the partition plate 5 is pushed into the furnace body 1 to block the air from entering the combustion chamber 18 through the through hole 11, and at the same time, the vacuum machine 6 is started to evacuate the combustion chamber 18. In an oxygen-deficient environment, the fire source at the combustion nozzle 3 is quickly extinguished, thereby improving the safety of the combustion furnace.

[0036] The present invention belongs to small and medium-sized heating equipment, which is a distributed heating method. The corresponding size specifications can be designed according to different heating sites and environments. When using this equipment in a relatively small space and a relatively sealed environment, it is recommended to add ventilation equipment to ensure air quality.

[0037] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A methanol combustion furnace, comprising a furnace body (1), a fuel tank (2), a combustion nozzle (3), and an exhaust pipe (4); the internal cavity of the furnace body (1) is fixed with a fuel tank (2) for storing methanol fuel; the combustion nozzle (3) is installed on the fuel tank (2) and connected to the fuel tank (2) for spraying fuel and burning it; the top of the furnace body (1) is provided with a through hole (11) penetrating the internal cavity of the furnace body (1); the exhaust pipe (4) is fixedly inserted in the through hole (11) for conducting heat from the furnace body (1) and serving as an inlet for air to enter the furnace body (1); Features: It also comprises a partition plate (5) and a vacuum machine (6); the partition plate (5) horizontally penetrates the side wall of the furnace body (1) and is slidably connected to the side wall of the furnace body (1); the upper surface of the partition plate (5) contacts the top surface of the inner cavity of the furnace body (1); the partition plate (5) is pushed inward or pulled outward to close or open the through hole (11) located at the top of the furnace body; the vacuum machine (6) is installed outside the side wall of the furnace body (1); the output end of the vacuum machine (6) is fixedly connected to a connecting pipe (61); the connecting pipe (61) penetrates the side wall of the furnace body (1) and extends to the inner cavity of the furnace body (1).

2. A methanol combustion furnace according to claim 1, characterized in that: The exhaust pipe (4) is a straight-through pipe. One end of the exhaust pipe (4) is vertically inserted into a through hole (11) at the top of the furnace body (1) and is fixedly and sealedly connected to the through hole (11). A top cover (9) is installed at the end of the other end of the exhaust pipe (4). The top cover (9) comprises a cover plate (91) and a shaft portion (92). The shaft portion (92) is inserted into the exhaust pipe (4). The lower end surface of the cover plate (91) contacts the top surface of the exhaust pipe (4). A plurality of exhaust holes (41) are evenly distributed on the peripheral tube wall of the exhaust pipe (4). The exhaust holes (41) are used to discharge hot air in the furnace and to allow air to enter.

3. A methanol combustion furnace according to claim 2, characterized in that: A sealing plate (12) is fixed on the top of the furnace body (1), a through hole matching the diameter of the exhaust pipe (4) is provided at the center of the sealing plate (12), the exhaust pipe (4) passes through the through hole of the sealing plate (12), and the outer wall of the exhaust pipe (4) is sealed and connected to the through hole of the sealing plate (12).

4. A methanol combustion furnace according to claim 1, characterized in that: A partition plate (13) is horizontally fixed to the internal cavity of the furnace body (1), and the partition plate (13) separates the internal cavity of the furnace body (1) into two independent upper and lower layers, the upper layer being a combustion chamber (18) and the lower layer being a storage chamber (19); the fuel tank (2) is installed in the combustion chamber (18); the vacuum machine (6) is connected to the combustion chamber (18); the upper layer is provided with a sealing door (14) located on one side of the furnace body, which is used to open and close the combustion chamber (18); the lower layer is provided with a closing door (15) located below the sealing door (14), which is used to open and close the storage chamber (19).

5. A methanol combustion furnace according to claim 4, characterized in that: A driving motor (7) is fixedly mounted at the center position below the partition plate (13); an output end of the driving motor (7) passes through the partition plate (13) and extends to the bottom of the combustion chamber (18); a rotating blade (8) is fixedly mounted on the output shaft of the driving motor (7); and the rotating blade (8) is located at the bottom of the combustion chamber (18).

6. A methanol combustion furnace according to claim 5, characterized in that: A fixing rod (16) is horizontally installed in the storage chamber (19) for fixing the drive motor (7); the middle of the fixing rod (16) is fixedly connected to the drive motor (7), and the two ends of the fixing rod (16) are fixed to the side walls of the storage chamber (19).

7. A methanol combustion furnace according to claim 1, characterized in that: A copper tube (21) is installed through the side wall of the furnace body (1); one end of the copper tube (21) located inside the furnace body (1) is connected to the fuel tank (2), and the other end located outside the furnace body (1) is installed with a sealing valve (22); the copper tube (21) is used to add methanol fuel to the fuel tank (2).

8. A methanol combustion furnace according to claim 1, characterized in that: Three combustion nozzles (3) are arranged side by side on the fuel tank (2), and the three combustion nozzles (3) have the same specifications.

9. A methanol combustion furnace according to claim 1, characterized in that: Protective plates (17) are installed on the outer walls of both sides of the furnace body (1) for heat insulation protection.

10. A methanol combustion furnace according to claim 9, characterized in that: The material of the protective plate (17) is heat insulation cotton.

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