Multifunctional heating furnace

Abstract

The utility model provides a multifunctional heating furnace, and belongs to the technical field of heating equipment, the multifunctional heating furnace comprises a shell, a combustion mechanism, an oil pump, an oil filter and an oil tank are arranged in the shell, the combustion mechanism is provided with a combustion chamber and a smoke exhaust channel, and the oil tank, the oil filter, the oil pump and the combustion chamber are communicated in sequence; the top of the shell is inwards concaved to be provided with a heating cavity parallel to the combustion mechanism, a passage of the smoke exhaust channel passes through the outer side of the heating cavity, and a pot is arranged from an opening in the top of the heating cavity. According to the heating stove, the heating function is achieved through the combustion mechanism, the cooking function can be achieved through the cookware arranged in the heating cavity, the energy utilization rate is increased, it is guaranteed that the cookware cannot topple over, and food is prevented from being spilled out. Due to the fact that the cookware is completely placed in the shell during cooking, the cookware is heated more sufficiently, and the heat energy utilization rate of the heating furnace is higher. And meanwhile, a semiconductor thermoelectric power generation piece is integrated in the combustion mechanism, the electric quantity of the battery is supplemented through heat generated by combustion, and the heat is fully utilized.

Description

Technical Field

[0001] This application belongs to the technical field of heating equipment, and more specifically, relates to a multifunctional heating stove. Background Technology

[0002] A heating stove is a heating device used in industrial settings and mobile equipment. It generates heat by burning fuel and has become an important means of heating in many commercial spaces, trucks, and RVs during winter. However, heating solely by burning fuel wastes a lot of energy, has limited functionality, and cannot meet cooking needs.

[0003] Based on the above problems, Chinese utility model patent with publication number CN211781237U discloses a new type of heating stove for high-altitude areas. It sets up an oven in the heating stove and passes the flue of the combustion furnace through the oven. The oven is heated by the heat of the flue gas, so as to realize the function of cooking in the heating stove.

[0004] However, the disclosed patent solution has certain shortcomings. First, it can only perform the "baking" function and cannot perform functions such as steaming, boiling, or braising. Second, the side walls of the oven are in direct contact with the high-temperature fumes, and actual measurements show that its internal temperature exceeds 200 degrees Celsius, making it difficult to put or take out food directly inside, resulting in inconvenient operation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application provides a multi-functional heater that can perform various functions such as baking, steaming, or braising using a pot. After cooking, the food can be taken out of the pot without having to put hands into the high-temperature heating chamber, making it easy to operate.

[0006] To achieve the above objectives, the technical solution of this application provides a multifunctional heating stove, including a shell, a combustion mechanism, an oil pump, an oil filter, and an oil tank. The combustion mechanism has a combustion chamber and a flue gas passage. One end of the flue gas passage is connected to the combustion chamber, and the other end of the flue gas passage extends to the outside of the shell. The oil tank, oil filter, oil pump, and combustion chamber are connected in sequence. The shell has heat dissipation holes that are opposite to the combustion mechanism. A heating chamber is arranged parallel to the combustion mechanism at the top of the shell. The passage of the flue gas passage passes through the outside of the heating chamber, and a pot is inserted through the top opening of the heating chamber.

[0007] The heater generates heat by burning fuel oil, which is then radiated to the outside of the casing to provide warmth. The cookware can be used for various functions such as grilling or braising, and with the addition of a steamer basket, it can also steam, making it more versatile than just grilling. After cooking, the food can be easily removed from the cookware without having to put hands into the hot heating chamber, making it convenient to use. Because the cookware is placed in the recessed heating chamber, it will not tip over, preventing food spillage. As an outdoor device, it can be easily carried by placing the cookware directly into the heating chamber without taking up extra space. Since the cookware is completely inside the casing during cooking, it receives more heat, resulting in higher energy efficiency for the heater.

[0008] Optionally, the shell contains a spiral tube that surrounds the outside of the heating chamber, with its bottom end connected to the combustion chamber. The top end of the spiral tube extends to the outside of the shell, and its interior serves as a flue gas exhaust channel. The high-temperature flue gas generated by the combustion mechanism passes through the spiral tube to heat the cookware inside the heating chamber. The spiral tube increases the residence time and heat exchange area of ​​the flue gas, thereby improving heat utilization.

[0009] Optionally, the system also includes an exhaust pipe. The bottom wall of the heating chamber has a bottom cavity, and the side wall of the heating chamber has a side cavity. The combustion chamber, the bottom cavity, the side cavity, and the exhaust pipe are sequentially connected. The end of the exhaust pipe furthest from the side cavity extends to the outside of the casing. The bottom cavity, the side cavity, and the exhaust pipe serve as exhaust channels. The high-temperature flue gas generated by the combustion mechanism passes through the bottom cavity and the side cavity and is then discharged through the exhaust pipe, thus heating the cookware inside the heating chamber.

[0010] Optionally, several smoke baffles are staggered and distributed in the bottom wall cavity and the side wall cavity. The bottom wall cavity and the side wall cavity form a serpentine smoke passage through the smoke baffles. The smoke baffles increase the length of the flue gas flow path, increase the residence time of the flue gas in the bottom wall cavity and the side wall cavity, and improve the heat utilization rate.

[0011] Optionally, the cookware also includes a gas plug and a connecting rope. A lid is fitted onto the top of the cookware, which has a handle. The lid has a vent, and the gas plug is connected to the top of the lid via the connecting rope. The gas plug is removable and seals the vent. When baking, the gas plug is placed over the vent; when steaming or boiling, the gas plug is removed, allowing the cookware's interior to connect with the outside through the vent, achieving pressure balance. The connecting rope prevents the gas plug from being lost. The handle facilitates easy removal of the entire cookware from the heating chamber.

[0012] Optionally, the top of the fuel tank has a filler port and an oil-gas balance valve, which is used to balance the air pressure in the fuel tank during filling and dispensing.

[0013] Optionally, it also includes a control device. A battery is housed within the casing, and the combustion mechanism has an ignition plug. The oil pump, ignition plug, and battery are all electrically connected to the control device. The control device has a combustion control switch, a power switch, a charging port, and a display panel located on the outside of the casing. A cooking heat-conducting plate is located on the top of the casing, directly above the combustion mechanism. The power switch controls the entire heater's operation, the combustion control switch controls the combustion mechanism's operation, the charging port charges the battery, and the battery can also be used to charge electronic devices in reverse when outdoors. The power display panel displays information such as the remaining battery power. The cooking heat-conducting plate adds a cooking position; the heat generated by the combustion mechanism heats the plate, allowing a conventional cooking pot to be placed on it for cooking.

[0014] Optionally, the combustion mechanism includes a heat dissipation assembly and a combustion assembly. The combustion assembly includes a burner tube, a flare plate, and a combustion-supporting fan. The top of the burner tube is open, and cooking heat-conducting plates are spaced apart directly above the burner tube. The flare plate is arranged around the bottom outer side of the burner tube. The heat dissipation assembly is fixedly sleeved on the outside of the burner tube, and the top edge of the flare plate abuts against the bottom edge of the heat dissipation assembly. The burner tube, the heat dissipation assembly, and the flare plate form a flare chamber. The interior of the burner tube and the flare chamber serve as the combustion chamber. The exhaust channel is connected to the interior of the flare plate. The bottom of the burner tube has an ignition chamber. The ignition chamber is provided with an oil guide port connected to an oil pump. The ignition plug is located in the ignition chamber, and the air outlet of the combustion-supporting fan is connected to the ignition chamber.

[0015] The combustion fan blows air into the burner tube to enhance combustion. After the flame rises along the burner tube, it heats the cooking heat-conducting plate. When the high-temperature flue gas encounters the cooking heat-conducting plate, it turns downward and passes through the return fire chamber and is discharged from the exhaust channel. In this way, the high-temperature flue gas can be absorbed and utilized by the heat dissipation components after being heated by the cooking heat-conducting plate.

[0016] Optionally, the bottom of the combustion tube is covered with an air guide box, and the bottom end of the combustion tube has an air inlet. Several spiral blades are distributed around the air inlet, and the air outlet of the combustion fan is connected to the interior of the air guide box. The air blown in by the combustion fan forms a spiral airflow inside the combustion tube through the spiral blades, which improves the combustion efficiency.

[0017] Optionally, the heat dissipation assembly includes a heat sink fixedly sleeved on the outside of the burning tube, the top edge of the reflux plate abutting against the bottom edge of the heat sink, a number of heat-conducting fins distributed around the inner side of the heat sink, a number of heat dissipation fins distributed around the outer side of the heat sink, and a cooking heat-conducting plate abutting directly above the heat sink; the outer wall of the heat sink is also provided with a concave platform and a thermocouple, the concave platform having two contact ends. The heat dissipation assembly also includes a heat dissipation fan, heat sink fins, a thermoelectric generator, and an auxiliary heat-conducting plate. The heat sink fins are bonded to the cold end of the thermoelectric generator, the heat dissipation fan is bonded to the side of the heat sink away from the thermoelectric generator, the auxiliary heat-conducting plate is bonded to the hot end of the thermoelectric generator, the side wall of the auxiliary heat-conducting plate away from the thermoelectric generator is bonded to the two contact ends, the detection end of the thermocouple extends into the interior of the burning tube, the thermoelectric generator is electrically connected to the battery, and the thermocouple is electrically connected to the control device.

[0018] High-temperature flue gas comes into contact with the heat-conducting fins in the flashover chamber, transferring heat to the heat sink. The heat is then dissipated through the heat sink fins and into the environment via heat dissipation holes, providing heating. Thermocouples are used to measure the flame temperature and control the fuel injection quantity of the oil pump via a control device, thus controlling the flame intensity. A concave platform and auxiliary heat-conducting plate transfer heat from the heat sink to the thermoelectric generator. The area of ​​the two contact ends on the concave platform determines the amount of heat transfer and also the hot-end temperature of the thermoelectric generator, preventing damage from overheating. The cold end of the thermoelectric generator is kept at a low temperature by a cooling fan and heat sink, thus maintaining a continuous temperature difference between the hot and cold ends to generate electricity, supplementing the battery's power and further utilizing the heat.

[0019] The advantages of the technical solution in this application compared to the prior art are as follows:

[0020] The heater provides heating through a combustion mechanism. Cookware placed inside the heating chamber can also be used for cooking, utilizing the heat from the combustion mechanism to improve energy efficiency. Because the cookware is placed in the recessed heating chamber, it won't tip over, preventing food spillage. As an outdoor device, it's easy to carry; the cookware can be placed directly inside the heating chamber without taking up extra space. Since the cookware is completely inside the casing during cooking, it receives more heat, resulting in higher thermal energy utilization. Furthermore, a thermoelectric generator is integrated into the heat dissipation components, which can replenish the battery using the heat generated by combustion, ensuring full utilization of heat. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a multi-functional heating stove;

[0023] Figure 2 This is a schematic diagram of the internal structure of a multi-functional heating stove.

[0024] Figure 3 This is a schematic diagram of the internal structure of a multi-functional heating stove.

[0025] Figure 4 for Figure 1 Enlarged view of a portion of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the combustion mechanism.

[0027] Figure 6 This is a schematic diagram of the combustion assembly structure;

[0028] Figure 7 This is a schematic diagram of the bottom structure of the combustion assembly;

[0029] Figure 8 This is a schematic diagram of the heat dissipation component structure;

[0030] Figure 9 This is a schematic diagram of the interior of a multifunctional heating furnace with a second type of heating chamber sidewall structure;

[0031] Figure 10 This is a schematic diagram of the second type of heating chamber structure;

[0032] Figure 11 This is a schematic diagram of the internal structure of the side wall of the second type of heating chamber;

[0033] Figure 12 This is a schematic diagram of the interior of a multifunctional heating furnace with a third type of heating chamber sidewall structure;

[0034] Figure 13 This is a schematic diagram of the internal structure of the side wall of the third type of heating chamber.

[0035] Icons: 1. Shell; 101. Heat dissipation hole; 102. Heating chamber; 103. Cooking heat conduction plate; 2. Combustion mechanism; 201. Spiral tube; 202. Exhaust pipe; 203. Bottom wall cavity; 204. Side wall cavity; 205. Smoke baffle; 206. Ignition plug; 207. Burning tube; 208. Refrigerant plate; 209. Combustion fan; 210. Refrigerant chamber; 211. Ignition chamber; 212. Oil guide port; 213. Air guide box; 214. Air inlet; 215. Spiral blades; 216. Heat sink; 217. Heat conduction fins; 218. Heat dissipation fins; 219. Concave platform 220. Thermocouple; 221. Contact terminal; 222. Cooling fan; 223. Heat sink; 224. Semiconductor thermoelectric generator; 225. Auxiliary heat conduction plate; 226. Corrugated pipe; 3. Oil pump; 4. Oil filter; 5. Oil tank; 501. Filler port; 502. Oil-gas balance valve; 6. Cookware; 601. Gas plug; 602. Connecting rope; 603. Lid; 604. Handle; 605. Gas vent; 701. Battery; 702. Combustion control switch; 703. Power switch; 704. Charging port; 705. Display panel; 706. Circuit board; 707. Voltage control box. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0037] Example 1:

[0038] This embodiment provides a multifunctional heating stove, based on Figure 1 , Figure 2 and Figure 3 As shown, the device includes a housing 1, within which a combustion mechanism 2, an oil pump 3, an oil filter 4, and an oil tank 5 are housed. The combustion mechanism 2 has a combustion chamber and an exhaust duct. One end of the exhaust duct is connected to the combustion chamber, and the other end extends to the outside of the housing 1. The oil tank 5, oil filter 4, oil pump 3, and combustion chamber are sequentially connected. The oil tank 5 can contain diesel or gasoline as fuel. The fuel in the oil tank 5 is filtered by the oil filter 4 under the drive of the oil pump 3, and then injected into the combustion chamber for combustion. The flue gas generated by combustion is discharged through the exhaust duct. The housing 1 has heat dissipation holes 101 opposite to the combustion mechanism 2. The heat generated by combustion is dissipated into the environment through the heat dissipation holes 101, achieving a heating function.

[0039] A heating chamber 102, parallel to the combustion mechanism 2, is located inwards from the top of the housing 1. The exhaust duct passes through the outside of the heating chamber 102, and a pot 6 is inserted through the top opening of the heating chamber 102. The high-temperature flue gas generated by fuel combustion heats the pot 6 inside the heating chamber 102 as it flows along the exhaust duct, thus adding a cooking function to the original heating function. The pot 6 can perform multiple functions such as grilling or braising, and with the addition of a steamer basket, it can also steam, expanding its practicality beyond just grilling. After cooking, the food can be easily removed from the pot 6 without needing to put hands into the high-temperature heating chamber 102, making operation convenient. Because the pot 6 is placed in the recessed heating chamber 102, it will not tip over, preventing food spillage. Furthermore, as an outdoor device, the pot 6 can be placed directly into the heating chamber 102 for easy carrying without taking up extra space. Since the cookware 6 is completely placed inside the heating chamber 102 during cooking, the cookware 6 is heated more fully, and the heat energy utilization rate of the heater is also higher.

[0040] In this embodiment, based on Figure 3 As shown, a spiral tube 201 surrounds the heating chamber 102 inside the housing 1, with its bottom end connected to the combustion chamber. The top end of the spiral tube 201 extends to the outside of the housing 1, and its interior serves as a flue gas exhaust channel. Thus, the high-temperature flue gas generated by the combustion mechanism 2 passes through the spiral tube 201 to heat the cookware 6 inside the heating chamber 102. The end of the spiral tube 201 can be connected to the combustion chamber via a corrugated pipe 226. The structure of the spiral tube 201 increases the residence time and heat exchange area of ​​the flue gas, improving heat utilization. When diesel fuel is used and combustion is complete, the temperature inside the heating chamber 102 can reach over 200 degrees Celsius, fully meeting normal cooking requirements.

[0041] Furthermore, based on Figure 4 As shown, the cookware 6 also includes a gas plug 601 and a connecting rope 602. A lid 603 is attached to the top of the cookware 6, and a handle 604 is located on the top of the cookware 6. The lid 603 has a vent 605. The gas plug 601 is connected to the top of the lid 603 via the connecting rope 602, and the gas plug 601 can be detachably sealed to the vent 605. When baking, the gas plug 601 can be sealed at the vent 605 to seal the interior of the cookware 6. When steaming or boiling, the gas plug 601 can be removed, allowing the interior of the cookware 6 to communicate with the outside through the vent 605, achieving pressure balance. The connecting rope 602 prevents the gas plug 601 from being lost. The handle 604 facilitates the user in removing the entire cookware 6 from the heating chamber 102.

[0042] Meanwhile, the lid 603 can be hinged to the top of the cookware 6 to prevent loss. The handle 604 can be hinged to the edge of the cookware 6. When not in use, the handle 604 can be rotated and folded down to reduce space occupation and facilitate carrying. In actual use, the edge of the cookware 6 can be overlapped with the edge of the top opening of the heating chamber 102. Alternatively, the cookware 6 can be designed to match the shape and size of the interior of the heating chamber 102, so that the cookware 6 fits snugly inside the heating chamber 102 without wobbling. This ensures the stability of the cookware 6 during cooking and prevents damage from bumps and knocks during transport.

[0043] Furthermore, based on Figure 3 As shown, the top of the oil tank 5 has a filler port 501 and an oil-gas balance valve 502. The oil-gas balance valve 502 is used to balance the air pressure of the oil tank 5 when filling and dispensing oil.

[0044] Furthermore, based on Figure 1 and Figure 3 As shown, the device also includes a control unit. A battery 701 is housed within the housing 1. The combustion mechanism 2 has an ignition plug 206. The oil pump 3, ignition plug 206, and battery 701 are all electrically connected to the control unit. The control unit has a combustion control switch 702, a power switch 703, a charging port 704, and a display panel 705 located on the outside of the housing 1. The control unit includes a circuit board 706 with control circuitry and a voltage control box 707. The specific circuitry and connection control methods are existing technologies and will not be described in detail. The power switch 703 controls the opening and closing of the entire heater. The combustion control switch 702 controls the ignition plug 206 to discharge and achieve ignition. The charging port 704 is used to charge the battery 701. Outdoors, the battery 701 can also be used to charge electronic devices in reverse. The power display panel 705 displays information such as the remaining power of the battery 701.

[0045] A cooking heat-conducting plate 103 is located on the top of the housing 1, directly above the combustion mechanism 2. The cooking heat-conducting plate 103 is made of aerospace-grade aluminum that can withstand temperatures up to 2000 degrees Celsius, ensuring both rapid heat conduction and the material's ability to withstand intense flame exposure. The cooking heat-conducting plate 103 adds a cooking position; the heat generated by the combustion mechanism 2 heats the cooking heat-conducting plate 103, allowing the placement of conventional cooking pots or kettles for cooking and boiling water, further utilizing the heat radiated from the top of the combustion mechanism 2.

[0046] Furthermore, based on Figure 5 , Figure 6 and Figure 7As shown, the combustion mechanism 2 includes a heat dissipation assembly and a combustion assembly. The combustion assembly includes a combustion tube 207, a return flame plate 208, and a combustion-supporting fan 209. The top of the combustion tube 207 is open, and cooking heat-conducting plates 103 are spaced apart directly above the combustion tube 207. The return flame plate 208 is arranged around the bottom outer side of the combustion tube 207. The heat dissipation assembly is fixedly sleeved on the outside of the combustion tube 207, and the top edge of the return flame plate 208 abuts against the bottom edge of the heat dissipation assembly. The combustion tube 207, the heat dissipation assembly, and the return flame plate 208 form a return flame chamber 210, and the interior of the combustion tube 207 and the return flame chamber 210 serve as the combustion chamber. The exhaust duct communicates with the interior of the return flame plate 208. The bottom of the combustion tube 207 has an ignition chamber 211, and the ignition chamber 211 is provided with an oil guide port 212 that is connected to the oil pump 3. The ignition plug 206 is located in the ignition chamber 211, and the air outlet of the combustion fan 209 is connected to the ignition chamber 211.

[0047] In operation, the oil pump 3 injects fuel into the ignition chamber 211 through the oil inlet 212, and ignites the fuel through the ignition plug 206. The combustion fan 209 blows air into the combustion tube 207 to ensure combustion. The flame and high-temperature flue gas generated by combustion extend upward along the combustion tube 207 and contact the bottom of the cooking heat-conducting plate 103, heating the cooking heat-conducting plate 103. After encountering the cooking heat-conducting plate 103, the high-temperature flue gas turns downward and enters the return fire chamber 210, where the heat is absorbed by the heat dissipation components and then dissipated into the environment. The high-temperature flue gas then continues to descend to the return fire plate 208 and enters the exhaust duct.

[0048] Preferably, the bottom of the combustion tube 207 is covered with an air guide box 213, and the bottom end of the combustion tube 207 has an air inlet 214. Several spiral blades 215 are distributed around the air inlet 214, and the air outlet of the combustion fan 209 is connected to the interior of the air guide box 213. The air blown in by the combustion fan 209 forms a spiral upward airflow inside the combustion tube 207 through the spiral blades 215, which improves the combustion efficiency.

[0049] Furthermore, based on Figure 5 and Figure 8 As shown, the heat dissipation assembly includes a heat sink 216 fixedly sleeved on the outside of the combustion tube 207. The top edge of the return flame plate 208 abuts against the bottom edge of the heat sink 216. Several heat-conducting fins 217 are distributed around the inner side of the heat sink 216, and several heat dissipation fins 218 are distributed around the outer side of the heat sink 216. In this way, the high-temperature flue gas in the return flame chamber 210 is absorbed by the heat sink 216 through the heat-conducting fins 217. The heat absorbed by the heat sink 216 is dissipated through the heat dissipation fins 218 and then dissipated into the environment through the heat dissipation holes 101, thus achieving the heating function. The cooking heat-conducting plate 103 abuts directly above the heat sink 216. The cooking heat-conducting plate 103, the heat sink 216, the combustion tube 207, and the return flame plate 208 seal the passage of the flame and high-temperature flue gas, preventing the flame and high-temperature flue gas from overflowing from the combustion mechanism 2.

[0050] The outer wall of the heat sink 216 is also provided with a concave platform 219 and a thermocouple 220. The thermocouple 220 is used to measure the flame temperature and control the amount of oil injected by the oil pump 3 through the control device to control the firepower. The concave platform 219 has two contact ends 221. The heat dissipation assembly also includes a heat dissipation fan 222, a heat sink 223, a thermoelectric generator 224, and an auxiliary heat-conducting plate 225. The heat sink 223 is attached to the cold end of the thermoelectric generator 224. The heat dissipation fan 222 is attached to the side of the heat sink 223 away from the thermoelectric generator 224. The auxiliary heat-conducting plate 225 is attached to the hot end of the thermoelectric generator 224. The sidewall of the auxiliary heat-conducting plate 225 away from the thermoelectric generator 224 is attached to the two contact ends 221. The detection end of the thermocouple 220 extends into the interior of the burning tube 207. The thermoelectric generator 224 is electrically connected to the battery 701. The thermocouple 220 is electrically connected to the control device. The concave platform 219 and auxiliary heat-conducting plate 225 transfer heat from the heat sink 216 to the thermoelectric generator 224. The area of ​​the two contact ends 221 on the concave platform 219 determines the amount of heat conduction and also the hot end temperature of the thermoelectric generator 224, preventing the thermoelectric generator 224 from overheating and being damaged. The cold end of the thermoelectric generator 224 is kept at a low temperature by the cooling fan 222 and the heat sink 223. In this way, the hot and cold ends of the thermoelectric generator 224 maintain a continuous temperature difference to generate electricity, supplementing the power of the battery 701 and further utilizing the heat.

[0051] In this embodiment, the combustion mechanism 2 and the heating chamber 102 are arranged side by side. The main body of the fuel tank 5 is located at the bottom of the heating chamber 102, and the battery 701, control device, fuel pump 3, and fuel filter 4 are all located at the bottom of the combustion mechanism 2. Since the heated ambient air naturally rises, the above structure, while ensuring a compact structure, also minimizes the contact between the fuel tank 5, battery 701, and control device and the high-temperature air, ensuring safety.

[0052] Example 2:

[0053] This embodiment provides a multifunctional heating stove, which differs from Embodiment 1 in that the arrangement of the smoke exhaust channel on the side wall of the heating chamber 102 is different.

[0054] based on Figure 9 , Figure 10 and Figure 11As shown, the multifunctional heater in this embodiment also includes a flue pipe 202. A bottom wall cavity 203 is provided inside the bottom wall of the heating chamber 102, and a side wall cavity 204 is provided inside the side wall of the heating chamber 102. The combustion chamber, bottom wall cavity 203, side wall cavity 204, and flue pipe 202 are sequentially connected. The end of the flue pipe 202 away from the side wall cavity 204 extends to the outside of the housing 1. The bottom wall cavity 203, side wall cavity 204, and flue pipe 202 serve as flue gas exhaust channels. At this time, the high-temperature flue gas generated by the combustion mechanism 2 passes through the bottom wall cavity 203 and side wall cavity 204 and is discharged through the flue pipe 202, thus heating the pot 6 inside the heating chamber 102.

[0055] In this embodiment, the heating chamber 102 has a cuboid or cube structure with four side walls and a bottom wall. The bottom wall cavity 203 is located on the bottom wall of the heating chamber 102, and the side wall cavities 204 are located on three of the side walls of the heating chamber 102. The fourth side wall of the heating chamber 102 is hollowed out and faces the combustion mechanism 2. In this way, the heat from the combustion mechanism 2 can directly heat the heating chamber 102 through the hollowed-out side wall, resulting in a higher temperature. The high-temperature flue gas heats the heating chamber 102 through the bottom wall cavity 203 and the side wall cavity 204. At this time, the pot 6 can be placed on the top circular opening of the heating chamber 102 by its outwardly protruding top edge, or the pot 6 can be set into a cuboid or cube structure that matches the heating chamber 102, or a support can be set in the heating chamber 102 to prevent the pot 6 from shaking. Of course, in other embodiments, the four side walls of the heating chamber 102 may also be provided with side wall cavities 204.

[0056] Preferably, a number of smoke baffles 205 are staggered and distributed in the bottom wall cavity 203 and the side wall cavity 204. The bottom wall cavity 203 and the side wall cavity 204 form a serpentine smoke passage through the smoke baffles 205. The smoke baffles 205 increase the length of the flue gas flow path, increase the residence time of the flue gas in the bottom wall cavity 203 and the side wall cavity 204, and improve the heat utilization rate.

[0057] As an alternative approach in this embodiment, based on Figure 12 and Figure 13 As shown, the heating chamber 102 is a cylindrical chamber. The bottom wall cavity 203 is located on the bottom wall of the heating chamber 102, and the side wall cavity 204 is located on the cylindrical surface of the heating chamber 102. The high-temperature flue gas heats the heating chamber 102 through the bottom wall cavity 203 and the side wall cavity 204.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multifunctional heating stove, characterized in that: The device includes a housing, within which a combustion mechanism, an oil pump, an oil filter, and an oil tank are disposed. The combustion mechanism has a combustion chamber and an exhaust channel. One end of the exhaust channel is connected to the combustion chamber, and the other end of the exhaust channel extends to the outside of the housing. The oil tank, the oil filter, the oil pump, and the combustion chamber are sequentially connected. The housing has heat dissipation holes disposed opposite to the combustion mechanism. The top of the housing is provided with a heating chamber arranged in parallel with the combustion mechanism. The passage of the exhaust channel passes through the outside of the heating chamber, and a pot is inserted through the top opening of the heating chamber.

2. The multifunctional heating stove as described in claim 1, characterized in that: The housing has a spiral tube that surrounds the outside of the heating chamber. The bottom end of the spiral tube is connected to the combustion chamber, and the top end of the spiral tube extends to the outside of the housing. The inside of the spiral tube serves as the exhaust channel.

3. The multifunctional heating stove as described in claim 1, characterized in that: It also includes a smoke exhaust pipe. The bottom wall of the heating chamber has a bottom wall cavity, and the side wall of the heating chamber has a side wall cavity. The combustion chamber, the bottom wall cavity, the side wall cavity, and the smoke exhaust pipe are connected in sequence. The end of the smoke exhaust pipe away from the side wall cavity extends to the outside of the housing. The bottom wall cavity, the side wall cavity, and the smoke exhaust pipe serve as the smoke exhaust channel.

4. The multifunctional heating stove as described in claim 3, characterized in that: Several smoke-blocking plates are staggered and distributed within the bottom wall cavity and the side wall cavity, forming a serpentine smoke passage through the bottom wall cavity and the side wall cavity.

5. The multifunctional heating stove as described in claim 1, characterized in that: It also includes an air plug and a connecting rope. The top of the pot is fitted with a lid, and the top of the pot has a handle. The lid has an air vent. The air plug is connected to the top of the lid via the connecting rope, and the air plug can be detachably sealed to the air vent.

6. The multifunctional heating stove as described in claim 1, characterized in that: The top of the fuel tank has a filler port and an oil-gas balance valve.

7. The multifunctional heating stove as described in any one of claims 1-6, characterized in that: It also includes a control device, a battery is installed inside the housing, the combustion mechanism has an ignition plug, the oil pump, the ignition plug and the battery are all electrically connected to the control device, the control device has a combustion control switch, a power switch, a charging port and a display panel located on the outside of the housing, and a cooking heat conduction plate located directly above the combustion mechanism is provided on the top of the housing.

8. The multifunctional heating stove as described in claim 7, characterized in that: The combustion mechanism includes a heat dissipation assembly and a combustion assembly. The combustion assembly includes a combustion tube, a return flame plate, and a combustion-supporting fan. The top of the combustion tube is open. The cooking heat-conducting plates are spaced apart and positioned directly above the combustion tube. The return flame plate is arranged around the bottom outer side of the combustion tube. The heat dissipation assembly is fixedly sleeved on the outside of the combustion tube, and the top edge of the return flame plate abuts against the bottom edge of the heat dissipation assembly. The combustion tube, the heat dissipation assembly, and the return flame plate form a return flame chamber. The interior of the combustion tube and the return flame chamber serve as the combustion chamber. The smoke exhaust channel communicates with the interior of the return flame plate. The bottom of the combustion tube has an ignition chamber, the ignition chamber is provided with an oil guide port that communicates with the oil pump, the ignition plug is located in the ignition chamber, and the air outlet of the combustion fan is communicated with the ignition chamber.

9. The multifunctional heating stove as described in claim 8, characterized in that: The bottom of the combustion tube is covered with an air guide box, and the bottom end of the combustion tube has an air inlet. Several spiral blades are distributed around the air inlet, and the air outlet of the combustion fan is connected to the interior of the air guide box.

10. The multifunctional heating stove as described in claim 8, characterized in that: The heat dissipation assembly includes a heat dissipation body fixedly sleeved on the outside of the burning tube, the top edge of the reflux plate abutting against the bottom edge of the heat dissipation body, a number of heat-conducting fins distributed around the inner side of the heat dissipation body, a number of heat dissipation fins distributed around the outer side of the heat dissipation body, and the cooking heat-conducting plate abutting against the top of the heat dissipation body. The outer wall of the heat sink is also provided with a concave platform and a thermocouple. The concave platform has two contact ends. The heat dissipation assembly also includes a heat dissipation fan, a heat sink, a thermoelectric generator, and an auxiliary heat-conducting plate. The heat sink is attached to the cold end of the thermoelectric generator. The heat dissipation fan is attached to the side of the heat sink away from the thermoelectric generator. The auxiliary heat-conducting plate is attached to the hot end of the thermoelectric generator. The side wall of the auxiliary heat-conducting plate away from the thermoelectric generator is attached to the two contact ends. The detection end of the thermocouple extends into the interior of the burning tube. The thermoelectric generator is electrically connected to the battery. The thermocouple is electrically connected to the control device.

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