Methanol combustion heat exchange heating device and warmer thereof

Abstract

The utility model discloses a methanol combustion heat exchange heating device and a heater thereof. The methanol combustion heat exchange heating device comprises a first exhaust fan, a second exhaust fan, a methanol combustor and a methanol combustion heat exchanger, a methanol combustion chamber and a combustion heat exchange channel are formed in the lower layer of a body of the methanol combustion heat exchanger, a smoke outlet is formed in the tail end of the combustion heat exchange channel, an oxygen port is formed in the front end of the methanol combustion chamber, and the oxygen port, the methanol combustion chamber, the combustion heat exchange channel and the smoke outlet are sequentially communicated. A first exhaust fan is fixed on the inner wall of the oxygen port; a methanol combustor is fixed at the methanol combustion chamber; an air circulation heat exchange channel is formed in the upper layer of a body of the methanol combustion heat exchanger, a cold air inlet is formed in one end of the air circulation heat exchange channel, and a hot air outlet is formed in the other end. The air circulation heat exchange channel is located over the methanol combustion chamber and the combustion heat exchange channel. And a second exhaust fan is fixed at the cold air inlet. The product is reasonable in structural design, more environment-friendly, capable of reducing pollutant emission and convenient to carry and use outdoors.

Description

Technical Field

[0001] This utility model relates to heaters, and more particularly to a methanol combustion heat exchange heating device and its heater. Background Technology

[0002] 1. Chinese Patent Publication No.: CN 219036785U discloses a methanol heater, including an oil tank (1), a catalytic burner (2), and a starter heater (3); the catalytic burner (2) includes a combustion cylinder (21), a blower (22), and a first peristaltic pump (23); the combustion cylinder (21) is provided with at least one catalyst carrier (24); the combustion cylinder (21) has an air inlet and an air outlet; one end of the catalyst carrier (24) is connected to the air inlet of the combustion cylinder (21); the catalyst carrier (24) is provided with several hollow channels; each of the hollow channels is coated with a methanol combustion catalyst; the air outlet of the blower (22) is connected to the combustion cylinder (23) through an air inlet pipe (221). The air inlet of the cylinder (21) is connected, the oil inlet pipe of the first peristaltic pump (23) is connected to the oil tank (1), the oil outlet pipe of the first peristaltic pump (23) is spirally wound around the outer wall of the catalyst carrier (24), and the end of the oil outlet pipe of the first peristaltic pump (23) is inserted into the air inlet pipe (221); the starting heater (3) includes a second peristaltic pump (31) and an igniter (32), the oil inlet pipe of the second peristaltic pump (31) is connected to the oil tank (1), the end of the oil outlet pipe of the second peristaltic pump (31) is inserted into the inner bottom of the combustion cylinder (21), and the ignition end of the igniter (32) is inserted into the inner bottom of the combustion cylinder (21) and adjacent to the end of the oil outlet pipe of the second peristaltic pump (31). It also includes a rectangular outer shell (4), the catalytic burner (2) is installed in the outer shell (4) in a horizontal direction, a plate (41) is fixed in the outer shell (4) in a horizontal direction, and the plate (41) is located on the upper side of the catalytic burner (2). A warm air passage (42) is formed between the upper surface of the plate (41) and the outer shell (4). Cold air inlets (43) and warm air outlets (44) are respectively provided on both sides of the outer shell (4) and at the two ends of the warm air passage (42). A fan (45) is installed in the warm air passage (42) near the end of the cold air inlet (43). The air outlet of the fan (45) faces the warm air outlet (44). An exhaust pipe (213) is connected to the air outlet of the combustion cylinder (21). The upper end of the exhaust pipe (213) passes through the plate (41) and extends into the warm air passage (42). It also includes a battery (5) and a control circuit board (6). The battery (5) is located at the bottom of the inner shell (4). The control circuit board (6) is embedded in the side wall of the shell (4). The battery (5) is electrically connected to the control circuit board (6). The blower (22), the first peristaltic pump (23), the second peristaltic pump (31), the igniter (32), and the fan (45) are all electrically connected to the control circuit board (6).The combustion cylinder (21) includes an upper cylinder body (214) and a lower cylinder body (215), which are connected by rivets or welding. A cavity is formed inside the upper cylinder body (214) and the lower cylinder body (215), and at least one catalyst carrier (24) is installed horizontally within the cavity. An end plate (216) is also included, fixed inside the upper cylinder body (214). The end plate (216) has a circular opening, and one end of the catalyst carrier (24) away from the air inlet of the combustion cylinder (21) is inserted into the circular opening. A cylindrical flame retardant (7) is inserted into the air inlet pipe (221) near the catalyst carrier (24). The flame retardant (7) is made of ceramic and has several hollow channels. A gap exists between the flame retardant (7) and the catalyst carrier (24). The catalyst support (24) is made of metal.

[0003] The methanol heaters disclosed above are large and heavy, and can only be installed in a fixed location. They are suitable for heating large spaces and large areas, but their structure is complex and their cost is high. They cannot be carried outdoors for sleeping, temporary outdoor exploration work, or to remote cabins without electricity or gas.

[0004] 2. Chinese Patent Publication No. CN218763635U discloses a methanol flameless combustion heater, including a methanol tank (1), a heater (2), and a radiator (3); the heater (2) includes a hot water tank (21), a flameless combustion chamber (22), an exhaust pipe (23), a catalyst carrier (24), and an air inlet (25). The flameless combustion chamber (22) is installed at the bottom of the hot water tank (21), the catalyst carrier (24) is installed in the middle of the flameless combustion chamber (22), and the catalyst carrier (24) is loaded with a methanol heating catalyst. The lower end of the exhaust pipe (23) The exhaust pipe (23) is connected to the top of the flameless combustion chamber (22), and the upper end of the exhaust pipe (23) extends outside the hot water tank (21). One end of the air inlet pipe (25) is connected to the flameless combustion chamber (22), and the other end of the air inlet pipe (25) extends outside the hot water tank (21). The methanol oil tank (1) is connected to the flameless combustion chamber (22) through the oil supply pipe (11), and the oil supply pipe (11) is spirally wrapped around the outer wall of the flameless combustion chamber (22). The inlet end of the radiator (3) is connected to the water tank through the water inlet pipe (31), and the outlet end of the radiator (3) is connected to the water tank through the water outlet pipe (32). The exhaust pipe (23) is composed of multiple U-shaped gas pipes. The catalyst carrier (24) is cylindrical, and several airflow channels are vertically arranged inside the catalyst carrier (24). Each of the several airflow channels is loaded with methanol heating catalyst. A water pump (33) is installed on the water inlet pipe (31). A fan (26) is installed at the air inlet of the air inlet duct (25). The outer wall of the hot water tank (21) is covered with an insulation layer (27).

[0005] The aforementioned methanol flameless combustion heater is also large and heavy, suitable for fixed installation. It heats water first through methanol flameless combustion, and then the high-temperature water exchanges heat with the radiator to generate heat. The radiator then dissipates the heat. However, the extra layer of water heat exchange results in low heat exchange efficiency and poor heat exchange effect. In addition, water has a freezing point of 0°C, so it freezes when not in use at sub-zero temperatures, making it inconvenient to use. Water is also difficult to obtain in many high-altitude and cold regions. The weight of the water further increases the overall weight of the product. Overall, it is not suitable for outdoor use. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a methanol combustion heat exchange heating device and its heater that features a reasonable structural design, is more environmentally friendly, reduces pollutant emissions, and is convenient for outdoor use.

[0007] The solution to the above technical problem is as follows:

[0008] A methanol combustion heat exchange heating device includes a first exhaust fan, a second exhaust fan, a methanol burner, and a methanol combustion heat exchanger made of aluminum or copper. The lower layer of the methanol combustion heat exchanger body contains a methanol combustion chamber and a combustion heat exchange channel. A flue gas outlet is located at the end of the combustion heat exchange channel, and an oxygen inlet is located at the front end of the methanol combustion chamber. The oxygen inlet, methanol combustion chamber, combustion heat exchange channel, and flue gas outlet are sequentially connected. The first exhaust fan is fixed to the inner wall of the oxygen inlet. The methanol burner is fixed to the methanol combustion chamber. An air circulation heat exchange channel is located in the upper layer of the methanol combustion heat exchanger body. One end of the air circulation heat exchange channel has a cold air inlet, and the other end has a hot air outlet. The air circulation heat exchange channel is located directly above the methanol combustion chamber and the combustion heat exchange channel. The second exhaust fan is fixed to the cold air inlet.

[0009] The beneficial effects of this utility model of a methanol combustion heat exchange heating device and its heater are as follows: 1. Based on the principle that hot air / heat rises, it is more reasonable to set the lower layer as a combustion heat exchange channel and the upper layer as an air circulation heat exchange channel, resulting in higher heat utilization. 2. This product has a simple structure, small size, and is relatively light, with low manufacturing cost, thus improving market competitiveness. 3. After methanol combustion, the temperature is high during short-distance flow in the combustion heat exchange channel, and the inner wall of the combustion heat exchange channel absorbs heat quickly and reaches a high temperature, resulting in good short-distance heat exchange effect and high efficiency, and rapid cooling over long distances, reducing heat loss. 4. The main products of methanol combustion are carbon dioxide and water, making it more environmentally friendly and a green energy source, reducing pollution of harmful substances in the air; it is a clean fuel. 5. Methanol has a low freezing point, allowing for combustion heating in cold (snowy) winters and high-altitude areas, making it widely applicable. 6. The heater is equipped with a battery, making it small and lightweight, portable, and easy to carry outdoors, suitable for heating even in situations without electricity or gas. Attached Figure Description

[0010] Figure 1 , Figure 2 This is a perspective view of the casing of the product of this utility model;

[0011] Figure 3 , Figure 4 , Figure 5 This is a perspective view of the heater of this utility model product;

[0012] Figure 6 This is a schematic diagram showing the internal structure of the heater product as seen when one side of the casing is opened;

[0013] Figure 7 , Figure 8 This is a three-dimensional diagram showing the connection relationship between the methanol combustion heat exchange heating device, methanol tank, methanol pipeline, controller, and methanol liquid flow control device of this utility model.

[0014] Figure 9 This is a three-dimensional diagram showing the connection relationship between the methanol combustion heat exchange heating device, methanol pipeline, and methanol liquid flow control device of this utility model.

[0015] Figure 10 , Figure 11 This is a perspective view of the methanol combustion heat exchange heating device of this utility model.

[0016] Figure 12 This is a bottom view of the methanol combustion heat exchange heating device of this utility model.

[0017] Figure 13 yes Figure 12 A cross-sectional view along the AA direction;

[0018] Figure 14 yes Figure 12 A cross-sectional view along the BB direction;

[0019] Figure 15 This is a rear view of the methanol combustion heat exchange heating device of this utility model.

[0020] Figure 16 yes Figure 15 A cross-sectional view along the CC direction;

[0021] Figure 17 yes Figure 15 A cross-sectional view along the DD direction;

[0022] Figure 18 This is a front view of the methanol combustion heat exchange heating device of this utility model.

[0023] Figure 19 yes Figure 18 A cross-sectional view along the EE direction.

[0024] 1. First exhaust fan; 2. Second exhaust fan; 3. Methanol burner; 4. Methanol combustion heat exchanger; 41. Oxygen inlet; 42. Methanol combustion chamber; 43. Combustion heat exchange channel; 43. Lower heat exchange fins; 431. Smoke outlet; 44. Cold air inlet; 4A. Air circulation heat exchange channel; 4B. Upper heat exchange fins; 4B1. Hot air outlet; 4C. Box body; 5. Box cavity; 51. Methanol box; 6. Methanol pipeline; 7. Methanol liquid flow control device; 8. Controller; 9. Main control circuit board; 91. Functional operation circuit control board; 92. Battery; 10. First box opening; 11. Second box opening; 12. Third box opening; 13. Fourth box opening; 14. Ventilation and heat dissipation hole; 15. Hot air temperature detection sensor; 16. Heat exchange temperature detection sensor; 17. Fifth box opening; 18. Handle; 19. Shoulder strap; 20. Casters; 21. Detailed Implementation

[0025] like Figures 1 to 19The device, shown, is a methanol combustion heat exchange heating device, generally square in shape. It is a component of indoor heaters and tent heaters, comprising a first exhaust fan 1, a second exhaust fan 2, and a methanol burner 3. The first and second exhaust fans 1 and 2 are DC powered, typically with a power rating of 15-50 watts, selected according to the overall power of the device. The methanol burner 3 is an existing technology product. The device also includes a methanol combustion heat exchanger 4, which is composed of multiple welded or screwed components connected as a single unit. The methanol combustion heat exchanger 4 is made of aluminum or copper, and has a high heat exchange and dissipation coefficient, resulting in high efficiency. The methanol combustion heat exchanger 4 has a methanol combustion chamber 42 and a combustion heat exchange channel 43 inside its lower body. A flue gas outlet 44 is located at the end of the combustion heat exchange channel 43, and an oxygen inlet 41 is located at the front end of the methanol combustion chamber 42. The oxygen inlet 41 is used to supply oxygen for combustion. The oxygen inlet 41, methanol combustion chamber 42, combustion heat exchange channel 43, and flue gas outlet 44 are connected sequentially. The length of the combustion heat exchange channel 43 is between 30 cm and 60 cm, and the appropriate length is selected according to the overall power of the unit. A first exhaust fan 1 is fixed to the inner wall of the oxygen inlet 41 using screws. A methanol burner 3 is fixed to the methanol combustion chamber 42.

[0026] An air circulation heat exchange channel 4B is provided inside the upper layer of the methanol combustion heat exchanger 4. One end of the air circulation heat exchange channel 4B has a cold air inlet 4A, and the other end has a hot air outlet 4C. Preferably, the air circulation heat exchange channel 4B is straight and unbent, ensuring smooth and fast airflow with minimal wind resistance, resulting in good heat exchange effect and high efficiency. The air circulation heat exchange channel 4B is located directly above the methanol combustion chamber 42 and the combustion heat exchange channel 43, ensuring good heat transfer and high efficiency. A second exhaust fan 2 is fixed to the cold air inlet 4A with screws. The cold air inlet 4A, the air circulation heat exchange channel 4B, and the hot air outlet 4C are connected sequentially. The temperature of the air blown out from the hot air outlet 4C is generally set not to exceed 80℃.

[0027] Based on the principle that hot air / heat rises, it is more reasonable to set up a combustion heat exchange channel 43 in the lower layer and an air circulation heat exchange channel 4B in the upper layer, resulting in higher heat utilization. The wall thickness between the upper and lower layers is less than 5 mm, further improving heat dissipation.

[0028] Preferably, there are two cold air inlets 4A, located on the same side wall, and two corresponding second exhaust fans 2, while there is only one hot air outlet 4C. This can accelerate the airflow and quickly remove heat.

[0029] During operation, external methanol liquid enters the methanol burner 3. The first exhaust fan 1 draws in air, which enters through the oxygen port 41. The air mixes with the methanol liquid mist in the methanol combustion chamber 42 and burns to generate hot air heat. The hot air heat is exchanged through the combustion heat exchange channel 43 and finally discharged from the exhaust port 44. The air mixes with the methanol liquid and is ignited by the ignition needle of the methanol burner 3. The heat of combustion flows through the combustion heat exchange channel 43 through the airflow. The heat is absorbed and transferred through the inner wall to the upper airflow heat exchange channel 4B wall, and can be dissipated through the inner wall of the airflow heat exchange channel 4B. The second exhaust fan 2 operates to draw in cold air, which enters through the cold air inlet 4A and passes through the airflow heat exchange channel 4B. The cold air contacts the channel wall and exchanges heat, carrying away the heat. The resulting hot air is blown out from the hot air outlet 4C, thus providing heating heat.

[0030] After methanol combustion, the temperature is high during the short-distance flow in the combustion heat exchange channel 43. The inner wall of the combustion heat exchange channel 43 absorbs heat quickly and reaches a high temperature, resulting in good heat exchange effect and high efficiency over short distances. Over long distances, the temperature drops quickly, reducing heat loss. By adjusting the power of the first exhaust fan 1 to control the flow rate, the inner wall of the combustion heat exchange channel 43 is made to absorb as much heat as possible to improve the heat exchange effect and reduce heat loss. The airflow reaches the exhaust port 44 at a very low temperature, generally slightly higher than the outside temperature. The exhaust temperature is adjusted by adjusting the power of the first exhaust fan 1. The exhaust gas temperature is adjusted by adjusting the power of the second exhaust fan 2 to control the flow rate.

[0031] The main products of methanol combustion are carbon dioxide and water, making it a more environmentally friendly and green energy source that reduces pollution of harmful substances in the air; it is a clean fuel. In other words, during combustion, methanol reacts with oxygen to produce carbon dioxide and water, and releases a large amount of heat energy.

[0032] Methanol liquid typically has a freezing point above -50°C, making it suitable for heating in cold (snowy) winters and high-altitude regions, thus having a wide range of applications. Methanol is also inexpensive and economical.

[0033] Preferably, the inner top wall of the combustion heat exchange channel 43 extends downward with a plurality of lower heat exchange fins 431 to increase the heat absorption area and improve the heat exchange effect and efficiency; the lower heat exchange fins 431 extend along the length of the combustion heat exchange channel 43 and follow the airflow to prevent air blockage.

[0034] Preferably, the combustion heat exchange channel 43 is U-shaped and curved to form a longer channel, thereby improving the heat exchange effect and efficiency, and making better use of heat.

[0035] Preferably, the bottom wall of the air circulation heat exchange channel 4B extends and protrudes with several upper heat exchange fins 4B1, which increases the heat dissipation area and improves the heat exchange effect and efficiency; the upper heat exchange fins 4B1 extend along the length of the air circulation heat exchange channel 4B, and the airflow is smooth, preventing airflow blockage.

[0036] A heater includes the above-described methanol combustion heat exchange heating device structure.

[0037] A heater includes a housing 5, a methanol tank 6, a methanol pipeline 7, a methanol liquid flow control device 8, a controller 9, a battery 10, a first tank opening 11, a second tank opening 12, a third tank opening 13, and a fourth tank opening 14. The interior of the housing 5 is a cavity 51. The lower wall of the housing 5 has the first tank opening 11, the second tank opening 12, the third tank opening 13, and the fourth tank opening 14 communicating with the cavity 51. The lower wall of the housing 5 also has ventilation and heat dissipation holes 15 for dissipating heat from the methanol combustion heat exchange heating device to the outside, preventing the temperature inside the cavity 51 from becoming too high. The housing 5 is made of plastic, square in shape, and includes a front shell and a rear shell, which are fixed together by screws. The methanol tank 6 is made of plastic or metal and contains methanol liquid, with a capacity generally between 5 liters and 15 liters, which allows the methanol combustion heat exchange heating device to burn for 5 to 15 hours. The empty weight of the heater is between 15 kg and 20 kg, excluding the methanol liquid.

[0038] The methanol combustion heat exchange heating device includes a first exhaust fan 1, a second exhaust fan 2, a methanol burner 3, and a methanol combustion heat exchanger 4, which is made of aluminum or copper. The lower part of the methanol combustion heat exchanger 4 has a methanol combustion chamber 42 and a combustion heat exchange channel 43. A flue gas outlet 44 is located at the end of the combustion heat exchange channel 43, and an oxygen inlet 41 is located at the front end of the methanol combustion chamber 42. The oxygen inlet 41, methanol combustion chamber 42, combustion heat exchange channel 43, and flue gas outlet 44 are sequentially connected. The first exhaust fan 1 is fixed to the inner wall of the oxygen inlet 41. The methanol burner 3 is fixed to the methanol combustion chamber 42. An air circulation heat exchange channel 4B is located inside the upper part of the methanol combustion heat exchanger 4. One end of the air circulation heat exchange channel 4B has a cold air inlet 4A, and the other end has a hot air outlet 4C. The air circulation heat exchange channel 4B is located directly above the methanol combustion chamber 42 and the combustion heat exchange channel 43. The second exhaust fan 2 is fixed to the cold air inlet 4A. The inner top wall of the combustion heat exchange channel 43 has several lower heat exchange fins 431 protruding outwards, which extend along the length of the combustion heat exchange channel 43. The combustion heat exchange channel 43 is U-shaped and curved. The bottom wall of the air circulation heat exchange channel 4B has several upper heat exchange fins 4B1 protruding outwards, which extend along the length of the air circulation heat exchange channel 4B.

[0039] The methanol combustion heat exchanger 4 is fixed to the bottom of the chamber 51 by screw assembly. The oxygen connector at the oxygen port 41 is just right to pass through the first chamber hole 11 to take in external air; the exhaust connector at the exhaust port 44 is just right to pass through the second chamber hole 12 to exhaust smoke to the outside; the cold air inlet 4A is aligned with the third chamber hole 13 for ventilation intake; and the hot air connector at the hot air outlet 4C is just right to pass through the fourth chamber hole 14.

[0040] The upper part of the chamber 51 is fixed with a methanol tank 6 by a screw assembly. The methanol tank 6 is connected to one end of the methanol pipeline 7 and connected in series. The other end of the methanol pipeline 7 is connected to the methanol burner 3. The methanol pipeline 7 is connected in series with a methanol liquid flow control device 8.

[0041] A controller 9 is fixed inside the chamber 51 or on the wall of the methanol tank 6. The controller 9 is connected to the methanol liquid flow control device 8, the battery 10, the first exhaust fan 1, the second exhaust fan 2, and the ignition needle of the methanol burner 3 via wires.

[0042] Battery 10 is a rechargeable battery, selected from 30A to 60A; battery 10 supplies power to controller 9. During operation, by operating controller 9, methanol liquid flow control device 8 draws methanol liquid through methanol pipeline 7 into methanol burner 3. Controller 9 controls the first exhaust fan 1 and the second exhaust fan 2 to draw air. Controller 9 controls the ignition needle of methanol burner 3 to ignite, and the methanol liquid mist sprayed from methanol burner 3 comes into contact with the flame and ignites and burns. Air enters from oxygen port 41, passes through methanol combustion chamber 42 and mixes with methanol liquid mist to generate hot air heat, which passes through combustion heat exchange channel 4. 3. Heat exchange occurs, and the smoke is finally discharged from the exhaust port 44. The heat from combustion flows through the combustion heat exchange channel 43 via airflow, and is absorbed and transferred to the upper air circulation heat exchange channel 4B wall through the inner wall. Heat can be dissipated through the inner wall of the air circulation heat exchange channel 4B within the channel. The second exhaust fan 2 operates to draw air, and cold air enters from the cold air inlet 4A, passes through the air circulation heat exchange channel 4B, and exchanges heat with the channel wall, or the heat emitted from the inner wall of the air circulation heat exchange channel 4B heats or exchanges heat with the air, and then carries away the heat. The hot air obtained after heat exchange is blown out from the hot air outlet 4C, thereby obtaining the heat for heating.

[0043] A hot air temperature sensor 16 is fixedly installed through the wall at the hot air outlet 4C to detect the outlet temperature of the hot air and determine the output temperature, which is then displayed on the digital display of the controller 9. A heat exchange temperature sensor 17 is fixed at the front of the combustion heat exchange channel 43 to detect the combustion heating temperature and prevent overheating. The controller 9 sets a maximum temperature value, and the system automatically cuts off power and stops combustion heating if the temperature exceeds the limit, thus stopping the methanol flow control device 8 from pumping, ensuring safe operation. The hot air temperature sensor 16 and the heat exchange temperature sensor 17 are connected to the controller 9 via wires.

[0044] The top wall of the housing 5 has a fifth opening 18. The methanol filling connector of the methanol tank 6 extends out through the fifth opening 18. An openable cap is connected to the methanol filling connector for adding methanol. During use, the cap is loosened to allow air into the tank, enabling the methanol flow control device 8 to properly draw in methanol. Preferably, a one-way valve can be installed on the cap to allow the methanol flow control device 8 to draw in the required air when drawing in methanol.

[0045] The top of the methanol tank 6 is fixedly connected to a handle 19 with a screw assembly, making it convenient for outdoor use;

[0046] The side wall of the methanol tank 6 is fixedly connected to a carrying strap 20 by means of lugs, screws or buckles, making it convenient for people to carry while walking and for outdoor use.

[0047] The bottom of the methanol tank 6 is connected to several balancing casters 21 for easy movement.

[0048] Example 1: This product is suitable for outdoor camping (sleeping outdoors). When using it, open and set up the tent, place this product on the ground inside the tent, connect the oxygen connector at oxygen port 41 to the extension hose, and run it out of the tent from the ground to connect to the outside air / oxygen; connect the smoke connector at smoke vent 44 to another extension hose, and run it out of the tent from the ground to connect to the outside smoke; while obtaining sufficient oxygen, smoke is also vented to the outside, without affecting the heating inside the tent; cold air inlet 4A and hot air outlet 4C are both arranged inside the tent, and cold air inlet 4A becomes a hot air circulation inlet, forming a circulating heating system inside the tent.

[0049] Example 2: This product is also suitable for use indoors in cabins, in relatively enclosed cabins outdoors without electric or gas heating. When in use, connect an extension hose to the oxygen connector at oxygen inlet 41, and pass it through a window gap, door gap, or wall hole to connect to the outside of the tent to obtain air / oxygen. Connect another extension hose to the smoke exhaust connector at smoke exhaust outlet 44, and pass it through a window gap, door gap, or wall hole to connect to the outside of the tent to exhaust smoke. While obtaining sufficient oxygen, smoke is also exhausted to the outside, without affecting the heating inside the tent. The cold air inlet 4A and the hot air outlet 4C are both located inside the cabin. The cold air inlet 4A becomes a hot air circulation inlet, forming a circulating heating system inside the cabin.

[0050] Preferably, the methanol flow control device 8 is a methanol pump used to draw methanol and control the flow of methanol. The controller 9 includes a main control circuit board 91 and a function operation circuit control board 92. The main control circuit board 91 is fixed inside the chamber 51, and the function operation circuit control board 92 is fixed to the top wall of the methanol tank 6 by screws. The main control circuit board 91 is connected to the function operation circuit control board 92, the methanol pump, the battery 10, the first exhaust fan 1, the second exhaust fan 2, and the ignition needle of the methanol burner 3 via wires. Function control is achieved by pressing the function buttons on the function operation circuit control board 92 externally, and the main control circuit board 91 executes the function operation signals. The function operation circuit control board 92 is a resistive touch button controller or an LCD touch button controller.

Claims

1. A methanol combustion heat exchange heating device, comprising a first exhaust fan, a second exhaust fan, and a methanol burner, characterized in that: It also includes a methanol combustion heat exchanger, which is made of aluminum or copper; the lower layer of the methanol combustion heat exchanger body has a methanol combustion chamber and a combustion heat exchange channel, the end of the combustion heat exchange channel has a flue gas outlet, and the front end of the methanol combustion chamber has an oxygen inlet, and the oxygen inlet, methanol combustion chamber, combustion heat exchange channel and flue gas outlet are connected in sequence; a first exhaust fan is fixed on the inner wall of the oxygen inlet; a methanol burner is fixed at the methanol combustion chamber; An air circulation heat exchange channel is provided inside the upper layer of the methanol combustion heat exchanger body. One end of the air circulation heat exchange channel has a cold air inlet and the other end has a hot air outlet. The air circulation heat exchange channel is located directly above the methanol combustion chamber and the combustion heat exchange channel. A second exhaust fan is fixed at the cold air inlet.

2. The methanol combustion heat exchange heating device according to claim 1, characterized in that: The inner top wall of the combustion heat exchange channel has several lower heat exchange fins that extend outwards, and these lower heat exchange fins extend along the length of the combustion heat exchange channel.

3. The methanol combustion heat exchange heating device according to claim 1, characterized in that: The combustion heat exchange channel is arranged in a U-shape.

4. The methanol combustion heat exchange heating device according to claim 1, characterized in that: The bottom wall of the air circulation heat exchange channel extends and protrudes with several upper heat exchange fins, which extend along the length of the air circulation heat exchange channel.

5. A heater, characterized in that: The invention includes a methanol combustion heat exchange heating device as described in any one of claims 1 to 4.

6. A heater according to claim 5, characterized in that: The heater includes a housing, a methanol tank, methanol pipelines, a methanol flow control device, a controller, a battery, a first tank opening, a second tank opening, a third tank opening, and a fourth tank opening; the interior of the housing is a cavity; the lower section of the housing wall has the first tank opening, the second tank opening, the third tank opening, and the fourth tank opening communicating with the cavity, characterized in that: The methanol combustion heat exchanger is fixed at the bottom of the chamber. The oxygen connector at the oxygen port protrudes out through the first chamber hole, the exhaust connector at the exhaust port protrudes out through the second chamber hole, the cold air inlet is aligned with the third chamber hole, and the hot air connector at the hot air outlet protrudes out through the fourth chamber hole. A methanol tank is fixed in the upper part of the chamber. One end of the methanol tank is connected to a methanol pipeline and the other end of the methanol pipeline is connected to a methanol burner. A methanol liquid flow control device is connected in series with the methanol pipeline. A controller is fixed inside the chamber or on the wall of the methanol tank. The controller is connected to the methanol liquid flow control device, the battery, the first exhaust fan, the second exhaust fan, and the ignition needle of the methanol burner via wires.

7. A heater according to claim 6, characterized in that: A hot air temperature sensor is fixed to the wall at the hot air outlet; a heat exchange temperature sensor is fixed to the front section of the combustion heat exchange channel; the hot air temperature sensor and the heat exchange temperature sensor are respectively connected to the controller via wires.

8. A heater according to claim 6, characterized in that: The top wall of the tank has a fifth opening, through which the methanol filling connector of the methanol tank protrudes.

9. A heater according to claim 6, characterized in that: The top of the methanol tank is fixedly connected to a handle or the side wall of the methanol tank is fixedly connected to a shoulder strap.

10. A heater according to claim 6, characterized in that: The methanol liquid flow control device is a methanol pump; the controller includes a main control circuit board and a functional operation circuit control board. The main control circuit board is fixed inside the chamber, and the functional operation circuit control board is fixed on the top wall of the methanol tank. The main control circuit board is connected to the functional operation circuit control board, the methanol pump, the battery, the first exhaust fan, the second exhaust fan, and the ignition needle of the methanol burner through wires.

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