Combustion system and boiler

Abstract

The application relates to the technical field of cooking utensils, in particular to a combustion system and a cooking utensil. The combustion system comprises a combustion pipe, a smoke exhaust pipe, a mixer and a fuel spray head; the mixer is arranged outside the combustion pipe, the mixer is provided with a first air inlet and a fuel outlet, the fuel outlet is communicated with the combustion pipe; the fuel spray head is arranged on the mixer and used for spraying fuel into the mixer, and the fuel and air enter the combustion pipe from the mixer; the smoke exhaust pipe is communicated with the combustion pipe; and the combustion pipe is arranged in a container to heat the substances in the container. The cooking utensil comprises a pot body, a filter basket arranged in the pot body and the combustion system; the combustion pipe is located in the pot body and between the pot body and the filter basket; and the end of the combustion pipe penetrates through the pot body and extends to the outside of the pot body. The combustion efficiency and the heat energy utilization rate are improved by optimizing the structural layout of the mixer and the combustion pipe, and the application is suitable for various cooking equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to a combustion system and a cooking utensil. BACKGROUND

[0002] At present, most common cooking utensils adopt the way of direct heating by fire, that is, the bottom of the pot is directly heated by the flame to achieve the purpose of cooking. This method is widely used in household kitchens and catering industry, and is popular due to its simple operation and low cost. However, under the requirements of modern high efficiency and energy saving, the traditional direct heating by fire has gradually shown its limitations. With the rise of energy prices and the enhancement of environmental awareness, improving energy utilization efficiency has become a problem to be solved.

[0003] In order to improve energy utilization rate, various methods are usually adopted to optimize the combustion process. For example, heat conducting components such as fire guide groove or protruding structure can be arranged on the bottom of the pot to increase the contact area between the pot body and the flame, so as to more effectively absorb heat. Another common method is to improve the design of the burner to produce more uniform and efficient flame, reducing heat loss. In addition, the size of the air door can be adjusted to control the oxygen supply, so that the fuel can burn more fully, further improving the energy conversion rate.

[0004] Although the above measures can improve the energy utilization rate to some extent, there are still obvious deficiencies in actual application. In particular, for the traditional direct heating by fire, the flame can only heat the bottom of the pot body, the heating area is limited, and a large amount of heat cannot be effectively transferred to the food, but is lost due to heat exchange of air. This phenomenon not only wastes valuable energy resources, but also causes the temperature of the environment around the pot to rise rapidly, affecting the user's experience. Therefore, how to significantly improve the energy utilization efficiency on the basis of maintaining the convenience of existing equipment is a technical problem to be solved at present. SUMMARY

[0005] The present application provides a combustion system and a cooking utensil with high combustion efficiency and energy utilization rate.

[0006] In a first aspect, the present application provides a combustion system, which adopts the following technical scheme:

[0007] A combustion system, comprising a combustion pipe, a smoke exhaust pipe, a mixer and a fuel spray head;

[0008] The mixer is arranged outside the combustion pipe, the mixer has a first air inlet and a fuel outlet, and the fuel outlet is in communication with the combustion pipe;

[0009] The fuel spray head is arranged on the mixer and is used for spraying fuel into the mixer, and the fuel and air enter the combustion pipe from the mixer;

[0010] The smoke exhaust pipe is in communication with the combustion pipe;

[0011] The combustion pipe is arranged inside the container to heat the substance inside the container.

[0012] By adopting the above technical scheme, on the one hand, the fuel and air are fully mixed in the mixer, and after ignition, they are sprayed into the combustion pipe, thereby improving the combustion efficiency of the fuel in the combustion pipe. The combustion pipe is arranged inside the container and immersed in water, oil or other substances, and directly heats the water, oil or other substances in the container by heat exchange, which effectively reduces heat loss and improves energy utilization compared with the heating mode of heating the bottom of the pot. The design of the smoke exhaust pipe enables the exhaust gas after combustion to be smoothly discharged, ensuring stable operation of the system.

[0013] Preferably, the mixer comprises a pipe body, one end of the pipe body is provided as a fuel outlet and is fixedly connected and communicated with the combustion pipe, the fuel spray head is arranged at the other end of the pipe body and is arranged inside the mixer, and the fuel spray head is arranged towards the fuel outlet; the first air inlet is arranged on the side wall of the pipe body.

[0014] By adopting the above technical scheme, the fuel spray head is arranged at the other end of the pipe body and is arranged towards the fuel outlet, so that when the fuel is sprayed, a low pressure area is formed at the first air inlet due to the high flow rate, air is sucked into the mixer from the first air inlet, and the air and the fuel are mixed, thereby improving the thermal efficiency and stability of the combustion system.

[0015] Preferably, the one end of the pipe body, on which the fuel spray head is arranged, is provided with an auxiliary air hole, and the auxiliary air hole is arranged in spaced apart relationship with the first air inlet.

[0016] By adopting the above technical scheme, the arrangement of the auxiliary air hole can improve the air intake amount. Specifically, after the spray head sprays the fuel in the mixer, the mixture of the fuel and the air enters the combustion pipe from the mixer, the flow rate of the airflow in the mixer is high, and the air pressure is low, so that the air can enter the mixer from the first air inlet and the auxiliary air hole. By arranging the auxiliary air hole in spaced apart relationship with the first air inlet, the airflow in the auxiliary air hole can be prevented from affecting the airflow in the first air inlet, thereby ensuring full mixing of the fuel and the airflow.

[0017] Preferably, the fuel spray head comprises a spray pipe and a spray nozzle, the spray nozzle is located at one end of the spray pipe and is directed towards the other end of the spray pipe, the spray pipe is arranged towards the inside of the mixer, the second air inlet is arranged on the side wall of the spray pipe, and the second air inlet is arranged towards the auxiliary air hole.

[0018] By adopting the technical scheme, after the fuel is sprayed out of the nozzle, air enters the second air inlet through the auxiliary air hole and is preliminarily mixed with air in the spray pipe. Then, the fuel is secondarily mixed with air in the mixer, so that the oxygen content is effectively improved, and the fuel can be fully combusted in the combustion pipe.

[0019] Preferably, the combustion pipe is provided as a straight pipe or a bent pipe; the mixer is arranged at one end of the combustion pipe, and the smoke exhaust pipe is arranged at the other end of the combustion pipe.

[0020] By adopting the technical scheme, the combustion pipe can be provided as a plurality of different straight pipes or bent pipes, which can adapt to different shapes of pots. In addition, the combustion pipe is provided as a straight pipe, which can improve the flow efficiency of the gas in the combustion pipe; and the combustion pipe is provided as a bent pipe, which can improve the surface area of the combustion pipe, increase the combustion space and the heat exchange area, and further improve the energy utilization rate.

[0021] Preferably, one end of the combustion pipe away from the mixer is closed;

[0022] The smoke exhaust pipe is arranged in parallel with the combustion pipe, the smoke exhaust pipe is connected and communicated with the combustion pipe through the connecting pipe, and the middle position of the smoke exhaust pipe is located inside the container, and the end thereof extends to the outside of the container and serves as a smoke exhaust port.

[0023] By adopting the technical scheme, after the fuel is fully combusted in the combustion pipe, the generated exhaust gas enters the smoke exhaust pipe through the connecting pipe, and since the exhaust gas still has high heat, the smoke exhaust pipe can also heat the substances in the container, so that the exhaust gas energy is fully utilized.

[0024] Preferably, the connecting pipe is arranged in relative inclination with the combustion pipe and the smoke exhaust pipe, and one end of the connecting pipe connected with the combustion pipe is arranged away from the smoke exhaust port, and one end of the connecting pipe connected with the smoke exhaust pipe is arranged close to the smoke exhaust port.

[0025] By adopting the technical scheme, through the connecting pipe arranged in inclination, the connecting pipe can guide the exhaust gas, so as to optimize the airflow path between the combustion pipe and the smoke exhaust pipe, so that the exhaust gas can flow into the smoke exhaust pipe from the combustion pipe in time and be discharged from the smoke exhaust port, and the flow resistance of the exhaust gas is reduced.

[0026] Preferably, the smoke exhaust pipe further has an air inlet, and the air inlet and the smoke exhaust port are respectively located at two ends of the smoke exhaust pipe.

[0027] By adopting the technical scheme, the waste gas is discharged from the smoke outlet under the guidance of the connecting pipe, and the gas flow rate in the smoke pipe is fast, the inside of the smoke pipe is an open environment, the temperature is high, and thus the air pressure in the inside of the smoke pipe is low, and the outside air of the smoke pipe can enter from the air inlet, which can improve the oxygen content in the inside of the smoke pipe and the combustion pipe, improve the combustion sufficiency, and improve the gas flow efficiency in the smoke pipe.

[0028] Preferably, the combustion pipe is provided with a plurality of combustion chambers, and the plurality of combustion chambers are uniformly distributed along the length direction of the combustion pipe; the inner diameter of the combustion chamber is larger than the inner diameter of the combustion pipe, and the plurality of smoke pipes correspond to the plurality of combustion chambers one by one, and the smoke pipe is connected with the combustion chamber.

[0029] By adopting the technical scheme, the fuel enters the combustion chambers in the combustion pipe in sequence, on the one hand, by increasing the inner diameter of the combustion chamber, the combustion chamber has a large combustion space inside, the residence time of the fuel is improved, and thus the sufficiency of fuel combustion is improved, and the fuel is not easy to be incompletely combusted and discharged through the smoke pipe; on the other hand, the combustion chamber has a large surface area, and the heat exchange efficiency is improved. In addition, the connection of the connecting pipe and the combustion chamber can improve the smoke exhaust efficiency, and after the oxygen-containing air enters the inside of the smoke pipe, the incompletely combusted fuel can continue to be combusted, and thus the utilization efficiency of the fuel is improved.

[0030] On the other hand, the application provides a pot, which adopts the following technical scheme:

[0031] A pot comprises a pot body, a filter basket arranged in the pot body, and a combustion system;

[0032] The combustion pipe is located in the inside of the pot body and between the pot body and the filter basket; the end of the combustion pipe penetrates through the pot body and extends to the outside of the pot body, and the connection between the combustion pipe and the pot body is sealed; and the mixer is located outside the pot body.

[0033] By adopting the above technical scheme, the combustion system of the pot can efficiently heat the substances in the pot body. Specifically, the combustion pipe is arranged in the inside of the pot body, so that the heat can be directly transmitted to the substances to be heated, reducing the loss of heat energy. The design of the mixer ensures that the fuel and air are fully mixed before entering the combustion pipe, improving the combustion efficiency and reducing the emission of incompletely combusted fuel.

[0034] In summary, the application has the following at least one beneficial technical effect:

[0035] 1. The fuel and air are fully premixed in the mixer before entering the combustion pipe, improving the combustion efficiency of the fuel, and the combustion system can efficiently heat the substances in the pot body directly, reducing the loss of heat and improving the energy utilization rate;

[0036] 2. The mixer and the fuel injection head can make the fuel and air fully mixed, so as to improve the combustion efficiency and further enhance the combustion effect;

[0037] 3. The exhaust pipe and the combustion pipe are arranged in parallel, so that the heat in the exhaust pipe can be utilized, thereby effectively improving the energy utilization rate;

[0038] 4. The air inlet on the exhaust pipe can improve the oxygen content in the exhaust pipe and the combustion pipe, improve the combustion completeness, and also improve the gas flow efficiency in the exhaust pipe and assist the exhaust. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is the overall structure schematic diagram of the combustion system in the embodiment one of the present application;

[0040] Figure 2 is the internal structure of the mixer in the embodiment one of the present application;

[0041] Figure 3 is the overall structure schematic diagram of the combustion system in the embodiment one of the present application; Figure 2 is the local enlarged schematic diagram of A part in the embodiment one of the present application

[0042] Figure 4 is the structure schematic diagram of the pot in the embodiment one of the present application;

[0043] Figure 5 is the structure schematic diagram of the pot after the pot cover is opened in the embodiment one of the present application;

[0044] Figure 6 is the connection relationship schematic diagram of the combustion system, the pot body and the filter basket in the embodiment one of the present application;

[0045] Figure 7 is the exploded structure schematic diagram of the pot body and the filter basket in the embodiment one of the present application;

[0046] Figure 8 is the overall structure schematic diagram of the combustion system in the embodiment two of the present application.

[0047] Figure 9 is the overall structure schematic diagram of the combustion system in the embodiment three of the present application

[0048] Figure 10 is the overall structure schematic diagram of the combustion system in the embodiment four of the present application.

[0049] Marked in the drawing: 1, combustion pipe; 11, combustion chamber; 2, exhaust pipe; 21, connecting pipe; 22, exhaust port; 23, air inlet; 3, mixer; 31, pipe body; 32, first air inlet; 33, auxiliary air hole; 4, fuel nozzle; 41, nozzle; 42, nozzle; 43, second air inlet; 5, pot body; 6, water filter basket; 7, support frame; 71, support leg; 72, pulley; 73, pot cover; 8, fuel support. DETAILED DESCRIPTION

[0050] The following will be described in detail in combination with the accompanying drawings Figures 1-10 The application is further described in detail.

[0051] The inventor of the present application found that the existing pot mostly adopts the way of open fire heating, which is simple to operate and low in cost, but has the problems of large heat loss and low energy utilization rate. Therefore, the present application mainly adopts a combustion system, which comprises a combustion pipe 1, an exhaust pipe 2, a mixer 3 and a fuel nozzle 4. The fuel and air are fully premixed in the mixer 3 and then ignited in the combustion pipe 1 to directly heat the substances inside the container, thereby reducing heat loss and greatly improving energy utilization rate.

[0052] Example one

[0053] The combustion system provided by the embodiments of the present application, with reference to Figure 1 and Figure 2 , specifically comprises a combustion pipe 1, an exhaust pipe 2, a mixer 3 and a fuel nozzle 4, wherein the mixer 3 is connected with the combustion pipe 1 and sends the mixed fuel and air into the combustion pipe 1, the exhaust pipe 2 is communicated with the combustion pipe 1 for discharging exhaust gas, and the combustion pipe 1 is arranged inside the container to heat the substances in the container, thereby achieving the effect of improving energy utilization rate.

[0054] Specifically, the mixer 3 comprises a pipe body 31, one end of the pipe body 31 is arranged as a fuel outlet and is fixedly connected with and communicated with the combustion pipe 1, and the other end is arranged with the fuel nozzle 4. The fuel nozzle 4 is arranged towards the fuel outlet, and the first air inlet 32 is formed in the side wall of the pipe body 31. When the fuel is sprayed, a low pressure area is formed at the first air inlet 32 due to the high flow rate, air is sucked into the mixer 3 from the first air inlet 32, and the air is mixed with the fuel, thereby improving the thermal efficiency and stability of the combustion system.

[0055] The pipe body 31 can be made of high-temperature-resistant stainless steel material, which has good strength and corrosion resistance, and can be connected with the combustion pipe 1 by welding or screw connection.

[0056] In addition, the pipe body 31 is provided with auxiliary air holes 33, which are arranged at intervals with the first air inlet 32. For example, the number of auxiliary air holes 33 can be set to multiple according to actual needs, and distributed around the pipe body 31, so as to provide more fresh air to participate in the combustion process. Such design helps to increase the oxygen supply, ensure sufficient combustion of fuel, and thus improve the overall combustion efficiency.

[0057] With reference to Figure 2 and Figure 3 Further, the fuel injection head 4 is composed of a spray pipe 41 and a nozzle 42, the nozzle 42 is located at one end of the spray pipe 41 and faces the other end of the spray pipe 41, and the nozzle 42 can be connected with an external fuel bottle to spray fuel into the mixer 3. The spray pipe 41 is arranged towards the inside of the mixer 3, and the second air inlet 43 is arranged on the side wall of the spray pipe 41 and faces the auxiliary air hole 33. The spray pipe 41 can be made of stainless steel, which has good wear resistance and heat conductivity; the nozzle 42 can be made of brass, which has excellent high-temperature resistance and oxidation resistance. When the nozzle 42 sprays fuel, a negative pressure area is formed in the spray pipe 41, which promotes air to enter the second air inlet 43 through the auxiliary air hole 33, and then mixes with air from the first air inlet 32 in the spray pipe 41, and finally the mixed gas enters the combustion pipe 1 through the fuel outlet.

[0058] Further, the combustion pipe 1 can be arranged in a straight pipe or a bent pipe form. If a straight pipe structure is selected, it is beneficial to simplify the processing technology and reduce the production cost; while using a bent pipe design, not only the combustion space can be increased, but also the heat exchange area can be expanded, thereby further optimizing the energy conversion effect. For example, the curved part can be in the form of a circular arc or other suitable shape, which can be flexibly adjusted according to the specifications of the target pot.

[0059] The smoke exhaust pipe 2 is arranged at the end of the combustion pipe 1 away from the mixer 3, and is fixedly connected with the combustion pipe 1 by welding or screwing or other fixing methods. The exhaust gas generated by the combustion of fuel in the combustion pipe 1 is discharged through the smoke exhaust pipe 2.

[0060] Optionally, in order to further optimize the combustion effect, a vortex generator is added inside the mixer 3 to form a rotational flow of fuel and air before entering the combustion pipe 1, thereby improving the uniformity of mixing. The vortex generator can be a group of spiral blades or a plate structure with inclined holes, and the specific form can be selected according to actual needs. In addition, a filter screen is added to the air inlet 23 of the smoke exhaust pipe 2 to prevent foreign matter from entering the combustion system and prolong the service life.

[0061] With reference to Figure 4 and Figure 5The pot further comprises a support frame 7, a pot body 5, a filter basket 6 arranged in the pot body 5, and the above-mentioned combustion system. Specifically, the pot body 5 is fixed on the top of the support frame 7, and the top of the pot body 5 is further provided with a pot cover 73 which can be opened by rotation. The filter basket 6 is arranged in the pot body 5, and the pot body 5 is used for containing water, oil and other substances, and the filter basket 6 is used for containing food materials, so as to realize the cooking of the food materials.

[0062] With reference to Figure 6 and Figure 7 , the middle part of the combustion pipe 1 is arranged in the pot body 5 and between the pot body 5 and the filter basket 6. Both ends of the combustion pipe 1 pass through the pot body 5, and the connection between the combustion pipe 1 and the pot body 5 is sealed to prevent water leakage. The mixer 3 and the exhaust pipe are arranged outside the pot body 5 to ensure normal fuel supply and smoke exhaust.

[0063] Further, the support frame 7 is provided with a foldable fuel support 8 for fixing a liquefied gas tank or a gas tank. In addition, in the present application, the combustion pipe 3 can be arranged in single or multiple and parallel on the pot to realize different heating power and meet different heating requirements.

[0064] The bottom of the support frame 7 is provided with a support leg 71 and a pulley 72 to provide stable support and can be placed stably in the field environment and has mobility.

[0065] The implementation principle of the present embodiment is that the combustion system is integrated in the pot, which not only simplifies the structure of the equipment, but also improves the convenience of use. The portable design enables users to use it easily outdoors, and it is particularly suitable for camping, traveling and other occasions. The present embodiment retains the characteristics of high efficiency and energy saving while taking into account the user experience.

[0066] Embodiment two

[0067] The present embodiment discloses a combustion system, which is different from the first embodiment in that the structure of the combustion system is different. Specifically, with reference to Figure 8 , the smoke exhaust pipe 2 is arranged in parallel with the combustion pipe 1, and a connecting pipe 21 is arranged between the smoke exhaust pipe 2 and the combustion pipe 1, and both ends of the connecting pipe 21 are fixedly connected with the smoke exhaust pipe 2 and the combustion pipe 1 to realize the communication between the combustion pipe 1 and the smoke exhaust pipe 2. The connecting pipe 21 is provided with multiple and is uniformly distributed along the length direction of the combustion pipe 1.

[0068] The combustion tube 1 is provided with a mixer 3 at one end outside the container, and the other end is closed and located inside the container. The exhaust pipe 2 is located in the middle of the container and extends to the outside of the container as an exhaust port 22. Therefore, after the fuel is fully burned in the combustion tube 1, the generated exhaust gas enters the exhaust pipe 2 through the connecting pipe 21, and because the exhaust gas still has high heat, the exhaust pipe 2 can also heat the substances in the container, thereby fully utilizing the energy of the exhaust gas.

[0069] The connecting pipe 21 is relatively inclined to the combustion tube 1 and the exhaust pipe 2. The end of the connecting pipe 21 connected to the combustion tube 1 is away from the exhaust port 22, and the end of the connecting pipe 21 connected to the exhaust pipe 2 is close to the exhaust port 22. The connecting pipe 21 can guide the exhaust gas, thereby optimizing the airflow path between the combustion tube 1 and the exhaust pipe 2, so that the exhaust gas can flow into the exhaust pipe 2 from the combustion tube 1 in time and be discharged from the exhaust port 22, thereby reducing the flow resistance of the exhaust gas.

[0070] The number of exhaust pipes 2 can be single or multiple, and the exhaust pipe 2 can be arranged on the upper side, lower side or horizontal side of the combustion tube 1.

[0071] Further, because the combustion tube 1 has a certain length, the oxygen provided by the mixer 3 alone cannot meet the needs of full combustion of the fuel. Therefore, the exhaust pipe 2 is also provided with an air inlet 23, which is arranged at the other end from the exhaust port 22. The exhaust gas is discharged from the exhaust port 22 under the guidance of the connecting pipe 21. The gas flow rate in the exhaust pipe 2 is relatively fast, and the inside of the exhaust pipe 2 is an open environment with a high temperature, so the air pressure inside the exhaust pipe 2 is also relatively low. The air outside the exhaust pipe 2 can enter the air inlet 23, which can increase the oxygen content in the exhaust pipe 2 and the combustion tube 1, improve the full combustion, and also improve the gas flow efficiency in the exhaust pipe 2 and assist in exhaust.

[0072] In addition, a blowing device such as a blower can be additionally arranged at the air inlet 23. The air inlet 23 is connected to the blowing device, so that the blowing device can actively blow air into the exhaust pipe 2, thereby improving the air flow efficiency in the exhaust pipe 2 and ensuring the full combustion of the fuel. However, it needs to be considered that the blowing speed and blowing amount of the blower should not be too large, otherwise the heat in the exhaust pipe 2 will be quickly discharged through the exhaust port 22, affecting the heat efficiency.

[0073] The present application fully utilizes the energy of the exhaust gas through the structural design of the exhaust pipe 2 and the combustion tube 1, thereby improving the heat efficiency.

[0074] Embodiment three

[0075] The embodiment of the present application discloses a combustion system, which is different from the embodiment two in that a plurality of combustion chambers 11 are arranged on the combustion tube.

[0076] Specifically, referring to Figure 9 , a plurality of combustion chambers 11 are uniformly distributed along the length direction of the combustion pipe 1; the inner diameter of the combustion chamber 11 is larger than the inner diameter of the combustion pipe 1, and a plurality of smoke exhaust pipes 2 correspond to the plurality of combustion chambers 11 one by one, and the smoke exhaust pipe 2 is connected with the combustion chamber 11. The fuel enters each combustion chamber 11 in turn through the combustion pipe 1. On the one hand, by increasing the inner diameter of the combustion chamber 11, the combustion chamber 11 has a larger combustion space inside, which prolongs the residence time of the fuel, thereby improving the completeness of fuel combustion, and the fuel is not easy to be incompletely combusted and discharged through the smoke exhaust pipe 2. On the other hand, the combustion chamber 11 has a larger surface area, which can improve the heat exchange efficiency. In addition, by connecting the connecting pipe 21 with the combustion chamber 11, the smoke exhaust efficiency can be improved, and after the oxygen-containing air enters the inside of the smoke exhaust pipe 2, part of the fuel which is not completely combusted can continue to burn, thereby improving the utilization efficiency of the fuel.

[0077] In the embodiments of the present application, the combustion chamber 11 can be spherical, square or cylindrical, and can be flexibly designed according to actual needs.

[0078] Embodiment four

[0079] The embodiments of the present application disclose a combustion system, which is different from the embodiment one in that the structure of the combustion pipe 1 is different.

[0080] Referring to Figure 10 , specifically, the combustion pipe 1 adopts a U-shaped pipe, and the smoke exhaust pipe 2 and the mixer 3 are located on the same side of the combustion pipe 1. Thus, after the combustion pipe 1 is installed on the pot body 5, a heating loop can be formed in the pot body 5, which can increase the heating area of the combustion pipe 1 and prolong the residence time of heat, thereby further improving the utilization rate of heat.

[0081] The embodiments of the specific embodiments are preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A combustion system, characterized in that, It includes a combustion pipe (1), an exhaust pipe (2), a mixer (3), and a fuel injector (4); The mixer (3) is located outside the combustion tube (1), and the mixer (3) has a first air inlet (32) and a fuel outlet, the fuel outlet being connected to the combustion tube (1); The fuel nozzle (4) is mounted on the mixer (3) and is used to inject fuel into the mixer (3), and the fuel and air enter the combustion tube (1) from the mixer (3); The exhaust pipe (2) is connected to the combustion pipe (1); The combustion tube (1) is placed inside the container to heat the substance inside the container; The end of the combustion tube (1) away from the mixer (3) is closed; The exhaust pipe (2) is arranged in parallel with the combustion pipe (1). The exhaust pipe (2) is connected to the combustion pipe (1) through the connecting pipe (21). The middle position of the exhaust pipe (2) is located inside the container, and the end extends to the outside of the container and serves as an exhaust port (22). The connecting pipe (21) and the combustion pipe (1) and the connecting pipe (21) and the exhaust pipe (2) are all inclined relative to each other, and the end of the connecting pipe (21) connected to the combustion pipe (1) is located away from the exhaust port (22), while the end of the connecting pipe (21) connected to the exhaust pipe (2) is located close to the exhaust port (22). The combustion tube (1) is provided with multiple combustion chambers (11), which are evenly distributed along the length of the combustion tube (1); the inner diameter of the combustion chamber (11) is larger than the inner diameter of the combustion tube (1), and the multiple exhaust pipes (2) correspond one-to-one with the multiple combustion chambers (11), and the exhaust pipes (2) are connected to the combustion chambers (11).

2. The combustion system according to claim 1, characterized in that, The mixer (3) includes a tube (31), one end of which is set as a fuel outlet and is fixedly connected to and communicates with the combustion tube (1). The fuel nozzle (4) is located at the other end of the tube (31) and placed inside the mixer (3). The fuel nozzle (4) is positioned facing the fuel outlet. The first air inlet (32) is opened on the side wall of the tube (31).

3. The combustion system according to claim 2, characterized in that, The tube body (31) is provided with an auxiliary air hole (33) at one end of the fuel nozzle (4), and the auxiliary air hole (33) is spaced apart from the first air inlet (32).

4. The combustion system according to claim 3, characterized in that, The fuel nozzle (4) includes a nozzle pipe (41) and a nozzle (42). The nozzle (42) is located at one end of the nozzle pipe (41) and faces the other end of the nozzle pipe (41). The nozzle pipe (41) is disposed facing the interior of the mixer (3). A second air inlet (43) is provided on the side wall of the nozzle pipe (41), and the second air inlet (43) is disposed facing the auxiliary air hole (33).

5. The combustion system according to claim 1, characterized in that, The combustion tube (1) is configured as a straight tube or a curved tube; the mixer (3) is located at one end of the combustion tube (1), and the exhaust pipe (2) is located at the other end of the combustion tube (1).

6. The combustion system according to claim 1, characterized in that, The exhaust pipe (2) also has an air inlet (23), and the air inlet (23) and the exhaust outlet (22) are located at the two ends of the exhaust pipe (2), respectively.

7. A cookware, characterized in that, It includes a pot body (5), a water filter basket (6) disposed inside the pot body (5), and a combustion system as described in any one of claims 1-6; The combustion tube (1) is located inside the pot body (5) and between the pot body (5) and the filter basket (6); the end of the combustion tube (1) passes through the pot body (5) and extends to the outside of the pot body (5), and the connection between the combustion tube (1) and the pot body (5) is sealed; the mixer (3) is located outside the pot body (5).

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