Gas stove

Abstract

The present application relates to the technical field of kitchen utensils, in particular to a gas stove. The gas stove comprises: a gas outlet part having a first cavity, a second cavity, a first gas inlet, a second gas inlet, a plurality of first outlets and a plurality of second outlets, the first cavity being in communication with the first gas inlet and the first outlets, the second cavity being in communication with the second gas inlet and the second outlets, and the second gas inlet being adapted for water vapor to pass through; and a gas delivery part in communication with the first gas inlet and the second gas inlet to deliver gas to the first cavity and the second cavity. The gas delivery part is divided into two paths, one of which enters the first cavity, and the other of which enters the second cavity together with water vapor. The gas in the first cavity provides a high-temperature environment for the second cavity. Methane in the gas and water vapor produce CO and H2 in the high-temperature environment. The CO and H2 are combusted, and the secondary combustion makes the fire of the gas stove burn more fiercely, improves the efficiency of the gas stove, and improves the cooking experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen utensils, in particular to a gas stove. BACKGROUND

[0002] With the continuous depletion of energy, energy saving and emission reduction has become a big topic in our daily life. The traditional gas stove releases heat by burning gas for our use. The main component of the gas is methane (CH4). Methane burns at room temperature to generate CO2 and H2O. Only by burning methane, the fire of the gas stove burns not enough, which affects the cooking experience. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defect that the fire of the existing gas stove burns not enough, which affects the cooking experience, so as to provide a gas stove.

[0004] In order to solve the above problems, the present application provides a gas stove, comprising: a gas outlet portion having a first cavity, a second cavity, a first gas inlet, a second gas inlet, a plurality of first outlets and a plurality of second outlets, the first cavity being in communication with the first gas inlet and the first outlet, the second cavity being in communication with the second gas inlet and the second outlet, the second gas inlet being adapted for water vapor to pass through; a gas delivery portion in communication with the first gas inlet and the second gas inlet to deliver gas to the first cavity and the second cavity.

[0005] Optionally, the gas stove further comprises a water vapor conversion portion, the water vapor conversion portion being arranged on the gas outlet portion, the water vapor conversion portion having a water inlet and a first water vapor outlet, the first water vapor outlet being in communication with the second gas inlet to deliver water vapor to the second cavity.

[0006] Optionally, the water vapor conversion portion comprises a water inlet pipe, a water vapor conversion pipe in a curved shape and a water vapor outlet pipe connected in sequence, and the water vapor conversion pipe is arranged on the top surface of the gas outlet portion.

[0007] Optionally, the lower ends of the water inlet pipe and the water vapor outlet pipe pass out of the bottom of the gas outlet portion from the top of the gas outlet portion.

[0008] Optionally, the gas stove further comprises a gas distribution portion, the gas distribution portion being arranged in the second cavity and connected with the second gas inlet, the gas distribution portion having a plurality of gas distribution ports.

[0009] Optionally, the gas distribution portion comprises a ring-shaped gas distribution pipe and a gas inlet pipe, the plurality of gas distribution ports are arranged on the gas distribution pipe, and the gas inlet pipe is arranged at the bottom of the gas distribution pipe and connected with the second gas inlet.

[0010] Optionally, the gas stove further comprises a plurality of injectors, the first outlet and the second outlet are provided with injectors, the injectors have vertical injection through holes and oxygen inlets in communication with the injection through holes.

[0011] Optionally, the injector includes an upper injection pipe, a middle injection pipe, and a lower injection pipe arranged sequentially from top to bottom, wherein the outer diameter of the middle injection pipe is smaller than the outer diameter of the upper injection pipe and the outer diameter of the lower injection pipe.

[0012] Optionally, the injection through-hole is provided with an upper orifice plate located above the oxygen inlet, and / or, the injection through-hole is provided with a lower orifice plate located below the oxygen inlet, and / or, a blocking element is provided at the top of the injection through-hole to prevent debris from falling into the injection through-hole.

[0013] Optionally, the first cavity is located inside the second cavity.

[0014] Optionally, the gas stove also includes a steam buffer section, which has a steam inlet and a second steam outlet. The steam inlet is connected to the first steam outlet, and the second steam outlet is connected to the second air inlet.

[0015] Optionally, the steam buffer section also has a third steam outlet, which is adapted to be connected to an external gas-using component.

[0016] Optionally, the gas stove also includes a first three-way pipe and a connecting pipe. The first inlet of the first three-way pipe is connected to the gas delivery unit, the second inlet of the first three-way pipe is connected to the first end of the connecting pipe, the outlet of the first three-way pipe is connected to the second gas inlet, and the second end of the connecting pipe is connected to the second steam outlet.

[0017] Optionally, the connecting pipe includes a lower connecting pipe, a bent pipe and an upper connecting pipe connected in sequence. The lower end of the lower connecting pipe is connected to the second steam outlet, and the upper end of the upper connecting pipe is connected to the second inlet of the first tee pipe.

[0018] Optionally, the gas delivery unit includes a second tee pipe, a first branch pipe, and a second branch pipe. The inlet of the second tee pipe is suitable for connection to an external gas supply component. The first outlet of the second tee pipe is connected to the first end of the first branch pipe, the second outlet of the second tee pipe is connected to the first end of the second branch pipe, the second end of the first branch pipe is connected to the first air inlet, and the second end of the second branch pipe is connected to the second air inlet.

[0019] Optionally, the second branch pipe includes a lower branch pipe and an upper branch pipe connected together. The lower end of the lower branch pipe is connected to the second outlet of the second tee pipe, and the upper end of the upper branch pipe is connected to the second air inlet.

[0020] The present invention has the following advantages:

[0021] 1. After the gas enters the gas stove, it is divided into two paths by the gas delivery section. One path enters the first chamber, where the gas can be completely burned, releasing a large amount of heat. The other path, along with water vapor, enters the second chamber. The gas in the first chamber provides a high-temperature environment for the second chamber. The methane in the gas and the water vapor produce CO and H2 under high temperature. The mixture of CO and H2 is then burned, achieving secondary combustion. This secondary combustion makes the gas stove flame more intense, improves the efficiency of the gas stove, and enhances the cooking experience.

[0022] 2. The gas stove also includes a steam conversion section, which is located on the gas outlet. The steam conversion section has a water inlet and a first steam outlet. The first steam outlet is connected to the second gas inlet to deliver steam to the second chamber. It can use waste heat to turn water into steam, which can significantly improve the gas heat exchange efficiency and the energy utilization rate. In addition, during use, the first steam outlet can also be connected to other devices to make full use of the steam.

[0023] 3. The gas stove also includes a gas distribution section, which is located in the second cavity and connected to the second air inlet. The gas distribution section has several gas outlets, so that the mixed gas formed by CO and H2 is evenly distributed inside the gas distribution section and then flows out from the gas outlets, making the combustion more complete.

[0024] 4. The gas stove also includes several injectors. Injectors are installed at the first and second outlets. The injectors have vertical injection holes and oxygen inlets connected to the injection holes. The oxygen required for combustion flows into the injectors through the oxygen inlets. The setting of the injectors can ensure that methane, CO, H2 and oxygen are fully mixed, making the combustion more intense and the flame stronger. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A partial perspective view of a gas stove according to an embodiment of the present invention is shown;

[0027] Figure 2 It shows Figure 1 A three-dimensional diagram of a gas stove from another angle;

[0028] Figure 3 It shows Figure 1 A front view diagram of a gas stove;

[0029] Figure 4 It shows Figure 1 An exploded view of a gas stove;

[0030] Figure 5 It shows Figure 1 A top view of a gas stove;

[0031] Figure 6 It shows Figure 1 A front view schematic diagram of the gas outlet section of a gas stove;

[0032] Figure 7 It shows Figure 6 A schematic cross-sectional view of the air outlet from direction AA;

[0033] Figure 8 It shows Figure 6 A top view of the air outlet;

[0034] Figure 9 It shows Figure 6 A bottom-view diagram of the air vent;

[0035] Figure 10 It shows Figure 1 A three-dimensional schematic diagram of the injector of a gas stove;

[0036] Figure 11 It shows Figure 10 A front view schematic diagram of the injector;

[0037] Figure 12 It shows Figure 10 A side view of the injector;

[0038] Figure 13 It shows Figure 12 A schematic cross-sectional view of the injector from the BB direction;

[0039] Figure 14 It shows Figure 10 A top view of the injector.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10. Gas outlet; 11. First cavity; 12. Second cavity; 13. First air inlet; 14. Second air inlet; 15. First outlet; 16. Second outlet; 17. Mounting through hole; 20. Steam conversion section; 21. Water inlet pipe; 22. Steam conversion pipe; 23. Steam outlet pipe; 30. Gas delivery section; 31. Second tee pipe; 32. First branch pipe; 33. Second branch pipe; 331. Lower branch pipe; 332. Upper branch pipe; 40. Gas distribution section ; 41. Gas distribution pipe; 42. Air inlet pipe; 50. Injector; 51. Upper injection pipe; 52. Middle injection pipe; 53. Lower injection pipe; 54. Upper orifice plate; 55. Lower orifice plate; 56. Blocking component; 57. Oxygen inlet; 58. Upper conical pipe; 59. Lower conical pipe; 60. Water vapor buffer section; 61. Nut; 71. First tee pipe; 72. Connecting pipe; 721. Lower connecting pipe; 722. Bent pipe; 723. Upper connecting pipe; 73. Water vapor inlet pipe. Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] likeFigure 1 and Figures 6 to 9 As shown, the gas stove in this embodiment includes: a gas outlet 10, a steam conversion section 20, and a gas delivery section 30. The gas outlet 10 has a first cavity 11, a second cavity 12, a first air inlet 13, a second air inlet 14, a plurality of first outlets 15, and a plurality of second outlets 16. The first cavity 11 is connected to the first air inlet 13 and the first outlets 15, and the second cavity 12 is connected to the second air inlet 14 and the second outlets 16. The second air inlet 14 is adapted to supply steam. The gas delivery section 30 is connected to the first air inlet 13 and the second air inlet 14 to deliver gas to the first cavity 11 and the second cavity 12.

[0047] In the gas stove of this embodiment, after the gas enters the stove, it is divided into two paths by the gas delivery section 30. One path enters the first chamber 11, where the gas can be completely burned and release a large amount of heat. The other path enters the second chamber 12 together with water vapor. The gas in the first chamber 11 can provide a high-temperature environment for the second chamber 12. The methane in the gas and water vapor produce CO and H2 under high-temperature conditions. The mixture of CO and H2 is burned, which can achieve secondary combustion. Secondary combustion can make the gas stove burn more vigorously, improve the efficiency of the gas stove, and enhance the cooking experience.

[0048] The main component of gas is methane (CH4). When methane burns at room temperature, it produces CO2 and H2O. This process is an exothermic reaction, releasing a large amount of heat to provide for our use. However, a large portion of the released heat is often lost. Specifically, the heat transfer efficiency of gas is only about 50%, and a significant portion of the heat dissipates from the gas stove, resulting in low energy utilization.

[0049] To prevent heat loss, in this embodiment, the gas stove also includes a steam conversion unit 20, which is disposed on the gas outlet 10. The steam conversion unit 20 has a water inlet and a first steam outlet. The first steam outlet is connected to the second air inlet 14 to deliver steam to the second cavity 12. It can use waste heat to turn water into steam, which can significantly improve the gas heat exchange efficiency and the energy utilization rate. In addition, during use, the first steam outlet can also be connected to other devices to make full use of the steam.

[0050] In this embodiment, as Figure 4 As shown, the gas stove also includes a gas distribution section 40, which is disposed in the second cavity 12 and connected to the second air inlet 14. The gas distribution section 40 has several gas distribution ports, so that the mixed gas formed by CO and H2 is evenly distributed inside the gas distribution section 40 and then flows out from the gas distribution ports, making the combustion more complete.

[0051] In this embodiment, the air distribution section 40 includes an annular air distribution pipe 41 and an air inlet pipe 42. A plurality of air distribution ports are disposed on the air distribution pipe 41, and the air inlet pipe 42 is disposed at the bottom of the air distribution pipe 41 and connected to the second air inlet 14. The plurality of air distribution ports are evenly distributed around the top of the air distribution pipe 41, and the air inlet pipe 42 is conveniently positioned for connection to the second air inlet 14, simplifying the connection method. It is understood that the air distribution section 40 may also include only the air distribution pipe 41, excluding the air inlet pipe 42.

[0052] In this embodiment, as Figures 1 to 3 As shown, the steam conversion unit 20 includes a water inlet pipe 21, a steam conversion pipe 22, and a steam outlet pipe 23 connected in sequence. The steam conversion pipe 22 is curved and is located on the top surface of the steam outlet unit 10. The end of the water inlet pipe 21 away from the steam conversion pipe 22 forms a water inlet, and the end of the steam outlet pipe 23 away from the steam conversion pipe 22 forms a first steam outlet. The water inlet pipe 21 is used to connect to a water supply device such as a tap water supply. Water enters the steam conversion pipe 22 through the water inlet pipe 21. Methane burns in the first chamber 11, releasing a large amount of heat. This heat is transferred to the steam conversion pipe 22, which heats the water inside. When the water reaches its boiling point, it turns into steam. The steam flows out through the steam outlet pipe 23 and then enters the second chamber 12 to react with methane at a high temperature to generate CO and H2.

[0053] In this embodiment, as Figure 2 , Figure 8 and Figure 9 As shown, the lower ends of the water inlet pipe 21 and the steam outlet pipe 23 extend downwards from the top of the air outlet 10 to the bottom of the air outlet 10. The water inlet pipe 21 and the steam outlet pipe 23 do not occupy the lateral space outside the air outlet 10, allowing for a more compact and flexible arrangement. Specifically, the air outlet 10 is provided with two mounting holes 17: one for the water inlet pipe 21 and the other for the steam outlet pipe 23. It can be understood that, as an alternative implementation, the water inlet pipe 21 and the steam outlet pipe 23 can also be arranged outside the air outlet 10, i.e., the water inlet pipe 21 and the steam outlet pipe 23 do not pass through the air outlet 10.

[0054] In this embodiment, as Figure 1 , Figure 8 and Figures 10 to 14As shown, the gas stove also includes several injectors 50. Injectors 50 are located at the first outlet 15 and the second outlet 16. Each injector 50 has a vertical injection through-hole and an oxygen inlet 57 communicating with the injection through-hole. The oxygen required for combustion flows into the injector 50 through the oxygen inlet 57. The injectors 50 ensure that methane, CO, H2, and oxygen are fully mixed, resulting in more intense combustion and a stronger flame. It is understandable that injectors 50 can be omitted; for normal flame heating, a flame without injectors provides better results.

[0055] In this embodiment, the injector 50 includes an upper injection pipe 51, a middle injection pipe 52, and a lower injection pipe 53 arranged sequentially from top to bottom. The outer diameter of the middle injection pipe 52 is smaller than the outer diameter of the upper injection pipe 51 and the outer diameter of the lower injection pipe 53. The orifice diameter of the injection through-hole changes from the lower injection pipe 53 to the middle injection pipe 52. The upper injection pipe 51 provides a combustion chamber for combustion.

[0056] From the reaction CH4(g) + H2O(g) = CO(g) + 3H2(g), 1 mol of CH4 and 1 mol of H2O(g) react to produce 1 mol of CO and 3 mol of H2. This indicates that the reaction involves an increase in volume. Since the space within the reaction chamber is constant, the increased volume of the reaction products naturally leads to increased pressure and a smaller pipe diameter, thus allowing flames to be ejected. According to Bernoulli's principle, under the same pressure, a smaller pipe diameter results in a faster flow rate. A faster flow rate allows the flame to be ejected, and the placement of the central injection pipe 52 facilitates this flame ejection.

[0057] Specifically, the outer diameter of the upper injection pipe 51 is smaller than the outer diameter of the lower injection pipe 53. Of course, the outer diameter of the upper injection pipe 51 is equal to or greater than the outer diameter of the lower injection pipe 53.

[0058] Preferably, the injector 50 further includes an upper conical tube 58 and a lower conical tube 59. The upper conical tube 58 is connected between the middle injection tube 52 and the upper injection tube 51, and the lower conical tube 59 is connected between the middle injection tube 52 and the lower injection tube 53. The upper conical tube 58 and the lower conical tube 59 can guide the gas, making the gas flow path smooth. It is understood that the upper conical tube 58 and the lower conical tube 59 may not be provided.

[0059] In this embodiment, as Figure 5 and Figure 8As shown, a first outlet 15 is located at the center of the air outlet 10, and an injector 50 is located at the center of the air outlet 10. The remaining injectors 50 are arranged in multiple rings from the inside out. The steam conversion pipe 22 includes several arc-shaped pipes and several connecting pipes. The arc-shaped pipes are arranged in sequence from the inside out and connected by the connecting pipes. Arc-shaped pipes are arranged between adjacent rings, on the outermost ring, and on the innermost ring. Specifically, the number of injector rings 50 is three, etc., and the number of injector rings 50 needs to be determined according to the size of the air outlet.

[0060] In existing technology, if gas combustion does not have a windproof design, it can easily ignite surrounding objects or extinguish itself due to wind. To prevent the flame from going out, in this embodiment, such as Figure 13 As shown, an upper orifice plate 54 is provided in the injection through-hole. The upper orifice plate 54 is located above the oxygen inlet 57. The upper orifice plate 54 is heated by the burning flame, making it high temperature. The flame that is extinguished when encountering wind can be quickly reignited through this structure. Specifically, the through holes on the upper orifice plate 54 form multiple rings from the inside to the outside, and a through hole is also provided at the center of the upper orifice plate 54.

[0061] In this embodiment, a lower orifice plate 55 is provided in the injection through-hole. The lower orifice plate 55 is located below the oxygen inlet 57. The lower orifice plate 55 can disrupt the stable CH4 coming out from the lower end, allowing it to mix more fully with the oxygen entering from the adjacent oxygen inlet 57, resulting in more complete combustion. Specifically, the through-holes on the lower orifice plate 55 form multiple rings from the inside out, and a through-hole is also provided at the center of the lower orifice plate 55.

[0062] In this embodiment, a blocking member 56 is provided at the top of the injection through-hole to prevent debris from falling into the injection through-hole and thus into the combustion chamber. Specifically, there are multiple blocking members 56, which are evenly distributed along the circumference of the injection through-hole on the inner wall of the injection through-hole. Preferably, there are four blocking members 56.

[0063] Specifically, an upper orifice plate 54 is provided at the upper end of the central injection pipe 52, and a lower orifice plate 55 is provided at the lower end of the central injection pipe 52.

[0064] In this embodiment, as Figure 7 As shown, the first cavity 11 is located inside the second cavity 12. In this case, the first cavity 11 is cylindrical and the second cavity 12 is annular. It can be understood that, as an alternative implementation, the first cavity 11 is located inside the second cavity 12.

[0065] In this embodiment, as Figure 4As shown, the gas stove also includes a steam buffer section 60, which has a steam inlet and a second steam outlet. The steam inlet is connected to the first steam outlet, and the second steam outlet is connected to the second air inlet 14. The steam formed after the water boils flows into the steam buffer section 60 for buffering. Specifically, the steam buffer section 60 is a buffer tank or buffer box, etc.

[0066] In this embodiment, the steam buffer section 60 also has a third steam outlet, which is suitable for connection to an external steam-using component. The third steam outlet facilitates connection to the external steam-using component. Preferably, a nut 61 is provided at the third steam outlet, which is suitable for connection to the external steam-using component. The external steam-using component is connected to the nut 61, allowing steam to flow into the external steam-using component, simplifying the connection method. The external steam-using component can be a steam oven, a steam cabinet, a water tank, etc. For example, steam is continuously output to the water tank, heating the water in the tank to provide hot water.

[0067] In this embodiment, as Figures 1 to 4 As shown, the gas stove also includes a first three-way pipe 71 and a connecting pipe 72. The first inlet of the first three-way pipe 71 is connected to the gas delivery section 30, the second inlet of the first three-way pipe 71 is connected to the first end of the connecting pipe 72, the outlet of the first three-way pipe 71 is connected to the second air inlet 14, and the second end of the connecting pipe 72 is connected to the second steam outlet. The arrangement of the first three-way pipe 71 and the connecting pipe 72 facilitates the connection between the gas delivery section 30 and the gas outlet 10. When a steam buffer section 60 is provided, the lower end of the connecting pipe 72 is connected to the steam buffer section 60, and the steam buffer section 60 is connected to the steam outlet pipe 23.

[0068] Preferably, the steam buffer section 60 is connected to the steam outlet section 23 via the steam inlet pipe 73, which facilitates the connection between the steam buffer section 60 and the steam conversion section 20. It is understood that the steam inlet pipe 73 may also be omitted, and the steam outlet pipe 23 may be directly connected to the steam buffer section 60.

[0069] In this embodiment, the connecting pipe 72 includes a lower connecting pipe 721, a bent pipe 722, and an upper connecting pipe 723 connected in sequence. The lower end of the lower connecting pipe 721 is connected to the second steam outlet, and the upper end of the upper connecting pipe 723 is connected to the second inlet of the first tee pipe 71. It can be understood that, as an alternative implementation, the connecting pipe 72 can also be a straight pipe extending in a vertical direction.

[0070] In this embodiment, as Figures 1 to 4As shown, the gas delivery unit 30 includes a second three-way pipe 31, a first branch pipe 32, and a second branch pipe 33. The inlet of the second three-way pipe 31 is suitable for connection to an external gas supply component. The first outlet of the second three-way pipe 31 is connected to the first end of the first branch pipe 32, and the second outlet of the second three-way pipe 31 is connected to the first end of the second branch pipe 33. The second end of the first branch pipe 32 is connected to the first air inlet 13, and the second end of the second branch pipe 33 is connected to the second air inlet 14. The arrangement of the second three-way pipe 31, the first branch pipe 32, and the second branch pipe 33 facilitates connection to the external gas supply component and the gas outlet, simplifying the structure of the gas delivery unit 30.

[0071] In this embodiment, the second branch pipe 33 includes a lower branch pipe 331 and an upper branch pipe 332 connected to each other. The lower end of the lower branch pipe 331 is connected to the second outlet of the second tee pipe 31, and the upper end of the upper branch pipe 332 is connected to the second air inlet 14. It can be understood that, as an alternative implementation, the second branch pipe 33 may also be simply a straight pipe extending in a vertical direction.

[0072] The working process of a gas stove is explained below:

[0073] The gas entering the gas stove is split into two paths through the second three-way pipe. One path goes through the first branch pipe 32 to the middle part of the gas outlet 10, where it is completely burned, releasing a large amount of heat, and the flame is ejected from the inner ring injector 50. The other path goes through the second branch pipe 33 and mixes with the water vapor ejected from the buffer tank through the first three-way pipe 71 to the outer ring of the gas outlet 10. In this high-temperature environment, CO and H2 are generated. The generated mixed gas is evenly distributed in the outer ring of the gas outlet 10 through the gas distributor 40 and then ignited. The flame is ejected from the outermost injector 50, achieving secondary combustion. The water vapor conversion section 20 has flowing water flowing around the flame, and the liquid water is vaporized into water vapor at high temperature. The generated water vapor enters the buffer tank through the water vapor inlet pipe 73 and is then connected to the first three-way pipe 71 by the connecting pipe 72 to mix with methane. A nut is provided at the bottom of the buffer tank, through which the steam inside can be connected to external gas-using components for utilization.

[0074] By collecting the excess heat from the combustion of the gas stove, this heat is used to provide a high-temperature environment for the reaction of CH4 and H2O, promoting the reaction to produce CO and H2. The products then undergo a secondary combustion to produce CO2 and H2O. The combustion of 1 mol CH4 releases 890 kJ of heat; the combustion of 1 mol CO releases 282 kJ of heat; the combustion of 1 mol H2 releases 285 kJ of heat; and the production of water gas (CO and H2O) from 1 mol CH4 at high temperature requires the absorption of 206 kJ.

[0075] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0076] 1. A steam conversion section 20 is installed on the gas outlet 10, which can fully utilize the lost heat for secondary use. It also uses the waste heat to provide energy and a high-temperature environment for chemical reactions. Methane and steam are then used to generate CO and H2 under high-temperature conditions. The H2 and CO are then burned, releasing heat for the user. On the one hand, secondary combustion is achieved, which makes the gas stove burn more vigorously and improves the efficiency of the gas stove. On the other hand, the generated steam can be reused to cook rice, heat water, and deliver hot water to the insulated container in a low-carbon and environmentally friendly manner, and can reuse excess energy.

[0077] 2. After high-temperature conversion, the volume of the gas increases. Then, by using Bernoulli's principle to modify the ejector, the ejector 50 is made to be large at both ends and small in the middle. During the process from the lower ejector pipe 53 to the middle ejector pipe 52, the ejection orifice becomes smaller from bottom to top, which is conducive to the ejection of flames.

[0078] 3. An upper perforated plate 54 is installed at the upper end of the injection pipe 52 of the injector, and the oxygen inlet 57 next to it provides oxygen for combustion. This allows the gas and oxygen to mix fully and is conducive to the ejection of the flame. The flame of combustion heats the upper perforated plate 54, and the red-hot upper perforated plate 54 can prevent the combustion from going out, achieving the effect of windproofing, thereby increasing the windproofing capability of the gas stove and enhancing the user experience.

[0079] 4. The lower orifice plate 55 increases the turbulence of combustible gas, allowing it to mix more fully with the oxygen entering from the adjacent oxygen inlet 57, resulting in more complete combustion.

[0080] 5. A nut is installed on the buffer tank so that other equipment can be connected during use to make full use of the steam. When the nut is connected to a water storage container, the steam is introduced into a container filled with cold water. The steam is continuously introduced into the container, and the water can be heated in this process. The system can be switched to a water heating mode to make full use of the waste heat.

[0081] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A gas stove, characterized in that, include: The air outlet (10) has a first cavity (11), a second cavity (12), a first air inlet (13), a second air inlet (14), a plurality of first outlets (15) and a plurality of second outlets (16). The first cavity (11) is connected to the first air inlet (13) and the first outlet (15). The second cavity (12) is connected to the second air inlet (14) and the second outlet (16). The second air inlet (14) is suitable for supplying water vapor. The first cavity (11) is cylindrical and the second cavity (12) is annular. The first cavity (11) is located inside the second cavity (12). The gas delivery unit (30) is connected to the first air inlet (13) and the second air inlet (14) to deliver gas to the first cavity (11) and the second cavity (12). The gas enters the gas stove and splits into two paths. One path enters the first chamber (11) for combustion, while the other path enters the second chamber (12) along with water vapor. The combustion of the gas in the first chamber (11) provides a high-temperature environment for the second chamber (12), allowing the gas and water vapor to produce CO and H2 under high-temperature conditions. The gas stove also includes a steam conversion unit (20), which is disposed on the gas outlet (10). The steam conversion unit (20) has a water inlet and a first steam outlet. The first steam outlet is connected to the second air inlet (14) to deliver steam to the second cavity (12).

2. The gas stove according to claim 1, characterized in that, The steam conversion unit (20) includes a water inlet pipe (21), a curved steam conversion pipe (22), and a steam outlet pipe (23) connected in sequence. The steam conversion pipe (22) is curved and is disposed on the top surface of the steam outlet unit (10).

3. The gas stove according to claim 2, characterized in that, The lower ends of the water inlet pipe (21) and the steam outlet pipe (23) extend downward from the top of the steam outlet (10) to the bottom of the steam outlet (10).

4. The gas stove according to any one of claims 1 to 3, characterized in that, The gas stove also includes a gas distribution section (40), which is disposed in the second cavity (12) and connected to the second air inlet (14). The gas distribution section (40) has a plurality of gas outlets.

5. The gas stove according to claim 4, characterized in that, The air distribution section (40) includes an annular air distribution pipe (41) and an air inlet pipe (42). A plurality of air distribution ports are disposed on the air distribution pipe (41), and the air inlet pipe (42) is disposed at the bottom of the air distribution pipe (41) and connected to the second air inlet (14).

6. The gas stove according to any one of claims 1 to 3, characterized in that, The gas stove also includes several injectors (50), with injectors (50) provided at the first outlet (15) and the second outlet (16). Each injector (50) has a vertical injection through hole and an oxygen inlet (57) communicating with the injection through hole.

7. The gas stove according to claim 6, characterized in that, The injector (50) includes an upper injection pipe (51), a middle injection pipe (52) and a lower injection pipe (53) arranged sequentially from top to bottom. The outer diameter of the middle injection pipe (52) is smaller than the outer diameter of the upper injection pipe (51) and the outer diameter of the lower injection pipe (53).

8. The gas stove according to claim 6, characterized in that, The injection through hole is provided with an upper orifice plate (54) located above the oxygen inlet (57), and / or, the injection through hole is provided with a lower orifice plate (55) located below the oxygen inlet (57), and / or, a blocking member (56) is provided at the top of the injection through hole to prevent debris from falling into the injection through hole.

9. The gas stove according to any one of claims 1 to 3, characterized in that, The first cavity (11) is located inside the second cavity (12).

10. The gas stove according to any one of claims 1 to 3, characterized in that, The gas stove also includes a steam buffer section (60), which has a steam inlet and a second steam outlet. The steam inlet is connected to the first steam outlet, and the second steam outlet is connected to the second air inlet (14).

11. The gas stove according to claim 10, characterized in that, The steam buffer section (60) also has a third steam outlet, which is adapted to be connected to an external gas-using component.

12. The gas stove according to claim 10, characterized in that, The gas stove also includes a first three-way pipe (71) and a connecting pipe (72). The first inlet of the first three-way pipe (71) is connected to the gas delivery unit (30), the second inlet of the first three-way pipe (71) is connected to the first end of the connecting pipe (72), the outlet of the first three-way pipe (71) is connected to the second air inlet (14), and the second end of the connecting pipe (72) is connected to the second steam outlet.

13. The gas stove according to claim 12, characterized in that, The connecting pipe (72) includes a lower connecting pipe (721), a bent pipe (722) and an upper connecting pipe (723) connected in sequence. The lower end of the lower connecting pipe (721) is connected to the second steam outlet, and the upper end of the upper connecting pipe (723) is connected to the second inlet of the first tee pipe (71).

14. The gas stove according to any one of claims 1 to 3, characterized in that, The gas delivery unit (30) includes a second three-way pipe (31), a first branch pipe (32) and a second branch pipe (33). The inlet of the second three-way pipe (31) is adapted to be connected to an external gas supply component. The first outlet of the second three-way pipe (31) is connected to the first end of the first branch pipe (32). The second outlet of the second three-way pipe (31) is connected to the first end of the second branch pipe (33). The second end of the first branch pipe (32) is connected to the first air inlet (13). The second end of the second branch pipe (33) is connected to the second air inlet (14).

15. The gas stove according to claim 14, characterized in that, The second branch pipe (33) includes a lower branch pipe (331) and an upper branch pipe (332) connected to each other. The lower end of the lower branch pipe (331) is connected to the second outlet of the second three-way pipe (31), and the upper end of the upper branch pipe (332) is connected to the second air inlet (14).

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