A combustion device and a gas stove

Abstract

The present application discloses a combustion device and a gas stove, belonging to the field of gas equipment, aiming to solve the technical problem of the imbalance between the gas supply effect and the volume of the existing combustion device. Among them, the combustion device includes a combustion part, a connection part and a first ejector tube. The combustion part is provided with a first combustion air passage, and a first air inlet and a second air inlet are arranged on the adjacent outer walls of the first combustion air passage. The connection part is provided with a connection cavity. The first ejector tube is connected to the connection part, the first ejector tube is communicated with the first air inlet, and the first ejector tube is also communicated with the second air inlet through the connection cavity. In this way, the mixed gas in the first ejector tube can enter the first combustion air passage through the openings on the outer walls of the first combustion air passage, so as to increase the flow rate of the mixed gas entering the first combustion air passage, make the amount of the mixed gas in the first combustion air passage more sufficient, and finally make the stability and intensity of the flame formed by the combustion device of the present application better.

Description

Technical Field

[0001] This application belongs to the technical field of gas equipment, and particularly relates to a combustion device and a gas stove. Background Art

[0002] A gas stove is a device that uses fuel gas as a raw material and generates a flame by mixing the fuel gas with air. An ejector pipe and a combustion air passage are provided in the gas stove. The ejector pipe can introduce the mixed gas of air and fuel gas into the combustion air passage. In order to achieve good ejector effect of the ejector pipe, the opening at the end of the ejector pipe connected to the combustion air passage can be set larger, so that the gas in the ejector pipe can efficiently enter the combustion air passage.

[0003] In the related art, the end of the ejector pipe is directly communicated with the outer wall of the combustion air passage, which results in limited intake air volume of the combustion air passage. Summary of the Invention

[0004] This application aims to at least solve to some extent the technical problem of limited intake air volume of the combustion air passage of the current combustion device. For this purpose, this application provides a combustion device and a gas stove.

[0005] In a first aspect, a combustion device provided by an embodiment of this application includes:

[0006] A combustion part, provided with a first combustion air passage, and a first air inlet and a second air inlet are provided on the outer wall adjacent to the first combustion air passage.

[0007] A connection part, provided with a connection cavity, and

[0008] A first ejector pipe, which is connected to the connection part, the first ejector pipe is communicated with the first air inlet, and the first ejector pipe is also communicated with the second air inlet through the connection cavity.

[0009] In the combustion device provided by the embodiment of this application, a first air inlet and a second air inlet are opened on the outer wall adjacent to the first combustion air passage. The first ejector pipe is directly communicated with the first air inlet, so that part of the mixed gas in the first ejector pipe can be directly introduced into the first combustion air passage. The first ejector pipe can also be communicated with the second air inlet through the connection cavity in the connection part, so that another part of the mixed gas in the first ejector pipe can be introduced into the first combustion air passage through the connection cavity and the second air inlet. The first air inlet and the second air inlet together form the air inlet of the first combustion air passage. In this way, the mixed gas in the first ejector pipe can enter the first combustion air passage through the openings on the outer walls of the first combustion air passage, thereby increasing the flow rate of the mixed gas entering the first combustion air passage, making the amount of mixed gas in the first combustion air passage more sufficient, and ultimately making the stability and intensity of the flame formed by the combustion device of this application better.

[0010] In some embodiments, the first air inlet and the second air inlet are in communication.

[0011] The communication between the first air inlet and the second air inlet can make the opening areas of the first air inlet and the second air inlet relatively the largest, so that the air intake of the first combustion airway is greater.

[0012] In some embodiments, the combustion part is arranged on the first ejector tube, the first air inlet is located at the bottom of the first combustion airway, and the second air inlet is located at the side of the first combustion airway.

[0013] The first air inlet and the second air inlet are respectively arranged on the bottom wall and the side wall of the first combustion airway, so that the first air inlet and the second air inlet are distributed on the adjacent outer walls of the first combustion airway.

[0014] In some embodiments, one end of the first ejector tube communicating with the first combustion airway includes a first part and a second part. The first part communicates with the first air inlet, and the second part communicates with the connection cavity.

[0015] By communicating both the first air inlet and the connection cavity with the outlet end of the first ejector tube, it is not necessary to additionally provide a port on the first ejector tube for communicating with the connection cavity, thereby reducing the manufacturing process difficulty of the first ejector tube.

[0016] In some embodiments, the combustion part is further provided with a second combustion airway. The second combustion airway surrounds the first combustion airway, and there is a gap between the first combustion airway and the second combustion airway.

[0017] By providing the second combustion airway and surrounding the first combustion airway with the second combustion airway, the flame distribution generated on the combustion part becomes more uniform. The distance between the first combustion airway and the second combustion airway can further make the flame distribution on the combustion part uniform, so that external air can also be used to eject air for the first combustion airway and the second combustion airway through the above-mentioned gap.

[0018] In some embodiments, the second air inlet is located on the outer wall of the first combustion airway facing the second combustion airway, and the connection part is located between the first combustion airway and the second combustion airway.

[0019] By arranging the connection part between the first combustion airway and the second combustion airway, it is not necessary to additionally provide a structure for fixedly supporting the connection part on the combustion part, and at the same time, the overall structure of the combustion device becomes more compact.

[0020] In some embodiments, the combustion device further includes a second ejector tube, which is communicated with the second combustion air passage, and the first ejector tube is communicated with the first combustion air passage.

[0021] By providing the second ejector tube, the mixed gas can be supplied to the second combustion air passage alone, so that the amount of the mixed gas in the first combustion air passage and the second combustion air passage is sufficient and stable.

[0022] In some embodiments, a first socket part and a second socket part are arranged on the combustion part. The first socket part sleeved the end of the first ejector tube connected with the first combustion air passage inside, and the second socket part sleeved the end of the second ejector tube connected with the second combustion air passage inside.

[0023] By providing the first socket part, the connection effect between the first ejector tube and the first combustion air passage is more reliable, and the connection sealing performance is also better. By providing the second socket part, the connection effect between the second ejector tube and the second combustion air passage is more reliable, and the connection sealing performance is also better.

[0024] In some embodiments, the openings at the ends of the first ejector tube connected with the first combustion air passage and the openings at the ends of the second ejector tube connected with the second combustion air passage are both circular.

[0025] Setting the ports of the first ejector tube and the second ejector tube to be circular can reduce the manufacturing difficulty of the first ejector tube and the second ejector tube.

[0026] In a second aspect, based on the above combustion device, the present application further provides a gas stove, including the above combustion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 shows the internal structure schematic diagram of the combustion device disclosed in the embodiment of the present application;

[0029] Figure 2 shows Figure 1 the overall structure schematic diagram of the combustion device in

[0030] Figure 3 shows Figure 2 the internal structure schematic diagram of the combustion part in

[0031] Figure 4 showsFigure 1 An upward view schematic diagram of the combustion device in

[0032] Figure 5 shows Figure 1 A front view schematic diagram of the combustion device in

[0033] Reference numerals:

[0034] 100 - First ejector tube, 110 - First tube body section, 120 - Second tube body section, 130 - First gas port,

[0035] 200 - Combustion part, 210 - Air inlet, 220 - First combustion air passage, 221 - First air inlet, 222 - Second air inlet, 221 - First air outlet, 230 - Second combustion air passage, 231 - Second air outlet, 240 - First socket part, 250 - Second socket part,

[0036] 300 - Connection part, 310 - Connection cavity,

[0037] 400 - Second ejector tube, 410 - Second gas port,

[0038] 500 - Water pan. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0040] It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement conditions, etc. of the components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0044] Embodiment 1

[0045] Please refer to Figures 1 to 5 , the embodiment of the present application discloses a combustion device, including a combustion part 200, a connection part 300, and a first ejector tube 100. This combustion device can be applied to a gas stove.

[0046] Among them, the first ejector tube 100 can be communicated with a gas pipe, so that fuel gas can enter the first ejector tube 100. The fuel gas entering the first ejector tube 100 can be mixed with air to form a mixed gas. The first ejector tube 100 is also communicated with the combustion part 200, so that the mixed gas in the first ejector tube 100 can be introduced into the combustion part 200. After the mixed gas enters the combustion part 200, it can be distributed in the combustion part 200, and then discharged from the combustion part 200 and ignited to form a flame.

[0047] A first combustion air passage 220 is provided in the combustion part 200. A first air inlet 221 and a second air inlet 222 are provided on the first combustion air passage 220. The first air inlet 221 and the second air inlet 222 are provided on adjacent walls of the first combustion air passage 220. The first ejector tube 100 is communicated with both the first air inlet 221 and the second air inlet 222 on the first combustion air passage 220, so that the mixed gas in the first ejector tube 100 can be input into the first combustion air passage 220 through the first air inlet 221 and the second air inlet 222. In this way, the mixed gas in the first ejector tube 100 can enter the first combustion air passage 220 in multiple directions, so that the flow rate of the mixed gas input into the first combustion air passage 220 per unit time is sufficient. Correspondingly, the mixed gas can also be distributed in the first combustion air passage 220 faster. In this way, the flame force of the flame formed by igniting the mixed gas will be stronger.

[0048] The connection part 300 has a connection cavity 310 inside. The connection part 300 is in communication with both the first ejector tube 100 and the combustion part 200. Specifically, one end of the first ejector tube 100 can be directly connected to the first air inlet 221. The first ejector tube 100 can also be connected to the connection cavity 310 inside the connection part 300. The connection cavity 310 inside the connection part 300 is connected to the second air inlet 222. In this way, the first ejector tube 100 is also connected to the second air inlet 222, so that the first air inlet 221 and the second air inlet 222 on the first ejector tube 100 and the first combustion air passage 220 can be connected.

[0049] The first ejector tube 100 is connected to the connection part 300, so that part of the mixed gas in the first ejector tube 100 needs to pass through the connection cavity 310 and then enter the first combustion air passage 220 through the second air inlet 222. This can increase the travel of this part of the mixed gas entering the first combustion air passage 220, so that this part of the mixed gas can be more fully mixed and the mixed gas can burn more fully.

[0050] Specifically, when the area of the outer wall of the first combustion air passage 220 for setting the first air inlet 221 is small, which results in the limited diameter of the first air inlet 221, and further results in the diameter of the first air inlet 221 of the first combustion air passage 220 being smaller than the diameter of the outlet end of the first ejector tube 100. This will cause the air intake of the first combustion air passage 220 and the air output of the first ejector tube 100 to be mismatched. Therefore, on the basis of setting the first air inlet 221 on an outer wall of the first combustion air passage 220, and then setting the second air inlet 222 on the outer wall adjacent to the above-mentioned outer wall, the air intake of the first combustion air passage 220 can be increased, so that the air intake of the first combustion air passage 220 and the air output of the first ejector tube 100 are matched.

[0051] In the combustion device provided by the embodiment of the present application, a first air inlet 221 and a second air inlet 222 are formed on adjacent outer walls of the first combustion air passage 220. The first ejector tube 100 is directly communicated with the first air inlet 221, so that a part of the mixed gas in the first ejector tube 100 can be directly introduced into the first combustion air passage 220. The first ejector tube 100 can also be communicated with the second air inlet 222 through a connection cavity 310 in the connection part 300, so that another part of the mixed gas in the first ejector tube 100 can be introduced into the first combustion air passage 220 through the connection cavity 310 and the second air inlet 222. The first air inlet 221 and the second air inlet 222 together form the air inlet of the first combustion air passage 220. In this way, the mixed gas in the first ejector tube 100 can enter the first combustion air passage 220 through openings on multiple outer walls of the first combustion air passage 220, thereby increasing the flow rate of the mixed gas entering the first combustion air passage 220, making the amount of the mixed gas in the first combustion air passage 220 more sufficient, and finally making the stability and intensity of the flame formed by the combustion device of the present application better.

[0052] Certainly, in other embodiments, the first combustion air passage 220 can also be enlarged so that the air inlet formed on the outer wall where the first combustion air passage 220 is connected to the first ejector tube 100 can correspond to the port size of the first ejector tube 100, so that a relatively large flow rate of the first ejector tube 100 can enter the first combustion air passage 220, thereby improving the air intake effect of the first combustion air passage 220.

[0053] In some embodiments, in order to further increase the size of the air inlet jointly formed by the above-mentioned first air inlet 221 and the second air inlet 222, the first air inlet 221 and the second air inlet 222 can be communicated. Specifically, the first air inlet 221 and the second air inlet 222 formed on adjacent outer walls of the first combustion air passage 220 can extend towards the junction of the adjacent outer walls where the first air inlet 221 and the second air inlet 222 are arranged, so that the first air inlet 221 and the second air inlet 222 can be connected. In this way, the first air inlet 221 and the second air inlet 222 form an integral opening, so that the air inlet jointly formed by the first air inlet 221 and the second air inlet 222 is relatively the largest. This can increase the flow rate of the mixed gas entering the first combustion air passage 220, make the amount of the mixed gas in the first combustion air passage 220 more sufficient, and finally make the stability and intensity of the flame formed by the combustion device of the present application better.

[0054] In some embodiments, the above-mentioned first air inlet 221 may be disposed at the bottom of the first combustion airway 220, so that the first ejector tube 100 can be directly communicated with the bottom of the first combustion airway 220. The above-mentioned second air inlet 222 may be disposed on the side wall of the first combustion airway 220. Correspondingly, the first ejector tube 100 can also be communicated with the side wall of the first combustion airway 220 through the connecting portion 300. In this way, the first air inlet 221 and the second air inlet 222 can be located on the adjacent outer walls of the first combustion airway 220, so that the first air inlet 221 and the second air inlet 222 are dispersed on the adjacent outer walls of the first combustion airway 220, thereby making full use of the outer wall of the first combustion airway 220, so that the volume of the first combustion airway 220 can be correspondingly reduced, and finally the structure of the combustion device of the present application can be made compact.

[0055] Of course, in other embodiments, the above-mentioned first air inlet 221 may also be disposed on the side wall of the first combustion airway 220, and the second air inlet 222 may also be disposed at the bottom of the first combustion airway 220. In this way, the first ejector tube 100 can be directly communicated with the side wall of the first combustion airway 220, and the connecting portion 300 can be connected to the bottom of the first combustion airway 220 and the first ejector tube 100, so that the first ejector tube 100 is communicated with the second air inlet 222 through the connecting cavity 310 in the connecting portion 300.

[0056] In some embodiments, when the diameter of the opening of the first air inlet 221 on the first combustion airway 220 is smaller than the diameter of the opening of the air outlet end of the first ejector tube 100, the first air inlet 221 of the first combustion airway 220 can be docked with the air outlet end of the first ejector tube 100. At the same time, the connecting cavity 310 of the connecting portion 300 is also docked with the air outlet end of the first ejector tube 100. In this way, the air outlet end of the first ejector tube 100 can be fully utilized, and there is no need to additionally provide an opening on the side wall of the first ejector tube 100 for communicating with the connecting cavity 310 of the connecting portion 300, so that the overall structure of the first ejector tube 100, the connecting portion 300 and the first combustion airway 220 after connection is compact.

[0057] Specifically, the air outlet end of the first ejector tube 100 communicating with the first combustion airway 220 has a first part and a second part. The first part can be communicated with the first air inlet 221 of the first combustion airway 220, and the connecting cavity 310 of the connecting portion 300 can be communicated with the second part. In this way, after the mixed gas in the first ejector tube 100 is discharged through the air outlet end, part of the mixed gas directly enters the first combustion airway 220 through the first air inlet 221, and the other part of the mixed gas enters the first combustion airway 220 through the connecting cavity 310 of the connecting portion 300 and the second air inlet 222.

[0058] Of course, in other embodiments, a plurality of air outlet ends may be provided on the first ejector tube 100. One of the air outlet ends is docked with the first air inlet 221 of the first combustion air passage 220, so that part of the mixed gas can directly enter the first combustion air passage 220. Another air outlet end may be communicated with the connection cavity 310 of the connection part 300. Another part of the mixed gas in the first ejector tube 100 can enter the first combustion air passage 220 through the connection cavity 310 and the second air inlet 222. In this way, the mixed gas in the first ejector tube 100 can also be introduced into the first combustion air passage 220 through the first air inlet 221 and the second air inlet 222. At the same time, it can also ensure that the mixed gas entering the first combustion air passage 220 through the connection cavity 310 does not interfere with the mixed gas directly input into the first combustion air passage 220 through the first ejector tube 100, so as to maintain the airflow stability of these two parts of the mixed gas, so that these two parts of the mixed gas can enter the first combustion air passage 220 more efficiently.

[0059] In some embodiments, in order to enable the connection cavity 310 in the connection part 300 to communicate with the connection part 300, a first opening and a second opening may be formed on the connection part 300. The first opening and the second opening are communicated with the connection cavity 310 in the connection part 300. In this way, the mixed gas in the first ejector tube 100 can enter the connection cavity 310 through the first opening and be discharged from the connection cavity 310 through the second opening.

[0060] The axis of the first opening intersects with the axis of the second opening, so that the orientations of the first opening and the second opening are different. Therefore, when the mixed gas enters the connection cavity 310 and is discharged from the connection cavity 310, the flow direction of the mixed gas will change, so that this part of the mixed gas passing through the connection cavity 310 can be more fully mixed, so as to increase the oxygen content of the mixed gas again.

[0061] Specifically, when the adjacent side walls of the first combustion air passage 220 for setting the first air inlet 221 and the second air inlet 222 are perpendicular to each other, the first opening and the second opening on the connection part 300 are also perpendicular to each other. The included angle between the axis of the first opening and the axis of the second opening should be coordinated with the included angle between the adjacent side walls of the first combustion air passage 220.

[0062] In some embodiments, the above-described first ejector tube 100 includes a first tube body section 110 and a second tube body section 120. The second tube body section 120 is in communication with the first tube body section 110, and one end of the second tube body section 120 facing away from the first tube body section 110 is oriented towards the bottom wall of the first combustion air passage 220, so that the second tube body section 120 can communicate with the first air inlet 221 on the first combustion air passage 220. The first tube body section 110 is bent relative to the second tube body section 120, so that the first ejector tube 100 formed by connecting the first tube body section 110 and the second tube body section 120 has a longer length, thereby increasing the travel distance of the mixed gas passing through the first ejector tube 100.

[0063] Specifically, the first tube body section 110 can be arranged parallel to the bottom wall of the first combustion air passage 220, and the second tube body section 120 can be arranged perpendicular to the bottom wall of the first combustion air passage 220, so that the first tube body section 110 and the second tube body section 120 are bent relative to each other to achieve the purpose of increasing the length of the first ejector tube 100.

[0064] Of course, in other embodiments, when the first air inlet 221 is arranged on the side wall of the first combustion air passage 220 and the second air inlet 222 is arranged on the bottom wall of the first combustion air passage 220, the first tube body section 110 can be arranged parallel to the bottom wall of the first combustion air passage 220 and perpendicular to the side wall of the first combustion air passage 220, the second tube body section 120 can be arranged perpendicular to the bottom wall of the first combustion air passage 220, and the connecting portion 300 can be arranged to fit on the bottom wall of the first combustion air passage 220, so that the first combustion air passage 220 can also communicate with the first air inlet 221 and the second air inlet 222 of the first combustion air passage 220 at the same time.

[0065] The inner diameter of the second tube body section 120 is larger than the inner diameter of the first tube body section 110. It should be understood that the above-described first ejector tube 100 is a Venturi tube, which is an important component of combustion devices such as gas stoves. Fuel gas and air can both be introduced into the Venturi tube and mixed therein. The fuel gas is actively input into the Venturi tube through a gas pipe, and the external air is brought into the Venturi tube by the fuel gas passing through the Venturi tube. By setting the first ejector tube 100 as a Venturi tube, the flow rate of the mixed gas discharged through the first ejector tube 100 can be increased.

[0066] In some embodiments, the above combustion section 200 further includes a second combustion air passage 230. The second combustion air passage 230 surrounds the first combustion air passage 220. The first ejector tube 100 can also be communicated with the second combustion air passage 230. In this way, the mixed gas in the first ejector tube 100 can also be introduced into the second combustion air passage 230, so that the mixed gas can be distributed in the first combustion air passage 220 and the second combustion air passage 230. In this way, the mixed gas in the first combustion air passage 220 and the second combustion air passage 230 can be ignited, so that a larger range of flames can be formed on the combustion section 200.

[0067] Specifically, the first combustion air passage 220 can be set as annular, and the second combustion air passage 230 can also be set as annular. In this way, the flame formed on the first combustion air passage 220 is the central flame, and the flame generated on the second combustion air passage 230 is the outer ring flame. By heating the object to be heated with the central flame and the outer ring flame simultaneously, the object to be heated can be heated more evenly, so as to improve the heating efficiency. There is a gap between the first combustion air passage 220 and the second combustion air passage 230, so that the inner ring flame generated on the first combustion air passage 220 and the outer ring flame generated on the second combustion air passage 230 maintain a certain distance, so that the distribution range of the flame generated on the combustion section 200 is larger.

[0068] At the same time, the gap between the first combustion air passage 220 and the second burner air passage can also form an air inlet 210, so that the air outside the combustion device can enter the area between the first combustion air passage 220 and the second combustion air passage 230 through the air inlet 210, so as to supplement air for the first combustion air passage 220 and the second combustion air passage 230.

[0069] It should be understood that the connection mode of the first ejector tube 100 and the second combustion air passage 230 can also adopt the same connection mode as that of the first ejector tube 100 and the first combustion air passage 220, that is, air inlets can also be opened on the adjacent side walls of the second combustion air passage 230, and the first ejector tube 100 can be communicated with the air inlets on the adjacent side walls of the second combustion air passage 230 at the same time. In this way, the mixed gas in the first ejector tube 100 can also enter the second combustion air passage 230 through the multiple air inlets on the second combustion air passage 230, so as to improve the efficiency of introducing the mixed gas in the first ejector tube 100 into the second burner air passage.

[0070] In some embodiments, the above-mentioned second air inlet 222 may be disposed on the outer wall of the first combustion airway 220 on the side facing the second combustion airway 230, and the first air inlet 221 is still disposed at the bottom of the first combustion airway 220. Correspondingly, the connecting portion 300 may be disposed at the gap between the first combustion airway 220 and the second combustion airway 230, so that the connecting portion 300 can make full use of the space between the first combustion airway 220 and the second combustion airway 230, making the structure of the combustion device of the present application compact.

[0071] Specifically, the opposite ends of the connecting portion 300 may respectively abut against the outer wall of the second combustion airway 230 and the outer wall of the first combustion airway 220. In this way, the first combustion airway 220 and the second combustion airway 230 can provide an installation basis for the connecting portion 300, enabling the connecting portion 300 to be fixedly installed between the first combustion airway 220 and the second combustion airway 230. At the same time, this can also enable the connecting portion 300 to make full use of the space between the first combustion airway 220 and the second combustion airway 230, so that the volume of the connecting portion 300 can be set relatively large. Correspondingly, the connecting cavity 310 in the connecting portion 300 also has a relatively large volume, and more mixed gas can be accommodated in the connecting cavity 310, so that the mixed gas in the first ejector tube 100 can be more efficiently led out of the first ejector tube 100.

[0072] In some embodiments, in order to more efficiently introduce the mixed gas into the first combustion airway 220 and the second combustion airway 230, the combustion device of the present application may further be provided with a second ejector tube 400. The second ejector tube 400 is communicated with the second combustion airway 230, and the first ejector tube 100 is communicated with the first combustion airway 220. In this way, the first combustion airway 220 and the second combustion airway 230 can be supplied with gas through the first ejector tube 100 and the second ejector tube 400 respectively. Therefore, the whole formed by the connection of the first ejector tube 100 and the first combustion airway 220 is independent of the whole formed by the connection of the second ejector tube 400 and the second combustion airway 230. The mixed gas entering the first combustion airway 220 through the first ejector tube 100 will not interfere with the mixed gas entering the second combustion airway 230 through the second ejector tube 400, ensuring that there is a sufficient amount of gas in the first combustion airway 220 and the second combustion airway 230.

[0073] It should be understood that the second ejector tube 400 and the second combustion air passage 230 can also adopt the same connection method as the first ejector tube 100 and the first combustion air passage 220. Specifically, air inlets can be respectively arranged on the outer walls adjacent to the second combustion air passage 230, and the second ejector tube 400 is connected to multiple air inlets on the second combustion air passage 230 at the same time. The mixed gas in the second ejector tube 400 can enter the second combustion air passage 230 through multiple air inlets on the second combustion air passage 230 at the same time, so that the mixed gas in the second ejector tube 400 can enter the second combustion air passage 230 in sufficient quantity.

[0074] In some embodiments, in order to facilitate the connection between the first ejector tube 100 and the first combustion air passage 220, and to facilitate the connection between the second ejector tube 400 and the second combustion air passage 230, a first socket part 240 and a second socket part 250 can be opened on the combustion part 200. The first socket part 240 and the second socket part 250 can respectively sleeve the first ejector tube 100 and the second ejector tube 400 inside. Specifically, the inner diameter of the first socket part 240 is matched with the outer diameter of the air outlet end of the first ejector tube 100 to limit the first ejector tube 100 in the radial direction of the first socket part 240. The inner diameter of the second socket part 250 is matched with the outer diameter of the air outlet end of the second ejector tube 400 to limit the second ejector tube 400 in the radial direction of the second socket part 250. This can prevent the first ejector tube 100 and the second ejector tube 400 from shaking, so that the first ejector tube 100 and the second ejector tube 400 can be kept stable.

[0075] At the same time, the connection by the socket method also makes the first ejector tube 100 and the first socket part 240, and the second ejector tube 400 and the second socket part 250 have better sealing performance compared with the butt joint connection method in the related art. Furthermore, the connection between the first ejector tube 100 and the first combustion air passage 220 has better sealing performance, and the connection between the second ejector tube 400 and the second combustion air passage 230 also has better sealing performance.

[0076] Of course, in order to further enhance the above-mentioned sealing effect, a sealing ring can be sleeved on the outer wall of the air outlet end of the first ejector tube 100, and the sealing ring is embedded between the air outlet end of the first ejector tube 100 and the first socket part 240. A sealing ring can also be sleeved on the outer wall of the air outlet end of the second ejector tube 400, and the sealing ring is also embedded between the air outlet end of the second ejector tube 400 and the second socket part 250.

[0077] In some embodiments, the air outlet of the first ejector tube 100 for communicating with the first combustion air passage 220 can be set to be circular, and the air outlet of the second ejector tube 400 for communicating with the second combustion air passage 230 can also be set to be circular. The circular air outlet can reduce the manufacturing difficulty of the first ejector tube 100 and the second ejector tube 400.

[0078] In some embodiments, the combustion device of the present application further includes a water receiving tray 500, which is arranged on the lower side of the combustion part 200 and is used to receive the dirt on the combustion part 200.

[0079] Embodiment 2

[0080] Based on the above combustion device, the present application further provides a gas stove, which includes the above combustion device.

[0081] Of course, the combustion device of the present application can also be applied to other heating devices, and the present application does not limit this.

[0082] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

Claims

1. A combustion device, characterized in that, Comprising: A combustion section (200) provided with a first combustion air passage (220), on the outer wall adjacent to the first combustion air passage (220), a first air inlet (221) and a second air inlet (222) are provided. A second combustion air passage (230) which surrounds the first combustion air passage (220), and there is a gap between the first combustion air passage (220) and the second combustion air passage (230). A connection section (300) provided with a connection cavity (310), and A first ejector tube (100) connected to the connection section (300), the first ejector tube (100) is communicated with the first air inlet (221), and the first ejector tube (100) is also communicated with the second air inlet (222) through the connection cavity (310). The first air inlet (221) is communicated with the second air inlet (222).

2. The combustion device according to claim 1, characterized in that, The combustion section (200) is arranged on the first ejector tube (100), the first air inlet (221) is located on the bottom wall of the first combustion air passage (220), and the second air inlet (222) is located on the side wall of the first combustion air passage (220).

3. The combustion device according to claim 1, characterized in that, One end of the first ejector tube (100) communicated with the first combustion air passage (220) includes a first part and a second part, the first part is communicated with the first air inlet (221), and the second part is communicated with the connection cavity (310).

4. The combustion device according to claim 1, characterized in that, The second air inlet (222) is located on the adjacent side wall of the first combustion air passage (220) and the second combustion air passage (230), and the connection section (300) is located between the first combustion air passage (220) and the second combustion air passage (230).

5. The combustion device according to claim 4, characterized in that, The combustion device further includes a second ejector tube (400), and the second ejector tube (400) is communicated with the second combustion air passage (230).

6. The combustion device according to claim 5, characterized in that On the combustion section (200), a first socket part (240) and a second socket part (250) are provided. The first socket part (240) sleeved the end of the first ejector tube (100) connected to the first combustion air passage (220) inside, and the second socket part (250) sleeved the end of the second ejector tube (400) connected to the second combustion air passage (230) inside.

7. The combustion device according to claim 5, characterized in that, The cross-section of the opening at one end of the first ejector tube (100) connected to the first combustion air passage (220) and the cross-section of the opening at one end of the second ejector tube (400) connected to the second combustion air passage (230) are circular.

8. A gas stove, characterized in that, Comprising the combustion device according to any one of claims 1-7.

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