A burner ejector system and a gas stove using the same

Abstract

The present application relates to a kind of burner ejector system and the gas stove of application with the ejector system, the burner ejector system includes: air inlet seat, air inlet seat is formed with gas outlet passage and air blast passage;Air blast device is used to air blast into air blast passage;Air inlet seat is also formed with air inlet cavity that is respectively communicated with air blast device and air blast passage, along the flow direction of air, air inlet cavity is located the upstream of air blast passage;Air inlet seat is also provided with the partitioning rib for separating air inlet cavity, partitioning rib is formed with gas inlet passage, gas inlet passage is respectively communicated with gas outlet passage and the gas source of outside gas fluid communication.The advantages of the present application compared with prior art are: using partitioning rib can form gas inlet passage, and air inlet cavity can be separated, so as to guide and straighten the air that air blast device blasts into, and the gas in gas inlet passage can be cooled.

Description

Technical Field

[0001] This invention relates to the field of household kitchen appliances technology, and more particularly to a burner ejector system and a gas stove using the ejector system. Background Technology

[0002] Most gas stoves on the market currently use atmospheric mixing combustion. During combustion, to ensure combustion stability and prevent backfire, the gas needs to be mixed with air (primary air) to form premixed gas. However, this traditional gas-air mixing method still has drawbacks such as insufficient mixing, resulting in incomplete combustion, low thermal efficiency, and excessive flue gas emissions.

[0003] To address this, some burners now supplement the insufficient natural air intake by incorporating a blower. For example, Chinese patent application No. 202011232358.9 (publication No. CN112283705A) discloses a blower-type burner, which includes a burner body. The burner body includes a burner head, an inner ring ejector tube, and an outer ring ejector tube. A blower device is provided at the end of the outer ring ejector tube away from the burner head. The blower device includes a housing with a through-flow blower channel. It also includes an air intake hood disposed on the burner body. The air intake hood is provided with a mounting platform, and the mounting platform has an air inlet adapted to the blower channel. The inner ring ejector tube is provided with an inner ring nozzle, and the outer ring ejector tube is provided with an outer ring nozzle.

[0004] This burner combines natural injection and forced air replenishment, which can promote complete combustion. However, the gas nozzle and air intake hood are not organically integrated, resulting in a loose overall structure that cannot adapt to the limited installation space inside the stove. Furthermore, the air blown into the air intake hood by the blower cannot be effectively guided to flow out of the air outlet, easily forming turbulence within the air intake hood and reducing air replenishment efficiency. Therefore, further improvements are needed. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a burner ejector system that addresses the shortcomings of the prior art, making the overall structure compact and facilitating the guidance and rectification of the blower airflow.

[0006] The second technical problem to be solved by the present invention is to provide a gas stove that uses the above-mentioned burner ejector system.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a burner ejector system, comprising:

[0008] An air intake seat, wherein a gas outlet passage and a blower passage are formed within the air intake seat;

[0009] A blower is used to blow air into the blower channel;

[0010] Its features are:

[0011] The air intake seat also forms an air intake chamber that is fluidly connected to the blower and the blower channel respectively. Along the direction of air flow, the air intake chamber is located upstream of the blower channel.

[0012] The air intake seat is also provided with a partition rib for separating the air intake chamber. A gas intake channel is formed in the partition rib, and the gas intake channel is in fluid communication with the gas outlet channel and the external gas source.

[0013] By setting up the partition ribs, the partition ribs can both form a gas intake channel, allowing the air blown in by the blower to fully contact the surface of the partition ribs, cool the gas in the gas intake channel, and reduce the gas rising; and also divide the intake chamber, thereby accelerating the air blown in by the blower.

[0014] Preferably, the blower channel includes at least two sub-blower channels with different flow rates, and the partition rib divides the air intake chamber into at least two sub-cavities, each sub-cavity corresponding to at least one sub-blower channel, thereby guiding and rectifying the air blown in by the blower device, avoiding turbulence and reducing the ejection effect.

[0015] Furthermore, both the gas inlet channel and the gas outlet channel extend laterally and are perpendicular to each other, while the gas outlet channel and the blower channel extend in the same direction. The gas outlet channel faces the gas inlet, and the blower device includes a blower with an air outlet facing the gas inlet of the gas outlet channel, ensuring that the blower's air outlet direction is consistent with the extension direction of the gas outlet channel. This results in a compact and highly integrated intake structure, eliminating the need for additional openings for the gas pipe to pass through, and ensuring good sealing.

[0016] Furthermore, to facilitate fluid communication between the blower and the air intake chamber, the blower device also includes a hollow outer shell that is fluidly connected to the air intake chamber. The outer shell is disposed between the air intake seat and the blower, and an air outlet chamber is formed inside the outer shell. The air outlet of the blower is disposed on the side of the outer shell away from the air intake chamber and is fluidly connected to the air outlet chamber.

[0017] Furthermore, the blower channel includes at least two sub-blower channels with different flow rates, and the air outlet is opposite to the sub-blower channel with the larger flow rate, thereby meeting the needs of different air volumes.

[0018] Furthermore, in order to ensure uniform pressure in the air outlet chamber, the volume of the air outlet chamber inside the outer casing gradually decreases from the side corresponding to the sub-blowing channel with a larger flow rate to the side corresponding to the sub-blowing channel with a smaller flow rate.

[0019] Furthermore, in order to facilitate guiding the airflow to enter the sub-blowing channel with a smaller flow rate, the inner wall surface of the outer shell connected to the air outlet of the blower forms a guide surface. The guide surface gradually slopes towards the air inlet chamber from the point connected to the air outlet of the blower towards the position corresponding to the sub-blowing channel with a smaller flow rate.

[0020] To avoid uneven air ejection caused by the rising of gas and air, the dividing ribs are arranged horizontally to divide the air intake chamber into vertically arranged sub-cavities. There are at least two sub-blowing channels, each with an air outlet, resulting in at least two air outlets. The gas outlet channel has a gas outlet, and at least one air outlet is provided above and below the gas outlet.

[0021] To further avoid uneven ejection of air caused by gas and air rising, the flow area of ​​the air outlet located above the gas outlet should not be less than the flow area of ​​the air outlet located below the gas outlet.

[0022] To better guide air from the intake chamber into the sub-blowing channel, the intake chamber is also provided with a dividing section for guiding the air in the intake chamber to the sub-blowing channel. The dividing section is located between sub-blowing channels with different flow rates. Thus, the dividing section can also serve to divide the cavities corresponding to the inner and outer ring ejector tubes.

[0023] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a gas stove, characterized in that: it applies a burner injection system as described above.

[0024] Compared with the prior art, the advantages of the present invention are: by setting the partition ribs, the partition ribs can both form the gas intake channel and divide the intake chamber, thereby guiding and rectifying the air blown in by the blower. Moreover, the air can fully contact the surface of the partition ribs before flowing from the intake chamber into the blower channel, thereby cooling the gas in the gas intake channel and reducing the rise of the gas. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the burner ejector system according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the burner ejector system concealing the ejector tube and blower according to an embodiment of the present invention;

[0027] Figure 3This is a schematic diagram of a burner ejector system concealing a blower according to an embodiment of the present invention (and...). Figure 2 (Different perspectives);

[0028] Figure 4 This is a cross-sectional view (vertical section) of the burner ejector system with the blower hidden in an embodiment of the present invention.

[0029] Figure 5 This is a cross-sectional view (horizontal section) of the burner ejector system according to an embodiment of the present invention;

[0030] Figure 6 This is a cross-sectional view (horizontal section, with) of the burner ejector system according to an embodiment of the present invention. Figure 5 (The cross-section is parallel). Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and 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. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0033] See Figures 1-6 This is the preferred embodiment of the invention. The burner ejector system of this embodiment includes an air inlet seat 1 and a blower device 3. The blower device 3 blows air into the air inlet seat 1 and then supplies it to the ejector tube (not shown in the drawings, representing prior art). The above-described burner ejector system can be applied to gas stoves, which may also include a burner.

[0034] The intake seat 1 has a gas outlet passage 11 and a blower passage. The gas outlet passage 11 has a gas inlet 111 and a gas outlet 112. The gas inlet 111 is used to communicate with the gas source, and the gas outlet 112 is used to inject the gas into the ejector tube.

[0035] Existing burners typically include an inner ring burner and an outer ring burner, thus heating the pot body in a combination of external and internal annular flames. Accordingly, this embodiment has two ejector tubes, one corresponding to the outer ring and one to the inner ring (this correspondence between the ejector tube and the burner is existing technology, as described in the background section regarding large and small ejector tubes). One ejector tube has a higher flow rate than the other. Therefore, this embodiment has two sets of gas outlet channels 11; alternatively, there could be three or more sets, as long as at least two gas outlet channels 11 are ensured, and one of them has a higher flow rate than the others. Figure 2 As shown, the two gas outlets 112 on the left correspond to the ejector tube of the outer ring, and the one set of gas outlets 112 on the right corresponds to the ejector tube of the inner ring.

[0036] Correspondingly, the blower channel includes at least two sub-blower channels 12, and each ejector tube corresponds to a gas outlet channel 11 and at least one sub-blower channel 12. In this embodiment, each ejector tube corresponds to two sub-blower channels 12.

[0037] The sub-blowing channel 12 has an air inlet 121 and an air outlet 122. The air inlet 121 is in fluid communication with the blower 3, and the blower 3 blows air into the sub-blowing channel 12 from the air inlet 121. The air outlet 122 is used to replenish the air to the ejector tube. In this embodiment, the gas outlet channel 11 and the sub-blowing channel 12 extend in the same direction, and they can be parallel to each other or form a certain angle between them. The gas inlet 111 and the gas outlet 112 are respectively formed at two opposite ends of the gas outlet channel 11, and the air inlet 121 and the air outlet 122 are respectively formed at two opposite ends of the sub-blowing channel 12. The gas outlet 112 can be realized by opening the gas outlet channel 11, or it can be realized by setting a nozzle at the end of the gas outlet channel 11.

[0038] The air intake seat 1 also has an air intake chamber 13 that is open to the blower device 3. In the direction of air flow of the blower device 3, the air intake chamber 13 is located upstream of the sub-blower channel 12. The air intake seat 1 has the aforementioned air inlet 121 on the wall of the lowest part of the air intake chamber 13.

[0039] The air intake seat 1 can be a single component with the aforementioned gas outlet channel 11, each sub-blowing channel, and air intake chamber 13 formed therein, or it can be an assembly that arranges and confines the independent gas outlet channel 11, sub-blowing channels, and air intake chamber 13 together. The gas outlet channel 11 and each sub-blowing channel are isolated from each other.

[0040] The intake seat 1 is also provided with a partition rib 14, and a gas intake passage 141 is formed within the partition rib 14. The end of the gas intake passage 141 facing outward from the intake seat 1 is used for fluid communication with an external gas source (usually connected to a gas supply pipeline). Similarly, the partition rib 14 can be a single component with the gas intake passage 141 formed therein, or it can be an assembly that installs and confines the independent gas intake passages 141 together.

[0041] By setting the partition rib 14, the air intake chamber 13 is divided into at least two independent sub-cavities 131, thereby dividing the air intake chamber 13 into smaller cavities. Each sub-cavity 131 has a smaller flow area, which can separate the air introduced into the air intake chamber 13 by the blower 3 and allow it to flow downstream from different sub-cavities 131, thereby accelerating the airflow. In this embodiment, preferably, each sub-cavity 131 corresponds to a sub-blower channel (air inlet 121). Thus, the partition rib 14 serves both to form the gas intake channel 141 and to divide the air intake chamber 13, thereby guiding and rectifying the air blown in by the blower 3. Since the airflow direction of the blower 3 is intersecting with that of the gas intake channel 141 (preferably in a roughly perpendicular shape), the air can fully contact the surface of the partition rib 14 before flowing from the air intake chamber 13 into the sub-blower channel 12, thus cooling the gas in the gas intake channel 141. Alternatively, some sub-cavities 131 may correspond to at least one sub-blowing channel 12, while some sub-cavities 131 may not have a corresponding sub-blowing channel 12.

[0042] As the heat generated at the burner head during operation is transferred to the burner body and surrounding components, the surrounding air is gradually heated, and the temperature increase is more pronounced closer to the burner. When high temperature is reached, the gas ejected from the gas outlet 112 is rapidly heated, its volume increases rapidly, and its density decreases. The influence of buoyancy on the direction of gas ejection cannot be ignored, and the trajectory of the gas ejection will have a certain upward tilt. This increases the amount of air ejected below the horizontal plane where the center of the gas outlet 112 is located (the space for naturally ejected air to enter increases), while decreasing the amount of air ejected above the plane where the center of the gas outlet 112 is located (the space for naturally ejected air to enter decreases). In addition, the naturally ejected outside air also tends to rise after being rapidly heated, further reducing the amount of air above the plane where the center of the gas outlet 112 is located. Therefore, the mixed gas ejected from the gas outlet 112 and the gas naturally drawn into the ejector tube by the outside air will have a smaller gas flow rate above the plane where the center of the gas outlet 112 is located compared to the smaller gas flow rate below the plane where the center of the gas outlet 112 is located. This will lead to uneven mixing, reduced ejection efficiency, and even incomplete combustion. The cooling effect of the aforementioned separating rib 14 can reduce this unevenness caused by the rising of the gas.

[0043] In this embodiment, the dividing rib 14 is arranged laterally, especially horizontally (in the installed state), thereby dividing the air intake chamber 13 into upper and lower sub-chambers 131. The gas intake passage 141 is arranged at an angle to the aforementioned gas outlet passage 11. Preferably, both the gas intake passage 141 and the gas outlet passage 11 extend horizontally and are perpendicular to each other. The gas outlet passage 11 and the sub-blower passage 12 extend in the same direction, and they can be parallel to each other or form a certain angle between them.

[0044] To address the issues of gas and air rising, at least two air outlets 122 are provided. At least one air outlet 122 is positioned above and below the gas outlet 112 (here, "above" and "below" refer to their orientation in the installed state). In this embodiment, two air outlets 122 are provided, distributed vertically relative to the gas outlet 112. The air outlets 122 are spaced apart above and below the gas outlet 112, and corresponding parameters such as flow area and outlet angle are adjusted to ensure uniform gas flow from the gas outlet 112 and uniform air flow from the air outlets 122, resulting in a balanced injection volume.

[0045] To further reduce the impact of gas and air rising and to ensure uniform injection, the flow area of ​​the air outlet 122 located above the gas outlet 112 is not less than the flow area of ​​the air outlet 122 located below the gas outlet 112. Preferably, the ratio of the flow area of ​​the air outlet 122 located above the gas outlet 112 to the flow area of ​​the air outlet 122 located below the gas outlet 112 is 1:1 to 2.27:1.

[0046] The flow area of ​​the air inlet 121 of the sub-blowing channel 12 is larger than that of the air outlet 122. The flow area of ​​the sub-blowing channel 12 gradually decreases from the air inlet 121 to the air outlet 122, thereby guiding the air blown in by the blower 3 and accelerating it (the gradual decrease in flow area from the inlet to the outlet makes the sub-blowing channel 12 an acceleration channel shape). Furthermore, the reduced flow area of ​​the air outlet 122 further reduces interference with the natural entrainment of external air. Preferably, the ratio of the flow area of ​​the air outlet 122 to the air inlet 121 is 1:1.4 to 1:1.6.

[0047] Due to the limited installation space within the cooktop, the end face areas of the gas outlet 112 and air outlet 122 on the air intake seat 1 are relatively small, and the air inlet port (not shown) of the injector tube is also small. To ensure that the air outlet 122 is as far away from the gas outlet 112 as possible, reducing the impact on natural gas injection, and to prevent the air ejected from the air outlet 122 from directly impacting the edge of the air inlet port of the injector tube, it is preferable that the airflow direction ejected from the air outlet 122 tends to be towards the horizontal plane where the center of the gas outlet 112 is located (the horizontal plane when the injector system is installed horizontally). In this embodiment, where the air outlets 122 are arranged vertically, the air ejected from the upper air outlet 122 is inclined downwards, while the air ejected from the lower air outlet 122 is inclined upwards. Furthermore, the gas ejected from the gas outlet 122 can also provide a certain kinetic energy to the airflow, thus accelerating it.

[0048] To guide the airflow in the desired direction, the vertical distance between the highest point of the air inlet 121 of the sub-blower duct 12 located above the gas outlet duct 11 and the horizontal plane containing the center of the gas outlet 112 must be greater than the vertical distance between the highest point of the air outlet 122 and the horizontal plane containing the center of the gas outlet 112. Similarly, the vertical distance between the lowest point of the air inlet 121 of the sub-blower duct 12 located below the gas outlet duct 11 and the horizontal plane containing the center of the gas outlet 112 must be greater than the vertical distance between the lowest point of the air outlet 122 and the horizontal plane containing the center of the gas outlet 112.

[0049] Furthermore, in this embodiment, the vertical distance between the lowest point of the air inlet 121 of the sub-blower duct 12 located above the gas outlet duct 11 and the horizontal plane containing the center of the gas outlet 112 is less than the vertical distance between the lowest point of the air outlet 122 and the horizontal plane containing the center of the gas outlet 112, and the inclination of the line connecting the two highest points is greater than the inclination of the line connecting the two lowest points. Similarly, the vertical distance between the highest point of the air inlet 121 of the sub-blower duct 12 located below the gas outlet duct 11 and the horizontal plane containing the center of the gas outlet 112 is less than the vertical distance between the highest point of the air outlet 122 and the horizontal plane containing the center of the gas outlet 112, and the inclination of the line connecting the two lowest points is greater than the inclination of the line connecting the two highest points. This ensures the direction of airflow introduced by the blower.

[0050] Alternatively, the vertical distance between the lowest point of the air inlet 121 of the sub-blower duct 12 located above the gas outlet duct 11 and the horizontal plane where the center of the gas outlet 112 is located can also be greater than or equal to the vertical distance between the lowest point of the air outlet 122 and the horizontal plane where the center of the gas outlet 112 is located; the vertical distance between the highest point of the air inlet 121 of the sub-blower duct 12 located below the gas outlet duct 11 and the horizontal plane where the center of the gas outlet 112 is located can also be greater than or equal to the vertical distance between the highest point of the air outlet 122 and the horizontal plane where the center of the gas outlet 112 is located.

[0051] The blower device 3 includes a housing 31 and a blower 32. The housing 31 is disposed between the air inlet seat 1 and the blower 32. It is hollow inside and open on one side facing the air inlet chamber 13, thus forming an air outlet chamber 311 inside the housing 31. The blower 32 has an air outlet 321, which is in fluid communication with the air outlet chamber 311 of the housing 31. The air outlet 321 is located on the side of the housing 31 opposite to the open part of the air inlet chamber 13. Thus, the air outlet direction of the blower 32 is consistent with the extension direction of the sub-blower channel 12 (gas outlet channel 11, with the air outlet 321 also facing the gas inlet 111 of the gas outlet channel 11). This minimizes the attenuation of air velocity after the air is discharged from the blower 32 through the air outlet chamber 311, the air inlet chamber 13, and the sub-blower channel 12. Compared to the gas supply, nozzle and blower air intake positions described in the background art, the arrangement of the various gas passages, sub-blower passages 12 and blower 32 in this embodiment results in a compact structure and high degree of integration for the air intake seat 1. The air intake seat 1 does not require additional openings for the gas pipe to pass through, and has good sealing performance.

[0052] The ratio of the flow area (cross-sectional area through which gas or air passes) of the gas outlet 112 and air outlet 122 corresponding to each ejector tube varies. Specifically, the ratio of the flow area (cross-sectional area through which gas or air passes) of the gas outlet 112 and air outlet 122 corresponding to the ejector tube of the inner ring is 1:2.5 to 1:8.1, while the ratio of the flow area of ​​the gas outlet 112 and air outlet 122 corresponding to the ejector tube of the outer ring is 1:30 to 1:40. This ensures that the primary air supplied by the blower 3 is sufficient while minimizing the flow area to further reduce the impact on the natural ejection of external air. At the same time, it ensures the air volume and velocity of the primary air supplied by the blower 3 to avoid uneven mixing after mixing with the gas injected from the gas outlet 112.

[0053] Because the outer ring ejector tube has a larger flow rate, the corresponding air volume required is also larger, while the inner ring ejector tube has a smaller flow rate, the corresponding air volume required is also smaller. To avoid the air volume being too large and blowing out the inner ring flame of the burner, the air outlet 321 of the blower 32 is close to the side of the sub-blower channel 12 with a larger flow rate, and the air outlet 321 of the blower 3 is directly opposite the sub-cavity 131 corresponding to the sub-blower channel 12 with a larger flow rate.

[0054] The volume of the air outlet chamber 311 within the outer casing 31 gradually decreases from the side corresponding to the sub-blowing channel 12 with a larger flow rate to the side corresponding to the sub-blowing channel 12 with a smaller flow rate (the pressure decreases the further away from the air outlet 321 of the blower 32), thereby ensuring uniform pressure within the air outlet chamber 311. Preferably, the inner wall surface of the outer casing 31 on the side connected to the air outlet 321 of the blower 32 forms a guide surface 312. The guide surface 312 gradually slopes towards the air inlet chamber 13 from the point connected to the air outlet 321 of the blower 32, moving away from the air outlet 321, i.e., towards the position corresponding to the sub-blowing channel 12 with a smaller flow rate. The slope can be a straight surface or an arc-shaped surface as shown in this embodiment, thereby achieving airflow redirection and smoothly guiding it into the sub-blowing channel 12 with a smaller flow rate.

[0055] The intake chamber 13 is also provided with a dividing section 15, which is located on the wall surface of each sub-chamber 131, as in this embodiment. Figure 3 As shown, the dividing part 15 is located in the middle of the upper and lower sub-cavities 131, and is extended upward and downward by the dividing ribs 14 respectively. The dividing part 15 is located between different groups of sub-blowing channels 12, and guides the airflow entering the air intake cavity 13 to the sub-blowing channels 12.

[0056] In the above embodiment, the dividing rib 14 is arranged horizontally. Alternatively, the dividing rib 14 can also be arranged vertically to divide the air intake chamber 13 left and right. In this case, the extension direction of the sub-blowing channel 12 remains unchanged, while the sub-blowing channels 12 with different flow rates are arranged vertically. The dividing part 15 is still located between the sub-blowing channels 12 with different flow rates to divide the different cavities corresponding to the inner and outer ring ejector tubes.

[0057] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A burner ejector system, comprising: An air intake seat (1) is provided, wherein a gas outlet passage (11) and a blower passage are formed within the air intake seat (1); Blower (3) is used to blow air into the blower channel; Its features are: The air intake seat (1) also forms an air intake chamber (13) that is fluidly connected to the blower (3) and the blower channel respectively. Along the air flow direction, the air intake chamber (13) is located upstream of the blower channel. The air intake seat (1) is also provided with a partition rib (14) for separating the air intake chamber (13). A gas intake channel (141) is formed in the partition rib (14). The gas intake channel (141) is in fluid communication with the gas outlet channel (11) and the external gas source respectively. The blower channel includes at least two sub-blower channels (12) with different flow rates. The partition rib (14) divides the air intake chamber (13) into at least two sub-cavities (131), and each sub-cavity (131) corresponds to at least one sub-blower channel (12).

2. The burner ejector system according to claim 1, characterized in that: The gas inlet channel (141) and the gas outlet channel (11) extend laterally and are perpendicular to each other. The gas outlet channel (11) and the blower channel extend in the same direction. The gas outlet channel (11) faces the gas inlet (111). The blower device (3) includes a blower (32). The blower (32) has an air outlet (321). The air outlet (321) faces the gas inlet (111) of the gas outlet channel (11), so that the air outlet direction of the blower (32) is consistent with the extension direction of the gas outlet channel (11).

3. The burner ejector system according to claim 1, characterized in that: The blower device (3) includes a blower (32) having an air outlet (321). The blower device (3) also includes a hollow outer shell (31) that is in fluid communication with the air inlet chamber (13). The outer shell (31) is disposed between the air inlet seat (1) and the blower (32). An air outlet chamber (311) is formed inside the outer shell (31). The air outlet (321) of the blower (32) is disposed on the side of the outer shell (31) away from the air inlet chamber (13) and is in fluid communication with the air outlet chamber (311).

4. The burner ejector system according to claim 3, characterized in that: The blower channel includes at least two sub-blower channels (12) with different flow rates, and the air outlet (321) is opposite to the sub-blower channel (12) with the larger flow rate.

5. The burner ejector system according to claim 4, characterized in that: The volume of the air outlet chamber (311) inside the outer shell (31) gradually decreases from the side corresponding to the sub-blowing channel (12) with a larger flow rate to the side corresponding to the sub-blowing channel (12) with a smaller flow rate.

6. The burner ejector system according to claim 5, characterized in that: The inner wall of the outer casing (31) connected to the air outlet (321) of the blower (32) forms a guide surface (312). The guide surface (312) gradually slopes from the point connected to the air outlet (321) of the blower (32) towards the position corresponding to the sub-blowing channel (12) with a smaller flow rate, and approaches the air inlet chamber (13).

7. The burner ejector system according to claim 1, characterized in that: The dividing ribs (14) are arranged horizontally to divide the air intake chamber (13) into sub-cavities (131) arranged vertically. There are at least two sub-blowing channels (12), each sub-blowing channel (12) has an air outlet (122), so that there are at least two air outlets (122). The gas outlet channel (11) has a gas outlet (112), and at least one air outlet (122) is provided above and below the gas outlet (112).

8. The burner ejector system according to claim 7, characterized in that: The flow area of ​​the air outlet (122) located above the gas flow outlet (112) is not less than the flow area of ​​the air outlet (122) located below the gas flow outlet (112).

9. The burner ejector system according to any one of claims 1, 4 to 8, characterized in that: The air intake chamber (13) is also provided with a dividing part (15) for guiding the air in the air intake chamber (13) to the sub-blowing channel (12), and the dividing part (15) is located between sub-blowing channels (12) with different flow rates.

10. A gas stove, characterized in that: The application uses a burner ejector system as described in any one of claims 1 to 9.

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