Combustor module

Abstract

The utility model discloses a combustor module. The combustor module comprises a gas mixing box, a combustion chamber and a temperature sensing piece. The opposite sides of the gas mixing box are connected with a draught fan and a gas inlet pipeline correspondingly, the gas inlet pipeline conveys gas into the gas mixing box, and the draught fan brings air into the gas mixing box. The combustion chamber communicates with the interior of the gas mixing box, and fuel gas is combusted in the combustion chamber. The temperature sensing piece is arranged on the outlet side of the combustion chamber; wherein the draught fan further cools blown gas in the gas mixing box so as to cool flue gas in the combustion chamber, the temperature sensing part is electrically connected with the draught fan, the draught fan comprises a control module, and the control module adjusts the rotating speed of the draught fan according to the sensed temperature. According to the combustor module, the temperature sensing piece senses the temperature of the outlet side of the combustion chamber, the rotating speed of the fan is adjusted according to the sensed temperature, so that the temperature of smoke is in a proper range, food materials are not prone to being burnt and can be normally baked, and the influence on key parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a burner module. Background Art

[0002] At present, most ovens of integrated stoves, combined stoves or integrated cooking centers in China adopt the form of electric heating such as metal pipes, quartz pipes or graphene pipes. Limited by electrical safety, the overall power of such ovens generally does not exceed 3000W, which leads to problems such as long preheating time and slow cooking speed during the process of baking food materials, affecting the appearance and taste of the food materials and the user experience of consumers.

[0003] If high-temperature flue gas generated by gas combustion is used as a heating source, it can break through the limitation of electrical safety and maximize the power, which can refer to ≤5.23kW of the household gas cooker standard; in addition, since the heat generated by gas combustion is rapid, its preheating and cooking speeds will be greatly improved. Fully premixed combustion has the characteristics of complete combustion and less pollutant emissions, but the flue gas temperature generated by it is relatively high, usually greater than 1200°C and is not easy to control. Such high-temperature flue gas has the risks of the food materials being easily burned and the temperature of key components rising. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a burner module, in which a temperature sensing element senses the temperature on the outlet side of the combustion chamber, and adjusts the rotation speed of the fan according to the sensed temperature, so that the temperature of the flue gas is in a suitable range, the food materials are not easily burned and can be baked normally, and the influence on key components is reduced.

[0005] The burner module according to an embodiment of the utility model includes: a gas mixing box, a combustion chamber and a temperature sensing element. Opposite sides of the gas mixing box are respectively connected with a fan and a gas inlet pipeline. The gas inlet pipeline conveys gas into the gas mixing box, and the fan brings air into the gas mixing box; the combustion chamber is internally communicated with the gas mixing box and the gas burns in the combustion chamber; the temperature sensing element is arranged on the outlet side of the combustion chamber; wherein, the fan also blows air into the gas mixing box to cool down the flue gas in the combustion chamber, the temperature sensing element is electrically connected with the fan, and the fan includes a control module, and the control module adjusts the rotation speed of the fan according to the sensed temperature.

[0006] In the burner module according to an embodiment of the present utility model, a temperature sensing element senses the temperature on the outlet side of the combustion chamber. When the flue gas temperature is relatively high, the temperature sensing element feeds back a signal to the blower, and the control module of the blower controls the rotational speed of the blower to increase in order to reduce the flue gas temperature. When the flue gas temperature is relatively low, the rotational speed of the blower is controlled to decrease so that the temperature of the flue gas is relatively high, thereby adjusting the temperature of the flue gas within a suitable range, making it difficult for the food ingredients to be burnt and enabling normal baking, and reducing the impact on key components.

[0007] The burner module according to an embodiment of the present utility model further includes a gas distribution plate, and the gas distribution plate is connected between the gas mixing box and the combustion chamber; the gas distribution plate includes a plate body and a first flow equalizing plate. The first flow equalizing plate is provided on the plate body, and the plate body is provided with a diversion groove. The first flow equalizing plate is provided with a plurality of diversion holes. The diversion groove is communicated with the gas mixing box and communicated with a plurality of the diversion holes, and a plurality of the diversion holes are communicated with the combustion chamber.

[0008] In the burner module according to an embodiment of the present utility model, a plurality of the diversion holes include middle diversion holes, and the middle diversion holes are located in the middle area of the first flow equalizing plate; a communication hole is further provided in the middle of the plate body. The diversion groove includes a middle diversion groove located in the middle of the plate body. The middle diversion groove is provided with a notch, and the notch faces the communication hole. The communication hole is communicated with the gas mixing box and is directly opposite to the middle area of the first flow equalizing plate, and the communication hole is communicated with the middle diversion holes.

[0009] In the burner module according to an embodiment of the present utility model, the middle diversion holes are in multiple groups, and each group of the middle diversion holes is multiple. A plurality of the middle diversion holes are evenly distributed in the middle area of the first flow equalizing plate.

[0010] In the burner module according to an embodiment of the present utility model, the temperature sensing element is arranged on the outlet side of the combustion chamber and is opposite to the middle area of the combustion chamber and the middle area of the first flow equalizing plate.

[0011] In the burner module according to an embodiment of the present utility model, the diversion groove further includes multiple groups of side diversion grooves located on both sides of the middle diversion groove, and a plurality of the diversion holes further include multiple groups of side diversion holes located on both sides of the middle diversion holes. Each group of the side diversion holes is multiple, and multiple groups of the side diversion holes correspond to multiple groups of the side diversion grooves one by one.

[0012] In the burner module according to an embodiment of the present utility model, the aperture diameters of multiple groups of the side diversion holes gradually become smaller from the side close to the communication hole to the side far from the communication hole.

[0013] For the burner module according to an embodiment of the present utility model, each of the side flow guide grooves includes two sub-grooves oppositely distributed in a first direction. One of the sub-grooves in each group of the side flow guide grooves is formed by two first protrusions arranged at intervals, and the other sub-groove is formed by two second protrusions arranged at intervals. The distance between the first protrusion and the second protrusion close to the communication hole is greater than the distance between the first protrusion and the second protrusion far from the communication hole.

[0014] For the burner module according to an embodiment of the present utility model, the combustion chamber further includes a second flow equalizing plate, and the second flow equalizing plate is provided with a plurality of uniformly distributed flow equalizing holes, and the flow equalizing holes are communicated with the flow guide holes.

[0015] For the burner module according to an embodiment of the present utility model, the second flow equalizing plate is covered with a wire mesh.

[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a side view of the burner module according to an embodiment of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the disk body of the gas distribution plate of the burner module according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic connection structure diagram of the gas distribution plate and the gas mixing box of the burner module according to an embodiment of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the second flow equalizing plate in the combustion chamber of the burner module according to an embodiment of the present utility model.

[0022] Reference Signs:

[0023] Burner module 100,

[0024] Gas mixing box 1, blower 2, gas inlet pipeline 3, gas distribution plate 4, disk body 41, side flow guide groove 411, sub-groove 4111, first protrusion 412, middle flow guide groove 413, second protrusion 414, communication hole 415, first flow equalizing plate 42, flow guide hole 421, middle flow guide hole 4211, side flow guide hole 4212, first area 43, second area 44, combustion chamber 5, second flow equalizing plate 51, flow equalizing hole 511, temperature sensing element 6, ignition needle 7. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Reference below Figures 1-4 Describe the burner module 100 according to the embodiment of the utility model. The temperature sensing component 6 senses the temperature on the outlet side of the combustion chamber 5. When the flue gas temperature is too high, the temperature sensing component 6 feeds back a signal to the fan 2. The control module of the fan 2 controls the speed of the fan 2 to increase so as to reduce the flue gas temperature. When the flue gas temperature is too low, the speed of the fan 2 is controlled to decrease so as to reduce the cooling effect on the flue gas and make the temperature relatively high, thereby adjusting the temperature of the flue gas within a suitable range, making it difficult for the food to be burnt and able to be baked normally, and reducing the impact on key components.

[0027] like Figures 1-4 As shown, the burner module 100 of the embodiment of the utility model includes: a gas mixing box 1, a combustion chamber 5 and a temperature sensing component 6.

[0028] Among them, the opposite sides of the mixing box 1 are respectively connected with a fan 2 and a gas intake pipe 3, the gas intake pipe 3 transports the gas into the mixing box 1, and the fan 2 brings air into the mixing box 1; the combustion chamber 5 is connected to the interior of the mixing box 1 and the gas burns in the combustion chamber 5; the temperature sensing component 6 is arranged on the outlet side of the combustion chamber 5; the fan 2 also blows air to cool the mixing box 1 to cool the flue gas in the combustion chamber 5, the temperature sensing component 6 is electrically connected to the fan 2, and the fan 2 includes a control module, and the control module adjusts the speed of the fan 2 according to the sensed temperature.

[0029] In practice, the burner module 100 is connected to the heat exchange module, and the heat exchange module is provided with a heat exchange pipeline. After the gas and air enter the burner module 100 and burn to form flue gas, the flue gas enters the heat exchange module through the burner module 100. The heat exchange pipeline of the heat exchange module is provided with a hot water exchanger. The hot water exchanger in the heat exchange pipeline absorbs the heat of the high-temperature flue gas and produces steam. By transporting the steam to the steam oven, the steaming function can be realized; and when the heat exchanger is not provided in the heat exchanger pipeline, the flue gas can be cooled to the condition that the parts of the heat exchanger pipeline are not damaged and then transported to the steam oven to realize the baking function. The embodiment of the utility model mainly cools the flue gas in the combustion chamber 5 to a certain degree and then transports it to the steam oven to realize the baking function.

[0030] First, the gas mixing chamber 1 is a cavity for pre-mixing air and gas. A blower 2 and a gas inlet pipe 3 are respectively provided on two opposite sides of the gas mixing chamber 1. The blower 2 brings air into the gas mixing chamber 1, and gas enters the gas mixing chamber 1 through the gas inlet pipe 3. The blower 2 and the gas inlet pipe 3 are on two opposite sides of the gas mixing chamber 1, that is, air and gas are made to collide head-on, ensuring more uniform mixing of air and gas. After the igniting needle 7 ignites the gas, the gas can burn stably.

[0031] Specifically, when the gas burns in the combustion chamber 5, a large amount of flue gas is generated. In the prior art, when the temperature of the flue gas is greater than 1200 °C, the food is likely to be burnt, and the risk of temperature rise of key components increases. By increasing the air volume of the blower 2 to blow in appropriate cold air to cool the gas in the gas mixing chamber 1, and the cold air is blown into the combustion chamber 5 through the gas mixing chamber 1, thereby cooling the flue gas in the combustion chamber 5, so that the temperature of the flue gas on the outlet side of the combustion chamber 5 can be reduced.

[0032] Furthermore, by providing a temperature sensor 6 on the outlet side of the combustion chamber 5, the temperature sensor 6 senses the temperature of the flue gas on the outlet side of the combustion chamber 5 and transmits a temperature signal to the control module of the blower 2. The control module receives the temperature sensed by the temperature sensor 6 and controls the rotation speed of the blower 2, so that the air volume of the blower 2 is increased. The temperature sensor 6 monitors the temperature on the outlet side of the combustion chamber 5 at any time, so that the control module controls the temperature at about 700 - 800 °C, which can realize normal baking of food and reduce the risk of temperature rise of key components, and at the same time, the baking time of food is not too long. Of course, during actual control, the rotation speed of the blower 2 can be controlled according to different temperature requirements. For example, when the actual required temperature is 800 °C, the rotation speed of the blower 2 is less than that when the actual required temperature is 700 °C.

[0033] Thus, the temperature sensor 6 is electrically connected to the blower 2, and the temperature on the outlet side of the combustion chamber 5 is monitored in real time through the temperature sensor 6, so as to adjust the required flue gas within a suitable temperature range, make the food not easily burnt and can be normally baked, and reduce the impact on key components.

[0034] In some embodiments, the burner module 100 further includes a gas distribution plate 4, and the gas distribution plate 4 is connected between the gas mixing chamber 1 and the combustion chamber 5; the gas distribution plate 4 includes a plate body 41 and a first flow equalizing plate 42. The first flow equalizing plate 42 is provided on the plate body 41, and the plate body 41 is provided with a diversion groove. The first flow equalizing plate 42 is provided with a plurality of diversion holes 421. The diversion groove is communicated with the gas mixing chamber 1 and is communicated with the plurality of diversion holes 421, and the plurality of diversion holes 421 are communicated with the combustion chamber 5.

[0035] In practice, before the mixed gas in the gas mixing box 1 enters the combustion chamber 5, it first enters the gas distribution plate 4. The diversion grooves in the gas distribution plate 4 enable the diversion of the mixed gas, preventing a large amount of dispersion of the airflow of the mixed gas and affecting the uniformity of the airflow. That is to say, before the air and gas enter the gas mixing box 1, the first uniform mixing is achieved through the impact method, and the diversion of the mixed gas is achieved through the diversion grooves of the gas distribution plate 4. Moreover, the mixed gas flows out in a specific direction through the multiple diversion holes 421 on the first flow equalizing plate 42, controlling the outflow direction of the mixed gas and controlling the flow of the mixed gas along different positions below the combustion chamber 5 to the combustion chamber 5, ensuring the uniform and stable combustion of the gas at a suitable position in the combustion chamber 5.

[0036] In some embodiments, the multiple diversion holes 421 include a middle diversion hole 4211, and the middle diversion hole 4211 is located in the middle area of the first flow equalizing plate 42. A communication hole 415 is also provided in the middle of the disk body 41. The diversion groove includes a middle diversion groove 413 located in the middle of the disk body 41. The middle diversion groove 413 is provided with a notch, and the notch faces the communication hole 415. The communication hole 415 communicates with the gas mixing box 1 and is directly opposite to the middle area of the first flow equalizing plate 42, and the communication hole 415 communicates with the middle diversion hole 4211.

[0037] In practice, the middle diversion hole 4211 communicates with the communication hole 415 in the middle of the disk body 41. The mixed gas in the gas mixing box 1 flows out from the communication hole 415 and flows toward both sides of the disk body 41 from the position of the communication hole 415. The middle diversion groove 413 is provided on the outside of the communication hole 415 of the disk body 41, enabling part of the mixed gas flowing out of the communication hole 415 to be gathered around the communication hole 415 by the middle diversion groove 413 and flowing out along the middle area of the first flow equalizing plate 42, while part of the mixed gas continues to flow toward both sides of the communication hole 415, thus avoiding a large amount of the mixed gas flowing toward both sides of the communication hole 415 after flowing out of the communication hole 415.

[0038] Therefore, by providing the middle diversion groove 413 in the middle area of the disk body 41, part of the mixed gas can flow along the middle area of the first flow equalizing plate 42 to the combustion chamber 5, avoiding the mixed gas in the middle area flowing toward both sides of the communication hole 415 under the blowing pressure of the blower 2. That is to say, it ensures that the mixed gas can flow through the first flow equalizing plate 42 along different positions of the disk body 41 and flow to different positions of the combustion chamber 5 through the first flow equalizing plate 42, ensuring the stability of combustion. If the cross-sections of the combustion chamber 5 and the gas distribution plate 4 are both rectangular, similarly, the first flow equalizing plate 42 is also rectangular, and the mixed gas can flow to the combustion chamber 5 along different positions of the rectangle of the gas distribution plate 4, enabling the mixed gas entering from the bottom of the combustion chamber 5 to be properly distributed along the rectangular position and ensuring the uniformity of combustion.

[0039] In some embodiments, there are multiple groups of middle diversion holes 4211, and each group has multiple middle diversion holes 4211. The multiple middle diversion holes 4211 are evenly distributed in the middle region of the first flow equalizing plate 42.

[0040] Among them, the multiple groups of middle diversion holes 4211 are evenly distributed in the middle region of the first flow equalizing plate 42, which can further equalize the mixed gas flowing out of the communication holes 415 in the middle region of the first flow equalizing plate 42, ensure that the mixed gas flowing out of the middle region of the first flow equalizing plate 42 is more uniform, and thus enable the mixed gas to burn evenly and stably in the combustion chamber 5.

[0041] In some embodiments, the temperature sensing element 6 is arranged on the outlet side of the combustion chamber 5 and is opposite to the middle region of the combustion chamber 5 and the middle region of the first flow equalizing plate 42.

[0042] In practice, the temperature sensing element 6 is opposite to the middle region of the combustion chamber 5, that is, opposite to the middle region of the first flow equalizing plate 42. The middle region of the first flow equalizing plate 42 is opposite to the communication holes 415 of the disk body 41, and multiple evenly distributed middle diversion holes 4211 are provided in the middle region of the first flow equalizing plate 42. That is, the mixed gas flowing out of the communication holes 415 flows evenly into the combustion chamber 5 along the middle region of the first flow equalizing plate 42, and the flue gas from the combustion of the gas can be evenly distributed in the middle region of the combustion chamber 5. Then, arranging the temperature sensing element 6 in the middle region of the outlet side of the combustion chamber 5 can improve the accuracy of the temperature sensing element 6 in measuring the flue gas temperature, and thus more precisely control the rotational speed of the fan 2 to control the required temperature within a suitable range.

[0043] In some embodiments, the diversion grooves further include multiple groups of side diversion grooves 411 located on both sides of the middle diversion groove 413, and the multiple diversion holes 421 further include multiple groups of side diversion holes 4212 located on both sides of the middle diversion holes 4211. Each group of side diversion holes 4212 has multiple holes, and the multiple groups of side diversion holes 4212 correspond to the multiple groups of side diversion grooves 411 one by one.

[0044] Among them, the side diversion grooves 411 can enable the mixed gas to enter the disk body 41 along the communication holes 415 and be split through the multiple groups of side diversion grooves 411. Thus, the mixed gas split by the multiple side diversion grooves 411 can directly flow out along the multiple groups of side diversion holes 4212. That is, the mixed gas can flow towards the combustion chamber 5 along both the middle region and the two sides of the first flow equalizing plate 42, and the side diversion grooves 411 can control the flow rate of the mixed gas flowing into the combustion chamber 5 at both sides of the communication holes 415. That is, the mixed gas is properly guided to different positions of the disk body 41, and thus flows out through different positions of the first flow equalizing plate 42, so that the mixed gas exists at each position of the entire combustion chamber 5, enabling the gas to be evenly distributed in the combustion chamber 5 and making the mixed gas burn more stably and fully.

[0045] In addition, referring toFigure 3 As shown, each group of side flow guiding holes 4212 has multiple holes, and the aperture sizes of the multiple side flow guiding holes 4212 in each group of side flow guiding holes 4212 are the same. That is, the mixed gas discharged through the side flow guiding groove 411 can be further evenly flowed through each group of side flow guiding holes 4212, improving the uniformity of the mixed gas at the corresponding side flow guiding groove 411, providing a basis for the uniform combustion of the gas in the combustion chamber 5. Thus, through the cooperation of the side flow guiding groove 411 and the side flow guiding holes 4212, as well as the cooperation of the middle flow guiding groove 413 and the middle flow guiding holes 4211, the flue gas around the temperature sensing element 6 is made more uniform, thereby improving the accuracy of the flue gas temperature sensed by the temperature sensing element 6.

[0046] In some embodiments, the aperture sizes of multiple groups of side flow guiding holes 4212 gradually decrease from the side close to the communication hole 415 to the side far from the communication hole 415.

[0047] In practice, after the mixed gas flows to the gas distribution plate 4, it has a tendency to flow towards both sides of the communication hole 415. The aperture of the side flow guiding hole 4212 close to the communication hole 415 is set larger, and the aperture of the side flow guiding hole 4212 far from the communication hole 415 is set smaller, showing a gradually decreasing trend. That is, when the mixed gas flows out along the communication hole 415, it prevents a large amount of the mixed gas from flowing from the communication hole 415 to both sides and flowing out in large quantities along the side flow guiding holes 4212 on both sides. Thus, the side flow guiding holes 4212 in the area far from the middle of the first flow equalizing plate 42 are set smaller, while the side flow guiding holes 4212 close to the middle area of the first flow equalizing plate 42 are set larger, which is equivalent to making the mixed gas flow more evenly. And through simulation, it is found that such a structure can improve the uniformity of the flow of the mixed gas.

[0048] In some embodiments, each group of side flow guiding grooves 411 includes two sub-grooves 4111 distributed oppositely along the first direction. One of the sub-grooves 4111 in each group of side flow guiding grooves 411 is formed by two first protrusions 412 arranged at intervals, and the other sub-groove 4111 is formed by two second protrusions 414 arranged at intervals. The distance between the first protrusion 412 and the second protrusion 414 close to the communication hole 415 is greater than the distance between the first protrusion 412 and the second protrusion 414 far from the communication hole 415.

[0049] Specifically, when the distance between the first protrusion 412 and the second protrusion 414 near the position of the communication hole 415 is large, that is, the mixture gas near the communication hole 415 can flow more smoothly. During the process of the mixture gas flowing from the middle area of the gas distribution plate 4 to both sides, the distance between the two sub-grooves 4111 far from the communication hole 415 is small. It is equivalent that the first protrusion 412 and the second protrusion 414 at the position far from the communication hole 415 can have a certain blocking effect on the mixture gas, reducing the large amount of continuous flow of the mixture gas towards both sides, so as to keep the appropriate distribution of the mixture gas in the middle area near the disk body 41 and the middle area far from the disk body 41.

[0050] Refer to Figure 2 As shown, one side of the disk body 41 at the communication hole 415 includes a first area 43 and a second area 44. The side flow guide grooves 411 in the first area 43 are of equal size, and the side flow guide grooves 411 in the second area 44 are of equal size. The distance between the first protrusion 412 and the second protrusion 414 of the side flow guide groove 411 in the first area 43 is greater than the distance between the first protrusion 412 and the second protrusion 414 of the side flow guide groove 411 in the second area 44, and the first area 43 is arranged close to the communication hole 415. That is, the mixture gas can reach the first area 43 more smoothly after passing through the communication hole 415. And the mixture gas flows through the side flow guide groove 411 in the first area 43 to the corresponding side flow guide hole 4212 of the first flow equalizing plate 42, and also flows through the side flow guide groove 411 in the second area 44 to the corresponding side flow guide hole 4212 of the first flow equalizing plate 42.

[0051] In addition, the distance between two adjacent first protrusions 412 in the first area 43 is greater than the distance between two adjacent first protrusions 412 in the second area 44. Similarly, the distance between two adjacent second protrusions 414 in the first area 43 is greater than the distance between two adjacent second protrusions 414 in the second area 44. When the mixture gas flows towards both sides along the position of the communication hole 415, the flow resistance towards the side flow guide groove 411 in the second area 44 is greater than the flow resistance towards the side flow guide groove 411 in the first area 43, so as to prevent the continuous large amount of flow of the mixture gas towards both sides. And combined with the structural design of the first flow equalizing plate 42, through simulation analysis, the mixture gas can be uniformly guided into the combustion chamber 5.

[0052] In some embodiments, the combustion chamber 5 further includes a second flow equalizing plate 51. The second flow equalizing plate 51 is provided with a plurality of uniformly distributed flow equalizing holes 511, and the flow equalizing holes 511 communicate with the flow guide holes 421.

[0053] In practice, the sizes of the flow equalizing holes 511 of the second flow equalizing plate 51 are equal. Except for the positions where the ignition needles 7 are installed, the multiple flow equalizing holes 511 at other positions of the second flow equalizing plate 51 are distributed at equal intervals. That is, on the basis of the uniform gas distribution of the gas distribution plate 4, after the mixed gas flows out of the diversion holes 421 of the gas distribution plate 4, it can continue to flow evenly toward the flow equalizing holes 511 of the second flow equalizing plate 51. The second flow equalizing plate 51 can further make the mixed gas evenly distributed, thereby improving the uniformity and stability of the combustion of the gas in the combustion chamber 5. This is not only beneficial for judging the temperature in the combustion chamber 5 through the temperature sensing element 6, but also enables the flue gas sent into the steam oven to be evenly heated, which is beneficial for improving the baking effect of the food materials.

[0054] In some embodiments, the second flow equalizing plate 51 is covered with a wire mesh.

[0055] Specifically, when the mixed gas flows out of the second flow equalizing plate 51, the mixed gas becomes more uniform and flows toward the wire mesh, so that after the gas is ignited, the flame can be evenly distributed on the surface of the wire mesh, forming a flame surface of fully premixed combustion, which improves the combustion efficiency and reduces the release of harmful gases.

[0056] In addition, the volume of the combustion chamber of the burner module in the embodiment of the present invention is limited within 280*200*50 mm, so that the burner module can be better integrally connected with structures such as the heat exchange module.

[0057] 1. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0058] 2. In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0059] 3. In the description of the present invention, the meaning of "a plurality of" is two or more.

[0060] 4. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features between them.

[0061] 5. In the description of the present utility model, the first feature being "above", "over" or "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0062] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. 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 utility model. In this specification, the schematic expressions 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 a suitable manner in any one or more embodiments or examples.

[0063] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A burner module, comprising: An air mixing box, wherein opposite sides of the air mixing box are respectively connected with a fan and a gas inlet pipeline, the gas inlet pipeline conveys the gas into the air mixing box, and the fan brings air into the air mixing box; A combustion chamber, the combustion chamber is communicated with the interior of the gas mixing box and the gas is burned in the combustion chamber; A temperature sensing component, the temperature sensing component is arranged at the outlet side of the combustion chamber; It is characterized in that the fan also blows air into the mixing box to cool down the flue gas in the combustion chamber, the temperature sensing component is electrically connected to the fan, and the fan includes a control module, and the control module adjusts the speed of the fan according to the sensed temperature.

2. The burner module according to claim 1, characterized in that It also includes a gas distribution plate, which is connected between the gas mixing box and the combustion chamber; The gas distribution plate includes a plate body and a first flow equalizing plate, the plate body is provided with the first flow equalizing plate, and the plate body is provided with a guide groove, the first flow equalizing plate is provided with a plurality of guide holes, the guide groove is connected to the mixing box and to the plurality of the guide holes, and the plurality of the guide holes are connected to the combustion chamber.

3. The burner module according to claim 2, characterized in that The plurality of flow guide holes include a middle flow guide hole, and the middle flow guide hole is located in the middle area of ​​the first flow equalizing plate; A connecting hole is also provided in the middle of the disk body, and the guide groove includes a middle guide groove located in the middle of the disk body, the middle guide groove is provided with a notch, and the notch faces the connecting hole, the connecting hole is connected to the mixing box and is opposite to the middle area of ​​the first equalizing plate, and the connecting hole is connected to the middle guide hole.

4. The burner module according to claim 3, characterized in that The central flow guide holes are multiple groups, each group has multiple central flow guide holes, and the multiple central flow guide holes are evenly distributed in the central area of ​​the first flow equalizing plate.

5. The burner module according to claim 4, characterized in that The temperature sensing component is arranged at the outlet side of the combustion chamber and is opposite to the middle area of ​​the combustion chamber and the middle area of ​​the first flow equalizing plate.

6. The burner module according to claim 3, characterized in that The guide groove also includes multiple groups of side guide grooves located on both sides of the central guide groove, and the multiple guide holes also include multiple groups of side guide holes located on both sides of the central guide hole. Each group of side guide holes has multiple groups, and the multiple groups of side guide holes correspond one-to-one to the multiple groups of side guide grooves.

7. The burner module according to claim 6, characterized in that The apertures of the plurality of groups of side guide holes gradually decrease from being close to the connecting hole to being far away from the connecting hole.

8. The burner module according to claim 6, characterized in that Each group of the side guide grooves includes two sub-grooves relatively distributed along a first direction, one of the sub-grooves in each group of the side guide grooves is formed by two first protrusions arranged at intervals, and the other sub-groove is formed by two second protrusions arranged at intervals, and the distance between the first protrusion and the second protrusion close to the connecting hole is greater than the distance between the first protrusion and the second protrusion away from the connecting hole.

9. The burner module according to claim 2, characterized in that: The combustion chamber further comprises a second flow balancing plate, wherein the second flow balancing plate is provided with a plurality of evenly distributed flow balancing holes, and the flow balancing holes are connected to the flow guide holes.

10. The burner module according to claim 9, characterized in that The second current balancing plate is covered with a metal wire mesh.

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