Gas steaming and baking system

Abstract

The utility model discloses a fuel gas steaming and baking system which comprises a combustion module, a heat exchange module and a cooling module, a combustion cavity is formed in the combustion module, and the combustion cavity is provided with a smoke outlet; a heat exchange cavity is formed in the heat exchange module and is provided with a heat exchange pipeline; a cooling cavity is formed in the cooling module, smoke at the smoke outlet is suitable for flowing to the heat exchange cavity after passing through the cooling cavity, the cooling module comprises a cooling fan, the cooling fan is used for driving cooling airflow to cool the smoke flowing through the cooling cavity, and a flow guide plate is further arranged in the cooling cavity; the included angle between the guide plate and the flowing direction of the flue gas is smaller than the included angle between the guide plate and the flowing direction of the cooling airflow. According to the fuel gas steaming and baking system, after the cooling airflow and the flue gas are guided by the guide plate, the flue gas is uniformly cooled by the cooling airflow, and a heat exchange pipeline of the heat exchange module is prevented from being damaged due to the fact that the local temperature of the flue gas is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a gas steaming and baking system. Background Art

[0002] If a gas steaming and baking system only uses one burner to achieve steaming and baking simultaneously, since there is no water flowing through the heat exchanger during the baking function, in order to avoid dry burning of the heat exchanger, a cooling chamber needs to be provided between the burner and the heat exchanger, and cooling air is used to reduce the temperature of the high-temperature flue gas.

[0003] In the prior art, the cold air and the high-temperature flue gas are not evenly mixed, resulting in too high local temperature of the flue gas and damaging the heat exchanger. 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 gas steaming and baking system. After the flow guide plate guides the cooling air flow and the flue gas, the cooling air flow and the flue gas are more evenly mixed, so that the cooling air flow evenly cools the flue gas, preventing the local temperature of the flue gas from being too high and damaging the heat exchange pipeline of the heat exchange module.

[0005] The gas steaming and baking system according to an embodiment of the utility model includes: a combustion module, a combustion chamber is formed in the combustion module, and the combustion chamber has a smoke outlet; a heat exchange module, a heat exchange chamber is formed in the heat exchange module, and the heat exchange chamber is provided with a heat exchange pipeline; a cooling module, a cooling chamber is formed in the cooling module, and the flue gas at the smoke outlet is adapted to flow through the cooling chamber and then flow to the heat exchange chamber. The cooling module includes a cooling fan, and the cooling fan is used to drive the cooling air flow to cool the flue gas flowing through the cooling chamber. A flow guide plate is further arranged in the cooling chamber, and the included angle between the flow guide plate and the flow direction of the flue gas is smaller than the included angle between the flow guide plate and the flow direction of the cooling air flow.

[0006] In the gas steam system according to an embodiment of the utility model, a cooling module is arranged between the combustion module and the heat exchange module. The cooling fan of the cooling module cools the flue gas generated in the combustion module, and the cooling air flow is guided by the flow guide plate, so that the cooling air flow and the flue gas are evenly mixed to evenly cool the flue gas, preventing the local temperature of the flue gas from being too high and damaging the heat exchange pipeline of the heat exchange module.

[0007] In the gas steaming and baking system according to an embodiment of the utility model, the cooling chamber has an air flow inlet penetrating along a first direction and a flue gas inlet and a flue gas outlet distributed along a second direction. The first direction is perpendicular to the second direction, and the flow guide plate is perpendicular to the first direction and parallel to the second direction.

[0008] According to the gas steaming and baking system of the embodiment of the present utility model, there are two flow guiding plates, which respectively include a first flow guiding plate and a second flow guiding plate, and the first flow guiding plate and the second flow guiding plate are spaced apart along the first direction.

[0009] According to the gas steaming and baking system of the embodiment of the present utility model, the cooling chamber includes a flue gas inlet end and a flue gas outlet end along the second direction. One end of the first flow guiding plate is close to the flue gas inlet end and has a distance from the flue gas outlet end, and one end of the second flow guiding plate is close to the flue gas outlet end and has a distance from the flue gas inlet end.

[0010] According to the gas steaming and baking system of the embodiment of the present utility model, the projections of the ends of the first flow guiding plate and the second flow guiding plate on the first direction partially overlap.

[0011] According to the gas steaming and baking system of the embodiment of the present utility model, the extension heights of the first flow guiding plate and the second flow guiding plate along the second direction are equal.

[0012] According to the gas steaming and baking system of the embodiment of the present utility model, the cooling module includes a first panel and a second panel oppositely arranged along the third direction. The third direction is perpendicular to the first direction and perpendicular to the second direction. Two ends of the first flow guiding plate along the third direction are connected to the first panel and the second panel, and two ends of the second flow guiding plate along the third direction are connected to the first panel and the second panel.

[0013] According to the gas steaming and baking system of the embodiment of the present utility model, the cooling module includes a third panel and a fourth panel arranged along the first direction. The third panel, the fourth panel, the first panel and the second panel enclose the cooling chamber, and the air flow inlet is arranged at the middle position of the third panel or the fourth panel.

[0014] According to the gas steaming and baking system of the embodiment of the present utility model, the distance between the first flow guiding plate and the cooling fan is less than the distance between the first flow guiding plate and the second flow guiding plate.

[0015] According to the gas steaming and baking system of the embodiment of the present utility model, the combustion module includes an intake air fan, a gas mixing box and a gas intake pipeline, and the intake air fan and the gas intake pipeline are located on two opposite sides of the gas mixing box.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part 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 apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a schematic structural diagram of a gas steaming and baking system according to an embodiment of the present utility model;

[0019] Figure 2 is a schematic cross-sectional view of a cooling chamber according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic structural diagram of a cooling chamber according to an embodiment of the present utility model;

[0021] Figure 4 is a top view of a cooling chamber according to an embodiment of the present utility model.

[0022] Reference numerals:

[0023] Gas steaming and baking system 100,

[0024] Gas mixing box 1, gas inlet pipeline 2, intake air fan 3, combustion module 4, cooling module 5, cooling chamber 51, first guide plate 511, second guide plate 512, installation part 52, air flow inlet 521, first panel 53, second panel 54, third panel 55, fourth panel 56, heat exchange module 6, ignition needle 7, cooling fan 8. Detailed description of the specific embodiment

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0026] Reference is made below to Figures 1 - 4 Describe a gas steaming and baking system 100 according to an embodiment of the present utility model. A guide plate is provided in the cooling module 5, and the relationship between the guide plate and the cooling air flow direction and the flue gas flow direction is defined, so that after the guide plate guides the cooling air flow and the flue gas, the flue gas and the cooling air flow are mixed more evenly, thereby achieving uniform cooling of the flue gas. When the flue gas enters the steam oven, the food can be baked evenly, and at the same time, it is prevented that the local temperature of the flue gas is too high to damage the heat exchange pipeline of the heat exchange module 4.

[0027] As Figures 1 - 4 shown, the gas steaming and baking system 100 according to an embodiment of the present utility model includes: a combustion module 4, a heat exchange module 6 and a cooling module 5.

[0028] Among them, a combustion chamber is formed in the combustion module 4, and the combustion chamber has a smoke outlet; a heat exchange chamber is formed in the heat exchange module 6, and the heat exchange chamber is provided with a heat exchange pipeline; a cooling chamber 51 is formed in the cooling module 5, and the flue gas at the smoke outlet of the combustion chamber is suitable for flowing to the heat exchange chamber after passing through the cooling chamber 51. The cooling module 5 includes a cooling fan 8, and the cooling fan 8 is used to drive the cooling airflow to cool the flue gas flowing through the cooling chamber 51. A guide plate is also provided in the cooling chamber 51, and the angle between the guide plate and the flow direction of the flue gas is smaller than the angle between the guide plate and the flow direction of the cooling airflow.

[0029] In practice, the heat exchange module 6 is provided with a heat exchange pipeline. After the gas and air enter the combustion module 4 for combustion, the smoke generated by the combustion enters the cooling module 5 from the combustion module 4 and then enters the heat exchange module 6. A hot water exchange pipe is provided in the heat exchange pipe of the heat exchange module 6. The hot water exchange pipe absorbs the heat of the high-temperature smoke and produces steam. The steaming function can be realized by transporting the steam to the steam oven. While realizing the steaming function, the cooling fan 8 of the cooling module 5 runs at a low speed, which can not only provide the air required for combustion, but also form a positive pressure to prevent the high-temperature smoke from flowing into the cooling fan 8 and damaging the cooling fan 8 itself. When the steam oven wants to realize the baking function, there is no hot water exchange pipe in the heat exchange pipe. The cooling fan 8 of the cooling module 5 can cool the smoke and prevent the smoke from damaging the parts of the heat exchange pipe. At the same time, after the cooled smoke is transported to the steam oven, the food is evenly baked to prevent the food from being scorched.

[0030] During the process of the cooling fan 8 blowing air toward the cooling chamber 51, that is, cooling the external air and then bringing it into the cooling chamber 51, due to the action of the cooling fan 8, the cooling airflow will blow in the direction away from the cooling fan 8 in the cooling chamber 51, resulting in uneven flow of the cooling airflow in the cooling chamber 51. By arranging a guide plate in the cooling chamber 51, the guide plate can block a part of the cooling airflow to prevent a large amount of cooling airflow from moving in the direction away from the cooling fan 8. At the same time, when the flue gas passes through the cooling chamber 51 and flows toward the heat exchange module 6, the flue gas can also be diverted by the guide plate, so that the cooling airflow can evenly cool the flue gas, thereby improving the uniformity of the flue gas temperature and thus improving the baking effect of the food.

[0031] Furthermore, the angle between the guide plate and the flow direction of the flue gas is smaller than the angle between the guide plate and the flow direction of the cooling airflow, that is, the flue gas and the cooling airflow flow in different directions along the guide plate, and the guide plate can divert the cooling airflow as well as the flue gas at the same time, so that the flue gas and the cooling airflow can be mixed more evenly.

[0032] Accordingly, in the gas steam roasting system 100 of the embodiment of the present utility model, a flow guide plate is provided in the cooling module 5, and the relationship between the flow guide plate and the flow direction of the cooling air flow and the flow direction of the flue gas is defined. After the flow guide plate guides the cooling air flow and the flue gas, the flue gas and the cooling air flow are mixed more evenly, so as to achieve uniform cooling of the flue gas by the cooling air flow and prevent the local temperature of the flue gas from being too high to damage the heat exchange pipeline of the heat exchange module.

[0033] In some embodiments, the cooling chamber 51 has an air inlet 521 penetrating along a first direction and a flue gas inlet and a flue gas outlet distributed along a second direction. The first direction is perpendicular to the second direction, and the flow guide plate is perpendicular to the first direction and parallel to the second direction.

[0034] In practice, that is, the cooling fan 8 drives the cooling air flow to flow along the first direction, while the flue gas of the combustion module 4 flows along the second direction to the cooling module 5 and the heat exchange module 6. When the flow guide plate is perpendicular to the first direction, that is, when the cooling air flow of the cooling fan 8 flows along the first direction, the flow guide plate can block a part of the cooling air flow, and the other part of the cooling air flow continues to flow away from the cooling fan 8. At the same time, the flow guide plate can separate a part of the cooling chamber 51. When the flue gas flows, the flue gas flows in both the direction close to the cooling fan 8 and the direction far from the cooling fan 8, so that the part of the cooling air flow blocked by the flow guide plate and the part of the flue gas can be evenly mixed.

[0035] Refer to Figure 1 and Figure 2 As shown, the cooling chamber 51 is a cuboid cavity, and a cooling fan 8 is provided at one end of the cooling chamber 51. The flow guide plate is located in the cuboid cavity and is perpendicular to the first direction. At this time, a part of the cuboid cavity is separated by the flow guide plate along the first direction, so that part of the cooling air flow is blocked on the side close to the cooling fan 8 under the action of the flow guide plate, and the other part of the cooling air flow continues to flow towards the right side of the cuboid cavity; at the same time, the flue gas flows along the second direction, part of the flue gas is on one side of the flow guide plate and is guided to a position close to the cooling fan 8, and the other part of the flue gas is guided by the flow guide plate to the other side of the flow guide plate. It is equivalent to that the flue gas distributed along the first direction of the cuboid cavity and the cooling air flow distributed along the first direction can be evenly mixed, improving the uniformity of the cooling of the flue gas by the cooling air flow.

[0036] In some embodiments, there are two flow guide plates, which respectively include a first flow guide plate 511 and a second flow guide plate 512, and the first flow guide plate 511 and the second flow guide plate 512 are spaced apart along the first direction.

[0037] Among them, by setting the first deflector 511 and the second deflector 512, part of the cooling air flow can be deflected to the side close to the cooling fan 8, part of the cooling air flow is deflected between the first deflector 511 and the second deflector 512, and part of the cooling air flow is away from the cooling fan 8, so as to prevent a large amount of cooling air flow from being blown to a position away from the cooling fan 8 under the blowing of the cooling fan 8 and maintain the uniformity of the cooling air flow. In addition, by setting the first deflector 511 and the second deflector 512, the cooling air flow can be better divided while ensuring the smooth flow of the cooling air flow.

[0038] In some embodiments, the cooling chamber 51 includes a flue gas inlet end and a flue gas outlet end along the second direction. One end of the first deflector 511 is close to the flue gas inlet end and has a distance from the flue gas outlet end, and one end of the second deflector 512 is close to the flue gas outlet end and has a distance from the flue gas inlet end.

[0039] Specifically, the flue gas inlet end of the cooling chamber 51 is communicated with the flue gas outlet of the combustion module 4, and the flue gas outlet end of the cooling chamber 51 is communicated with the heat exchange module 6. By arranging the first deflector 511 near the flue gas inlet end of the cooling chamber 51 and the second deflector 512 near the flue gas outlet end of the cooling chamber 51, the two first deflectors 511 and the second deflector 512 can be staggered along the second direction to realize the guiding effect of the two deflectors on the cooling air flow, and at the same time, it does not prevent the normal flow of the cooling air flow.

[0040] As Figure 2 shown, when part of the cooling air flow flows along the first direction, it is blocked by the first deflector 511 and the cooling air flow gathers at a position close to the cooling fan 8. Part of the cooling air flow can continue to flow between the first deflector 511 and the flue gas outlet end and flow to the space between the first deflector 511 and the second deflector 512. Subsequently, the cooling air flow continues to flow between the second deflector 512 and the flue gas inlet end and flows to the side away from the cooling fan 8.

[0041] That is to say, part of the cooling air flow can be gathered on the side close to the cooling fan 8 at this time, and part of the cooling air flow is also guided to the position between the first deflector 511 and the second deflector 512. Another part of the cooling air flow is on the side of the second deflector 512 in the cooling chamber 51 away from the cooling fan 8, so that the cooling air flow can be properly distributed along the length direction of the cooling chamber 51. At the same time, the first deflector 511 and the second deflector 512 staggered along the second direction provide a flow space for the flow of the cooling air flow.

[0042] In some embodiments, the projections of the ends of the first deflector 511 and the second deflector 512 along the first direction partially overlap.

[0043] That is to say, assuming that the two first flow guiding plates 511 and the second flow guiding plate 512 are completely staggered along the second direction, the gap between the first flow guiding plate 511 and the second flow guiding plate 512 along the second direction is too large, and a large amount of cooling air flow will flow in the first direction away from the cooling fan 8, resulting in poor aggregation and guiding effects on the cooling air flow. When the first flow guiding plate 511 and the second flow guiding plate 512 are arranged in the cooling cavity 51 with a stagger along the second direction, the projections of the ends of the first flow guiding plate 511 and the second flow guiding plate 512 close to each other overlap in the first direction. Then, when the cooling air flow flows into the space between the first flow guiding plate 511 and the second flow guiding plate 512, the first flow guiding plate 511 and the second flow guiding plate 512 can have a good effect on aggregating and guiding part of the cooling air flow, which is equivalent to lengthening the flow path of the cooling air flow, thereby reducing the large amount of cooling air flow flowing in the direction away from the cooling fan 8.

[0044] In some embodiments, the extension heights of the first flow guiding plate 511 and the second flow guiding plate 512 along the second direction are equal. In practice, when the first flow guiding plate 511 and the second flow guiding plate 512 are both perpendicular to the first direction and parallel to the second direction, and the heights of the first flow guiding plate 511 and the second flow guiding plate 512 along the second direction are the same, when the first flow guiding plate 511 and the second flow guiding plate 512 guide the cooling air flow, the cooling air flow can be more evenly dispersed in the cooling cavity 51.

[0045] Furthermore, as Figure 2 shown, the cross-section of the cooling cavity 51 is rectangular, the heights of the first flow guiding plate 511 and the second flow guiding plate 512 along the second direction are the same, and both are slightly greater than half of the width of the rectangle. At this time, when the cooling air flow is blown into the cooling cavity 51 in the first direction, when passing through the first flow guiding plate 511, part of the channels through which the cooling air flow passes can be blocked, leaving another part of the channels through which the cooling air flow passes. Thus, part of the cooling air flow is aggregated between the first flow guiding plate 511 and the cooling fan 8, and part of the cooling air flow can continue to flow in the first direction away from the cooling fan 8.

[0046] In some embodiments, the cooling module 5 includes a first panel 53 and a second panel 54 arranged opposite to each other along the third direction. The third direction is perpendicular to the first direction and perpendicular to the second direction. Both ends of the first flow guiding plate 511 along the third direction are connected to the first panel 53 and the second panel 54, and both ends of the second flow guiding plate 512 along the third direction are connected to the first panel 53 and the second panel 54.

[0047] In practice, the cooling cavity 51 of the cooling module 5 extends not only in the first direction but also in the second and third directions. The flue gas flows into the cooling module 5 in the second direction of the cooling cavity 51, and while the cooling air flow moves in the first direction, it also moves in the third direction. The two ends of the first deflector 511 in the third direction are connected to the first panel 53 and the second panel 54 respectively, and the two ends of the second deflector 512 in the third direction are also connected to the first panel 53 and the second panel 54 respectively, preventing the cooling air flow from flowing to one end away from the cooling fan 8 on one side of the first deflector 511 and the second deflector 512 in the third direction, facilitating the control of the flow direction of the cooling air flow and preventing the cooling air flow from flowing disorderly in large quantities.

[0048] Referring to Figure 1 and Figure 2 and Figure 4 shown, the first direction is the Figure 1 and Figure 2 left - right direction, the second direction is the Figure 1 and Figure 2 up - down direction, Figure 4 is Figure 1 the top - view of the cooling cavity 51 of Figure 1 and Figure 2 the front - back direction, such as the front side of the cooling cavity 51 is the first panel 53, the rear side is the second panel 54, and both the first deflector 511 and the second deflector 512 extend in the third direction, that is, extend in the Figure 1 and Figure 2 front - back direction, and are connected to the first panel 53 and the second panel 54. Figure 3 In

[0049]

[0050] some embodiments, the cooling module 5 includes a third panel 55 and a fourth panel 56 arranged in the first direction. The third panel 55, the fourth panel 56, the first panel 53 and the second panel 54 enclose the cooling cavity 51, and the air inlet 521 is arranged at the middle position of the third panel 55 or the fourth panel 56.In practice, an air inlet 521 is provided at the third panel 55. The third panel 55 extends outward at the air inlet 521 to form a mounting portion 52. The air inlet 521 is internally connected to the mounting portion 52. The fan frame is mounted at one end of the mounting portion 52, and the cooling fan 8 is mounted on the fan frame. The fan frame is provided with an air outlet communicating with the mounting portion 52, so that the cooling fan 8 drives the cooling air flow to blow towards the air inlet 521 along the air outlet, so as to cool the flue gas entering the cooling module 5 with the cooling air flow. The air inlet 521 is arranged at the middle position of the third panel 55, so that the cooling air flow is first evenly dispersed in different directions of the cooling chamber 51 after entering the cooling chamber 51, and then is guided by the first deflector 511 and the second deflector 512, so that the flow direction of the cooling air flow is convenient to control.

[0051] In some embodiments, the distance between the first deflector 511 and the cooling fan 8 is less than the distance between the first deflector 511 and the second deflector 512.

[0052] That is to say, when the air inlet 521 is arranged on the third panel 55, the distance between the first deflector 511 and the third panel 55 is less than the distance between the first deflector 511 and the second deflector 512. That is to say, during the flow of the cooling air flow, only a relatively small amount of cooling air flow needs to be gathered near the cooling fan 8, and a large amount of cooling air flow flows to the side of the first deflector 511 away from the cooling fan 8. At the same time, the volume between the first deflector 511 and the second deflector 512 is relatively large, so a large amount of cooling air flow can be accommodated, while the distance between the first deflector 511 and the third panel 55 is relatively small, so less cooling air flow can be accommodated. Then, through the arrangement of the first deflector 511 and the second deflector 512, the cooling air flow is not too thick or too thin, and can be evenly distributed along the first direction and evenly mixed with the flue gas.

[0053] In some embodiments, the combustion module 4 includes an intake fan 3, a mixing box 1, and a gas intake pipeline 2. The intake fan 3 and the gas intake pipeline 2 are located on two opposite sides of the mixing box 1.

[0054] Specifically, the mixing box 1 is a cavity for pre-mixing air and gas. The opposite two sides of the mixing box 1 are respectively provided with a fan and a gas intake pipeline 2. The intake fan 3 brings air into the mixing box 1, and the gas intake pipeline 2 brings gas into the mixing box 1. The intake fan 3 and the gas intake pipeline 2 are on two opposite sides of the mixing box 1, that is, the air and gas are made to collide with each other, ensuring that the air and gas are mixed more evenly, so that after the ignition needle 7 ignites the gas, the gas can burn stably.

[0055] 1. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "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 utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0056] 2. In the description of the present utility model, "the first feature" and "the second feature" may include one or more of such features.

[0057] 3. In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0058] 4. In the description of the present utility model, that the first feature is "above" or "below" the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but in contact through additional features therebetween.

[0059] 5. In the description of the present utility model, that the first feature is "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0061] 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. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A gas steaming and baking system, characterized in that: include: A combustion module, wherein a combustion chamber is formed in the combustion module, and the combustion chamber has a smoke outlet; A heat exchange module, wherein a heat exchange cavity is formed in the heat exchange module, and a heat exchange pipeline is provided in the heat exchange cavity; A cooling module, wherein a cooling cavity is formed in the cooling module, and the smoke at the smoke outlet is suitable for flowing to the heat exchange cavity after passing through the cooling cavity. The cooling module includes a cooling fan, and the cooling fan is used to drive the cooling airflow to cool the smoke flowing through the cooling cavity. A guide plate is also provided in the cooling cavity, and the angle between the guide plate and the flow direction of the smoke is smaller than the angle between the guide plate and the flow direction of the cooling airflow.

2. The gas steaming and baking system according to claim 1, characterized in that: The cooling cavity has an air flow inlet penetrating along a first direction and a smoke inlet and a smoke outlet distributed along a second direction. The first direction is perpendicular to the second direction, and the guide plate is perpendicular to the first direction and parallel to the second direction.

3. The gas steaming and baking system according to claim 2, characterized in that: The number of the guide plates is two and they include a first guide plate and a second guide plate respectively. The first guide plate and the second guide plate are spaced apart and distributed along the first direction.

4. The gas steaming and baking system according to claim 3, characterized in that: The cooling cavity includes a smoke inlet end and a smoke outlet end along the second direction, one end of the first guide plate is close to the smoke inlet end and has a distance from the smoke outlet end, and one end of the second guide plate is close to the smoke outlet end and has a distance from the smoke inlet end.

5. The gas steaming and baking system according to claim 4, characterized in that: Projections of ends of the first guide plate and the second guide plate along the first direction partially overlap.

6. The gas steaming and baking system according to claim 4, characterized in that: The first guide plate and the second guide plate have the same extension height along the second direction.

7. The gas steaming and baking system according to claim 3, characterized in that: The cooling module includes a first panel and a second panel arranged relatively to each other along a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction, wherein the first guide plate is connected to the first panel and the second panel at both ends along the third direction, and the second guide plate is connected to the first panel and the second panel at both ends along the third direction.

8. The gas steaming and baking system according to claim 7, characterized in that: The cooling module includes a third panel and a fourth panel arranged along the first direction. The third panel, the fourth panel, the first panel and the second panel form the cooling cavity. The air flow inlet is arranged in the middle of the third panel or the fourth panel.

9. The gas steaming and baking system according to claim 8, characterized in that: The distance between the first guide plate and the cooling fan is smaller than the distance between the first guide plate and the second guide plate.

10. The gas steaming and baking system according to claim 1, characterized in that: The combustion module comprises an air intake fan, an air mixing box and a gas intake pipeline, wherein the air intake fan and the gas intake pipeline are located at two opposite sides of the air mixing box.

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