Cooking equipment

Abstract

The utility model discloses cooking equipment, which comprises a cooking device, a heating device and a control device, the fuel gas steaming and baking module is connected with the cooking device and used for supplying steam and / or flue gas to the cooking cavity, the fuel gas steaming and baking module comprises a heat exchanger, a heat exchange cavity is defined in the heat exchanger, the heat exchanger comprises a heat exchange pipe and a turbulent flow structure, at least one part of the heat exchange pipe is arranged in the heat exchange cavity, and the heat exchange pipe is suitable for introducing water for heat exchange; the turbulent flow structure is arranged in the heat exchange cavity and used for increasing the flow speed of airflow. According to the cooking equipment provided by the embodiment of the utility model, the turbulent flow structure is arranged in the heat exchange cavity, so that the flue gas can be ensured to be in full contact with the heat exchange pipe, and the flow speed of flue gas flow can be accelerated, thereby improving the heat exchange effect between the flue gas and water and improving the heat exchange efficiency of the heat exchanger.

Description

Technical Field

[0001] The utility model relates to the technical field of gas systems, and in particular to a cooking device. Background Art

[0002] In the related art, in order to ensure the effective cooking volume inside the existing steam oven, the installation space reserved for the gas steam roasting system in the steam oven is small, which increases the structural design difficulty of the gas steam roasting system. Moreover, due to the size limitation of the gas steam roasting system, the heat exchange area of the heat exchanger is small, and the heat exchange efficiency of the heat exchanger is low, so there is room for improvement. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a cooking device, which can improve the heat exchange efficiency of the heat exchanger.

[0004] The cooking device according to an embodiment of the utility model includes: a cooking device, which defines a cooking cavity; a gas steam roasting module, which is connected to the cooking device and is used for supplying steam and / or flue gas to the cooking cavity. The gas steam roasting module includes a heat exchanger, which defines a heat exchange cavity. The heat exchanger includes heat exchange tubes and a flow disturbing structure. At least a part of the heat exchange tubes is arranged in the heat exchange cavity. The heat exchange tubes are adapted to pass water for heat exchange. The flow disturbing structure is arranged in the heat exchange cavity and is used for accelerating the flow rate of the air flow.

[0005] According to the cooking device of the embodiment of the utility model, by arranging the flow disturbing structure in the heat exchange cavity, the flow direction of the flue gas air flow can be guided, which is beneficial to the flow of the flue gas on the surface of the heat exchange tubes, can ensure the full contact between the flue gas and the heat exchange tubes, and at the same time can extend the flow path of the flue gas air flow and accelerate the flow rate of the flue gas air flow. Therefore, the heat exchange effect between the flue gas and water can be improved, and the heat exchange efficiency of the heat exchanger can be improved. Moreover, compared with the technical solution of increasing the size of the heat exchanger to increase the heat exchange area, on the basis of improving the heat exchange efficiency of the heat exchanger, the size of the heat exchanger can be reduced, so that on the basis of ensuring the volume of the cooking cavity, it is beneficial to the miniaturization of the cooking device.

[0006] According to some embodiments of the utility model, the heat exchange tubes include a plurality of straight tubes and a plurality of bent tubes. The plurality of straight tubes are arranged in parallel and at intervals. The bent tubes are arranged at one end of the straight tubes, and two adjacent straight tubes are connected through the bent tubes. The flow disturbing structure is arranged between two adjacent straight tubes and is arranged at intervals with the straight tubes.

[0007] In some examples, the heat exchanger has a first direction, and a part of opposite sides of the heat exchanger in the first direction is open to form an opening for the flue gas to flow through the heat exchange chamber. The flow disturbing structure is arranged between two adjacent straight pipes, and one side of the flow disturbing structure close to the straight pipe has a guiding surface, and the guiding surface is arranged at an interval from the wall surface of the straight pipe.

[0008] In some examples, the two guiding surfaces of the flow disturbing structure gradually approach each other in the first direction, and / or the two guiding surfaces of the flow disturbing structure gradually move away from each other in the first direction.

[0009] In some examples, the flow disturbing structure is a guide plate, and the guide plate is arranged along the circumferential direction of the straight pipe.

[0010] In some examples, the two guiding surfaces of the flow disturbing structure first approach and then move away from each other in the first direction.

[0011] In some examples, the guiding surface is a flat straight surface, and / or the guiding surface is an arc surface.

[0012] In some examples, the cross section of the flow disturbing structure is circular, and / or the cross section of the flow disturbing structure is triangular.

[0013] In some examples, the extending direction of the flow disturbing structure is the same as the extending direction of the straight pipe.

[0014] According to some embodiments of the present invention, the gas steaming and baking module further includes: a burner, and the burner defines a combustion chamber communicating with the heat exchange chamber so that the flue gas in the combustion chamber is introduced into the heat exchange chamber.

[0015] According to some embodiments of the present invention, the gas steaming and baking module further includes: a cooler, and the cooler defines a cooling chamber communicating with the combustion chamber, and cold air is suitable for being introduced into the cooling chamber to cool the flue gas.

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

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

[0018] Figure 1 is a schematic structural diagram of a gas steaming and baking module according to some embodiments of the present invention;

[0019] Figure 2is a cross-sectional view of a heat exchanger according to some embodiments of the present utility model;

[0020] Figure 3 is Figure 2 a simulation schematic diagram of the heat exchanger in

[0021] Figure 4 is a cross-sectional view of a heat exchanger according to some other embodiments of the present utility model;

[0022] Figure 5 is Figure 4 a simulation schematic diagram of the heat exchanger in

[0023] Figure 6 is a cross-sectional view of a heat exchanger according to still some other embodiments of the present utility model;

[0024] Figure 7 is Figure 6 a simulation schematic diagram of the heat exchanger in

[0025] Figure 8 is a simulation schematic diagram of a heat exchanger according to still some other embodiments of the present utility model;

[0026] Figure 9 is a simulation schematic diagram of a heat exchanger of the prior art;

[0027] Figure 10 is a structural schematic diagram of a cooking device according to some embodiments of the present utility model.

[0028] Reference numerals:

[0029] Cooking device 1000,

[0030] Gas steaming and baking module 100, flue gas outlet 110, cooking device 200, cooking cavity 210, flue gas inlet 220, steam inlet 230, exhaust port 240, gas stove 300,

[0031] Burner 10, first blower 11,

[0032] Cooler 20, second blower 21,

[0033] Heat exchanger 30, heat exchange cavity 31, heat exchange tube 32, water inlet 321, air outlet 322, straight tube 323, bent tube 324, water pump 33, turbulence structure 34, flow guiding surface 341, flow guiding plate 342,

[0034] Gas branch 40, first branch 41, first valve 411, second branch 42, second valve 421,

[0035] Exhaust branch 50, turning valve 51, smoke exhaust port 52. Detailed implementation manners

[0036] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where 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 by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0037] In the description of the present utility model, it should be understood that 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, and thus should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] Reference will be made below Figures 1 - 10 to describe a cooking device 1000 according to an embodiment of the present utility model.

[0040] As Figures 1 - 10 shown, a cooking device 1000 according to an embodiment of the present utility model includes: a cooking device 200 and a gas steaming and roasting module 100. The cooking device 200 defines a cooking cavity 210. The gas steaming and roasting module 100 is connected to the cooking device 200. The gas steaming and roasting module 100 can supply steam to the cooking cavity 210 to steam food, and the gas steaming and roasting module 100 can supply flue gas to the cooking cavity 210 to roast food. Thus, various cooking methods can be used to cook food, improving the user experience. It can be understood that the cooking device 1000 can be a gas steaming and roasting machine.

[0041] The gas steam cooking module 100 includes a heat exchanger 30 which defines a heat exchange chamber 31. The heat exchanger 30 includes heat exchange tubes 32 and a flow disturbance structure 34. At least a part of the heat exchange tubes 32 can be arranged in the heat exchange chamber 31, and water can be introduced into the heat exchange tubes 32. The high-temperature flue gas in the heat exchange tubes 32 can exchange heat with the water through the tube walls of the heat exchange tubes 32 to evaporate the water into water vapor.

[0042] The flow disturbance structure 34 can be arranged in the heat exchange chamber 31, which can realize the guiding of the flue gas flow, increase the probability of the flue gas flowing on the surface of the heat exchange tubes 32, ensure sufficient contact between the flue gas and the heat exchange tubes 32, and at the same time can extend the flow path of the flue gas flow, accelerate the flow rate of the flue gas flow, thereby improving the heat exchange effect between the flue gas and the water, improving the heat exchange efficiency of the heat exchanger 30, and on the basis of ensuring that the gas steam cooking module 100 is within the normal load range, enabling a larger flow rate of water to evaporate into water vapor and improving the cooking effect on food.

[0043] For the cooking device 1000 according to an embodiment of the present invention, by arranging the flow disturbance structure 34 in the heat exchange chamber 31, the flow direction of the flue gas flow can be guided, which is beneficial to the flue gas flowing on the surface of the heat exchange tubes 32, ensuring sufficient contact between the flue gas and the heat exchange tubes 32, and at the same time can extend the flow path of the flue gas flow, accelerate the flow rate of the flue gas flow, thereby improving the heat exchange effect between the flue gas and the water, improving the heat exchange efficiency of the heat exchanger 30; and compared with the technical solution of increasing the size of the heat exchanger 30 to increase the heat exchange area, on the basis of improving the heat exchange efficiency of the heat exchanger 30, the size of the heat exchanger 30 can be reduced, so that on the basis of ensuring the volume of the cooking chamber 210, it is beneficial to the miniaturization of the cooking device 1000.

[0044] As Figure 2 、 Figure 4 、 Figure 6 and Figure 10 shown, according to some embodiments of the present invention, the heat exchange tubes 32 include a plurality of straight tubes 323 and a plurality of bent tubes 324. The plurality of straight tubes 323 are parallel to each other and arranged at intervals, allowing the flue gas to flow through the tube walls of the plurality of straight tubes 323, so as to facilitate the heat exchange between the flue gas and the water in the straight tubes 323 through the tube walls of the straight tubes 323.

[0045] The bent tubes 324 can be arranged at one end of the straight tubes 323 (such as Figure 1 the left end or the right end shown), and two adjacent straight tubes 323 are connected by the bent tubes 324. On the basis of ensuring that the plurality of straight tubes 323 are parallel to each other to fully utilize the space in the heat exchange chamber 31, it can ensure that water flows through the plurality of straight tubes 323, which is beneficial to improving the heat exchange effect between the flue gas and the water.

[0046] The spoiler structure 34 can be arranged between two adjacent straight pipes 323 to ensure that the flue gas flow passes through the spoiler structure 34 when flowing through multiple straight pipes 323, so as to facilitate the spoiler structure 34 to guide the flue gas flow, which is beneficial to ensuring sufficient contact between the flue gas and the heat exchange pipes 32, and can extend the flow path of the flue gas flow to accelerate the flow rate of the flue gas flow, which is beneficial to improving the heat exchange effect between the flue gas and water and improving the heat exchange efficiency of the heat exchanger 30. Among them, the spoiler structure 34 is arranged at intervals with the straight pipe 323, which can ensure that the flue gas flow passes through the gap between the spoiler structure 34 and the straight pipe 323, which is beneficial to reducing the probability of flue gas flow disorder and improving the guiding effect of the spoiler structure 34 on the flue gas flow.

[0047] It can be understood that the heat exchange pipes 32 can be located in the heat exchange cavity 31, which is beneficial to the contact between the flue gas flow and the entire heat exchange pipes 32, can increase the contact area between the flue gas flow and the heat exchange pipes 32, and thus improve the heat exchange efficiency of the heat exchanger 30; or, a part of the heat exchange pipes 32 is located in the heat exchange cavity 31. For example, the straight pipes 323 of the heat exchange pipes 32 are located in the heat exchange cavity 31, and the bent pipes 324 of the heat exchange pipes 32 are located outside the heat exchange cavity 31, which can increase the fixed positions of the heat exchange pipes 32 on the outer wall of the heat exchanger 30 and is beneficial to improving the working stability of the heat exchange pipes 32.

[0048] Such as Figure 2 、 Figure 4 and Figure 6 As shown, in some examples, the heat exchanger 30 has a first direction (such as Figure 1 the up and down direction shown), and a part of the opposite sides of the heat exchanger 30 in the first direction (such as Figure 1 the upper side and the lower side shown) is open to form an opening. The flue gas can enter the heat exchange cavity 31 through one opening, and the flue gas in the heat exchange cavity 31 can flow out through the other opening, so that the flue gas flows through the heat exchange cavity 31.

[0049] The spoiler structure 34 can be arranged between two adjacent straight pipes 323. One side of the spoiler structure 34 close to the straight pipe 323 (such as Figure 2 the front side and the rear side shown) has a guiding surface 341, which can realize the guiding of the flue gas flow, increase the probability of the flue gas flowing on the surface of the heat exchange pipes 32, and ensure sufficient contact between the flue gas and the heat exchange pipes 32. The guiding surface 341 is arranged at intervals with the wall surface of the straight pipe 323, which can ensure that the flue gas flow passes through the gap between the guiding surface 341 and the straight pipe 323, which is beneficial to reducing the probability of flue gas flow disorder and improving the guiding effect of the guiding surface 341 on the flue gas flow.

[0050] Such as Figure 2 As shown, in some examples, the two guiding surfaces 341 of the spoiler structure 34 can gradually approach in the first direction (such as Figure 1 the up and down direction shown), for example, along such asFigure 2 In the upward direction as shown, the two guiding surfaces 341 of the flow disturbing structure 34 can gradually approach each other, which can extend the flow path of the flue gas flow, so as to accelerate the flow rate of the flue gas flow, which is beneficial to improving the heat exchange effect between the flue gas and water and enhancing the heat exchange efficiency of the heat exchanger 30.

[0051] As Figure 2 shown, in some examples, the two guiding surfaces 341 of the flow disturbing structure 34 can gradually move away from each other along the first direction (such as Figure 1 the up-and-down direction shown), for example, along the up-and-down direction as shown in Figure 2 the two guiding surfaces 341 of the flow disturbing structure 34 can gradually move away from each other, which can extend the flow path of the flue gas flow, so as to accelerate the flow rate of the flue gas flow, which is beneficial to improving the heat exchange effect between the flue gas and water and enhancing the heat exchange efficiency of the heat exchanger 30.

[0052] As Figure 2 shown, in some examples, there are more flow disturbing structures 34. Along the up-and-down direction as shown in Figure 2 the two guiding surfaces 341 of a part of the flow disturbing structures 34 (for example, the flow disturbing structures 34 located below the plurality of straight tubes 323) can gradually approach each other, which is beneficial for the flow disturbing structures 34 to guide the flue gas flow into the spaces between the plurality of straight tubes 323. The two guiding surfaces 341 of another part of the flow disturbing structures 34 (for example, the flow disturbing structures 34 located above the plurality of straight tubes 323) can gradually move away from each other, which is beneficial for the flow disturbing structures 34 to guide the flue gas flow between the plurality of straight tubes 323 to flow out of the heat exchange chamber 31, so as to be beneficial to ensuring sufficient contact between the flue gas and the heat exchange tubes 32 and enhancing the heat exchange efficiency of the heat exchanger 30.

[0053] As Figure 4 shown, in some examples, the two guiding surfaces 341 of the flow disturbing structure 34 can first approach and then move away from each other along the first direction (such as Figure 4 the up-and-down direction shown), for example, along the up-and-down direction as shown in Figure 4 the two guiding surfaces 341 of the flow disturbing structure 34 can first gradually approach and then gradually move away from each other, which can extend the flow path of the flue gas flow, so as to accelerate the flow rate of the flue gas flow, which is beneficial to improving the heat exchange effect between the flue gas and water and enhancing the heat exchange efficiency of the heat exchanger 30.

[0054] As Figure 2 shown, in some examples, the guiding surface 341 can be a flat surface, which can simplify the structure of the flow disturbing structure 34 and is convenient for processing on the basis of improving the guiding effect on the flue gas flow.

[0055] As Figure 4 , Figure 6 and Figure 8As shown, in some examples, the flow guiding surface 341 can be an arc surface, which can make the diffusion of the flue gas flow more uniform, thereby reducing the probability of turbulence generation in the flue gas flow, being conducive to the full contact between the flue gas and the heat exchange tubes 32, improving the heat exchange efficiency of the heat exchanger 30, and reducing the energy consumption of the cooking device 1000.

[0056] As Figure 2 shown, in some examples, the cross-section of the flow disturbing structure 34 is triangular, which can effectively disturb the flue gas flow, thereby changing the direction and speed of the flue gas flow, being conducive to improving the heat exchange effect between the flue gas and water, and improving the heat exchange efficiency of the heat exchanger 30.

[0057] As Figure 6 shown, in some examples, the cross-section of the flow disturbing structure 34 can be circular, which is conducive to arranging the flow disturbing structure 34 between multiple straight tubes 323. On the basis of ensuring the heat exchange efficiency of the heat exchanger 30, the space in the heat exchange chamber 31 can be fully utilized, which is conducive to reducing the size of the heat exchanger 30, and thus, on the basis of ensuring the volume of the cooking chamber 210, it is conducive to the miniaturization of the cooking device 1000.

[0058] As Figure 8 shown, in some examples, the flow disturbing structure 34 can be a flow guiding plate 342, and the flow guiding plate 342 can be arranged along the circumferential direction of the straight tube 323. Among them, the flow guiding plate 342 can be arranged at an interval from the wall surface of the straight tube 323, and two adjacent flow guiding plates 342 can be arranged at an interval. On the basis of being able to realize the flow guiding of the flue gas flow, the smoothness of the flue gas flow can be improved. Thus, on the basis of the normal heat exchange of the heat exchanger 30, the impact degree of the flue gas on the straight tube 323 can be reduced, which is conducive to improving the service life of the heat exchanger 30.

[0059] In some examples, the extending direction of the flow disturbing structure 34 is the same as the extending direction of the straight tube 323 (such as Figure 1 the left-right direction shown), which can increase the contact area between the flue gas and the flow disturbing structure 34, improve the guiding effect of the flow disturbing structure 34 on the flue gas flow, and make the flue gas flow in the heat exchange chamber 31 flow uniformly. On the basis of accelerating the flow rate of the flue gas flow, it can ensure the full contact between the flue gas and the heat exchange tubes 32, which is conducive to improving the heat exchange efficiency of the heat exchanger 30.

[0060] In some examples, Figure 3 、 Figure 5 、 Figure 7 and Figure 8 are the simulation schematic diagrams of the heat exchanger 30 of the technical solution of the present application, while Figure 9 is the simulation schematic diagram of the heat exchanger in the prior art. After analyzing the above-mentioned drawings and through comparison, it can be known that Figure 3 and Figure 5The velocity vectors of the flue gas flow in it are approximately the same, that is Figure 2 and Figure 4 the heat exchange efficiency of the heat exchanger 30 shown is approximately the same.

[0061] And Figure 7 Compared with Figure 3 , the velocity vector of the flue gas flow in it is lower, and Figure 8 Compared with Figure 7 , the velocity vector of the flue gas flow in it is even lower, that is Figure 2 the heat exchange efficiency of the heat exchanger 30 shown is greater than Figure 6 the heat exchange efficiency of the heat exchanger 30 shown, and Figure 6 the heat exchange efficiency of the heat exchanger 30 shown is greater than Figure 8 the heat exchange efficiency of the heat exchanger 30 shown, but Figure 9 Compared with Figure 8 , the velocity vector of the flue gas flow in it is even lower. Thus, the heat exchange efficiency of the heat exchanger 30 of the present application is greater than that of the heat exchanger 30 of the prior art, with good cooking effect and lower energy consumption.

[0062] As Figure 1 and Figure 10 shown, according to some embodiments of the present utility model, the gas steaming and baking module 100 further includes: a burner 10. The cooking device 1000 further includes a gas branch 40. The gas branch 40 includes a first branch 41. The first branch 41 can be communicated with the burner 10, and the first branch 41 can have a first valve 411. By opening the first valve 411, the first branch 41 can introduce gas into the burner 10. The cooking device 1000 further includes a first blower 11. The air outlet of the first blower 11 is communicated with the burner 10. The first blower 11 can pump air into the burner 10. Among them, the first blower 11 can be a centrifugal blower, with good air-blowing effect and low working noise, which is beneficial to improving the user experience.

[0063] The burner 10 defines a combustion chamber. Gas and air can be mixed in the burner 10 and then enter the combustion chamber for combustion. When the combustible gas (the mixed gas of gas and air) in the combustion chamber burns, high-temperature flue gas is generated. The combustion chamber can be communicated with the heat exchange chamber 31 so that the flue gas in the combustion chamber can be directly introduced into the heat exchange chamber 31.

[0064] In addition, the cooking device 1000 can be arranged near the gas stove 300. For example, the cooking device 1000 can be arranged below the gas stove 300, which can make full use of the kitchen space. Moreover, the gas branch 40 further includes a second branch 42. The second branch 42 is communicated with the gas stove 300, and the second branch 42 can be provided with a second valve 421. By opening the second valve 421, gas can be introduced into the gas stove 300 through the second branch 42, which can ensure the normal use of the gas stove 300 and is beneficial to the cooking device 1000 and the gas stove 300 sharing the gas branch 40, thus saving the installation cost of the cooking device 1000.

[0065] As Figure 1 and Figure 10 shown, according to some embodiments of the present invention, the gas steaming and baking module 100 further includes: a cooler 20. The cooler 20 can be arranged on the burner 10. The cooler 20 defines a cooling chamber, and the cooling chamber can be communicated with the combustion chamber, that is, the high-temperature flue gas generated by the combustion of the combustible gas in the combustion chamber can enter the cooling chamber. Moreover, a second fan 21 is installed on the cooler 20, and the air outlet of the second fan 21 is communicated with the cooling chamber. The second fan 21 can pump cold air into the cooling chamber, which can realize the cooling of the high-temperature flue gas, thus being beneficial to realizing the regulation of the temperature of the flue gas and improving the cooking effect on food. Among them, the second fan 21 can be a centrifugal fan, which has good cooling effect and low working noise, being beneficial to improving the user experience.

[0066] As Figure 1 and Figure 10 shown, according to some embodiments of the present invention, the heat exchanger 30 can be arranged on the burner 10, so that the high-temperature flue gas in the combustion chamber can directly enter the heat exchange chamber 31. Moreover, by increasing the power of the first fan 11, the air intake volume can be increased to pump cold air into the combustion chamber, thus realizing the cooling of the high-temperature flue gas and being beneficial to realizing the regulation of the temperature of the flue gas; or, by arranging a cooler 20 on the burner 10 and arranging the heat exchanger 30 on the cooler 20, that is, by arranging the second fan 21, on the basis of realizing the cooling of the high-temperature flue gas, it is beneficial to reduce the power of the first fan 11.

[0067] As Figure 1 and Figure 10As shown, according to some embodiments of the present utility model, the heat exchange tube 32 has a water inlet 321 and an air outlet 322, and a water pump 33 is installed on the heat exchanger 30. The outlet of the water pump 33 is communicated with the heat exchange tube 32 through the water inlet 321. The cooking device 200 has a steam inlet 230. The air outlet 322 of the heat exchange tube 32 is communicated with the cooking cavity 210 through the steam inlet 230. The water pump 33 can pump water into the heat exchange tube 32 so that the water exchanges heat with the high-temperature flue gas through the tube wall of the heat exchange tube 32. For example, the high-temperature flue gas can heat the water to evaporate it into water vapor, and the water vapor can enter the cooking cavity 210 to steam the food.

[0068] As Figure 1 and Figure 10 shown, according to some embodiments of the present utility model, the cooking device 1000 further includes an exhaust branch 50. The exhaust branch 50 has a steering valve 51. The gas steaming and roasting module 100 may have a flue gas outlet 110. The exhaust branch 50 can be communicated with the heat exchange cavity 31 through the flue gas outlet 110. The cooking device 200 also has a flue gas inlet 220. The steering valve 51 can control the exhaust branch 50 to be communicated with the cooking cavity 210 through the flue gas inlet 220, so that the flue gas in the gas steaming and roasting module 100 can be introduced into the cooking cavity 210 to roast the food.

[0069] As Figure 1 and Figure 10 shown, according to some embodiments of the present utility model, the exhaust branch 50 further has a smoke exhaust port 52. The steering valve 51 can be arranged upstream of the exhaust branch 50, so that the steering valve 51 can control the smoke exhaust port 52 of the exhaust branch 50 to be communicated with the flue gas outlet 110 of the gas steaming and roasting module 100, so that the flue gas in the gas steaming and roasting module 100 can be directly discharged from the cooking device 1000; the cooking device 200 also has an exhaust port 240. The exhaust port 240 is communicated with the downstream of the exhaust branch 50, so that the steam in the cooking device 200 can be discharged through the exhaust port 240 and the smoke exhaust port 52 in sequence, or the flue gas in the cooking device 200 can be discharged through the exhaust port 240 and the smoke exhaust port 52 in sequence.

[0070] It can be understood that the cooking device 1000 has a steaming mode and a roasting mode. In the steaming mode, the high-temperature flue gas generated by the combustion of the combustible gas in the burner 10 can enter the heat exchange cavity 31, so that the water in the heat exchange tube 32 evaporates into water vapor and enters the cooking cavity 210 to steam the food. At this time, the steering valve 51 can control the smoke exhaust port 52 of the exhaust branch 50 to be communicated with the flue gas outlet 110 of the gas steaming and roasting module 100, so that the waste flue gas (for example, low-temperature flue gas) in the gas steaming and roasting module 100 can be directly discharged from the cooking device 1000, and the exhaust port 240 of the cooking device 200 is communicated with the exhaust branch 50, so that the steam in the cooking device 200 can be discharged through the exhaust port 240 and the smoke exhaust port 52 in sequence.

[0071] In the baking mode, the steering valve 51 can control the exhaust branch 50 to communicate with the cooking cavity 210 through the flue gas inlet 220. The high-temperature flue gas generated by the combustion of the combustible gas in the burner 10 can enter the cooking cavity 210 after cooling to bake the food. At this time, the exhaust port 240 of the cooking device 200 is communicated with the exhaust branch 50, so that the steam in the cooking device 200 can be discharged through the exhaust port 240 and the smoke exhaust port 52 in sequence.

[0072] The following will refer to Figures 1 - 10 to describe some specific embodiments of the present application. The cooking device 1000 may be an integrated stove, and the integrated stove includes a gas stove 300 and a gas steam oven. The cooking device 1000 includes a gas branch 40, and the gas branch 40 includes a first branch 41 and a second branch 42. The first branch 41 is communicated with the gas steam oven and can supply gas to the gas steam oven, and the first branch 41 has a first valve 411. The second branch 42 is communicated with the gas stove 300 and can supply gas to the gas stove 300, and the second branch 42 has a second valve 421.

[0073] The gas steam oven includes: a gas steam baking module 100 and a cooking device 200. The gas steam baking module 100 includes: a burner 10, a cooler 20 and a heat exchanger 30. The first branch 41 is communicated with the burner 10. The burner 10 is equipped with a first fan 11, and the air outlet of the first fan 11 is communicated with the burner 10. The cooler 20 is arranged on the burner 10 and communicated with the burner 10. The cooler 20 is equipped with a second fan 21, and the air outlet of the second fan 21 is communicated with the cooler 20. The heat exchanger 30 is arranged on the cooler 20 and communicated with the cooler 20.

[0074] The heat exchanger 30 has a heat exchange tube 32. The heat exchange tube 32 has a water inlet 321 and an air outlet 322, and the heat exchange tube 32 includes a straight tube 323 and a bent tube 324. The bent tube 324 is arranged at the end of the straight tube 323 to communicate two adjacent straight tubes 323. The cooking device 200 has a steam inlet 230, and the steam inlet 230 is communicated with the air outlet 322. The cooking device 1000 further includes an exhaust branch 50. The cooking device 200 further has a flue gas inlet 220 and an exhaust port 240. A steering valve 51 is installed upstream of the exhaust branch 50. The flue gas inlet 220 is communicated with the upstream of the exhaust branch 50 through the steering valve 51. The exhaust port 240 is communicated with the downstream of the exhaust branch 50, and the tail of the exhaust branch 50 has a smoke exhaust port 52.

[0075] As Figures 1 - 10As shown in the figure, the usage process of the cooking device 1000 is as follows: By opening the second valve 421, gas can be supplied to the gas stove 300 for the user to use the gas stove 300; by opening the first valve 411, gas can be supplied to the gas steam oven for the user to use the gas steam oven.

[0076] The working process of the gas steam oven is as follows: By opening the first valve 411, gas can enter the burner 10, and by opening the first blower 11, air can enter the burner 10, so that the gas and air are pre-mixed sufficiently to form combustible gas, and the combustible gas can burn to generate high-temperature flue gas.

[0077] The user can select the working mode of the gas steam oven as the steaming mode. By opening the water pump 33, water can be driven to enter the heat exchange tube 32 through the water inlet 321, and high-temperature gas can enter the heat exchanger 30 to perform heat exchange with the water in the straight tube 323 through the tube wall of the straight tube 323. The water in the straight tube 323 evaporates into water vapor, and the water vapor can enter the cooking device 200 through the air outlet 322 and the steam inlet 230 in sequence to steam the food. The waste steam (for example, low-temperature steam) in the cooking device 200 can be discharged through the exhaust port 240 and the smoke outlet 52 of the exhaust branch 50 in sequence. At the same time, the turning valve 51 controls the communication between the flue gas outlet 110 and the smoke outlet 52, and the waste flue gas (for example, low-temperature flue gas) in the heat exchanger 30 can be discharged through the flue gas outlet 110 and the smoke outlet 52 in sequence.

[0078] The user can select the working mode of the gas steam oven as the baking mode. By opening the second blower 21, the high-temperature gas can first flow through the cooler 20 for cooling, and then enter the heat exchanger 30. The turning valve 51 controls the communication between the flue gas outlet 110 and the flue gas inlet 220. The cooled high-temperature flue gas can enter the cooking device 200 through the flue gas outlet 110 and the flue gas inlet 220 in sequence to bake the food, and the waste flue gas (for example, low-temperature steam) in the cooking device 200 can be discharged through the exhaust port 240 and the smoke outlet 52 of the exhaust branch 50 in sequence.

[0079] Other components and operations of the cooking device 1000 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here. In the description of the present invention, the "first feature" and "second feature" may include one or more of such features. Among them, the up-down direction, left-right direction, and front-back direction are subject to the up-down direction, left-right direction, and front-back direction shown in the figure.

[0080] In the description of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature.

[0081] In the description of this specification, the description of reference 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.

[0082] 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 cooking device, characterized in that: include: a cooking device defining a cooking cavity; A gas steam-bake module, which is connected to the cooking device and is used to supply steam and / or smoke to the cooking cavity. The gas steam-bake module includes a heat exchanger, which defines a heat exchange cavity. The heat exchanger includes a heat exchange tube and a turbulent structure. At least a portion of the heat exchange tube is arranged in the heat exchange cavity. The heat exchange tube is suitable for passing water to perform heat exchange. The turbulent structure is arranged in the heat exchange cavity and is used to accelerate the flow rate of the airflow.

2. The cooking device according to claim 1, characterized in that: The heat exchange tube includes a plurality of straight tubes and a plurality of bent tubes, the plurality of straight tubes are parallel and spaced apart, the bent tube is arranged at one end of the straight tube, and two adjacent straight tubes are connected through the bent tube, the spoiler structure is arranged between two adjacent straight tubes, and the spoiler structure and the straight tubes are spaced apart.

3. The cooking device according to claim 2, characterized in that: The heat exchanger has a first direction, and a portion of the heat exchanger on two opposite sides in the first direction is open to form an opening so that smoke can flow through the heat exchange cavity. The flow-disturbing structure is arranged between two adjacent straight tubes. The side of the flow-disturbing structure close to the straight tube has a guide surface, and the guide surface is arranged at an interval from the wall surface of the straight tube.

4. The cooking device according to claim 3, characterized in that: The two guide surfaces of the spoiler structure gradually approach each other along the first direction, And / or, the two guide surfaces of the spoiler structure gradually move away from each other along the first direction.

5. The cooking device according to claim 3, characterized in that: The spoiler structure is a guide plate, and the guide plate is arranged along the circumference of the straight tube.

6. The cooking device according to claim 3, characterized in that: The two guide surfaces of the spoiler structure first approach each other and then move away from each other along the first direction.

7. The cooking device according to any one of claims 3 to 6, characterized in that: The guide surface is a flat surface. And / or, the guide surface is a curved surface.

8. The cooking device according to any one of claims 2 to 6, characterized in that: The extending direction of the spoiler structure is the same as the extending direction of the straight tube.

9. The cooking device according to any one of claims 1 to 3, characterized in that: The cross section of the spoiler structure is circular, And / or, the cross-section of the spoiler structure is triangular.

10. The cooking device according to claim 1, characterized in that The gas steaming and baking module further includes a burner, wherein the burner defines a combustion chamber communicated with the heat exchange chamber, so that smoke in the combustion chamber can flow into the heat exchange chamber.

11. The cooking device according to claim 10, characterized in that The gas steaming and baking module further comprises: a cooler, which defines a cooling chamber connected to the combustion chamber, and the cooling chamber is suitable for introducing cold air to cool the smoke.

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