Heat exchange structure of gas steaming and baking system and gas steaming and baking system

Abstract

The utility model discloses a gas steaming and baking system heat exchange structure and the gas steaming and baking system, the gas steaming and baking system heat exchange structure comprises: a heat exchange housing, a heating cavity is formed in the heat exchange housing, the heat exchange housing is provided with a smoke inlet and a smoke outlet distributed along a first direction, the smoke inlet and the smoke outlet are respectively communicated with the heating cavity; the heating pipeline comprises a plurality of first pipe sections located in the heating cavity, the multiple first pipe sections are distributed at intervals in the second direction, a heat exchange gap penetrating in the first direction is formed between every two adjacent first pipe sections, and a vortex generating part is arranged in at least one heat exchange gap; an included angle is formed between the extending direction of the vortex generating part and the first direction. According to the heat exchange structure of the gas steaming and baking system, smoke can exchange heat with the heating pipeline in the heating cavity so as to steam or bake food, the vortex generating part is arranged, vortex can be generated when the smoke flows to the position where the vortex generating part is located, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking, in particular to a heat exchange structure of a gas steaming and baking system and a gas steaming and baking system with the heat exchange structure. Background Art

[0002] At present, the mainstream integrated stoves mainly integrate gas stoves, range hoods and steam ovens. On the premise that the total power of the whole machine is certain, it is necessary to meet the power requirements of both the steam oven and the range hood, resulting in a low power of the steam oven and a poor steaming and baking cooking experience.

[0003] The gas steaming and baking system is installed in the steam oven module of the integrated stove, and its size is affected by the structure of the steam oven. Usually, the gas steaming and baking system is installed on the back or side of the steam oven, and its thickness should not be too thick, otherwise it will occupy the cooking volume of the steam oven. According to the width / height of the back and side of the steam oven, the overall size of the gas steaming and baking system should be within 280*200*50mm, which is more appropriate. Due to size limitations, a light tube heat exchanger is generally used for heat exchange at present. However, due to the limited heat exchange area of the light tube heat exchanger, the heat exchange efficiency is not high, and there is room for improvement. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a heat exchange structure of a gas steaming and baking system. The heat exchange structure of the gas steaming and baking system can use gas as an energy source to realize the steaming or baking function of the gas steaming and baking system, and by setting an eddy current generating part, the heat exchange efficiency can be effectively improved, the cooking time can be shortened, and the user satisfaction can be improved.

[0005] According to an embodiment of the utility model, the heat exchange structure of the gas steaming and baking system includes: a heat exchange housing, a heating chamber is formed in the heat exchange housing, the heat exchange housing is provided with a smoke inlet and a smoke outlet distributed along a first direction, and the smoke inlet and the smoke outlet are respectively communicated with the heating chamber; a heating pipeline, the heating pipeline includes a plurality of first pipe segments located in the heating chamber, the plurality of first pipe segments are spaced apart along a second direction, and a heat exchange gap penetrating along the first direction is formed between adjacent two of the first pipe segments, and at least one of the heat exchange gaps is provided with an eddy current generating part, and the extending direction of the eddy current generating part forms an angle with the first direction.

[0006] According to the heat exchange structure of the gas steaming and baking system of the embodiment of the utility model, gas can be used as an energy source to realize the steaming or baking function of the gas steaming and baking system, and the flue gas can exchange heat with the heating pipeline in the heating chamber to steam or bake food. Moreover, by arranging an eddy current generating part in the heat exchange gap, the flue gas can generate eddy currents when flowing to the position where the eddy current generating part is located, effectively improving the heat exchange efficiency, shortening the cooking time, and being beneficial to improving the user satisfaction.

[0007] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, the included angle between the extending direction of the eddy current generating portion and the first direction is A, and it satisfies: 15° ≤ A ≤ 45°.

[0008] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, one eddy current generating portion is provided in the heat exchange gap; wherein, the included angle between the extending direction of the eddy current generating portion and the first direction is less than or equal to the included angle between the extending direction of the eddy current generating portion and the second direction.

[0009] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, two eddy current generating portions are provided in the heat exchange gap; wherein, the included angle between the extending direction of the eddy current generating portion and the first direction is less than the included angle between the extending direction of the eddy current generating portion and the second direction.

[0010] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, the two eddy current generating portions are symmetrically distributed with respect to the first direction at the heat exchange gap.

[0011] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, the length of the eddy current generating portion is L, and it satisfies: 9.5 mm ≤ L ≤ 10.5 mm.

[0012] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, multiple first pipe segments distributed along the second direction are taken as a group, the first pipe segments are distributed in multiple groups, and the multiple groups of first pipe segments are spaced apart along the first direction; wherein, between adjacent two groups of first pipe segments, an eddy current generating portion is provided between any two of the first pipe segments in at least one group of first pipe segments.

[0013] For the heat exchange structure of the gas steam baking system according to some embodiments of the present utility model, the number of the first pipe segments distributed along the second direction is odd, and the eddy current generating portions between the multiple first pipe segments are symmetrically distributed with respect to the one first pipe segment located in the middlemost.

[0014] The present utility model also proposes a gas steam baking system.

[0015] For the gas steam baking system according to an embodiment of the present utility model, it includes a burner, a steam oven, and the heat exchange structure of the gas steam baking system as described in any one of the above, the burner is communicated with a gas pipeline, the heat exchange structure is installed above the burner, the smoke inlet is open towards the burner, and the inlet end of the heating pipeline is communicated with a water source and the outlet end is communicated into the steam oven, and the flue gas at the smoke outlet is adapted to selectively enter the steam oven.

[0016] According to some embodiments of the present utility model, the gas steaming and roasting system further includes a gas stove, which is integrally arranged with the burner and the steam oven, and the gas pipeline is also connected to the gas stove to selectively supply gas to the gas stove.

[0017] The heat exchange structure of the gas steaming and roasting system and the above-mentioned gas steaming and roasting system has the same advantages as the prior art, which will not be elaborated here.

[0018] Some additional aspects and advantages of the present utility model will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 is a schematic diagram of the gas steaming and roasting system according to an embodiment of the present utility model;

[0021] Figure 2 is a partial schematic diagram of the gas steaming and roasting system according to an embodiment of the present utility model;

[0022] Figure 3 is a partial cross-sectional view of the gas steaming and roasting system according to an embodiment of the present utility model;

[0023] Figure 4 is a schematic structural diagram of the heating pipeline according to an embodiment of the present utility model Figure 1 ;

[0024] Figure 5 is a schematic structural diagram of the heating pipeline according to an embodiment of the present utility model Figure 2 ;

[0025] Figure 6 is a schematic structural diagram of the heating pipeline according to an embodiment of the present utility model Figure 3 ;

[0026] Figure 7 is a schematic structural diagram of the heating pipeline according to an embodiment of the present utility model Figure 4 .

[0027] Reference numerals:

[0028] The heat exchange structure 100 of the gas steaming and roasting system, the gas steaming and roasting system 200,

[0029] The heat exchange housing 1, the heating chamber 11, the smoke inlet 12, the smoke outlet 13, the heating pipeline 2, the first pipe section 21, the heat exchange gap 22, the eddy current generating part 23,

[0030] Burner 201, steam oven 202, gas pipeline 203, gas stove 204, air inlet 205, water pump 206, blower 207, valve 208, steering valve 209. Detailed implementation

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the 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 with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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 of the present invention. 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 invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The following reference Figures 1-7 Describe the heat exchange structure 100 of the gas steam roasting system according to the embodiments of the present invention. It can use gas as an energy source to realize the steaming or roasting function of the gas steam roasting system 200, and enable the flue gas to exchange heat with the heating pipeline 2 in the heating cavity 11 to steam or roast food. Moreover, by arranging a vortex generating part 23 in the heat exchange gap 22, the flue gas can generate a vortex when flowing to the position where the vortex generating part 23 is located, effectively improving the heat exchange efficiency, shortening the cooking time, and being beneficial to improving user satisfaction.

[0035] AsFigures 1-7 As shown in Figures 1-7 , the heat exchange structure 100 of a gas steaming and baking system according to an embodiment of the present invention includes a heat exchange housing 1 and a heating pipeline 2.

[0036] A heating chamber 11 is formed inside the heat exchange housing 1. The heat exchange housing 1 is provided with a smoke inlet 12 and a smoke outlet 13 distributed along a first direction, and the smoke inlet 12 and the smoke outlet 13 are respectively communicated with the heating chamber 11.

[0037] Specifically, as Figures 2-3 shown in Figures 2-3 , the gas steaming and baking system 200 uses gas as an energy source to steam or bake food, realizing the steaming or baking function of the gas steaming and baking system 200. Among them, smoke is generated during the combustion of gas. A heat exchange housing 1 is provided in the heat exchange structure 100 of the gas steaming and baking system. The heat exchange housing 1 is used to provide a heat exchange space for the smoke, so that a heating chamber 11 is formed inside the heat exchange housing 1, that is, the smoke can exchange heat with other components inside the heat exchange housing 1 in the heating chamber 11 to steam or bake food, realizing the steaming or baking function of the gas steaming and baking system 200.

[0038] At the same time, a smoke inlet 12 and a smoke outlet 13 are provided on the heat exchange housing 1. The smoke inlet 12 is used to allow the smoke to enter the interior of the heat exchange housing 1 therefrom, and the smoke outlet 13 is used to allow the smoke inside the heat exchange housing 1 to be discharged therefrom. The smoke inlet 12 and the smoke outlet 13 are respectively communicated with the heating chamber 11, that is, the smoke can enter the heating chamber 11 from the smoke inlet 12, exchange heat with other components in the heating chamber 11, and then be discharged from the smoke outlet 13. Moreover, the smoke inlet 12 and the smoke outlet 13 are distributed along the first direction, that is, the smoke inlet 12 and the smoke outlet 13 can be relatively distributed at both ends of the heat exchange housing 1 along the first direction, so as to facilitate the flow of the smoke from the smoke inlet 12 to the smoke outlet 13 and prevent the smoke from flowing back, improving the heat exchange efficiency, and further improving the overall efficiency of the heat exchange structure 100 of the gas steaming and baking system. Among them, the first direction can be the Figures 4-7 up and down direction shown in Figures 4-7 .

[0039] The heating pipeline 2 includes a plurality of first pipe segments 21 located in the heating chamber 11. The plurality of first pipe segments 21 are spaced apart along a second direction, and a heat exchange gap 22 penetrating along the first direction is formed between two adjacent first pipe segments 21. At least one heat exchange gap 22 is provided with a vortex generating part 23, and the extending direction of the vortex generating part 23 forms an angle with the first direction.

[0040] Specifically, the heating pipeline 2 is used to exchange heat with the flue gas to steam or bake food, so that the heating pipeline 2 includes a plurality of first pipe segments 21, that is, the number of the first pipe segments 21 provided can be two, three or more. The plurality of first pipe segments 21 can exchange heat with the flue gas simultaneously to improve the heat exchange efficiency. And all the plurality of first pipe segments 21 are arranged in the heating cavity 11, that is, all the plurality of first pipe segments 21 can be arranged on the flow path of the flue gas, so as to facilitate the flue gas to exchange heat with the plurality of first pipe segments 21 simultaneously. At the same time, all the plurality of first pipe segments 21 are spaced apart, which can increase the heat exchange area between the plurality of first pipe segments 21 and the flue gas and improve the heat exchange efficiency. And the plurality of first pipe segments 21 are spaced along the second direction, so that the plurality of first pipe segments 21 are equidistant from the smoke inlet 12 and also equidistant from the smoke outlet 13, so that the plurality of first pipe segments 21 can exchange heat with the flue gas evenly, and then the food can be heated evenly. Wherein, the second direction can be Figures 4-7 the left-right direction shown in Figures 4-7 , and the second direction is perpendicular to the first direction.

[0041] In addition, a heat exchange gap 22 is formed between two adjacent first pipe segments 21. The heat exchange gap 22 is used to allow the flue gas to flow here and exchange heat with the two adjacent first pipe segments 21 simultaneously here, which can improve the heat exchange efficiency. And the heat exchange gap 22 extends along the first direction, that is, the extension direction of the heat exchange gap 22 is the same as the direction of the connection line between the smoke inlet 12 and the smoke outlet 13, so that the flue gas can exchange heat with the two adjacent first pipe segments 21 simultaneously during the process of flowing from the smoke inlet 12 to the smoke outlet 13, which can further improve the heat exchange efficiency. And, a vortex generating part 23 is arranged in at least one heat exchange gap 22. The vortex generating part 23 is used to allow the flue gas to form a vortex here to improve the heat exchange efficiency. The extension direction of the vortex generating part 23 forms an angle with the first direction, that is, the vortex generating part 23 can be arranged obliquely relative to the first direction, so that the flue gas can form a vortex at the vortex generating part 23 during the process of flowing from the smoke inlet 12 to the smoke outlet 13 to strengthen the heat exchange effect and effectively improve the heat exchange efficiency.

[0042] Thus, by forming the heating cavity 11 in the heat exchange housing 1 to provide a heat exchange space for the flue gas, and connecting the heating cavity 11 with the smoke inlet 12 and the smoke outlet 13 simultaneously, the flue gas can enter the heating cavity 11 from the smoke inlet 12, exchange heat with the heating pipeline 2 in the heating cavity 11, and then be discharged from the smoke outlet 13. And, the smoke inlet 12 and the smoke outlet 13 are distributed along the first direction, the plurality of first pipe segments 21 in the heating pipeline 2 are spaced along the second direction, a heat exchange gap 22 is formed between two adjacent first pipe segments 21, a vortex generating part 23 is arranged in the heat exchange gap 22, and the vortex generating part 23 is arranged obliquely relative to the first direction to improve the heat exchange efficiency.

[0043] According to the heat exchange structure 100 of the gas steaming and baking system according to an embodiment of the present utility model, gas can be used as an energy source to realize the steaming or baking function of the gas steaming and baking system 200, and the flue gas can exchange heat with the heating pipeline 2 in the heating cavity 11 to steam or bake food. Moreover, by arranging a vortex generating part 23 in the heat exchange gap 22, the flue gas can generate a vortex when flowing to the position where the vortex generating part 23 is located, effectively improving the heat exchange efficiency, shortening the cooking time, and being beneficial to improving user satisfaction.

[0044] In some embodiments, the included angle between the extending direction of the vortex generating part 23 and the first direction is A, and it satisfies: 15° ≤ A ≤ 45°.

[0045] Specifically, as Figure 6 shown, a vortex generating part 23 is arranged in the heat exchange gap 22, and the vortex generating part 23 is arranged obliquely with respect to the first direction so that the flue gas can generate a vortex when flowing to the position where the vortex generating part 23 is located, thereby improving the heat exchange efficiency. Among them, the included angle between the extending direction of the vortex generating part 23 and the first direction can be A, and A satisfies 15° ≤ A ≤ 45°, that is, A can be 25°, 30° or 35°, etc. That is to say, the included angle between the extending direction of the vortex generating part 23 and the first direction can be a certain angle, not too large or too small. If it is too large, the flow resistance of the flue gas will increase, the flow rate of the flue gas will decrease, and the heat exchange efficiency will be reduced. If it is too small, the flue gas cannot form a vortex during the flowing process, and the vortex generating part 23 will fail.

[0046] In some embodiments, there is one vortex generating part 23 in the heat exchange gap 22; among them, the included angle between the extending direction of the vortex generating part 23 and the first direction is less than or equal to the included angle between the extending direction of the vortex generating part 23 and the second direction.

[0047] Specifically, as Figures 6-7 shown, one vortex generating part 23 can be arranged in the heat exchange gap 22, and the vortex generating part 23 is arranged obliquely with respect to the first direction so that the flue gas can generate a vortex when flowing to the position where the vortex generating part 23 is located, thereby improving the heat exchange efficiency. Among them, the included angle between the extending direction of the vortex generating part 23 and the first direction is less than or equal to the included angle between the extending direction of the vortex generating part 23 and the second direction, that is, the vortex generating part 23 can be made closer to the first direction to avoid the included angle between the vortex generating part 23 and the first direction being too large, resulting in too large flow resistance of the flue gas, reducing the flow rate of the flue gas, and further reducing the heat exchange efficiency.

[0048] In some embodiments, there are two vortex generating parts 23 in the heat exchange gap 22; among them, the included angle between the extending direction of the vortex generating part 23 and the first direction is less than the included angle between the extending direction of the vortex generating part 23 and the second direction.

[0049] Specifically, as Figures 4-5 shown, two eddy current generating parts 23 can be arranged in the heat exchange gap 22, and the two eddy current generating parts 23 are both arranged obliquely with respect to the first direction, so that eddy currents can be generated when the flue gas flows to the positions where the two eddy current generating parts 23 are located, thereby improving the heat exchange efficiency. Among them, the included angle between the extending directions of the two eddy current generating parts 23 and the first direction can be made smaller than the included angle between the extending directions of the two eddy current generating parts 23 and the second direction, that is, the two eddy current generating parts 23 can be made to approach the first direction, so as to avoid too large an included angle between the two eddy current generating parts 23 and the first direction, resulting in too large a flow resistance of the flue gas, reducing the flow rate of the flue gas, and further reducing the heat exchange efficiency.

[0050] In some embodiments, the two eddy current generating parts 23 are symmetrically distributed with respect to the first direction at the heat exchange gap 22.

[0051] Specifically, two eddy current generating parts 23 can be arranged in the heat exchange gap 22 to jointly improve the heat exchange efficiency through the two eddy current generating parts 23, and the two eddy current generating parts 23 can be symmetrically distributed with respect to the first direction at the heat exchange gap 22, that is, the two eddy current generating parts 23 can be respectively inclined to both sides of the first direction, so that the flow of the flue gas at the eddy current generating parts 23 is more uniform, and the situation that the flow rate of the flue gas is too fast or too slow in a local area, resulting in a reduction in the heat exchange efficiency, is avoided.

[0052] In some embodiments, the length of the eddy current generating part 23 is L, and it satisfies: 9.5 mm ≤ L ≤ 10.5 mm.

[0053] Specifically, an eddy current generating part 23 is arranged in the heat exchange gap 22, and the eddy current generating part 23 is arranged obliquely with respect to the first direction to improve the heat exchange efficiency through the eddy current generating part 23. Among them, the length of the eddy current generating part 23 can be made L, and L satisfies 9.5 mm ≤ L ≤ 10.5 mm, that is, L can be 9.5 mm, 10 mm or 10.5 mm, etc. That is to say, the length of the eddy current generating part 23 can be a certain value, not too large or too small. If it is too large, interference will occur between the eddy current generating part 23 and the two adjacent first pipe sections 21, reducing the flow rate of the flue gas, and further reducing the heat exchange efficiency. If it is too small, eddy currents cannot be formed or the formed eddy currents are too small during the flow of the flue gas, making the eddy current generating part 23 ineffective or with poor effects.

[0054] In some embodiments, multiple first pipe sections 21 distributed along the second direction are in a group, the first pipe sections 21 are distributed in multiple groups, and the multiple groups of first pipe sections 21 are spaced apart along the first direction.

[0055] Specifically, a heating pipeline 2 is arranged in the heating cavity 11. The heating pipeline 2 is used to exchange heat with the flue gas to steam or bake food. The heating pipeline 2 includes a plurality of first pipe segments 21 spaced apart in the second direction. That is, heat can be exchanged with the flue gas simultaneously through the plurality of first pipe segments 21 spaced apart in the second direction, so as to improve the heat exchange efficiency, thereby shortening the cooking time. And the plurality of first pipe segments 21 distributed in the second direction are taken as a group, and the first pipe segments 21 are distributed in multiple groups to further increase the number of the first pipe segments 21 arranged, that is, to increase the number of the first pipe segments 21 for exchanging heat with the flue gas, and further improve the heat exchange efficiency. In addition, the multiple groups of first pipe segments 21 are spaced apart and distributed in the first direction, that is, the multiple groups of first pipe segments 21 are arranged along the flowing direction of the flue gas, so as to exchange heat with the flue gas simultaneously through the multiple groups of first pipe segments 21, and the heat exchange area between the multiple groups of first pipe segments 21 and the flue gas can be increased, thereby effectively improving the heat exchange efficiency.

[0056] Among them, in two adjacent groups of first pipe segments 21, a vortex generating part 23 is arranged between any two first pipe segments 21 in at least one group of first pipe segments 21.

[0057] That is to say, in two adjacent groups of first pipe segments 21, the vortex generating part 23 can be arranged between any two adjacent first pipe segments 21 in one group of first pipe segments 21, or the vortex generating part 23 can be arranged between any two adjacent first pipe segments 21 in both groups of first pipe segments 21, so as to realize the arrangement of the vortex generating part 23, and make the flue gas generate vortices when flowing to the position where the vortex generating part 23 is located, thus improving the heat exchange efficiency.

[0058] In some embodiments, the number of the first pipe segments 21 distributed in the second direction is odd, and the vortex generating parts 23 between the multiple first pipe segments 21 are symmetrically distributed with respect to the middle first pipe segment 21.

[0059] Specifically, in the heating cavity 11, a plurality of first pipe segments 21 are spaced apart and distributed in the second direction, and the number of the first pipe segments 21 distributed in the second direction is odd, that is, the number of the first pipe segments 21 distributed in the second direction can be three, five or more, so as to exchange heat with the flue gas simultaneously through the odd number of first pipe segments 21 distributed in the second direction to improve the heat exchange efficiency. In addition, the vortex generating parts 23 between the multiple first pipe segments 21 are symmetrically distributed with respect to the middle first pipe segment 21, that is, the number of the vortex generating parts 23 on both sides of the middle first pipe segment 21 is equal, so as to make the flow of the flue gas on both sides of the middle first pipe segment 21 more uniform, and avoid the flow rate of the flue gas being too fast or too slow in a local area, resulting in a reduction in the heat exchange efficiency.

[0060] Exemplarily, such as Figures 4-7As shown in the figure, a total of three groups of first pipe segments 21 are provided in the heating chamber 11, and each group of first pipe segments 21 includes three first pipe segments 21. That is, a total of nine first pipe segments 21 are provided in the heating chamber 11 to simultaneously exchange heat with the flue gas through the nine first pipe segments 21, thereby improving the heat exchange efficiency. Among them, the number of the first pipe segments 21 is not limited to that described in this embodiment and can be flexibly set according to specific circumstances and the size of the space.

[0061] The present utility model also proposes a gas steaming and baking system 200.

[0062] The gas steaming and baking system 200 according to an embodiment of the present utility model includes a burner 201, a steaming and baking oven 202, and the heat exchange structure 100 of the gas steaming and baking system as described in any one of the above. The burner 201 is communicated with a gas pipeline 203. The heat exchange structure 100 is installed above the burner 201. The smoke inlet 12 faces the burner 201 and is open. The inlet end of the heating pipeline 2 is communicated with a water source and the outlet end is communicated into the steaming and baking oven 202. The flue gas at the smoke outlet 13 is adapted to selectively enter the steaming and baking oven 202.

[0063] Specifically, the burner 201 is communicated with the gas pipeline 203 to supply gas to the burner 201 through the gas pipeline 203. Then, the burner 201 can burn the gas to generate flue gas for cooking food. The heat exchange structure 100 is arranged above the burner 201, which is convenient for the flue gas generated by the burner 201 to flow upward and enter the heat exchange structure 100, and exchange heat with the heating pipeline 2 in the heating chamber 11 of the heat exchange structure 100. Moreover, the smoke inlet 12 faces the burner 201 and is open, so that the flue gas generated by the burner 201 can enter the heating chamber 11 from the smoke inlet 12 and exchange heat with the heating pipeline 2 in the heating chamber 11. In addition, the inlet end of the heating pipeline 2 is communicated with the water source through a water pump 206 and the outlet end is communicated into the steaming and baking oven 202, so that the water provided by the water source can enter the heating pipeline 2 through the water pump 206 and flow in the heating pipeline 2. While the water is flowing in the heating pipeline 2, it can be heated by the flue gas outside the heating pipeline 2 to generate water vapor, and the water vapor can enter the steaming and baking oven 202 to steam the food in the steaming and baking oven 202.

[0064] Meanwhile, the flue gas at the smoke outlet 13 can selectively enter the steam oven 202, that is, the smoke outlet 13 and the steam oven 202 can be selectively connected. When the smoke outlet 13 is connected to the steam oven 202, the flue gas after heat exchange with the cold air in the heating chamber 11 and the heating pipeline 2 in the heating chamber 11 can enter the steam oven 202 to bake the food in the steam oven 202. When the smoke outlet 13 is disconnected from the steam oven 202, the flue gas at the smoke outlet 13 cannot enter the steam oven 202 to avoid the influence of the flue gas on the steaming of the food, resulting in the inability to steam the food. Among them, the connection or disconnection between the smoke outlet 13 and the steam oven 202 can be controlled by setting a diverter valve 209.

[0065] In addition, it should be noted that the burner 201 is also connected to an air inlet 205. The air inlet 205 is used to allow air to reach the burner 201 to provide oxygen for the combustion of the gas, or to flow into the heating chamber 11 for heat exchange and mixing with the flue gas, and then enter the steam oven 202 to bake the food. Meanwhile, a fan 207 can be set between the burner 201 and the air inlet 205 to accelerate the flow of air to the burner 201 and into the heating chamber 11. Alternatively, two fans 207 can also be set. One fan 207 is used to provide combustion air for the burner 201, and the other fan 207 is used to provide cold air for heat exchange with the flue gas in the heating chamber 11. By setting two fans 207, it is possible to avoid using one fan 207 for multiple functions and improve the reliability of the fan 207 operation.

[0066] In some embodiments, the gas steam baking system 200 further includes a gas stove 204. The gas stove 204 is integrally arranged with the burner 201 and the steam oven 202. The gas pipeline 203 is also connected to the gas stove 204 to selectively supply gas to the gas stove 204.

[0067] Specifically, a gas stove 204 can also be provided in the gas steaming and baking system 200, so that the gas stove 204 can be used to stir-fry food, etc. Thus, various functions of the gas steaming and baking system 200 can be realized, which is beneficial to improving user satisfaction. Moreover, by integrally arranging the gas stove 204 with the burner 201 and the steam oven 202, the space occupation can be effectively reduced, which is beneficial to the arrangement of the gas steaming and baking system 200. That is, the gas steaming and baking system 200 in the present application can be applied to an integrated stove. In addition, the gas pipeline 203 is connected to the gas stove 204 to selectively supply gas to the gas stove 204 through the gas pipeline 203. That is, when the gas stove 204 is in use, the gas pipeline 203 is connected to the gas stove 204 to supply gas to the gas stove 204 through the gas pipeline 203, so as to stir-fry food, etc. through the gas stove 204. When the gas stove 204 is not in use, the connection between the gas pipeline 203 and the gas stove 204 is disconnected, so that the gas pipeline 203 stops supplying gas to the gas stove 204, thereby improving the use safety of the gas steaming and baking system 200.

[0068] In addition, it should be noted that, as Figure 1 shown, a valve 208 can be respectively provided between the gas pipeline 203 and the gas stove 204 and the burner 201 to respectively control the on-off between the gas pipeline 203 and the gas stove 204 and the burner 201, which can effectively improve the use safety of the gas steaming and baking system 200. Moreover, the gas steaming and baking system 200 in the present application can also be applied to a stove-steam-bake cooking machine or a gas steam oven, etc.

[0069] 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" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present invention 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 purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchange structure of a gas steaming and baking system, characterized in that: include: A heat exchange shell (1), wherein a heating chamber (11) is formed in the heat exchange shell (1), and the heat exchange shell (1) is provided with a smoke inlet (12) and a smoke outlet (13) distributed along a first direction, and the smoke inlet (12) and the smoke outlet (13) are respectively connected to the heating chamber (11); A heating pipeline (2), the heating pipeline (2) comprising a plurality of first pipe sections (21) located in the heating chamber (11), the plurality of first pipe sections (21) being spaced apart and distributed along a second direction, and a heat exchange gap (22) penetrating along the first direction is formed between two adjacent first pipe sections (21), at least one of the heat exchange gaps (22) is provided with a vortex generating portion (23), and the extension direction of the vortex generating portion (23) forms an angle with the first direction.

2. The heat exchange structure of the gas steaming and baking system according to claim 1, characterized in that: The included angle between the extension direction of the eddy current generating portion (23) and the first direction is A, and satisfies: 15°≤A≤45°.

3. The heat exchange structure of the gas steaming and baking system according to claim 1, characterized in that: A vortex generating portion (23) is provided in the heat exchange gap (22); Wherein, the angle between the extension direction of the eddy current generating portion (23) and the first direction is less than or equal to the angle between the extension direction of the eddy current generating portion (23) and the second direction.

4. The heat exchange structure of the gas steaming and baking system according to claim 1, characterized in that: Two eddy current generating parts (23) are provided in the heat exchange gap (22); Wherein, the angle between the extension direction of the eddy current generating portion (23) and the first direction is smaller than the angle between the extension direction of the eddy current generating portion (23) and the second direction.

5. The heat exchange structure of the gas steaming and baking system according to claim 4, characterized in that: The two vortex generating portions (23) are symmetrically distributed at the heat exchange gap (22) relative to the first direction.

6. The heat exchange structure of the gas steaming and baking system according to claim 1, characterized in that: The length of the vortex generating portion (23) is L, and satisfies: 9.5 mm ≤ L ≤ 10.5 mm.

7. The heat exchange structure of the gas steaming and baking system according to any one of claims 1 to 6, characterized in that: A plurality of first pipe segments (21) distributed along the second direction form a group, the first pipe segments (21) are distributed in multiple groups, and the multiple groups of first pipe segments (21) are distributed at intervals along the first direction; Wherein, in two adjacent groups of the first pipe segments (21), the vortex generating portion (23) is provided between any two of the first pipe segments (21) in at least one group of the first pipe segments (21).

8. The heat exchange structure of the gas steaming and baking system according to any one of claims 1 to 6, characterized in that: An odd number of the first pipe segments (21) are distributed along the second direction, and the vortex generating parts (23) between the plurality of the first pipe segments (21) are symmetrically distributed relative to the first pipe segment (21) located in the middle.

9. A gas steaming and baking system, characterized in that: A heat exchange structure of a gas steam-bake system comprising a burner (201), a steam oven (202) and any one of claims 1 to 8, wherein the burner (201) is connected to a gas pipeline (203), the heat exchange structure is installed above the burner (201), the smoke inlet (12) is open toward the burner (201), the inlet end of the heating pipeline (2) is connected to a water source and the outlet end is connected to the steam oven (202), and the smoke at the smoke outlet (13) is suitable for selectively entering the steam oven (202).

10. The gas steaming and baking system according to claim 9, characterized in that: It also includes a gas stove (204), wherein the gas stove (204) is integrated with the burner (201) and the steam oven (202), and the gas pipeline (203) is also connected to the gas stove (204) to selectively supply gas to the gas stove (204).

Images