Outlet smoke gathering structure of gas steaming and baking system and gas steaming and baking system

Abstract

The utility model discloses an outlet smoke gathering structure of gas steaming and baking system and gas steaming and baking system.The outlet smoke gathering structure of gas steaming and baking system comprises a smoke gathering shell, a heating cavity is formed in the smoke gathering shell, the smoke gathering shell is provided with a smoke inlet and a smoke outlet which are distributed in the first direction, and the smoke inlet and the smoke outlet are respectively communicated with the heating cavity; the heating pipeline comprises a first pipe section, the first pipe section extends into the heating cavity and is located between the smoke inlet and the smoke outlet, the first pipe section and the smoke outlet are distributed oppositely in the first direction, and smoke in the heating cavity is suitable for flowing through the peripheral wall of the first pipe section and then flowing to the smoke outlet. According to the outlet smoke gathering structure of the gas steaming and baking system, the smoke gathering shell is arranged outside the heating cavity so that smoke can be gathered, the smoke can be prevented from scattering and flowing away, the heat exchange efficiency between the smoke and the first pipe section can be improved, the first pipe section is arranged between the smoke inlet and the smoke outlet, and the heat exchange efficiency between the smoke inlet and the smoke outlet is improved. And the heat exchange efficiency between the two can be further improved.

Description

Technical Field

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

[0002] At present, the mainstream integrated cooktops mainly integrate gas stoves, range hoods and steam ovens. On the premise of a certain total power of the whole machine, it is necessary to meet the power requirements of both the steam oven and the range hood, resulting in a relatively 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 cooktop, 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, but 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 an outlet smoke collecting structure of a gas steaming and baking system, which can realize the steaming or baking function of the gas steaming and baking system, meet the needs of users, effectively improve the heat exchange efficiency, shorten the cooking time, and is conducive to improving user satisfaction.

[0005] According to the outlet smoke collecting structure of the gas steaming and baking system of the embodiment of the utility model, it includes: a smoke collecting housing, a heating chamber is formed in the smoke collecting housing, the smoke collecting 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 first pipe section, the first pipe section extends into the heating chamber and is located between the smoke inlet and the smoke outlet, the first pipe section and the smoke outlet are distributed oppositely along the first direction, and the flue gas in the heating chamber is adapted to flow through the outer peripheral wall of the first pipe section and then flow to the smoke outlet.

[0006] The outlet smoke-gathering structure of the gas steaming and roasting system according to the embodiments of the present utility model enables the flue gas to exchange heat with the first pipe section in the heating cavity by arranging the first pipe section in the heating cavity, so as to realize the steaming or roasting function of the gas steaming and roasting system, meet the user's needs, and can gather the flue gas by arranging a smoke-gathering housing outside the heating cavity to prevent the flue gas from spreading and flowing away, which can improve the heat exchange efficiency between the flue gas and the first pipe section. Moreover, by arranging the first pipe section between the smoke inlet and the smoke outlet, the heat exchange efficiency between the two can be further improved, the cooking time can be shortened, and the user satisfaction can be improved.

[0007] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, there are a plurality of smoke outlets, and the plurality of smoke outlets are spaced apart along a second direction; there are a plurality of first pipe sections, and the plurality of first pipe sections are spaced apart along the second direction and are respectively distributed in one-to-one correspondence with the plurality of smoke outlets, and the second direction is perpendicular to the first direction.

[0008] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, the plurality of first pipe sections distributed along the second direction are in a group; wherein, the first pipe sections are distributed in multiple groups, and the multiple groups of first pipe sections are spaced apart along the first direction.

[0009] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, the heating pipeline further includes a second pipe section, and the second pipe section is located between adjacent two groups of first pipe sections, and the second pipe section is staggered with the smoke outlet in the first direction.

[0010] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, there are a plurality of second pipe sections between adjacent two groups of first pipe sections, and the plurality of second pipe sections are spaced apart along the second direction, and the plurality of first pipe sections in each group are staggered with the plurality of second pipe sections in the first direction.

[0011] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, the plurality of first pipe sections and the plurality of second pipe sections are connected in series.

[0012] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, among the plurality of smoke outlets, the opening area of the smoke outlet in the middle area in the second direction is larger than the opening area of the smoke outlets in the two side areas in the second direction.

[0013] For the outlet smoke-gathering structure of the gas steaming and roasting system according to some embodiments of the present utility model, the smoke outlet is configured as a plurality of smoke holes, the plurality of smoke holes are spaced apart along a third direction, the first pipe section extends along the third direction, and the third direction is perpendicular to the first direction.

[0014] The present utility model also provides a gas steaming and baking system.

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

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

[0017] The advantages of the gas steaming and baking system and the outlet smoke collecting structure of the above gas steaming and baking system over the prior art are the same, and will not be elaborated herein.

[0018] 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 learned 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 apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a schematic structural diagram of an outlet smoke collecting structure of a gas steaming and baking system according to an embodiment of the present utility model;

[0021] Figure 2 is a sectional view of an outlet smoke collecting structure of a gas steaming and baking system according to an embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of a gas steaming and baking system according to an embodiment of the present utility model;

[0023] Figure 4 is a partial schematic diagram of a gas steaming and baking system according to an embodiment of the present utility model;

[0024] Figure 5 is a partial sectional view of a gas steaming and baking system according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] Outlet smoke collecting structure 100 of the gas steaming and baking system, gas steaming and baking system 200

[0027] The smoke collecting housing 1, the heating cavity 11, the smoke inlet 12, the smoke outlet 13, the smoke outlet holes 131, the heating pipeline 2, the first pipe section 21, the second pipe section 22,

[0028] The burner 201, the steam oven 202, the gas pipeline 203, the gas stove 204, the air inlet 205, the water pump 206, the fan 207, the valve 208, the turning valve 209. Specific embodiments

[0029] The embodiments of the present invention 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 and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, 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 drawings. They 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 thus 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.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly defined 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 internal communication of 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.

[0032] Refer to the following Figures 1 - 5Describe the outlet smoke collecting structure 100 of the gas steaming and baking system according to an embodiment of the present utility model. By arranging the first pipe section 21 in the heating cavity 11, the flue gas can exchange heat with the first pipe section 21 in the heating cavity 11 to realize the steaming or baking function of the gas steaming and baking system 200, meet the user's needs, and by arranging a smoke collecting housing 1 outside the heating cavity 11, the flue gas can be gathered to prevent the flue gas from scattering and flowing away, which can improve the heat exchange efficiency between the flue gas and the first pipe section 21. Moreover, by arranging the first pipe section 21 between the smoke inlet 12 and the smoke outlet 13, the heat exchange efficiency between the two can be further improved, shortening the cooking time and being beneficial to improving user satisfaction.

[0033] As Figures 1 - 5 shown, the outlet smoke collecting structure 100 of the gas steaming and baking system according to an embodiment of the present utility model includes: a smoke collecting housing 1 and a heating pipeline 2.

[0034] A heating cavity 11 is formed in the smoke collecting housing 1. The smoke collecting housing 1 is provided with a smoke inlet 12 and a smoke outlet 13 distributed along the first direction. The smoke inlet 12 and the smoke outlet 13 are respectively communicated with the heating cavity 11. The heating pipeline 2 includes a first pipe section 21. The first pipe section 21 extends into the heating cavity 11 and is located between the smoke inlet 12 and the smoke outlet 13. The first pipe section 21 and the smoke outlet 13 are distributed facing each other along the first direction. The flue gas in the heating cavity 11 is adapted to flow through the outer peripheral wall of the first pipe section 21 and then flow to the smoke outlet 13.

[0035] Specifically, the gas steaming and baking system 200 uses gas as energy to realize the steaming or baking function of the gas steaming and baking system 200. During the combustion of gas, flue gas will be generated. The flue gas can exchange heat with the heating pipeline 2 in the gas steaming and baking system 200 to cook food. A smoke collecting housing 1 is arranged in the outlet smoke collecting structure 100 of the gas steaming and baking system. The smoke collecting housing 1 is used to gather the flue gas to prevent the flue gas from scattering and flowing away, resulting in the inability to exchange heat with the heating pipeline 2 or reducing the heat exchange efficiency between the flue gas and the heating pipeline 2. That is, by arranging the smoke collecting housing 1, the heat exchange efficiency can be improved, and the smoke collecting housing 1 can provide a heat exchange space for the flue gas and the heating pipeline 2, so that a heating cavity 11 is formed in the smoke collecting housing 1, enabling the flue gas to exchange heat with the heating pipeline 2 in the heating cavity 11 to cook food.

[0036] At the same time, as Figures 4 - 5As shown, an inlet 12 and an outlet 13 are provided on the smoke gathering housing 1. The inlet 12 is used for allowing flue gas to enter the interior of the smoke gathering housing 1 therefrom, and the outlet 13 is used for allowing the flue gas inside the smoke gathering housing 1 to be discharged therefrom. The inlet 12 and the outlet 13 are respectively communicated with the heating chamber 11, that is, the flue gas can enter the heating chamber 11 from the inlet 12, exchange heat with the heating pipeline 2 in the heating chamber 11, and then be discharged from the outlet 13. Moreover, the inlet 12 and the outlet 13 are distributed along a first direction, that is, the inlet 12 and the outlet 13 can be relatively distributed at both ends of the smoke gathering housing 1 along the first direction, so as to facilitate the flow of the flue gas from the inlet 12 to the outlet 13 along the first direction, prevent the flue gas from flowing back, improve the heat exchange efficiency, and further improve the overall efficiency of the outlet smoke gathering structure 100 of the gas steaming and roasting system. Wherein, the first direction can be, for example Figure 1 the up-and-down direction shown in

[0037] In addition, the heating pipeline 2 is used for exchanging heat with the flue gas to cook food, so that the heating pipeline 2 includes a first pipe section 21. That is, heat exchange can be carried out between the first pipe section 21 and the flue gas to realize the heat exchange between the heating pipeline 2 and the flue gas. The first pipe section 21 is extended into the heating chamber 11 and the first pipe section 21 is arranged between the inlet 12 and the outlet 13, so that the first pipe section 21 can be close to the flue gas and the first pipe section 21 can be arranged on the flow path of the flue gas, so as to facilitate the heat exchange between the flue gas and the first pipe section 21 during the process of the flue gas flowing from the inlet 12 to the outlet 13. At the same time, the first pipe section 21 and the outlet 13 are distributed directly opposite to each other along the first direction, so that the flue gas entering from the inlet 12 can flow to the position where the first pipe section 21 is located first during the process of flowing to the outlet 13, exchange heat with the outer peripheral wall of the first pipe section 21 and then be discharged from the outlet 13, that is, the flue gas entering the heating chamber 11 from the inlet 12 can flow along the outer peripheral wall of the first pipe section 21 and then flow to the outlet 13 and be discharged from the outlet 13.

[0038] Thus, by forming the heating chamber 11 in the smoke gathering housing 1, communicating the inlet 12 and the outlet 13 on the smoke gathering housing 1 with the heating chamber 11 respectively, and extending the first pipe section 21 in the heating pipeline 2 into the heating chamber 11 and arranging it between the inlet 12 and the outlet 13, the flue gas can exchange heat with the first pipe section 21 during the process of flowing from the inlet 12 to the outlet 13, so as to realize the steaming or roasting function of the gas steaming and roasting system 200 and improve the heat exchange efficiency between the two. Moreover, the smoke gathering housing 1 can gather the flue gas to prevent the flue gas from scattering and flowing away, promote the heat exchange between the flue gas and the first pipe section 21, and further improve the heat exchange efficiency between the flue gas and the first pipe section 21.

[0039] The smoke-gathering structure 100 at the outlet of the gas steaming and baking system according to an embodiment of the present utility model enables the flue gas to exchange heat with the first pipe section 21 in the heating cavity 11 by arranging the first pipe section 21 in the heating cavity 11, so as to realize the steaming or baking function of the gas steaming and baking system 200, meet the user's needs, and gather the flue gas by arranging the smoke-gathering housing 1 outside the heating cavity 11 to prevent the flue gas from spreading and flowing away, which can improve the heat exchange efficiency between the flue gas and the first pipe section 21. Moreover, by arranging the first pipe section 21 between the smoke inlet 12 and the smoke outlet 13, the heat exchange efficiency between the two can be further improved, the cooking time can be shortened, and it is beneficial to improve the user satisfaction.

[0040] In some embodiments, there are multiple smoke outlets 13, and the multiple smoke outlets 13 are spaced apart along the second direction; there are multiple first pipe sections 21, and the multiple first pipe sections 21 are spaced apart along the second direction and are respectively distributed in one-to-one correspondence with the multiple smoke outlets 13, and the second direction is perpendicular to the first direction.

[0041] Specifically, the smoke inlet 12 and the smoke outlet 13 are distributed facing each other along the first direction. The smoke inlet 12 is used for the flue gas to enter the heating cavity 11 therefrom, and the smoke outlet 13 is used for the flue gas in the heating cavity 11 to be discharged therefrom. Multiple smoke outlets 13 can be arranged on the smoke-gathering housing 1, that is, the number of the smoke outlets 13 can be two, three or more, so as to discharge the smoke simultaneously through the multiple smoke outlets 13, which can improve the smoke discharge rate. At the same time, by distributing the multiple smoke outlets 13 along the second direction and making the first direction perpendicular to the second direction, the multiple smoke outlets 13 can be arranged facing the smoke inlet 12, so that the flue gas entering from the smoke inlet 12 can flow along the first direction to the multiple smoke outlets 13. Moreover, by spacing the multiple smoke outlets 13 apart, interference between the multiple smoke outlets 13 can be avoided, which may cause the opening area of the smoke outlet 13 to become smaller, reduce the flow rate of the flue gas, and further reduce the heat exchange efficiency. Among them, the second direction can be the front-back direction as shown in Figure 1 shown.

[0042] In addition, the first pipe section 21 is used for exchanging heat with the flue gas to cook food. The heating pipeline 2 can include multiple first pipe sections 21, that is, the number of the first pipe sections 21 can be two, three or more, so that the multiple first pipe sections 21 can exchange heat with the flue gas simultaneously to improve the heat exchange efficiency. At the same time, by spacing the multiple first pipe sections 21 apart, the heat exchange area between the multiple first pipe sections 21 and the flue gas can be increased, and the heat exchange efficiency can be improved. Moreover, by spacing the multiple first pipe sections 21 along the second direction, the multiple first pipe sections 21 can be arranged between the smoke inlet 12 and the smoke outlet 13, and the distances between the multiple first pipe sections 21 and the smoke inlet 12 are equal, and the distances between the multiple first pipe sections 21 and the smoke outlet 13 are also equal, so that the multiple first pipe sections 21 can exchange heat with the flue gas evenly, and thus the food can be heated evenly.

[0043] Furthermore, by distributing the plurality of first pipe sections 21 in one-to-one correspondence with the plurality of smoke outlets 13, the smoke flowing from the smoke inlet 12 along the first direction to the plurality of first pipe sections 21 can continue to flow along the first direction to the smoke outlet 13 corresponding to the first pipe section 21, so as to improve the reliability of smoke exhaust and further improve the heat exchange efficiency.

[0044] In some embodiments, a plurality of first pipe segments 21 distributed along the second direction are grouped together; wherein the first pipe segments 21 are distributed in a plurality of groups, and the plurality of groups of first pipe segments 21 are distributed in a spaced-apart manner along the first direction.

[0045] Specifically, the first pipe segment 21 is used to exchange heat with the flue gas to cook food, and the heating pipeline 2 includes a plurality of first pipe segments 21 spaced apart and distributed along the second direction, that is, a plurality of first pipe segments 21 spaced apart and distributed along the second direction can simultaneously exchange heat with the flue gas to improve the heat exchange efficiency, and a plurality of first pipe segments 21 distributed along the second direction are grouped together, and the first pipe segments 21 are distributed in multiple groups, that is, a plurality of groups of first pipe segments 21 can simultaneously exchange heat with the flue gas to further improve the heat exchange efficiency, and the plurality of groups of first pipe segments 21 are spaced apart and distributed along the first direction, that is, the plurality of groups of first pipe segments 21 can be arranged along the flow direction of the flue gas, and all of them are arranged between the smoke inlet 12 and the smoke outlet 13, so that the plurality of groups of first pipe segments 21 can simultaneously exchange heat with the flue gas, and the heat exchange area between the plurality of groups of first pipe segments 21 and the flue gas can be increased, thereby effectively improving the heat exchange efficiency.

[0046] In some embodiments, the heating pipeline 2 further includes a second pipe segment 22 , the second pipe segment 22 is located between two adjacent groups of first pipe segments 21 , and the second pipe segment 22 and the smoke outlet 13 are staggered in the first direction.

[0047] Specifically, the heating pipeline 2 is used to exchange heat with the flue gas, so that the heating pipeline 2 includes a first pipe section 21, that is, the heating pipeline 2 can achieve heat exchange with the flue gas through the first pipe section 21. Figure 2As shown, the heating pipeline 2 further includes a second pipe section 22. That is, the second pipe section 22 can cooperate with the first pipe section 21 to achieve heat exchange between the heating pipeline 2 and the flue gas, and can enable the first pipe section 21 and the second pipe section 22 to exchange heat with the flue gas simultaneously to improve the heat exchange efficiency. Moreover, by arranging the second pipe section 22 between two adjacent groups of the first pipe sections 21, the second pipe section 22 can also be arranged in the flow path of the flue gas. And by staggering the distribution of the second pipe section 22 and the smoke outlet 13 in the first direction, the second pipe section 22 can be arranged staggeredly with the first pipe section 21. The flow direction of the flue gas can be changed jointly by the first pipe section 21 and the second pipe section 22, so that when the flue gas flows from the smoke inlet 12 to the smoke outlet 13, it can flow through both sides of the first pipe section 21 and the second pipe section 22 in sequence, thereby strengthening the heat exchange effect between the flue gas and the first pipe section 21 and the second pipe section 22 and improving the heat exchange efficiency.

[0048] In some embodiments, there are multiple second pipe sections 22 between two adjacent groups of the first pipe sections 21, and the multiple second pipe sections 22 are spaced apart along the second direction. The multiple first pipe sections 21 in each group are staggered with the multiple second pipe sections 22 in the first direction.

[0049] Specifically, as Figure 2 shown, the heating pipeline 2 includes the first pipe section 21 and the second pipe section 22. Heat exchange can be achieved simultaneously through the first pipe section 21 and the second pipe section 22 to improve the heat exchange efficiency. And by arranging the second pipe section 22 between multiple groups of the first pipe sections 21, the second pipe section 22 can also be arranged between the smoke inlet 12 and the smoke outlet 13 to facilitate heat exchange between the second pipe section 22 and the flue gas. Multiple second pipe sections 22 can be arranged between two adjacent groups of the first pipe sections 21. That is, the number of the second pipe sections 22 arranged between two adjacent groups of the first pipe sections 21 can be two, three or more. The heat exchange efficiency can be improved by increasing the number of the second pipe sections 22 arranged.

[0050] Meanwhile, by spacing the multiple second pipe sections 22 apart along the second direction, the distances between the multiple second pipe sections 22 and the smoke inlet 12 can be made equal, and the distances between the multiple second pipe sections 22 and the smoke outlet 13 can also be made equal to make the heat exchange uniform, and the heat exchange area between the second pipe section 22 and the flue gas can be increased to effectively improve the heat exchange efficiency. Moreover, by staggering the multiple first pipe sections 21 in each group with the multiple second pipe sections 22 in the first direction, the flow direction of the flue gas can be changed by the first pipe section 21 and the second pipe section 22, so that when the flue gas flows from the smoke inlet 12 to the smoke outlet 13, it can flow through both sides of the first pipe section 21 and the second pipe section 22 in sequence, thereby strengthening the heat exchange effect between the flue gas and the first pipe section 21 and the second pipe section 22 and improving the heat exchange efficiency.

[0051] In some embodiments, the multiple first pipe sections 21 and the multiple second pipe sections 22 are connected in series.

[0052] Specifically, the heating pipeline 2 includes a plurality of first pipe segments 21 and a plurality of second pipe segments 22. Heat exchange can be carried out with the flue gas simultaneously through the plurality of first pipe segments 21 and the plurality of second pipe segments 22 to improve the heat exchange efficiency. Moreover, the plurality of first pipe segments 21 and the plurality of second pipe segments 22 can be arranged in series to make the heat at each part of the heating pipeline 2 consistent, avoid local overheating or uneven temperature, so as to uniformly heat the food. And by connecting the plurality of first pipe segments 21 and the plurality of second pipe segments 22 in series, only one inlet and one outlet of the pipeline need to be provided on the heating pipeline 2, which can simplify the structure and is beneficial to the setting of the gas steaming and baking system 200.

[0053] In some embodiments, among the plurality of smoke outlets 13, the opening area of the smoke outlet 13 in the middle region in the second direction is larger than the opening area of the smoke outlets 13 in the two side regions in the second direction.

[0054] Specifically, the smoke outlet 13 is used to discharge the flue gas in the heating cavity 11 therefrom. A plurality of smoke outlets 13 are provided on the smoke collecting housing 1, so that the plurality of smoke outlets 13 can be used together for smoke exhaust to improve the smoke exhaust rate, and then the heat exchange efficiency can be improved. And the plurality of smoke outlets 13 are distributed along the second direction, and the opening area of the smoke outlet 13 at the middle position is larger than the opening area of the smoke outlets 13 in the side regions, so as to more evenly distribute the air flow, improve the smoke exhaust efficiency, prevent the accumulation of flue gas, thereby improving the use safety of the gas steaming and baking system 200, and improving the heat exchange efficiency and shortening the cooking time.

[0055] In some embodiments, the smoke outlet 13 is configured as a plurality of smoke holes 131, and the plurality of smoke holes 131 are spaced apart along the third direction. The first pipe segment 21 extends along the third direction, and the third direction is perpendicular to the first direction.

[0056] Specifically, as Figure 2As shown, the smoke outlet 13 is used to allow the smoke in the heating chamber 11 to be discharged therefrom. By configuring the smoke outlet 13 as a plurality of smoke holes 131, the smoke can be discharged through the plurality of smoke holes 131 together, so as to improve the smoke discharge rate, and thus the heat exchange efficiency can be improved. Moreover, by arranging the plurality of smoke holes 131 at intervals in the third direction, and the third direction is perpendicular to the first direction, it can be ensured that the plurality of smoke holes 131 are all directly opposite to the smoke inlet 12, so that the smoke entering from the smoke inlet 12 can be discharged from the plurality of smoke holes 131, and interference between the plurality of smoke holes 131 can be avoided, which may cause the opening area of the smoke holes 131 to decrease, and further cause the smoke discharge efficiency to decrease. In addition, by extending the first pipe section 21 in the third direction, the extension direction of the first pipe section 21 can be the same as the distribution direction of the plurality of smoke holes 131, so that the smoke flowing through various parts of the first pipe section 21 can be discharged from the smoke holes 131 that are relatively close to it, which can further improve the smoke discharge rate and thus further improve the heat exchange efficiency. Among them, the third direction can be, for example, Figure 1 the left-right direction shown in

[0057] The present utility model also provides a gas steaming and baking system 200.

[0058] 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 outlet smoke collecting structure 100 of the gas steaming and baking system according to any one of the above. The burner 201 is communicated with a gas pipeline 203. The outlet smoke collecting 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 smoke at the smoke outlet 13 is adapted to selectively enter the steaming and baking oven 202.

[0059] Specifically, as Figure 3As shown, the burner 201 is connected to 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 outlet smoke collecting structure 100 is arranged above the burner 201, facilitating the upward flow of the flue gas generated by the combustion of the gas in the burner 201 and allowing it to enter the outlet smoke collecting structure 100, where it exchanges heat with the heating pipeline 2 in the heating cavity 11. Moreover, the smoke inlet 12 faces the burner 201 and is open, enabling the flue gas generated by the burner 201 to enter the heating cavity 11 through the smoke inlet 12 and exchange heat with the heating pipeline 2 in the heating cavity 11. Additionally, the inlet end of the heating pipeline 2 is connected to the water source through a water pump 206, and the outlet end is connected to the steam oven 202. That is, the water provided by the water source can enter the heating pipeline 2 through the water pump 206 and flow therein. 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 steam, and the steam can enter the steam oven 202 to steam the food in the steam oven 202.

[0060] Meanwhile, the flue gas at the smoke outlet 13 can selectively enter the steam oven 202, that is, the smoke outlet 13 can be selectively connected to the steam oven 202. When the smoke outlet 13 is connected to the steam oven 202, the flue gas that has exchanged heat with the heating pipeline 2 and the cold air in the heating cavity 11 in the heating cavity 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, a turning valve 209 can be set to control the connection or disconnection between the smoke outlet 13 and the steam oven 202.

[0061] Furthermore, 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 cavity 11 to exchange heat and mix with the flue gas, and then enter the steam oven 202 to bake the food. At the same time, a fan 207 can be arranged between the burner 201 and the air inlet 205 to accelerate the flow of air towards the burner 201 and into the heating cavity 11. Or, two fans 207 can also be set. One fan 207 is used to provide the air for combustion for the burner 201, and the other fan 207 is used to provide the cold air for heat exchange with the flue gas for the heating cavity 11. By setting two fans 207, it can be avoided that one fan 207 is used for multiple functions, and the reliability of the operation of the fan 207 can be improved.

[0062] In some embodiments, the gas steaming and 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.

[0063] Specifically, a gas stove 204 can also be provided in the gas steaming and baking system 200, so that food can be stir-fried through the gas stove 204. 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 installation 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, by connecting the gas pipeline 203 to the gas stove 204 to selectively supply gas to the gas stove 204 through the gas pipeline 203, when the gas stove 204 is in use, the gas pipeline 203 can be 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 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 can be disconnected to stop the gas pipeline 203 from supplying gas to the gas stove 204, so as to improve the use safety of the gas steaming and baking system 200.

[0064] And it should be noted that, as Figure 3 shown, a valve 208 can be respectively arranged 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.

[0065] 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 a suitable manner in any one or more embodiments or examples.

[0066] 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 spirits of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A smoke collecting structure at an outlet of a gas steaming and baking system, characterized in that: include: A smoke collecting shell, wherein a heating chamber is formed in the smoke collecting shell, and the smoke collecting shell 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 connected to the heating chamber; A heating pipeline, the heating pipeline includes a first pipe section, the first pipe section extends into the heating chamber and is located between the smoke inlet and the smoke outlet, the first pipe section and the smoke outlet are distributed opposite to each other along the first direction, and the smoke in the heating chamber is suitable for flowing through the outer wall of the first pipe section and then flowing to the smoke outlet.

2. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 1, characterized in that: There are multiple smoke outlets, and the multiple smoke outlets are spaced apart and distributed along the second direction; There are a plurality of the first pipe sections, and the plurality of the first pipe sections are distributed at intervals along the second direction and are respectively distributed in one-to-one correspondence with the plurality of smoke outlets, and the second direction is perpendicular to the first direction.

3. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 2, characterized in that: A plurality of the first pipe sections distributed along the second direction form a group; The first pipe segments are distributed in multiple groups, and the multiple groups of the first pipe segments are distributed at intervals along the first direction.

4. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 3, characterized in that: The heating pipeline further includes a second pipe segment, the second pipe segment is located between two adjacent groups of the first pipe segments, and the second pipe segment and the smoke outlet are staggered in the first direction.

5. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 4, characterized in that: There are multiple second pipe segments between two adjacent groups of the first pipe segments, and the multiple second pipe segments are distributed at intervals along the second direction. The multiple first pipe segments and the multiple second pipe segments in each group are staggered in the first direction.

6. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 5, characterized in that: A plurality of the first pipe sections and a plurality of the second pipe sections are arranged in series.

7. The outlet smoke collecting structure of the gas steaming and baking system according to claim 2, characterized in that: Among the plurality of smoke outlets, the opening area of ​​the smoke outlet located in the middle region in the second direction is larger than the opening area of ​​the smoke outlet located in the two side regions in the second direction.

8. The smoke collecting structure at the outlet of the gas steaming and baking system according to claim 1, characterized in that: The smoke outlet is constructed as a plurality of smoke outlet holes, and the plurality of smoke outlet holes are spaced apart and distributed along a third direction. The first pipe section extends along the third direction, and the third direction is perpendicular to the first direction.

9. A gas steaming and baking system, characterized in that: The invention comprises a burner, a steam oven and an outlet smoke collecting structure of a gas steam-bake system according to any one of claims 1 to 8, wherein the burner is connected to a gas pipeline, the outlet smoke collecting structure is installed above the burner, the smoke inlet is open toward the burner, the inlet end of the heating pipeline is connected to a water source and the outlet end is connected to the steam oven, and the smoke at the smoke outlet is suitable for selectively entering the steam oven.

10. The gas steaming and baking system according to claim 9, characterized in that: It also includes a gas stove, which is integrated 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.

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