Open duck oven with thermal cycle device

Abstract

The utility model embodiment provides a kind of open duck oven with thermal cycle device, comprising: furnace body, furnace body includes furnace wall, and furnace wall is enclosed and is heated chamber of roasting food;Furnace wall is provided with open furnace mouth, and open furnace mouth is provided with thermal cycle device, and thermal cycle device changes the airflow direction in furnace body to the predetermined direction circulation;Thermal cycle device includes flow guide component, and the airflow passage that makes heat with airflow circulation is formed in flow guide component;Flow guide component is provided with first air outlet at the top of open furnace mouth, and first air outlet is communicated with airflow passage, and the air outlet direction of first air outlet extends towards the bottom direction of open furnace mouth;Thermal cycle device is provided with air inlet at the bottom of open furnace mouth, and air inlet is communicated with airflow passage.The utility model embodiment is provided with thermal cycle device inside open furnace mouth effectively utilizes the heat of the oven mouth place of the oven secondary circulation utilization, prevents inside and outside temperature exchange, improves heat utilization rate, reaches the effect of energy saving and furnace temperature uniformity.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically to an open-type roast duck oven with a heat circulation device. Background Technology

[0002] This section introduces background technology that may be related to various aspects of the embodiments of this utility model, which is believed to provide useful background information to help readers better understand the various aspects of the embodiments of this utility model. Therefore, it is understood that the description in this section is for the above purposes and does not constitute an admission of the prior art.

[0003] Roast duck is a famous Chinese delicacy. Currently, roasting ducks in my country generally uses the traditional hanging oven method. The duck is hung on a rack and heated by burning fruitwood or gas inside the oven opening. The natural heat radiation from the heat source raises the temperature inside the oven, and the heat is transferred to the duck inside, allowing it to cook through over a long period. However, because the heat source is in a fixed position, the heated air is relatively light, resulting in a high temperature at the top and a low temperature at the bottom of the oven, and a large temperature difference between the front and back of the heat source. This can easily lead to uneven heating of the duck inside the oven.

[0004] During the roasting process, to ensure even heating and prevent uneven temperatures from affecting the taste, the roaster needs to judge the doneness by the color of different parts of the duck. Additionally, staff need to constantly move the ducks to ensure even heating. This traditional roasting process is time-consuming and labor-intensive, requiring skilled and experienced roasters. Furthermore, because most duck ovens are open with exposed openings, most of the heat from the upper part of the oven escapes through the openings and is absorbed by the exhaust pipes, resulting in low energy efficiency and wasted heat, which is detrimental to energy conservation and emission reduction. Summary of the Invention

[0005] The problem to be solved by this utility model embodiment is how to provide an open-type roast duck oven with a heat circulation device.

[0006] To address the shortcomings of existing technologies, this utility model provides an open-type roast duck oven with a heat circulation device, which can effectively circulate the heat inside the oven.

[0007] In a first aspect, this utility model embodiment provides an open-type roast duck oven with a heat circulation device, comprising:

[0008] The furnace body includes furnace walls that enclose a heating chamber for baking food;

[0009] An open furnace opening is provided on the furnace wall, and a heat circulation device is provided at the open furnace opening. The heat circulation device changes the airflow direction inside the furnace to a predetermined direction for circulation.

[0010] The heat circulation device includes a flow guiding component, within which an airflow channel is formed to allow heat to circulate with the airflow.

[0011] The flow guiding component is provided with a first air outlet at the top of the open furnace opening, the first air outlet is connected to the airflow channel, and the air outlet direction of the first air outlet extends toward the bottom of the open furnace opening; the heat circulation device is provided with an air inlet at the bottom of the open furnace opening, and the air inlet is connected to the airflow channel.

[0012] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, the heat circulation device further includes a flow exchange device disposed on the flow guide component, the flow exchange device altering the airflow circulation within the airflow channel.

[0013] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, the air exchange device is located at the air inlet or inside the air guide component.

[0014] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, the flow guiding component includes a first circulation channel and a second circulation channel disposed on both sides of the open oven opening.

[0015] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, the tops of the first circulation channel and the second circulation channel are connected.

[0016] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, the first air outlet is further provided with an air outlet guide plate to guide the air outlet direction of the first air outlet to extend towards the bottom of the open oven opening.

[0017] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, a heating mechanism is further included, which is disposed at the air inlet or within the air guide component.

[0018] In some other embodiments of the open-type roast duck oven with a heat circulation device described in this specification, an air inlet baffle is provided at the air inlet to restrict cold air from entering the air inlet from the outside of the bottom of the open oven opening.

[0019] In some other embodiments of the open-type roast duck oven with heat circulation device described in this specification, an airflow guide plate is provided on the top of the oven body, and there is an airflow guide space between the airflow guide plate and the top wall of the oven body. An airflow channel is formed in the guide component and communicates with the guide space.

[0020] A gap is reserved between the edge of the airflow guide plate and the inner wall of the furnace body to allow airflow to pass through. The airflow in the airflow guide space flows along the inner wall of the furnace body to the bottom of the furnace body through the gap.

[0021] In some other embodiments of the open-type roast duck oven with heat circulation device described in this specification, the air guide component extends to the top of the oven body, and a second air outlet is reserved between the air guide component and the inner wall of the oven body for airflow to pass through. The airflow in the airflow channel flows along the inner wall of the oven body to the bottom of the oven body through the second air outlet.

[0022] As can be seen from the above technical solution, the open-type roast duck oven with a heat circulation device provided in this utility model embodiment effectively utilizes the heat discharged from the oven opening for secondary recycling through the air curtain formed by the heat circulation device at the open oven opening, preventing internal and external temperature exchange, improving heat utilization efficiency, and achieving energy saving and uniform oven temperature. This utility model embodiment can not only be applied to roast duck ovens, but also to open-type ovens such as chicken ovens and pizza ovens. This utility model embodiment can reduce heat loss, correspondingly saving energy consumption, and reducing exhaust emissions generated after the oven consumes fuel, thus achieving energy saving and reducing air pollution. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an open-type roast duck oven with a heat circulation device in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of an open-type roast duck oven with a heat circulation device in use, according to one embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the circulation structure of an open-type roast duck oven with a heat circulation device in another embodiment of this utility model;

[0027] Figure 4 This is a side view of the heat circulation ring device of an open-type roast duck oven with a heat circulation device in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of an open-type roast duck oven with a heat circulation device in one embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of an open-type roast duck oven with a heat circulation device in one embodiment of the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] like Figures 1 to 4 As shown in the figure, an open-type roast duck oven with a heat circulation device provided in this embodiment of the present invention includes: an oven body 1, the oven body including an oven wall, the oven wall surrounding a heating chamber 100 for roasting food; an open oven opening 110 provided on the oven wall, a heat circulation device 2 provided at the open oven opening 110, the heat circulation device 2 changing the airflow direction in the oven body 1 to circulate in a predetermined direction; the heat circulation device 2 includes a flow guiding component 20, the flow guiding component 20 forming an airflow channel 200 that allows heat to circulate with the airflow; The airflow guiding component 20 is provided with a first air outlet 210 at the top of the open oven opening 110. The first air outlet 210 is connected to the airflow channel 200, and the air outlet direction of the first air outlet 210 extends towards the bottom of the open oven opening 110. The heat circulation device 2 is provided with an air inlet 230 at the bottom of the open oven opening 110. The air inlet 230 is connected to the airflow channel 200. The heat circulation device for an open oven provided in the present invention will now be described in detail.

[0032] like Figures 1 to 4As shown in this embodiment of the invention, the heat circulation device 2 further includes a flow exchange device 22 disposed on the flow guide component 20. The flow exchange device 22 alters the airflow circulation within the airflow channel 200. The flow exchange device 22 may be a circulating fan, which is connected to a motor via a rotating shaft. The flow exchange device 22 may be disposed at the air inlet or within the flow guide component, depending on actual needs. Two or more flow exchange devices may be disposed. The motor is vertically disposed outside the furnace body 1. When the flow exchange device 22 is in operation, it draws in air from the air inlet 230 and pressurizes it, causing the pressurized air to pass through the flow guide component 20 and be discharged from the first air outlet 210. An air curtain is formed at the first air outlet 210 toward the bottom of the open furnace opening 110. During operation, the heat circulation device 2 creates a negative pressure zone between the air inlet 230 and the first air outlet 210. This causes the hot air inside the furnace body 1 to change direction from the portion overflowing from the top of the open furnace opening 110, circulating back to the air inlet 230 and being re-drawn in by the exchange device 22 of the heat circulation device 2. This continuous circulation effectively prevents the hot air inside the furnace body 1 from overflowing through the top of the open furnace opening 110. This isolates the high temperature inside the furnace from the ambient temperature outside, preventing heat from convection between the furnace interior and exterior, thus achieving energy saving, power conservation, and emission reduction.

[0033] like Figures 1 to 4 As shown in this embodiment of the invention, in order to maximize the ventilation volume of the flow guiding component 20, the flow guiding component 20 includes a first circulation channel 201 and a second circulation channel 202 disposed on both sides of the open furnace opening 110. The tops of the first circulation channel 201 and the second circulation channel 202 are connected.

[0034] like Figures 1 to 5 As shown in this embodiment of the present invention, in order to maximize the heat recycling rate, the first air outlet 210 is also provided with an air outlet guide plate 211 to guide the air outlet direction of the first air outlet 210 to extend towards the bottom of the open furnace opening 110.

[0035] like Figures 2-5As shown, the open-type roast duck oven with a heat circulation device provided in this embodiment of the utility model also includes a heating mechanism 4, which is disposed at the air inlet 230. The heating mechanism 4 can be an electric furnace. The electric furnace heats the cool air drawn in from the air inlet 230. The heating mechanism 4 can also be a gas, electric, oil, or wood / charcoal furnace. When the heating mechanism 4 is used for heating, it can be placed inside the guide component. The air in the oven body 1 and the air discharged from the first air outlet 210 are circulated through the heating mechanism 4 to the air inlet 230, and then re-drawn in by the exchange device 22 of the heat circulation device 2. In order to effectively prevent the heat circulation device 2 from drawing in too much cold air from outside the open oven opening 110 during operation, an air inlet baffle 231 is also provided at the air inlet 230. The air inlet baffle 231 is used to restrict the entry of cold air from the bottom outside the open oven opening 110 into the air inlet 230.

[0036] like Figures 2-5 As shown, in one embodiment of this utility model, in order to effectively increase the uniformity of heating food inside the oven body 1, an airflow guide plate 111 is further provided on the top of the oven body 1. An airflow guide space 101 is formed between the airflow guide plate 111 and the top wall 11 of the oven body. An airflow channel 200 is formed within the guide component 20 and communicates with the airflow guide space 101. A gap 121 is reserved between the edge of the airflow guide plate 111 and the inner wall of the oven body 1 for airflow to pass through. The airflow in the airflow guide space 101 flows through the gap 121 along the inner wall of the oven body 1 towards the bottom of the oven body 1. Hot air flows from the bottom of the food upwards, baking the food 8 inside the oven body 1, effectively utilizing the heat exhausted from the oven opening for secondary recycling. This system solves the problem of uneven heating in ovens, reducing the need for frequent turning of food due to uneven heating. Simultaneously, by drawing hot air in from the inside of the oven opening and circulating it further to the bottom of the oven, it ensures even heating of the food while effectively reusing the exhausted heat, improving energy efficiency. It also results in a more uniform and easily controllable internal temperature, improving the roasting quality of roast duck and reducing the workload for roasting personnel. Furthermore, it ensures even heating of the food while effectively reusing the exhausted heat, thus improving energy efficiency.

[0037] like Figures 2-6As shown, in another embodiment of this utility model, the guide component 20 extends to the top of the oven body 1, and a second air outlet 220 is reserved between the guide component 20 and the inner wall of the oven body 1 for airflow to pass through. The airflow in the airflow channel 200 flows along the inner wall of the oven body 1 to the bottom of the oven body 1 through the second air outlet 220. The hot air in the airflow channel 200 blows towards the bottom of the oven body 1; the hot air flows directly from the bottom of the food from bottom to top, baking the food 8 inside the oven body 1. This can solve the problem of uneven heating in the oven, reduce the need to turn the food to be baked multiple times due to uneven heating; at the same time, by drawing in hot air from the inside of the oven opening, the collected hot air is further circulated and discharged to the bottom of the oven, so that the food to be baked inside the oven is heated evenly, and the discharged heat can be effectively reused, improving the utilization rate of heat energy. It can make the internal temperature of the oven uniform, the temperature is easy to control, improve the baking quality of roast duck, and reduce the labor intensity of baking personnel.

[0038] In summary, the open-type roast duck oven with a heat circulation device provided in this embodiment effectively utilizes the heat exhausted from the oven opening through a secondary circulation system formed by the heat circulation device at the open oven opening. This prevents temperature exchange between the inside and outside, improves heat utilization, and achieves energy saving and uniform oven temperature. This embodiment can be applied not only to roast duck ovens but also to open-type ovens such as chicken ovens and pizza ovens. This embodiment reduces heat loss, resulting in energy savings, and also reduces exhaust emissions from the oven after fuel consumption, thus saving energy and reducing air pollution.

[0039] Finally, it should be noted that in the description of this utility model, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal interconnected interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Numerous specific details are set forth in this specification. However, it is understood that embodiments of this utility model can be practiced without these specific details. In the description of this specification, references to terms such as “one embodiment,” “some embodiments,” “example,” “specific example,” or “some examples,” etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. Similarly, it should be understood that, in order to streamline the disclosure of this utility model and aid in the understanding of one or more aspects of the various utility models, in the above description of exemplary embodiments of this utility model, various features of the utility model are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed utility model requires more features than are expressly recited in each claim. Rather, as reflected in the claims, an aspect of the utility model lies in fewer than all the features of the single embodiment disclosed above. Therefore, the claims following the specific embodiments are hereby expressly incorporated into those specific embodiments, wherein each claim itself is a separate embodiment of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. It should be noted that, without conflict or contradiction, the embodiments in this application and the specific features, structures, materials, or characteristics described therein can be combined with each other. The present invention is not limited to any single aspect, nor to any single embodiment, nor to any combination and / or substitution of these aspects and / or embodiments. Furthermore, without contradiction, those skilled in the art can use each aspect and / or embodiment of the present invention alone or in combination with one or more other aspects and / or embodiments thereof.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An open-type roast duck oven with a heat circulation device, characterized in that, include: The furnace body includes furnace walls that enclose a heating chamber for baking food; An open furnace opening is provided on the furnace wall, and a heat circulation device is provided at the open furnace opening. The heat circulation device changes the airflow direction inside the furnace to a predetermined direction for circulation. The heat circulation device includes a flow guiding component, within which an airflow channel is formed to allow heat to circulate with the airflow. The flow guiding component is provided with a first air outlet at the top of the open furnace opening, the first air outlet is connected to the airflow channel, and the air outlet direction of the first air outlet extends toward the bottom of the open furnace opening; the heat circulation device is provided with an air inlet at the bottom of the open furnace opening, and the air inlet is connected to the airflow channel.

2. The open-type roast duck oven according to claim 1, characterized in that: The thermal circulation device also includes a flow exchange device disposed on the flow guide component, which alters the airflow circulation within the airflow channel.

3. The open-type roast duck oven according to claim 2, characterized in that: The air exchange device is located at the air inlet or inside the air guide component.

4. The open-type roast duck oven according to claim 1, characterized in that: The flow guiding component includes a first circulation channel and a second circulation channel disposed on both sides of the open furnace opening.

5. The open-type roast duck oven according to claim 4, characterized in that: The tops of the first and second circulation channels are connected.

6. The open-type roast duck oven according to claim 1, characterized in that: The first air outlet is also provided with an air outlet guide plate to guide the air outlet to extend towards the bottom of the open furnace opening.

7. The open-type roast duck oven according to claim 1, characterized in that: It also includes a heating mechanism, which is disposed at the air inlet or inside the air guide component.

8. The open-type roast duck oven according to claim 1, characterized in that: It also includes an air inlet baffle plate disposed at the air inlet, the air inlet baffle plate being used to restrict cold air from entering the air inlet from the outside of the bottom of the open furnace opening.

9. The open-type roast duck oven according to claim 1, characterized in that: It also includes an airflow guide plate disposed on the top of the furnace body, wherein there is an airflow guide space between the airflow guide plate and the top wall of the furnace body, and an airflow channel is formed in the guide component and communicates with the guide space; A gap is reserved between the edge of the airflow guide plate and the inner wall of the furnace body to allow airflow to pass through. The airflow in the airflow guide space flows along the inner wall of the furnace body to the bottom of the furnace body through the gap.

10. The open-type roast duck oven according to claim 1, characterized in that: The flow guiding component extends to the top of the furnace body, and a second air outlet is reserved between the flow guiding component and the inner wall of the furnace body for airflow to pass through. The airflow in the airflow channel flows along the inner wall of the furnace body to the bottom of the furnace body through the second air outlet.

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