Heat circulation type baking device for pastry processing

Abstract

The utility model discloses a pastry processing thermal circulation type baking device which comprises an oven, a supporting net plate is arranged in the oven, a baking tray is arranged on the supporting net plate, heating wires are arranged at the top end and the bottom end in the oven, blowing pipes are arranged on the outer sides of the heating wires, and blowing assemblies matched with the blowing pipes are arranged on the oven. An air blowing refining structure is arranged between the inner side of the air blowing pipe and the heating wire, an airflow guiding piece is arranged between every two vertically adjacent supporting net plates, the section of each airflow guiding piece is triangular, an auxiliary box is arranged on one side of the outer side of the oven, and a partition plate is arranged in the auxiliary box; according to the pastry baking device, the circulation effect of airflow in the baking oven in the pastry processing process can be improved, the baking uniformity is improved, meanwhile, the pastry baking efficiency is improved, and the pastry baking efficiency is improved. Separation of water vapor in hot air flow and cyclic utilization of gas can be achieved, and meanwhile the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of pastry processing technology, and more specifically, it relates to a hot-circulation baking device for pastry processing. Background Technology

[0002] Pastries, made from flour, sugar, oil, eggs, and milk, are baked or steamed, resulting in delicate shapes and rich flavors. Western pastries, such as cakes and macarons, emphasize a light and fluffy texture, often adorned with cream and jam; Chinese pastries, such as mung bean cake and osmanthus cake, focus on a delicate sweetness, frequently filled with red bean paste or jujube paste. Whether it's crisp cookies, soft chiffon cakes, or fragrant mooncakes, pastries always evoke a sense of nostalgia for cherished memories with their sweet taste.

[0003] Many pastries require baking during processing. To improve the evenness of heating during baking, many baking equipment are equipped with a fan structure. The fan drives airflow inside the oven to improve the evenness of heat distribution. However, in existing pastry baking equipment, the fan is mainly located at the top, resulting in poor airflow guidance inside the baking equipment and the existence of many heating dead zones.

[0004] Furthermore, in existing technologies, a lot of water vapor is generated during the baking process. Existing hot circulation baking devices for pastry processing are not convenient to remove water vapor in a timely manner, and they are not convenient to recycle the heat, resulting in a large overall energy consumption. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a hot circulation baking device for pastry processing, so as to solve the technical problems mentioned in the background art, such as poor baking uniformity, poor heat utilization rate and high energy consumption in the existing hot circulation baking device for pastry processing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A pastry processing hot circulation baking device includes an oven. The oven has a supporting mesh plate inside, and a baking tray is mounted on the supporting mesh plate. Heating wires are installed at both the top and bottom of the oven's interior. Air blowing pipes are installed on the outer sides of the heating wires. An air blowing assembly is installed on the oven in conjunction with the air blowing pipes. An air blowing refinement structure is provided between the inner side of the air blowing pipe and the heating wires. An airflow guide is provided between two adjacent sets of supporting mesh plates. The airflow guide has a triangular cross-section. An auxiliary box is located on one side of the oven's exterior. A partition plate is installed inside the auxiliary box, dividing it into a water vapor separation chamber and a high-temperature gas cooling chamber. An air circulation structure is provided between the auxiliary box and the oven.

[0010] The present invention is further configured such that the air circulation structure includes an air outlet pipe, one end of which is connected to the interior of the oven, and the tail end of the air outlet pipe is provided with a water vapor separation pipe and a gas cooling pipe through a diversion pipe. The tail end of the water vapor separation pipe is connected to the water vapor separation chamber, and the tail end of the gas cooling pipe is connected to the high-temperature gas cooling chamber. Both the water vapor separation pipe and the gas cooling pipe are provided with control valves. During the baking process of the pastry, the control valve on the water vapor separation pipe can be opened and the control valve on the gas cooling pipe can be closed, so that the airflow in the oven can enter the water vapor separation chamber through the guiding action of the air outlet pipe and the water vapor separation pipe to achieve water vapor separation.

[0011] The present invention is further configured such that the air circulation structure includes a return pipe, which is connected to the input end of the blower assembly.

[0012] The present invention is further configured such that the blowing assembly includes a fan, and an air supply pipe is provided between the output end of the fan and the blowing pipe. During this process, the fan is started and used to drive the flow of air. Thus, the dry high-temperature gas after water vapor separation can flow back into the box through the return pipe, the air supply pipe and the blowing pipe. This can enhance the utilization of high temperature lifting, reduce energy consumption and improve energy saving. In the present invention, the centrifugal separator impeller can be turned on for centrifugal separation according to the needs of pastry processing.

[0013] The present invention is further configured such that the air inlet end of the fan is provided with an air inlet pipe, and the input end of the air inlet pipe is connected to the output end of the return pipe, so as to realize the recycling of gas and reduce energy consumption.

[0014] The present invention is further configured such that an installation shaft is provided inside the water vapor separation chamber, the installation shaft is mounted inside the water vapor separation chamber via bearings, and a motor is connected to the top extending outwards. A centrifugal separator impeller is provided on the installation shaft, and a guide pipe is provided inside the water vapor separation chamber to connect to the high-temperature gas cooling chamber. A one-way valve is provided inside the guide pipe. When the motor is started, the installation shaft is driven to rotate by the motor, thereby allowing the airflow entering the water vapor separation chamber to achieve centrifugal separation under the action of the centrifugal separator impeller. The separated gas can flow back to the inlet pipe through the return pipe, while the separated water liquid can flow downwards to the high-temperature gas cooling chamber through the guide pipe. The one-way valve ensures that the water liquid can only flow from top to bottom, reducing the upward evaporation of water vapor below.

[0015] The present invention is further configured such that cooling water is stored in the high-temperature gas cooling chamber, the gas cooling pipe extends into the cooling water, and an exhaust pipe is provided on the side wall of the auxiliary box in conjunction with the high-temperature gas cooling chamber. After baking is completed and before the pastry is removed, the valve on the gas cooling pipe can be opened, the water vapor separation pipe can be closed, and the operation of the heating wire can be stopped. This allows the high-temperature airflow in the oven to be transported along the exhaust pipe and the gas cooling pipe to the high-temperature gas cooling chamber and come into contact with the cooling water to achieve cooling. After cooling, the airflow is discharged from the exhaust pipe. In this way, when the oven is opened again, it is not easy to be burned by the high-temperature gas, thus improving the safety of use.

[0016] The present invention is further configured such that the air-blowing refining structure includes a mounting frame, which is disposed between the heating wire and the air-blowing pipe. A honeycomb mesh plate and a damping mesh plate are arranged sequentially from the outside to the inside of the mounting frame. When the airflow is blown out from the air-blowing pipe and flows to the heating wire, it will pass through the honeycomb mesh plate and the damping mesh plate in sequence. The airflow will achieve fine cutting under the action of the honeycomb mesh plate and the damping mesh plate, so that the airflow can be more refined when it passes through the heating wire and enters the interior of the oven, reducing the erosion of the pastry by the airflow.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a hot circulation baking device for pastry processing, which has the following beneficial effects:

[0019] 1. This utility model features heating wires at both the top and bottom of the oven interior, with air blowers on the outside of the heating wires. Additionally, a triangular airflow guide is installed inside the oven, working in conjunction with a supporting mesh plate. This design allows airflow to be directed through the air blowers and across the heating wires during baking, resulting in a more even distribution of hot air within the oven and improved baking performance. Furthermore, the airflow guide allows for better circulation of airflow between the upper and lower baking trays, further enhancing the heating effect.

[0020] 2. This utility model has an air-refining structure between the air-blowing pipe and the heating wire. The air-refining structure includes a mounting bracket, a honeycomb mesh plate, and a damping mesh plate that cooperate with each other. In this way, when the airflow blows out from the air-blowing pipe and flows to the heating wire, it will pass through the honeycomb mesh plate and the damping mesh plate in sequence. The airflow will be finely cut by the action of the honeycomb mesh plate and the damping mesh plate, so that the airflow can be more refined when it passes through the heating wire and enters the interior of the oven, reducing the erosion of the pastry by the airflow.

[0021] 3. This utility model is equipped with an auxiliary box in conjunction with the oven, allowing airflow to circulate between the oven and the auxiliary box. The top of the auxiliary box, through the cooperation of a motor, mounting shaft, and centrifugal separator impeller, separates the gas and water in the water vapor generated during the baking process, allowing the dry gas to flow back into the oven. This avoids the problem of excessive gas supply to the oven affecting the shaping and taste of the pastries. At the same time, after the pastries are baked, the high-temperature airflow in the oven can be transported to the high-temperature gas cooling chamber below the auxiliary box through the gas outlet pipe and gas cooling pipe, where it comes into contact with cooling water and is cooled and discharged. This reduces the risk of burns to operators caused by the overflow of high-temperature gas when the oven is turned on, improving the safety of use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a heat circulation baking device for pastry processing according to this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of a heat circulation baking device for pastry processing according to this utility model. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the internal structure of the auxiliary box in this utility model. Figure 1 ;

[0026] Figure 5This is a cross-sectional view of the internal structure of the auxiliary box in this utility model. Figure 2 .

[0027] In the diagram: 1. Oven; 2. Support mesh plate; 3. Baking tray; 4. Heating wire; 5. Air blower; 6. Airflow guide; 7. Auxiliary box; 8. Divider plate; 9. Water vapor separation chamber; 10. High-temperature gas cooling chamber; 11. Gas outlet pipe; 12. Water vapor separation pipe; 13. Gas cooling pipe; 14. Control valve; 15. Return pipe; 16. Fan; 17. Air supply pipe; 18. Air inlet pipe; 19. Mounting shaft; 20. Motor; 21. Centrifugal separator impeller; 22. Guide pipe; 23. One-way valve; 24. Exhaust pipe; 25. Mounting bracket; 26. Honeycomb mesh plate; 27. Damping mesh plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 A pastry processing hot circulation baking device includes an oven 1, an oven 1 with a support mesh plate 2 inside the oven 1, a baking tray 3 on the support mesh plate 2, heating wires 4 at the top and bottom of the oven 1, a blower pipe 5 on the outside of the heating wires 4, a blower assembly on the oven 1 in conjunction with the blower pipe 5, a blower refining structure between the inside of the blower pipe 5 and the heating wires 4, an airflow guide 6 between two adjacent sets of support mesh plates 2, the airflow guide 6 having a triangular cross-section, an auxiliary box 7 on one side of the oven 1, a partition plate 8 inside the auxiliary box 7, and the partition plate 8 divides the auxiliary box 7 into a water vapor separation chamber 9 and a high-temperature gas cooling chamber 10, and an air circulation structure between the auxiliary box 7 and the oven 1.

[0032] The air circulation structure includes an exhaust pipe 11, one end of which is connected to the interior of the oven 1. The tail end of the exhaust pipe 11 is connected to a water vapor separation pipe 12 and a gas cooling pipe 13 via a diverter pipe. The tail end of the water vapor separation pipe 12 is connected to a water vapor separation chamber 9, and the tail end of the gas cooling pipe 13 is connected to a high-temperature gas cooling chamber 10. Both the water vapor separation pipe 12 and the gas cooling pipe 13 are equipped with control valves 14. During the baking process of the pastry, the control valve 14 on the water vapor separation pipe 12 can be opened and the control valve 14 on the gas cooling pipe 13 can be closed, so that the airflow in the oven 1 can enter the water vapor separation chamber 9 through the drainage of the exhaust pipe 11 and the water vapor separation pipe 12, thereby achieving water vapor separation.

[0033] Furthermore, the air circulation structure also includes a return pipe 15, which is connected to the input end of the blower assembly.

[0034] Please see Figures 1-5 As one implementation of the blowing assembly: the blowing assembly includes a fan 16, and an air supply pipe 17 is provided between the output end of the fan 16 and the blowing pipe 5. During this process, the fan 16 is started and used to drive the flow of air. Thus, the dry high-temperature gas after water vapor separation can flow back into the box through the return pipe 15, the air supply pipe and the blowing pipe. This can enhance the utilization of high temperature lifting, reduce energy consumption and improve energy saving. In this utility model, the centrifugal separator impeller 21 can be turned on for centrifugal separation according to the needs of pastry processing.

[0035] Please see Figures 1-5 As one implementation of the fan 16: the fan 16 is provided with an air inlet pipe 18 at the air inlet end, and the input end of the air inlet pipe 18 is connected to the output end of the return pipe 15 to realize the recycling of gas and reduce energy consumption.

[0036] Please see Figures 1-5 As one embodiment of the water vapor separation chamber 9: A mounting shaft 19 is provided inside the water vapor separation chamber 9. The mounting shaft 19 is mounted inside the water vapor separation chamber 9 through bearings, and a motor 20 is connected to the top extending outward. A centrifugal separation impeller 21 is provided on the mounting shaft 19. A guide pipe 22 is provided inside the water vapor separation chamber 9 to connect to the high-temperature gas cooling chamber 10. A one-way valve 23 is provided inside the guide pipe 22. When the motor 20 is started, the mounting shaft 19 is driven to rotate the centrifugal separation impeller 21, so that the airflow entering the water vapor separation chamber 9 can be centrifugally separated by the action of the centrifugal separation impeller 21. The separated gas can be returned to the inlet pipe through the return pipe 15, while the separated water liquid can flow downward through the guide pipe 22 into the high-temperature gas cooling chamber 10. The one-way valve 23 can ensure that the water liquid can only flow from top to bottom, reducing the upward evaporation of water vapor below.

[0037] Please see Figures 1-5 As one embodiment of the high-temperature gas cooling chamber 10: the high-temperature gas cooling chamber 10 stores cooling water, and the gas cooling pipe 13 extends into the cooling water. The auxiliary box 7 is equipped with an exhaust pipe 24 on its side wall in conjunction with the high-temperature gas cooling chamber 10. After baking is completed, before taking out the pastry, the valve on the gas cooling pipe 13 can be opened, the water vapor separation pipe 12 can be closed, and the operation of the heating wire 4 can be stopped. This allows the high-temperature airflow in the oven 1 to be transported along the exhaust pipe 11 and the gas cooling pipe 13 into the high-temperature gas cooling chamber 10 and come into contact with the cooling water to achieve cooling. After cooling, the airflow is discharged from the exhaust pipe 24. In this way, when the oven 1 is opened again, it is not easy to be burned by the high-temperature gas, thus improving the safety of use.

[0038] Please see Figures 1-5 As one implementation of the air-blowing refinement structure: The air-blowing refinement structure includes a mounting frame 25, which is disposed between the heating wire 4 and the air-blowing pipe 5. A honeycomb mesh plate 26 and a damping mesh plate 27 are arranged sequentially from the outside to the inside on the mounting frame 25. When the airflow is blown out from the air-blowing pipe 5 and flows to the heating wire 4, it will pass through the honeycomb mesh plate 26 and the damping mesh plate 27 in sequence. The airflow will achieve fine cutting under the action of the honeycomb mesh plate 26 and the damping mesh plate 27, so that the airflow can be finer when it passes through the heating wire 4 and enters the interior of the oven 1, reducing the erosion of the pastry by the airflow.

[0039] In summary:

[0040] This invention features heating wires 4 at both the top and bottom of the oven 1, and air blowers 5 on the outside of the heating wires 4. Additionally, a triangular airflow guide 6 is installed inside the oven 1 in conjunction with a supporting mesh plate 2. This allows airflow to be directed through the air blowers 5 and across the heating wires 4 during baking, resulting in a more even distribution of hot air within the oven 1 and improved baking performance. Furthermore, the airflow guide 6 facilitates better circulation of airflow between the upper and lower baking trays 3, further enhancing the heating effect.

[0041] This invention features an air-refining structure between the air-blowing pipe 5 and the heating wire 4. The air-refining structure includes a mounting bracket 25, a honeycomb mesh plate 26, and a damping mesh plate 27 that cooperate with each other. In this way, when the airflow blows out from the air-blowing pipe 5 and flows to the heating wire 4, it will pass through the honeycomb mesh plate 26 and the damping mesh plate 27 in sequence. The airflow will be finely cut by the action of the honeycomb mesh plate 26 and the damping mesh plate 27, so that the airflow can be finer when it passes through the heating wire 4 and enters the interior of the oven 1, reducing the erosion of the pastry by the airflow.

[0042] This utility model is equipped with an auxiliary box 7 in conjunction with the oven 1, allowing airflow to circulate between the oven 1 and the auxiliary box 7. The top of the auxiliary box 7 can separate the gas and water in the water vapor generated during the baking process through the cooperation of the motor 20, the mounting shaft 19, and the centrifugal separator impeller 21, so that the dry gas can flow back into the oven 1, avoiding the impact of excessive gas supply in the oven 1 on the shaping and taste of the pastries. At the same time, after the pastries are baked, the high-temperature airflow in the oven 1 can be transported to the high-temperature gas cooling chamber 10 below the auxiliary box 7 through the gas outlet pipe 11 and the gas cooling pipe 13, where it comes into contact with the cooling water to achieve cooling and discharge. This can reduce the risk of burns to the operator caused by the overflow of high-temperature gas when the oven 1 is turned on, and improve the safety of use.

[0043] This utility model can install automatic pressure relief valves, gas replenishment valves, and other structures at appropriate positions on the oven 1 to balance the internal and external air pressure of the oven. The installation and operating principles of the above structures are existing known technologies, and this utility model will not elaborate on them.

[0044] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0045] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here.

[0046] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

[0047] If any of the technical solutions mentioned above involve a synchronous belt drive structure, and there is no specific structure, they are all existing technologies involving the combination of synchronous belt and synchronous pulley. The connection between the synchronous belt and the shaft structure is a known technology and will not be elaborated upon in this utility model.

[0048] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here.

Claims

1. A heat circulation baking device for pastry processing, comprising an oven (1), wherein a supporting wire mesh plate (2) is provided inside the oven (1), and a baking tray (3) is provided on the supporting wire mesh plate (2), characterized in that: Heating wires (4) are provided at the top and bottom of the oven (1). A blower pipe (5) is provided on the outside of the heating wires (4). A blower assembly is provided on the oven (1) in conjunction with the blower pipe (5). A blower refining structure is provided between the inside of the blower pipe (5) and the heating wires (4). An airflow guide (6) is provided between the two adjacent sets of support mesh plates (2). The airflow guide (6) has a triangular cross section. An auxiliary box (7) is provided on one side of the oven (1). A partition plate (8) is provided inside the auxiliary box (7). The partition plate (8) divides the auxiliary box (7) into a water vapor separation chamber (9) and a high-temperature gas cooling chamber (10). An air circulation structure is provided between the auxiliary box (7) and the oven (1).

2. The pastry processing hot circulation baking device according to claim 1, characterized in that: The gas circulation structure includes an exhaust pipe (11), one end of which is connected to the interior of the oven (1), and the tail end of the exhaust pipe (11) is provided with a water vapor separation pipe (12) and a gas cooling pipe (13) through a diverter pipe. The tail end of the water vapor separation pipe (12) is connected to the water vapor separation chamber (9), and the tail end of the gas cooling pipe (13) is connected to the high temperature gas cooling chamber (10). Both the water vapor separation pipe (12) and the gas cooling pipe (13) are provided with control valves (14).

3. The pastry processing hot circulation baking device according to claim 2, characterized in that: The air circulation structure also includes a return pipe (15), which is connected to the input end of the blower assembly.

4. The pastry processing hot circulation baking device according to claim 3, characterized in that: The blowing assembly includes a fan (16), and an air supply pipe (17) is provided between the output end of the fan (16) and the blowing pipe (5).

5. The pastry processing hot circulation baking apparatus according to claim 4, characterized in that: The fan (16) is provided with an air inlet pipe (18) at its air inlet end, and the input end of the air inlet pipe (18) is connected to the output end of the return pipe (15).

6. The pastry processing hot circulation baking device according to claim 2, characterized in that: An installation shaft (19) is provided inside the water vapor separation chamber (9). The installation shaft (19) is installed inside the water vapor separation chamber (9) through a bearing, and a motor (20) is provided on the top extending outward. A centrifugal separation impeller (21) is provided on the installation shaft (19). A guide pipe (22) is provided inside the water vapor separation chamber (9) and connected to the high temperature gas cooling chamber (10). A one-way valve (23) is provided inside the guide pipe (22).

7. The pastry processing hot circulation baking device according to claim 2, characterized in that: The high-temperature gas cooling chamber (10) stores cooling water, the gas cooling pipe (13) extends into the cooling water, and the auxiliary box (7) is provided with an exhaust pipe (24) on its side wall in conjunction with the high-temperature gas cooling chamber (10).

8. The pastry processing hot circulation baking apparatus according to claim 1, characterized in that: The air-blowing refinement structure includes a mounting bracket (25), which is disposed between the heating wire (4) and the air-blowing pipe (5). A honeycomb mesh plate (26) and a damping mesh plate (27) are arranged sequentially from the outside to the inside on the mounting bracket (25).

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