A multi-tiered oven apparatus for precise temperature control

Abstract

The utility model relates to the technical field of oven, concretely is a kind of multi-layer oven equipment of accurate temperature control, the utility model includes box, be equipped with multiple groups of roasting cavity on the box, and the front end of box is rotatably installed with multiple groups of furnace door, and multiple groups of furnace door are respectively closed with multiple groups of oven, and fixedly connected with air intake system, air outlet system, heating assembly and fan in the box, and air intake system includes the connecting pipe one fixedly connected in the box, and the lateral wall of connecting pipe one is connected with multiple groups of hot pipe, and multiple groups of hot pipe are respectively communicated with one side of multiple groups of oven;By the hot pipe and hot pipe outlet of each roasting cavity are separately configured pneumatic ball valve, combine heating assembly and fan, form multiple independent closed loop hot air circulation passway, can according to the set temperature of each roasting cavity, the hot air on-off and flow to the roasting cavity are independently controlled, to realize the accurate temperature control of each roasting cavity.

Description

Technical Field

[0001] This utility model relates to the field of ovens, specifically a multi-layer oven device for precise temperature control. Background Technology

[0002] In the existing food processing, baking or industrial heat treatment fields, ovens are essential processing equipment, and multi-layer ovens are widely used because they can significantly improve space utilization and production efficiency.

[0003] Traditional multi-layer ovens typically use a unified heating and air supply system, with hot air circulating between multiple baking cavities. This makes it impossible to independently adjust the temperature of each individual cavity. When different foods require different baking or heating temperatures, traditional ovens cannot meet the requirements, resulting in inconsistent product quality. When one baking cavity requires a high temperature while another requires a low temperature, heat transfer occurs during the circulation of hot air, causing interference between the cavities. This results in the low-temperature cavity having a higher temperature and the high-temperature cavity losing heat, severely affecting the stability of the process and the uniformity of the products. Therefore, a multi-layer oven with precise temperature control is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer oven device with precise temperature control to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A multi-layer oven with precise temperature control includes a housing with multiple baking cavities. Multiple oven doors are rotatably installed at the front end of the housing, and the multiple oven doors are respectively closed and cooperate with the multiple baking cavities. An air inlet system, an air outlet system, a heating component, and a fan are fixedly connected inside the housing. The air inlet system includes a connecting pipe fixedly connected inside the housing. Multiple heat inlet pipes are connected to the side wall of the connecting pipe and are respectively connected to one side of the multiple baking cavities.

[0007] The air outlet system includes a connecting pipe two fixed to the box body. The side wall of the connecting pipe two is connected to and fixed with multiple sets of heat outlet pipes. The multiple sets of heat outlet pipes are respectively connected to the other side of multiple sets of ovens. Pneumatic ball valves are installed on the side walls of the multiple sets of heat inlet pipes and heat outlet pipes. The connecting pipe one is connected to the heating component. The connecting pipe two is connected to the air inlet of the fan. The air outlet of the fan is connected to the heating component.

[0008] Preferably, the multiple baking cavities are arranged in a linear array, and the bottom of the box is fixed with multiple sets of positioning feet and multiple sets of universal wheels.

[0009] Preferably, one side of the housing is provided with a side cavity, and multiple sets of electric push rods are rotatably installed in the side cavity. The output ends of the multiple sets of electric push rods are respectively rotatably installed with multiple sets of furnace doors.

[0010] Preferably, the heating assembly includes a heating box, which is fixed inside the housing. The heating box contains heating pipes, and a connecting pipe and a fan are respectively connected to both ends of the heating box.

[0011] Preferably, the box body is provided with multiple sets of outer shells, the heat inlet pipe and the heat outlet pipe are respectively connected and fixed to both sides of the outer shell, and an inner shell is fixedly connected to each of the multiple sets of outer shells. The baking cavity is located inside the inner shell, and the inner shell is provided with holes.

[0012] Preferably, the inner shell has multiple sets of baffles fixed to its sidewalls, and the baffles are located between the outer shell and the inner shell.

[0013] The beneficial effects of this utility model are:

[0014] This invention configures pneumatic ball valves for the inlet and outlet heating pipes of each baking cavity, and combines them with heating components and fans to form multiple independent closed-loop hot air circulation paths. The hot air flow and on / off of each baking cavity can be independently controlled according to the set temperature of each baking cavity, thereby achieving precise temperature control of each baking cavity. Attached Figure Description

[0015] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the box of this utility model;

[0019] Figure 4 This is a schematic diagram of the baking cavity structure of the box body of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the side cavity of this utility model;

[0021] The attached figures are labeled as follows:

[0022] 1. Oven body; 2. Baking cavity; 3. Oven door; 4. Heating assembly; 5. Heat inlet pipe; 6. Pneumatic ball valve; 7. Fan; 8. Connecting pipe one; 9. Heat outlet pipe; 10. Side cavity; 11. Electric push rod; 12. Outer shell; 13. Inner shell; 14. Baffle plate; 15. Connecting pipe two; 16. Positioning feet; 17. Casters. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A multi-layer oven device for precise temperature control. Figures 1-5 As shown, the device includes a housing 1 with multiple baking cavities 2. Multiple oven doors 3 are rotatably mounted on the front end of the housing 1. Each oven door 3 has a sealing ring and a handle. The multiple oven doors 3 are respectively sealed to the multiple baking cavities 2. The handles facilitate manual operation of the oven doors 3. An air inlet system, an air outlet system, a heating element 4, and a fan 7 are fixedly connected inside the housing 1. The fan 7 is a centrifugal fan, model RDY 63-28 / 12. The air inlet system includes a connecting pipe 8 fixedly connected inside the housing 1. Multiple heat inlet pipes 5 are connected to the side wall of the connecting pipe 8. The multiple heat inlet pipes 5 are respectively connected to one side of the multiple baking cavities 2. The heating system heats the air, and the fan 7 blows the hot air into the air inlet system, so that the hot air enters the baking cavity 2. The air in the baking cavity 2 is discharged from the air outlet system and discharged again into the heating element 4 by the fan 7 for circulating heating.

[0025] The air outlet system includes a second connecting pipe 15 fixed inside the housing 1. The side wall of the second connecting pipe 15 is connected to multiple sets of heat outlet pipes 9. The multiple sets of heat outlet pipes 9 are respectively connected to the other side of multiple sets of ovens. The side walls of the multiple sets of heat inlet pipes 5 and heat outlet pipes 9 are equipped with pneumatic ball valves 6. When a certain baking cavity 2 needs to be heated, the pneumatic ball valves 6 on its corresponding heat inlet and heat outlet pipes 9 will receive a control signal and open, allowing hot air to flow through the baking cavity 2. Otherwise, they will close, completely isolating the baking cavity 2 from the circulation system. The first connecting pipe 8 is connected to the heating component 4, the second connecting pipe 15 is connected to the air inlet of the fan 7, and the air outlet of the fan 7 is connected to the heating component 4.

[0026] Each oven cavity 2 is equipped with a separate pneumatic ball valve 6 (model ASCO8210G004 from the USA) for its inlet heating pipe 5 and outlet heating pipe 9. Each oven cavity 2 is equipped with a temperature sensor to independently control the inlet heating pipe 5 and outlet heating pipe 9. Combined with the heating component 4 and the fan 7, multiple independent closed-loop hot air circulation paths are formed. The hot air flow and on / off of each oven cavity 2 can be independently controlled according to the set temperature of each oven cavity 2, thereby achieving precise temperature control of each oven cavity 2.

[0027] When a certain baking cavity 2 does not require heating or needs to be kept at a low temperature, its corresponding pneumatic ball valve 6 can be closed to physically isolate that baking cavity 2 from the main circulation system. The high-temperature hot air from other baking cavities 2 cannot enter that baking cavity 2, effectively avoiding heat transfer and mutual interference between different temperature zones. This ensures the purity and stability of the process environment within each baking cavity 2. Users can turn on the hot air supply only to the baking cavity 2 that is in use, according to production needs. Compared with the traditional multi-layer oven's "all on at once" mode, this equipment greatly reduces unnecessary heat loss, achieves "heating on demand," and significantly reduces the energy consumption of the equipment, which is in line with the concept of green and environmentally friendly production.

[0028] This oven can perform multiple processing tasks at different temperatures simultaneously. The upper layer can be used for high-temperature baking, the middle layer for low-temperature fermentation, and the lower layer for heat preservation. This greatly expands the application range of the equipment and the flexibility of production scheduling, meeting the complex needs of modern food processing and industrial production for multiple varieties and small batches.

[0029] The air passes through the fan 7, heating element 4, connecting pipe 1 8, heat inlet pipe 5, baking cavity 2, heat outlet pipe 9, connecting pipe 2 15, and fan 7 in a closed-loop circulation design, ensuring stable hot air flow rate and temperature entering each baking cavity 2.

[0030] Multiple baking cavities 2 are arranged in a linear array, and multiple positioning feet 16 and multiple casters 17 are fixed to the bottom of the box 1.

[0031] The baking cavities 2 are arranged from top to bottom, and the space of each baking cavity 2 can be set to different thicknesses. The casters 17 facilitate the movement of the oven equipment, and the positioning feet 16 can be twisted and rotated, with the bottom abutting against the ground to position the oven.

[0032] A side cavity 10 is provided on one side of the housing 1. Multiple sets of electric push rods 11 (model LA30) are rotatably installed in the side cavity 10. The output ends of the multiple sets of electric push rods 11 are rotatably installed with multiple sets of furnace doors 3. The output ends of the electric push rods 11 can extend or retract, which can pull or push the furnace doors 3, mechanically closing and opening the doors to avoid burns to users.

[0033] The heating component 4 includes a heating box, which is fixed inside the box body 1. The heating box is equipped with a heating pipe, and the connecting pipe 8 and the fan 7 are respectively connected to the two ends of the heating box. When hot air flows through the heating box, it is rapidly heated and becomes a high-temperature medium.

[0034] The box 1 is equipped with multiple sets of outer shells 12. The heat inlet pipe 5 and the heat outlet pipe 9 are respectively connected and fixed to both sides of the outer shell 12. Each set of outer shells 12 is fixed with an inner shell 13. The baking cavity 2 is located inside the inner shell 13. The inner shell 13 has holes.

[0035] Hot air enters the outer shell 12 through the heat inlet pipe 5, and then enters the inner shell 13 through the holes to bake the objects in the baking cavity 2. The arrangement of the outer shell 12 and the inner shell 13 allows the hot air to enter the baking cavity 2 evenly.

[0036] Multiple sets of baffles 14 are fixed to the side wall of the inner shell 13. The baffles 14 are located between the outer shell 12 and the inner shell 13. The baffles 14 can suppress the flow speed of hot air and prevent air from flowing quickly between the outer shell 12 and the inner shell 13, so that the hot air is blocked by the baffles 14 and it is convenient for the hot air to enter the inner shell 13.

[0037] The working principle of the multi-layer oven device for precise temperature control provided by this utility model is as follows:

[0038] When the equipment is started and the different temperatures required for each baking cavity 2 are set, the control system (located inside the oven, which is existing technology) first starts the centrifugal fan 7 and the heating element 4. The fan 7 works, drawing air from the connecting pipe 15 of the air outlet system, pressurizing it, and blowing it towards the heating chamber. The air is heated as it flows through the electric heating element inside the heating chamber. After the hot air enters the connecting pipe 8, according to the opened start ball valve, it flows from the connecting pipe 8 through the heat inlet pipe 5 into the air duct between the outer shell 12 and the inner shell 13 of the baking cavity 2. Under the guidance of the baffle 14, the hot air is evenly distributed and forced through the holes in the wall of the inner shell 13 into the baking cavity. Inside the oven cavity 2, the items are heated efficiently and evenly from all sides. After heat exchange, the slightly cooled air is drawn out from the other side of the oven cavity 2 by the suction force of the fan 7, enters the connecting pipe 2 15 through the heat outlet pipe 9, and finally returns to the air inlet of the fan 7, completing an independent and closed loop. Each oven cavity 2 is equipped with a pneumatic ball valve 6 for its heat inlet pipe 5 and heat outlet pipe 9. Combined with the heating component 4 and the fan 7, multiple independent closed-loop hot air circulation paths are formed. The hot air flow and on / off of each oven cavity 2 can be independently controlled according to the set temperature of each oven cavity 2, thereby achieving precise temperature control of each oven cavity 2.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-layer oven device for precise temperature control, characterized in that, Includes a box body (1), on which multiple baking cavities (2) are provided. Multiple oven doors (3) are rotatably installed at the front end of the box body (1). The multiple oven doors (3) are respectively closed and cooperated with the multiple baking cavities (2). An air inlet system, an air outlet system, a heating component (4) and a fan (7) are fixedly connected inside the box body (1). The air inlet system includes a connecting pipe (8) fixedly connected inside the box body (1). Multiple heat inlet pipes (5) are connected and fixedly connected to the side wall of the connecting pipe (8). The multiple heat inlet pipes (5) are respectively connected to one side of the multiple baking cavities (2). The air outlet system includes a second connecting pipe (15) fixed inside the housing (1). The side wall of the second connecting pipe (15) is connected to a plurality of sets of heat outlet pipes (9). The plurality of sets of heat outlet pipes (9) are respectively connected to the other side of the plurality of ovens. The side walls of the plurality of sets of heat inlet pipes (5) and heat outlet pipes (9) are all equipped with pneumatic ball valves (6). The first connecting pipe (8) is connected to the heating component (4). The second connecting pipe (15) is connected to the air inlet of the fan (7). The air outlet of the fan (7) is connected to the heating component (4).

2. The multi-layer oven equipment for precise temperature control according to claim 1, characterized in that, The multiple sets of baking cavities (2) are arranged in a linear array, and the bottom of the box (1) is fixed with multiple sets of positioning feet (16) and multiple sets of universal wheels (17).

3. The multi-layer oven equipment for precise temperature control according to claim 1, characterized in that, The box body (1) has a side cavity (10) on one side, and multiple sets of electric push rods (11) are rotatably installed in the side cavity (10). The output ends of the multiple sets of electric push rods (11) are rotatably installed with multiple sets of furnace doors (3).

4. The multi-layer oven equipment for precise temperature control according to claim 1, characterized in that, The heating component (4) includes a heating box, which is fixed inside the box body (1). The heating box is equipped with a heating pipe, and the connecting pipe (8) and the fan (7) are respectively connected to the two ends of the heating box.

5. A multi-layer oven device for precise temperature control according to claim 2, characterized in that, The box (1) is provided with multiple sets of outer shells (12), and the heat inlet pipe (5) and the heat outlet pipe (9) are respectively connected and fixed to both sides of the outer shell (12). Each set of outer shells (12) is fixed with an inner shell (13). The baking cavity (2) is located inside the inner shell (13), and the inner shell (13) has holes.

6. A multi-layer oven device for precise temperature control according to claim 5, characterized in that, The inner shell (13) has multiple sets of baffles (14) fixed to its side wall, and the baffles (14) are located between the outer shell (12) and the inner shell (13).

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