Hot blast stove with good smoke exhaust effect

Abstract

The utility model provides a kind of hot blast furnace with good smoke exhaust effect, comprising: outer box, inner box is installed in outer box, the top of inner box is installed with smoke exhaust fan, the air inlet of smoke exhaust fan is communicated with inner box by smoke collection cover, the air outlet of smoke exhaust fan is connected to the outside of outer box by smoke exhaust pipe, the backboard of inner box is set as uniform wind board, hot blast cavity back seal plate is installed in the rear of uniform wind board, hot blast cavity back seal plate is enclosed with uniform wind board, inner box between and form hot blast circulation cavity, first hot blast circulation component and second hot blast circulation component are installed in the hot blast circulation cavity with side spacing, upper electric heating wire row group is installed in the top inner side of inner box, lower electric heating wire row group is installed in the top of inner box bottom, uniform wind orifice plate is installed above lower electric heating wire row group. This hot blast furnace is simple in structure, reasonable in design, has good smoke exhaust effect, and has good hot blast circulation efficiency and the uniformity of baking heat distribution.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically to a hot air furnace with good smoke extraction effect. Background Technology

[0002] Hot air ovens are an important component of baking ovens, used to provide the heat needed for baking food, and are frequently used in food processing. However, in existing technologies, some foods produce a lot of smoke during baking, and current hot air ovens struggle to remove this smoke. Furthermore, existing hot air ovens have low efficiency in hot air circulation during baking, resulting in poor baking uniformity, making it difficult to meet the requirements for baking high-end ingredients. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model proposes a hot air furnace with good smoke exhaust effect, good hot air circulation efficiency and uniform baking heat distribution.

[0004] To achieve the above technical solution, this utility model provides a hot air furnace with good smoke extraction effect, comprising: an outer casing, an inner casing installed inside the outer casing, the outer casing and the inner casing being separated by an inner support, a smoke extraction fan installed on the top of the inner casing, the air inlet of the smoke extraction fan being connected to the inner casing through a smoke extraction collection hood, the air outlet of the smoke extraction fan being connected to the outside of the outer casing through a smoke extraction pipe, the back plate of the inner casing being configured as a wind distribution plate, the wind distribution plate having multiple parallel and spaced circulating air inlets at both its upper and lower ends, and two sets of positive air inlets being provided on the wind distribution plate. A hot air cavity back sealing plate is installed behind the air distribution plate for the circulating air outlet of the inner box. The hot air cavity back sealing plate, the air distribution plate, and the inner box enclose a hot air circulation cavity. A first hot air circulation component and a second hot air circulation component are installed side by side at intervals in the hot air circulation cavity. A first annular heating wire and a second annular heating wire are respectively installed on the periphery of the first hot air circulation component and the second hot air circulation component. An upper heating wire row is installed on the inner side of the top of the inner box. A lower heating wire row is installed above the bottom of the inner box. An air distribution plate is installed above the lower heating wire row.

[0005] In the above technical solution, during actual operation, the first annular heating wire, the second annular heating wire, the upper heating wire array, and the lower heating wire array can be activated according to the actual baking requirements. After the first annular heating wire, the second annular heating wire, the upper heating wire array, and the lower heating wire array heat the air in the inner chamber and the hot air circulation chamber, the hot air that has exchanged heat with the food in the inner chamber is drawn in through the circulation air inlet under the drive of the first and second hot air circulation components. The hot air is then reheated by the first and second annular heating wires in the hot air circulation chamber and then transported back into the inner chamber through the circulation air outlet, thus forming a highly efficient hot air circulation. Furthermore, the simultaneous heating by the upper and lower heating wire arrays ensures a balanced heat distribution within the inner chamber. When a large amount of smoke is generated in the inner chamber and needs to be removed, simply turn on the exhaust fan. The exhaust fan collects the smoke from the inner chamber through the exhaust collection hood and then discharges it outwards through the exhaust pipe.

[0006] Preferably, the first and second hot air circulation components have the same structure, both including a motor and a fan blade disk. The motor is horizontally mounted on the back sealing plate of the hot air chamber, and the fan blade disk is mounted on the output shaft at the front end of the motor and located inside the hot air circulation chamber. The center of the fan blade disk is aligned with the circulation outlet hole on the air distribution plate. In actual operation, the motor drives the fan blade disk to rotate, drawing in hot air from the periphery of the fan blade disk and then blowing it forward into the inner casing. The annular electric heating tube can provide secondary heating to the surrounding hot air.

[0007] Preferably, the hot air chamber back sealing plate is equipped with an air intake pipe that communicates with the outside of the outer casing to facilitate the replenishment of fresh air to the hot air circulation chamber.

[0008] Preferably, a temperature sensor is installed on the side of the inner casing located in the hot air circulation chamber to better monitor the temperature inside the hot air circulation chamber.

[0009] Preferably, the inner box is equipped with shelves to facilitate the placement of food.

[0010] Preferably, two microwave heaters are installed on the side of the inner box, arranged side by side at intervals. In actual operation, the microwave heaters can be turned on or off to microwave heat the food inside the inner box according to actual requirements.

[0011] Preferably, multiple inner support legs are installed between the bottom of the inner box and the bottom plate of the outer box, so that a certain distance is maintained between the bottom of the inner box and the outer box to enhance the heat dissipation effect.

[0012] Preferably, a front door is installed on the front side of the outer casing, a handle is installed on the top of the front side of the front door, and a viewing glass window is installed in the center of the front door to facilitate the retrieval of food and the observation of the baking process.

[0013] Preferably, a control panel is installed above the front door, and operating parameters can be set through the control panel during actual operation.

[0014] The advantages of this utility model's hot air oven with excellent smoke extraction are as follows: This hot air oven has a simple and reasonable structure, excellent smoke extraction performance, and good hot air circulation efficiency and uniform heat distribution during baking. In actual operation, the first annular heating wire, the second annular heating wire, the upper heating wire array, and the lower heating wire array can be activated according to the actual baking requirements. After the first annular heating wire, the second annular heating wire, the upper heating wire array, and the lower heating wire array heat the air in the inner chamber and the hot air circulation chamber, the hot air that has exchanged heat with the food in the inner chamber is drawn in through the circulation air inlet under the drive of the first and second hot air circulation components. The hot air is then reheated by the first and second annular heating wires in the hot air circulation chamber and then transported back into the inner chamber through the circulation air outlet, thus forming a highly efficient hot air circulation. Furthermore, the simultaneous heating by the upper and lower heating wire arrays ensures a balanced heat distribution within the inner chamber. When a large amount of smoke is generated inside the inner chamber and needs to be removed, simply turn on the smoke exhaust fan. The smoke exhaust fan will collect the smoke inside the inner chamber through the smoke collection hood and then discharge it to the outside through the smoke exhaust pipe. Attached Figure Description

[0015] Figure 1 This is a front view of the three-dimensional structure of this utility model.

[0016] Figure 2 This is an exploded three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a rear view of the internal structure of this utility model after assembly.

[0018] Figure 4 Front view of the internal structure assembly of this utility model.

[0019] Figure 5 This is a partial structural assembly diagram of the present invention.

[0020] In the diagram: 1. Outer casing; 2. Front door; 3. Viewing glass window; 4. Handle; 5. Control panel; 6. Internal support; 7. Inner casing; 8. Smoke collection hood; 9. Smoke exhaust fan; 10. Smoke exhaust pipe; 11. Upper heating wire assembly; 12. First annular heating wire; 13. Second annular heating wire; 14. First hot air circulation assembly; 15. Air inlet pipe; 16. Lower heating wire assembly; 17. Second hot air circulation assembly; 18. Inner support leg; 19. Hot air chamber back seal plate; 20. Air distribution plate; 21. Circulating air outlet; 22. Circulating air inlet; 23. Shelf; 24. Microwave heater; 25. Temperature sensor; 26. Air distribution plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: A hot air furnace with good smoke extraction effect.

[0023] Reference Figures 1 to 5 As shown, a hot air oven with good smoke extraction effect includes: an outer casing 1, a front door 2 installed on the front side of the outer casing 1, a handle 4 installed on the top of the front side of the front door 2, and a viewing glass window 3 installed in the center of the front door 2 for convenient food retrieval and observation of the baking process. A control panel 5 is installed on the right side of the front door 2, through which working parameters can be set during actual operation.

[0024] An inner box 7 is installed inside the outer box 1. The outer box 1 and the inner box 7 are separated by an inner bracket 6 to ensure a certain spatial distance between them. Multiple inner support legs 18 are installed between the bottom of the inner box 7 and the bottom plate of the outer box 1, maintaining a certain distance between the bottom of the inner box 7 and the outer box 1 to enhance heat dissipation. An exhaust fan 9 is installed on the top of the inner box 7. The air inlet of the exhaust fan 9 is connected to the inner box 7 through an exhaust collection hood 8, and the air outlet of the exhaust fan 9 is connected to the outside of the outer box 1 through an exhaust pipe 10. In actual operation, when the smoke concentration inside the inner box 7 reaches a set threshold, the exhaust fan 9 automatically starts, expelling the smoke from the inner box 7. A shelf 23 is installed inside the inner box 7 for convenient food placement.

[0025] The back panel of the inner casing 7 is configured as a uniform air distribution plate 20. Multiple parallel-spaced circulating air inlets 22 are provided at both the upper and lower ends of the uniform air distribution plate 20. Two sets of circulating air outlets 21 are provided on the uniform air distribution plate 20, facing the inner casing 7. A hot air chamber back sealing plate 19 is installed behind the uniform air distribution plate 20. The hot air chamber back sealing plate 19, the uniform air distribution plate 20, and the inner casing 7 enclose a hot air circulation chamber. A first hot air circulation assembly 14 and a second hot air circulation assembly 17 are installed side-by-side at intervals in the hot air circulation chamber. Inside the annular cavity, the first annular heating wire 12 and the second annular heating wire 13 are respectively installed on the periphery of the first hot air circulation assembly 14 and the second hot air circulation assembly 17. The first hot air circulation assembly 14 and the second hot air circulation assembly 17 have the same structure, both including a motor and a fan blade disk. The motor is horizontally mounted on the back sealing plate 19 of the hot air cavity, and the fan blade disk is mounted on the output shaft at the front end of the motor and located inside the hot air circulation cavity. The center of the fan blade disk is set directly opposite the circulation air outlet 21 on the air distribution plate 20. In actual operation, the motor drives the fan blade disk to rotate, drawing in the hot air around the fan blade disk from the periphery, and then blowing it forward into the inner box 7 from the front. The annular heating tube can reheat the surrounding hot air.

[0026] An upper heating wire array 11 is installed on the inner top of the inner casing 7, and a lower heating wire array 16 is installed above the bottom of the inner casing 7. A uniform air distribution plate 26 is installed above the lower heating wire array 16. In actual operation, by installing the upper heating wire array 11 and the lower heating wire array 16, heating can be achieved from both top and bottom, ensuring a balanced heat distribution within the inner casing 7.

[0027] An air intake pipe 15, connected to the outside of the outer casing 1, is installed on the back sealing plate 19 of the hot air chamber to facilitate the replenishment of fresh air to the hot air circulation chamber. A temperature sensor 25 is installed on the side of the hot air circulation chamber on the inner casing 7 to better monitor the temperature inside the hot air circulation chamber. Two microwave heaters 24, arranged side by side and spaced apart, are installed on the side edge of the inner casing 7. In actual operation, the microwave heaters 24 can be turned on or off to microwave heat the food inside the inner casing 7 as needed.

[0028] This hot air furnace, with its excellent smoke extraction effect, has a simple structure and reasonable design, providing good smoke extraction, as well as good hot air circulation efficiency and uniform heat distribution during baking. In actual operation, the first annular heating wire 12, the second annular heating wire 13, the upper heating wire array 11, and the lower heating wire array 16 can be turned on according to the actual baking requirements. After the first annular heating wire 12, the second annular heating wire 13, the upper heating wire array 11, and the lower heating wire array 16 heat the air in the inner box 7 and the hot air circulation chamber, the hot air that has exchanged heat with the food in the inner box 7 is drawn in through the circulation air inlet 22 under the drive of the first hot air circulation component 14 and the second hot air circulation component 17. After being reheated in the hot air circulation chamber by the first annular heating wire 12 and the second annular heating wire 13, it is sent back to the inner box 7 through the circulation air outlet 21, thereby forming an efficient hot air circulation. Furthermore, the simultaneous heating of the upper heating wire array 11 and the lower heating wire array 16 ensures a balanced heat distribution in the inner box. When a large amount of smoke is generated inside the inner chamber 7 and needs to be removed, simply turn on the smoke exhaust fan 9. The smoke exhaust fan 9 collects the smoke inside the inner chamber 7 through the smoke collection hood 8 and then discharges it to the outside through the smoke exhaust pipe 10.

[0029] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A hot air furnace with good smoke extraction effect, comprising: An outer casing, within which an inner casing is installed, is characterized in that: the outer casing and the inner casing are separated by an internal support; a smoke exhaust fan is installed on the top of the inner casing; the air inlet of the smoke exhaust fan is connected to the inner casing through a smoke exhaust collection hood; the air outlet of the smoke exhaust fan is connected to the outside of the outer casing through a smoke exhaust pipe; the back panel of the inner casing is configured as a wind distribution plate; the wind distribution plate has multiple parallel and spaced circulating air inlets at its upper and lower ends; and two sets of circulating air outlets facing the inner casing are provided on the wind distribution plate. A hot air chamber back sealing plate is installed behind the plate. The hot air chamber back sealing plate, the air distribution plate, and the inner box form a hot air circulation chamber. A first hot air circulation component and a second hot air circulation component are installed side by side at intervals in the hot air circulation chamber. A first annular heating wire and a second annular heating wire are respectively installed on the periphery of the first hot air circulation component and the second hot air circulation component. An upper heating wire row is installed on the inner side of the top of the inner box. A lower heating wire row is installed above the bottom of the inner box. An air distribution plate is installed above the lower heating wire row.

2. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: The first hot air circulation component and the second hot air circulation component have the same structure, both including a motor and a fan blade disk. The motor is horizontally mounted on the back sealing plate of the hot air chamber, and the fan blade disk is mounted on the output shaft at the front end of the motor and located inside the hot air circulation chamber. The center of the fan blade disk is set directly opposite the circulation air outlet on the air distribution plate.

3. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: An air intake pipe connected to the outside of the outer casing is installed on the back sealing plate of the hot air cavity.

4. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: A temperature sensor is installed on the side of the hot air circulation chamber of the inner casing.

5. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: The inner box is equipped with shelves.

6. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: Two microwave heaters are installed side by side at intervals on the side of the inner box.

7. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: Multiple inner support legs are installed between the bottom of the inner box and the bottom plate of the outer box.

8. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: A front door is installed on the front side of the outer casing, a handle is installed on the top of the front side of the front door, and a viewing glass window is installed in the center of the front door.

9. The hot air furnace with good smoke extraction effect as described in claim 1, characterized in that: A control panel is installed above the front door.

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