Air-uniformizing efficient hot blast stove

Abstract

The utility model provides an air-uniformizing efficient hot blast stove which comprises an outer shell, an inner box body is installed in the outer shell, a circulating air back plate is installed in the inner box body, a back sealing plate is installed on the rear side of the circulating air back plate, a closed space is formed between the circulating air back plate and the back sealing plate, and a circulating air distribution fan installation base is installed on the rear side of the back sealing plate. The circulating air distribution fan is installed on the circulating air distribution fan installation base in the transverse direction and comprises a motor, a wind wheel is installed on an output shaft of the motor, an annular electric heating pipe is installed on the outer side of the wind wheel, and air distribution holes are formed in the position, right in front of the wind wheel, of the circulating air back plate. A plurality of circulating air holes are formed in the periphery of the air distribution holes in the circulating air back plate. The air-uniformizing efficient hot-blast stove is simple in structure, adopts the structural design of single-machine hot air circulation, not only can distribute air evenly and improve heat efficiency, but also can reduce the size of the oven and reduce energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a uniform and efficient hot air furnace. Background Art

[0002] An oven is a device that heats and cooks food by placing it in a closed space. Existing electric ovens use multiple heaters to place food in a closed space without convection during cooking. Although this can maximize the heat dissipation and improve the heat utilization rate, due to the various shapes of food, many corners of food are not fully baked, resulting in over-baking or under-baking of some parts of the baked food, resulting in uneven baking of the food and loss of its delicious taste.

[0003] In order to solve the above drawbacks, in the prior art, a Chinese patent with publication number CN211582726U discloses an oven with a hot air circulation device, which includes an oven shell, a hollow inner tank is arranged in the oven shell, a door body is installed outside the inner tank, and the door body is hingedly connected to the oven shell. The left and right sides of the inner tank are provided with a left air duct and a right air duct between the oven shell, and the left and right air ducts are respectively provided with a first hot air component and a second hot air component. The first hot air component and the second hot air component blow hot air into the inner tank through a ventilated plate arranged on the side wall of the oven inner tank. The patent forms a hot air convection circulation inside the oven, so that the heat distribution inside the oven is more uniform, thereby improving the thermal efficiency and ensuring that the food can be evenly baked. However, the patent adopts a structure of double hot air components, which is not only complex in structure, but also has to increase the volume of the oven due to the arrangement of the double hot air components, and has high energy consumption, production cost, and use cost. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model proposes a uniform and efficient hot air furnace, which adopts a single-machine hot air circulation structural design, which can not only make the air distribution uniform and improve the thermal efficiency, but also reduce the volume of the oven and reduce energy consumption.

[0005] To achieve the above technical solution, the utility model provides a uniform and efficient hot air furnace, comprising an outer shell, a box door is arranged on the front side of the outer shell, a control panel is installed on the outer shell on one side of the box door, an inner box is installed in the outer shell, a circulating air back plate is installed in the inner box, a back sealing plate is installed on the rear side of the circulating air back plate, a closed space is formed between the circulating air back plate and the back sealing plate, a circulating air distribution fan mounting seat is installed on the rear side of the back sealing plate, a circulating air distribution fan is installed on the circulating air distribution fan mounting seat in the transverse direction, the circulating air distribution fan comprises a motor installed in the transverse direction on the circulating air distribution fan mounting seat, the motor The output shaft of the machine penetrates the back sealing plate in the transverse direction and extends to the enclosed space formed between the circulating air back plate and the back sealing plate. The wind wheel is installed on the output shaft of the motor and is located in the enclosed space formed between the circulating air back plate and the back sealing plate. An annular electric heating tube arranged concentrically with the wind wheel is installed on the outer side of the wind wheel. The interface end of the annular electric heating tube extends to the outside of the back sealing plate. An air distribution hole is arranged on the circulating air back plate directly in front of the wind wheel. A plurality of circulating air holes are arranged on the circulating air back plate around the air distribution hole. An air intake connecting pipe is arranged on the back sealing plate on one side of the annular electric heating tube, and the air intake connecting pipe is communicated with the air intake pipe extending to the outside of the outer shell.

[0006] In the above technical scheme, during actual operation, since an enclosed space is formed between the circulating air back plate and the back sealing plate, and the wind wheel is installed in the enclosed space, an air intake connecting pipe connected to the outside is provided on the back sealing plate. Therefore, when the motor drives the wind wheel to rotate, the external air will be sucked into the enclosed space through the air intake connecting pipe, and then heated by the annular electric heating tube. The heated air is then evenly transported to the inner box through the air distribution holes on the front side of the wind wheel through the wind wheel to ensure uniform air distribution. At the same time, when the wind wheel rotates, part of the hot air in the inner box will be re-sucked into the enclosed space through a plurality of circulating air holes located around the air distribution holes on the circulating air back plate. After being heated again by the annular electric heating tube, it is evenly transported to the inner box through the air distribution holes again, thereby realizing the circulation of hot air, thereby improving the hot air efficiency and reducing energy consumption.

[0007] Preferably, the wind wheel includes a wind blade disk, the wind blade disk is fixed on the output shaft of the motor, an outer support ring with the same diameter as the wind blade disk is arranged in front of the wind blade disk, and two blades are arranged between the wind blade disk and the outer support ring, which are distributed in a circular array with the center of the wind blade disk as the center, and an air duct is formed between adjacent blades. Through the structural design of the wind wheel, when the wind wheel rotates, the air around the wind wheel can be first gathered to the center of the wind blade disk through the surrounding air ducts, and then transported forward, so as to achieve uniform distribution of hot air.

[0008] Preferably, two microwave heaters spaced apart and arranged side by side in an upper and lower direction are installed on the side wall of the inner box. In actual operation, the microwave heaters can also be started as needed to perform microwave heating on the food placed in the inner box.

[0009] Preferably, a first temperature sensor is installed on the side wall of the inner box, and a second temperature sensor is installed on the back sealing plate on one side of the annular electric heating tube, so as to better monitor the temperature inside the inner box and at the annular electric heating tube, so as to control the temperature more accurately.

[0010] Preferably, a heat dissipation fan is installed between the outer casing and the inner casing to enhance the overall heat dissipation effect of the hot air stove.

[0011] Preferably, a controller is installed in the space between the outer shell and the inner box, and the controller is electrically connected to the control panel, the first temperature sensor, the second temperature sensor, the cooling fan, the circulating air distribution fan, and the annular electric heating pipe. In actual operation, various working parameters can be controlled through the control panel via the controller.

[0012] Preferably, a shelf is provided in the inner box to facilitate the placement of food plates.

[0013] Preferably, a mechanical knob is provided on the control panel.

[0014] Preferably, a handle is provided on the oven door, and a transparent viewing window is installed in the middle of the oven door. The handle facilitates opening or closing of the oven door, and the transparent viewing window facilitates observation of the baking status of food in the inner box.

[0015] The utility model provides a uniform and efficient hot air stove with beneficial effects in that: the uniform and efficient hot air stove has a simple structure and adopts a single-machine hot air circulation structural design, which can not only make the air distribution uniform and improve the thermal efficiency, but also reduce the volume of the oven and reduce energy consumption. In actual operation, since a closed space is formed between the circulating air back plate and the back sealing plate, and the wind wheel is installed in the closed space, and an air intake connecting pipe connected to the outside is provided on the back sealing plate, when the motor drives the wind wheel to rotate, the external air will be sucked into the closed space through the air intake connecting pipe, and then after being heated by the annular electric heating pipe, the heated air will be uniformly transported to the inner box through the air distribution holes on the front side of the wind wheel through the wind wheel, so as to ensure uniform air distribution. At the same time, when the wind wheel rotates, part of the hot air in the inner box will be re-sucked into the closed space through a plurality of circulating air holes on the circulating air back plate located around the air distribution holes, and after being heated again by the annular electric heating pipe, it will be uniformly transported to the inner box through the air distribution holes again, thereby realizing the circulation of hot air, so as to improve the hot air efficiency and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic exploded view of the three-dimensional structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the utility model.

[0019] Figure 4 It is an exploded schematic diagram of the internal three-dimensional structure of the utility model.

[0020] Figure 5 It is a schematic diagram of partial assembly of the internal structure of the utility model.

[0021] Figure 6 It is a schematic diagram of the installation structure of the circulating air distribution fan and the annular electric heating pipe in the utility model.

[0022] In the figure: 1. outer shell; 101. frame; 102. left side plate; 103. top plate; 104. back plate; 105. right side plate; 106. bottom plate; 2. box door; 3. transparent visual window; 4. handle; 5. control panel; 6. inner box; 7. air inlet pipe; 8. air inlet connecting pipe; 9. cooling fan; 10. controller; 11. shelf; 12. back cover plate; 13. circulating air distribution fan mounting seat; 14. circulating air distribution fan; 141. motor; 142. wind wheel; 143. outer support ring; 144. blades; 15. annular electric heating tube; 16. microwave heater; 17. first temperature sensor; 18. second temperature sensor; 19. circulating air back plate; 191. air distribution hole; 192. circulating air hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. All other embodiments obtained by ordinary personnel in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment: A uniform and efficient hot air furnace.

[0025] Reference Figures 1 to 6As shown, a uniform and efficient hot air stove comprises an outer shell 1, wherein the outer shell 1 comprises a frame 101, wherein a left side plate 102, a top plate 103, a back plate 104, a right side plate 105 and a bottom plate 106 are respectively mounted on the frame 101, wherein the back plate 104, the right side plate 105 and the bottom plate 106 are all provided with heat dissipation holes, a cabinet door 2 is arranged on the front side of the frame 101, wherein a handle 4 is arranged on the cabinet door 2, and a transparent visual window 3 is arranged in the middle part of the cabinet door 2, wherein the handle 4 is arranged to facilitate the opening or closing of the cabinet door 2, and the transparent visual window 3 is arranged to facilitate the observation of the baking condition of the food in the inner cabinet 6.

[0026] A control panel 5 is installed on the outer shell 1 at one side of the box door 2, and a mechanical knob is arranged on the control panel 5. An inner box 6 is installed in the outer shell 1, and a shelf 11 is arranged in the inner box 6 to facilitate the placement of food plates. A circulating air back plate 19 is installed in the inner box 6, and a back sealing plate 12 is installed on the rear side of the circulating air back plate 19, and a closed space is formed between the circulating air back plate 19 and the back sealing plate 12, and a circulating cloth air fan mounting seat 13 is installed on the rear side of the back sealing plate 12, and a circulating cloth air fan 14 is installed on the circulating cloth air fan mounting seat 13 in the horizontal direction, and the circulating cloth air fan 14 includes a motor 141 installed on the circulating cloth air fan mounting seat 13 in the horizontal direction, and the output shaft of the motor 141 extends to after penetrating the back sealing plate 12 in the horizontal direction. In the enclosed space formed between the circulating wind back plate 19 and the back sealing plate 12, the wind wheel 142 is installed on the output shaft of the motor 141 and is located in the enclosed space formed between the circulating wind back plate 19 and the back sealing plate 12. The wind wheel 142 includes a wind blade disk, which is fixed on the output shaft of the motor 141. An outer support ring 143 with the same diameter as the wind blade disk is arranged in front of the wind blade disk. Two blades 144 distributed in a circular array with the center of the wind blade disk as the center are arranged between the wind blade disk and the outer support ring 143, and air ducts are formed between adjacent blades 144. Through the structural design of the above-mentioned wind wheel 142, when the wind wheel 142 rotates, the air around the wind wheel 142 can be gathered to the center of the wind blade disk through the surrounding air ducts, and then transported forward, so as to achieve uniform distribution of hot air.

[0027] An annular electric heating pipe 15 which is cocentric with the wind wheel 142 is installed on the outer side of the wind wheel 142, and the interface end of the annular electric heating pipe 15 extends to the outer side of the back sealing plate 12. During actual operation, the annular electric heating pipe 15 heats the air, and then gathers the heated air through the wind wheel 142 to form hot air, which is then transported forward.

[0028] The circulating air back plate 19 is provided with an air distribution hole 191 directly in front of the wind wheel 142, and a plurality of circulating air holes 192 are provided on the circulating air back plate 19 around the air distribution hole 191. The back sealing plate 12 is provided with an air intake connecting pipe 8 on one side of the annular electric heating tube 15, and the air intake connecting pipe 8 is connected to the air intake pipe 7 extending to the outside of the outer shell 1. During actual operation, since an enclosed space is formed between the circulating air back plate 19 and the back sealing plate 12, and the wind wheel 142 is installed in the enclosed space, and an air intake connecting pipe 8 connected to the outside is provided on the back sealing plate 12, when the motor 141 drives the wind wheel 142 to rotate, the external air will be sucked into the enclosed space through the air intake connecting pipe 8, and then heated by the annular electric heating tube 15, and then the heated air will be evenly transported to the inner box body 6 through the air distribution holes 191 on the front side of the wind wheel 142 through the wind wheel 142 to ensure uniform air distribution. At the same time, when the wind wheel 142 rotates, part of the hot air in the inner box body 6 will be re-sucked into the enclosed space through the multiple circulating air holes 192 located around the air distribution holes 191 on the circulating air back plate 19, and after being heated again by the annular electric heating tube 15, it will be evenly transported to the inner box body 6 through the air distribution holes 191 again, thereby realizing the circulation of hot air, so as to improve the hot air efficiency and reduce energy consumption.

[0029] Reference Figures 3 to 6 As shown, two microwave heaters 16 arranged side by side and spaced from top to bottom are installed on the side wall of the inner box 6. In actual operation, the microwave heater 16 can also be started as needed to perform microwave heating on the food placed in the inner box. A first temperature sensor 17 is installed on the side wall of the inner box 6, and a second temperature sensor 18 is installed on the back cover plate 12 on one side of the annular electric heating pipe 15, so as to better monitor the temperature in the inner box 6 and at the annular electric heating pipe 15, so as to more accurately control the temperature. A heat dissipation fan 9 is installed between the outer shell 1 and the inner box 6 to enhance the overall heat dissipation effect of the hot air stove. A controller 10 is installed in the space between the outer shell 1 and the inner box 6, and the controller 10 is electrically connected to the control panel 5, the first temperature sensor 17, the second temperature sensor 18, the heat dissipation fan 9, the circulating air distribution fan 14, and the annular electric heating pipe 15 respectively. In actual operation, various working parameters can be controlled by the control panel 5 via the controller 10.

[0030] The uniform air and high-efficiency hot air furnace has a simple structure and adopts a single-machine hot air circulation structural design, which can not only make the air distribution uniform and improve the thermal efficiency, but also reduce the volume of the oven and reduce energy consumption.

[0031] The above is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A uniform and efficient hot air furnace, comprising an outer shell, a door is arranged on the front side of the outer shell, a control panel is installed on one side of the door, an inner box is installed in the outer shell, and the characteristics are: A circulating air back plate is installed in the inner box body, and a back sealing plate is installed at the rear side of the circulating air back plate, and a closed space is formed between the circulating air back plate and the back sealing plate, and a circulating air distribution fan mounting seat is installed at the rear side of the back sealing plate, and the circulating air distribution fan is installed on the circulating air distribution fan mounting seat in the horizontal direction. The circulating air distribution fan includes a motor installed on the circulating air distribution fan mounting seat in the horizontal direction, and the output shaft of the motor passes through the back sealing plate in the horizontal direction and then extends to the closed space formed between the circulating air back plate and the back sealing plate, and the wind wheel is installed It is mounted on the output shaft of the motor and is located in the enclosed space formed between the circulating air back plate and the back sealing plate. An annular electric heating tube arranged concentrically with the wind wheel is installed on the outer side of the wind wheel, and the interface end of the annular electric heating tube extends to the outside of the back sealing plate. An air distribution hole is arranged on the circulating air back plate directly in front of the wind wheel, and a plurality of circulating air holes are arranged on the circulating air back plate around the air distribution hole. An air intake connecting pipe is arranged on one side of the annular electric heating tube on the back sealing plate, and the air intake connecting pipe is connected with the air intake pipe extending to the outside of the outer shell.

2. The uniform and efficient hot air stove according to claim 1, characterized in that: The wind wheel includes a wind blade disk, which is fixed on the output shaft of the motor. An outer support ring with the same diameter as the wind blade disk is arranged in front of the wind blade disk. Two blades distributed in a circular array with the center of the wind blade disk as the center are arranged between the wind blade disk and the outer support ring, and an air duct is formed between adjacent blades.

3. The uniform and efficient hot air stove according to claim 1, characterized in that: Two microwave heaters are installed on the side wall of the inner box body and are arranged side by side in an interval.

4. The uniform and efficient hot air stove according to claim 3, characterized in that: A first temperature sensor is installed on the side wall of the inner box, and a second temperature sensor is installed on one side of the annular electric heating tube on the back sealing plate.

5. The uniform and efficient hot air stove according to claim 4, characterized in that: A heat dissipation fan is installed between the outer casing and the inner casing.

6. The uniform and efficient hot air stove according to claim 5, characterized in that: A controller is installed in the space between the outer shell and the inner box, and the controller is electrically connected to the control panel, the first temperature sensor, the second temperature sensor, the cooling fan, the circulating air distribution fan, and the annular electric heating pipe respectively.

7. The uniform and efficient hot air stove according to claim 1, characterized in that: A shelf is arranged in the inner box.

8. The uniform and efficient hot air stove according to claim 1, characterized in that: The control panel is provided with a mechanical knob.

9. The uniform and efficient hot air stove according to claim 1, characterized in that: The box door is provided with a handle, and a transparent viewing window is installed in the middle of the box door.

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