Energy-saving drying machine for food processing
By adopting a design of direct contact between the pallet and the heating plate in the food drying equipment, combined with the use of circulating pumps and heaters, the problems of heat loss and low heat exchange efficiency in existing equipment are solved, and efficient food drying and Energy utilization.
Patent Information
- Application Number
- CN202420868390.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing food drying equipment has a low air temperature blown by the fan, which causes the heating fins to need to increase the higher temperature, which has a large heat loss and low heat exchange efficiency, which in turn affects the drying efficiency.
Designed with a dryer including a box, heating plate, circulation pump and heater, it is in direct contact with the heating plate through a pallet, and the heating medium is pumped with a circulation pump to increase the heat exchange area and efficiency, and is carried out through a drainage tank and a water connection tray. Preliminary filtering of water to reduce subsequent drying time.
It improves the heat transfer efficiency during the food drying process, reduces energy loss, and achieves the effect of energy saving and improving energy utilization efficiency. At the same time, the drying time is shortened by preliminary water filtration.
Smart Images
Figure CN222438324U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of food processing, and in particular to an energy-saving dryer for food processing. Background Art
[0002] At present, in the field of food processing, some foods are often dehydrated by drying in order to effectively increase their storage time and facilitate transportation and storage. After drying and dehydration, the food can avoid corruption and other problems to a certain extent, and the overall weight is also effectively controlled.
[0003] Existing drying equipment usually places the food to be dried on a tray, places several trays in the dryer, and uses a fan to blow air to the heating fins to form warm air. When the warm air passes through the food to be dried, it can effectively take away the moisture on the surface of the food. As the moisture on the surface of the food gradually decreases, the moisture inside the food is also taken away by the hot air, and finally the drying process of the entire food is completed.
[0004] Regarding the above-mentioned related technologies, since the fan blows the air with lower temperature outside into the dryer, the incoming wind temperature is low, so the temperature needs to be raised to a higher level during the air heating process, and the hot air passes through the food for a short time, resulting in a large heat loss. Due to the low heat exchange efficiency between gas and solid, the wind blown in by the fan can only take away less heat when passing through the heating fins. Utility Model Content
[0005] In order to improve energy utilization and increase the drying efficiency of the dryer for food, the present application provides an energy-saving dryer for food processing.
[0006] The present application provides a food processing energy-saving dryer, which adopts the following technical solution:
[0007] A food processing energy-saving dryer comprises a box body, a box door is provided on one side of the box body, a drying space for drying food is provided inside the box body, a plurality of heating plates are provided from top to bottom in the drying space, a tray is provided on the upper side of the heating plate, a heating pipe for circulating a heating medium is provided in the heating plate, a water inlet pipe and a water outlet pipe are provided on the side of the box body away from the box door, a circulating pump and a heater are provided inside the box body at the lower side of the drying space, the circulating pump is connected with the water inlet pipe and the water outlet pipe, a side of the heating plate close to the box door is lower than the other side, a baffle is provided on the side of the heating plate close to the box door, when the tray is placed on the heating plate, the baffle abuts against a side of the support plate close to the box door, a drainage groove is provided on the side of the tray close to the box door, one end of the drainage groove is connected to the outer side of the tray, the heating plate is provided with a groove adapted to the drainage groove, a drainage pipe adapted to the drainage groove is provided on the inner side of the box body, the drainage pipe is vertically arranged, the end of the drainage groove abuts against the upper end of the drainage pipe, and a water receiving tray is provided in the box body.
[0008] By adopting the above technical solution, during the process of drying food, the operator places the tray on the heating plate so that the lower end surface of the tray is in direct contact with the heating plate. The circulating pump pumps the heating medium that has passed through the heater into the heating plate, and transfers heat to the tray through the heating plate, effectively increasing the heat exchange area and efficiency. At the same time, compared with the contact between hot air and food, the heat transfer efficiency between solids and solids is higher, which effectively reduces the energy loss during heat exchange, thereby achieving energy saving and improving energy utilization efficiency. When the operator places the tray on the heating plate, since the side of the tray close to the box door is lower than the other side, the moisture on the surface of the food that has not yet been dried will flow down along the tray, enter the drain pipe through the drain groove, and enter the water receiving tray below, effectively filtering the food to be dried initially to reduce the subsequent drying time.
[0009] Optionally, a guide groove is provided on the side of the lower end surface of the heating plate away from the box door, and a vertical steam flow channel is provided inside the box body. The steam flow channel is connected to one end of the guide groove, and the lower end of the steam flow channel is located above the water receiving tray.
[0010] By adopting the above technical solution, when food is dried, the heated moisture becomes water vapor and moves upward. The water vapor will flow upward along the heating plate above and finally reach the guide groove. The water vapor is concentrated in the steam flow channel through the guide groove, so that the water vapor is liquefied in the steam pipe and enters the water receiving tray, effectively collecting the internal water vapor and preventing the drying effect from being reduced due to excessive water vapor in the box.
[0011] Optionally, the box body is provided with a storage space, and the circulation pump and the heater are both located in the storage space. A plurality of air outlets are provided on the side of the box body away from the box door, and an air inlet corresponding to the air outlet is provided on the side of the box door close to the drying space, and the air inlet is directly opposite to the air outlet. A fan is provided in the storage space, and an air flow channel for connecting the fan to the air inlet and the air outlet respectively is provided on the inner wall of the box. The heater adopts a heating fin type heater.
[0012] By adopting the above technical solution, when food is dried during normal operation, the fan blows air from the air inlet to the air outlet, and the air flow channel is used to pass the air drawn in by the fan to the inside of the box. When the fan blows the air through the heater in the storage space, the heating fins heat the air while heating the liquid heating medium, so that the air temperature is increased while also improving the efficiency of the heater, effectively increasing the air flow inside the box, thereby assisting in air drying of food.
[0013] Optionally, a pull-out water filter tray is provided on one side of the box body close to the door. When the fan blows the air in the storage space toward the air outlet, the air first passes through the pull-out water filter tray.
[0014] By adopting the above technical solution, when the air rich in water vapor passes through the pull-out water filter tray, the pull-out water filter tray can filter the air carrying more water, thereby effectively reducing the water content of the air entering the drying space again, thereby filtering the water inside the box, and the pull-out water filter tray has the characteristic of being easy to remove and replace, so that the operator can quickly replace the pull-out water filter tray.
[0015] Optionally, a control screen is provided on the box door, and a camera is provided inside the box, the camera pointing to the tray.
[0016] By adopting the above technical solution, the operator monitors the inside of the box through a camera. The camera monitoring replaces the glass monitoring window, which can effectively avoid the reduction in efficiency due to heat dissipation at the glass window while realizing timely monitoring of the internal food status.
[0017] Optionally, temperature sensors are provided on the inner wall of the box and the heating plate.
[0018] By adopting the above technical solution, the temperature of the heating plate can be monitored in real time through the temperature sensor located in the heating plate, and the temperature of the inner wall of the box can be monitored through the temperature sensor located inside the box, thereby effectively facilitating the operator to control the temperature of the heating medium according to different temperature requirements.
[0019] Optionally, a heat-insulating layer is provided inside the box body, and the heat-insulating layer is provided with a heat-reflecting layer and a porous material layer in sequence.
[0020] By adopting the above technical solution, a heat reflection layer is added to concentrate the heat inside the box to reduce heat loss, and by adding a porous material layer, the inside of the box is further insulated to achieve temperature stability.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. During the food drying process, the operator places the tray on the heating plate so that the lower end of the tray is in direct contact with the heating plate. The circulating pump pumps the heating medium that has passed through the heater into the heating plate, and transfers heat to the tray through the heating plate, effectively increasing the heat exchange area and efficiency. At the same time, compared with the contact between hot air and food, the heat transfer efficiency between solids is higher, which effectively reduces the energy loss during heat exchange, thereby achieving energy saving and improving energy utilization efficiency.
[0023] 2. When the operator places the tray on the heating plate, the side of the tray close to the oven door is lower than the other side, so the moisture on the surface of the food that has not yet been dried will flow down along the tray, enter the drain pipe through the drain groove, and enter the water receiving tray below, effectively filtering the food to be dried initially to reduce the subsequent drying time. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of an energy-saving dryer for food processing.
[0025] Figure 2 It is a cross-sectional schematic diagram of the overall structure.
[0026] Figure 3 This is a cross-sectional diagram of the other side of the internal structure.
[0027] Figure 4 It is a cross-sectional schematic diagram of the overall structure from another angle.
[0028] Figure 5 It is a schematic diagram of the internal structure.
[0029] Figure 6 It is a partially enlarged schematic diagram of the heating plate and the tray.
[0030] Explanation of the accompanying reference numerals: 1. Box body; 11. Box door; 111. Control panel; 12. Camera; 13. Water collecting tray; 14. Drain pipe; 15. Heating plate; 151. Tray; 152. Water inlet pipe; 153. Water outlet pipe; 154. Guide groove; 155. Steam flow channel; 16. Heat reflection layer; 17. Porous material layer; 18. Temperature sensor; 19. Pull-out water filter tray; 2. Drying space; 3. Storage space; 31. Heater; 32. Circulation pump; 33. Fan; 4. Air flow channel; 41. Air outlet; 42. Air inlet. DETAILED DESCRIPTION
[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0032] The embodiment of the present application discloses an energy-saving dryer for food processing.
[0033] Reference Figures 1 to 5A food processing energy-saving dryer includes a box body 1, a box door 11 is provided on one side of the box body 1, a drying space 2 for drying food is provided inside the box body 1, a plurality of heating plates 15 are provided from top to bottom in the drying space 2, a tray 151 is provided on the upper side of the heating plate 15, a heating pipe for circulating a heating medium is provided in the heating plate 15, a water inlet pipe 152 and a water outlet pipe 153 are provided on the side of the box body 1 away from the box door 11, a circulating pump 32 and a heater 31 are provided at the lower side of the drying space 2 inside the box body 1, and the circulating pump 32 is connected to the water inlet pipe 152 and the water outlet pipe 153. During the process of drying food, the operator places the tray 151 on the heating plate 15 so that the lower end surface of the tray 151 is in direct contact with the heating plate 15. The circulating pump 32 pumps the heating medium passing through the heater 31 into the heating plate 15, and transfers heat to the tray 151 through the heating plate 15, thereby effectively increasing the heat exchange area and efficiency. At the same time, compared with the contact between hot air and food, the heat transfer efficiency between solids and solids is higher, which effectively reduces the energy loss during heat exchange, thereby achieving energy saving and improving energy utilization efficiency.
[0034] The food that has completed the previous processing is usually not available before entering the dryer. The side of the heating plate 15 close to the door 11 is lower than the other side. The side of the heating plate 15 close to the door 11 is provided with a baffle. When the tray 151 is placed on the heating plate 15, the baffle abuts against the side of the support plate close to the door 11. The side of the tray 151 close to the door 11 is provided with a drainage groove, one end of which is connected to the outside of the tray 151. The heating plate 15 is provided with a groove adapted to the drainage groove. The inner side of the box body 1 is provided with a drainage pipe 14 adapted to the drainage groove. The drainage pipe 14 is vertically arranged, and the end of the drainage groove abuts against the upper end of the drainage pipe 14. A water receiving tray 13 is provided in the box body 1. When the operator places the tray 151 on the heating plate 15, since one side of the tray 151 close to the oven door 11 is lower than the other side, the moisture on the surface of the food that has not yet been dried will flow downward along the tray 151, enter the drain pipe 14 through the drain groove, and enter the water receiving tray 13 below, effectively performing preliminary water filtering on the food to be dried, so as to reduce the subsequent drying time.
[0035] In order to condense and discharge the water vapor inside the box body 1. A guide groove 154 is provided on the side of the lower end surface of the heating plate 15 away from the box door 11, and a vertical steam flow channel 155 is provided inside the box body 1. The steam flow channel 155 is connected to one end of the guide groove 154, and the lower end of the steam flow channel 155 is located above the water receiving tray 13. When drying food, the heated water becomes water vapor and moves upward. The water vapor will flow upward with the upper heating plate 15, and finally reach the guide groove 154. The water vapor is concentrated to the steam flow channel 155 through the guide groove 154, so that the water vapor is liquefied in the steam pipe and enters the water receiving tray 13, effectively collecting the internal water vapor, and preventing the drying effect from being reduced due to excessive water vapor in the box body 1.
[0036] In order to further improve the efficiency of the heater 31 and assist the condensation of water vapor, the box body 1 is provided with a storage space 3, the circulation pump 32 and the heater 31 are both located in the storage space 3, a plurality of air outlets 41 are provided on the side of the box body 1 away from the box door 11, and an air inlet 42 corresponding to the air outlet 41 is provided on the side of the box door 11 close to the drying space 2, and the air inlet 42 is directly opposite to the air outlet 41, a fan 33 is provided in the storage space 3, and an air flow channel 4 for connecting the fan 33 with the air inlet 42 and the air outlet 41 is provided on the inner wall of the box, and the heater 31 adopts a heating fin type heater 31. When the food is dried in normal operation, the fan 33 blows air from the air inlet 42 to the air outlet 41. The air flow channel 4 is used to pass the air drawn in by the fan 33 to the inside of the box 1. When the fan 33 blows the air through the heater 31 in the storage space 3, the heating fins heat the air while heating the liquid heating medium, so that the air temperature is increased while also improving the efficiency of the heater 31, effectively increasing the air flow inside the box 1, thereby assisting in air drying of the food.
[0037] By adopting the above technical solution, when food is dried during normal operation, the fan blows air from the air inlet to the air outlet, and the air flow channel is used to pass the air drawn in by the fan to the inside of the box. When the fan blows the air through the heater in the storage space, the heating fins heat the air while heating the liquid heating medium, so that the air temperature is increased while also improving the efficiency of the heater, effectively increasing the air flow inside the box, thereby assisting in air drying of food.
[0038] A pull-out water filter tray 19 is provided on one side of the box body near the door. When the fan blows the air in the storage space to the air outlet, the air first passes through the pull-out water filter tray 19, and the pull-out water filter tray 19 is used to filter the air with more water. The water content of the air entering the drying space again is effectively reduced, and the water filtering effect on the air inside the box body is achieved. The pull-out water filter tray 19 is easy to remove and replace, so that the operator can quickly replace the pull-out water filter tray 19. Since the conventional monitoring window is made of glass, part of the heat is transmitted through the glass window. The box door 11 is provided with a control panel 111, and a camera 12 is provided inside the box body 1, and the camera 12 points to the tray 151. The operator monitors the inside of the box body 1 through the camera 12. The monitoring method of the camera 12 replaces the glass monitoring window to achieve timely monitoring of the internal food status, and effectively avoids the reduction in efficiency caused by heat dissipation at the glass window.
[0039] In order to accurately detect the temperature inside the box 1 for subsequent control, a temperature sensor 18 is provided in the inner wall of the box 1 and the heating plate 15. The temperature sensor 18 located in the heating plate 15 monitors the temperature of the heating plate 15 in real time, and the temperature of the inner wall of the box 1 is monitored by the temperature sensor 18 located inside the box 1, thereby effectively facilitating the operator to control the temperature of the heating medium according to different temperature requirements.
[0040] The inner side of the box 1 is provided with an insulation layer, which is provided with heat reflection and porous material layers 17 in sequence. The heat reflection layer 16 is added to concentrate the heat inside the box 1 to reduce heat loss, and the porous material layer 17 is added to further insulate the inside of the box 1 to achieve temperature stability.
[0041] The implementation principle of the energy-saving dryer for food processing in the embodiment of the present application is as follows: the moisture inside the tray 151 is discharged through the drain groove and the drain pipe 14, the heat exchange efficiency is improved by the direct contact between the heating plate 15 and the tray 151, and the drying process is assisted by the fan 33.
[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A food processing energy-saving dryer, comprising a box body (1), a box door (11) is provided on one side of the box body (1), and is characterized in that: The box body (1) is provided with a drying space (2) for drying food. A plurality of heating plates (15) are provided from top to bottom in the drying space (2). A tray (151) is provided on the upper side of the heating plate (15). A heating pipe for circulating a heating medium is provided in the heating plate (15). A water inlet pipe (152) and a water outlet pipe (153) are provided on the side of the box body (1) away from the box door (11). A circulating pump (32) and a heater (31) are provided on the lower side of the drying space (2) in the box body (1). The circulating pump (32) is connected to the water inlet pipe (152) and the water outlet pipe (153). The heating plate (15) is provided with a heating pipe (152) and a heating pipe (153) on the side of the box body (1) away from the box door (11). The side near the box door (11) is lower than the other side. A baffle is provided on the side of the heating plate (15) near the box door (11). When the tray (151) is placed on the heating plate (15), the baffle abuts against the side of the support plate near the box door (11). A drainage groove is provided on the side of the tray (151) near the box door (11). One end of the drainage groove is connected to the outside of the tray (151). The heating plate (15) is provided with a groove adapted to the drainage groove. A drainage pipe (14) adapted to the drainage groove is provided on the inner side of the box body (1). The drainage pipe (14) is vertically arranged. The end of the drainage groove abuts against the upper end of the drainage pipe (14). A water receiving tray (13) is provided inside the box body (1).
2. The food processing energy-saving dryer according to claim 1, characterized in that: A guide groove (154) is provided on the side of the lower end surface of the heating plate (15) away from the box door (11), and a vertical steam flow channel (155) is provided inside the box body (1). The steam flow channel (155) is connected to one end of the guide groove (154), and the lower end of the steam flow channel (155) is located above the water receiving tray (13).
3. The food processing energy-saving dryer according to claim 1, characterized in that: The box body (1) is provided with a storage space (3), the circulation pump (32) and the heater (31) are both located in the storage space (3), a plurality of air outlets (41) are provided on a side of the box body (1) away from the box door (11), an air inlet (42) corresponding to the air outlet (41) is provided on a side of the box door (11) close to the drying space (2), the air inlet (42) and the air outlet (41) are directly opposite, a fan (33) is provided in the storage space (3), an air flow channel (4) for connecting the fan (33) to the air inlet (42) and the air outlet (41) is provided on the inner wall of the box, and the heater (31) is a heating fin type heater (31).
4. The food processing energy-saving dryer according to claim 3, characterized in that: A pull-out water filter tray (19) is provided on one side of the box body (1) close to the box door (11); when the fan (33) blows the air in the storage space (3) toward the air outlet (41), the air first passes through the pull-out water filter tray (19).
5. The food processing energy-saving dryer according to claim 1, characterized in that: The box door (11) is provided with a control screen (111), and a camera (12) is provided inside the box body (1), and the camera (12) points to the tray (151).
6. The food processing energy-saving dryer according to claim 1, characterized in that: Temperature sensors (18) are provided on the inner wall of the box (1) and in the heating plate (15).
7. The food processing energy-saving dryer according to claim 1, characterized in that: The box body (1) is provided with a heat-insulating layer on the inner side, and the heat-insulating layer is provided with heat-reflecting and porous material layers (17) in sequence.