Energy-saving drying device for food processing

By adopting heat pump technology and optimized airflow design in food drying equipment, the problems of high energy consumption and low drying efficiency in traditional equipment are solved, and efficient heat energy utilization and food drying effect are achieved.

CN222617397UActive Publication Date: 2025-03-14GUANGDONG GUANGKEN INCUBATOR OPERATION CO LTD
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Patent Information

Application Number
CN202421083746.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-03-14
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

Traditional food drying equipment has problems of high energy consumption and low drying efficiency.

Method used

The heat pump technology and optimized air flow design are adopted to drive the air to circulate in the insulation room through the heat pump, and the S-shaped design of the windshield increases the contact time and surface area of ​​the hot air flow, achieving efficient heat energy utilization and good dehumidification performance.

Benefits of technology

It improves energy utilization, reduces energy consumption, achieves efficient food drying, extends the service life of the equipment, and meets the requirements of environmental protection and sustainable development.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of food drying, and discloses an energy-saving drying device for food processing, which comprises a cabinet body, an exhaust fan, a dehumidification chamber, a heat pump, a heat preservation chamber, a drying agent and a controller, the heat preservation chamber is arranged in the cabinet body and is fixedly connected with the cabinet body; the heat pump is arranged on the lower portion in the cabinet body, located below the heat preservation chamber and fixedly connected with the cabinet body. The air exhaust fan is arranged on the side of the heat preservation chamber and fixedly connected with the heat preservation chamber. The dehumidification chamber is arranged in the cabinet body and is fixedly connected with the heat preservation chamber; the core of the device is that hot airflow provided by a heat pump is used for drying food, and meanwhile, heat energy reutilization and effective moisture removal are maximized through S-shaped arrangement of an optimized air flowing path wind shield. By arranging the dehumidification chamber and the drying agent, heat loss can be reduced, so that energy consumption can be reduced, the energy cost can be reduced, meanwhile, the influence on the environment can be reduced, and the efficiency and quality of the drying process are ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of food drying, in particular to an energy-saving drying device for food processing. Background Art

[0002] In the food processing industry, drying is a key process used to remove moisture from food to extend its shelf life, reduce storage volume, and maintain the taste and nutrition of food. Traditional drying equipment often has problems with high energy consumption and low drying efficiency. In order to solve these problems, an energy-saving drying device for food processing was developed, which achieves efficient thermal energy utilization and good dehumidification performance by utilizing heat pump technology and optimized airflow design. Utility Model Content

[0003] The utility model provides an energy-saving drying device for food processing, which solves the problems of high energy consumption and low drying efficiency in the related art during use.

[0004] The technical solution of the utility model is as follows:

[0005] An energy-saving drying device for food processing includes: a cabinet, a first cabinet door, a first door handle, an exhaust port, an exhaust fan, a dehumidification chamber, a metal door, a handle, a heat pump, an air inlet, four wind shields, four trays, a plurality of ventilation holes, a heat preservation chamber, a filter plate, a desiccant, a dehumidification pipe, a ventilation pipe, a drying pipe, a plurality of air exchange ports, and a controller. The cabinet is arranged on the ground. The heat preservation chamber is arranged inside the cabinet, and the heat preservation chamber is in close contact with the cabinet and is fixedly connected to the cabinet. The first cabinet door is arranged vertically, arranged on the side of the cabinet and the side of the heat preservation chamber, and the side of the first cabinet door is rotatably connected to the cabinet, and its rotation axis is arranged vertically. The first door handle is arranged on the side of the first cabinet door and is fixedly connected to the first cabinet door. The heat pump is arranged at the lower part of the cabinet, and is located below the heat preservation chamber and is fixedly connected to the cabinet. The air inlet is arranged on the lower surface of the heat preservation chamber, and is connected to the air outlet of the heat pump and the inside of the heat preservation chamber. Four windshields are transversely arranged inside the insulation chamber and fixedly connected to the insulation chamber. The four windshields are alternately arranged to form an S shape. Four trays are transversely arranged above the four windshields and fixedly connected to the four windshields. A plurality of ventilation holes are arranged on the upper surface of the tray and are connected up and down. An exhaust port is arranged on the upper surface of the insulation chamber and is connected to the inside of the insulation chamber. A ventilation duct is arranged on the side of the insulation chamber, and one end is connected to the exhaust port. An exhaust fan is arranged on the side of the insulation chamber and is fixedly connected to the insulation chamber, and an air inlet of the exhaust fan is connected to the other end of the ventilation duct. A dehumidification chamber is arranged on the side of the insulation chamber and is fixedly connected to the insulation chamber. A metal door is arranged on the side of the dehumidification chamber and is rotatably connected to the dehumidification chamber, and its rotation axis is arranged vertically. A handle is arranged on the side of the metal door and is fixedly connected to the metal door. A filter plate is arranged inside the dehumidification chamber and is slidably connected to the dehumidification chamber. Its sliding direction is horizontal and exists on the metal door. A desiccant is placed inside the dehumidification chamber. The dehumidification pipe is arranged inside the cabinet, one end of which is connected to the air outlet of the exhaust fan, and the other end passes through the lower surface of the dehumidification chamber and is connected to the inside of the dehumidification chamber. The drying pipe is arranged inside the cabinet, passes through the upper surface of the dehumidification chamber, one end of which is connected to the air inlet of the heat pump, and the other end of which is connected to the upper part of the dehumidification chamber. Several ventilation ports are arranged on both sides of the lower part of the cabinet and are connected to the inside of the cabinet. The controller is electrically connected to the heat pump and the exhaust fan.

[0006] After the staff puts the food into the insulation room, they start the heat pump and exhaust fan through the controller. The heat pump drives the air in the heat pump through the heat pump, air inlet, the interior of the insulation room, exhaust outlet, ventilation pipe, exhaust fan, dehumidification pipe, dehumidification chamber, drying pipe, heat pump air inlet, and returns to the heat pump. After the heat pump and exhaust fan are started by the controller, the hot air flow blown out by the heat pump reaches the interior of the insulation room. The hot air flow brings out the moisture in the food, achieving the maximum utilization of the hot air flow. When the hot air flow reaches the upper part of the insulation room with water vapor, it goes along the ventilation pipe, exhaust fan, and dehumidification pipe to the interior of the dehumidification chamber. The hot air flow passes through the desiccant, which absorbs the moisture in the hot air flow, and then the hot air flow passes through the drying pipe to the heat pump air inlet. This can make more efficient use of waste heat and reduce energy consumption. When the food is dried, use the controller to turn off the heat pump and exhaust fan.

[0007] Preferably, the plurality of ventilation openings are arranged in an inclined shape, and the inclination angle of the plurality of ventilation openings is 45 degrees.

[0008] The 45-degree tilt setting of the vents can promote air flow, making it easier for air to flow from the bottom to the top, thereby improving ventilation. This design helps reduce moisture and helps extend the service life of the device.

[0009] Preferably, it includes a second cabinet door and a second door handle. The second cabinet door is arranged horizontally and is arranged on the side of the cabinet body. The side of the second cabinet door is rotatably connected to the cabinet body, and its rotation axis is arranged horizontally. The second door handle is arranged on the side of the second cabinet door and is fixedly connected to the second cabinet door.

[0010] By providing a second cabinet door and a second door handle, the desiccant can be easily replaced to ensure that the humidity inside the insulation room is always kept at an appropriate level.

[0011] Preferably, the cabinet body, the first cabinet door, the dehumidification pipe, the ventilation pipe, the drying pipe, and the insulation chamber are all made of insulation materials.

[0012] Insulation materials can effectively isolate the temperature difference between inside and outside, reduce heat transfer, thereby improving the insulation performance of the insulation room and maintaining a stable temperature inside. It can reduce heat loss, thus reducing energy consumption and energy costs, and also helps reduce the impact on the environment.

[0013] Preferably, the first cabinet door and the second cabinet door are both hingedly connected to the cabinet body.

[0014] The hinge connection makes the connection between the first cabinet door, the second cabinet door and the cabinet body simpler, does not require complex mechanical devices or structures, reduces manufacturing costs and improves reliability.

[0015] Preferably, a temperature sensor is included, which is arranged inside the insulation chamber, close to the exhaust port, and is electrically connected to the heat pump and the controller.

[0016] The staff starts the heat pump and the temperature sensor through the controller. When the temperature sensor senses that the temperature is not between 50-70 degrees Celsius, the temperature sensor controls the heat pump through the controller to make the temperature reach 50-70 degrees Celsius. When the food is dried, the staff turns off the heat pump and the temperature sensor through the controller.

[0017] Preferably, a humidity sensor is included, which is arranged inside the dehumidification chamber, close to the drying tube, and electrically connected to the controller.

[0018] After the staff puts the food into the insulation room, they start the humidity sensor through the controller. When the humidity sensor senses that the humidity reaches 70%RH, the humidity sensor sends a signal to the controller, allowing the staff to replace the desiccant in time.

[0019] The beneficial effects of the utility model are:

[0020] 1. By using the S-shaped design between the heat pump and the wind shield, the heat loss is greatly reduced and the energy utilization rate is improved.

[0021] 2. The S-shaped design between the wind shields increases the contact time and surface area of ​​the hot air flow, making the heat transfer more complete, thereby accelerating the evaporation of moisture in the food.

[0022] 3. The first cabinet door, the second cabinet door and the metal door are designed to facilitate the operator to put in and take out food, and to facilitate the replacement and maintenance of the desiccant.

[0023] 4. The built-in temperature sensor and humidity sensor can monitor the drying environment in real time, and automatically adjust the equipment operation through linkage with the controller to maintain the optimal drying effect.

[0024] 5. Reducing energy consumption while alleviating the impact of equipment on the environment is in line with modern industry's requirements for environmental protection and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Figure 1 This is a schematic diagram of the front view structure of an energy-saving drying device for food processing according to the utility model;

[0027] Figure 2 This is a side structural schematic diagram of an energy-saving drying device for food processing according to the utility model;

[0028] Figure 3This is a schematic diagram of the cross-sectional structure of an energy-saving drying device for food processing according to the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a windshield of an energy-saving drying device for food processing according to the utility model;

[0030] In the figure: 1. cabinet body; 2. first cabinet door; 3. first door handle; 4. exhaust vent; 5. exhaust fan; 6. dehumidification chamber; 7. heat pump; 8. air inlet; 9. wind shield; 10. tray; 11. ventilation hole; 12. insulation chamber; 13. second cabinet door; 14. second door handle; 15. filter plate; 16. desiccant; 17. dehumidification pipe; 18. ventilation pipe; 19. drying pipe; 20. ventilation port. DETAILED DESCRIPTION

[0031] The following will be combined with 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. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 4The utility model provides an energy-saving drying device for food processing, including: a cabinet 1, a first cabinet door 2, a first door handle 3, an exhaust port 4, an exhaust fan 5, a dehumidification chamber 6, a metal door, a handle, a heat pump 7, an air inlet 8, four wind shields 9, four trays 10, a plurality of ventilation holes 11, a heat preservation chamber 12, a filter plate 15, a desiccant 16, a dehumidification pipe 17, a ventilation pipe 18, a drying pipe 19, a plurality of ventilation ports 20, and a controller. The cabinet 1 is arranged on the ground. The heat preservation chamber 12 is arranged inside the cabinet 1, and the heat preservation chamber 12 is closely attached to the cabinet 1 and fixedly connected to the cabinet 1. The first cabinet door 2 is arranged vertically, arranged on the side of the cabinet 1 and the side of the heat preservation chamber 12, and the side of the first cabinet door 2 is rotatably connected to the cabinet 1, and its rotation axis is arranged vertically. The first door handle 3 is arranged on the side of the first cabinet door 2 and is fixedly connected to the first cabinet door 2. The heat pump 7 is arranged at the lower part of the cabinet 1 and is located below the insulation chamber 12 and is fixedly connected to the cabinet 1. The air inlet 8 is arranged on the lower surface of the insulation chamber 12, is connected to the air outlet of the heat pump 7, and is connected to the inside of the insulation chamber 12. Four windshields 9 are arranged horizontally inside the insulation chamber 12 and are fixedly connected to the insulation chamber 12. The four windshields 9 are arranged alternately to form an S shape. Four trays 10 are arranged horizontally above the four windshields 9 and are fixedly connected to the four windshields 9. A plurality of ventilation holes 11 are arranged on the upper surface of the tray 10 and are connected up and down. The exhaust port 4 is arranged on the upper surface of the insulation chamber 12 and is connected to the inside of the insulation chamber 12. The ventilation pipe 18 is arranged on the side of the insulation chamber 12, and one end is connected to the exhaust port 4. The exhaust fan 5 is arranged on the side of the insulation chamber 12 and is fixedly connected to the insulation chamber 12. The air inlet of the exhaust fan 5 is connected to the other end of the ventilation pipe 18. The dehumidification chamber 6 is arranged on the side of the insulation chamber 12 and is fixedly connected to the insulation chamber 12. The metal door is arranged on the side of the dehumidification chamber 6, and is rotatably connected to the dehumidification chamber 6, and its rotation axis is arranged vertically. The handle is arranged on the side of the metal door and is fixedly connected to the metal door. The filter plate 15 is arranged inside the dehumidification chamber 6, and is slidably connected to the dehumidification chamber 6, and its sliding direction is horizontal, perpendicular to the metal door. The desiccant 16 is placed inside the dehumidification chamber 6. The dehumidification pipe 17 is arranged inside the cabinet 1, one end of which is connected to the air outlet of the exhaust fan 5, and the other end passes through the lower surface of the dehumidification chamber 6 and is connected to the inside of the dehumidification chamber 6. The drying pipe 19 is arranged inside the cabinet 1, passing through the upper surface of the dehumidification chamber 6, one end of which is connected to the air inlet of the heat pump 7, and the other end is connected to the upper part of the dehumidification chamber 6. A plurality of ventilation ports 20 are respectively arranged on both sides of the lower part of the cabinet 1, and are connected to the inside of the cabinet 1. The controller is electrically connected to the heat pump 7 and the exhaust fan 5.

[0033] After the staff puts the food into the insulation chamber 12, the staff starts the heat pump 7 and the exhaust fan 5 through the controller, and the heat pump 7 drives the air in the heat pump 7 to pass through the heat pump 7, the air inlet 8, the interior of the insulation chamber 12, the exhaust port 4, the ventilation pipe 18, the exhaust fan 5, the dehumidification pipe 17, the dehumidification chamber 6, the drying pipe 19, the air inlet of the heat pump 7, and return to the heat pump 7. After the heat pump 7 and the exhaust fan 5 are started by the controller, the hot air flow blown out by the heat pump 7 reaches the interior of the insulation chamber 12, and the hot air flow brings out the moisture in the food, so as to maximize the utilization of the hot air flow. When the hot air flow reaches the upper part of the insulation chamber 12 with water vapor, it goes along the ventilation pipe 18, the exhaust fan 5, and the dehumidification pipe 17 to the interior of the dehumidification chamber 6, and the hot air flow passes through the desiccant 16, and the desiccant 16 absorbs the moisture in the hot air flow, and then the hot air flow passes through the drying pipe 19 to reach the air inlet of the heat pump 7. In this way, waste heat can be used more efficiently and energy consumption can be reduced. When the food is dried, the heat pump 7 and the exhaust fan 5 are turned off using the controller.

[0034] The plurality of ventilation ports 20 are all arranged in an inclined shape, and the inclination angle of the plurality of ventilation ports 20 is 45 degrees.

[0035] The 45-degree tilt setting of the vents can promote air flow, making it easier for air to flow from the bottom to the top, thereby improving ventilation. This design helps reduce moisture and helps extend the service life of the device.

[0036] It includes a second cabinet door 13 and a second door handle 14. The second cabinet door 13 is arranged horizontally and is arranged on the side of the cabinet body 1. The side of the second cabinet door 13 is rotatably connected to the cabinet body 1, and its rotation axis is arranged horizontally. The second door handle 14 is arranged on the side of the second cabinet door 13 and is fixedly connected to the second cabinet door 13.

[0037] By providing the second cabinet door 13 and the second door handle 14, the desiccant 16 can be easily replaced to ensure that the interior of the insulation chamber always maintains an appropriate humidity.

[0038] The cabinet body 1, the first cabinet door 2, the dehumidification pipe 17, the ventilation pipe 18, the drying pipe 19, and the insulation chamber 12 are all made of insulation materials.

[0039] Insulation materials can effectively isolate the temperature difference between inside and outside, reduce heat transfer, thereby improving the insulation performance of the insulation room and maintaining a stable temperature inside. It can reduce heat loss, thus reducing energy consumption and energy costs, and also helps reduce the impact on the environment.

[0040] The first cabinet door 2 and the second cabinet door 13 are both hingedly connected to the cabinet body 1 .

[0041] The hinge connection makes the connection between the first cabinet door 2 and the second cabinet door 13 and the cabinet body 1 simpler, does not require complex mechanical devices or structures, reduces manufacturing costs and improves reliability.

[0042] It includes a temperature sensor, which is arranged inside the insulation chamber 12, close to the exhaust port 4, and is electrically connected to the heat pump 7 and the controller.

[0043] The staff starts the heat pump 7 and the temperature sensor through the controller. When the temperature sensor senses that the temperature is not between 50 and 70 degrees Celsius, the temperature sensor controls the heat pump 7 through the controller to make the temperature reach 50 to 70 degrees Celsius. When the food is dried, the staff turns off the heat pump 7 and the temperature sensor through the controller.

[0044] It includes a humidity sensor, which is arranged inside the dehumidification chamber 6, close to the drying tube 19, and is electrically connected to the controller.

[0045] After the staff puts the food into the insulation room, the staff activates the humidity sensor through the controller. When the humidity sensor senses that the humidity reaches 70%RH, the humidity sensor sends a signal to the controller, allowing the staff to replace the desiccant 16 in time.

[0046] Working principle: After the staff puts the food into the insulation room and closes the door, the controller starts the heat pump 7, the exhaust fan 5, the temperature sensor, and the humidity sensor. The heat pump 7 converts the outside air into hot air flow and sends it into the insulation room 12 through the air inlet 8. The hot air flow passes through the food and absorbs the moisture therein, then enters the ventilation pipe 18 through the exhaust port 4, enters the exhaust fan 5 from the ventilation pipe 18, and then enters the dehumidification chamber 6 through the dehumidification pipe 17. The moisture in the hot air flow is absorbed by the desiccant 16, and the dried hot air flow passes through the drying pipe 19 and enters the dehumidification chamber 6 again. The food enters the heat pump 7 for reheating and is designed with a wind shield to form an S-shaped layout, which helps the hot air flow to fully contact the food and improve the heat utilization efficiency. The dried hot air flow enters the heat pump 7 for heating again to form a closed loop and reduce energy consumption. The built-in temperature and humidity sensors monitor the conditions in the insulation room in real time. When the temperature or humidity is not within the preset range, the controller will automatically adjust the operating status of the heat pump 7 to ensure the stability and optimization of the drying effect. When the food is dried, the heat pump 7 and the exhaust fan 5 are turned off by the controller, and the staff takes out the dried food.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving drying device for food processing, characterized in that: include: A cabinet body (1), a first cabinet door (2), a first door handle (3), an exhaust port (4), an exhaust fan (5), a dehumidification chamber (6), a metal door, a handle, a heat pump (7), an air inlet (8), four windshields (9), four trays (10), a plurality of ventilation holes (11), a heat preservation chamber (12), a filter plate (15), a desiccant (16), a dehumidification pipe (17), a ventilation pipe (18), a drying pipe (19), a plurality of ventilation ports (20), and a controller; The cabinet (1) is arranged on the ground; The heat preservation chamber (12) is arranged inside the cabinet (1), and the heat preservation chamber (12) is in close contact with the cabinet (1) and is fixedly connected to the cabinet (1); The first cabinet door (2) is arranged vertically, and is arranged on the side of the cabinet body (1) and the side of the insulation chamber (12); the side of the first cabinet door (2) is rotatably connected to the cabinet body (1), and its rotation axis is arranged vertically; The first door handle (3) is arranged on the side of the first cabinet door (2) and is fixedly connected to the first cabinet door (2); The heat pump (7) is arranged at the lower part of the cabinet (1) and below the insulation chamber (12), and is fixedly connected to the cabinet (1); The air inlet (8) is arranged on the lower surface of the heat preservation chamber (12), is communicated with the air outlet of the heat pump (7), and is communicated with the interior of the heat preservation chamber (12); The four wind shields (9) are transversely arranged inside the heat preservation chamber (12) and are fixedly connected to the heat preservation chamber (12). The four wind shields (9) are alternately arranged to form an S shape. The four trays (10) are respectively arranged transversely above the four windshields (9) and are respectively fixedly connected to the four windshields (9); A plurality of ventilation holes (11) are arranged on the upper surface of the tray (10) and are connected from top to bottom; The exhaust port (4) is arranged on the upper surface of the heat preservation chamber (12) and is communicated with the interior of the heat preservation chamber (12); The ventilation pipe (18) is arranged on the side of the insulation chamber (12), and one end of the ventilation pipe is connected to the exhaust port; The exhaust fan (5) is arranged on the side of the insulation chamber (12) and is fixedly connected to the insulation chamber (12); the air inlet of the exhaust fan (5) is connected to the other end of the ventilation pipe (18); The dehumidification chamber (6) is arranged on the side of the insulation chamber (12) and is fixedly connected to the insulation chamber (12); The metal door is arranged at the side of the dehumidification chamber, and is rotatably connected to the dehumidification chamber, and its rotation axis is arranged vertically; The handle is arranged on the side of the metal door and is fixedly connected to the metal door; The filter plate (15) is arranged inside the dehumidification chamber (6) and is slidably connected to the dehumidification chamber (6), and its sliding direction is horizontal and perpendicular to the metal door; The desiccant (16) is placed inside the dehumidification chamber (6); The dehumidification pipe (17) is arranged inside the cabinet (1), one end of which is connected to the air outlet of the exhaust fan (5), and the other end of which passes through the lower surface of the dehumidification chamber (6) and is connected to the interior of the dehumidification chamber (6); The drying tube (19) is arranged inside the cabinet (1), passes through the upper surface of the dehumidification chamber (6), one end of which is connected to the air inlet of the heat pump (7), and the other end of which is connected to the upper part of the dehumidification chamber; A plurality of ventilation ports (20) are respectively arranged on two side surfaces of the lower portion of the cabinet (1) and are in communication with the interior of the cabinet (1); The controller is electrically connected to the heat pump (7) and the exhaust fan (5).

2. An energy-saving drying device for food processing according to claim 1, characterized in that: The plurality of ventilation openings (20) are all arranged in an inclined shape, and the inclination angle of the plurality of ventilation openings (20) is 45 degrees.

3. The energy-saving drying device for food processing according to claim 1, characterized in that: The cabinet comprises a second cabinet door (13) and a second door handle (14); the second cabinet door (13) is arranged transversely and disposed on the side of the cabinet body (1); the side of the second cabinet door (13) is rotatably connected to the cabinet body (1), and its rotation axis is arranged transversely; the second door handle (14) is arranged on the side of the second cabinet door (13) and is fixedly connected to the second cabinet door (13).

4. The energy-saving drying device for food processing according to claim 3, characterized in that: The cabinet body (1), the first cabinet door (2), the dehumidification pipe (17), the ventilation pipe (18), the drying pipe (19), and the insulation chamber (12) are all made of insulation materials.

5. The energy-saving drying device for food processing according to claim 3, characterized in that: The first cabinet door (2) and the second cabinet door (13) are both hingedly connected to the cabinet body (1).

6. The energy-saving drying device for food processing according to claim 1, characterized in that: It comprises a temperature sensor, which is arranged inside the insulation chamber (12), close to the exhaust port (4), and is electrically connected to the heat pump (7) and the controller.

7. The energy-saving drying device for food processing according to claim 1, characterized in that: It comprises a humidity sensor, which is arranged inside the dehumidification chamber (6), close to the drying tube (19), and is electrically connected to the controller.