Novel top-bottom air duct of dryer

Abstract

The utility model discloses a novel dryer up-down air duct which comprises a bottom frame, the top of the bottom frame is communicated with a plurality of longitudinal ventilation pipelines, the tops of the longitudinal ventilation pipelines are communicated with a top frame, and the interior of the bottom frame, the interior of the top frame and the interior of the longitudinal ventilation pipelines are all arranged to be in a hollow state and are communicated with one another. A plurality of hot air holes are formed in the surface of the longitudinal ventilation pipeline, hot air flowing in the longitudinal ventilation pipeline can be discharged into the equipment through the hot air holes, and a plurality of angle irons are fixedly connected to the inner side of the longitudinal ventilation pipeline. Through the hollow and mutually communicated design of the bottom frame, the top frame and the longitudinal ventilation pipeline, an efficient hot air circulation system is formed, hot air flow can be evenly distributed in the whole equipment, and therefore the drying efficiency is improved, and meanwhile the drying effect is improved. And hot air holes in the surfaces of the longitudinal ventilation pipelines can directly discharge hot air flow into the equipment, and the drying effect is further enhanced.

Description

Technical Field

[0001] This utility model relates to the field of food drying technology, specifically to a novel top-to-bottom air duct in a dryer. Background Technology

[0002] Food drying is an important food processing step aimed at extending the shelf life of food, preventing food spoilage and bacterial growth, and making food easier to store and transport. Food drying mainly achieves the purpose of preservation and extending shelf life by removing moisture from the food. During the drying process, the moisture in the food gradually evaporates, thereby reducing its moisture content and making it difficult for microorganisms to survive and reproduce, thus achieving the effect of preservation.

[0003] For example, the patent application number published on the China Patent Network is 202223557722.6, and the patent name is: A food drying machine, including a drying chamber. The drying chamber is provided with at least two layers of food racks. A support mechanism is installed on the food racks. The support mechanism is used to enable the food racks to rotate around themselves. Food is put into the drying chamber from the top. The food first falls on the upper food rack. When the upper food rack tilts, the food is gradually poured onto the lower food rack. This process is repeated to ensure that all food racks are evenly covered with food to improve the spreading efficiency of the food.

[0004] However, the existing dryers have a relatively simple structure, mainly drying by directly injecting high-temperature airflow into the equipment. The distribution range of the airflow is easily affected by the installation location of the equipment, resulting in the food near the equipment being over-dried.

[0005] Therefore, it is necessary to redesign and modify the top-to-bottom air duct of the new dryer. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a novel top-to-bottom air duct for a dryer, which has the advantage of improving drying effect. It solves the problem that the existing dryers have a relatively simple structure, mainly relying on direct injection of high-temperature airflow into the equipment for purging and drying. However, the distribution range of the airflow is easily affected by the installation position of the equipment, resulting in the food near the equipment being over-dried.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel top-to-bottom air duct for a dryer, including a bottom frame;

[0008] The bottom frame has several longitudinal ventilation ducts connected to its top, and the top of the longitudinal ventilation ducts is connected to a top frame. The bottom frame, top frame, and longitudinal ventilation ducts are all hollow and interconnected. The surface of the longitudinal ventilation ducts has several hot air holes, which can discharge the hot air flowing inside the longitudinal ventilation ducts into the equipment.

[0009] As a preferred embodiment of this invention, a plurality of angle irons are fixedly connected to the inner side of the longitudinal ventilation duct. The angle irons are located at the bottom of the hot air holes and are capable of supporting the tray used to carry food.

[0010] As a preferred embodiment of this utility model, a dehumidification port is provided on the left side of the bottom frame, and a dehumidification door for sealing the dehumidification port is hinged inside the bottom frame.

[0011] As a preferred embodiment of this utility model, a heat circulation door is hinged to the right side inside the bottom frame, and the heat circulation door can divide the space inside the bottom frame after being sealed.

[0012] As a preferred embodiment of this utility model, a connection port is provided on the right side of the front of the bottom frame, and the connection port is used to connect to an external heat pump device.

[0013] As a preferred embodiment of this invention, the spacing between the angle irons on the surface of the longitudinal ventilation duct is 11 cm, and the number of angle irons on one side of the longitudinal ventilation duct is 16.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model forms a highly efficient hot air circulation system through the hollow and interconnected design of the bottom frame, top frame and longitudinal ventilation duct, which allows the hot airflow to be evenly distributed throughout the entire equipment, thereby improving the drying efficiency. At the same time, the hot air holes on the surface of the longitudinal ventilation duct can directly discharge the hot airflow into the equipment, further enhancing the drying effect.

[0016] 2. The angle irons fixedly connected to the inside of the longitudinal ventilation duct in this utility model not only serve to reinforce the structure, but more importantly, they can support the trays used to carry food, so that the trays can be placed stably on the longitudinal ventilation ducts, ensuring that the food can be dried evenly by the hot air flow. At the same time, the spacing and number of angle irons are reasonably designed to meet the needs of trays of different sizes and quantities.

[0017] 3. This utility model, through the design of the vent on the left side of the bottom frame and the internally hinged vent door, enables the equipment to expel moisture in a timely manner during the drying process, keeping the internal environment dry. This helps to speed up the drying process and improve the drying quality. At the same time, the vent door can seal the vent to prevent external air and moisture from entering the equipment, ensuring the stability and continuity of the drying process.

[0018] 4. This utility model features a right-side hinged hot air circulation door inside the bottom frame, which can divide the space inside the bottom frame after sealing. This helps to optimize the flow path of hot air inside the equipment, improve the utilization rate of hot air and drying efficiency. At the same time, the hot air circulation door can be opened or closed as needed to adapt to different drying requirements.

[0019] 5. The connection port on the right side of the bottom frame allows the device to be connected to an external heat pump, which simplifies the installation and commissioning process and improves the flexibility and applicability of the device. By connecting to an external heat pump, the device can obtain a stable heat source supply, ensuring the smooth progress of the drying process.

[0020] 6. This utility model, through the design of the spacing and number of angle irons on the surface of the longitudinal ventilation duct, can ensure the stability and uniformity of the trays and food during the drying process, which not only improves the drying efficiency and quality, but also makes the equipment applicable to trays and food of different sizes and shapes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rear view of the structure of this utility model.

[0024] In the diagram: 1. Bottom frame; 2. Longitudinal ventilation duct; 3. Top frame; 4. Hot air vent; 5. Angle iron; 6. Exhaust outlet; 7. Exhaust door; 8. Heat circulation door; 9. Connection port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 3As shown, the novel top-to-bottom air duct of the dryer provided by this utility model includes a bottom frame 1;

[0027] The top of the bottom frame 1 is connected to several longitudinal ventilation ducts 2, and the top of the longitudinal ventilation ducts 2 is connected to the top frame 3. The bottom frame 1, the top frame 3 and the longitudinal ventilation ducts 2 are all hollow and interconnected. The surface of the longitudinal ventilation ducts 2 is provided with several hot air holes 4, which can discharge the hot air flowing inside the longitudinal ventilation ducts 2 into the equipment.

[0028] refer to Figure 2 Several angle irons 5 are fixedly connected to the inner side of the longitudinal ventilation duct 2. The angle irons 5 are located at the bottom of the hot air hole 4 and can support the tray used to carry food.

[0029] As a technical optimization of this utility model, the angle irons 5 fixedly connected to the inner side of the longitudinal ventilation duct 2 not only play a role in reinforcing the structure, but more importantly, they can support the tray used to carry food, so that the tray can be placed stably on the longitudinal ventilation duct 2, ensuring that the food can be dried evenly by the hot air flow. At the same time, the spacing and number of angle irons 5 are reasonably designed to meet the needs of trays of different sizes and quantities.

[0030] refer to Figure 2 A vent 6 is provided on the left side of the bottom frame 1, and a vent door 7 is hinged inside the bottom frame 1 to seal the vent 6.

[0031] As a technical optimization of this utility model, the design of the vent 6 on the left side of the bottom frame 1 and the internally hinged vent 7 enables the equipment to expel moisture in a timely manner during the drying process, keeping the internal environment dry. This helps to speed up the drying process and improve the drying quality. At the same time, the vent 7 can seal the vent 6 to prevent external air and moisture from entering the equipment, ensuring the stability and continuity of the drying process.

[0032] refer to Figure 3 A heat circulation door 8 is hinged to the right side inside the bottom frame 1. After being sealed, the heat circulation door 8 can divide the space inside the bottom frame 1.

[0033] As a technical optimization of this utility model, the design of the right-side hinged hot circulation door 8 inside the bottom frame 1 can divide the space inside the bottom frame 1 after sealing, which helps to optimize the flow path of hot air inside the equipment, improve the hot air utilization rate and drying efficiency. At the same time, the hot circulation door 8 can be opened or closed as needed to adapt to different drying requirements.

[0034] refer to Figure 2A connection port 9 is provided on the right side of the front of the bottom frame 1. The connection port 9 is used to connect to an external heat pump device.

[0035] As a technical optimization of this utility model, the connection port 9 opened on the right side of the front of the bottom frame 1 enables the equipment to be connected to an external heat pump device. This not only simplifies the equipment installation and debugging process, but also improves the flexibility and applicability of the equipment. By connecting to an external heat pump device, the equipment can obtain a stable heat source supply, ensuring the smooth progress of the drying process.

[0036] refer to Figure 1 The spacing between the angle irons 5 on the surface of the longitudinal ventilation duct 2 is 11 cm, and the number of angle irons 5 on one side of the longitudinal ventilation duct 2 is 16.

[0037] As a technical optimization of this utility model, the spacing and number of angle irons 5 on the surface of the longitudinal ventilation duct 2 can ensure the stability and uniformity of the tray and food during the drying process, which not only improves the drying efficiency and quality, but also makes the equipment applicable to trays and food of different sizes and shapes.

[0038] The working principle and usage process of this utility model: The overall air duct structure of the new dryer consists of a bottom frame 1, longitudinal ventilation ducts 2, and a top frame 3. The interiors of these components are all hollow and interconnected, forming a complete hot air circulation system. At the start of operation, hot air from an external heat source, possibly a heat pump or other heating device, enters the dryer through the right-side connection port 9 on the front of the bottom frame 1. This connection port 9 is specifically designed for connection to an external heat pump to ensure a stable heat supply. After entering the bottom frame 1, the hot air begins to flow upwards through several longitudinal ventilation ducts 2. These longitudinal ventilation ducts 2 are evenly distributed on the top of the bottom frame 1, and their surfaces are provided with several hot air holes 4. The function of these hot air holes 4 is to discharge the hot air flowing inside the longitudinal ventilation ducts 2 into the equipment, thereby achieving uniform drying of the food. During the upward flow of the hot air, several... Angle irons 5 not only reinforce the structure of the longitudinal ventilation duct 2, but more importantly, they are located at the bottom of the hot air vents 4, supporting the trays used to hold food. The food on the trays can then directly receive the hot airflow from the hot air vents 4, achieving efficient drying. As the hot air continuously circulates and flows inside the equipment, the moisture in the food gradually evaporates. To ensure timely removal of moisture during the drying process, a vent 6 is provided on the left side of the bottom frame 1. This vent 6 can be sealed or opened via an internal vent door 7. When dehumidification is needed, the vent door 7 is opened, and moisture is discharged outside the equipment through the vent 6. Furthermore, a hot air circulation door 8 is hinged to the right side inside the bottom frame 1. This hot air circulation door 8, when sealed, divides the space inside the bottom frame 1. When dehumidification is needed, the hot air circulation door 8 is closed, which helps optimize the flow path of hot air inside the equipment and improves dehumidification efficiency.

[0039] In summary, the new dryer's top-to-bottom air duct, through the hollow and interconnected design of the bottom frame 1, top frame 3, and longitudinal ventilation duct 2, forms a highly efficient hot air circulation system, allowing the hot airflow to be evenly distributed throughout the entire equipment, thereby improving drying efficiency. At the same time, the hot air holes 4 on the surface of the longitudinal ventilation duct 2 can directly discharge the hot airflow into the equipment, further enhancing the drying effect.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of dryer with an upward-downward air duct, including a bottom frame (1); Its features are: The bottom frame (1) is connected to a number of longitudinal ventilation ducts (2) at the top, and the top of the longitudinal ventilation ducts (2) is connected to a top frame (3). The bottom frame (1), the top frame (3) and the longitudinal ventilation ducts (2) are all hollow and interconnected. The surface of the longitudinal ventilation ducts (2) is provided with a number of hot air holes (4). The hot air holes can discharge the hot air flowing inside the longitudinal ventilation ducts (2) into the equipment.

2. The novel top-to-bottom air duct of the dryer according to claim 1, characterized in that: Several angle irons (5) are fixedly connected to the inner side of the longitudinal ventilation duct (2). The angle irons (5) are located at the bottom of the hot air hole (4). The angle irons (5) can lift the tray used to carry food.

3. The novel top-to-bottom air duct of the dryer according to claim 1, characterized in that: The bottom frame (1) has a vent (6) on the left side, and the bottom frame (1) has a vent door (7) hinged inside for sealing the vent (6).

4. The novel top-to-bottom air duct of the dryer according to claim 1, characterized in that: A heat circulation door (8) is hinged to the right side inside the bottom frame (1). The heat circulation door (8) can divide the space inside the bottom frame (1) after being sealed.

5. The novel top-to-bottom air duct of the dryer according to claim 1, characterized in that: The bottom frame (1) has a connection port (9) on the right side of the front, which is used to connect to an external heat pump device.

6. The novel top-to-bottom air duct of the dryer according to claim 2, characterized in that: The spacing between the angle irons (5) on the surface of the longitudinal ventilation duct (2) is 11 cm, and the number of angle irons (5) on one side of the longitudinal ventilation duct (2) is 16.

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