Air guide structure and impact type plate belt or mesh belt instant freezer applying same

Abstract

The utility model relates to an air guide structure and an impact type plate belt or mesh belt instant freezer applying the air guide structure. The air guide structure comprises a plurality of inverted-V-shaped flow guide plates, and a V-shaped flow guide groove located in the upper portion and a horn-shaped nozzle communicating with the bottom of the V-shaped flow guide groove are formed between every two adjacent inverted-V-shaped flow guide plates. According to the optimized air guide structure, the air speed and the air volume when cold air passes through the air guide opening can be increased, and meanwhile it is ensured that the cold air can be evenly and efficiently blown to the surface of food to be frozen, so that fast and efficient freezing of the food is achieved, and the overall performance of the instant freezer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food quick freezing, in particular to an air guide structure and an impact type plate belt or mesh belt quick freezing machine using the air guide structure. Background Art

[0002] In the food processing industry, impact plate and mesh belt quick freezers are key equipment and are widely used in the rapid freezing process of various foods. This type of quick freezer usually requires a low temperature environment to be maintained inside the insulated warehouse, generally between -35℃ and -38℃, to ensure that the food can be frozen quickly and effectively, thereby maintaining its quality and taste. In order to achieve this goal, special attention needs to be paid to the heat exchange efficiency between the cold air and the food to be frozen when designing the quick freezer.

[0003] Traditionally, in order to improve freezing efficiency, quick freezers are often equipped with an air guide device, which is located between the air outlet of the evaporator and the food to be frozen. Its main function is to guide and accelerate the cold air blown out of the evaporator, so that it blows more concentratedly and faster to the surface of the food, thereby promoting heat exchange and accelerating the freezing speed. However, in actual applications, in order to pursue a higher wind speed and air volume, the width of the air guide is often designed to be narrower. Although this approach has increased the wind speed to a certain extent, it has also brought new problems.

[0004] Specifically, although the narrow air inlet design increases the wind speed, it also significantly increases the wind resistance along the way when the cold air passes through the air inlet. This wind resistance not only consumes a lot of wind energy, but also reduces the effective utilization rate of the cold air, thus affecting the overall freezing efficiency. In order to overcome this problem, some manufacturers try to compensate for the loss of air volume by increasing the installed power of the evaporator fan, but this undoubtedly increases the manufacturing cost and operating cost of the equipment, which is not conducive to the widespread application and long-term economic benefits of quick freezers.

[0005] In summary, the existing impact plate and mesh belt quick freezers have obvious technical bottlenecks in the design of air guide devices, that is, how to effectively reduce wind resistance along the way, improve freezing efficiency, and reduce equipment costs while ensuring sufficient wind speed and air volume. Therefore, it is necessary to develop a new air guide device or improve the existing air guide technology to solve the above problems and meet the food processing industry's demand for efficient and energy-saving quick freezing equipment. Utility Model Content

[0006] In order to solve the above technical problems, the present application provides an air guide structure and an impact-type plate belt or mesh belt quick freezer using the same.

[0007] To achieve the above-mentioned purpose, the present application provides an air guide structure, including a plurality of inverted V-shaped guide plates arranged at the bottom of the evaporator and arranged evenly and parallelly along the moving direction of the frozen food conveyor belt, the inverted V-shaped guide plates extending horizontally in a direction perpendicular to the moving direction of the frozen food conveyor belt, and a V-shaped guide groove located at the upper part and a trumpet-shaped nozzle connected to the bottom of the V-shaped guide groove are formed between adjacent inverted V-shaped guide plates. The structural design of the trumpet-shaped nozzle increases the cross-sectional area of ​​the air outlet. This air guide port has a greater vacuum degree and a greater suction capacity, which can enable the surface of the food to be frozen to obtain a larger amount of air, thereby achieving the purpose of rapid freezing. In addition, after multiple tests and comparisons, the structural design of the trumpet-shaped nozzle of the present application has the lowest comprehensive cost of the quick freezer while ensuring the same air volume.

[0008] As a further improvement of the present application, the distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt is 10 mm to 60 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt. Preferably, the distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt is 25 mm to 45 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt.

[0009] As a further improvement of the present application, the length L of the side strip plate forming the trumpet-shaped nozzle is 25 mm to 60 mm, and the angle α of the trumpet-shaped nozzle is 4° to 16°. Preferably, the length L of the side strip plate forming the trumpet-shaped nozzle is 40 mm to 50 mm, and the angle α of the trumpet-shaped nozzle is 5° to 10°. Furthermore, the cross-sectional shape of the side strip plate forming the trumpet-shaped nozzle can also be designed as a small arc transition shape.

[0010] As a further improvement of the present application, the height of the V-shaped guide groove is 30 mm to 80 mm, and the angle of the V-shaped guide groove is 25° to 45°.

[0011] As a further improvement of the present application, a straight flow guide channel is provided between the bottom of the V-shaped flow guide groove and the top of the trumpet-shaped nozzle. Preferably, the width t of the straight flow guide channel is 5 mm to 10 mm, and the height h of the straight flow guide channel is 6 mm to 30 mm.

[0012] As a further improvement of the present application, the cross-section formed by the first side strip plate forming the V-shaped guide groove and the top strip plate of the inverted V-shaped guide plate is any one of a folded edge shape, an arc transition shape, a multi-arc transition shape, and an arc shape.

[0013] To achieve the above objectives, the present application also provides an impact-type plate belt or mesh belt quick freezer, which includes an air guide structure as described in any one of the above items.

[0014] The beneficial effect of the present application is that the present application provides an air guide structure and an impact-type plate belt or mesh belt quick freezer using the same, which improves the wind speed and air volume of the cold air passing through the air guide port by optimizing the air guide structure, while ensuring that the cold air can be blown evenly and efficiently onto the surface of the food to be frozen, thereby achieving rapid and efficient freezing of the food and improving the overall performance of the quick freezer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural schematic diagram of an impact type plate belt or mesh belt quick freezer;

[0016] Figure 2 A schematic diagram of a partial structure of an air guide structure according to an embodiment;

[0017] Figure 3 is a structural schematic diagram of an air guide structure of another embodiment;

[0018] Figure 4 is a structural schematic diagram of an air guide structure of another embodiment;

[0019] Figure 5 Schematic diagram of the structure of the wind guide structure of another embodiment.

[0020] In the figure: 1. air guide structure; 11. inverted V-shaped guide plate; 2. frozen product conveyor belt; 3. evaporator; 4. fan. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0022] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0023] The present application provides a wind guide structure 1, such as Figure 1 As shown, it includes a plurality of inverted V-shaped guide plates 11 arranged at the bottom of the evaporator 3 and arranged evenly and parallelly along the moving direction of the frozen food conveyor belt 2. The inverted V-shaped guide plates 11 extend horizontally in a direction perpendicular to the moving direction of the frozen food conveyor belt 2. A V-shaped guide groove located at the upper part and a trumpet-shaped nozzle connected to the bottom of the V-shaped guide groove are formed between adjacent inverted V-shaped guide plates 11.

[0024] In an optional embodiment, the distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt 2 is 10 mm to 60 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt 2. Preferably, the distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt 2 is 25 mm to 45 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt 2.

[0025] In an optional embodiment, the length L of the side strip plate forming the trumpet-shaped nozzle is 25 mm to 60 mm, and the angle α of the trumpet-shaped nozzle is 4° to 16°. Preferably, the length L of the side strip plate forming the trumpet-shaped nozzle is 40 mm to 50 mm, and the angle α of the trumpet-shaped nozzle is 5° to 10°.

[0026] In an optional implementation scheme, the height of the V-shaped guide groove is 30 mm to 80 mm, and the angle of the V-shaped guide groove is 25° to 45°.

[0027] In an optional embodiment, a straight flow guide channel is provided between the bottom of the V-shaped flow guide groove and the top of the trumpet-shaped nozzle. Preferably, the width t of the straight flow guide channel is 5 mm to 10 mm, and the height h of the straight flow guide channel is 6 mm to 30 mm.

[0028] In an optional embodiment, the cross-section formed by the first side strip plate forming the V-shaped guide groove and the top strip plate of the inverted V-shaped guide plate 11 is any one of a folded edge shape, an arc transition shape, a multi-arc transition shape, and an arc shape, such as Figure 1 to Figure 5 shown.

[0029] The present application also provides an impact type plate belt or mesh belt quick freezer, such as Figure 1 As shown, it includes an evaporator 3, a fan 4 connected to the evaporator 3, and an air guide structure 1 arranged at the bottom of the evaporator 3. The air guide structure 1 is the air guide structure 1 of the impact plate belt or mesh belt quick freezer mentioned above.

[0030] In summary, the air guide structure 1 provided in the present application can draw more cold air from the evaporator 3, so that the outer surface of the food to be frozen can obtain a larger air volume, so that the cold air blown out by the evaporator 3 can be blown on the surface of the food to be frozen with a larger air volume, fully carrying out heat exchange and achieving the purpose of rapid freezing.

[0031] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A wind guide structure, characterized in that: It includes a plurality of inverted V-shaped guide plates which are arranged at the bottom of the evaporator and are evenly arranged in parallel along the moving direction of the frozen food conveyor belt. The inverted V-shaped guide plates extend horizontally in a direction perpendicular to the moving direction of the frozen food conveyor belt. A V-shaped guide groove located at the upper part and a trumpet-shaped nozzle connected to the bottom of the V-shaped guide groove are formed between adjacent inverted V-shaped guide plates.

2. The wind guide structure according to claim 1, characterized in that: The distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt is 10 mm to 60 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt.

3. The wind guide structure according to claim 2, characterized in that: The distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt is 25 mm to 45 mm, and the distance is the shortest vertical distance between the bottom of the trumpet-shaped nozzle and the frozen food conveyor belt.

4. The wind guide structure according to claim 1, characterized in that: The length L of the side strip plate forming the trumpet-shaped nozzle is 25 mm to 60 mm, and the angle α of the trumpet-shaped nozzle is 4° to 16°.

5. The wind guide structure according to claim 4, characterized in that: The length L of the side strip plate forming the trumpet-shaped nozzle is 40 mm to 50 mm, and the angle α of the trumpet-shaped nozzle is 5° to 10°.

6. The wind guide structure according to claim 1, characterized in that: The height of the V-shaped guide groove is 30 mm to 80 mm, and the angle of the V-shaped guide groove is 25° to 45°.

7. The wind guide structure according to claim 1, characterized in that: A straight flow guide channel is provided between the bottom of the V-shaped flow guide groove and the top of the trumpet-shaped nozzle.

8. The air guide structure according to claim 7, characterized in that: The width t of the straight flow guiding channel is 5 mm to 10 mm, and the height h of the straight flow guiding channel is 6 mm to 30 mm.

9. The wind guide structure according to any one of claims 1 to 6, characterized in that: The cross-section formed by the first side strip plate forming the V-shaped guide groove and the top strip plate of the inverted V-shaped guide plate is in any one of a folded edge shape, an arc transition shape, a multi-arc transition shape, and an arc shape.

10. An impact type plate belt or mesh belt quick freezer, characterized in that: The impact-type plate belt or mesh belt quick freezer comprises the air guide structure described in any one of claims 1-9.

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