Multi-angle air knife device for cold storage and quick-freezing tunnel

Abstract

The utility model relates to the technical field of refrigeration houses, in particular to a multi-angle air knife device for a refrigeration house and a quick-freezing tunnel, which comprises an air supply pipe and an air return pipe, a circulating pipe is connected between the air supply pipe and the air return pipe, a circulating fan is arranged on the circulating pipe, a multi-angle air supply outlet is arranged on the air supply pipe, and the multi-angle air supply outlet is arranged on the air return pipe. The air conditioner further comprises a rime fog removing device, the rime fog removing device comprises a heating part arranged on the air supply pipe or the circulating pipe or the air return pipe, then the temperature of circulating air is increased, the low-temperature circulating air is prevented from making contact with high-humidity external air, and the rime fog phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cold storage technology, and in particular to a multi-angle air knife device for cold storage and quick-freezing tunnels. Background Technology

[0002] Currently, the main methods for heat insulation at the entrances of cold storage facilities in my country are constructing buffer rooms and using air curtains; the main method for heat insulation at the entrances and exits of quick-freezing tunnels is installing small-sized PVC curtains. Among these methods, constructing a buffer room requires two interlocking insulated doors, resulting in a large footprint and high investment; while air curtains have a lower investment, they suffer from poor insulation and cold leakage; at the entrances and exits of quick-freezing tunnels, due to limited space and the need for continuous equipment operation, conventional insulation equipment cannot be used, leading to cold leakage and frost buildup, resulting in reduced production efficiency and increased energy consumption. Air knife devices can effectively solve the problems of cold leakage and frost buildup at the entrances and exits of cold storage facilities and quick-freezing tunnels, with lower investment and smaller space requirements.

[0003] Existing multi-angle air knife devices for cold storage and quick-freezing tunnels include an air supply duct and a return air duct, with a circulation pipe connecting the air supply duct and the return air duct. A circulation fan is installed on the circulation pipe, and multi-angle air supply outlets are installed on the air supply duct. The return air duct is equipped with a return air outlet, which can effectively form isolation through the circulating air. The multi-angle air supply outlets can be louvered air supply outlets or universal nozzles, which are convenient to select and have a simple structure. However, in the case of high external air humidity, if the temperature of the circulating air is low, water droplets are easily condensed when it comes into contact with the outside air, which leads to the appearance of white fog. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-angle air knife device for cold storage and quick-freezing tunnels that avoids the phenomenon of white fog.

[0005] This utility model is achieved through the following technical solution: a multi-angle air knife device for cold storage and quick-freezing tunnels, including an air supply pipe and a return air pipe, a circulation pipe connecting the air supply pipe and the return air pipe, a circulation fan installed on the circulation pipe, a multi-angle air supply port installed on the air supply pipe, a return air port installed on the return air pipe, and a defogging device, the defogging device including a heating component installed on the air supply pipe, the circulation pipe or the return air pipe.

[0006] Furthermore, the heating component includes a heating coil disposed on the return air duct.

[0007] Furthermore, the heating assembly includes a vertical heating pipe disposed within the return air duct, and the side wall of the return air duct is provided with a fixing hole that cooperates with the vertical heating pipe, and the vertical heating pipe can be inserted into the return air duct from the return air inlet.

[0008] Furthermore, there are multiple vertical heating pipes, which are distributed in the middle of the return air duct.

[0009] Furthermore, the vertical heating pipe is also provided with a support and turbulence-disrupting structure, and the support and turbulence-disrupting device includes a transverse turbulence-disrupting component provided on the vertical heating pipe.

[0010] Furthermore, the turbulence-disrupting component includes a metal rod, and a support seat that cooperates with the metal rod is provided on the side wall of the return air duct.

[0011] The beneficial effects of this utility model are as follows: the defogging device includes a heating component installed on the air supply pipe, circulation pipe, or return air pipe, thereby increasing the temperature of the circulating air and preventing the low-temperature circulating air from contacting the high-humidity external air, thus avoiding the white fog phenomenon. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of Example 1;

[0013] Figure 2 This is a schematic diagram of the heating component structure in Example 2;

[0014] Figure 3 This is a schematic diagram of the vertical heating tube distribution in Example 2.

[0015] The components include: 1. Circulation pipe; 2. Air supply pipe; 3. Circulation fan; 4. Multi-angle air supply outlet; 5. Return air pipe; 6. Return air outlet; 7. Humidity sensor; 8. Sheet metal box; 9. Protective cover; 10. Heating coil; 11. Anti-collision net; 12. Cable; 13. Connecting plate; 14. Support rod; 15. Vertical heating tube; 16. Metal rod; 17. Support base. Detailed Implementation

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] 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 scope of protection of the present utility model.

[0018] Example 1

[0019] like Figure 1 As shown, a multi-angle air knife device for cold storage and quick-freezing tunnels is used for installation at the entrance of cold storage or the entrance / exit of quick-freezing tunnels. It includes an air supply pipe 2 and a return air pipe 5. A circulation pipe 1 connects the air supply pipe 2 and the return air pipe 5. The air supply pipe 2, the return air pipe 5, and the circulation pipe 1 are all made of stainless steel plates and welded together, which has high corrosion resistance and sealing performance. A circulation fan 3 is installed on the circulation pipe 1. The air outlet of the circulation fan 3 is connected to the air supply pipe 2, and the air inlet of the circulation fan 3 is connected to the return air pipe 5. A multi-angle air outlet 4 is installed on the air supply pipe 2. In this embodiment, the multi-angle air outlet 4 is a louvered air outlet or a universal nozzle air outlet, which can adjust the air outlet direction. A return air inlet 6 is installed on the return air pipe 5. An anti-collision net 11 is installed at the return air inlet 6 to prevent debris from entering the return air pipe 5.

[0020] It also includes a defogging device, which includes a heating component installed on the return air duct. In this embodiment, the heating component includes a heating coil 10 installed on the return air duct. The heating coil is an electric heating coil, installed at the connection between the return air duct and the circulation duct, thus providing a larger installation space and increasing the heat exchange area between the heating coil and the circulating air. A humidity sensor 7 is installed on the return air duct. The humidity sensor is selected as an SHT30 humidity sensor. A sheet metal box 8 is also installed on the return air duct to install a power supply for powering the heating coil. A protective cover 9 is installed on the outer end of the heating coil to protect the cables.

[0021] When the humidity sensor detects that the humidity of the circulating air has reached the preset value, the heating coil is turned on to heat the circulating air, thus preventing the low-temperature circulating air from coming into contact with the high-humidity outside air and thus avoiding the white fog phenomenon.

[0022] Example 2

[0023] like Figure 2-3As shown, a multi-angle air knife device for cold storage and quick-freezing tunnels differs from Embodiment 1 in that the heating component includes a vertical heating pipe 15 installed inside the return air duct. The side wall of the return air duct is machined with fixing holes that cooperate with the vertical heating pipe. The vertical heating pipe can be inserted into the return air duct from the return air inlet, and can be installed from the inside. The vertical heating pipe is parallel to the length direction of the return air inlet, thereby increasing the contact area between the vertical heating pipe and the circulating air. There are 3-4 vertical heating pipes, which are distributed in the middle of the return air duct. Specifically, the vertical heating pipe is connected to the side wall of the return air duct through a support rod 14. A connecting plate 13 is installed on the support rod. The connecting plate fits against the side wall of the return air duct, improving the connection stability with the return air duct and forming a seal.

[0024] A support and turbulence-disrupting structure is also installed on the vertical heating pipe. The support and turbulence-disrupting device includes a transverse turbulence-disrupting component that is thermally connected to the vertical heating pipe. The turbulence-disrupting component includes a metal rod 16. A support seat that mates with the metal rod is machined on the side wall of the return air duct. In this embodiment, the support seat 17 is a rubber seat. An installation hole that mates with the support seat is machined on the side wall of the return air duct. A slot that mates with the metal rod is machined on the inner end of the rubber seat. The end of the metal rod is inserted into the slot. The metal rod can be connected to the vertical heating pipe through a connecting sleeve or by welding. The support seat supports the end of the metal rod, thereby improving stability and providing heat insulation. The turbulence formed by the metal rod allows the circulating air to contact the vertical heating pipe more evenly.

[0025] Installing a protective cover 9 on the outside of the return air duct not only protects the cable 12, but also improves the deformation resistance of the return air duct.

[0026] Compared with Example 1, the vertical heating pipe in this example has a larger contact area with the circulating air, which can eliminate the white fog phenomenon more quickly. The disadvantage is that the vertical heating pipe needs to be installed one by one.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-angle air knife device for cold storage and quick-freezing tunnels, comprising an air supply pipe and a return air pipe, wherein a circulation pipe connects the air supply pipe and the return air pipe, a circulation fan is installed on the circulation pipe, a multi-angle air supply outlet is provided on the air supply pipe, and a return air outlet is provided on the return air pipe, characterized in that, It also includes a defogging device, which includes a heating component installed on the air supply duct, circulation duct, or return duct.

2. The multi-angle air knife device for cold storage and quick-freezing tunnels according to claim 1, characterized in that, The heating component includes a heating coil installed on the return air duct.

3. The multi-angle air knife device for cold storage and quick-freezing tunnels according to claim 1, characterized in that, The heating component includes a vertical heating pipe installed inside the return air duct. The side wall of the return air duct is provided with a fixing hole that cooperates with the vertical heating pipe. The vertical heating pipe can be inserted into the return air duct from the return air inlet.

4. The multi-angle air knife device for cold storage and quick-freezing tunnels according to claim 3, characterized in that, There are multiple vertical heating pipes, which are distributed in the middle of the return air duct.

5. The multi-angle air knife device for cold storage and quick-freezing tunnels according to claim 3, characterized in that, The vertical heating tube is also provided with a support and turbulence-disrupting structure, which includes a transverse turbulence-disrupting component disposed on the vertical heating tube.

6. The multi-angle air knife device for cold storage and quick-freezing tunnels according to claim 5, characterized in that, The turbulence-disrupting component includes a metal rod, and a support base that cooperates with the metal rod is provided on the side wall of the return air duct.

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