Anti-condensation structure for low-temperature tunnel line

Abstract

The utility model discloses a low-temperature tunnel line anti-condensation structure, which comprises a low-temperature tunnel line, a tunnel box body, an inlet and an outlet which are arranged on two sides of the tunnel box body, and an air curtain device, the air curtain devices are arranged at the inlet and the outlet and fixedly connected with a shell of the low-temperature tunnel line in a sealed mode, and gaps only allowing workpieces to pass through are formed between the air curtain devices and a conveying belt of the low-temperature tunnel line. An air blowing guide assembly is installed in the air curtain device and communicates with an external dry air source through a dry air pipe, dry airflow blown out by the air blowing guide assembly forms a continuous air curtain, and the continuous air curtain is blown out from the gap to prevent external wet and hot air from entering the tunnel box. The tunnel box can effectively prevent external humid and hot air from entering the tunnel box, the condensation phenomenon in the tunnel box is obviously reduced, the visibility in the tunnel box is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature tunnel lines, in particular to a low-temperature tunnel line anti-condensation structure. Background Art

[0002] In the process of industrial production, especially in the food and pharmaceutical industries, low-temperature tunnel lines are widely used. However, during the operation of low-temperature tunnel lines, a key problem is often encountered, that is, the external hot and humid air penetrates into the box through the inlet and outlet of the tunnel line, causing condensation on the surface with lower internal temperature. Condensation will not only reduce the visibility inside the equipment and affect production efficiency, but may also cause product quality to decline or even damage.

[0003] At present, in order to reduce condensation, a common practice is to introduce dry air into the box of the low-temperature tunnel line to maintain a certain positive pressure, thereby preventing the invasion of external moisture. Although this method can inhibit the occurrence of condensation to a certain extent, its effect is limited, because even if a positive pressure is formed inside the box, hot and humid air can still enter the box through the inlet and outlet and the movement of the circulating air in the box, resulting in the occurrence of condensation inside the box. Therefore, a low-temperature tunnel line anti-condensation structure is urgently needed. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a low-temperature tunnel line anti-condensation structure.

[0005] The utility model discloses a low-temperature tunnel line anti-condensation structure, comprising a low-temperature tunnel line, which comprises a tunnel box body and an inlet and an outlet arranged on both sides of the tunnel box body, and also comprises an air curtain device;

[0006] The air curtain device is arranged at the inlet and outlet positions, the air curtain device is fixedly and sealedly connected to the shell of the low-temperature tunnel line, and forms a gap between the air curtain device and the conveyor belt of the low-temperature tunnel line for only the workpiece to pass through;

[0007] A blowing guide assembly is installed in the wind curtain device, and the blowing guide assembly is connected to an external dry air source through a dry air pipe. The dry airflow blown out by the blowing guide assembly forms a continuous wind curtain and is blown out from the gap to prevent external hot and humid air from entering the tunnel box.

[0008] As a further improvement of the utility model, the wind curtain device comprises a wind curtain sheet metal shell, and the wind curtain sheet metal shell is in the shape of a right-angled trapezoid;

[0009] The wind curtain sheet metal shells on both sides are symmetrically distributed at the inlet and outlet positions, and the inclined surfaces of the wind curtain sheet metal shells on both sides are located at the end away from the tunnel box body, the blowing guide assembly is placed in the wind curtain sheet metal shell and installed on the inclined surface, the blowing port of the blowing guide assembly is set toward the gap, and the blowing direction of the blowing guide assembly forms an acute angle with the conveyor belt.

[0010] As a further improvement of the utility model, the blowing guide assembly is a wind knife, the wind knife is installed on the inclined surface, and the width of the wind knife is consistent with the width of the conveyor belt; the wind knife is internally connected to the dry air pipe, and the dry air pipe is connected to the external dry air source after passing through the air curtain sheet metal shell;

[0011] The air blowing port of the wind knife is arranged corresponding to the direction of the gap, and an acute angle is formed between the air blowing direction of the wind knife and the conveyor belt.

[0012] As a further improvement of the utility model, the blowing guide assembly is a blowing nozzle, and a plurality of the blowing nozzles are arranged side by side on the inclined surface along the width direction of the conveyor belt;

[0013] The plurality of air blowing nozzles are all connected to the dry air pipe, and the dry air pipe is connected to the external dry air source after passing through the air curtain sheet metal shell. The air blowing outlets of the plurality of air blowing nozzles are arranged toward the gap, and an acute angle is formed between the air blowing directions of the plurality of air blowing nozzles and the conveyor belt.

[0014] As a further improvement of the present invention, the acute angle is 30 degrees to 60 degrees.

[0015] As a further improvement of the present invention, the number of the dry air pipe is at least one.

[0016] As a further improvement of the present invention, the height of the gap is matched with the height of the workpiece.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model has a simple structure and is easy to install. By installing air curtain devices at the inlet and outlet positions of the low-temperature tunnel line, and cooperating with the blowing guide component and the dry air pipe inside the air curtain device, the dry gas blown out by the blowing guide component forms an air curtain and is continuously blown out from the gap, which can effectively prevent external hot and humid air from entering the interior of the tunnel box, significantly reduce the occurrence of condensation inside the tunnel box, improve the visibility inside the tunnel box, and improve production efficiency.

[0019] The utility model can adjust the air volume of the blowing guide component by adjusting the drying air volume and the number of drying air pipes to meet the needs of different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of a low-temperature tunnel line anti-condensation structure disclosed in an embodiment of the utility model;

[0021] Figure 2 It is a side cross-sectional view of the installation of a low-temperature tunnel line anti-condensation structure disclosed in an embodiment of the utility model;

[0022] Figure 3 A schematic structural diagram of an air curtain device of a low-temperature tunnel line anti-condensation structure disclosed in an embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of an air curtain device at another angle of the low-temperature tunnel line anti-condensation structure disclosed in an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Low temperature tunnel line; 1-1. Tunnel box; 1-2. Conveyor belt; 1-3. Shell;

[0026] 2. Air curtain device; 2-1. Air curtain sheet metal shell; 2-2. Gap; 2-3. Air knife; 2-4. Dry air duct. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0031] like Figure 1-2 As shown, a low-temperature tunnel line anti-condensation structure provided by the utility model includes a low-temperature tunnel line 1 and an air curtain device 2, wherein the low-temperature tunnel line 1 includes a tunnel box 1-1 and an inlet and an outlet arranged on both sides of the tunnel box; the air curtain device 2 is arranged at the inlet and outlet positions, the air curtain device 2 is fixedly and sealedly connected to the shell 1-3 of the low-temperature tunnel line 1, and a gap 2-2 is formed between the air curtain device 2 and the conveyor belt 1-2 of the low-temperature tunnel line 1 for only the passage of workpieces; a blowing guide assembly is installed in the air curtain device 2, and the blowing guide assembly is connected to an external dry air source through a dry air pipe 2-4, and the dry airflow blown out by the blowing guide assembly forms a continuous air curtain, and is blown out from the gap 2-2 to prevent external hot and humid air from entering the tunnel box 1-1.

[0032] In this embodiment, by installing an air curtain device at the inlet and outlet of the low-temperature tunnel line, cooperating with the blowing guide assembly and the dry air pipe inside the low-temperature tunnel line, the dry gas blown out by the blowing guide assembly forms an air curtain and is continuously blown out from the gap, which can effectively prevent the external hot and humid air from entering the tunnel box, significantly reduce the occurrence of condensation inside the tunnel box, improve the visibility inside the tunnel box, and improve production efficiency.

[0033] Specific:

[0034] Embodiment 1:

[0035] like Figure 3 , 4As shown, in the above embodiment, preferably, the wind curtain device 2 includes a wind curtain sheet metal shell 2-1, which is in the shape of a right-angled trapezoid. During actual installation, the wind curtain sheet metal shells 2-1 on both sides are symmetrically distributed at the inlet and outlet positions. The wind curtain sheet metal shells 2-1 on both sides are right-angled edges on the side close to the tunnel box 1-1, and the wind curtain sheet metal shells 2-1 on both sides are inclined surfaces on the side away from the tunnel box 1-1. The bottom of the wind curtain sheet metal shells 2-1 on both sides and the right-angled edges on the side close to the tunnel box 1-1 are fixedly sealed and connected to the shell 1-3 of the low-temperature tunnel line 1, and the fixedly sealed connection includes a welding connection. The blowing guide assembly is placed in the wind curtain sheet metal shell 2-1 and installed on the inclined surface. The blowing port of the blowing guide assembly is arranged toward the gap 2-2, and the blowing direction of the blowing guide assembly forms an acute angle with the conveyor belt 1-2.

[0036] In the above embodiment, preferably, the blowing guide component is a wind knife 2-3, which is installed on the inclined plane, and the width of the wind knife 2-3 is consistent with the width of the conveyor belt 1-2. The wind knife 2-3 is internally connected to the dry air pipe 2-4, and the dry air pipe 2-4 is connected to the external dry air source after passing through the air curtain sheet metal shell 2-1; the blowing port of the wind knife 2-3 is set in the direction corresponding to the gap 2-2, and the blowing direction of the wind knife 2-3 forms an acute angle with the conveyor belt 1-2.

[0037] In the above embodiment, preferably, the acute angle is 30-60 degrees, that is, the blowing direction of the wind knife 2-3 forms an acute angle of 30-60 degrees with the conveyor belt 1-2. In this embodiment, the setting of the acute angle can make the dry wind blown by the wind knife 2-3 enter the air outside the box after being refracted by the conveyor belt 1-2, so as to effectively block the external hot and humid air.

[0038] In the above embodiment, preferably, the number of dry air pipes 2-4 is at least one. In this embodiment, the bottom ends of the three dry air pipes 2-4 are respectively connected to the wind knives 2-3, and the top ends of the three dry air pipes 2-4 pass through the top of the air curtain sheet metal shell 2-1 and are connected to the external dry air source. In this embodiment, by adjusting the dry air volume and the number of dry air pipes 2-4, the air volume of the blowing guide assembly can be adjusted to meet different scene requirements.

[0039] In the above embodiment, preferably, the height of the gap 2 - 2 is adapted to the height of the workpiece.

[0040] In the above embodiment, preferably, the gap 2 - 2 is formed at the bottom end of one side of the inclined surface of the air curtain sheet metal shell 2 - 1 .

[0041] In the above embodiment, preferably, the external dry gas source includes a gas station or an air pump, and may also include a dry gas source storage tank already installed in the plant.

[0042] Embodiment 2:

[0043] In the above embodiment, preferably, the blowing guide component is a blowing nozzle, and a plurality of blowing nozzles (not shown in the figure) are arranged side by side on the inclined plane along the width direction of the conveyor belt 1-2; the plurality of blowing nozzles are connected to the dry air pipe 2-4, and the dry air pipe 2-4 is connected to the external dry air source after passing through the wind curtain sheet metal shell 2-1, and the blowing outlets of the plurality of blowing nozzles are arranged toward the gap 2-2, and the blowing directions of the plurality of blowing nozzles form an acute angle with the conveyor belt 1-2, and the acute angle is 30 degrees to 60 degrees.

[0044] In the above embodiment, preferably, the width of the plurality of blowing nozzles arranged side by side is consistent with the width of the transmission belt 1 - 2 .

[0045] In the above embodiment, preferably, the structure and installation method of the air curtain sheet metal shell 2-1 and the height of the gap 2-2 are consistent with those in Embodiment 1, and are not described in detail here.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-temperature tunnel line anti-condensation structure, comprising a low-temperature tunnel line, which comprises a tunnel box and an inlet and an outlet arranged on both sides of the tunnel box, characterized in that: Also included is an air curtain device; The air curtain device is arranged at the inlet and outlet positions, the air curtain device is fixedly and sealedly connected to the shell of the low-temperature tunnel line, and forms a gap between the air curtain device and the conveyor belt of the low-temperature tunnel line for only the workpiece to pass through; A blowing guide assembly is installed in the wind curtain device, and the blowing guide assembly is connected to an external dry air source through a dry air pipe. The dry airflow blown out by the blowing guide assembly forms a continuous wind curtain and is blown out from the gap to prevent external hot and humid air from entering the tunnel box.

2. The low-temperature tunnel line anti-condensation structure according to claim 1, characterized in that: The wind curtain device comprises a wind curtain sheet metal shell, and the wind curtain sheet metal shell is in the shape of a right-angled trapezoid; The wind curtain sheet metal shells on both sides are symmetrically distributed at the inlet and outlet positions, and the inclined surfaces of the wind curtain sheet metal shells on both sides are located at the end away from the tunnel box body, the blowing guide assembly is placed in the wind curtain sheet metal shell and installed on the inclined surface, the blowing port of the blowing guide assembly is set toward the gap, and the blowing direction of the blowing guide assembly forms an acute angle with the conveyor belt.

3. The low-temperature tunnel line anti-condensation structure according to claim 2, characterized in that: The blowing guide component is an air knife, which is installed on the inclined plane, and the width of the air knife is consistent with the width of the conveyor belt; the air knife is internally connected to the dry air pipe, and the dry air pipe is connected to the external dry air source after passing through the air curtain sheet metal shell; The air blowing port of the wind knife is arranged corresponding to the direction of the gap, and an acute angle is formed between the air blowing direction of the wind knife and the conveyor belt.

4. The low-temperature tunnel line anti-condensation structure according to claim 2, characterized in that: The blowing guide assembly is a blowing nozzle, and a plurality of the blowing nozzles are arranged side by side on the inclined plane along the width direction of the conveyor belt; The plurality of air blowing nozzles are all connected to the dry air pipe, and the dry air pipe is connected to the external dry air source after passing through the air curtain sheet metal shell. The air blowing outlets of the plurality of air blowing nozzles are arranged toward the gap, and an acute angle is formed between the air blowing directions of the plurality of air blowing nozzles and the conveyor belt.

5. The low-temperature tunnel line anti-condensation structure according to any one of claims 2 to 4, characterized in that: The acute angle is 30 degrees to 60 degrees.

6. The low-temperature tunnel line anti-condensation structure according to claim 1, characterized in that: The number of the dry air pipes provided is at least one.

7. The low-temperature tunnel line anti-condensation structure according to claim 1, characterized in that: The height of the gap is adapted to the height of the workpiece.

Images