KR20210022339A - air curtain apparatus for cold storage warehouse - Google Patents

Abstract

The present invention relates to an air curtain device. According to one embodiment of the present invention, the air curtain device installed in an entrance of a refrigerated warehouse comprises: a first vertical duct vertically installed on one side of the entrance and having an outlet which discharges blocking air toward the other side of the entrance and is formed in a longitudinal direction of the duct; a second vertical duct vertically installed on the other side of the entrance to face the first vertical duct and having an air intake which is formed on a second surface facing the first surface and sucks the blocking air discharged through the outlet; a horizontal duct horizontally installed on an upper side of the entrance to connect upper ends of the first vertical duct and the second vertical duct and having a blower unit providing air inside the second vertical duct to the first vertical duct; and an air current guide unit installed on the first surface to be capable of controlling a direction of the blocking air injected through the outlet.

Description

Air curtain apparatus for cold storage warehouse TECHNICAL FIELD

The present invention relates to an air curtain device for a refrigerator warehouse.

Various meats, agricultural products, fish and processed foods are staple foods and humus that supply nutrients essential to life, and their consumption is increasing rapidly as the population increases. In addition, a large freezer that can store agricultural and marine products and processed foods such as meat, agricultural products, fish and processed foods that are produced in the production area and need to be kept fresh and frozen so that they do not deteriorate. Has been used throughout.

The interior of such a large freezer warehouse creates an environment for storing agricultural and fishery products and processed foods, and the exterior of the large freezer is provided with wall panels that form the exterior, and the doors and doors on both sides in the form of insulation plates are located in front of the entrance of the freezer An operating device and an air curtain device that can be moved to and opened and closed the freezing warehouse are provided.

The air curtain device meets the Hazard Analysis Critical Control Point (HACCP) for the purpose of maintaining cool air in large freezers and blocking the inflow of outside air, as well as highlighting recent food hygiene. In order to comply, it is installed for the purpose of blocking invasion of foreign substances such as pests and dust.

An object of the present invention is to provide an air curtain device for a refrigeration warehouse capable of effectively blocking airflow across an open area of an entrance of a refrigeration warehouse.

An object of the present invention is to provide an air curtain device for a freezing warehouse that can effectively block external warm air from flowing into a freezing warehouse and internal cold air from flowing out of a freezing warehouse.

An object of the present invention is to provide an air curtain device for a freezing warehouse capable of adjusting the discharge direction of blocked air.

The problem to be solved by the present invention is not limited thereto, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, a first vertical duct having a discharge port installed vertically on one side of the doorway and discharging blocking air toward the other side of the doorway is formed on a first surface along a longitudinal direction; A second vertical duct that is vertically installed on the other side of the entrance to face the first vertical duct, and has an intake port on which the blocking air discharged through the discharge port is inhaled on a second surface facing the first surface; A horizontal duct installed horizontally above the entrance to connect the upper end of the first vertical duct and the upper end of the second vertical duct, and equipped with a blowing unit that provides air in the second vertical duct to the first vertical duct. ; And an airflow guide part installed on the first surface and capable of adjusting the direction of blocking air sprayed through the discharge port.

In addition, the airflow guide portion is a first guide blade plate installed on the first surface to be located close to the entrance along the longitudinal direction of the discharge port; And a second guide wing plate installed on the first surface so as to be symmetrically positioned with the first guide wing plate with the discharge port interposed therebetween.

In addition, the airflow guide unit adjusts the distance between the first guide wing plate and the second guide wing plate, or adjusts the direction of the first guide wing plate and the second guide wing plate, and then fixes the first guide wing plate. It may further include a blade plate fixing member installed at a predetermined interval on the plate and the second guide blade plate.

In addition, the first guide wing plate includes a first through slot formed at regular intervals along a length direction; And a first fixing bracket having a fastener installed adjacent to the first through slot; The second guide wing plate includes a second through slot formed at the same position as the first through slot; And a second fixing bracket having a fastener installed adjacent to the second through slot; The wing plate fixing member includes an adjustment bar having through holes formed in a row in one direction and inserted into the first through slot and the second through slot; A first fixing bolt for fixing any one of the through holes of the adjustment bar passing through the first through slot to the fastener of the first fixing bracket; And a second fixing bolt fixing the other one of the through holes of the adjustment bar passing through the second through slot to the fastener of the second fixing bracket.

In addition, the control bar is attached to the first fixing bracket and the second fixing bracket by the first fixing bolt and the second fixing bolt after the distance or direction between the first guide wing plate and the guide wing plate is adjusted. Can be fixed.

In addition, the first guide wing plate and the second guide wing plate are deflected so that the circuit breaker flows toward the outside of the door in order to block external air to be introduced into the door from the middle height of the door to the upper end, and the As it goes from the middle height of the entrance to the lower end, it may be deflected so that the circuit breaker flows toward the inside of the entrance in order to block the cold air flowing out from the entrance to the outside.

In addition, the first vertical duct includes an internal passage provided to allow air introduced through the horizontal duct to pass vertically downward; And an airflow conversion member for converting vertically descending air passing through the inner passage into blocking air horizontally discharged through the discharge port.

In addition, the airflow switching member may include baffle plates installed in the inner passage at regular intervals and horizontally installed in the inner passage at predetermined intervals so as to collide with the vertically descending air.

In addition, the baffle plate may include a first portion protruding to the outside through the discharge port and a second portion positioned in the inner passage, and the second portion may have a relatively larger area than the first portion.

In addition, the second portion may be formed by bending one end in the upward direction.

In addition, the horizontal duct may further include a moisture removal unit for removing moisture in air supplied from the second vertical duct to the first vertical duct.

According to an embodiment of the present invention, it is possible to effectively block airflow across the open area of the entrance of a freezing warehouse.

According to an embodiment of the present invention, it is possible to effectively block external warm air from flowing into the freezing warehouse and internal cold air from flowing out of the freezing warehouse.

According to an embodiment of the present invention, it is easy to change the discharge direction of the blocking air according to the site conditions.

The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings.

1 is a perspective view showing an air curtain device for a freezing warehouse according to an embodiment of the present invention.
2 is a front view of the air curtain device for a refrigeration warehouse shown in FIG. 1.
3 is a view showing air circulated in the air curtain device for a refrigeration warehouse shown in FIG. 2.
FIG. 4 is a diagram cut along line AA shown in FIG. 2.
5 is an enlarged cross-sectional view of a main part of the first vertical duct.
6 is a view showing an airflow conversion member installed in the first vertical duct.
7 and 8 are views for explaining an airflow guide installed in a first vertical duct.
9 is a view showing an example of concentrating blocking air discharged from a first vertical duct.
10 is a view showing an example of diffusing blocking air discharged from a first vertical duct.
11 is a view for explaining the airflow guide member in the first vertical duct.
FIG. 12 is a diagram cut along the line of FIGS. 12-12 shown in FIG. 11.
FIG. 13 is a diagram cut along the line of FIGS. 13 to 13 shown in FIG. 11.

In the present invention, various transformations may be applied and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and will be described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components regardless of the reference numerals are given the same reference numerals, and duplicates thereof. Description will be omitted.

1 is a perspective view showing an air curtain device for a freezing warehouse according to an embodiment of the present invention, FIG. 2 is a front view of the air curtain device for a freezing warehouse shown in FIG. 1, and FIG. 3 is a freezing warehouse shown in FIG. It is a view showing the air circulated in the air curtain device for, Figure 4 is a view taken along the line AA shown in FIG.

1 to 4, the air curtain device 10 according to an embodiment of the present invention may be installed in front of the entrance 22 of the freezing warehouse 20. The air curtain device 10 may include a first vertical duct 100, a second vertical duct 200, a horizontal duct 300, and an airflow guide 400.

The first vertical duct 100, the second vertical duct 200 and the horizontal duct 300 may be provided in the form of a hollow type duct formed of sheet metal or other suitable material. The first vertical duct 100 and the second vertical duct 200 are interconnected by a horizontal duct 300. When the entrance is viewed from the front, the first vertical duct is located on the right side of the entrance, the second vertical duct is on the left side of the entrance, and the horizontal duct is located above the entrance.

The horizontal duct 300 includes a blowing unit 310 and a moisture removing member 320. The blowing unit 310 includes a blowing fan, and the moisture removing member 320 may include a plurality of heaters. Air passing through the horizontal duct passes through the moisture removal member 320 to remove moisture, and then flows through the blowing unit into the inner passage of the first vertical duct.

The air curtain device 10 of the present invention is a discharge port formed in the first vertical duct 100 by inhaling air through the intake port 210 formed in the second vertical duct 200 while the blowing fan installed in the horizontal duct 300 rotates. Discharge the blocking air (2) with (110). That is, the blocked air discharged from the discharge port 110 is re-inspired through the intake port 210 and provided to the blowing unit 310.

Accordingly, the air curtain device 10 of the present invention prevents the cold air in the freezing warehouse 20 from flowing out through the door 22 by forming an air curtain in the transverse direction in front of the door 22 without collision of air. It is possible to prevent and block the inflow of warm external air into the freezing warehouse 20 through the entrance 22.

The second vertical duct 200 is vertically installed on the left side of the entrance 22 so as to face the first vertical duct 100. The second vertical duct 200 has an intake port 210. The intake port 210 is formed on the second surface 202 facing the first surface 102 of the first vertical duct 100. The blocked air discharged through the discharge port 110 is inhaled through the intake port 210. The upper end of the second vertical duct 200 is connected to the horizontal duct 300.

The first vertical duct 100 is vertically installed to face the second vertical duct 200 on the right side of the entrance 22. The first vertical duct 100 has a discharge port 110. The discharge port 110 is formed along a longitudinal direction perpendicular to the first surface 102 facing the second surface 202. The discharge port 110 discharges the blocking air toward the second surface 202 (the other side of the entrance) of the second vertical duct 200.

The airflow guide 400 may be provided on the first surface 102 so as to adjust the direction of the blocking air sprayed through the discharge port 110.

5 and 6 are views showing a first vertical duct and an airflow guide, FIG. 7 is an exploded perspective view for explaining the airflow guide, and FIG. 8 is an enlarged cross-sectional view of a main part.

5 to 8, the airflow guide 400 is a first guide blade plate 410 installed on the first surface 102 to be located close to the entrance 22 along the longitudinal direction of the discharge port 110 And a second guide wing plate 420 installed on the first surface so as to be symmetrically positioned with the first guide wing plate 410 with the discharge port 110 interposed therebetween. One end of the first and second guide blade plates 410 and 420 is fixed to the first surface 102 by a bolting (or welding) fastening method, and these blade plates have a predetermined thickness capable of being bent.

The airflow guide 400 may further include a wing plate fixing member 430. The wing plate fixing member 430 may adjust the distance between the first guide wing plate 410 and the second guide wing plate 420 or the first guide wing plate 410 and the second guide wing plate 420 It may be installed at regular intervals on the first guide wing plate 410 and the second guide wing plate 420 in order to adjust the direction of and then fix it.

The first guide wing plate 410 includes a first through slot 412 formed at regular intervals along the length direction and a first fixing bracket 414 having a fastener installed adjacent to the first through slot 412. Includes.

The second guide wing plate 420 is a second fixing bracket having a second through slot 422 formed at the same position as the first through slot 412 and a fastener installed adjacent to the second through slot 422 Including (424).

The wing plate fixing member 430 includes an adjustment bar 440 and first and second fixing bolts 450 and 460. The adjustment bar 440 may be provided such that through holes 442 are formed in a row in one direction and inserted into the first through slot 412 and the second through slot 422. The first through slot 412 and the second through slot 422 may be formed to have a width wider than that of the adjustment bar 440.

The first fixing bolt 450 is provided to fix any one of the through holes of the adjustment bar 440 passing through the first through slot 412 to the fastener of the first fixing bracket 414.

The second fixing bolt 460 is provided to fix the other one of the through holes of the adjustment bar 440 passing through the second through slot 422 to the fastener of the second fixing bracket 424.

The adjustment bar 440 is first fixed by the first fixing bolt 450 and the second fixing bolt 460 after the distance or direction of the first guide wing plate 410 and the second guide wing plate 420 is adjusted. It may be fixed to the fixing bracket 414 and the second fixing bracket 424. For example, in a state in which the adjustment bar 440 is pre-fastened to the first and second fixing brackets using the first and second fixing bolts 450 and 460 (not completely tight, but only loosely connected), the operator After adjusting the direction of the first and second guide blade plates 410 and 420 to a desired direction, and completely fastening the first and second fixing bolts 450 and 460, the first and second guide blade plates 410 and 420 may be fixed in a bent state. have.

On the other hand, referring to FIGS. 5 and 6 and 8, the first vertical duct 100 is an airflow conversion installed in the internal passage 104 provided to allow the air introduced through the horizontal duct 300 to pass vertically downward. A member 150 may be further included. The air flow conversion member 150 is provided to convert the vertically descending air passing through the inner passage 104 into blocking air that is horizontally discharged through the discharge port 110. The airflow conversion member 150 may include baffle plates 160 installed at regular intervals in the inner passage 104 and horizontally installed at regular intervals in the inner passage 104 so as to collide with the vertically descending air 1. have. The baffle plate 160 may include a first portion 162 protruding to the outside through the discharge port 110 and a second portion 164 positioned in the inner passage 104. The second portion 164 may have a relatively larger area than the first portion 162. The second portion 164 may be formed with one end bent upward.

9 and 10 are views showing a state in which the distance between the first guide blade plate and the second guide blade plate is adjusted.

As shown in FIG. 9, in a state where the gap between the first guide blade plate 410 and the second guide blade plate 420 is narrowed, the adjustment and control bar 440 is moved to the first fixing bracket 414 and the second fixing bracket ( When bolted to 424), blocking air can be discharged in a concentrated form.

On the contrary, as shown in FIG. 10, in a state where the distance between the first guide wing plate 410 and the second guide wing plate 420 is widened, the control bar 440 is moved to the first fixing bracket 414 and the second When bolted to the fixing bracket 424, blocking air may be discharged in a diffuse form.

This adjustment of the distance between the first guide wing plate 410 and the second guide wing plate 420 has a special effect in that it can be easily adjusted according to the site conditions after installing the air curtain device 10 in the freezing warehouse. Have.

FIG. 11 is a view for explaining the airflow guide member in the first vertical duct, FIG. 12 is a view taken along the line of FIGS. 12-12 shown in FIG. 11, and FIG. 13 is a line of FIGS. 13-13 shown in FIG. It is a diagram cut along the line. In FIG. 11, the airflow guide is omitted for convenience of drawing.

As shown in FIGS. 11 to 13, the first guide wing plate 410 and the second guide wing plate 420 block external air that is about to flow into the doorway 22 from the intermediate height of the doorway 22 to the upper end. It may be deflected so that the blocking air flows toward the outside of the entrance 22 for this purpose. At this time, the adjustment bar 440 is fixed in an inclined state so that the left side faces inward.

In addition, the first guide wing plate 410 and the second guide wing plate 420 are deflected so that the blocking air flows toward the inside of the door to block cold air flowing out from the doorway toward the bottom from the middle height of the doorway. I can. At this time, the adjustment bar 440 is fixed in an inclined state so that the right side faces inward. The deflection of the blocking air may be provided by the wing plate fixing member 430.

The detailed description above is illustrative of the present invention. In addition, the above description shows and describes preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications may be made within the scope of the concept of the invention disclosed in the present specification, the scope equivalent to the disclosed contents, and/or the skill or knowledge of the art. The above-described embodiments are to describe the best state for implementing the technical idea of the present invention, and various changes required in the specific application fields and uses of the present invention are also possible. Therefore, the detailed description of the invention is not intended to limit the invention to the disclosed embodiment. In addition, the appended claims should be construed as including other embodiments.

10: air curtain device 100: first vertical duct
200: second vertical duct 300: horizontal duct
400: air flow guide

Claims (11)

In the air curtain device installed at the entrance of the freezer warehouse:
A first vertical duct installed perpendicularly to one side of the entrance and having a discharge opening formed along a length direction on a first surface to discharge blocking air toward the other side of the entrance;
A second vertical duct that is vertically installed on the other side of the entrance to face the first vertical duct, and has an intake port on which the blocking air discharged through the discharge port is inhaled on a second surface facing the first surface;
A horizontal duct installed horizontally above the entrance to connect the upper end of the first vertical duct and the upper end of the second vertical duct, and equipped with a blowing unit that provides air in the second vertical duct to the first vertical duct. ; And
An air curtain device for a refrigeration warehouse including an airflow guide installed on the first surface and capable of adjusting the direction of blocking air sprayed through the discharge port. The method of claim 1,
The airflow guide unit
A first guide blade plate installed on the first surface to be positioned close to the entrance along the length direction of the discharge port; And
An air curtain device for a refrigeration warehouse comprising a second guide wing plate installed on the first surface so as to be symmetrically positioned with the first guide wing plate with the discharge port therebetween. The method of claim 2,
The airflow guide unit
The first guide wing plate and the second guide to adjust the distance between the first guide wing plate and the second guide wing plate, or adjust and fix the direction of the first guide wing plate and the second guide wing plate. An air curtain device for a freezing warehouse further comprising a wing plate fixing member installed at a predetermined interval on the wing plate. The method of claim 3,
The first guide wing plate includes a first through slot formed at regular intervals along a length direction; And a first fixing bracket having a fastener installed adjacent to the first through slot;
The second guide wing plate includes a second through slot formed at the same position as the first through slot; And a second fixing bracket having a fastener installed adjacent to the second through slot;
The wing plate fixing member
An adjustment bar having through holes formed in a row in one direction and inserted into the first through slot and the second through slot;
A first fixing bolt fixing any one of the through holes of the adjustment bar passing through the first through slot to the fastener of the first fixing bracket; And
An air curtain device for a refrigeration warehouse comprising a second fixing bolt for fixing the other one of the through holes of the adjustment bar passing through the second through slot to the fastener of the second fixing bracket. The method of claim 4,
The control bar is
Air for a freezing warehouse fixed to the first fixing bracket and the second fixing bracket by the first fixing bolt and the second fixing bolt after the distance or direction between the first guide wing plate and the guide wing plate is adjusted Curtain device. The method of claim 2,
The first guide wing plate and the second guide wing plate are
As it goes from the middle height of the entrance to the top, it is deflected so that the circuit breaker flows toward the outside of the entrance in order to block external air to be introduced into the entrance,
An air curtain device for a refrigeration warehouse in which a circuit breaker flows toward the inside of the entrance to block cold air flowing out from the entrance from the middle height of the entrance to the lower end. The method of claim 2,
The first vertical duct is
An internal passage provided to allow air introduced through the horizontal duct to pass vertically downward; And
An air curtain device for a refrigeration warehouse comprising an airflow switching member for converting vertically descending air passing through the inner passage into blocking air horizontally discharged through the discharge port. The method of claim 7,
The airflow switching member is
An air curtain device for a refrigeration warehouse including baffle plates installed in the inner passage at regular intervals and horizontally installed in the inner passage at predetermined intervals so as to collide with the vertically descending air. The method of claim 8,
The baffle plate
An air curtain device for a freezing warehouse comprising a first portion protruding to the outside through the discharge port and a second portion positioned in the inner passage, wherein the second portion has a relatively larger area than the first portion. The method of claim 9,
The second part is an air curtain device for a refrigeration warehouse formed by bending one end in an upward direction. The method of claim 1,
The horizontal duct is
An air curtain device for a refrigeration warehouse further comprising a moisture removal unit for removing moisture in air supplied from the second vertical duct to the first vertical duct.

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