JP3807518B2 - Refrigerated warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator warehouse for use in storing icing temperature in which a refrigerator temperature can be made uniform even if the density in the warehouse is increased. SOLUTION: This refrigerator warehouse is constructed such that a unit cooler 1 is installed at an upper part of a left side wall A and an outlet port is faced toward a right side wall B. Induction type axial flow fans 3B, 3D with the right side wall B being set as an outlet side are mounted at the upper part of an outlet pipe 12 of the unit cooler 1 and at the upper part of one area of loaded cargos, an induction type axial flow fan 3C with its lower side being applied as an outlet side is arranged between adjoining induction type axial flow fans 3B and at the upper part of the right side wall B, and an induction type axial flow fan 3A with a left side wall A being applied as an outlet side is mounted at the lower part of the right side wall B, respectively. Flow regulating plates 4 are mounted at corner parts 5, 6 or columns in the warehouse.

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a refrigerated warehouse used for storing food or the like.
[0002]
[Prior art]
Recently, attention has been focused on preserving food and the like in a temperature range from 0 ° C. or less to just before freezing (referred to as “ice temperature range”). That is, the preservation of food in the ice temperature range has a shorter quality retention period than the frozen storage that is completely frozen, but the taste is very high. Moreover, it has been confirmed that not only the quality retention period becomes longer than that of normal refrigerated storage (about 0 to 10 ° C.), but also the umami taste is increased by aging with ice temperature depending on the type of food.
[0003]
Such ice temperature storage has been put to practical use for some bulbs, and the bulbs are kept hibernating for a long time in the ice temperature region and the shipping time is adjusted.
[0004]
[Problems to be solved by the invention]
However, since the ice temperature storage is performed in a narrow temperature range from 0 ° C. to a temperature just before freezing (for example, −4 ° C.), the allowable temperature range is small, and a conventional freezing warehouse or refrigerated warehouse cannot be used as it is.
[0005]
In other words, conventional freezing warehouses and refrigerated warehouses have a cooling unit installed at the center of the ceiling or at multiple locations, and cool air is circulated by the fans, but the temperature inside the warehouse is uneven, so it is close to the ceiling. The bulb at the location is directly struck by cold air and may freeze too much. In addition, the bulb near the floor has troubles such as germination because cold air does not reach the bulb sufficiently. Such troubles are likely to occur when goods are packed closely in the warehouse, but from the viewpoint of economy, it is desirable to increase the density of cargo in the warehouse.
[0006]
It is an object of the present invention to make the internal temperature uniform even in a refrigerator warehouse having a small allowable temperature range even if the density of cargo in the warehouse is increased.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problem, the refrigerated warehouse according to the present invention is provided with a cooling device only on one side wall side of the ceiling portion , and the cold air outlet is directed to the side wall side facing the one side wall and is opposed to the one side wall side. Near the floor position on the side wall side, an attracting type axial fan is provided with the one side wall side as the blowing side, and at each position outside the cooling device of the ceiling portion , the attracting type shaft with the one side wall side as the suction side The present invention is characterized in that an attraction type axial flow fan having a suction fan on the upper side and a suction plate on the upper side is provided, and rectifying plates are provided in corners and columns.
[0008]
In this refrigerated warehouse, the cold air coming out from the outlet of the cooling device installed only on the one side wall side is opposed to the one side wall side and the lower side by an induction type axial flow fan provided at each position of the ceiling part. The air is returned to the one side wall by the induction type axial flow fan provided near the floor position on the opposite side wall side, so that the cold air circulates throughout the warehouse. Moreover, the turbulence of the airflow at the corners and the corners of the columns is reduced by the current plate.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a refrigerated warehouse according to this embodiment. FIG. 2 is a vertical cross-sectional view of the refrigerated warehouse, and the symbol T indicates one area of the cargo.
[0010]
In this refrigerated warehouse, ceiling-suspended unit coolers 1 are installed at two locations in the depth direction (up and down direction in FIG. 1) along one side wall (left side wall in FIG. 1) A side.
Each unit cooler 1 includes three blowing pipes 11 to 13. The central blowout pipe 12 extends straight toward the side wall (the right side wall in FIG. 1) B facing the left side wall A, and the blowout pipe 13 on the center side in the depth direction extends toward the center in the depth direction and then the right side wall B. It is piped to face the side. The blowout pipes 11 at both ends in the depth direction extend obliquely toward the side wall C on the entrance side or the side wall D on the back side.
[0011]
Further, near the floor position of each column 2 provided on the right side wall B, an attracting axial fan 3A is installed with the left side wall A side as a blowing side. The same attraction-type axial fan 3B is divided into six parts near the ceiling, which are the center of each cargo area (indicated by “◯” in FIG. 1) with the left side wall A side as the suction side. (See FIG. 2). The same attraction type axial fan 3C is located at the upper side of the warehouse (in the left-right direction in FIG. 1) near the ceiling and at the three locations on the right side wall B side (indicated by “x” in FIG. 1). Is installed on the suction side (see FIG. 2). The same induction type axial flow fan 3D (shown only in FIG. 2) is also installed on the upper side of the blowout pipe 12 of the unit fan 1 with the left side wall A side as the suction side.
[0012]
These attractive-type axial fans 3A to 3D are not so large in volume, but they attract the surrounding air (for example, it is possible to attract more than 10 times the volume of air), so the necessary air flow in the warehouse is created with a small fan. Can do.
[0013]
Further, the left and right corners A1 and A2 of the left side wall A, the corners from which the pillars 2 of the other side walls B, C and D protrude, and the columns 21 arranged at the four locations in the center of the warehouse The rectifying plate 4 is provided on a plane parallel to the side walls A and B. Further, as shown in FIG. 2, rectifying plates 4 are also provided at the corner 5 of the ceiling E and the corner 6 of the floor F.
[0014]
Therefore, as indicated by the arrows in FIG. 2, the cold air that has flowed out from the outlet of the outlet pipe 12 is directed to the right side wall B while being mixed with the air in the warehouse by the induction type axial fan 3D. Freezing of the placed load T is prevented. Further, the induction type axial flow fan 3 </ b> B allows the cold air to sufficiently reach the right side wall B. Further, the attractive type axial flow fan 3 </ b> C allows the cold air to reach the floor side sufficiently. Further, since the cold air reaching the right side wall B is returned to the left side wall A side by the attracting axial fan 3A, the cold air circulates throughout the warehouse.
[0015]
Also, as shown by arrows in FIGS. 1 and 2, the flow straightening at the corners A1, A2, 5, 6 and the corners of the column 2 is reduced by the rectifying plate 4, so that the circulation of the cold air is smooth. .
[0016]
From the above, this warehouse is particularly suitable as an ice temperature storage warehouse having a small allowable temperature range because the inside temperature can be made uniform even if the density of the cargo in the warehouse is increased.
[0017]
In addition, if each of the attracting axial flow fans 3A to 3D is installed so that the blowing port is variable in a range of ± 90 ° C. in all directions from the state of FIGS. This is preferable because it can be made more uniform.
[0019]
【The invention's effect】
As described above, according to the present invention, the temperature inside the warehouse can be made uniform even if the density of the cargo in the warehouse is increased. Therefore, it is effective as a warehouse for storing ice temperature with a small allowable temperature range. used.
[Brief description of the drawings]
FIG. 1 is a plan view showing a refrigerated warehouse corresponding to an embodiment of the present invention.
FIG. 2 is a schematic longitudinal sectional view of the refrigerated warehouse shown in FIG.
[Explanation of symbols]
1 unit cooler 2 pillars 3A-3D
Attracting axial fan (blower)
4 Rectifying plates 5, 6
Corner 11-13
Outlet piping 21 Pillar A1, A2
Corner A Left side wall (one side wall)
B Right side wall (opposite side wall)
E Ceiling

Claims (1)

A cooling device is provided only on the one side wall of the ceiling , and the cold air outlet is directed to the side wall facing the one side wall, near the floor position on the opposite side wall, and the one side wall side is the outlet side. as the attraction-type axial flow fan provided, at each position which is outside of the cooling device of the ceiling portion, the attraction type axial flow fan the set to one side wall suction side was the attraction-type axial flow fan and the upper suction side A refrigerated warehouse characterized in that it is provided with rectifying plates at corners and pillars.

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