JP2009068762A - Storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in a conventional low-temperature storage that it is actually difficult to allow the cooling air to uniformly flow in every corner of a storage space, thus citrus fruits stored at a place near a cooler is supercooled and often damaged into low-temperature injury, and the citrus fruits stored at a place far from the cooler is not cooled, which causes rind puffing. <P>SOLUTION: This storage comprises a storage main body 3 having the storage space 27 inside, a cylindrical airflow adjusting passage 31 disposed at an upper portion of the storage main body and opened at its both ends, and a circulation fan disposed at one end side of the airflow adjusting passage, sucking the air from the storage space of the storage main body, and distributing the air to the airflow adjusting passage, and a cooler 37, and the air supplied as laminar flow from the other end side of the airflow adjusting passage to the storage space is sucked toward a negative pressure area formed at a suction side of the air of the circulation fan and the cooler 37, thus an air circulation passage (arrow of solid line) for circulating the air between the airflow adjusting passage and the storage space, is formed in the storage main body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a storage, and more particularly to a storage suitable for storing citrus fruits.

For example, if Wenzhou mandarin oranges can be stored with quality maintained until early spring, they will become a valuable item and can be sold at a high price in the market.
However, when Satsuma mandarin is stored naturally, floating skin and rot easily occur during the season when the temperature and humidity rise. This is due to the fact that the vicinity of the surface of the skin becomes highly humid due to moisture transpiration from the skin.
Therefore, when trying to store Wenzhou oranges until early spring, it is necessary to maintain temperature and humidity appropriately during the storage.

  By the way, when adjusting indoor temperature and humidity, as described in Patent Document 1, normally, a cooler is installed on the side wall, and a circulation fan is installed on the ceiling to some extent away from the cooler. The cooling air is blown out into the room by the cooling fan provided from the vessel, and the cooling air is circulated in the room by the circulation fan.

JP 7-248142 A

However, since the cooling air blown out from the cooler is turbulent and interferes with each other, there is a limit to the reach distance of the cooling air flow generated by the circulation fan. Moreover, the circulation fan is not arranged in consideration of the direction of the airflow described above, and simply agitates the air.
Therefore, in the above configuration, it is practically difficult to uniformly blow cooling air to every corner of the storage space of the storage body, and the citrus fruits stored near the cooler are easily overcooled and easily cause low-temperature damage, Citrus stored in a place distant from the cooler is not cooled and easily causes the above-mentioned floating skin.
Therefore, an object of the present invention is to solve the above problems and provide a storage suitable for storing citrus fruits such as Wenzhou oranges.

  The present invention has been made to solve the above problems, and the invention of claim 1 is a storage body having a storage space inside, and a cylindrical airflow adjustment provided at an upper portion of the storage body and having both ends opened. And a circulation fan that is disposed on one end side of the airflow adjustment path and sucks air from the storage space of the storage body and sends out air to the airflow adjustment path, and from the other end side of the airflow adjustment path to the storage space The air blown out as a laminar flow is sucked toward the negative pressure region formed on the air suction side of the circulation fan, so that the air between the air flow adjusting path and the storage space is introduced into the storage body. An air circulation path through which the gas circulates is formed.

  According to a second aspect of the present invention, in the storage according to the first aspect, the cooler provided with the blower fan on one end side of the airflow adjustment path sucks air from the storage space and blows out the cooling air into the airflow adjustment path. It is a storage characterized by being.

  According to a third aspect of the present invention, in the storage according to the first or second aspect, the air flow adjusting path is constituted by a cylindrical body using a double ceiling structure comprising a ceiling plate of the main body of the storage and a partition plate provided on the upper part. It is a storage characterized by being.

  The invention of claim 4 is the storage according to any one of claims 1 to 3, wherein an outside air introduction means for introducing outside air into the storage body and an inside air discharge means for discharging the inside air are provided. It is a storage characterized by.

  Invention of Claim 5 is a storehouse used in the storehouse in any one of Claim 1 to 4 for storing citrus fruits.

According to the storage of the present invention, it is possible to uniformly vent every corner of the storage space, so that the storage space can be uniformly maintained at a desired temperature and humidity. Further, since air flows through the storage space at a slight wind speed, moisture existing so as to cover the surface of the citrus peel is also appropriately removed.
Therefore, it is possible to prevent the occurrence of low-temperature damage, floating skin and rot in citrus fruits during storage. Therefore, the storage of the present invention is suitable for storing citrus fruits.

The storage 1 which concerns on embodiment of this invention is demonstrated according to drawing.
This storage 1 is designed as a storage for Wenzhou mandarin orange M as an example of citrus fruits.
First, the configuration of the storage 1 will be described.
The storage body 3 is a warehouse constructed on a predetermined land.
The storage body 3 has an outer shape constituted by a rectangular floor board 5, four side walls 7, 11, 13, 15 that rise from each side of the floor board 5 and a roof. Reference numeral 17 denotes a roof lower surface. A heat insulating / moisture proof cover (not shown) having heat insulating properties and moisture proof properties is attached to the inside of the storage body 3 and is in a heat insulating / moisture proof specification.
An opening / closing door 9 is provided on the side wall 7, and the opening / closing door 9 is opened, and the unloading orange M is taken in and out of the storage body 3.

Reference numeral 19 denotes a ceiling board, and the ceiling board 19 is stretched horizontally on the floor board 5. However, the side wall 7 is inclined downward toward the outside.
There is a strip-shaped missing portion extending toward the side wall 13 at the intermediate position in the width direction of the side wall 7 side end of the ceiling plate 19, and the missing portion is blocked by the communication plate 21. The storage body 3 is vertically partitioned by the ceiling plate 19 and the communication plate 21, and the upper portion is an exhaust space 25 and the lower portion is a storage space 27.
Reference numeral 23 denotes an exhaust hole, and a plurality of the exhaust holes 23 are formed in the communication plate 21 at regular intervals. The upper exhaust space 25 and the lower storage space communicate with each other through the exhaust hole 23.

Reference numeral 29 denotes a rectangular partition plate. The partition plate 29 is provided below the ceiling plate 19 at a predetermined interval and is stretched horizontally. The length of the partition plate 29 is smaller than that of the ceiling plate 19, and there is a space between the side wall 7 side end of the partition plate 29 and the side wall 7 and between the side wall 13 side end and the side wall 13. is open. On the other hand, the side wall 11 and the side wall 15 of the partition plate 29 are connected and a gap is not opened. Thus, the storage 1 has a so-called double ceiling structure.
In this embodiment, the air flow adjusting path 31 is formed by a gap space between the ceiling plate 19 having a double ceiling and the partition plate 29, with one end side serving as an inlet 33 and the other end serving as an outlet 35. Yes.

Reference numeral 37 denotes a cooler, and the cooler 37 is connected to an outdoor unit (not shown) and a drain pipe (not shown) disposed outside the storage body 3. The cooler 37 is provided at an intermediate position in the width direction along the inlet 33 of the airflow adjustment path 31. The cooler 37 has a built-in cold air fan (not shown) as a blower fan, with the air inlet 39 facing downward and the air outlet 41 facing the air flow adjusting path 31.
Reference numerals 43 and 43 denote a pair of circulation fans as blower fans, and the pair of circulation fans 43 and 43 are disposed opposite to each other along the inflow port 33 of the airflow adjustment path 31 with the cooler 37 interposed therebetween. Similarly to the cooling fan of the cooler 37, each circulation fan 43 also has an air suction port facing downward and a blower port facing the air flow adjustment path 31.

Reference numeral 45 denotes an outside air introduction tube having both ends opened. The outside air introduction pipe 45 passes through the vicinity of the center of the side wall 13 and extends to the outside of the storage body 3. The outside air introduction pipe 45 is covered with a weather cover 48 on the outer side of the storage body 3, and a net (not shown) is attached to the front end opening of the outside air introduction pipe 45 to prevent foreign matter from entering. is doing.
The outside air introduction pipe 45 is bent and extends vertically downward in the storage body 3, and is branched into two in an inverted T-order near the floor plate 5, and each branch pipe is parallel to the side wall 13 and separated from each other. After slightly extending in the direction, it is bent, and the introduction port 47 at the tip thereof faces the side wall 7 side.
The outside air introduction pipe 45 is provided with an air supply fan (not shown).
The outside air introduction means is constituted by the above-described outside air introduction pipe 45 and the like.

Reference numeral 49 denotes an internal air discharge pipe having both ends opened. The internal air discharge pipe 49 passes through the side wall 7 between the ceiling plate 19 and the partition plate 29 and enters the exhaust space 25, and the discharge port 51 at the tip thereof faces the side wall 13.
The internal air discharge pipe 49 is provided with an exhaust damper (not shown) for adjusting the exhaust amount and an exhaust fan (not shown).
The internal air discharge means is constituted by the internal air discharge pipe 49 and the like described above.

  Reference numeral 53 denotes an operation control panel, and the operation control panel 53 is installed on the outer surface of the side wall 7. By operating the operation control panel 53, the operation / stop of the cooler 37, the cool air fan of the cooler 37, the circulation fan 43, the supply fan, and the exhaust fan are operated / stopped, the air volume adjustment, the exhaust damper The opening degree is controlled. The operation control panel 53 is provided with a display device (not shown) for displaying the inside, outside air, temperature and humidity. The display device is monitored, and the operation control panel 53 is operated based on the monitoring result. Then, the operation / stop of the cooler 37, the cool air fan of the cooler 37, the circulation fan 43, the supply fan, the operation / stop of each blower fan of the exhaust fan, the adjustment of the air volume, and the opening degree of the exhaust damper are appropriately controlled. To do.

Next, the storage state of Wenzhou oranges M in the storage 1 will be described with reference to FIGS.
Reference numeral 55 denotes a rectangular wooden box for storing a plurality of Wenzhou oranges M, and this wooden box 55 opens upward. A small gap 57 is provided between the four plates constituting the floor plate of the wooden box 55. Spacers 59 are respectively attached and fixed to the four corners at the upper end of the wooden box 55.
At the time of storage, as shown in FIG. 4, wooden boxes 55 are stacked on both sides of the door 9 in the storage body 3. When the wooden box 55 is stacked up and down, the gap 61 is opened between the upper and lower wooden boxes 55 by the thickness of the spacer 59, so that the wooden box 55 and the outer space can be ventilated through the gap 61. It has become.
Further, the wooden boxes 55 can be ventilated vertically through the gap 57 described above.

Next, the temperature / humidity adjusting action of the storage 1 will be described with reference to FIG.
When the cooler 37 is actuated, the cooling fan is also actuated to suck air from the suction port 39, and after cooling by the action of the cooler 37, the air is blown out as cooling air from the outlet 41. Therefore, a negative pressure region is formed in the storage space 27 below the suction port 39, and a positive pressure region is formed on the inflow port 33 side of the airflow adjustment path 31 in front of the blowout port 41.
The low-humidity cooling air immediately after being blown out from the cooler 37 is turbulent as shown by the solid arrow, but by flowing through the airflow adjustment path 31, a rectifying effect is obtained, and the airflow in the airflow adjustment path 31 is blown. When it blows out from the outlet 35, it becomes a laminar flow as shown by the solid arrow. After the laminar cooling air is blown out from the blowout port 35, the traveling direction is regulated downward by the side wall 7, and it goes downward as indicated by an arrow, and part of it reaches near the floor plate 5.

Since the negative pressure region is formed in a part of the storage space 27 by the operation of the cooling fan as described above, the cooling air is sucked toward the negative pressure region in the storage space 27 and the storage space 27 is indicated by a solid line. Cross as shown by the arrow. In the middle, it passes through the gaps 57 and 61 of the wooden box 55.
Therefore, an air circulation path as shown in the figure is formed between the airflow adjustment path 31 and the storage space 27 below the airflow adjustment path 31.

Since the low-temperature cooling air reaches every corner of the storage space 27 by forming the air circulation path, the storage space 27 is made uniform at a desired temperature and humidity.
Further, since the cooling air blown out from the cooler 37 reaches every corner of the storage space 27, high-temperature and high-humidity air does not stay locally, so it is not necessary to lower the cooling temperature more than necessary. In addition, the cooling air is blown out to the storage space 27 through the air flow adjusting path 31, and the air volume increases due to the attraction effect, and the cooling air and the air in the air flow adjusting path 31 are mixed to increase the temperature of the cooling air to some extent. To do. Therefore, the difference between the temperature of the storage space 27 and the temperature of the cooling air blown out from the airflow adjustment path 31 can be prevented from becoming extremely large, and a low temperature failure can be prevented.
Furthermore, since the cooling air flows in the storage space 27 as an air flow created by a pressure difference, not as an air flow created by the action of the cooling fan, the wind speed is very slow, usually 2.0 to 3.0 m. / Min. Therefore, the moisture existing so as to cover the surface of the peel of Wenzhou mandarin orange M is also removed moderately. The removed moisture is condensed by the cooler 37 and then discharged to the outside through the drain pipe. In addition, since the wind speed of the cooling air is as described above, it is possible to prevent excessive drying of Wenzhou mandarin orange M, and to provide a humidity (85% to 90%) suitable for preservation of Wenzhou mandarin orange M. Can keep.

The circulation fan 43 also functions in the same manner as the cooling fan.
After the storage space 27 is set to a desired temperature / humidity by the cooler 37, the cooler 37 is stopped, and instead the circulation fan 43 is operated to circulate the air so that the temperature / humidity of the storage space 27 is maintained. The period can be kept constant. Therefore, by operating the cooler 37 and the circulation fan 43 alternately, the temperature and humidity of the storage space 27 can be kept constant.

  By operating while adjusting the intake fan of the outside air introduction means and the exhaust fan and exhaust damper of the inside air discharge means, outside air is introduced from the outside air introduction pipe 45 as shown by the dotted arrows in FIG. Since air is discharged from the internal air discharge pipe 49 through the exhaust space 25, it can be ventilated appropriately. This ventilation can also adjust the humidity.

This storage 1 is less likely to cause low-temperature damage, floating skin and rot, and is suitable as a storage for Wenzhou oranges.
Further, in the storage space 27, air is circulated not by the air flow created by the cooling fan or the circulation fan of the cooler 37 but by the air flow created by the pressure difference. Further, the cooling air has an increased air volume due to an attraction effect when passing through the air flow adjusting path 31. Accordingly, a large amount of air in the storage space 27 can be circulated with a small amount of electric power, so that power consumption can be kept low, which is economical.
In the previous test, when the circulation fan 43 was activated, the induced air volume was added to the discharge air volume from the circulation fan 43, and the air volume was 4 to 4.5 times that of the circulation fan 43 alone. Has been confirmed.
When the outside air is low temperature and low humidity, the outside air is introduced into the storage space 27 as low humidity cooling air and is circulated by the circulation fan 43. In this case, it is not necessary to operate the cooler 37, which is more economical.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
For example, in the above-described embodiment, the airflow adjustment path 31 uses a double ceiling structure and is integrated with the storage body 3 and has an advantage that it can be easily manufactured. You may make it the structure which comprises an adjustment path and hangs from a ceiling and fixes. With such a configuration, the airflow adjustment path can be replaced. Accordingly, since the storage temperature varies depending on the type of the stored item, the air volume of the cooler 37, that is, the strength of the airflow also changes accordingly. However, by installing an airflow adjustment passage having an appropriate path length, a suitable rectifying effect is always obtained. be able to.
It can also be applied to fruits such as apples other than citrus fruits.

The storage of the present invention is suitable for long-term storage because it is uniformly maintained at low humidity and low temperature. In addition, since the power consumption can be kept low, the storage cost can be reduced and it is economical.
In particular, it is suitable for storage of citrus fruits such as Wenzhou mandarin oranges that are prone to floating skin.

It is a perspective view of the storehouse concerning an embodiment of the invention. It is sectional drawing of the left-right direction of the storage of FIG. It is sectional drawing of the front-back direction of the storage of FIG. It is a figure which shows the storage state of Wenzhou oranges in the storage of FIG. It is an expansion perspective view of the wooden box which put the Wenzhou mandarin orange shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Storage 3 ... Storage body 5 ... Floor board 7, 11, 13, 15 ... Side wall 9 ... Opening / closing door 17 ... Roof bottom surface 19 ... Ceiling board 21 ... Communication board 23 ... Exhaust hole 25 ... ... Exhaust space 27 ... Storage space 29 ... Partition plate 31 ... Airflow adjustment path 33 ... Inlet 35 ... Air outlet 37 ... Cooler 39 ... Suction inlet 41 ... Air outlet 43 ... Circulating fan 45 ... Outside air introduction pipe 48 ... Weather cover 47 ... Inlet port 49 ... Air exhaust pipe 51 ... Exhaust port 53 ... Operation control panel 55 ... Wooden box 57 ... Gap 59 ... Spacer 61 ... Crevice M ... Wenzhou oranges

Claims (5)

  A storage body having a storage space inside, a cylindrical airflow adjustment path provided at an upper end of the storage body and open at both ends, and air drawn from the storage space of the storage body disposed at one end of the airflow adjustment path A negative pressure formed on the air suction side of the circulation fan, the air being blown as a laminar flow into the storage space from the other end side of the airflow adjustment path. An air circulation path in which air circulates between the airflow adjustment path and the storage space is formed in the storage body by being sucked toward the area. In the storehouse according to claim 1,
A storage, wherein a cooler provided with a blower fan on one end side of an air flow adjusting path is arranged to suck air from a storage space and blow out cooling air into the air flow adjusting path. In the storage according to claim 1 or 2,
The airflow adjustment path is configured by a cylindrical body using a double ceiling structure including a ceiling plate of a storage body and a partition plate provided at an upper part. In the storehouse according to any one of claims 1 to 3,
A storage comprising an outside air introduction means for introducing outside air into the storage body and an inside air discharge means for discharging the air inside the storage. In the storage in any one of Claim 1 to 4,
A storage that is used to store citrus fruits.

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