JP3198610U - Harvest storage - Google Patents

Abstract

An object of the present invention is to provide a simple storage suitable for room temperature preservation of a crop made of vegetables and fruits. The storage box 40 has an upper limit that does not exceed a line 51. As a result, a sufficiently large air reservoir 28 is formed under the arch ceiling 27. The storage box 40 is not attached to the wall 24. That is, the storage box 40 is placed such that a predetermined interval W is provided between the wall 24 and the storage box 40. When the fan motor 34 is started, a part of the air in the air reservoir 28 circulates as shown by the arrow (1). Since the interval W is secured, the remaining air in the air reservoir 28 flows down toward the floor 23 along the wall 24 as indicated by the arrow (2). Since air is allowed to flow along the wall 24, the temperature difference within the storage box falls within an allowable range. [Selection] Figure 6

Description

  The present invention relates to a storage suitable for preserving pumpkin at room temperature.

  Harvested vegetables and fruits (hereinafter referred to as “harvested products”) are stored in a warehouse or the like until they are shipped. It has been required to consider keeping freshness as much as possible during storage, and various storages and storages have been proposed (for example, see Patent Document 1 (FIGS. 1, 2, and 3)). ).

  As shown in FIG. 3 of Patent Document 1, in the housing case (2) (the numbers in parentheses indicate the symbols described in Patent Document 1. The same applies hereinafter), the air supply hole (3a) is provided at the center of the upper surface. An exhaust hole (3) is provided at the center of the bottom surface.

The harvested product is stored in such a storage case (2) and stacked on the base (9) installed in the storage warehouse (11) shown in FIG.
When the gas decomposition apparatus (10) is started, as shown in FIG. 1 of Patent Document 1, air flows downward to reach the gas decomposition apparatus (10), and ethylene gas is removed by the gas decomposition apparatus (10). The The purified air is returned to the storage warehouse (11). Since ethylene gas is removed, freshness is maintained.

Although the ethylene gas is removed, as shown in FIG. 3 of Patent Document 1, the air supply holes (3a) and the exhaust holes (3) are provided locally (partially). The air flow shown in FIG. 1 is mainly formed at the center of the housing case (2). The crops at the four corners of the containment case (2) are not exposed to air.
As a result, a variation occurs in temperature inside the housing case (2), and a phenomenon occurs in which the crops at the four corners hurt faster than those at the center.

Patent Document 2 has been proposed as a countermeasure.
As shown in FIG. 1 of Patent Document 2, the intake duct with fan (16, 2), (2) (the numbers in parentheses indicate the symbols described in Patent Document 2. The same applies hereinafter). 16) is set up. Motor-driven fans (19, 19) are respectively provided on the ceilings of the intake ducts (16, 16) with fans, and when these motor-driven fans (19, 19) are started, horizontal air is supplied to each container. A flow is formed and uneven temperature is corrected.

According to the technique of Patent Document 2, although the temperature unevenness is corrected, an air conditioner is required although it is omitted in FIG. That is, Patent Document 2 is premised on an expensive automatic warehouse with a built-in air conditioner, which increases the facility cost of the warehouse. In addition, since the air conditioner operates the compressor, the electricity cost increases. Equipment costs and electricity costs will lead to higher prices for the harvest.
Considering the desire to purchase, a simple storage with reduced equipment costs and electricity costs is required.

JP 2001-21118A Japanese Patent Laid-Open No. 8-12010

  This invention makes it a subject to provide the simple storehouse which can suppress an installation cost and an electricity bill.

The invention according to claim 1 is a harvest storage for storing harvests made of vegetables and fruits at room temperature,
A floor, a wall having a height corresponding to the maximum height when stacking storage boxes standing on the floor and storing the harvested product, a roof having an arched ceiling hung on the upper end of these walls, A plurality of axial fans that are attached to the arch ceiling and flow air from above to below along the arch ceiling.

  The invention according to claim 2 is characterized in that the roof is an arch roof.

  The invention according to claim 3 is characterized in that the wall surface of the wall is provided with an air supply fan at the top and an exhaust fan at the bottom.

  According to a fourth aspect of the present invention, the axial fan includes a control unit that controls the rotation speed, and the control unit performs control to increase the rotation speed in proportion to the temperature in the cabinet.

  The invention according to claim 5 is characterized in that the harvest is a pumpkin.

  The invention according to claim 6 is characterized in that a sign indicating the maximum height when the storage boxes are stacked is attached to the upper part of the wall or the lower part of the arch ceiling.

  The invention according to claim 7 is characterized in that a mark indicating that the storage box is separated from the wall by a certain distance is attached to the floor.

  In the device according to claim 1, the storage is composed of a wall, a roof having an arch ceiling, and a plurality of axial fans provided on the arch ceiling, so that the configuration is simple and the equipment cost can be reduced. it can. Since the axial fan does not consume much electricity, the electricity bill can be compressed.

There is a large air pocket on the arch ceiling. The air in the air pool is caused to flow downward along the wall. Airflow does not directly hit the harvest in the storage box. As a result, temperature unevenness does not occur in the storage box.
Therefore, according to Claim 1, the simple storehouse which can suppress an installation cost and an electricity bill is provided.

  In the device according to claim 2, the roof is also an arch roof. If the roof is a flat roof or a single flow, and the bottom surface is an arched ceiling, the object of the present invention can be achieved. However, a wasteful space is generated on a flat roof or a single stream. In this regard, by making the roof and ceiling both arched, the roof thickness is constant and no wasted space is generated. Equipment costs can also be reduced.

According to the third aspect of the present invention, the wall surface of the wall is provided with an air supply fan at the top and an exhaust fan at the bottom.
Carbon dioxide emitted by the harvest is heavier than air. By providing an exhaust fan at the bottom, it is possible to promote the emission of carbon dioxide.

According to a fourth aspect of the present invention, the axial fan includes a control unit that controls the rotation speed, and the control unit performs control to increase the rotation speed in proportion to the temperature in the box.
When the temperature in the warehouse rises due to heat from the harvest, the amount of circulating air is increased to suppress the temperature rise.

  In the device according to claim 5, the harvest is a pumpkin. It is said that if the pumpkin is stored in the dark, it can be stored for 3 months. According to the present invention, storage for 6 months is possible.

  In the device according to claim 6, a mark indicating the maximum height when the storage boxes are stacked is attached. The sign secures a predetermined volume of air pockets under the ceiling arch.

  In the device according to the seventh aspect, the floor is marked, and the storage box does not get too close to the wall. A descending air flow is maintained between the wall and the storage box.

(A) is a side view of the storehouse which concerns on this invention, (b) is a rear view, (c) is a front view. It is a top view explaining arrangement | positioning of a fan. It is sectional drawing of a storage. FIG. 4 is a view on arrow 4-4 in FIG. 3. It is sectional drawing of a storage box. It is an action figure of an axial fan. It is a figure which shows an example of a height mark and a mark.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

As shown to Fig.1 (a), the storage 10 makes the gable-type building which has the front face 11 and the back face 12 one of the components.
As shown in FIG. 1B, the back face 12 is provided with an air supply fan 13 in the upper part (above the left and right walls) and exhaust fans 14 and 14 in the lower part.
As shown in FIG. 1 (c), the front end face 11 is provided with an air supply fan 13 in the upper part (above the left and right walls) and exhaust fans 14 and 14 in the lower part, and forklifts and trucks go in and out. A large entrance 15 and a small entrance 16 through which a person passes are provided.

As shown in FIG. 2, an air supply fan 13 and exhaust fans 14, 14 are provided on the front face 11, an air supply fan 13 and exhaust fans 14, 14 are provided on the rear face 12, and A plurality of axial fans 17 are provided. Open arrows indicate air flow.
In this example, 24 axial fans 17 are arranged in a staggered manner, but the number and arrangement pattern can be changed as appropriate.

  In Hokkaido, outside air falls below freezing (below 0 ° C) during the severe winter season from December to February of the following year. In preparation for excessively low temperatures, an FF heater 18 is provided. The FF heater 18 burns kerosene. Air necessary for combustion is taken in from the outside using an air supply pipe 19. The combustion exhaust gas is discharged outdoors using the exhaust pipe 21.

  As shown in FIG. 3, the storage 10 includes a floor 23 such as a concrete floor, left and right walls 24 and 25 erected on the floor 23, and hung on the upper ends of these walls 24 and 25, and an arch ceiling 27 on the lower surface. And a plurality of axial fans 17 attached to the arch ceiling 27.

  In this example, the roof 26 is an arch roof. By providing the arch roof 27 with the arch roof 27, the thickness T of the roof 26 can be made substantially constant, and a large volume (volume) air reservoir 28 can be formed under the arch ceiling 27.

  As shown in FIG. 4, the axial fan 17 includes a square frame 32 having a round hole 31, stays 33, 33 that cross the round hole 31 so as to intersect at the center of the round hole 31, and these stays 33. , 33, and a fan motor 34 attached to the motor shaft of the fan motor 34. Air flows from the front of the drawing to the back. Since the air flow is along the motor shaft, it is called an axial fan. The axial flow fan 17 can use what is marketed as an industrial ventilation fan.

The axial fan 17 has a lower discharge pressure but a larger air volume than a centrifugal fan or a diagonal fan. Therefore, a large amount of air can flow with a small number of bases.
As shown in FIG. 4, the axial fan 17 is attached to the arch ceiling 27 so that the square frame 32 is perpendicular to the arch ceiling 27 (substantially includes a right angle), and is reinforced with a wire 36.
As a result, the line 37 passing through the plurality of fan motors 34 is parallel to the arch ceiling 27.

  As shown in FIG. 5, the storage box 40 includes a pallet 42 provided with fork holes 41, 41 into which forks of forklifts are inserted, a plurality of columns 43 standing on the pallet 42, and the columns 43. It consists of a plurality of cross members 44 stretched over. These cross members 44 are arranged with a gap 46 large enough to prevent the pumpkin 45 as a harvested product from falling off.

  The storage box 40 having such a form is called a watermark box, and can be expected to circulate air in the gap 46, and becomes lighter by the gap 46. The storage box 40 may be a cardboard box in addition to a watermark wooden box.

  As shown in FIG. 6, temperature sensors 48, 48 that detect the temperature in the cabinet and convert the temperature into an electrical signal are attached to the walls 24, 25. In addition, motor drivers 49 and 49 for driving the fan motor 34 and a control unit 50 for controlling the motor drivers 49 and 49 are provided. The controller 50 may be any controller or control box with a built-in circuit board, and the form is arbitrary.

The storage boxes 40 are stacked in the storage 10 using a truck, a truck crane, a forklift, or the like. A line 51 connecting the upper ends of the walls 24 and 25 is the maximum height of the storage box 40.
That is, the upper limit of the storage box 40 does not exceed the line 51. As a result, a sufficiently large air reservoir 28 is formed under the arch ceiling 27.

In addition, the storage box 40 should not be too close to the walls 24, 25. That is, the storage box 40 is placed between the walls 24 and 25 and the storage box 40 so that the predetermined intervals W and W are provided.
When the storage boxes 40 are stacked such that the intervals W and W are secured and the upper limit does not exceed the line 51, the fan motor 34 is started. Then, a part of the air in the air reservoir 28 circulates as indicated by arrows (1) and (1).

  Further, since the intervals W and W are secured, the remaining air in the air reservoir 28 flows down toward the floor 23 along the walls 24 and 25 as indicated by arrows (2) and (2). When the air flowing down is warmed by the heat generated by the pumpkin, the buoyancy (draft) wins and returns to the air reservoir 28. Therefore, the air in the air reservoir 28 is gently circulated in the storage 10.

Many conventional techniques apply air directly to the harvest in the storage box, and a temperature difference inevitably occurs between the center of the storage box and the corner of the storage box. There was a problem that it was damaged earlier.
In this respect, in the present invention, since the air is made to flow along the walls 24 and 25, the temperature difference in the storage box falls within an allowable range. Conventionally, the storage limit was 3 months after harvesting, but according to the present invention, storage was possible until 6 months after harvesting.

The crops mature during storage and generate heat.
Empirically, it is known that pumpkins are easily damaged at 10 ° C. or lower, can be stored for a long time at 12 to 15 ° C., and the quality deteriorates at temperatures exceeding 15 ° C.

<High temperature countermeasures>:
When the temperature detected by the temperature sensor 48 exceeds 15 ° C. or is likely to exceed 15 ° C., the control unit 50 increases the rotational speed of the fan motor 34. It is recommended that the rotation speed be implemented by VVVF (voltage change-frequency change) control.

  Basically, since the outside air is low temperature, low temperature air is mixed into the air reservoir 28 by the air supply fan 13 to reduce the temperature. By increasing the rotational speed of the axial fan 17, the temperature in the storage 10 can be lowered and the temperature can be kept at 15 ° C. or lower.

<Cooling measures>:
When the temperature detected by the temperature sensor 48 is less than or less than 12 ° C., the control unit 50 decreases the rotational speed of the fan motor 34. Then, the FF heater 18 is operated. Note that cool air of 0 ° C. or less is mixed into the air reservoir 28 by the air supply fan 13, but since the volume of the air reservoir 28 is sufficiently large, the air does not decrease that much by the outside air. As a result, the temperature of the air reservoir 28 can be kept higher than the outside air temperature.

For that purpose, management of the maximum height of the storage box 40 is important. This is because if the management is neglected and the upper limit of the storage box 40 enters the air reservoir 28, the flow of the arrows (1) and (1) cannot be maintained.
To that end, it is desirable to take measures to prevent the occurrence of human errors. A specific example of the countermeasure will be described next.

  For example, as shown in FIG. 7, marks 52 and 52 are attached to the floor 23 at portions separated by W and W from the walls 24 and 25. These marks 52, 52 can be substituted by wheel stop blocks in a parking lot. Since the pallet (see reference numeral 42 in FIG. 5) is inclined when it is placed on the wheel stop block, it is possible to prevent the occurrence of poor positioning. The marks 52 and 52 may be paints and tiles of conspicuous colors.

Further, the sign 53 indicating the maximum height is suspended from the arch ceiling 27. The sign 53 includes, for example, a bar 54 with a tiger pattern (black and yellow stripe pattern) and suspension wires 55 and 55. Since the bar 54 is parallel to the end face 12, the air flow generated by the axial fan 17 is not obstructed.
The sign 53 may be a tiger rope passed to the upper part of the wall 24 and the upper part of the wall 25 (or the lower part of the arch ceiling). The tiger rope is conspicuous because it has black and yellow stripes.

In the present invention, the roof 26 is an arch roof, but it may be a land roof or a single-flow roof as long as an arch ceiling can be formed in the lower part.
In addition, the rotation speed of the air supply fan 13 and the exhaust fan 14 may be controlled according to the temperature in synchronization with the axial flow fan 17.
Furthermore, although the present invention provides a storage suitable for pumpkins, the harvest to be stored may be crops other than pumpkins.

  The storage of the present invention is suitable for storing pumpkins.

  DESCRIPTION OF SYMBOLS 10 ... Storage, 11, 12 ... Wife surface, 13 ... Supply fan, 14 ... Exhaust fan, 17 ... Axial fan, 23 ... Floor, 24, 25 ... Wall, 26 ... Roof, 27 ... Arch ceiling, 28 ... Air Pool, 40 ... storage box, 45 ... harvest (pumpkin), 50 ... control part, 52 ... landmark, 53 ... sign, W ... fixed distance from the wall.

Claims (7)

A storehouse of crops that stores vegetables and fruits at room temperature,
A floor, a wall having a height corresponding to the maximum height when stacking storage boxes standing on the floor and storing the harvested product, a roof having an arched ceiling hung on the upper end of these walls, A harvest storage, comprising: a plurality of axial fans attached to the arch ceiling for flowing air from top to bottom along the arch ceiling.   2. The harvest storage according to claim 1, wherein the roof is an arch roof.   The harvest storage according to claim 1 or 2, wherein an air supply fan is provided at an upper portion and an exhaust fan is provided at a lower portion of the wall surface of the wall.   The axial flow fan includes a control unit that controls a rotation speed, and the control unit performs control to increase the rotation speed in proportion to the temperature in the warehouse. The storage of the harvest according to item 1.   The storage of the harvest according to any one of claims 1 to 4, wherein the harvest is a pumpkin.   The storage of the harvest according to claim 1, wherein a mark indicating the maximum height when the storage boxes are stacked is attached to an upper part of the wall or a lower part of the arch ceiling.   2. The harvest storage according to claim 1, wherein a mark indicating that the storage box is separated from the wall by a certain distance is attached to the floor.

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