KR101425768B1 - blueberry precooling and predrying device in using cold container - Google Patents

Abstract

The present invention provides a blueberry pre-cooling and dehumidifying device used in a cold storage. The blueberry pre-cooling and dehumidifying device comprises: a body (10) which has a rectangular box shape including a blueberry loading unit (11) formed therein, wherein the left surface and front surface thereof are opened and equipped with an air suctioning hole (12) and an entrance and exit hole (13), respectively and the right surface thereof is equipped with an air suctioning hole and an air discharge hole (14) continued to the blueberry loading unit; a caster (20) installed at the bottom of the body for movement; a moving handle (30) formed at the left of the body so as to pull or push to move the body; a roll screen (40) installed on the top of the entrance and exit hole so as to open and close the entrance and exit holes of the overall surface of the body; a differential pressure fan (50) which is installed in the air discharge hole in a differential pressure structure so as to suction air from the body and to discharge the air to the outside; and a control unit (60) adhered and installed on the body so as to control air movement and air volume in the differential pressure fan. The blueberry loading unit (11) comprises: a vertical bar (111) in which front-rear and left-right elements are spaced from each other and form a pair, respectively so as to horizontally divide the internal space thereof; and a holder (112) which is horizontally connected with a front-rear vertical bar, symmetrically makes a pair with a left-right vertical bar, and is formed on the top and bottom with a certain interval so that the edges of multiple blueberry baskets (100) are hung and separately held. Accordingly, blueberries can be pre-cooled in a cold storage.

Description

BLUEBERRY PRECOOLING AND PREDRYING DEVICE IN USING COLD CONTAINER [0002]

The present invention relates to a blueberry precooling and dehumidifying machine used for drying and removing moisture adhering to pericarp at a stage before packaging of blueberries to prevent deterioration of harvested blueberries and to improve shelf life and to rapidly lower the temperature of fruit berries.

Blueberry is a shrub plant belonging to the genus Eraccaceae ( Vaccinium ), and is known to have a strong functional ability such as antioxidant activity and visual enhancement effect.

In addition, it is possible to cultivate environmentally friendly pesticide resistant to pests, and by the development of cold chain network, production and consumption are further expanded and activated by being supplied in a fresh state from a producing place to a consumer.

On the other hand, the soft pulp of blueberry is weak in long-term preservation, and the harvest is made in the period of high temperature and high humidity from July to August. In particular, the blueberry fruit isolated from the tree has a characteristic that the temperature rises by 7 ° C over a short period of time due to self-breathing, and the breathing rate becomes faster as the temperature increases.

For example, in order to keep the respiratory action of blueberry fruit close to dormancy and keep fresh, it is preferable to refrigerate at a temperature in the range of 1 to 5 ° C. However, it is left to stand at the average temperature of 27 ° C. When the volume is increased by almost 20 times, a disease organism develops rapidly.

Due to the nature of these blueberries, the quality of the harvest is minimized by minimizing direct exposure to sunlight during harvest, keeping the harvested material in the shade, It is necessary to perform post-harvest screening, packing and storage work in a low temperature reservoir.

In addition, it can be stored for 2 ~ 3 weeks through pre-cooling and dehumidification which lowers the temperature uniformly and rapidly at low temperature of 1 ~ 5 ℃ by sufficiently drying the water within 4 hours after harvesting. However, the conventional dehumidifying or precooling device is designed to be applicable to general horticultural crops such as lettuce and garlic, and is not suitable for dehumidification and precooling of blueberries.

For example, in Korean Patent No. 10-0408812, as shown in FIG. 1A, a pre-cooling pretreatment unit 100 having a movable structure and selectively generating cold wind or hot wind and a condensing unit 200 are separated into separate devices The flexible connection pipe unit 300 is connected to the pre-cooling pretension unit 100 and the condensing unit 200 through a flexible connection pipe unit 300 for circulating the refrigerant. The flexible connection pipe unit 300 is a flexible pipe, And a moving type preheating and heating / releasing device having a structure capable of being detachably attached to the presetting unit (100) and the condensing unit (200).

The combined refrigeration apparatus has the advantage of being able to effectively perform pre-cooling or warm-up of various agricultural products by using cold air or hot air, and to carry out transportation function in the workplace. However, for a certain period (about 10 weeks There is a problem in that it is necessary to provide an expensive preheating apparatus which does not meet the harvest characteristics of the blueberry which is continuously and repeatedly made and does not fit the farmland type blueberry cultivation characteristic, The application to Berry was not efficient.

Korean Patent Registration No. 10-0838479 is proposed in order to solve the increase in costs due to the application of the cooling device. As shown in FIG. 1B, the Korean Patent Registration No. 10-0838479 includes a body having wheels for movably forming an outer body; A blowing fan installed in the main body and supplied with power and blowing air to the rear side of the main body; A transport cart detachably mounted on a rear side of the main body and having a wheel movably mounted on a top surface of the main cart, the cart being packed with agricultural products; A cover for shielding both side surfaces of the transportation box except the direction in which wind pressure of the air blowing fan progresses; A controller which receives a detection signal through a humidity sensor provided at one side of the main body and applies a control signal to the blowing fan; And a display unit for displaying the image.

The above-described prospecting device is used to remove moisture from the surface by applying a wind pressure to the agricultural products stacked on a bogie by a blowing fan, which is economically advantageous for achieving the purpose of illustration. However, It is difficult to achieve uniform uniformity and it is difficult to achieve the precool effect necessary for maintaining the quality of blueberries.

In the case of blueberry, uniformity of pre-cooling and pre-cooling is a very important factor for the uniformity of quality, and the laminated structure in which the air flow is not smooth causes a rise in the relative temperature of the inner blueberry and a humidification state, There was a limit in not effectively reflecting the characteristics of such blueberries.

The present invention relates to a device for performing a pre-cooling dehumidification function exclusively for blueberry, and more particularly to an apparatus and method for constructing a pre-cooled dehumidifier economically by utilizing a low-temperature storage furnished to a blueberry cultivation farm without applying a separate cooling device, The present invention has an object to provide a blueberry preheating dehumidifier for low temperature storage which is capable of quickly and uniformly preheating and dehumidifying blueberries to ensure quality uniformity.

The blueberry pre-cooled dehumidifier according to the present invention has a square box shape in which a blueberry loading part is formed therein. The left side and the front side are opened to constitute an air inlet and an entrance, and the right side is an air inlet- A movable handle formed on a left side of the main body so as to be able to slide or push the main body; and a door for opening and closing the front door of the main body, A control unit installed on the main body for controlling the operation of the differential pressure fan and adjusting the air flow rate; And the blueberry mounting part is divided into horizontal and vertical parts by a pair of front and back and left and right elements separated from each other A vertical bar which is installed in a lock, a vertical bar which is vertically and horizontally connected to the vertical bar, and a pair of vertically symmetrically arranged vertical bars which are spaced apart from each other by a plurality of blueberry baskets, Whereby the berry is pre-cooled and dehumidified.

The low temperature storage blueberry desiccant dehumidifier proposed by the present invention is a continuous network structure having an intake port and an exhaust port. The dehumidifier has a dehumidifying coil installed on an air passage connecting the blueberry mounting portion and the air outlet, The exhaust port of the dehumidifying coil is installed in the exhaust air flow path so as to receive negative pressure by the exhaust air flow, and the intake port of the dehumidifying coil is connected to the exhaust port of the dehumidifying coil And a dehumidifying device configured to penetrate the main body and to be exposed to the outside of the main body so as to suck in the cold air of the low temperature storeroom.

The present invention relates to a method for dehydration and dehydration of a blueberry by moving a blueberry basket from the outside and moving it to a low temperature reservoir, or by operating a differential pressure fan while the blueberry basket is loaded in a low temperature reservoir, The pre-cooling can be performed quickly, and the pre-cooled dehumidifier can be economically constructed without applying a separate cooling device.

In addition, since the opening and closing of the door is made by a roll screen, there is no operation restriction according to the door configuration and an efficient working space can be ensured in a narrow low temperature storage space. The loaded blueberry is appropriately dispersed vertically and horizontally, So that uniform and rapid pre-cooling and dehumidification can be performed without a dead zone, and quality uniformity can be ensured.

In the present invention, the cooling air flows in the dehumidifying coil by the flow of ventilation air, so that the dehumidifying coil can be cooled without a separate cooling device, and the cooled dehumidification coil is humidified It is possible to increase the pre-cooling dehumidification efficiency by controlling the humidity inside the low-temperature storage tank in the pre-cooling dehumidification step by contacting with the air to remove moisture, and it is possible to set the defrosting cycle to be long by relaxing the conception by the humidification in the unit cooler of the low- There is an advantage that the operation efficiency can be enhanced.

FIGS. 1A and 1B are structural diagrams of a conventional pre-
FIG. 2 is a view showing a constitution of a blueberry pre-cooling dehumidifier according to the present invention
3 shows a state in which the roll screen is lowered
Fig. 4 is a schematic view of the dehumidifying device
Fig. 5 is a schematic view of the embodiment of the dehumidifying device

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 and FIG. 3 illustrate a basic embodiment of the present invention. FIG. 2 and FIG. 3 show a box-shaped main body 10 having a blueberry mounting portion 11 therein, A roll screen 40 installed to open and close the door on the front face of the main body and a differential pressure fan 50 installed to suck and discharge the air in the low temperature storage space by the blueberry mounting portion 11, And a control unit 60 thereof.

In the present invention, the main body is made of stainless steel as a main material for hygiene and durability, and has a rectangular box shape in which a blueberry mounting portion 11 is formed.

The left side surface and the front side of the main body are opened to constitute an air inlet port 12 and an entrance port 13 respectively and a right side surface is formed with an air inlet port 14 and a continuous air outlet port 14 with a blueberry loading section.

The air intake port 12 formed on the left side of the main body may be provided with a metal net 121 for the purpose of protecting the contents when the air intake is not disturbed or when the outside is used outside the low temperature reservoir.

The caster 20 is installed in the lower part of the main body for the purpose of allowing the main body to be moved as a wagon, and a locking device is provided so as to restrict movement if necessary.

The knob 30 protrudes in a bar shape on the left side of the main body so as to be able to draw or push the main body together.

The roll screen 40 is installed on the upper part of the entrance for opening and closing the entrance of the main body, and it is possible to open and close by the screen due to differential pressure acting inside the main body. By using transparent vinyl screen, It can be confirmed visually.

Since the roll sill is operated up and down and does not require a separate operation space, it provides the advantage of not obstructing the entry and exit work of the blueberry in the low temperature storage space, which is a narrow space, and forms a through hole when necessary, Can be enlarged.

The differential pressure fan 50 is installed in the air discharge port 14 with the fan 51 and the safety net 52 integrally formed therebetween and is installed in a differential pressure structure for sucking and discharging the air inside the main body to the outside of the main body.

The differential pressure fan is installed to suck and discharge air from the main body to the outside of the main body so that cold air (approximately 1 to 5 ° C) in the low-temperature tank through the air inlet 12 flows into the blueberry loading part 11, It is used for dehumidification.

The application of the differential pressure fan can linearize the air flow compared with a method of blowing air into the interior and improve the uniformity of the preliminary dehumidification by generating a flow of air without a dead zone to the corners inside the blueberry mounting portion 11 .

The control unit 60 is installed on the main body for controlling the operation of the differential pressure fan and adjusting the air flow rate. The control unit 60 includes an on / off switch, an air flow rate control switch, a timer and a lighting lamp. And can be carried out in a structure controlled in conjunction with each other.

In the present invention, the blueberry loading unit 11 includes a vertical bar 111 and a cradle 112 for vertically and horizontally dividing the inner space to mount the blueberry basket.

The vertical bar 111 is a square element constituted by a square pipe. The vertical bar 111 has a function of dividing the inner space horizontally and supporting the loaded blueberry by separating back and forth and left and right elements.

The holder 112 can be formed of a square pipe or an L-shaped angle, and the front and rear vertical bars can be horizontally connected to each other, and a plurality of blueberry baskets 100 can be spaced apart So as to be vertically spaced apart from each other.

In the illustrated embodiment, the vertical bars are arranged symmetrically on the right and left of the central vertical bar, the vertical bars are arranged on the front and rear of the inner space so that the inner space of the blueberry mounting part 11 is divided into two horizontally, And divided into nine pieces in the vertical direction so that two blueberries can be mounted on each of the left and right bases of the first floor so that a total of 36 baskets can be mounted.

It is preferable that the vertical distance between the cradle and the cradle is formed such that a clearance of about 20 to 40 mm is formed in the cradle state in consideration of the height of the cradle. In order to prevent the pressing and the increase in temperature of the cradle, , The separation distance of the upper and lower cradles is about 130 ~ 150mm.

The blueberry basket loaded by the structure of the blueberry loading section 11 is loaded with the clearance of about 20 to 40 mm in the upper and lower sides and the width of the vertical bar (about 30 to 40 mm) in the left and right sides while maintaining the clearance, So that rapid pre-cooling dehumidification and uniformity can be ensured and the best quality can be maintained.

The pre-cooling dehumidifier according to the above configuration is used in a low-temperature storage tank, so that the pre-cooling and dehumidification of the blueberry can be effectively performed without a separate cooling device. However, when the blueberry is harvested at the beginning of dehumidification or in the wet or high humidity condition, So that the internal humidity is increased and saturated. In this case, the dehumidification efficiency is drastically reduced and the evaporation of the unit cooler constituting the cooling device of the low-temperature storage chamber is accelerated and the defrosting operation cycle is shortened accordingly The low temperature storage efficiency is also reduced.

The present invention proposes a dehumidifying device (70) for solving such a problem.

4 and 5 illustrate a dehumidifying device 70 according to the present invention in which a blueberry mounting portion 11 and an air outlet 14 are provided as a continuous pipe network structure having an inlet port 711 and an outlet port 712 And a drain pipe (73) connected to discharge the water contained in the water receiver to the outside, and a drain pipe (72) connected to the drain pipe The exhaust port 712 of the dehumidifying coil 71 is installed in the exhaust air flow path so as to receive a negative pressure by the exhaust air flow and the inlet port 711 of the dehumidifying coil 71 penetrates through the main body 10 and is exposed Thereby absorbing the cold air in the low-temperature reservoir.

The dehumidifying coil 71 may have various structures that can increase the amount of air contact as an element for condensing moisture by contact with air. The illustrated embodiment includes an upper pipe 713 and a lower pipe 714 And the intake pipe 716 is drawn out from the upper pipe 713 so that the intake port 711 penetrates the upper portion of the main body 10 and is connected to the outer side And the exhaust pipe 717 is drawn out from the lower pipe 715 so that the exhaust port 712 is installed in the main body 10 so as to be exposed in the vicinity of the through-air outlet 14.

The water receiver 72 is installed below the dehumidifying coil to receive the condensed water by the dehumidifying coil. The water drain pipe 73 drains the water contained in the water receiver to the outside of the main body and is discharged to the outside of the low temperature storage by appropriate means.

According to the structure of the dehumidifying device, the exhaust port of the dehumidifying coil is disposed so as to be adapted to the air flow formed by the differential pressure fan, so that the negative pressure by the Bernoulli's law acts, The air stream that draws in the cold air generated in the low temperature reservoir is induced to cool the dehumidifying coil.

On the other hand, the air introduced into the blueberry mounting portion through the air inlet 12 due to the action of the differential pressure fan condenses the moisture, while the blueberry is cooled, humidified while being humidified by warming, Is again mixed with cold air inside the cold storage tank and circulated for cooling the blueberry.

Therefore, the dehumidifying condition in the low temperature reservoir at the time of initial precooling and dehumidification is eliminated by the dehumidifier according to the present invention, the pre-cooling dehumidifying effect is raised, and the low temperature storage efficiency is improved.

According to the present invention, it is possible to construct the pre-cooling dehumidifier economically by utilizing the low-temperature storage pool distributed to the blueberry cultivation farm without applying a separate cooling device, and to provide the optimum pre- Quality uniformity can be ensured.

In addition, the dehumidifying device according to the present invention provides an effect of increasing the pre-cooling dehumidification efficiency and the low-temperature storage efficiency by preventing excessive moisture in the low-temperature storage pool in the pre-cooling and dehumidifying step of blueberry.

10: Body
11: Blueberry loading part 111: Vertical bar 112: Cradle
12: air inlet 121: metal net 13: entrance 14: air outlet
20: Casters
30: Handle
40: Roll screen
50: Differential pressure fan
51: fan 52: safety net
60:
70: Dehumidifying device
71: dehumidifying coil 711: intake port 712: exhaust port 713: upper pipe
714: lower pipe 715: connecting pipe 716: intake pipe 717: exhaust pipe
72: Water table
73: Water pipe
100: Blueberry basket

Claims (2)

The left side and the front side are opened to form an air inlet port 12 and an entrance port 13 respectively. The right side surface of the air inlet port 12 is connected to the air inlet-blueberry loading section 11 A caster 20 installed at a lower portion of the main body for movement, a movable handle 30 formed at a left side of the main body so as to be able to slide or push the main body, (40) installed at an upper portion of an entrance for opening and closing an entrance on the front surface of the main body, a differential pressure fan (50) installed at an air outlet with a differential pressure structure for sucking and discharging the air inside the main body to the outside of the main body, And a control unit (60) attached to the main body for adjusting the air volume, wherein the blueberry mounting unit (11) has a vertical bar arranged to divide the inner space horizontally, (111) Connection in the horizontal and vertical bars are made of a left and right down schedules holder (112) formed at an interval so that in pairs in a symmetrical structure vertically through the bar to the rim of a plurality of spaced walking blueberry basket 100;,
A dehumidifying coil 71 provided on an air passage connecting the blueberry mounting portion 11 and the air outlet 14 as a continuous pipe network structure having an inlet port 711 and an outlet port 712, And a drain pipe (73) connected to discharge the water contained in the water receiver to the outside. The exhaust port (712) of the dehumidifying coil is connected to the exhaust air flow And a dehumidifying device (70) configured to be installed in the path and the intake port (711) of the dehumidifying coil is exposed to the outside of the main body (10) through the main body (10) Blueberry pre-cooled dehumidifier. delete

Images