KR102441288B1 - Pre-cooled dryer using differential pressure - Google Patents

Abstract

The present invention relates to a differential pressure pre-cooling dryer, and more particularly, to a pre-cooling dryer for pre-cooling and drying fruits to a predetermined temperature or less by forming an air stream using a pressure difference.
The differential pressure pre-cooling dryer of the present invention comprises: a main body including a case having an inner space, a door installed on one side of the case, and a tray holding unit protruding into the inner space to form a support end; a differential pressure generating unit installed in the main body and generating a differential pressure in an internal space to dry agricultural products to form an airflow; A receiving part having a receiving space for accommodating agricultural products, a holding part mounted on a support end so that the receiving part can be supported in the internal space, and an inner surface of the case facing the door and the door, which is formed on the outer surface of the receiving part and a tray including a sealing part that is in contact with each and blocks the airflow moving in a path other than the mounting part.

Description

Pre-cooled dryer using differential pressure

The present invention relates to a differential pressure pre-cooling dryer, and more particularly, to a pre-cooling dryer for pre-cooling and drying fruits to a predetermined temperature or less by forming an air stream using a pressure difference.

In general, pre-cooling refers to the cooling action of pre-cooling the crops harvested in the mountainous areas (paddy fields, fields, glass greenhouses, etc.) immediately after harvest, which continues life activities, such as respiration and As the metabolism continues, decomposition and aging are accelerated due to the generation of components such as moisture or ethylene, and thus the decay proceeds rapidly, which is a factor that reduces the commercial value and food value. It is one of a series of cryopreservation methods for

These pre-cooling methods are largely divided into vacuum pre-cooling and hydro cooling.

In the case of vacuum pre-cooling, it is a cooling method in which agricultural products are stored in a vacuum chamber and then the pressure in the chamber is reduced below atmospheric pressure, thereby inducing a decrease in product temperature to cool agricultural products. However, this cooling method is suitable for pre-cooling a small amount of agricultural products because the equipment cost is very high, but has a disadvantage in that the cost is greatly increased in the case of a large amount of agricultural products.

In the case of cold water pre-cooling, it is a shower method that cools the loaded agricultural products by spraying cold water through the freezer. It also involves a cleaning action, so it is suitable for leafy vegetables and root crops. However, since it is a cold water shower method, it is also suitable for a small amount of agricultural products, and there is a disadvantage that the target items are extremely limited to the above-mentioned leafy vegetables or root vegetables.

In order to solve these problems, ventilation-type pre-cooling methods through forced ventilation have been registered in the prior art.

For example, the mobile pre-cooling and pre-drying device for fresh agricultural products published in Korean Patent Registration No. 10-0408812 has a movable structure and separates the pre-cooling and pre-drying unit and the condensing unit that selectively generate cold or hot air as independent devices, It is connected by a flexible connecting pipe that allows the refrigerant to flow between the pre-cooling and pre-drying unit and the condensing unit, and the flexible connecting pipe is a flexible pipe and is formed in a structure detachable from the pre-cooling and pre-drying unit and the condensing unit.

The above-described portable pre-cooling and pre-drying device for fresh agricultural products is advantageous in that it effectively performs pre-cooling or pre-drying of various agricultural products by using cold or hot air as a result of the combination of the refrigeration device and can also perform a transport function to move within the workplace, but it is expensive and uniform. There is a disadvantage in that it does not provide a pre-cooling or pre-drying performance.

In addition, the mobile drying device disclosed in Korean Patent Registration No. 10-0838479 is proposed to solve the cost increase factor due to the application of the cooling device. A blower fan for receiving power to blow air to the rear side of the main body, and a moving cart that is detachably provided on the rear side of the main body and has wheels to be movable, and a transport box filled with agricultural products is stacked on the upper surface, and the above; A cover for shielding both sides of the transport box except in the direction in which the wind pressure of the blowing fan travels, and a controller for receiving a detection signal through a humidity sensor provided on one side of the main body and applying a control signal to the blowing fan.

The above-mentioned mobile fore-drying device is used to remove moisture from the surface by applying wind pressure to agricultural products stacked on the bogie by a blower fan. It is difficult to achieve uniformity of fore conditions because the wind pressure is not evenly distributed. In addition, it is a device suitable for pruning of a large amount of agricultural products, and it is inefficient for pruning of a small amount of agricultural products.

Republic of Korea Patent Registration No. 10-0408812 Republic of Korea Patent No. 10-0838479

The present invention is to solve the above problems, and it is an object of the present invention to pre-cool and dry agricultural products uniformly as a whole using differential pressure.

Another object of the present invention is to provide a differential pressure pre-cooling dryer with improved drying efficiency by blocking the airflow passing through the outside of the tray while drying the tray on which agricultural products are loaded.

In order to achieve the above object, the present invention includes a case having an inner space, a door installed on one side of the case, and a body portion having a tray holding unit protruding into the inner space to form a support end; a differential pressure generating unit installed in the main body and generating a differential pressure in the inner space to dry agricultural products to form an airflow; A receiving part having a receiving space for accommodating agricultural products, a holding part mounted on the support end so that the receiving part can be supported in the inner space, is formed on the outer surface of the receiving part and includes the door and the door; and a tray including a sealing part that is in contact with the inner surface of the case facing each other and blocks the airflow moving in a path other than the mounting part.

In addition, the sealing part includes an edge part protruding from the upper part of the accommodating part and sealing the space between the accommodating part and the door and between the accommodating part and the inner side surface of the case facing the door, and the accommodating part. It is rotatably installed in the rim portion and includes a handle portion that seals between the accommodating portion and the door and between the accommodating portion and the inner side surface of the case facing the door together with the rim portion.

In addition, the rim portion includes a first rim protruding from the upper portion of the accommodating portion toward the door, a second rim protruding from the upper portion of the accommodating portion toward the inner surface of the case facing the door, and the first A first flow preventing wing protruding from the edge side and protruding to contact the door, and a second flow preventing wing protruding from the second edge side and protruding to contact the inner surface of the case facing the door, , The handle portion is located on one side of the first flow prevention wing is rotatably installed on the first edge side and the first rotation support and the first rotation support protruding equal to the protrusion length of the first flow prevention wing and A second rotation support and the first rotation support located on one side of the second flow prevention wing at a corresponding position and rotatably installed on the side of the second edge and protruding to the same length as the protrusion length of the second flow prevention wing, and A first handle having a first gripper for connecting the second rotation support, and located on the other side of the first flow-preventing wing is rotatably installed on the side of the first rim, the protrusion of the first flow-preventing wing A third rotation support protruding equal to the length and the third rotation support are located on the other side of the second flow prevention wing at a position corresponding to the length, are rotatably installed on the second edge side, and protrude the second flow prevention wing and a second handle having a fourth rotation support protruding to have the same length and a second gripper connecting the third rotation support and the fourth rotation support.

In addition, the case has an inlet through which outside air is introduced and an outlet through which the bet is discharged, and the differential pressure generating unit includes a fan module configured to discharge the bet in the inner space to the outlet to generate a differential pressure in the inner space.

In addition, the body portion further includes a vortex generating unit that is installed in the inlet to form a vortex while air passes through.

In addition, the vortex generating unit includes a body installed in the inlet, and at least one vortex inducing unit formed in the body.

In addition, the vortex induction part is formed to be penetrated at regular intervals around the circle piercing part and a circle perforated part consisting of a plurality of first curved slits formed to be penetrated at regular intervals along the trajectory of the circle, and one side is the circle ta A plurality of second curved slits that are bent clockwise or counterclockwise while facing the study and the other side extending in a direction away from the circle perforated portion, respectively, are formed in the lower portion of the plurality of second curved slits, the second curve A curved perforated portion having a second curved blade for allowing air passing through the slit to flow while rotating in the inner space, is formed to penetrate between the second curved slits and is bent in the same direction as the second curved slit. A plurality of third curved slits shorter than the second curved slit, and a third curved line respectively formed under the plurality of third curved slits to allow air passing through the third curved slit to flow while rotating in the inner space It is provided with a sub-perforated portion including a feather.

In addition, the case further includes a partition wall formed therein to divide the interior into a first space and a second space, and an inlet formed in the case to allow air to flow into the first space; The generating unit discharges the air of the second space to the outside of the case so that the air introduced through the inlet can be introduced into the second space via the first space.

In addition, it further includes a vortex generating unit installed at the inlet to form a vortex while air is introduced into the first space.

The differential pressure precooling dryer according to the present invention can uniformly precool and dry agricultural products by uniformly forming an internal airflow using the differential pressure.

In addition, the present invention can improve drying efficiency by blocking the airflow passing through the outside of the tray by having the tray having a sealing part.

1 is a perspective view showing the configuration of a differential pressure pre-cooling dryer according to an embodiment of the present invention;
Figure 2 is a perspective view showing the tray of Figure 1,
Figure 3 is a front sectional view showing the configuration of Figure 1,
Figure 4 is a perspective view showing a part of the tray in Figure 1 is cut in the retracted state,
Figure 5 is a plan view showing a part of Figure 1 cut,
Figure 6 is a perspective view showing a part of the vortex generating unit of Figure 1 cut,
7 is a perspective view showing the configuration of a differential pressure pre-cooling dryer according to another embodiment of the present invention;
FIG. 8 is a front sectional view showing the configuration of FIG. 7 .

Hereinafter, the differential pressure pre-cooling dryer of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show a differential pressure pre-cooling dryer according to an embodiment of the present invention.

1 to 4 , the differential pressure precooling dryer 1 according to an embodiment of the present invention includes a case 11 forming an inner space 12 and a door 13 installed on one side of the case 11 . ) and the inner space ( 12) and a differential pressure generating unit (4) for generating an airflow by generating a differential pressure, and a tray (6) having a accommodating space for accommodating agricultural products.

The body portion 2 includes a case 11 having an internal space 12 therein, a door 13 installed in the case 11 to open and close an opening formed in the front of the case 11 , and an internal space 12 . ) and a tray holding unit 14 protruding and formed, and a vortex generating unit 20 for generating a vortex in the airflow formed by the differential pressure generating unit 4 to be described later.

The case 11 forms an external shape, and an opening is formed in the front surface. The case 11 has an inner space 12 formed therein. An inlet and an outlet 17 are formed in the upper and lower portions of the case 11, respectively.

The door 13 is installed on the front side of the case 11 to open and close the opening of the case 11 . In addition, the door 13 is provided with a penetrating portion 13a formed through the interior so as to see through.

The tray holding unit 14 is formed to protrude into the inner space 12 of the case 11 . A support end 15 is formed on the upper surface of the tray mounting unit 14 . The tray holding unit 14 is formed by protruding vertically from both sides of the front surface where the opening of the case 11 is formed, that is, from the left and right sides of the case 11 in the direction toward the inner space 12 , respectively. In addition, along the front-rear direction of the tray holding unit 14, one side is extended to contact the door 13, the other side is formed to extend to the rear surface of the case (11). A tray to be described later is mounted on the support end 15 of the tray mounting unit 14 .

The vortex generating unit 20 is coupled to the inlet to induce a vortex of air flowing into the inner space 12 . The vortex generating unit 20 includes a body 21 coupled to the inlet, and at least two vortex inducing parts 22 that are formed to pass through the body 21 and generate a vortex when air passes.

The body 21 is formed so that the edge is bent to be a chin. The body 21 is installed to be drawn into the inlet, and the jaw is mounted on the case 11 . The body 21 is coupled to cover the inlet at the upper portion of the case 11 .

The vortex induction unit 22 includes a circle perforated portion, a curved perforated portion, and a sub perforated portion.

The circle perforated portion is made of three first curved slits 23 formed at regular intervals along the trajectory of the circle. The first curved slits 23 are each formed to be penetrated in the shape of an arc, and three are formed to have the same size and are spaced apart from each other at the same interval. The air passing through the circle perforation is induced to flow linearly toward the bottom surface of the case 11 . In order to control the flow rate of air introduced through the first curved slit 23, it may be formed in a sectoral shape.

The curved perforated portion includes a plurality of second curved slits 24 that are formed to be penetrated at regular intervals around the circled and second curved slits, and second curved feathers 25 respectively formed under the second curved slits 24 .

Each of the second curved slits 24 is formed to be bent counterclockwise with one side facing the circle pierced part and the other side extending long in a direction away from the circle piercing part. The width of the second curved slit 24 is the same, and the second curved slits 24 are formed to be spaced apart from each other.

The second curved blades 25 are respectively formed under the plurality of second curved slits 24 . The second curved blade 25 obliquely protrudes from the body 21 toward the inner space 12 . The second curved blade 25 induces the air passing through the second curved slit 24 to flow while rotating in the inner space 12 .

Unlike an embodiment of the present invention, the second curved slit 24 may be bent in a clockwise direction, and the second curved slit 24 is formed to become wider as it moves away from the circle perforated portion, thereby forming the second curved slit. The flow rate of the air introduced through (24) can be adjusted. In addition, unlike an embodiment of the present invention, the second curved blade may be formed in the shape of an inclined blade under the second curved slit 24 through lancing processing.

The sub-perforated portion is formed to penetrate between the second curved slits 24 and is bent in the same direction as the second curved slit 24 and includes a plurality of third curved slits 26 shorter than the second curved slits 24 and , each of the third curved blades (not shown) formed under the plurality of third curved slits 26 .

The third curved slit 26 is formed to be spaced apart from the second curved slit 24 , and is formed adjacent to the other side of the second curved slit 24 . The sub-perforated portion is formed to increase the inflow of air.

The third curved blades (not shown) are respectively formed under the plurality of third curved slits 26 . The third curved blade (not shown) obliquely protrudes from the body 21 toward the inner space 12 . The third curved blade (not shown) induces the air passing through the third curved slit 26 to flow while rotating in the inner space 12 .

Unlike an embodiment of the present invention, the third curved slit 26 may be bent in a clockwise direction or formed linearly, and may be formed in various shapes and sizes to control the flow rate of air passing through the sub-perforated portion. . In addition, unlike an embodiment of the present invention, the third curved blade may be formed in the shape of an inclined blade under the third curved slit 26 through lancing processing.

The differential pressure generating unit 4 discharges the air of the inner space 12 to the outlet 17 so that the air can be introduced into the inner space 12 through the inlet. The differential pressure generating unit 4 includes a cover 42 installed under the case 11 and a fan module 41 installed under the cover 42 .

The cover 42 has a ventilated grill shape, and prevents foreign substances from entering the fan module 41 .

The fan module 41 is installed under the cover 42 . The fan module 41 allows an airflow of air to be formed in a downward direction. The air in the inner space 12 is discharged to the outside through the outlet 17 by the fan module 41, and the pressure in the inner space 12 is lowered to below atmospheric pressure.

The fan module 41 according to an embodiment of the present invention is preferably provided with a fan and a motor to form a flow of air, but is not limited to the embodiment. In addition, devices capable of forming an air flow such as an air pump are provided. can be used

The tray 6 is mounted on a receiving part 60 having an accommodating space 62 for accommodating agricultural products and a support end 15 so that the accommodating part 60 can be supported in the internal space 12 . It is formed on the outer surface of the mounting part 70 and the receiving part 60 and is in contact with the door 13 and the inner surface of the body part 2 facing the door 13, respectively, so that the path other than the holding part 70 It includes a sealing portion 80 to block the air flow moving to.

The accommodating part 60 has a rectangular box shape and includes a body 61 forming an accommodating space 62 . A plurality of through holes 63 are formed in the body 61 .

Agricultural products are accommodated in the accommodation space 62 .

A plurality of through-holes 63 are formed to penetrate through the body 61 , and air passes through the through-holes 63 . The through hole is formed on the bottom and side surfaces of the body 61, and may be formed in various shapes and sizes, such as a circle, an oval, and a rectangle, in consideration of the durability of the body 61 .

The mounting portion 70 includes a pair of mounting pieces 71 protruding from the upper portion of the body 61 in the left and right directions.

A pair of mounting pieces 71 are parallel to the bottom surface of the body 61 and protrude in a direction away from each other. The bottom surface of the pair of mounting pieces 71 is in contact with the support end 15 , and the pair of mounting pieces 71 are mounted on the support end 15 .

The sealing part 80 protrudes from the upper portion of the body 61 and is a side facing the door 13 among the inner surfaces of the body 61 and the door 13 and between the body 61 and the case 11 . (11) between the body 61 and the door 13 and between the body 61 and the door 13 together with the rim part 81, which is rotatably installed on the rim part 81, and the rim part 81 for airtightness between the rear surface of (11) 61) and a handle portion 91 that seals between the rear surface of the case 11 is provided.

The rim portion 81 has a first rim edge 82 that protrudes forward in a direction from the upper portion of the body 61 toward the door 13, and a direction toward the inner surface of the case 11 facing the door 13. The second rim edge 83 protruding rearward, the first flow prevention wing 84 protruding from the first rim edge 82 and protruding to come into contact with the door 13 , and the second edge edge 83 . It is provided with a second flow-preventing wing (85) protruding so as to contact the rear surface of the case (11).

The first edge 82 protrudes from the upper portion of the body 61 . Both ends of the first edge side 82 extend in the left and right directions to be connected to the mounting pieces 71 positioned on both sides, respectively.

The second edge 83 protrudes from the upper portion of the body 61 . Both ends of the second edge side 83 extend in the left and right directions to be connected to the mounting pieces 71 positioned on both sides, respectively.

The first flow prevention wing 84 protrudes from the first edge side 82 . When the door 13 is closed while the tray 6 is mounted on the main body 2 , the protruding end of the first flow prevention wing 84 comes into contact with the door 13 . Therefore, the space between the first flow prevention wing 84 and the door 13 is sealed to block the flow of air.

The second flow prevention wing 85 protrudes from the second edge side 83 . When the door 13 is closed while the tray 6 is mounted on the main body 2 , the protruding end of the second flow prevention wing 85 is in contact with the rear surface of the case 11 . Therefore, between the second flow prevention wing 84 and the rear surface is sealed to block the flow of air.

The handle portion 91 includes a first handle 92 and a second handle 96 .

The first handle 92 is rotatable on the first rotation support 93 rotatably installed on the first edge side 82 , and the second edge edge 83 at a position corresponding to the first rotation support 93 . It includes a second rotation support 94 that is installed in a manner, and a first gripper 95 connecting the first rotation support 93 and the second rotation support 94 .

The first rotation support 93 is rotatably installed on the first edge side 82 on the right side of the first flow prevention wing 84 . The left end of the first rotation support 93 extends to the first flow prevention wing 84 . The end in the direction toward the door of the first rotation support 93 protrudes so as to be flush with the end in the direction toward the door of the first flow prevention wing 84 . Therefore, when the door 13 is closed while the tray 6 is mounted on the main body 2 , it comes into contact with the door 13 like the first flow prevention wing 84 .

The second rotation support 94 is rotatably installed on the second edge side 83 on the right side of the second flow prevention wing 85 . The left end of the second rotation support 94 extends to the second flow prevention wing 85 . The end in the direction toward the rear surface of the case 11 of the second rotation support 94 protrudes so as to be flush with the end in the direction toward the rear surface of the case 11 of the second flow prevention wing 85 . Therefore, when the door 13 is closed while the tray 6 is mounted on the main body 2 , it comes into contact with the rear surface of the case 11 like the second flow prevention wing 85 .

The first gripper 95 connects the left end of the first rotation support 93 and the left end of the second rotation support 94 .

The second handle 96 includes a third rotation support 97 rotatably installed on the first edge side 82 , a fourth rotation support 98 rotatably installed on the second edge edge 83 , and a first A second gripper 99 connecting the third rotation support 97 and the fourth rotation support 98 is provided.

The third rotation support 97 is rotatably installed on the first edge side 82 on the left side of the first flow prevention wing 84 . The right end of the third rotation support 97 extends to the first flow prevention wing 84 . The end of the third rotation support 97 toward the door protrudes so as to be flush with the end in the direction toward the door of the first flow prevention wing 84 . Therefore, when the door 13 is closed while the tray 6 is mounted on the main body 2 , it comes into contact with the door 13 like the first flow prevention wing 84 .

The fourth rotation support 98 is rotatably installed on the second edge side 83 from the left side of the second flow prevention wing 85 . The right end of the fourth rotation support 98 extends to the second flow prevention wing 85 . The end in the direction toward the rear of the case 11 of the fourth rotation support 98 protrudes so as to be flush with the end in the direction toward the rear of the case 11 of the second flow prevention wing 85 . Therefore, when the door 13 is closed while the tray 6 is mounted on the main body 2 , it comes into contact with the rear surface of the case 11 like the second flow prevention wing 85 .

The second gripper 99 connects the right end of the third rotation support 97 and the right end of the fourth rotation support 98 .

The first edge 82 and the second edge 83 may be formed with an inlet groove 86 drawn in downward so that the first gripping part 95 and the second gripping part 99 can be drawn in, respectively. have. As the first gripper 95 and the second gripper 99 are drawn into the inlet groove 86 , the upper surfaces of the first to fourth rotation supports 93 , 94 , 97 and 98 move the first to second flows. The upper surface and plane of the prevention wings (84, 85) may be.

In addition, in a state in which the first gripper 95 and the second gripper 99 are drawn into the inlet groove 86 , the first gripper 95 and the second gripper 99 protrude upward from the upper surfaces of the gripping part 95 and the second gripper 99 . A ventilation passage forming protrusion 87 may be formed. The ventilation passage forming protrusion 87 may form a ventilation passage by forming a gap between one tray 6 and another tray 6 stacked thereon.

By providing a differential pressure pre-cooling dryer according to an embodiment of the present invention, it is possible to increase the amount of air in contact with the fruit by suppressing the flow of air moving into the space between the tray and the case, thereby increasing the pre-cooling drying efficiency.

Meanwhile, FIGS. 5 to 6 show a differential pressure pre-cooling dryer according to another embodiment of the present invention. Components having the same functions as in the drawings shown above are denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

5 to 6 , in the differential pressure precooling dryer 101 according to another embodiment of the present invention, the differential pressure according to an embodiment of the present invention except for the body portion 102 and the differential pressure generating unit 104 . It has the same structure as the pre-cooling dryer (1).

The body portion 102 includes a case 111 having an internal space 112 formed therein, a partition wall 118 formed to partition the internal space 112 into a first space 112a and a second space 112b, and a first The first door 113 for opening and closing the front opening of the space 112a, the second door 114 for opening and closing the front opening of the second space 112b, and air can be introduced into the first space 112a Except for the inlet formed in the upper portion of the case 111 and the outlet formed in the upper portion of the second space (112b) has the same structure as the embodiment of the present invention.

The case 111 has a hexahedral shape, and openings through the first space 112a and the second space 112b to the outside are formed on the front surface of the case 111 , respectively. A first door 113 for opening and closing the front opening of the first space 112a and a second door 114 for opening and closing the front opening of the second space 112b are installed in the case 111 . A first through-portion 113a and a second through-portion 114a are formed in the first door 113 and the second door 114 to be able to see inside, respectively.

The case 111 includes a partition wall 118 dividing the inner space 112 into a first space 112a and a second space 112b. The partition wall 118 extends vertically from the top to the bottom of the case 111 . The partition wall 118 is perpendicular to the front surface of the case 111 . The partition wall 118 is spaced apart from the bottom surface of the case 111 so that air can move from the first space 112a to the second space 112b. Air in the first space 112a is moved from the lower part of the case 111 to the second space 112b.

The inlet is formed through the upper surface of the case 111 in a rectangular shape. The inlet is formed in the upper portion of the first space (112a) so that air can be introduced into the first space (112a).

The differential pressure generating unit 104 discharges the air in the second space 112b to the outside of the case 111 so that the air entering through the inlet can be introduced into the second space 112b via the first space 112a. . The differential pressure generating unit 104 is installed on the upper surface of the case 111 above the second space 112b. The differential pressure generating unit 104 includes a cover 142 covering the outlet formed on the upper surface of the case 111 to discharge air, and a fan module 141 installed under the cover 142 .

The cover 142 has a grill shape that allows ventilation. The cover 142 prevents foreign substances from entering through the outlet.

The fan module 141 flows air in the direction of the cover 142 to discharge the air in the second space 112b to the outside of the case 111 to lower the pressure in the second space 112b to atmospheric pressure or less.

The fan module 141 according to another embodiment of the present invention is preferably provided with a fan and a motor to form a flow of air, but the present invention is not limited thereto. Devices may be used.

By providing a differential pressure pre-cooling dryer according to another embodiment of the present invention, it can be applied to an apparatus with an expanded internal space.

Although the tilt-variable solar power generation device according to the present invention described above has been described with reference to the accompanying drawings, this is only an example, and those of ordinary skill in the art may make various modifications and equivalent other embodiments therefrom. You will understand that it is possible.

Accordingly, the scope of true technical protection of the present invention should be defined only by the technical spirit of the appended claims.

1: Differential pressure pre-cooling dryer 2: Main body
4: Differential pressure generating unit 6: Tray
11: Case 14: Tray mounting unit
20: vortex generating unit 60: receiving part
70: mounting part 80: sealing part

Claims (8)

a main body including a case having an inner space, a door installed on one side of the case, and a tray holding unit protruding into the inner space to form a support end;
a differential pressure generating unit installed in the main body and generating a differential pressure in the inner space to dry agricultural products to form an airflow;
A receiving part having a receiving space for accommodating agricultural products, a holding part mounted on the support end so that the receiving part can be supported in the inner space, is formed on the outer surface of the receiving part and includes the door and the door; and a tray including a sealing part that is in contact with the inner surface of the case facing each other and blocks the airflow moving in a path other than the mounting part; and
The sealing part includes a rim part protruding from the upper part of the accommodating part to seal between the accommodating part and the door and between the accommodating part and the inner side surface of the case, which faces the door, and is rotated in the accommodating part. Differential pressure pre-cooling, characterized in that it is installed to be possible and includes a handle part that seals between the accommodating part and the door, and between the accommodating part and a side facing the door among the inner side surfaces of the case together with the edge part. dryer. delete The method according to claim 1, wherein the rim portion includes a first rim protruding from the upper portion of the accommodating portion toward the door, and a second rim protruding from an upper portion of the accommodating portion toward an inner surface of the case facing the door; , a first flow preventing wing protruding from the first edge side and protruding to contact the door, and a second flow preventing wing protruding from the second edge side and protruding to contact the inner surface of the case facing the door have wings,
The handle portion is located on one side of the first flow prevention wing and is rotatably installed on the first edge side and corresponds to a first rotation support and the first rotation support protruding to the same length as the protrusion length of the first flow prevention blade A second rotation support and the first rotation support and the second rotation support and the first rotation support located on one side of the second flow prevention wing at a position where it is rotatably installed on the side of the second edge and protruding to the same length as the protrusion length of the second flow prevention blade A first handle having a first gripper for connecting the second rotation support, and located on the other side of the first flow-preventing wing and rotatably installed on the first edge side, the protrusion length of the first flow-preventing wing Located on the other side of the third rotation support and the second flow prevention wing at a position corresponding to the third rotation support protruding like A differential pressure pre-cooling dryer comprising a second handle having a fourth rotation support protruding like a, and a second gripper connecting the third rotation support and the fourth rotation support. According to claim 3, wherein the case is formed with an inlet through which the outside air is introduced and an outlet through which the bet is discharged,
and the differential pressure generating unit includes a fan module configured to generate a differential pressure in the internal space by discharging the bet in the internal space to the outlet. 5. The differential pressure pre-cooling dryer according to claim 4, wherein the main body further comprises a vortex generating unit installed at the inlet to form a vortex while air passes. The method of claim 5, wherein the vortex generating unit includes a body installed in the inlet, and at least one vortex inducing unit formed in the body,
The vortex inducing part comprises a circle perforated part comprising a plurality of first curved slits formed to be penetrated at regular intervals along the trajectory of the circle;
A plurality of second curved slits formed to be penetrated at regular intervals around the circle perforated portion, one side facing the circle perforated portion and the other side extending long in a direction away from the circle perforated portion, and bent in a clockwise or counterclockwise direction. and a curved perforated portion having second curved blades respectively formed under the plurality of second curved slits and allowing air passing through the second curved slits to flow while rotating in the inner space;
A plurality of third curved slits formed to penetrate between the second curved slits, bent in the same direction as the second curved slit, and shorter than the second curved slit, and a plurality of third curved slits respectively formed below the plurality of third curved slits and a sub-perforated portion including a third curved blade for allowing air passing through the third curved slit to flow while rotating in the inner space. The method of claim 3, wherein the case
A partition wall is formed inside to divide the inner space into a first space and a second space,
It further includes; an inlet formed in the case so that air can be introduced into the first space,
The differential pressure generating unit is
Differential pressure precooling dryer characterized in that the air in the second space is discharged to the outside of the case so that the air introduced through the inlet can be introduced into the second space via the first space. The differential pressure precooling dryer according to claim 7, further comprising a vortex generating unit installed at the inlet to form a vortex while air is introduced into the first space.

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