KR102241033B1 - Cooling system of institution for grain storage - Google Patents

Abstract

Disclosed is a cooling system for a grain storage facility, wherein the grain storage facility comprises: a main body in which a grain storage chamber is provided; and a roof structure which covers an opened upper portion of the main body. The grain storage facility further comprises the cooling system configured to maintain the temperature of a grain stored in the grain storage chamber at less than 15℃ when the temperature between an upper layer portion of the grain stored in the grain storage chamber and the roof structure and the temperature of the stored grain are increased to be more than 15℃. Moreover, the cooling system comprises: a cooling device configured to supply cold air to a portion between the upper layer portion of the grain stored in the grain storage chamber and the roof structure; and an air blowing device configured to suction the cold air supplied to the portion between the upper layer portion of the grain and the roof structure for the cold air to be induced into a lower layer portion of the stored grain so as to maintain the temperature of the stored grain at predetermined temperature.

Description

Cooling system for grain storage facilities {COOLING SYSTEM OF INSTITUTION FOR GRAIN STORAGE}

The present invention (Disclosure) relates to a cooling system for a grain storage facility, and more particularly, to a cooling system for a grain storage facility capable of maintaining the temperature of grains stored in a grain storage room below 15°C in hot weather.

Here, background technology related to the present invention is provided, and these do not necessarily mean known technology (This section provides background information related to the present disclosure which is not necessarily prior art).

In general, grains such as rice and barley harvested in production areas have excessive moisture content, so drying is essential for storage and transportation without damage.

In other words, grains such as rice and barley harvested in the production area have a moisture content of about 20 to 30%, and grains with such a high moisture content easily deteriorate during storage for storage. Will be saved.

For drying and storage of the aforementioned grains, grain storage facilities in the form of a silo are widely used, and examples of which are Korean Utility Model Registration No. 20-0288529 filed and registered by the present applicant, Korean Utility Model Publication No. No. 20-0415632, Korean Utility Model Publication No. 20-0285043, Korean Utility Model Publication No. 20-0246176, Korean Registered Patent Publication No. 10-0442999, and Korean Registered Patent Publication No. 10-0483167. I can.

On the other hand, grains stored in grain storage facilities do not have a problem due to natural cold weather during winter when the outside temperature is low, but when the outside temperature rises from March to April of the following year, grain storage facilities inside the grain storage facility, especially from the upper part of the stored grain. There was a problem that the temperature between the roof structures of the roof increased sharply, and if the grain was continuously stored in this state, the fatty acid level increased, and the quality of the grain was sharply deteriorated, such as moisture reduction, pest occurrence, lower germination rate, and increase in winter rate. There was a problem of being deteriorated.

In order to solve this problem, the above-described Korean Patent Publication No. 10-0442999 has installed a cooler 3 on the roof structure 2 of a grain storage facility (1; see Fig. 1), but the outside temperature in hot weather is 30°C or higher. When the cold air of the cooler (3) does not reach the lower layer of the stored grain, the cold air of the cooler (3) does not reach below 15℃, or when the grain at room temperature that has risen above 15℃ is brought in and put into a storage facility, the cold air of the cooler (3) is stored. There was a problem in that it took a long time (more than 2 weeks) to reach the lower layer below 15℃ or could not reach it.

Accordingly, the inventors of the present application have tried to solve the problem of the conventional grain storage facility 1, and as a result, they have applied for a patent for the present invention.

1. Korean Utility Model Publication No. 20-0288529. 2. Korean Utility Model Publication No. 20-0415632. 3. Korean Utility Model Publication No. 20-0285043. 4. Korean Utility Model Publication No. 20-0246176. 5. Korean Registered Patent Publication No. 10-0442999. 6. Korean Registered Patent Publication No. 10-0483167.

The present invention (Disclosure), by installing a blower for inducing cold air at the bottom of the bottom of the grain storage chamber made of a perforated plate, it is possible to guide the cold air supplied to the upper layer of the grain to the lower layer of the grain, thereby reducing the temperature of the grain stored in the grain storage chamber. Its purpose is to provide a cooling system for grain storage facilities that can be maintained below 15℃.

Here, a summary of the present invention is provided, and this section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

In order to solve the above problems, the cooling system for a grain storage facility according to one of the various aspects describing the present invention includes a main body provided with a grain storage room therein, and a roof covering the open upper part of the main body. In the grain storage facility having a structure, the grain storage facility increases the temperature of the stored grain when the temperature between the upper layer of grain stored in the grain storage room and the roof structure rises to 15°C or more, or when the storage grain temperature rises to 15°C or more. Including, the cooling system to be maintained below 15 ℃; cooling system, a cooling device for supplying cold air between the upper layer of the grain stored in the grain storage room and the roof structure; And a blower for inducing cold air to maintain the temperature of the stored grain at a set temperature by inhaling the cold air supplied between the upper layer of the grain and the roof structure to be guided to the lower layer of the stored grain.

In the cooling system for a grain storage facility according to an aspect of the present invention, the cooling device is installed outside the roof structure, and a ventilation duct that guides cold air between the upper layer of grain stored in the grain storage room and the roof structure at the ventilation opening of the cooling device. Is connected, and a suction duct guiding the air between the upper layer of the grain stored in the grain storage room and the roof structure to the cooling device is connected to the suction port of the cooling device, and a blowing damper and a suction damper may be installed in the blowing duct and the suction duct. .

In the cooling system for a grain storage facility according to an aspect of the present invention, a blower for inducing cold air is installed on the lower side of the bottom of the grain storage room made of a perforated plate, and the cold air sucked through the inlet is at the outlet of the blower for inducing cold air. An exhaust duct guiding exhaust to the outside of the unit is connected, and a non-powered exhaust damper may be installed at an extended end of the exhaust duct.

In the cooling system for a grain storage facility according to an aspect of the present invention, the cooling device is operated when the temperature between the upper layer of grain stored in the grain storage room and the roof structure rises to 15°C or more, and the blower for inducing cold air is internally stored. When the grain temperature rises above 15°C, the cooling device is operated together with the cooling device, and the cooling device and the blower for inducing cold air can be stopped when the grain temperature is less than 13°C.

The cooling system for a grain storage facility according to an aspect of the present invention further includes a cold air induction pipe installed on a lower side of the bottom surface of the grain storage room, and the cold air induction pipes are radially outward from the lower center of the bottom surface of the grain storage room. It is provided in an extended form, but the cold air induction pipes are connected so that the insides are in communication with each other, and a plurality of suction holes in each cold air induction pipe are formed along the longitudinal direction of the cold air induction pipes, and the connection part to which the cold air induction pipes are connected It can be connected to the inlet of the blower for inducing cold air via a connection pipe.

According to the present invention, since a blower for inducing cold air is installed at the bottom of the bottom of the grain storage chamber made of a perforated plate, it is possible to induce cold air supplied to the upper layer of the stored grain to the lower layer of the stored grain. It is possible to provide an effect of allowing the temperature of the grain to be easily maintained below 15°C.

According to the present invention, since the cold air induction pipe is installed under the bottom surface of the grain storage chamber made of a perforated plate, it is possible to provide an effect of allowing cold air to evenly pass through the stored grain when the cooling induction blower is operated.

1 is a view schematically showing a conventional grain storage facility.
Figure 2 is a view schematically showing a cooling system for a grain storage facility according to the present invention.
3 is a cross-sectional view taken along line AA of FIG. 2.

Hereinafter, an embodiment implementing the cooling system for a grain storage facility according to the present invention will be described in detail with reference to the drawings.

However, the intrinsic technical idea of the present invention cannot be said to be limited by the embodiments to be described below, and the intrinsic technical idea of the present invention is given below by a person skilled in the art. It is revealed that the embodiment described in the above is encompassed by a range that can be easily proposed by a method of substitution or change.

In addition, since the terms used below are selected for convenience of explanation, in grasping the intrinsic technical idea of the present invention, it is not limited to the dictionary meaning and is appropriately interpreted as a meaning consistent with the technical idea of the present invention It should be.

In the accompanying drawings, FIG. 2 is a view showing a cooling system for a grain storage facility according to the present invention. The grain storage facility 100 according to the present invention includes a main body 10 and a main body provided with a grain storage room 12 therein. 10) The roof structure 20 equipped with a distributor 22 for distributing the input grain while covering the open top of the body 10, and connected to the grain input hopper (not shown) outside the main body 10 to guide the grain. A vertical bucket elevator (not shown), a grain input screw device (not shown) connected to the upper part of the vertical bucket elevator to guide grain toward the distributor 22, and disposed under the main body 10 to provide room temperature ventilation to a perforated plate. To control the overall operation of the drying blower 30 for blowing to the bottom of the grain storage room 12, the stirring device 40 for stirring the grains stored in the grain storage room 12, and the grain storage facility 100 It includes a control device 50 for.

Here, the main body 10, the roof structure 20 equipped with the distributor 22, the vertical bucket elevator, the grain feeding screw device, the drying blower 30, the stirring device 40 and the control device 50 are the preceding As disclosed in the Utility Model Registration Gazette and Patent Registration Gazette described as patent documents in the technical literature, detailed descriptions and descriptions of connection relationships thereof will be omitted.

On the other hand, the grain storage facility 100 according to the present invention is a hot season in which the temperature between the upper layer of the grain stored in the grain storage compartment 12 and the roof structure 20 rises to 15°C or more, or the outside temperature rises to 30°C or more. It further includes a cooling system 110 for maintaining the temperature of the grain stored in the grain storage chamber 12 at a set temperature, that is, less than 15°C.

The cooling system 110 includes a cooling device 120 that supplies cooled and dehumidified air (hereinafter referred to as "cold air") between the upper layer of grain stored in the grain storage chamber 12 and the roof structure 20, and the upper layer of the grain. And a blower 140 for inducing cold air to maintain the temperature of the stored grain below 15°C by inducing the cold air supplied between the and the roof structure 20 to the lower layer of the stored grain.

First, the cooling device 120 sucks air between the upper layer of the grain stored in the grain storage compartment 12 and the roof structure 20 to heat-exchange the cooled and dehumidified air, that is, the cold air stored in the grain storage compartment 12 again. It is supplied between the upper part of the roof and the roof structure (20).

To this end, the cooling device 120 is installed outside the roof structure 20 while being supported on a frame, etc., as shown, but the cold air is stored in the grain storage compartment 12 in the air outlet 122 of the cooling device 120. A blowing duct 124 guiding between the upper part of the grain and the roof structure 20 is connected.

In addition, a suction duct 128 for guiding the air between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 to the cooling device 120 is connected to the inlet 126 of the cooling device 120.

At this time, the ventilation duct 124 and the suction duct 128 adjacent to the ventilation opening 122 and the inlet 126 control the flow of cold air blown from the cooling device 120 and the flow of air sucked into the cooling device 120 A blowing damper 130 and a suction damper 132 are installed.

Here, the cooling device 120 may be a conventional air conditioner or the like. And the cooling device 120, the blowing damper 130, and the suction damper 132 are controlled by the control device 50, the configuration of the cooling device 120 and the cooling device 120, the blowing damper 130, and Since the connection and operation of the suction damper 132 and the control device 50 is a known technique, a detailed description thereof will be omitted.

That is, when the temperature between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 rises above 15°C, the cooling device 120 is operated by a signal from the control device 50, and thus is operated. The cooling device 120 sucks the air between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 through the suction duct 128 and the suction port 126 to exchange heat, and then cool air vents 122 and It is supplied between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 through the blowing duct 124.

On the other hand, the cool air induction blower 140 is operated by a signal from the control device 50 when the temperature of the stored grain rises above 15°C, and the cold air induction blower 140 is operated by the cooling device 120. The cold air supplied between the upper part of the grain and the roof structure 20 is sucked so as to be guided to the lower part of the grain stored in the grain storage chamber 12, and the sucked cold air is discharged to the outside of the main body 10.

The cool air induction blower 140 is the bottom surface of the grain storage compartment 12 made of a perforated plate as shown so as to guide the cold air supplied between the upper part of the grain and the roof structure 20 to the lower part of the grain as described above. Doedoe installed on the lower side, preferably is firmly installed on the concrete foundation through anchor bolts (anchor bolts) under the bottom of the grain storage chamber (12).

At this time, an exhaust duct 146 guiding the cold air sucked through the intake port 144 to be exhausted to the outside of the main body 10 is connected to the discharge port 142 of the blower 140 for inducing the cold air, and the extension of the exhaust duct 146 At the stage, a non-powered exhaust damper 148 is installed.

Here, as anyone can see, the non-powered exhaust damper 148 opens the exhaust duct 146 when the wind pressure acts, and closes the exhaust duct 146 when the wind pressure does not work. When not done, it can prevent invasion of hot air and rats from outside.

Meanwhile, the cooling system 100 for a grain storage facility according to the present invention further includes cold air induction pipes 150 installed on the lower side of the bottom surface of the grain storage chamber 12 so as not to interfere with the cold air induction blower 140.

The cold air induction pipes 150 prevent the cold air guided from the upper layer of the stored grain to the lower layer when the cold air induction blower 140 is operated, ie, biased toward the inlet 144 of the cold air induction blower 140. .

In other words, the cold air induction pipes 150 allow the cold air guided from the upper layer to the lower layer of the stored grain when the cold air induction blower 140 is operated while evenly passing through the stored grain.

To this end, the cold air induction pipes 150 are provided in a shape extending radially outward from a point (center) as shown in FIG. 3, that is, in a shape such as a backbone of a bicycle or the like.

At this time, each of the cold air induction pipes 150 are connected so that the insides are in communication with each other, and a plurality of suction holes 152 are formed in each of the cold air induction pipes 150 along the longitudinal direction of the cold air induction pipe 150.

In addition, the connection portions of the cold air induction pipes 150 are connected to the inlet 144 of the cold air induction blower 140 via a connection pipe 154 as shown.

In FIG. 3, the cold air induction pipes 150 connected in a "+" shape when viewed from the top are shown, but the cold air induction pipes 150 are not limited to the "+" shape as shown in FIG. 3. Anyone can know.

In addition, although not shown, the cold air induction pipes 150 may be supported on a concrete foundation in which the upper perforated plate structure and the cold air induction blower 140 are installed through a bracket or the like.

That is, the cold air induction blower 140 is operated by a signal from the control device 50 when the stored grain temperature rises above 15°C, and when the cold air induction blower 140 is operated, the cold air induction blower 140 Sucks cold air supplied between the upper part of the grain stored in the grain storage compartment 12 and the roof structure 20 through the suction hole 152 of the cold air induction pipes 150, and at this time, the cold air is stored from the upper part of the stored grain to the lower part. While passing through the grain evenly, the temperature of the grain is dropped below 15℃.

In addition, the cold air guided to each of the cold air induction pipes 150 passes through the inlet 144 of the cold air induction blower 140 through the outlet 142, the exhaust duct 146 and the non-powered exhaust damper 148, and the main body 10 ) Is exhausted to the outside.

Hereinafter, the operating state of the cooling system 100 for a grain storage facility formed as described above will be briefly described.

First, when the temperature of the outside air drops to below zero around December or in January and February of the following year, the drying blower 30 is operated to cool the grain stored in the grain storage compartment 12.

After the natural cooling is completed to the cooling target temperature, the blower is stopped. At this time, a non-powered damper is installed in the middle of the blowing duct to prevent cold air from leaking through the passage outside the connecting duct.

That is, the natural cold air in winter is sucked into the grain storage compartment 12 to cool the grains stored in the grain storage compartment 12, and this operation may be repeatedly performed several times.

And when the temperature between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 rises above 15°C as the outside temperature increases from around March to April of the following year, the cooling device 120 controls the control device 50 It is activated by the signal of.

As described above, the cooling device 120 operated by the signal of the control device 50 is between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20 through the suction duct 128 and the suction port 126. Of the air, that is, the air whose temperature has risen to 15℃ or higher, and the cooling device 120 heat-exchanges the inhaled air, and then the cold air is stored in the grain storage chamber 12 through the ventilation opening 122 and the ventilation duct 124. It is supplied between the upper layer of grain and the roof structure (20).

Accordingly, between the upper layer of the grain stored in the grain storage compartment 12 and the roof structure 20 is maintained at less than 15°C, as a result, it is possible to prevent an increase in the temperature of the stored grain.

On the other hand, when the temperature of the outside air rises to 30℃ or higher in hot weather, or when high-temperature grains are put into the storage facility in other places, the stirring device 40 is operated for more than 24 hours to sufficiently agitate the grains stored in the grain storage room 12. The cooling time can be efficiently shortened by simultaneously operating the cooling device 120 and the cool air induction blower 140 after the dust and the like have subsided (after about 1 hour) in a state in which the density between grains has been reduced.

When the cooling device 120 is operated by the control device 50 in this way, the cooling device 120 supplies cold air between the upper layer of the grain stored in the grain storage chamber 12 and the roof structure 20.

And the cold air induction blower 140 sucks the cold air supplied by the cooling device 120, and the cold air is guided from the upper layer to the lower layer of the stored grain through the suction hole 152 of each cold air induction pipe 150. The temperature of the stored grain is lowered to less than 15°C.

And the cold air guided to the lower layer of the grain stored by the cold air induction blower 140 is guided to the suction port 144 through the suction hole 152 of the cold air induction pipes 150, and the cold air guided to the suction port 144 It is exhausted to the outside of the main body 10 through the discharge port 142, the exhaust duct 146, and the non-powered exhaust damper 148.

Here, the control device 50 stops the operation of the cooling device 120 and the blower 140 for inducing cold air when the temperature of the grain stored in the grain storage chamber 12 is less than 13°C.

In the cooling system 100 for a grain storage facility according to the present invention formed as described above, since the blower 140 for inducing cold air is installed under the bottom of the grain storage chamber 12 made of a perforated plate, the cold air supplied to the upper layer of the stored grain is stored. It can be guided to the lower layer of the grain, thereby making it possible to easily maintain the temperature of the grain stored in the grain storage chamber 12 below 15° C. in hot weather.

In addition, since the cooling system 100 for a grain storage facility according to the present invention has a cold air induction pipe 150 installed under the bottom of the grain storage room 12 made of a perforated plate, cold air is stored when the cooling induction blower 140 is operated. It is guided while passing through the grain evenly.

In the above, although specific embodiments of the present invention have been described and illustrated, the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and the modified embodiments should be said to belong to the claims of the present invention.

Claims (5)

In a grain storage facility having a main body provided with a grain storage room therein, and a roof structure covering the open upper part of the main body,
The grain storage facility,
When the temperature between the upper layer of the grain stored in the grain storage room and the roof structure rises above 15°C or the temperature of the stored grain rises above 15°C, the cooling system enables the temperature of the stored grain to be maintained below 15°C; Including,
The cooling system,
A cooling device for supplying cold air between the upper part of the grain and the roof structure stored in the grain storage room;
A blower for inducing cold air to maintain the temperature of the stored grain at a set temperature by inhaling the cold air supplied between the upper layer of the grain and the roof structure to be guided to the lower layer of the stored grain; And
Including; a cold air induction pipe installed on the lower side of the bottom surface of the grain storage room,
The cold air induction blower is installed on the lower side of the bottom surface of the grain storage chamber made of a perforated plate, and an exhaust duct for guiding the cold air sucked through the inlet to the outside of the main body is connected to the outlet of the cold air induction blower,
The cold air induction pipes are provided in a form extending radially outward from the lower center of the bottom surface of the grain storage chamber, and the cold air induction pipes are connected so as to communicate with each other, and a plurality of suction holes are provided in each of the cold air induction pipes. A cooling system for a grain storage facility which is formed along a longitudinal direction of an induction pipe, and the connection part to which the cold air induction pipes are connected is connected to the inlet of a blower for inducing cold air through a connection pipe.
The method according to claim 1,
The cooling device is installed outside the roof structure,
A ventilation duct for guiding cold air between the upper layer of the grain stored in the grain storage chamber and the roof structure is connected to the ventilation port of the cooling device,
A suction duct for guiding air between the upper layer of grain stored in the grain storage chamber and the roof structure to the cooling device is connected to the inlet of the cooling device,
A cooling system for a grain storage facility in which a blow damper and a suction damper are installed in the blowing duct and the suction duct.
The method according to claim 1,
A cooling system for a grain storage facility in which a non-powered exhaust damper is installed at the extension end of the exhaust duct.
The method according to claim 1,
The cooling device is operated when the temperature between the upper layer of the grain stored in the grain storage room and the roof structure rises to 15°C or more, or when the outside temperature rises to 30°C or more,
The cold air induction blower is operated together with the cooling device when the stored grain temperature rises above 15°C,
A cooling system for a grain storage facility capable of stopping operation of the cooling device and the blower for inducing cold air when the grain temperature is less than 13°C.
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