JPH05118757A - Crop storing facility - Google Patents

Abstract

PURPOSE:To perform a simple quality control of crops by a method wherein a dehumidifier having an evaporator and an outdoor installed condensor is provided with an air passage for changing over between a drying operation and a cooling operation and a fan for discharging or circulating dehumidifying air or cooling air got from the air passage to be supplied to a crop storing means is automatically controlled. CONSTITUTION:A crop storing facility is constructed such that a machine chamber is arranged adjacent to a storing chamber where a plurality of storing bins for drying and storing crops are juxtaposed, and a dehumidifier 16, a drying and blowing machine 17 and a cold air blowing machine 18 and the like are installed within the machine chamber. The other end of the air blowing duct 19 connected to the air discharging side of each of the blowers 17 and 18 is connected to each of the storing bins. In this case, the dehumidifier 16 having the evaporator 36 and an outdoor installed condensor 37 is provided with air passages 42 and 43 for changing-over between drying and cooling and at the same time a fan for discharging or circulating dehumidified air or cooling air from the air passages 42, 43 supplied to the storing bins is automatically controlled for its ON or OFF state. For example, at the time of drying operation, the drying and blowing machine 17 and the bin discharging fan are turned on to feed air of normal temperature and specified humidity into each of the storing bins.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain storage facility for maintaining the quality of grain such as paddy and storing it.

[0002]

2. Description of the Related Art Conventionally, a dehumidifier which cools the taken-in atmosphere to remove water and then returns it to room temperature to form room-temperature dehumidified air, is prepared by mixing the room-temperature dehumidified air with the atmosphere (moist air). There has been a technique of forming normal temperature and constant humidity air and drying paddy etc. with the normal temperature and constant humidity air.

[0003]

In the prior art described above, since a dryer for drying paddy and the like and a grain storage means for storing the paddy and the like are separately installed, simplification of equipment for loading and unloading paddy and the facility However, there is a problem in that it is not possible to easily reduce the cost, etc., and it is not possible to easily achieve quality maintenance management for long-term storage and simplification of the quality maintenance equipment.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a dehumidifier having an evaporator and an external condenser is provided with an air passage for switching between drying and cooling, and dehumidification from the air passage supplied to the grain storage means. Alternatively, a fan that discharges or circulates cooling air is automatically controlled to be turned on and off, and it is possible to perform drying and cooling functionally and efficiently by switching the air passage and controlling the on and off of the fan. Grain temperature control and long-term low temperature maintenance can be easily performed to simplify grain quality control, and drying and storage can be done in the same equipment to improve workability and reduce equipment costs. Can also be done easily.

Further, a dry air blower for supplying the room temperature and constant humidity air and a cool air blower for supplying the cooling air are provided so that each of the air blowers can be selectively used for drying and cooling. It is possible to easily perform simplification and reduction of power consumption.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a plan view of the storage room, FIG. 2 is a plan view of the entire storage room, FIG. 3 is a side view of the storage room, and FIG. 4 is a front view of the same.
A cargo receiving room (1) for receiving grain such as raw rice that is loaded into each cargo port, a storage room (2) for drying and storing the received grain, and a shipping room (3) for preparing and shipping the stored grain. And a rough sorter (4), a weighing machine (5), etc. are provided in the cargo receiving chamber (1), and a paddy sorting machine (6), a shipping tank (7), etc. are provided in the shipping chamber (3). It is provided.

Further, the roof and side walls forming the storage room (2) are formed by a heat insulating wall (8), and a plurality of storage bins (9) serving as grain storage means for storing grains such as paddy are arranged in two rows. Are arranged side by side in the loading / unloading conveyor (10), the unloading conveyor (11), and the loading / unloading elevator (1).
2) Equipped with (12) and (13), the grain in the receiving room (1) is stored in the storage bin (9), the grain in the storage bin (9) is stored in the shipping room (3), and the grain in the storage bin (9) is also provided. To another storage bin (9), each conveyor (10) (11) and elevator (1).
2) It is configured to move via (13).

Further, a machine room (15) is formed adjacent to the storage chamber (2) through one side of the storage bin (9) and a partition wall (14), and a dehumidifier (16) and a dry blower ( 1
7) and a cool air blower (18) having a smaller capacity than the blower (17) are installed in the machine room (15), and one end side is connected to the exhaust side of each blower (17) (18) ( 19) is provided, and the other end of the duct (19) is extended to the bottom of each storage bin (9) in a row of 4 units, and a bin drying shutter (20) is opened and closed by an electric cylinder or the like.
The air from the duct (19) is separately supplied to the bins (9) via the air conditioner, and the bins (9) via the cooling shutters (21) that are opened and closed by an electric cylinder or the like.
Outer passage space (22) between the side surface and the heat insulating wall (8) side surface
Is configured to supply the air blown from the duct (19).

Further, the upper surfaces of the respective bins (9) ... are communicated with each other.
A ceiling wall (23) for covering each bottle is provided, and each bottle (9) ...
Dehumidifying air space for opening and installing the carry-in conveyor (10)
(24) is formed on the lower surface side of the ceiling wall (23), and
Suction duct (26) with an exhaust fan (25)
Wet that is installed outside by connecting the inlet side to the space (24)
Connect the discharge side of the duct (26) to the dust collector (27).
Continue to dry the bottle from the air duct (19)
Air at room temperature and humidity on the bottom of the bottle (9) through the shutter (20)
When air or cooling air is supplied, the air will
(9) After passing through the inside, from the top opening to the dehumidification space (24)
Move from the space (24) to the dust removal device (27).
Exhausted through the fan (25) and dust duct (26)
Is configured.

Further, an attic space (29) is formed between the roof of the heat insulating wall (8) and the ceiling wall (23) through an attic partition plate (28), and the outer passageway is formed in the space (29). Left and right circulation fans (30) that suck in the air of (22) ...
Is provided on the partition plate (28), an upper exhaust fan (31) is provided on the partition wall (14) between the machine room (15) and the attic space (29), and air in the attic space (29) is blown by the fan. (31) is moved to the machine room (15) and arranged in two rows to form the inner space (32) between the inner surfaces of the bins (9) ... 9) ... At the end of the installation row, the inner passage space (32) is communicated with the outer passage space (22) through the side surface of the bottle (9), and between the machine room (15) and the inner passage space (32). A lower exhaust fan (33) is provided on the partition wall (14) to move the air in the inner space (32) to the machine room (15) by the fan (33), and the cooling shutter (from the blower duct (19) ( Cooling to the outer passage space (22) via 21) When the gas is supplied, the space (2
The cooling air in 2) moves from the attic space (29) to the machine room (15) through the fans (30) and (31), and at the same time, the cooling air in the outer passage space (22) is inward passage space (32). To the machine room (15) via the lower exhaust fan (33).

Further, an openable and closable heat insulating shutter (35) for ventilating the machine room (15) through a normally open external gallery (34) is provided, and during the drying operation, the shutter (35) is opened to open the outside air. Is taken into the machine room (15), and at the time of cooling work, the shutter (35) is closed to circulate cooling air in the storage room (2) and the machine room (15).

Further, as shown in FIG. 5, an evaporator (36) for cooling and dehumidifying, an external condenser (37) for both room temperature restoration and cooling, and a refrigerant circulating between the evaporator (36) and the condenser (37). Output adjustable scroll compressor (38) and outside air intake motor (3
9) The outside air intake duct (41) for taking in the atmosphere through the dehumidification control flap (40) which is opened and closed by 9) and the evaporator (36) through the condenser (37) are connected to the suction side of the dry blower (17). Normal temperature and humidity air passage (4
2) and the evaporator (3) via the cool air blower (18).
6) The cooling air duct (4) communicating the air duct (19)
3), a room temperature shutter (45) (45) and a dehumidifying shutter (46) which are opened and closed by an electric cylinder (44).
And the room temperature shutter (45) causes the room temperature and humidity air duct (4
The dehumidifier (16) is provided with an air-cooling fan (47) and a motor (48) for cooling the condenser (37) when the valve (2) is closed. The evaporator (36) and the motor (48) are provided inside the machine room (15). The blower (17) (18) is installed, the condenser (37) is installed outside the machine room (15) with the heat insulation wall (8) separated, and the condenser (37) is provided around the condenser (37) through the external gallery (49). It is configured to supply outside air.

Further, as shown in FIG. 6, the drying switch (50) for automatically performing the drying operation, the cooling switch (51) for automatically performing the cooling operation, and the temperature of the storage bin (9) are set. A bottle temperature sensor (52) for detecting ...
Machine room temperature sensor (5 to detect room temperature of machine room (15)
3) and a blower temperature sensor (54) for detecting the blower temperature of the blowers (17) (18), a controller (55) including a microcomputer, and drying and cooling switches (50) (51), Drying and cold air blowers (17) (18), outside air intake motor (39), compressor (38), machine room and blower temperature sensor (5)
3) (54) is connected to the controller (55).

The air passage (42) of the dehumidifier (16)
Room temperature and dehumidifying shutter (45) through a drying / cooling switching circuit (56) for switching (43) between drying and cooling
(46) via a bin drying circuit (57) and a bin exhaust circuit (58) for drying the grains in the storage bin (9), a bin drying shutter (20) and a bin exhaust fan (2).
Rotation circuit (60) for replacing the grain in the storage bin (9) with another bin (9) through the bin temperature sensor (52) via the bin temperature detection circuit (59).
A cooling circuit (61) and a cold air circulation circuit (62) for keeping the grain in the storage bin (9) below a predetermined temperature in the carry-in / carry-out conveyors (10) (11) and the carry-in / carry-out elevators (12) (13). Circulation and exhaust fan (30) (31) through
(33) are linked to each other and are connected to the controller (55) so that they can be driven and controlled freely. Grain drying control by normal temperature and constant humidity air, storage bin rotation control for replacing grains, low temperature storage control by cooling air are performed. It is configured to perform each.

As is clear from the above, the dehumidifier (16) having the evaporator (36) and the external condenser (37) has the air passages (42) (4) for switching between drying and cooling.
3), and fans (25) (30) (31) for discharging or circulating dehumidifying or cooling air from the air passages (42) (43) which are supplied to the grain storage bin (9).
The air blower (17) is provided with a dry air blower (17) for automatically turning on and off the air conditioner (33) and for supplying room temperature and constant humidity air, and a cool air blower (18) for supplying cooling air.
(18) is configured to be used separately for drying and cooling.

Then, as shown in the flow chart of FIG. 7, when the temperature of the storage bin (9) is below a predetermined value by turning on the drying switch (50), the dehumidifying / normal temperature shutters (46) and (45) are moved to the drying position ( Switch to the solid line in Fig. 5,
The outside air intake motor (39) is opened, and the dry blower (17)
Is turned on, the bin drying shutter (20) is opened, the bin exhaust fan (25) is turned on, and the compressor (38) is also turned on. The cooling air of the evaporator (36) passes through the condenser (37). And becomes room temperature dehumidified air, and room temperature and constant humidity air is formed by mixing with the atmosphere from the outside air intake duct (41), and this room temperature and constant humidity air is blown by the blower (17) to the blower duct (19) and each shutter (20). ) Through each of the bins (9) through the bottom, and the air inside the bins (9) is exhausted from the upper opening by an exhaust fan (25), and the grains inside the bins (9) are discharged. It is a normal temperature and constant humidity drying operation for drying the.

In the drying operation, when a predetermined time has passed, the carry-in / carry-out conveyors (10) (11) and the elevators (12) (13) are rotated to move the grains in the storage bin (9) to another bin. When the grain temperature of the storage bin (9) rises during the drying operation, the dehumidification / normal temperature shutter is performed at the same time as the rotation operation. (46) (45) is switched to the cooling position (phantom line in FIG. 5), the cool air blower (18) is turned on, and the cooling air of the evaporator (36) is passed through the shutter (20) and the like to the storage bin (9). ) To cool the grain in the storage bin (9) to prevent the grain quality from degrading.

Further, by turning on the cooling switch (51), the dehumidifying / normal temperature shutters (46) and (45) are switched to the cooling position (phantom line in FIG. 5), the cool air blower (18) is turned on, and the cooling shutter (18) is turned on. 21) ... are opened, the circulation / exhaust fans (30), (31) and (33) are turned on, and the compressor (38) is also turned on. The cooling air of the evaporator (36) is cooled by the cool air blower (18). Supply from the blower duct (19) to the outer passage space (22),
The cooling air in the outer passage space is returned from the attic space (29) to the machine room (15) by the circulation fan (30) and the exhaust fan (31), and also enters the inner passage space (32) from the outer passage space (22). The air is returned to the machine room (15) by an exhaust fan (33), cooling air is circulated between the storage room (2) and the machine room (15), and the outer circumference of the storage bin (9) is kept at a predetermined temperature or lower to remove grain. The low temperature storage operation is performed by the temperature sensor (52) (53).
The temperature control is automatically performed by automatically controlling the output adjustment of the compressor (38) and turning on / off of the fans (30), (31) and (33) via (54).

[0019]

As is apparent from the above-described embodiments, the present invention can be applied to the evaporator (36) and the external capacitor (3).
The dehumidifier (16) having 7) is provided with air passages (42) (43) for switching between drying and cooling, and dehumidification from the air passages (42) (43) to the grain storage means (9) or Fan (25) for discharging or circulating cooling air
(30), (31) and (33) are configured to be automatically controlled to be turned on and off, and switching of the air passages (42) and (43) and the fans (25) (30) (31) (33).
The on / off control of the can make the drying and cooling functionally and efficiently, and can easily control the grain temperature during drying and maintain the low temperature for a long time to simplify the grain quality control. In addition, by performing drying and storage in the same equipment, it is possible to easily improve workability and reduce equipment cost.

Further, a dry blower (17) for supplying room temperature and constant humidity and a cool air blower (18) for supplying cooling air are provided, and each blower (17) (18) is selectively used for drying and cooling. Each blower (17) (1
By properly using 8), it is possible to simplify the adjustment of the air volume and reduce the power consumption.

[Brief description of drawings]

FIG. 1 is a plan view of a storage room.

FIG. 2 is an overall plan view.

FIG. 3 is a side view of the storage room.

FIG. 4 is a front view of the same.

FIG. 5 is an explanatory plan view of the dehumidifier.

FIG. 6 is a drying / cooling control circuit diagram.

FIG. 7 is a flowchart of the previous figure.

[Explanation of symbols]

 (6) Storage bin (grain storage means) (16) Dehumidifier (17) Dry blower (18) Cold air blower (25) Bin exhaust fan (30) Circulation fan (31) Upper exhaust fan (33) Lower exhaust fan (36) ) Evaporator (37) Condenser (42) Room temperature and humidity air duct (43) Cooling air duct

Claims (2)

[Claims] 1. A dehumidifier having an evaporator and an external condenser is provided with an air passage for switching between drying and cooling, and a fan for discharging or circulating dehumidification or cooling air from the air passage supplied to grain storage means. A grain storage facility characterized by being configured to be automatically turned on and off. 2. A dry blower for supplying normal temperature and constant humidity air,
The grain storage facility according to claim 1, further comprising: a cool air blower that supplies cooling air, and the blowers are selectively used for drying and cooling.