JP3783080B2 - Agricultural product dehumidification drying cooler - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an agricultural product dehumidifying and drying cooler, and in particular, energy-efficient agricultural products can be dried at low cost, agricultural products can be dried hygienically, and agricultural products can be dried without causing uneven drying, The present invention also relates to an agricultural product dehumidifying and drying cold-retaining apparatus that can be implemented at low cost with a simple structure that can be kept cold.
[0002]
[Prior art]
Agricultural products such as strawberries and strawberries can be added to dry for longer periods of time. As an agricultural product dehumidifying and drying cold-reserving device for drying and storing such agricultural products such as straws and straws, there is one disclosed in JP-A-187040.
[0003]
In this publication, air heated by an electric heater is blown upward from the floor of the apparatus by a fan, and the dried air is exhausted to the outside by an upper exhaust fan.
[0004]
[Problems to be solved by the invention]
However, the device disclosed in the above publication always heats and dries air introduced from the outside and exhausts the dried air to the outside, so that the amount of power consumed by the heater becomes very large. There is a disadvantage that causes an increase in cost.
[0005]
Moreover, since the apparatus disclosed in the above publication is always dried by introducing air from the outside, dust and germs are introduced together with air, which is disadvantageous in terms of the hygiene of dried agricultural products. There is an inconvenience, and since it is a single function device having no function other than drying agricultural products, there is an inconvenience inferior in versatility.
[0006]
Moreover, in such a device, the structure can move the air in the storage space by relying on the drying air or cooling air blown from the heater, cooler, or dehumidifier, so that the air can be brought into uniform contact with the agricultural products. In addition, there is an inconvenience that causes uneven drying due to uneven drying.
[0007]
[Means for Solving the Problems]
Therefore, in order to eliminate the inconvenience described above, the present invention provides a main body having a door for carrying agricultural products on the front side and a storage space for agricultural products inside, and a cooling machine is provided on the top plate portion of the main body. An intake port and an air outlet of the cooler are provided in the storage space below the top plate, and communicated with the intake port and the air outlet of the cooler on the lower side of the top plate, and the longitudinal direction is the width of the main body. A duct oriented in the direction is provided, and a duct inlet on one side in the longitudinal direction of the duct is provided to open downward along one side wall plate portion of the main body, and a duct outlet on the other side in the longitudinal direction of the duct Is provided so as to be directed downward along the other side wall plate portion of the main body, and a dehumidifier is provided on the floor plate portion in the vicinity of the one side wall plate portion of the main body, and the dry air outlet of the dehumidifier is connected to the duct inlet Opened to point to A heating heater and an air circulation fan are provided between the dry air outlet and the duct inlet, and the cooling is performed so that the humidity and temperature of the air in the storage space become the target humidity and the target temperature. And a dehumidifier, a heater for heating, and a control means for controlling operations of the air circulation fan.
[0008]
The control means stops the operation of the cooler, the dehumidifier, the heater for heating, and the air circulation fan when the humidity of the air in the storage space is kept lower than the target humidity for a certain period of time. The dehumidifier and the heater for heating have a dehumidifier switch and a heater switch that can be stopped independently of the operation control by the control means, respectively.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The agricultural product dehumidifying / drying / cooling apparatus of the present invention controls the operation of the cooler, the dehumidifier, and the heater for heating by the control means so that the humidity and temperature of the air in the storage space become the target humidity and the target temperature, respectively. Since the air is circulated by the duct and the air circulation fan while dehumidifying and warming, external air is not mixed into the air in the storage space, and dust and germs are not introduced together with the air.
[0010]
In addition, the agricultural product dehumidifying and drying cooler of the present invention can be uniformly contacted with agricultural products by actively circulating air, and furthermore, by circulating air using a duct, The structure is simple.
[0011]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show an embodiment of the present invention. 5-9, 2 is an agricultural product dehumidification drying cooler. The agricultural product dehumidifying and drying cooler 2 is provided with a box-shaped main body 4. The main body 4 includes a floor plate portion 6, side wall plate portions 8 and 10, a top plate portion 12, a front plate portion 14, and a back plate portion 16 formed of a heat insulating material.
[0012]
The main body 4 has an inlet 18 for agricultural products (not shown) in the front plate portion 14 on the front side, and also has a storage space 20 for agricultural products inside. The front plate portion 14 is provided with two doors 22 that open and close the carry-in port 18 pivotally supported by a hinge 24 in a double door.
[0013]
The main body 4 is provided with a cooler 26 on the upper side of the top plate 12, and an intake port 28 and an outlet 30 of the cooler 26 are provided in the storage space 20 below the top plate 12. The cooler 26 sucks the air in the storage space 20 from the air inlet 28 and cools it with the refrigerant, and blows out the cooled air from the air outlet 30 to the storage space 20.
[0014]
A duct 32 that communicates with the air inlet 28 and the air outlet 30 of the cooler 26 and that has its longitudinal direction oriented in the width direction of the main body 4 is provided below the top plate 12 facing the storage space 20. In this embodiment, as shown in FIGS. 7 and 8, two ducts 32 are provided on the door 22 side and the back plate 16 side. In addition, the space between the two ducts 32 is configured to be a duct 32 including the air inlet 28 and the air outlet 30 of the cooler 26.
[0015]
The duct 32 is provided by opening a duct inlet 34 on one side in the longitudinal direction so as to be directed downward along the one side wall plate portion 8 of the main body 4, and a duct outlet 36 on the other side in the longitudinal direction on the other side wall of the main body 4. An opening is provided along the plate portion 10 so as to be directed downward.
[0016]
A dehumidifier 38 is provided on the floor plate portion 6 near the one side wall plate portion 8 of the main body 4. The dehumidifier 38 is provided with a dehumidified air intake port 40 on the lower side and a dry air outlet 42 on the upper side. The dry air outlet 42 is provided so as to open toward the duct inlet 34.
[0017]
This agricultural product dehumidifying and drying cooler 2 is located between the dry air outlet 42 and the duct inlet 34, and is provided with a heater 44 for heating and an air circulation fan 46. In this embodiment, a heating heater 44 is provided at the dry air outlet 42 of the dehumidifier 38, and an air circulation fan 46 is provided at the duct inlet 34 of the duct 32. The heating heater 44 generates heat by electric power and heats the air. The air circulation fan 46 is driven by a fan motor 48 to send air into the duct 32.
[0018]
The cooler 26, the dehumidifier 38, the heating heater 44, and the fan motor 48 of the air circulation fan 46 are connected to the control means 50 as shown in FIG. The control means 50 includes a humidity sensor 52 that detects the humidity of the air in the storage space 20, a temperature sensor 54 that detects the temperature of the air in the storage space 20, and a humidity setting switch that sets a target humidity of the air in the storage space 20. 56, a temperature setting switch 58 for setting a target temperature of the air in the storage space 20, and an operation switch 60 are connected to each other.
[0019]
The control means 50 inputs signals from the humidity sensor 52 and the temperature sensor 54 so that the humidity and temperature of the air in the storage space 20 become the target humidity and the target temperature set by the humidity setting switch 56 and the temperature setting switch 58. The operation of the cooler 26, the dehumidifier 38, the heater 44 for heating, and the fan motor 48 is controlled.
[0020]
This control means 50 operates the cooling machine 26, the dehumidifier 38, the heating heater 44, and the fan motor 48 when the state in which the humidity of the air in the storage space 20 is lower than the target humidity is continued for a certain time. To stop. Further, the dehumidifier 38 and the heating heater 44 have a dehumidifier switch 62 and a heater switch 64 that can be stopped independently of each other, separately from the control of the operation by the control means 50.
[0021]
The control means 50, the humidity setting switch 56, the temperature setting switch 58, the operation switch 60, the dehumidifier switch 62, and the heater switch 64 are provided outside the one side wall plate portion 8 of the main body 4 as shown in FIGS. The control box 66 is provided.
[0022]
Next, the operation will be described.
[0023]
The agricultural product dehumidifying and drying cooler 2 opens the door 22 of the main body 4 and opens the carriage from the carry-in entrance 18 when drying agricultural products such as straw and straw that are to be dried in the storage space 20 of the main body 4 as shown in FIG. The agricultural products are carried into the storage space 20 (not shown) (step 100), and the target humidity and the target temperature are set by the humidity setting switch 56 and the temperature setting switch 58 (step 102).
[0024]
When the agricultural product to be dried is straw, the target humidity is set to 35% and the target temperature is set to 30 ° C. When the agricultural product to be dried is straw, the target humidity is set to 30% and the target temperature is set to 13 ° C.
[0025]
Next, the operation of the heating heater 44 is selected by the heater switch 64 (step 104), the operation of the dehumidifier 38 is selected by the dehumidifier switch 62 (step 106), and the operation switch 60 is turned on (step 108). .
[0026]
When the operation switch 60 is turned on (step 108), the control means 50 drives the fan motor 48 to operate the air circulation fan 46 (step 110), thereby controlling the humidity and temperature of the air in the storage space 20 (step 110). 112).
[0027]
As shown in FIG. 2, the control means 50 determines whether or not the humidity of the air in the storage space 20 is equal to or lower than the set target humidity (step 200), and if it is equal to or lower than the target humidity (step 200: YES). The dehumidifier 38 is turned off (step 202), and if the target humidity is exceeded (step 200: NO), the dehumidifier 38 is turned on (step 204).
[0028]
Further, as shown in FIG. 3, the control means 50 determines whether or not the temperature of the air in the storage space 20 is equal to or lower than the set target temperature (step 300). If the temperature is equal to or lower than the target temperature (step 300: YES), the heater 44 is turned on and the cooler 26 is turned off (step 302). If the target temperature is exceeded (step 300: NO), the heater 44 is turned off and the cooler 26 is turned off. Control is performed to turn on (step 304).
[0029]
Thereby, the control means 50 controls operation | movement of the cooler 26, the dehumidifier 38, the heater 44 for heating, and the fan 46 for air circulation, and adjusts the air of the storage space 20 to target humidity and target temperature.
[0030]
The air whose humidity and temperature are adjusted by the control means 50 is blown out from the duct outlet 36 of the duct 32 along the other side wall 10 to the storage space 20, deprives the crops of moisture, and dehumidifies air intake 40 of the dehumidifier 38. , And is dehumidified by the dehumidifier 38 and blown out from the dehumidified air outlet 42. The air blown out from the dehumidified air outlet 42 is heated as necessary by the heater 44 for heating, and is sucked into the duct 32 from the duct inlet 34 by the air circulation fan 46.
[0031]
The air sucked into the duct 32 is sucked from the air inlet 28 of the cooler 26 and cooled as necessary, and then blown into the duct 32 from the air outlet 30 and again from the duct outlet 36 to the storage space 20. Blown out. As a result, the air in the storage space 20 is circulated in the storage space 20 while the humidity and temperature are controlled, and the agricultural products are dried.
[0032]
Thus, when the humidity and temperature are controlled (step 112) and the agricultural product is dried, it is determined whether or not the operation switch 60 is turned off (step 114).
[0033]
If this determination (step 114) is YES, the cooler 26, the dehumidifier 38, the heating heater 44, and the fan motor 48 are stopped (step 116). When this determination (step 114) is NO, it is determined whether or not the state in which the humidity of the air in the storage space 20 is lower than the target humidity is continued for a certain time (step 118).
[0034]
If this determination (step 118) is YES, the cooler 26, the dehumidifier 38, the heater 44 for heating, and the fan motor 48 are stopped. If this determination (step 118) is NO, the process returns to humidity and temperature control (step 112).
[0035]
When the agricultural products are stored in a cold storage, the dehumidifier 38 and the heater 44 are stopped by the dehumidifier switch 62 and the heater switch 64 and the temperature at which the air is cooled by the cooler 26 is controlled.
[0036]
In this way, the agricultural product dehumidifying / drying / cooling apparatus 2 controls the operations of the cooling unit 26, the dehumidifying unit 38, the heating heater 44, and the fan motor 48 of the air circulation fan 46 by the control means 50, thereby storing the storage space. The air of the storage space 20 is circulated by the duct 32 and the air circulation fan 46 while being cooled, dehumidified, and heated so that the humidity and temperature of the air becomes the target humidity and the target temperature, respectively. Air is not mixed, and dust and germs are not introduced together with air.
[0037]
For this reason, this agricultural product dehumidifying and drying cooler 2 is energy efficient, can reduce the amount of electric power consumed by the heater 44, can dry agricultural products at low cost, and can be used for dust and dust from the outside. Agricultural products can be dried hygienically without introducing various bacteria.
[0038]
Moreover, this agricultural product dehumidification drying cooler 2 can be made to contact uniformly with agricultural products by actively circulating air, and furthermore, by circulating air using the duct 32, The structure is simple.
[0039]
For this reason, the agricultural product dehumidifying and drying cooler 2 can dry agricultural products without causing uneven drying, and can be implemented at a low cost by a simple duct structure.
[0040]
【The invention's effect】
The agricultural product dehumidifying / drying / cooling apparatus of the present invention controls the operation of the cooler, the dehumidifier, and the heater for heating by the control means so that the humidity and temperature of the air in the storage space become the target humidity and the target temperature, respectively. Since the air is circulated by the duct and the air circulation fan while dehumidifying and warming, external air is not mixed into the air in the storage space, and dust and germs are not introduced together with the air.
[0041]
Therefore, this agricultural product dehumidifying and drying cooler is energy efficient, can reduce the amount of power consumed by the heater, can store agricultural products at low cost, and dust and germs are introduced from the outside together with air. It is possible to store agricultural products hygienically.
[0042]
In addition, the agricultural product dehumidifying and drying cooler of the present invention can be uniformly contacted with agricultural products by actively circulating air, and furthermore, by circulating air using a duct, The structure is simple.
[0043]
For this reason, this agricultural product dehumidifying and drying cooler can dry agricultural products without causing uneven drying, and can be implemented at a low cost by a simple duct structure.
[Brief description of the drawings]
FIG. 1 is a flowchart of control by an agricultural product dehumidifying and drying cooler showing an embodiment of the present invention.
FIG. 2 is a flowchart of dehumidification control.
FIG. 3 is a flowchart of temperature control.
FIG. 4 is a block diagram of the control of the agricultural product dehumidifying and drying cooler.
FIG. 5 is a front view of the main body.
FIG. 6 is a side view of the main body.
FIG. 7 is a plan view of the main body.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
9 is a cross-sectional view taken along line IX-IX in FIG.
[Explanation of symbols]
2 Agricultural product dehumidification drying cooler 4 Main body 8 One side wall plate portion 10 Other side wall plate portion 12 Top plate portion 20 Storage space 22 Door 26 Cooler 28 Inlet 30 Air outlet 32 Duct 34 Duct inlet 36 Duct outlet 38 Dehumidifier 42 Dry air Air outlet 44 Heating heater 46 Air circulation fan 48 Fan motor 50 Control means 52 Humidity sensor 54 Temperature sensor 56 Humidity setting switch 58 Temperature setting switch 60 Operation switch 62 Dehumidifier switch 64 Heater switch

Claims (3)

Provided with a main body having an agricultural product inlet opening and closing by a door on the front side and an agricultural product storage space inside, a cooling machine is provided above the top plate portion of this main body, and an intake port and an outlet of this cooling machine are provided An opening is provided in the storage space below the top plate portion, and a duct is provided on the lower side of the top plate portion so as to communicate with the inlet and outlet of the cooler and the longitudinal direction thereof is directed to the width direction of the main body. A duct inlet on one side in the longitudinal direction of the duct is provided to open downwardly along one side wall plate portion of the main body, and a duct outlet on the other side in the longitudinal direction of the duct is provided along the other side wall plate portion of the main body. The dehumidifier is provided in the floor plate portion near the one side wall plate portion of the main body, the dry air outlet of the dehumidifier is provided open and directed to the duct inlet, Dry air outlet and duct A heater for heating and an air circulation fan are provided between the cooler, the dehumidifier and the heater so that the humidity and temperature of the air in the storage space become the target humidity and the target temperature. An agricultural product dehumidifying and drying cooler having control means for controlling the operation of the fan and the air circulation fan. The control means stops the operation of the cooler, the dehumidifier, the heater for heating, and the air circulation fan when the humidity of the air in the storage space is kept lower than the target humidity for a certain period of time. The agricultural product dehumidifying and drying cooler according to claim 1. 2. The agricultural product dehumidification according to claim 1, wherein the dehumidifier and the heater for heating have a dehumidifier switch and a heater switch that can be independently stopped separately from the control of the operation by the control unit. Dry cooler.

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