JP3875055B2 - Drying equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drying device in which an air blower and an air conditioning means for adjusting air are arranged in an air circulation path that ventilates an inner chamber structure provided in the drying apparatus, and in particular, air circulation in a predetermined portion of the ventilation path. A plurality of ventilation paths are partitioned along a direction, a first blower and a cooling device for air-conditioning means are disposed in one ventilation path of the plurality of ventilation paths, and a second blower is provided in another ventilation path of the plurality of ventilation paths. It is related with the drying apparatus which can arrange | position and control the ventilation volume of a 1st air blower and a 2nd air blower, and can make the air volume of an inner chamber structure body substantially constant.
[0002]
[Prior art]
Conventionally, various drying apparatuses have been proposed in which an air conditioning means for adjusting air and a blower are arranged in an air circulation path that ventilates an inner chamber structure provided in a main body.
For example, in the air-conditioning processing facility described in Japanese Patent Application Laid-Open No. 5-268825, a blower fan is provided in a circulation path of air that is ventilated in a storage chamber that stores an object to be dried or stored. A heat pump type air conditioning means for adjusting the air is provided, wherein the blower fan is configured to be capable of reversing the ventilation direction, and a cylindrical case having both ends opened in the circulation path is provided in the circulation path. A heat exchanger for air conditioning of the air-conditioning means and a fan that ventilates the air-conditioning means are arranged side by side in a direction across the circulation path in the cylindrical case. .
[0003]
Thereby, even if the ventilation direction by a ventilation fan is reversed, the ventilation direction in a cylindrical case is a fixed direction decided by the rotation direction of the fan provided in the cylindrical case. Part of the air that is ventilated by the blower fan through the circulation path to the storage chamber is ventilated in a certain direction across the circulation path through the cylindrical case arranged in a posture that crosses the circulation path, and the heat exchanger is Passing through, constant air conditioning such as dehumidification is performed. Therefore, there is no need for an extra ventilation path or duct for reversing the direction of ventilation to the storage chamber.
In addition, the air that has been air-conditioned by passing through the heat exchanger is mixed with the air that has not passed through the heat exchanger and ventilated into the storage chamber. For example, when the heat exchanger is an evaporator and air is cooled and dehumidified, the temperature does not drop to the dew point when a large amount of air passes through the heat exchanger even though the cooling capacity of the heat exchanger is small. However, according to the above structure, part of the circulating air passes through the heat exchanger at a constant wind speed determined by the fan in the cylindrical case, so that such a phenomenon does not occur. Accordingly, the air flow direction to the storage chamber can be reversed while maintaining a constant air flow direction of the air passing through the heat exchanger with a small dead space and a simple structure.
[0004]
[Problems to be solved by the invention]
However, in the air conditioning processing facility described in the above-mentioned Japanese Patent Application Laid-Open No. 5-268825, the cylindrical case is arranged in a posture that crosses the circulation path, and a part of the circulating air is determined by the fan in the cylindrical case. Because it passes through the heat exchanger at a constant wind speed, it is necessary to change the air flow rate of the blower fan according to the dry state of the object to be dried in the storage chamber, and the air volume in the storage chamber is not constant, and the drying capacity varies. There's a problem.
[0005]
Therefore, the present invention has been made to solve the above-described problems. A predetermined portion of the ventilation path is partitioned into a plurality of ventilation paths along the air circulation direction, and one ventilation path of the plurality of ventilation paths is provided. By arranging a first blower and a cooling device for air-conditioning means on the road, arranging a second blower on the other ventilation path of the plurality of ventilation paths, and controlling the amount of air flow between the first blower and the second blower An object of the present invention is to provide a drying apparatus that can easily make the air volume of the inner chamber constituent body substantially constant and can easily change the drying capacity in accordance with the drying state of the object to be dried.
[0006]
[Means for Solving the Problems]
In order to achieve the object, a drying apparatus according to claim 1 includes an inner chamber structure provided in a main body, and an air passage formed between an outer wall portion of the inner chamber structure and an inner wall portion of the main body. And air holes formed in the left and right side wall portions of the inner chamber constituting body, air conditioning means arranged in the ventilation path to adjust air, and a blower arranged in the ventilation path, and the ventilation path In the drying apparatus in which the air circulation path is formed by the air holes, the air blower includes a partition member that partitions a predetermined portion of the ventilation path into a plurality of air ducts along the air circulation direction, and the blower includes the air ducts The first air blower disposed in at least one first air duct and the second air fan disposed in at least one second air duct among other air ducts, and the air-conditioning means The cooling means for cooling the air and the air Heating means for heating, and the cooling means is disposed only in the first air duct, and the heating means is disposed in a ventilation path downstream of the plurality of air ducts. It is characterized by.
[0007]
A drying apparatus according to a second aspect is the drying apparatus according to the first aspect, wherein the drying apparatus is provided at a predetermined location of the air circulation path and detects humidity of the air, and the humidity detection means. And a control means for controlling the amount of air blown by each of the first blower and the second blower based on the detected humidity value.
[0008]
Furthermore, the drying apparatus according to claim 3 is the drying apparatus according to claim 2, wherein the control means is configured to each of the first blower and the second blower so that the air volume in the inner chamber constituent body is substantially constant. It is characterized by controlling the amount of air flow.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a drying apparatus according to the present invention will be described in detail with reference to the drawings.
First, a schematic configuration of a drying apparatus according to the present embodiment will be described with reference to FIG. FIG. 1 is a side sectional view showing a schematic configuration of a drying apparatus according to the present embodiment.
[0010]
As shown in FIG. 1, the drying apparatus 1 according to this embodiment includes an inner chamber constituting body 3 inside a substantially box-shaped main body 2. The inner chamber structure 3 corresponds to a drying chamber that stores and dries a drying object (such as fish), and houses a shelf cart 4 on which the drying object is placed. Further, an upper ventilation path 5A, a left ventilation path 5B, and a right ventilation path 5C are formed between the outer wall portion of the inner chamber structure 3 and the inner wall portion of the main body 2. A plurality of air holes 3A communicating with the left ventilation path 5B or the right ventilation path 5C are formed in the side surface.
[0011]
Further, in the portion of the upper ventilation path 5A facing the ceiling portion of the inner chamber structure 3, the front-rear direction (the direction perpendicular to the paper surface in FIG. 1) of the substantially central portion in the height direction (the vertical direction in FIG. 1). The flat partition member 6 is disposed substantially horizontally over the entire width of the plate. Thus, the portion of the upper air passage 5A facing the ceiling portion of the inner chamber structure 3 is partitioned into two upper and lower spaces in the height direction (vertical direction in FIG. 1), and the upper air duct 7 and the lower air duct. 8 is formed.
[0012]
Further, a dehumidifying fan 10 and a cooler 11 are attached to the upper air duct 7 on the downstream side of the dehumidifying fan 10. The cooler 11 has an air suction port 11A on the upstream side surface portion and an air outlet 11B on the downstream side surface portion, and the air flowing through the cooler 11 passes through a refrigeration unit (not shown) or the like. It has the function of cooling and dehumidifying. On the other hand, an adjustment fan 12 is attached in the lower air duct 8.
Accordingly, the air circulation path R (respective arrows R 1, R 2, R 3, R 4, and the like) flows into the inner chamber structure 3 by the right ventilation path 5 C, the air blowing ducts 7 and 8, the upper ventilation path 5 A, and the left ventilation path 5 B. R5) is formed.
[0013]
A plurality of cylindrical heaters 13 are arranged in the front-rear direction (in FIG. 1, the direction perpendicular to the paper surface) in the upper ventilation path 5 </ b> A on the downstream side of the downstream edge of the partition member 6. Yes. The air blown out from the air ducts 7 and 8 passes between the heaters 13 and is heated to a predetermined temperature.
Further, a humidity sensor 15 and a temperature sensor 16 are attached to the inner side wall portion of the main body 2 in the upstream portion of the left side ventilation path 5 </ b> B downstream of each heater 13. The humidity sensor 15 and the temperature sensor 16 measure the temperature and humidity of the air flowing into the inner chamber structure 3 as will be described later.
[0014]
Next, a schematic configuration of the control system of the drying apparatus 1 configured as described above will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic configuration of a control system of the drying apparatus 1 according to the present embodiment.
As shown in FIG. 2, the control device 20 that controls the entire drying device 1 includes a microcomputer having a CPU 21, a ROM 22, a RAM 23, and a communication interface (I / F) 24, and a data bus or the like in the microcomputer. An input interface (not shown) and an output interface (not shown) are connected via a bus. An external electronic device such as a personal computer is connected to the communication I / F 24 so that temperature / humidity control data can be transmitted / received to / from an external personal computer or the like.
[0015]
Further, the drying device 1 is provided with a drive circuit 26 for the dehumidifying blower 12, a drive circuit 27 for the adjustment blower 12, a drive circuit 28 for each heater 13, and the like, and is connected to the control device 20.
Further, the control device 20 includes a humidity sensor 15 that measures the humidity of the air in the left ventilation path 5B, a temperature sensor 16 that measures the temperature of the air in the left ventilation path 5B, and measures the time to the CPU 21. A timer 30 for output and a plurality of switches for instructing start / stop of operation and various commands are provided, and an operation panel 32 having a display 31 is connected thereto.
[0016]
In addition, the ROM 22 stores a control program to be described later for driving and controlling the dehumidifying fan 10, the adjusting fan 12, and each heater 13 based on detection signals from the humidity sensor 15 and the temperature sensor 16.
The RAM 23 temporarily stores command data input from the operation panel, detection values of the sensors 15 and 16, and the like.
[0017]
Next, the air volume control process in the inner chamber structure 3 of the drying apparatus 1 configured as described above will be described with reference to FIG. FIG. 3 is a flowchart showing an example of the air volume control process in the inner chamber structure 3 of the drying apparatus 1 according to this embodiment.
First, as shown in FIG. 3, in step (hereinafter abbreviated as “S”) 1, the CPU 21 inputs each data of the set temperature and set humidity in the inner chamber structure 3 input via the operation panel 32. Is stored in the RAM 23.
[0018]
Subsequently, when the operation start button on the operation panel 32 is pressed, in S2, the CPU 21 causes the dehumidification blower 10 and the adjustment blower 12 to have substantially the same amount of air flow (for example, each of the blowers 10 and 12). The air blowers 10 and 12 are driven via the drive circuits 26 and 27 so that the air flow rate is 1.0 m 3 / min, respectively. Further, each heater 13 is heated and driven with an initial set voltage (for example, AC 100 volts) via the drive circuit 28. Therefore, the air volume in the inner chamber structure 3 is the total air volume of the dehumidifying fan 10 and the adjusting fan 12 (for example, 2.0 m 3 / min of the total air volume of each of the air fans 10 and 12) Become.). Then, the CPU 21 detects the humidity and temperature of the air flowing through the left ventilation path 5 </ b> B based on the detection signals of the humidity sensor 15 and the temperature sensor 16 and stores them in the RAM 23.
[0019]
In S3, the CPU 21 reads out the set humidity data and the measured humidity data from the RAM 23 and compares them. If the set humidity data is higher than the measured humidity data, the air volume of the dehumidifying blower 10 is stored in the ROM 22 in advance. The air flow reduced by a predetermined air flow rate (for example, 0.1 m <3> / min) is determined, and the air flow rate of the adjusting fan 12 is set to a predetermined air flow rate (for example, 0.1 m <3> / min) stored in the ROM 22 in advance. The increased air volume is determined and stored in the RAM 23 as the air volume of each of the fans 10 and 12. (For example, the amount of air blown from the dehumidifying blower 10 is 0.9 m <3> / min, and the amount of air blown from the adjusting blower 12 is 1.1 m <3> / min and stored in the RAM 23). (For example, the total air flow rate is constant at 2.0 m <3> / min.).
On the other hand, when the set humidity data is lower than the measured humidity data, the air volume of the dehumidifying blower 10 is determined to be an air volume increased by a predetermined air volume (for example, 0.1 m 3 / min) stored in advance in the ROM 22. Then, the air flow rate of the adjusting blower 12 is determined to be the air flow rate decreased by a predetermined air flow rate (for example, 0.1 m <3> / min) stored in advance in the ROM 22 and stored in the RAM 23 as the air flow rate of each of the blowers 10 and 12. To do. (For example, the amount of air blown by the dehumidifying blower 10 is 1.1 m 3 / min and the amount of air blown by the adjusting blower 12 is 0.9 m 3 / min and is stored in the RAM 23.) Accordingly, the total amount of air blown by each of the blowers 10 and 12 is constant. (For example, the total air flow rate is constant at 2.0 m <3> / min.).
[0020]
Next, in S <b> 4, the CPU 21 reads the determined air volume of each of the fans 10, 12 from the RAM 23, and the air volume of each of the fans 10, 12 is determined via the drive circuits 26, 27. The drive is controlled so that
[0021]
In S <b> 5, the CPU 21 reads the set temperature data and the measured temperature data from the RAM 23 and compares them. If the set temperature data is higher than the measured temperature data, the drive voltage of each heater 13 is set via the drive circuit 28. Is increased by a predetermined voltage (for example, AC 5 volts) stored in advance in the ROM 22 to increase the heat capacity of each heater 13 by a predetermined amount. On the other hand, the set temperature data and the measured temperature data are read from the RAM 23 and compared. When the set temperature data is lower than the measured temperature data, the drive voltage of each heater 13 is stored in advance in the ROM 22 via the drive circuit 28. The heat capacity of each heater 13 is decreased by a predetermined amount by reducing the predetermined voltage (for example, AC 5 volts).
[0022]
Subsequently, in S <b> 6, a determination process for determining whether or not the set temperature and the set humidity in the inner chamber structure 3 are changed via the operation panel 32 is executed.
When the set temperature and set humidity in the inner chamber structure 3 are changed (S6: YES), the processes after S1 are executed again.
[0023]
On the other hand, when the set temperature and the set humidity in the inner chamber structure 3 are not changed (S6: NO), in S7, a determination process for determining whether or not the operation stop button of the operation panel 32 has been pressed is performed. Execute. And when the operation stop button of the operation panel 32 is not pushed (S7: NO), based on the time information from the timer 30, after elapse of a predetermined time (for example, after elapse of 3 minutes), again after S2. Execute the process.
[0024]
In S7, when the operation stop button on the operation panel 32 is pressed (S7: YES), in S8, the blowers 10, 12, the heaters 13, and the cooler 11 are stopped and the process is terminated. To do.
[0025]
As described above in detail, the drying device 1 according to the present embodiment has an upper ventilation path 5A and a left ventilation path 5B between the inner wall portion of the substantially box-shaped main body 2 and the outer wall portion of the inner chamber structure 3. And the right ventilation path 5C are formed, and a plurality of air holes 3A communicating with the left ventilation path 5B or the right ventilation path 5C are formed on the left and right side surfaces of the inner chamber structure 3, and the air circulation path R Is configured. Further, the portion of the upper ventilation path 5 </ b> A facing the ceiling portion of the inner chamber structure 3 is partitioned by the partition member 6 into two upper and lower spaces of the upper air duct 7 and the lower air duct 8. Further, in the upper air duct 7, a dehumidifying fan 10 and a cooler 11 are attached to the downstream side of the dehumidifying fan 10, and in the lower air duct 8, an adjusting fan 12 is attached. . Furthermore, a plurality of cylindrical heaters 13 are provided in the upper ventilation path 5A on the downstream side of the downstream edge of the partition member 6, and in the left ventilation path 5B on the downstream side of the heating heater 13. Are provided with a humidity sensor 15 and a temperature sensor 16. Then, in the air volume adjustment control in the inner chamber structure 3 of the drying apparatus 1, first, when the set temperature / humidity of the inner chamber structure 3 is input by the operation panel 32 and the operation start button of the operation panel 32 is pressed, The dehumidifying blower 10 and the adjustment blower 12 are driven so that the air flow is substantially the same, and the humidity and temperature of the air flowing through the left ventilation path 5B are detected via the humidity sensor 15 and the temperature sensor 16. (S1, S2). Subsequently, when the measured temperature / humidity is different from the set temperature / humidity, each air volume is increased or decreased by a predetermined amount so that the total air volume of each of the fans 10 and 12 is constant, and each heater The drive voltage of 13 is increased or decreased by a predetermined voltage (S4, S5). If the set temperature / humidity is not changed and the operation stop button is not pressed (S6: NO, S7: NO), the processes after S2 are repeated every predetermined time. On the other hand, when there is a change in the set temperature / humidity (S6: YES), the processing after S1 is executed again, and when the operation stop button is pressed (S7: YES), each of the blowers 10, 12, The driving of the heater 13 and the cooler 11 is stopped and the process is terminated.
[0026]
Therefore, when the dehumidification amount is increased in accordance with the dry state of the object to be dried in the inner chamber structure 3, the air blow amount of the dehumidifying blower 10 is increased by a predetermined amount via the control device 20, and the adjustment blower 12 is fed. When the air volume is decreased by a predetermined amount and the dehumidification amount is decreased, the air volume of the dehumidifying fan 10 is decreased by a predetermined amount and the air volume of the adjusting fan 12 is increased by a predetermined amount via the control device 20. Accordingly, the air drying degree can be changed while keeping the air volume in the inner chamber structure 3 substantially constant, so that the drying capacity can be adjusted according to the drying state of the object to be dried in the inner chamber structure 3. It can be changed more easily and almost constant. Further, in order to drive and control each heater 13 while detecting the temperature of the air with the temperature sensor 16, the inside of the inner chamber structure 3 is changed according to the change in the blowing amount of the dehumidifying blower 10 and the adjusting blower 12. The air temperature can be easily maintained at the set temperature, and the drying capacity can be more easily changed and substantially constant according to the drying state of the object to be dried in the inner chamber structure 3.
[0027]
In addition, this invention is not limited to the said embodiment, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention.
For example, in the said embodiment, the part facing the ceiling part of the inner chamber structure 3 of 5 A of upper side ventilation paths is divided by the partition member 6 into the upper and lower 2 space of the upper ventilation duct 7 and the lower ventilation duct 8. Is a substantially flat partition member that reaches the inner wall surface of the main body 2 from the ceiling surface of the inner chamber structure 3 at the substantially central portion in the front-rear direction of the ceiling portion of the inner chamber structure 3 (perpendicular to the paper surface in FIG. 1). Is placed on the ceiling surface of the inner chamber constituting body 3 along the air circulation direction so that a portion of the upper ventilation path 5A facing the ceiling portion of the inner chamber constituting body 3 is separated into two spaces in the front-rear direction (in FIG. 1). , A dehumidifying blower 10 in one space and a cooler 11 downstream of the dehumidifying blower 10 and an adjusting blower 12 in the other space. It may be. As a result, the size of the partition member that partitions the portion of the upper ventilation path 5A facing the ceiling portion of the inner chamber structure 3 into two spaces of substantially equal size is reduced, so that the efficiency of the partition member attaching operation is improved. In addition, the manufacturing cost can be reduced.
[0028]
【The invention's effect】
As described above, in the drying apparatus according to the first aspect, the degree of dryness of the air supplied in the ventilation path is increased or decreased by increasing or decreasing the amount of air blown from the first blower in the first air duct. Moreover, the total ventilation volume of a 1st air blower and a 2nd air blower is sent in a ventilation path. Moreover, the air in the ventilation path on the downstream side of the first air duct and the second air duct is heated to a predetermined temperature by the heating means and is sent into the inner chamber structure.
As a result, when the dehumidification amount is increased in accordance with the drying state of the object to be dried in the inner chamber structure, the blast amount of the first blower is increased and the blast amount of the second blower is decreased, while the dehumidification amount is decreased. In this case, the drying capacity of the inner chamber component can be changed by decreasing the amount of air blown from the first blower and increasing the amount of air blown by the second fan. It is possible to provide a drying apparatus that can easily change the air volume and the drying capacity of the inner chamber structure in accordance with the drying state.
[0029]
Further, in the drying apparatus according to claim 2, in the drying apparatus according to claim 1, the humidity of the air sent into the inner chamber constituent body is detected through humidity detection means provided at a predetermined location of the air circulation path. Is done. And when increasing the dehumidification amount in the internal chamber structure based on this humidity detection value, while increasing the blast volume of the first blower and decreasing the blast volume of the second blower via the control means, When reducing the amount of dehumidification in the chamber structure, the amount of air blown from the first blower can be reduced and the amount of air blown from the second fan can be increased via the control means. It is possible to provide a drying apparatus that can more easily change the drying capacity of the inner chamber structure in accordance with the drying state.
[0030]
Furthermore, in the drying apparatus according to claim 3, in the drying apparatus according to claim 2, when the dehumidification amount is increased in accordance with the drying state of the object to be dried in the inner chamber structure, the first blower is provided via the control means. In the case where the air flow rate of the second air blower is increased by a predetermined amount and the air flow amount of the second air blower is decreased by a predetermined amount, while the dehumidification amount is decreased, the air flow rate of the first air blower is decreased by a predetermined amount via the control means By increasing the air flow of the blower by a predetermined amount, the air volume in the inner chamber structure is kept substantially constant, so the drying capacity can be changed more easily according to the drying state of the object to be dried in the inner chamber structure. Thus, it is possible to provide a drying apparatus that can be made substantially constant.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a schematic configuration of a drying apparatus according to the present embodiment.
FIG. 2 is a block diagram showing a schematic configuration of a control system of the drying apparatus according to the present embodiment.
FIG. 3 is a flowchart showing an example of an air volume control process in the inside chamber structure of the drying apparatus according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drying apparatus 2 Main body 3 Inner chamber structure 3A Air hole 5A Upper ventilation path 5B Left ventilation path 5C Right ventilation path 6 Partition member 7 Upper ventilation duct 8 Lower ventilation duct 10 Dehumidification blower 11 Cooler 12 Adjustment blower 13 Heating Heater 15 Humidity sensor 16 Temperature sensor 20 Control device R Air circulation path

Claims (3)

An inner chamber structure provided in the main body, a ventilation path formed between the outer wall portion of the inner chamber structure and the inner wall portion of the main body, and air holes formed in the left and right side wall portions of the inner chamber structure And an air-conditioning means arranged in the ventilation path to adjust the air and a blower arranged in the ventilation path, and a drying device in which an air circulation path is formed by the ventilation path and the air hole,
A partition member that partitions the predetermined portion of the ventilation path into a plurality of air ducts along the air circulation direction;
The blower is a first blower disposed in at least one first blow duct of the plurality of blow ducts;
A second blower disposed in at least one second blower duct of the other blower ducts,
The air conditioning means includes a cooling means for cooling air,
Heating means for heating air,
The cooling unit is disposed only in the first air duct, and the heating unit is disposed in a ventilation path downstream of the plurality of air ducts. Humidity detection means provided at a predetermined location of the air circulation path for detecting the humidity of air;
The drying apparatus according to claim 1, further comprising: a control unit that controls each of the first and second blowers based on a humidity detection value detected by the humidity detection unit. . The drying apparatus according to claim 2, wherein the control unit controls the amount of air blown from each of the first blower and the second blower so that the amount of air in the inner chamber member is substantially constant.

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