Multi-parameter grain drying section multi-physical field simulation test device and control method

Abstract

The application provides a multi-parameter grain drying section multi-physical field simulation test device, which comprises: a drying and heating device and a grain conveying device connected with each other, and the drying and heating device and the grain conveying device are electrically connected with a control device; a first temperature and humidity sensor is arranged in a hot air pipeline, a second temperature and humidity sensor is arranged in a grain storage section, and a temperature and humidity sensor group is arranged in a drying section; the temperature and humidity sensor group comprises at least one temperature and humidity sensor; a moisture sensor is arranged at an output end of the drying section; a third temperature and humidity sensor and a fourth temperature and humidity sensor are arranged at tuyere B and tuyere C respectively; and the first temperature and humidity sensor, the second temperature and humidity sensor, the temperature and humidity sensor group, the moisture sensor, the third temperature and humidity sensor and the fourth temperature and humidity sensor are electrically connected with the control device. The device provided by the application can actively detect the temperature and humidity values of the drying section, so that the dried grain obtained by the device has high drying quality and drying precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain drying, in particular to a multi-parameter grain drying section multi-physical field simulation test device and control method. BACKGROUND

[0002] Grain is a kind of heat-sensitive material, and selecting a suitable grain drying process is the basis for ensuring that the drying rate can be improved and high drying quality can be obtained during grain drying. It is found in production practice that during the grain drying process, the grain moves from top to bottom in the drying section, and the drying process is not only affected by the temperature field, but also affected by the coupling of multiple physical fields such as drying layer thickness, grain moving speed, drying hot air temperature, drying hot air speed, environmental temperature and humidity. Therefore, it is particularly important to study the influence mechanism of multi-physical field coupling on the grain drying process.

[0003] In the prior art, most of the researches are focused on the influence of process parameters of the grain dryer on the grain drying process, and there is no related research on the influence of multi-physical field coupling on the grain drying process in the drying section. At present, the patents related to the simulation test equipment of the grain drying process in the drying section of the grain dryer mainly include:

[0004] 1. Patent name: Convective and radiative combined grain drying test bed. The present application relates to a convective and radiative combined grain drying test bed, and the complementary of the drying from outside to inside and the drying from inside to outside by radiation realizes the rapid drying of grain. Different test parameters can be switched by adjusting the test bed to carry out tests, so as to determine the best drying process. However, in the experimental device, the grain is in an inclined flow bed state, which is quite different from the actual production in which the grain realizes the drying process in vertical motion. The drying characteristics of the grain under different grain moving speeds cannot be tested, the reliability of the test data is not high, and the sensor position in the device is fixed and cannot be changed, so the measurement data error is large.

[0005] 2. Patent name: Vertical wet heat controlled speed thin layer drying test bed and drying method. The present application discloses a vertical wet heat controlled speed thin layer drying test bed, which can provide the best parameter ratio for the drying experimental method, so as to achieve the final goal of improving the drying efficiency of the dryer, reducing energy consumption and ensuring the drying quality. However, this test device only considers the influence of drying hot air temperature and humidity on the grain drying process, and does not consider the comprehensive influence of multi-physical field coupling such as grain movement and drying medium speed on the drying process. The test data obtained is single, the automation level of the whole device is low, and manual operation is required.

[0006] In summary, the experimental data obtained by the current grain drying test equipment are limited to a single type of data. They cannot construct an actual production environment that matches the actual grain drying process, including multiple physical fields such as drying hot air temperature, drying hot air velocity, ambient temperature and humidity, and grain movement speed. Therefore, they cannot obtain the grain drying characteristics under the combined influence of multiple physical fields and factors. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] Therefore, the first objective of this invention is to provide a multi-parameter grain drying section multi-physics field simulation test device.

[0009] The second objective of this invention is to provide a control method applicable to the aforementioned multi-parameter grain drying section multi-physics field simulation test device.

[0010] A third objective of this invention is to provide a computer-readable storage medium.

[0011] To achieve the above objectives, the first aspect of the present invention provides a multi-parameter grain drying section multi-physics field simulation test device, comprising: a drying heating device and a grain conveying device connected to each other; the test device further comprising a control device; the drying heating device and the grain conveying device are electrically connected to the control device; a first temperature and humidity sensor is installed in the hot air duct of the drying heating device; a second temperature and humidity sensor is installed in the grain storage section of the grain conveying device; a temperature and humidity sensor group is installed in the drying section of the grain conveying device, the temperature and humidity sensor group including at least one temperature and humidity sensor; a moisture sensor is installed at the output end of the drying section; a third temperature and humidity sensor and a fourth temperature and humidity sensor are respectively installed at air outlet B and air outlet C on the drying section; the first temperature and humidity sensor, the second temperature and humidity sensor, the temperature and humidity sensor group, the moisture sensor, the third temperature and humidity sensor, and the fourth temperature and humidity sensor are electrically connected to the control device.

[0012] Preferably, the drying heating device comprises a fan, a heater and a hot air pipeline; wherein the output end of the fan is communicated with the input end of the heater, the output end of the heater is communicated with the input end of the hot air pipeline, and the output end of the hot air pipeline is communicated with the first input end of the drying section; the grain conveying device comprises an elevator, a grain storage section, a drying section, an air lock and a grain discharge tee; wherein the output end of the elevator is communicated with the input end of the grain storage section, the output end of the grain storage section is communicated with the second input end of the drying section, and the first output end of the drying section is connected with the grain discharge tee through the air lock; the first input end and the second input end of the elevator are respectively provided with a first grain inlet and a second grain inlet, the second output end and the third output end of the drying section are respectively provided with a wind port B and a wind port C, and the grain discharge tee is respectively provided with a grain outlet and a circulation port; the air lock comprises a motor, and the fan, the heater, the elevator, the motor and the grain discharge tee are electrically connected with the control device.

[0013] Preferably, the drying section is detachably connected with the hot air pipeline, the grain storage section and the air lock.

[0014] Preferably, the control device is provided with a touch screen.

[0015] Preferably, the drying section is provided with a first window, and the first window is marked with a low-limit line of grain inlet; the grain storage section is provided with a second window, and the second window is marked with a high-limit line of grain inlet.

[0016] The technical scheme of the second aspect of the present application also provides a control method suitable for the multi-parameter grain drying section multi-physical field simulation test device in any of the technical schemes, and the control method comprises the following steps: receiving a grain feeding instruction; the grain conveying device sequentially conveys the grain into the grain storage section and the drying section; when the grain feeding amount reaches a preset range, a drying instruction is received; the drying heating device is controlled to dry the grain in the grain storage section and the drying section; instructions for setting the air pipe temperature and humidity set value, the grain storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the temperature and humidity set value at air outlet B, and the temperature and humidity set value at air outlet C are received; the actual value of the air pipe temperature and humidity is detected in real time by the first temperature and humidity sensor, the actual value of the grain storage section temperature and humidity is detected in real time by the second temperature and humidity sensor, the actual value of the drying section temperature and humidity is detected in real time by the temperature and humidity sensor group, the actual value of the moisture at the output end of the drying section is detected in real time by the moisture sensor, the actual value of the temperature and humidity at air outlet B is detected in real time by the third temperature and humidity sensor, and the actual value of the temperature and humidity at air outlet C is detected in real time by the fourth temperature and humidity sensor; when the actual value of the air pipe temperature and humidity reaches the air pipe temperature and humidity set value, the actual value of the grain storage section temperature and humidity reaches the grain storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the temperature and humidity at air outlet B reaches the temperature and humidity set value at air outlet B, and the actual value of the temperature and humidity at air outlet C reaches the temperature and humidity set value at air outlet C, the drying heating device is controlled to stop drying the grain in the grain storage section and the drying section, and the grain conveying device is controlled to discharge the grain.

[0017] Preferably, in the case that the drying heating device comprises a fan, a heater and a hot air pipeline, and the grain conveying device comprises an elevator, a storage section, a drying section, an airtight device and a discharge three-way joint, the control method specifically comprises: receiving a grain feeding instruction when the circulation port and the second grain feeding port are in a connected state; controlling the elevator, the first grain feeding port and the circulation port to be in an open state respectively, and controlling the airtight device and the discharge port to be in a closed state respectively, to realize a first grain feeding operation; receiving a batch grain drying instruction or a continuous grain drying instruction when the grain feeding amount reaches a preset range; controlling the fan, the heater, the airtight device and the second grain feeding port to be in an open state respectively, and controlling the first grain feeding port and the discharge port to be in a closed state when the batch grain drying instruction is received; receiving an instruction for setting a pipeline temperature and humidity setting value, a storage section temperature and humidity setting value, a drying section temperature and humidity setting value, a drying section moisture setting value, a wind port B temperature and humidity setting value and a wind port C temperature and humidity setting value; detecting an actual value of the pipeline temperature and humidity by a first temperature and humidity sensor, detecting an actual value of the storage section temperature and humidity by a second temperature and humidity sensor, detecting an actual value of the drying section temperature and humidity by a temperature and humidity sensor group, detecting an actual value of the drying section moisture by a moisture sensor, detecting an actual value of the wind port B temperature and humidity by a third temperature and humidity sensor, and detecting an actual value of the wind port C temperature and humidity by a fourth temperature and humidity sensor; controlling the rotating speed of the fan to adjust the actual value of the pipeline temperature and humidity; controlling the fan, the heater and the circulation port to be in a closed state, and controlling the airtight device and the discharge port to be in an open state when the actual value of the pipeline temperature and humidity reaches the pipeline temperature and humidity setting value, the actual value of the storage section temperature and humidity reaches the storage section temperature and humidity setting value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity setting value, the actual value of the drying section moisture reaches the drying section moisture setting value, the actual value of the wind port B temperature and humidity reaches the wind port B temperature and humidity setting value, and the actual value of the wind port C temperature and humidity reaches the wind port C temperature and humidity setting value, to realize a discharge operation; and controlling the fan, the heater and the airtight device to be in an open state, and controlling the first grain feeding port, the circulation port, the discharge port and the elevator to be in a closed state when the continuous grain drying instruction is received; receiving an instruction for setting a pipeline temperature and humidity setting value, a storage section temperature and humidity setting value, a drying section temperature and humidity setting value, a drying section moisture setting value, a wind port B temperature and humidity setting value and a wind port C temperature and humidity setting value; detecting an actual value of the pipeline temperature and humidity by a first temperature and humidity sensor, detecting an actual value of the storage section temperature and humidity by a second temperature and humidity sensor, detecting an actual value of the drying section temperature and humidity by a temperature and humidity sensor group, detecting an actual value of the drying section moisture by a moisture sensor, detecting an actual value of the wind port B temperature and humidity by a third temperature and humidity sensor, and detecting an actual value of the wind port C temperature and humidity by a fourth temperature and humidity sensor; controlling the rotating speed of the fan to adjust the actual value of the pipeline temperature and humidity.When the actual value of the air duct temperature and humidity reaches the air duct temperature and humidity set value, the actual value of the storage section temperature and humidity reaches the storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the temperature and humidity at the tuyere B reaches the temperature and humidity set value at the tuyere B, and the actual value of the temperature and humidity at the tuyere C reaches the temperature and humidity set value at the tuyere C, the control method controls the air lock and the grain outlet to be in an open state and controls the circulating port to be in a closed state to realize the first grain discharge operation; the control method controls the first grain inlet, the circulating port and the elevator to be in an open state and controls the grain outlet to be in a closed state to realize the second grain feeding operation, and the steps after receiving the continuous grain drying instruction are executed cyclically until the Nth grain discharge operation is realized.

[0018] Preferably, before the step of realizing the grain discharge operation, the control method further comprises: receiving an instruction of setting the rotational frequency set value of the motor; and detecting the actual value of the rotational frequency of the motor in real time until the actual value of the rotational frequency of the motor reaches the rotational frequency set value of the motor.

[0019] Preferably, the control method further comprises: storing the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the temperature and humidity set value at the tuyere B, the temperature and humidity set value at the tuyere C, and the rotational frequency set value of the motor; receiving an instruction of data query and / or data export; displaying the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the temperature and humidity set value at the tuyere B, the temperature and humidity set value at the tuyere C, and the rotational frequency set value of the motor; and / or sending the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the temperature and humidity set value at the tuyere B, the temperature and humidity set value at the tuyere C, and the rotational frequency set value of the motor to an external storage device.

[0020] The technical solution of the third aspect of the application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to realize the steps of the control method in any of the above technical solutions.

[0021] The application has the following beneficial effects:

[0022] (1) The multi-parameter grain drying section multi-physical field simulation test device provided by the present application detects the air pipe temperature and humidity in the hot air pipe of the drying heating device through the first temperature and humidity sensor, detects the temperature and humidity in the grain storage section of the grain conveying device through the second temperature and humidity sensor, detects the temperature and humidity in the drying section of the grain conveying device through the temperature and humidity sensor group, detects the moisture value at the output end of the drying section through the moisture sensor, that is, obtains the moisture value of the dried grain, detects the temperature and humidity at the tuyere B and tuyere C on the drying section through the third temperature and humidity sensor and the fourth temperature and humidity sensor, and obtains the temperature and humidity of the wet hot air discharged from the drying section. The temperature and humidity value in the drying section environment can be actively detected, which makes up for the technical blank in the prior art that the temperature and humidity in the drying section is not actively detected. Further, the influence of the grain drying process is not only affected by the temperature and humidity in the hot air pipe, the temperature and humidity in the grain storage section, the moisture value of the dried grain, and the temperature and humidity of the wet hot air discharged from the drying section, but more importantly, the temperature and humidity value in the drying section. The present application can measure the temperature and humidity value in the drying section by fixed-point measurement or multi-point data measurement, so that the sensor position in the test device is not fixed, the measurement data error is small, and the dried grain after the test device has high drying quality and drying precision.

[0023] (2) The multi-parameter grain drying section multi-physical field simulation test device provided by the present application can automatically receive grain feeding operation instructions, batch grain drying test instructions, and continuous grain drying test. The automation level of the entire test device is high, and the drying of the grain can be realized without complex manual operation. Further, during the batch grain drying test and the continuous grain drying test, the user can modify the air pipe temperature and humidity setting value, the grain storage section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the tuyere B temperature and humidity setting value, and the tuyere C temperature and humidity setting value. When the actual value detected by each sensor reaches the above setting value, the grain discharging operation is performed, so that the dried grain after the test device has high drying quality and drying precision.

[0024] (3) The multi-parameter grain drying section multi-physical field simulation test device provided by the present application can modify the rotational speed frequency setting value of the motor during the batch grain drying test and the continuous grain drying test. When the actual value of the rotational speed frequency of the motor reaches the setting value, the grain discharging operation is performed, the control of the grain discharging speed during the grain drying process is realized, and the dried grain after the test device has high drying quality and drying precision.

[0025] (4) The multi-parameter grain drying section multi-physical field simulation test device and control method provided by the application obtains test data of the grain drying characteristics under different drying process parameter settings, the obtained test data is more in line with the actual production conditions of grain drying, and the comprehensive influence of multi-physical field coupling on the grain drying process is considered. Further, through continuous testing, the simulation analysis test of the multi-physical field is carried out, and then the wind pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the wind port B temperature and humidity setting value, the wind port C temperature and humidity setting value, and the motor speed frequency setting value are recorded and stored. These stored data can provide reliable data support for the influence mechanism of multi-physical field coupling on the grain drying process.

[0026] Additional aspects and advantages of the application will become apparent from the following description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic diagram of a multi-parameter grain drying section multi-physical field simulation test device of one embodiment of the application is shown;

[0028] Figure 2 A position distribution schematic diagram of each sensor of the multi-parameter grain drying section multi-physical field simulation test device of one embodiment of the application is shown;

[0029] Figure 3a A front view of the drying section in Figure 1 is shown;

[0030] Figure 3b A left view of the drying section in Figure 1 is shown;

[0031] Figure 3c A top view of the drying section in Figure 1 is shown;

[0032] Figure 3d A sectional view of the drying section in Figure 1 is shown;

[0033] Figure 4 A flow schematic diagram of a control method for the multi-parameter grain drying section multi-physical field simulation test device of one embodiment of the application is shown.

[0034] Wherein, 1 heater, 2 fan, 3 hot air duct, 4 control device, 5 grain storage section, 6 elevator, 7 drying section, 8 air lock, 801 motor, 9 grain discharge tee, 10 grain outlet, 11 circulation port, 12 first grain inlet, 13 second grain inlet, 701 first temperature and humidity sensor, 702 second temperature and humidity sensor, 703 to 711 temperature and humidity sensor, 712 third temperature and humidity sensor, 713 fourth temperature and humidity sensor, 714 moisture sensor. DETAILED DESCRIPTION

[0035] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other in the case of no conflict.

[0036] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0037] Figure 1 The structural schematic diagram of the multi-parameter grain drying section multi-physical field simulation test device of one embodiment of the present application is shown. Figure 2 The position distribution schematic diagram of each sensor of the multi-parameter grain drying section multi-physical field simulation test device of one embodiment of the present application is shown.

[0038] As Figure 1 and Figure 2As shown, a multi-parameter grain drying section multi-physical field simulation test device, comprising: a drying heating device and a grain conveying device connected with each other, the test device further comprising a control device 4, and the drying heating device and the grain conveying device are electrically connected with the control device 4 respectively; a first temperature and humidity sensor 701 is arranged in a hot air pipeline 3 of the drying heating device, a second temperature and humidity sensor 702 is arranged in a grain storage section 5 of the grain conveying device, a temperature and humidity sensor group is arranged in a drying section 7 of the grain conveying device, the temperature and humidity sensor group comprises a temperature and humidity sensor 703 (i.e. a fifth temperature and humidity sensor), a temperature and humidity sensor 704 (i.e. a sixth temperature and humidity sensor), a temperature and humidity sensor 705 (i.e. a seventh temperature and humidity sensor), a temperature and humidity sensor 706 (i.e. an eighth temperature and humidity sensor), a temperature and humidity sensor 707 (i.e. a ninth temperature and humidity sensor), a temperature and humidity sensor 708 (i.e. a tenth temperature and humidity sensor), a temperature and humidity sensor 709 (i.e. an eleventh temperature and humidity sensor), a temperature and humidity sensor 710 (i.e. a twelfth temperature and humidity sensor), and a temperature and humidity sensor 711 (i.e. a thirteenth temperature and humidity sensor), a moisture sensor 714 is arranged at an output end of the drying section 7, and a third temperature and humidity sensor 712 and a fourth temperature and humidity sensor 713 are arranged at tuyere B and tuyere C on the drying section 7 respectively; the first temperature and humidity sensor 701, the second temperature and humidity sensor 702, the temperature and humidity sensor group, the moisture sensor 714, the third temperature and humidity sensor 712, and the fourth temperature and humidity sensor 713 are electrically connected with the control device 4 respectively.

[0039] The multi-parameter grain drying section multi-physical field simulation test device provided by the application can detect the temperature and humidity of the hot air pipeline 3 of the drying heating device through the first temperature and humidity sensor 701, detect the temperature and humidity in the grain storage section 5 of the grain conveying device through the second temperature and humidity sensor 702, detect the temperature and humidity in the drying section 7 of the grain conveying device through the temperature and humidity sensor group, detect the moisture value at the output end of the drying section 7 through the moisture sensor 714, i.e. obtain the moisture value of the dried grain, and detect the temperature and humidity at tuyere B and tuyere C on the drying section 7 through the third temperature and humidity sensor 712 and the fourth temperature and humidity sensor 713, i.e. obtain the temperature and humidity of the wet hot air discharged from the drying section 7, so that the temperature and humidity value in the drying section environment can be actively detected, and the technical blank of not actively detecting the temperature and humidity parameter in the drying section in the prior art is made up.

[0040] Further, since the influence of the grain drying process is not only affected by the temperature and humidity in the hot air pipe 3, the temperature and humidity in the grain storage section 5, the moisture content of the dried grain, and the temperature and humidity of the wet hot air discharged from the drying section 7, but more importantly, the temperature and humidity value in the drying section 7, the present application can measure the temperature and humidity value in the drying section 7 by fixed-point measurement, or measure the temperature and humidity value in the drying section 7 by multi-point data measurement, that is, the present application detects the temperature and humidity of the upper part of the drying section 7 in real time through the temperature and humidity sensor 703 (i.e. the fifth temperature and humidity sensor), the temperature and humidity sensor 704 (i.e. the sixth temperature and humidity sensor), and the temperature and humidity sensor 705 (i.e. the seventh temperature and humidity sensor), detects the temperature and humidity of the middle part of the drying section 7 in real time through the temperature and humidity sensor 706 (i.e. the eighth temperature and humidity sensor), the temperature and humidity sensor 707 (i.e. the ninth temperature and humidity sensor), and the temperature and humidity sensor 708 (i.e. the tenth temperature and humidity sensor), and detects the temperature and humidity of the lower part of the drying section 7 in real time through the temperature and humidity sensor 709 (i.e. the eleventh temperature and humidity sensor), the temperature and humidity sensor 710 (i.e. the twelfth temperature and humidity sensor), and the temperature and humidity sensor 711 (i.e. the thirteenth temperature and humidity sensor), so that the sensor position in the test device is not fixed, the measurement data error is small, and the dried grain after passing through the test device has high drying quality and drying precision.

[0041] The drying and heating device comprises a fan 2, a heater 1 and a hot air pipe 3; wherein the output end of the fan 2 is in communication with the input end of the heater 1, the output end of the heater 1 is in communication with the input end of the hot air pipe 3, and the output end of the hot air pipe 3 is in communication with the first input end of the drying section 7; the grain conveying device comprises an elevator 6, a grain storage section 5, a drying section 7, an air lock 8 and a grain discharge tee 9; wherein the output end of the elevator 6 is in communication with the input end of the grain storage section 5, the output end of the grain storage section 5 is in communication with the second input end of the drying section 7, and the first output end of the drying section 7 is connected with the grain discharge tee 9 through the air lock 8; the first input end and the second input end of the elevator 6 are respectively provided with a first grain inlet 12 and a second grain inlet 13, the second output end and the third output end of the drying section 7 are respectively provided with a wind port B and a wind port C, and the grain discharge tee 9 is respectively provided with a grain outlet 10 and a circulation port 11; the air lock 8 comprises a motor 801, and the fan 2, the heater 1, the elevator 6, the motor 801 and the grain discharge tee 9 are electrically connected with the control device 4.

[0042] In the embodiment, the air inlet A is arranged on the fan 2, and the fan 2 sucks the outside cold air into the heater 1 through the air inlet A to heat the outside cold air, and the outside cold air is changed into dry hot air after being heated by the heater 1, and the dry hot air enters the drying section 7 through the hot air pipeline 3. When the grain is fed in, the wet grain enters the elevator 6 through the first grain feeding port 12, and the wet grain is transported into the grain storage section 5 and the drying section 7 by the elevator 6, and the moisture in the wet grain is evaporated after the dry hot air contacts the wet grain, and the dry hot air is changed into humid air and discharged through the air inlets B and C. When the grain is discharged, the dried grain is discharged through the grain discharging port 10.

[0043] In the embodiment, the heater 1 is a resistance wire heater.

[0044] In the embodiment, the drying section 7 is detachably connected to the hot air pipeline 3, the grain storage section 5 and the air lock 8. In a specific embodiment, the test device provides five interchangeable drying sections 7, and the drying sections 7 are divided into a parallel flow drying section, a counter flow drying section, a parallel and counter flow drying section, a cross flow drying section and a mixed flow drying section. The five different drying sections correspond to the distribution of the temperature field under five different drying modes. The grain flow direction and the dry hot air movement direction in the drying section are different under different modes. Specifically, the movement direction of the dry hot air in the parallel flow drying section is the same as the grain flow direction. The movement direction of the dry hot air in the counter flow drying section is opposite to the grain flow direction. The movement direction of the dry hot air in the parallel and counter flow drying section is both the same and opposite to the grain flow direction. The dry hot air in the cross flow drying section passes through the grain layer vertically. The movement direction of the dry hot air in the mixed flow drying section is both the same, opposite and vertically intersected with the grain flow direction. The user can select different drying sections according to the grain variety, grain drying scale and region. The drying section of the test device is completed by five separate drying sections, and only one drying section can be installed during work. The external interface sizes of the five drying sections are completely consistent, and the interchange is convenient.

[0045] In the embodiment, the drying section 7 is a parallel and counter flow drying section. As shown in Figure 3a 、 Figure 3b 、 Figure 3c and Figure 3d , the drying section in Figure 1 is Figure 3a 、 Figure 3b 、 Figure 3c and Figure 3d respectively show the front view, the left view, the top view and the sectional view of the parallel and counter flow drying section.

[0046] In the embodiment, the touch screen is arranged on the control device 4, and the visual operation of the test device is realized, and the user can directly modify the parameters on the touch screen, so that the operation of the user is simple and fast.

[0047] In the embodiment, the first window is arranged on the drying section 7, and a low limit line of grain feeding is marked on the first window; the second window is arranged on the grain storage section 5, and a high limit line of grain feeding is marked on the second window. By arranging the low limit line and the high limit line of grain feeding, the user of the test device can observe the grain feeding amount through the first window and the second window respectively when the grain feeding amount is higher than the low limit line and lower than the high limit line, so that it can be quickly judged that the grain feeding amount has reached the preset range, the subsequent operation is facilitated, and the operation of the user of the test device is further more convenient and fast.

[0048] In the embodiment, the control device 4 adopts the programmable controller certified by ISO9001 of the SIEMENS company in Germany, and adopts the STEP 7-Micro / WIN SMART software for control and programming.

[0049] Figure 4 A flowchart of a control method of a multi-parameter grain drying section multi-physical field simulation test device is shown, which is an embodiment of the application. As shown in the figure, Figure 4 The control method comprises the following steps:

[0050] Step 402, receiving a grain feeding instruction;

[0051] Step 404, the grain conveying device sequentially conveys the grain into the grain storage section and the drying section;

[0052] Step 406, receiving a drying instruction when the grain feeding amount reaches the preset range;

[0053] Step 408, controlling the drying and heating device to dry the grain in the grain storage section and the drying section;

[0054] Step 410, receiving an instruction for setting the wind pipe temperature and humidity set value, the grain storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the temperature and humidity set value at the air outlet B, and the temperature and humidity set value at the air outlet C;

[0055] Step 412, the actual value of the wind pipe temperature and humidity is detected in real time by the first temperature and humidity sensor, the actual value of the grain storage section temperature and humidity is detected in real time by the second temperature and humidity sensor, the actual value of the drying section temperature and humidity is detected in real time by the temperature and humidity sensor group, the actual value of the drying section moisture is detected in real time by the moisture sensor, the actual value of the temperature and humidity at the air outlet B is detected in real time by the third temperature and humidity sensor, and the actual value of the temperature and humidity at the air outlet C is detected in real time by the fourth temperature and humidity sensor;

[0056] Step 414, when the actual value of the air duct temperature and humidity reaches the air duct temperature and humidity setting value, the actual value of the storage section temperature and humidity reaches the storage section temperature and humidity setting value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity setting value, the actual value of the drying section moisture reaches the drying section moisture setting value, the actual value of the temperature and humidity at the tuyere B reaches the temperature and humidity setting value at the tuyere B, and the actual value of the temperature and humidity at the tuyere C reaches the temperature and humidity setting value at the tuyere C, the control drying heating device stops drying the grain in the storage section and the drying section, and the control grain conveying device discharges the grain.

[0057] The control method of the multi-parameter grain drying section multi-physical field simulation test device provided by the application can detect the air duct temperature and humidity in the hot air duct of the drying heating device through the first temperature and humidity sensor, detect the temperature and humidity in the storage section of the grain conveying device through the second temperature and humidity sensor, detect the temperature and humidity in the drying section of the grain conveying device through the temperature and humidity sensor group, detect the moisture value at the output end of the drying section through the moisture sensor, that is, obtain the moisture content of the dried grain, and detect the temperature and humidity at the tuyere B and the tuyere C on the drying section through the third temperature and humidity sensor and the fourth temperature and humidity sensor, that is, obtain the temperature and humidity of the wet hot air discharged from the drying section. The temperature and humidity value in the drying section environment can be actively detected, and the technical blank of not actively detecting the temperature and humidity parameter in the drying section in the prior art is made up. Further, the influence of the grain drying process is not only affected by the temperature and humidity in the hot air duct, the temperature and humidity in the storage section, the moisture content of the dried grain, and the temperature and humidity of the wet hot air discharged from the drying section, but more importantly, the temperature and humidity value in the drying section. The application can measure the temperature and humidity value in the drying section by fixed-point measurement or multi-point data measurement, so that the sensor position in the test device is not fixed, the measurement data error is small, and the dried grain after the test device has high drying quality and drying precision.

[0058] In an embodiment of the application, as shown in Figure 1 and Figure 2As shown, when the drying heating device includes the fan 2, the heater 1 and the hot air duct 3, and the grain conveying device includes the elevator 6, the grain storage section 5, the drying section 7, the air lock 8 and the grain discharge tee joint 9, the control method specifically includes: receiving a grain feeding instruction when the circulating port 11 and the second grain feeding port 13 are in a connected state; controlling the elevator 6, the grain feeding port 12 and the circulating port 11 to be in an open state respectively, and controlling the air lock 8 and the grain discharge port 10 to be in a closed state respectively, to realize a first grain feeding operation; receiving a batch grain drying instruction or a continuous grain drying instruction when the grain feeding amount reaches a preset range; controlling the fan 2, the heater 1, the air lock 8 and the grain feeding port 13 to be in an open state respectively, and controlling the grain feeding port 12 and the grain discharge port 10 to be in a closed state, when the batch grain drying instruction is received; receiving an instruction for setting the air duct temperature and humidity set value, the grain storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value and the air outlet C temperature and humidity set value; detecting the actual value of the air duct temperature and humidity in real time by the first temperature and humidity sensor 701, detecting the actual value of the grain storage section temperature and humidity in real time by the second temperature and humidity sensor 702, detecting the actual value of the drying section temperature and humidity in real time by the temperature and humidity sensor group, detecting the actual value of the drying section moisture in real time by the moisture sensor 714, detecting the actual value of the air outlet B temperature and humidity in real time by the third temperature and humidity sensor 712, and detecting the actual value of the air outlet C temperature and humidity in real time by the fourth temperature and humidity sensor 713; controlling the rotating speed of the fan 2 to adjust the actual value of the air duct temperature and humidity; when the actual value of the air duct temperature and humidity reaches the air duct temperature and humidity set value, the actual value of the grain storage section temperature and humidity reaches the grain storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the air outlet B temperature and humidity reaches the air outlet B temperature and humidity set value, and the actual value of the air outlet C temperature and humidity reaches the air outlet C temperature and humidity set value, controlling the fan 2, the heater 1 and the circulating port 11 to be in a closed state, and controlling the air lock 8 and the grain discharge port 10 to be in an open state, to realize a grain discharge operation;

[0059] When the continuous grain drying instruction is received, the fan 2, the heater 1 and the air lock 8 are controlled to be in the open state, and the inlet 12, the circulation port 11, the outlet 10 and the elevator 6 are controlled to be in the closed state; the instructions of setting the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value and the air outlet C temperature and humidity setting value are received; the actual value of the air pipe temperature and humidity is detected in real time by the first temperature and humidity sensor 701, the actual value of the storage grain section temperature and humidity is detected in real time by the second temperature and humidity sensor 702, the actual value of the drying section temperature and humidity is detected in real time by the temperature and humidity sensor group, the actual value of the drying section moisture is detected in real time by the moisture sensor 714, the actual value of the air outlet B temperature and humidity is detected in real time by the third temperature and humidity sensor 712, and the actual value of the air outlet C temperature and humidity is detected in real time by the fourth temperature and humidity sensor 713; the rotating speed of the fan 2 is controlled to adjust the actual value of the air pipe temperature and humidity; when the actual value of the air pipe temperature and humidity reaches the air pipe temperature and humidity setting value, the actual value of the storage grain section temperature and humidity reaches the storage grain section temperature and humidity setting value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity setting value, the actual value of the drying section moisture reaches the drying section moisture setting value, the actual value of the air outlet B temperature and humidity reaches the air outlet B temperature and humidity setting value, and the actual value of the air outlet C temperature and humidity reaches the air outlet C temperature and humidity setting value, the air lock 8 and the outlet 10 are controlled to be in the open state, and the circulation port 11 is controlled to be in the closed state to realize the first time grain discharge operation; the inlet 12, the circulation port 11 and the elevator 6 are controlled to be in the open state, and the outlet 10 is controlled to be in the closed state to realize the second time grain inlet operation, and the steps after the continuous grain drying instruction is received are executed circularly until the Nth time grain discharge operation is realized.

[0060] In the embodiment, the test device can automatically receive the grain inlet operation instruction, the batch grain drying test instruction and the continuous grain drying test, and the automation level of the whole test device is high, and the drying of the grain can be realized without complex manual operation. Further, in the batch grain drying test and the continuous grain drying test, the user can modify the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value and the air outlet C temperature and humidity setting value, and the grain discharge operation is performed only when the actual values detected by the sensors reach the above setting values, so that the dried grain by the test device has high drying quality and drying precision.

[0061] In an embodiment of the application, before the step of realizing the grain discharge operation, the method further comprises: receiving an instruction of setting the rotating speed frequency setting value of the motor 801; and detecting the rotating speed frequency actual value of the motor 801 in real time until the rotating speed frequency actual value of the motor 801 reaches the rotating speed frequency setting value of the motor 801.

[0062] In the present embodiment, during the batch grain drying test and the continuous grain drying test, the user can modify the rotation frequency setting value of the motor 801, and the grain discharging operation is performed only when the actual value of the rotation frequency of the motor 801 reaches the setting value, so that the control of the grain discharging speed in the grain drying process is realized, and the grain dried by the test device has high drying quality and drying precision.

[0063] In an embodiment of the present application, the control method further comprises: storing the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value, the air outlet C temperature and humidity setting value, and the rotation frequency setting value of the motor; receiving a data query and / or data export instruction; displaying the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value, the air outlet C temperature and humidity setting value, and the rotation frequency setting value of the motor; and / or sending the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value, the air outlet C temperature and humidity setting value, and the rotation frequency setting value of the motor to an external storage device.

[0064] In the present embodiment, the touch screen of the control device can receive a data query and / or data export instruction, that is, the historical data in the control device can be viewed and / or exported to an external storage device. Specifically, the user can input the starting time of the data to be exported on the touch screen, and then click the "data query" button and / or the "data export" button, so as to realize data query and / or data export.

[0065] The external storage device can be a USB flash disk.

[0066] Through continuous testing, the simulation analysis test of multiple physical fields is carried out, and the air pipe temperature and humidity setting value, the storage grain section temperature and humidity setting value, the drying section temperature and humidity setting value, the drying section moisture setting value, the air outlet B temperature and humidity setting value, the air outlet C temperature and humidity setting value, and the rotation frequency setting value of the motor are recorded and stored. These stored data can provide reliable data support for the influence mechanism of multiple physical field coupling on the grain drying process.

[0067] The present application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the control method in any of the above embodiments.

[0068] The computer readable storage medium provided by the application, when the computer program is executed by the processor, the air pipe temperature and humidity in the hot air pipe of the drying and heating device is detected by the first temperature and humidity sensor, the temperature and humidity in the grain storage section of the grain conveying device is detected by the second temperature and humidity sensor, the temperature and humidity in the drying section of the grain conveying device is detected by the temperature and humidity sensor group, the moisture value at the output end of the drying section is detected by the moisture sensor, that is, the moisture value of the dried grain is obtained, the temperature and humidity at the tuyere B and the tuyere C on the drying section are detected by the third temperature and humidity sensor and the fourth temperature and humidity sensor respectively, that is, the temperature and humidity of the wet hot air discharged by the drying section are obtained, the temperature and humidity value in the drying section environment can be actively detected, and the technical blank that the temperature and humidity parameter in the drying section is not actively detected in the prior art is made up. Further, the influence of the grain drying process is not only affected by the temperature and humidity in the hot air pipe, the temperature and humidity in the grain storage section, the moisture value of the dried grain, and the temperature and humidity of the wet hot air discharged by the drying section, but more importantly, the temperature and humidity value in the drying section, and the present application can measure the temperature and humidity value in the drying section by fixed point measurement, and can measure the temperature and humidity value in the drying section by multi-point data measurement, so that the sensor position in the test device is not fixed, the measurement data error is small, and the dried grain after the test device has high drying quality and drying precision.

[0069] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-parameter grain drying section multi-physics field simulation test device, comprising: The application discloses a test device for drying and heating grain, which comprises a drying and heating device and a grain conveying device. The first temperature and humidity sensor is arranged in the hot air pipeline of the drying and heating device, the second temperature and humidity sensor is arranged in the grain storage section of the grain conveying device, the temperature and humidity sensor group is arranged in the drying section of the grain conveying device, the output end of the drying section is provided with a moisture sensor, and the third temperature and humidity sensor and the fourth temperature and humidity sensor are arranged at the tuyere B and the tuyere C of the drying section respectively. The first temperature and humidity sensor, the second temperature and humidity sensor, the temperature and humidity sensor group, the moisture sensor, the third temperature and humidity sensor and the fourth temperature and humidity sensor are electrically connected with the control device respectively. The temperature and humidity sensor group comprises a fifth temperature and humidity sensor, a sixth temperature and humidity sensor, a seventh temperature and humidity sensor, an eighth temperature and humidity sensor, a ninth temperature and humidity sensor, a tenth temperature and humidity sensor, an eleventh temperature and humidity sensor, a twelfth temperature and humidity sensor and a thirteenth temperature and humidity sensor. The fifth temperature and humidity sensor, the sixth temperature and humidity sensor and the seventh temperature and humidity sensor are used for detecting the temperature and humidity of the upper part of the drying section in real time, the eighth temperature and humidity sensor, the ninth temperature and humidity sensor and the tenth temperature and humidity sensor are used for detecting the temperature and humidity of the middle part of the drying section in real time, and the eleventh temperature and humidity sensor, the twelfth temperature and humidity sensor and the thirteenth temperature and humidity sensor are used for detecting the temperature and humidity of the lower part of the drying section in real time. The drying and heating device comprises a fan, a heater and a hot air pipeline. The output end of the fan is communicated with the input end of the heater, the output end of the heater is communicated with the input end of the hot air pipeline, and the output end of the hot air pipeline is communicated with the first input end of the drying section. The grain conveying device comprises an elevator, a grain storage section, a drying section, an air lock and a grain discharge tee. The output end of the elevator is communicated with the input end of the grain storage section, the output end of the grain storage section is communicated with the second input end of the drying section, the first output end of the drying section is communicated with the grain discharge tee through the air lock, the first input end and the second input end of the elevator are provided with a first grain inlet and a second grain inlet respectively, the second output end and the third output end of the drying section are provided with the tuyere B and the tuyere C respectively, and the grain discharge tee is provided with a grain outlet and a circulation port.

2. The multi-parameter grain drying section multi-physics field simulation test device according to claim 1, characterized in that, The air lock comprises a motor, and the fan, the heater, the elevator, the motor and the grain discharge tee are electrically connected with the control device.

3. The multi-parameter grain drying section multi-physics simulation test device according to claim 1 or 2, characterized in that, The drying section is detachably connected with the hot air pipeline, the grain storage section and the air lock.

4. The multi-parameter grain drying section multi-physics simulation test device according to claim 1 or 2, characterized in that, The control device is provided with a touch screen. The drying section is provided with a first window, and the first window is marked with a low-limit position line of grain inlet.

5. A control method for controlling the multi-parameter grain drying section multi-physical field simulation test device according to any one of claims 1 to 4, characterized in that, The grain storage section is provided with a second window, and the second window is marked with a high-limit position line of grain inlet. The control method comprises the following steps. receive a grain feeding instruction; the grain conveying device sequentially conveys the grain into the grain storage section and the drying section; receive a drying instruction when the amount of grain reaches a preset range; control the drying heating device to dry the grain in the grain storage section and the drying section; receive instructions for setting the air pipe temperature and humidity set value, the grain storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value, and the air outlet C temperature and humidity set value; real-time detect the actual value of the air pipe temperature and humidity through the first temperature and humidity sensor, the actual value of the grain storage section temperature and humidity through the second temperature and humidity sensor, the actual value of the drying section temperature and humidity through the temperature and humidity sensor group, the actual value of the drying section moisture through the moisture sensor, the actual value of the air outlet B temperature and humidity through the third temperature and humidity sensor, and the actual value of the air outlet C temperature and humidity through the fourth temperature and humidity sensor; control the drying heating device to stop drying the grain in the grain storage section and the drying section when the actual value of the air pipe temperature and humidity reaches the air pipe temperature and humidity set value, the actual value of the grain storage section temperature and humidity reaches the grain storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the air outlet B temperature and humidity reaches the air outlet B temperature and humidity set value, and the actual value of the air outlet C temperature and humidity reaches the air outlet C temperature and humidity set value; and control the grain conveying device to discharge the grain; when the drying heating device includes a fan, a heater, and a hot air pipeline, and the grain conveying device includes an elevator, a grain storage section, a drying section, an air lock, and a grain discharge three-way valve, the control method specifically includes: receive a grain feeding instruction when the circulation port and the second grain inlet port are in a connected state; respectively control the elevator, the first grain inlet port, and the circulation port to be in an open state, and respectively control the air lock and the grain outlet port to be in a closed state to realize the first grain feeding operation; receive a batch grain drying instruction or a continuous grain drying instruction when the amount of grain reaches a preset range; respectively control the fan, the heater, the air lock, and the second grain inlet port to be in an open state, and control the first grain inlet port and the grain outlet port to be in a closed state when the batch grain drying instruction is received; receive instructions for setting the air pipe temperature and humidity set value, the grain storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value, and the air outlet C temperature and humidity set value; real-time detect the actual value of the air pipe temperature and humidity through the first temperature and humidity sensor, the actual value of the grain storage section temperature and humidity through the second temperature and humidity sensor, the actual value of the drying section temperature and humidity through the temperature and humidity sensor group, the actual value of the drying section moisture through the moisture sensor, the actual value of the air outlet B temperature and humidity through the third temperature and humidity sensor, and the actual value of the air outlet C temperature and humidity through the fourth temperature and humidity sensor; control the speed of the fan to adjust the actual value of the air pipe temperature and humidity; when the actual value of the air duct temperature and humidity reaches the air duct temperature and humidity set value, the actual value of the storage section temperature and humidity reaches the storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the air outlet B temperature and humidity reaches the air outlet B temperature and humidity set value, and the actual value of the air outlet C temperature and humidity reaches the air outlet C temperature and humidity set value, the fan, the heater and the circulating port are controlled to be in the closed state, and the air lock and the grain outlet are controlled to be in the open state to realize the grain discharging operation; and when the continuous grain drying instruction is received, the fan, the heater and the air lock are controlled to be in the open state, and the first grain inlet, the circulating port, the grain outlet and the elevator are controlled to be in the closed state; receiving an instruction for setting the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value and the air outlet C temperature and humidity set value; the actual value of the air duct temperature and humidity is detected in real time by the first temperature and humidity sensor, the actual value of the storage section temperature and humidity is detected in real time by the second temperature and humidity sensor, the actual value of the drying section temperature and humidity is detected in real time by the temperature and humidity sensor group, the actual value of the drying section moisture is detected in real time by the moisture sensor, the actual value of the air outlet B temperature and humidity is detected in real time by the third temperature and humidity sensor, and the actual value of the air outlet C temperature and humidity is detected in real time by the fourth temperature and humidity sensor; the speed of the fan is controlled to adjust the actual value of the air duct temperature and humidity; when the actual value of the air duct temperature and humidity reaches the air duct temperature and humidity set value, the actual value of the storage section temperature and humidity reaches the storage section temperature and humidity set value, the actual value of the drying section temperature and humidity reaches the drying section temperature and humidity set value, the actual value of the drying section moisture reaches the drying section moisture set value, the actual value of the air outlet B temperature and humidity reaches the air outlet B temperature and humidity set value, and the actual value of the air outlet C temperature and humidity reaches the air outlet C temperature and humidity set value, the air lock and the grain outlet are controlled to be in the open state, and the circulating port is controlled to be in the closed state to realize the first grain discharging operation; the first grain inlet, the circulating port and the elevator are controlled to be in the open state, and the grain outlet is controlled to be in the closed state to realize the second grain feeding operation, and the steps after the continuous grain drying instruction is received are executed in a loop until the Nth grain discharging operation is realized.

6. The control method according to claim 5, characterized by Before the step of realizing the grain discharging operation, further comprising: receiving an instruction for setting the motor speed frequency set value; detecting the actual value of the motor speed frequency in real time until the actual value of the motor speed frequency reaches the motor speed frequency set value.

7. The control method according to claim 6, characterized by Further comprising: storing the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value, the air outlet C temperature and humidity set value, and the motor speed frequency set value; receiving an instruction for data query and / or data export; displaying the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value, the air outlet C temperature and humidity set value, and the motor rotating speed frequency set value; and / or sending the air duct temperature and humidity set value, the storage section temperature and humidity set value, the drying section temperature and humidity set value, the drying section moisture set value, the air outlet B temperature and humidity set value, the air outlet C temperature and humidity set value, and the motor rotating speed frequency set value to an external storage device.

8. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program, when executed by a processor, implements the steps of the control method according to any one of claims 5 to 7.

Images