CN214509319U - Automatic frequency conversion bulk curer control device - Google Patents
Automatic frequency conversion bulk curer control device Download PDFInfo
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- CN214509319U CN214509319U CN202120322334.6U CN202120322334U CN214509319U CN 214509319 U CN214509319 U CN 214509319U CN 202120322334 U CN202120322334 U CN 202120322334U CN 214509319 U CN214509319 U CN 214509319U
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- fan
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 33
- 241000208125 Nicotiana Species 0.000 claims abstract description 68
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 68
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000009941 weaving Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 17
- 239000000523 sample Substances 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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Abstract
The utility model discloses an automatic frequency conversion bulk curer control device, which relates to the technical field of flue-cured tobacco baking control equipment, and comprises a host machine component 2, a frequency conversion fan component 4, an air blower component 6, a cold air door component 8 and a temperature and humidity sensor component 9; the host machine component 2 respectively controls the variable frequency fan component 4, the blower component 6 and the cold air door component 8 and is connected with the temperature and humidity sensor component 9; the bulk curing barn also comprises a tobacco leaf weighing component 1, wherein the tobacco leaf weighing component 1 comprises a holding frame and more than two sensors; the sensor is arranged on a tobacco hanging frame of the bulk curing barn, and a signal wire of the sensor is connected with the host machine component 2; the supporting frame is arranged on the sensor, and a tobacco rod or a tobacco clamp for weaving/clamping tobacco leaves is arranged on the supporting frame. The method has the characteristics of improving the tobacco leaf baking quality, reducing energy consumption, being simple and convenient to operate and the like, and is suitable for intensive baking of the flue-cured tobaccos in different latitudes.
Description
Technical Field
The utility model relates to a flue-cured tobacco toasts controlgear technical field, especially an automatic frequency conversion bulk curer controlling means.
Background
The bulk curing barn is comprehensively popularized and applied in tobacco leaf curing, forced ventilation and hot air circulation are realized in the bulk curing barn through a circulating fan, the power of the circulating fan used at present is generally 2.2kW, and an 4/6 polar fan is adopted. The existing bulk curing barn control equipment controls the circulating fan at high and low speeds only in a manual mode, has low efficiency and high energy consumption, and is difficult to ensure the baking quality. In recent years, in order to realize energy conservation and emission reduction in baking, accurate baking, quality improvement and efficiency improvement, and cost reduction, a frequency converter is applied to a circulating fan, but the currently used bulk curing barn control equipment generally only controls temperature and humidity, and does not perform linkage control on environmental conditions such as temperature, humidity, wind speed and time in bulk baking. Because the environmental conditions such as temperature, humidity and wind speed required by the baking process are not organically related to the frequency conversion, and different frequencies are artificially set according to different baking stages to control the circulating fan, the operation and the use of the circulating fan are inconvenient, and the application effect is not obvious.
The bulk curing barn control system and the special flue-cured tobacco frequency converter disclosed in the Chinese patent (the patent application number is 201520361531.3) comprise a bulk curing barn controller, a special flue-cured tobacco frequency converter and an axial flow fan; the bulk curing barn controller is connected with a temperature sensor and a humidity sensor which are arranged at set positions of the bulk curing barn in an input sampling manner, and is connected with a combustion fan and an air door in an output control manner; the bulk curing barn controller is also connected with a special flue-cured tobacco frequency converter through a serial communication interface, and the special flue-cured tobacco frequency converter is connected with the axial flow fan in a control way.
Another chinese patent (patent application No. 201910033810.X) "take intensive roast room controller of thing networking facilities and fan frequency conversion function" that discloses, including the main control unit, the main control unit passes through electromagnetic compatibility EMC and links to each other with the converter, and the converter links to each other with circulating fan, the main control unit passes through fan drive and high-speed low-speed switch and links to each other with circulating fan, the main control unit passes through sensor input and links to each other with temperature and humidity sensor, the main control unit passes through output unit and electric auxiliary heating unit, heat pump set, cold wind door, display element and links to each other, the main control unit passes through communication unit and network deployment unit and links to each other, the network deployment unit links to each other with communication module, the main control unit passes through current detection, voltage detection and output unit and links to each other with stand-by power supply unit.
Disclosure of Invention
The utility model aims to solve the technical problem that a baking control device which can improve the baking quality of tobacco leaves, can reduce energy consumption and is simple and convenient to operate is provided.
In order to achieve the purpose, the technical scheme adopted by the utility model is to design an automatic frequency conversion bulk curer control device, which comprises a host machine component 2, a frequency conversion fan component 4, an air blower component 6, a cold air door component 8 and a temperature and humidity sensor component 9; the host machine component 2 respectively controls the variable frequency fan component 4, the blower component 6 and the cold air door component 8 and is connected with the temperature and humidity sensor component 9; the temperature and humidity sensor assembly 9 is arranged in the bulk curing barn, and the variable frequency fan assembly 4, the blower assembly 6 and the cold air door assembly 8 are all communicated with the bulk curing barn; the bulk curing barn also comprises a tobacco leaf weighing component 1, wherein the tobacco leaf weighing component 1 comprises a holding frame and more than two sensors; the sensor is arranged on a tobacco hanging frame of the bulk curing barn, and a signal wire of the sensor is connected with the host machine component 2; the supporting frame is arranged on the sensor, and a tobacco rod or a tobacco clamp for weaving/clamping tobacco leaves is arranged on the supporting frame.
The host machine component 2 comprises a display screen 3, a control panel 5 and a power panel 7, wherein the control panel 5 is respectively connected with the display screen 3 and the power panel 7; the control panel 5 comprises a singlechip, a memory, a clock circuit, an air inlet door control module, an air blower control module and a variable frequency communication module which have the functions of data acquisition, processing, communication and output control of temperature and humidity and tobacco weight, and the memory, the clock circuit, the air inlet door control module, the air blower control module and the variable frequency communication module are all connected with the singlechip; the display screen 3 is connected with the singlechip and is a color touch screen which can display various baking information and set various baking parameters to realize human-computer interaction; the power panel 7 comprises an air inlet door control circuit and an air blower control circuit, and the air inlet door control circuit and the air blower control circuit are respectively connected with a cold air door assembly 8 and an air blower assembly 6.
The frequency conversion fan assembly 4 comprises a frequency converter and a frequency conversion fan, and the frequency converter is respectively connected with the single chip microcomputer and the frequency conversion fan in the control panel 5.
The variable frequency fan is a variable frequency fan with stepless regulation of air quantity and air pressure.
The temperature and humidity sensor assembly 9 comprises more than two groups of temperature and humidity sensors, and the temperature and humidity sensors comprise a dry bulb probe, a wet bulb probe and a kettle; the dry ball probe and the wet ball probe are respectively clamped on a support of the kettle, a temperature sensing head of the wet ball probe is wrapped completely by absorbent gauze and then placed in the kettle filled with clear water, and the distance between the temperature sensing head and the water surface is kept to be 10-15 mm.
The single chip microcomputer is selected from STM32F103RCT6 single chip microcomputers of ST company, the core of the single chip microcomputer adopts 32-bit CPU of ARM company, the highest 72MHz working frequency, a flash memory program memory containing 128k bytes, an SRAM of 64k bytes, a 32kHz oscillator with a calibration function, a low-power-consumption working mode for providing sleep, stop and standby, DMA controllers of 7 channels, 80 fast I/O ports, 7 timers and 9 communication interfaces.
The utility model discloses an automatic frequency conversion bulk curer controlling means adopts temperature and humidity sensor to gather the actual dry bulb temperature and wet bulb temperature in the bulk curer tobacco-loading chamber, compares with the built-in target value of flash memory program memory through the host computer, and then adjusts the opening and closing degree of the air inlet door (namely: the cold air door component, the same below) and the air blower switch, realizes the control of the temperature and humidity in the bulk curer tobacco-loading chamber; meanwhile, a tobacco leaf weighing component is adopted to collect the weight of tobacco leaves on a tobacco rod or a tobacco clamp in real time in the baking process (the weight of the tobacco leaves collected in the baking process is the initial weight), the weight of the tobacco leaves collected in real time along with the baking process is compared with the initial weight, the water loss rate of the tobacco leaves is calculated, the water loss rate is compared with the water loss rate suitable for each baking stage of the tobacco leaves of different varieties and different parts stored in a host or a target value set by a user, the frequency is automatically changed through a frequency change communication module after calculation according to the comparison result, the rotating speed of a circulating frequency change fan is adjusted to achieve the suitable air speed and air pressure, and meanwhile, the temperature and the humidity are kept stable by adjusting the opening and closing degree of an air inlet door and an air blower switch, so that the water loss rate of the tobacco leaves is controlled by adjusting the air speed and the air pressure of ventilation under the condition of stable temperature and humidity, and the total water loss amount which is required to be achieved by each baking stage or a key temperature point is further realized, can accurate control each stage time or key temperature point steady temperature time, make the tobacco leaf contain the material conversion abundant, therefore, use the utility model discloses an automatic frequency conversion bulk curer controlling means can carry out coordinated control to environmental conditions such as temperature, humidity, wind speed and the time in bulk curer, so can obviously improve the quality that the tobacco leaf was toasted, can reduce its energy consumption again to a great extent, and automatic frequency conversion technology's application simultaneously for its operation is more simple and convenient.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
In the figure:
the tobacco leaf weighing device comprises a tobacco leaf weighing component 1, a host machine component 2, a display screen 3, a variable frequency fan component 4, a control board 5, an air blower component 6, a power board 7, a cold air door component 8 and a temperature and humidity sensor component 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. The following description is given by way of example, but the scope of the invention should not be limited thereto.
The automatic frequency conversion bulk curing barn control device of the embodiment is composed of more than two bulk curing barns, a tobacco leaf weighing component 1, a host machine component 2, a frequency conversion fan component 4, an air blower component 6, a cold air door component 8 and a temperature and humidity sensor component 9. The bulk curing barn comprises more than two curing barns.
The tobacco leaf weighing component 1 is arranged in each bulk curing barn and consists of a holding frame and two (two or three or four or more, in the example, two) sensors; the two sensors are respectively arranged on two sides of the tobacco hanging frame of the bulk curing barn, and signal wires of the two sensors are connected with the host machine component 2; two ends of the supporting frame are respectively arranged on the two sensors, and a tobacco rod or a tobacco clamp for weaving/clamping tobacco leaves is arranged on the supporting frame.
The host machine component 2 is composed of a display screen 3, a control panel 5 and a power panel 7.
The control panel 5 is composed of a single chip microcomputer, a storage device, a clock circuit, an air inlet door control module, an air blower control module and a variable frequency communication module, wherein the single chip microcomputer, the storage device, the clock circuit, the air inlet door control module, the air blower control module and the variable frequency communication module are all connected with the data acquisition, processing, communication and output control functions of temperature and humidity and tobacco leaf weight.
The single chip microcomputer of the embodiment selects STM32F103RCT6 single chip microcomputer of ST company, the kernel of the single chip microcomputer adopts 32-bit CPU of ARM company, the highest 72MHz working frequency, a flash memory program memory containing 128k bytes, an SRAM of 64k bytes, a 32kHz oscillator with calibration function, a low power consumption working mode for providing sleep, stop and standby, a DMA controller of 7 channels, 80 fast I/O ports, 7 timers and 9 communication interfaces.
The display screen 3 is a color touch screen which can display various baking information and set various baking parameters to realize human-computer interaction.
The power panel 7 is composed of an air inlet door control circuit and an air blower control circuit, and the air inlet door control circuit and the air blower control circuit are respectively connected with a cold air door assembly 8 and an air blower assembly 6.
The variable frequency fan component 4 is arranged in each bulk curing barn, and adopts a variable frequency fan with stepless adjustable air volume and air pressure, the variable frequency fan adopted in the embodiment is a GKF (KY) series special high-temperature axial flow fan for flue-cured tobacco produced by Fujian Hua motor Co., Ltd, wherein the motor is a 4-pole three-phase variable frequency speed regulating motor with the rated voltage of 380V, and the variable frequency speed regulating motor can continuously regulate the speed within the range of 20 Hz-50 Hz.
The blower assembly 6 comprises blowers arranged in each bulk curing barn, and adopts a KF flue-cured tobacco special centrifugal blower provided by Taizhou high-speed electrical appliances Co., Ltd, the rated power is 150W, the wind pressure is 490Pa, and the wind quantity is more than or equal to 150m3/h。
The temperature and humidity sensor assembly 9 is arranged in each bulk curing barn and consists of two groups (two groups or three groups or four groups or more groups, two groups are adopted in the embodiment) of temperature and humidity sensors, the temperature and humidity sensors of the embodiment adopt DS18B20 digital sensors, the temperature measuring range is 0-85 ℃, the resolution is +/-0.1 ℃, and the measuring precision is +/-0.5 ℃. The temperature and humidity sensor consists of a dry bulb probe, a wet bulb probe and a kettle. The dry-bulb probe and the wet-bulb probe of each group are respectively clamped on a bracket of the kettle, wherein: the temperature sensing head of the wet bulb probe is wrapped completely by absorbent gauze and then placed in a kettle filled with clear water, and the distance between the temperature sensing head and the water surface is kept to be 10-15 mm.
The cold air door assembly 8 comprises cold air doors installed in each bulk curing barn.
The host machine component 2 respectively controls the variable frequency fan component 4, the air blower component 6 and the cold air door component 8 and is connected with the temperature and humidity sensor component 9.
In the using process, the single chip in the host machine component 2 executes the temperature rise speed of each time period according to the time information transmitted by the clock circuit, meanwhile, the temperature and humidity parameters set by a user are called from the memory to be compared with the temperature and humidity in the actual curing barn, and the action of the cold air door component 8 and the action of the blower component 6 are controlled according to the comparison result. Meanwhile, the single chip in the main machine component 2 calculates the rotating speed information of each stage according to the tobacco leaf curing process curve in a fuzzy mode and transmits the rotating speed information to the variable frequency communication module so as to control the rotating speed of the circulating variable frequency fan (namely, the variable frequency fan in the variable frequency fan component 4, the same below). And the frequency conversion fan of circulation usefulness is rotatory according to the rotational speed in each stage, makes the continuous circulation of hot-air in the roast room, and after cold wind door subassembly 8 opened, roast room outside dry cold air is inhaled in the roast room, and damp and hot air is discharged from the hydrofuge window, also can make the interior temperature of roast room reduce when hydrofuge, and the singlechip detects sending out the instruction after the temperature drops and makes air-blower subassembly 6 work this moment, lasts for roast room heat supply in order to maintain roast room temperature unchangeable.
When in use, when the tobacco leaves to be baked are loaded into the bulk curing barn, 1 rod (clamp) or a plurality of rods (clamps) of representative tobacco leaves are selected to be loaded on the holding frame of the tobacco leaf weighing component 1, after the tobacco leaves to be baked are loaded into the bulk curing barn, the host component 2 is started, the initial weight of the tobacco leaves loaded on the holding frame of the tobacco leaf weighing component 1 is determined in the display screen 3, and simultaneously, according to the variety, the position, the maturity and other conditions of the tobacco leaves to be baked, the baking parameters stored in the host component 2 are selected through the display screen 3, including the baking time, the dry bulb temperature, the wet bulb temperature and the target value of the water loss rate of each baking stage (which are pre-arranged in a flash memory program memory by an equipment manufacturer), or a user adjusts according to the self-arranged baking parameters, the equipment automatically and properly adjusts each executing mechanism according to the deviation degree of an actual measuring value and the target value in the baking process, and calculating a target water loss rate in unit time according to the stage time and the target value of the stage water loss rate in the tobacco leaf baking process, when the water loss rate in unit time measured in real time is smaller than the target water loss rate in unit time, under the condition that the dry bulb temperature and the wet bulb temperature are kept stable, improving the frequency of alternating current through automatic frequency conversion, so that the rotating speed of a circulating variable frequency fan is increased, the water loss rate in unit time is improved through increasing ventilation volume, and when the water loss rate in unit time measured in real time is larger than the target water loss rate in unit time, under the condition that the dry bulb temperature and the wet bulb temperature are kept stable, reducing the frequency of the alternating current through automatic frequency conversion, so that the rotating speed of the circulating variable frequency fan is reduced, and the water loss rate in unit time is reduced through reducing the ventilation volume. Therefore, the method ensures the equilibrium of water loss of the tobacco leaves in the tobacco leaf baking process, is beneficial to the smooth proceeding of yellowing, drying and substance conversion of the tobacco leaf baking, improves the baking quality of the tobacco leaves, and is beneficial to preventing the tobacco leaves from being baked due to too slow and too late water loss. The blower assembly 6 can supply oxygen to the hearth according to the dry bulb temperature of the smoke chamber; the cold air door assembly 8 can automatically adjust the opening and closing degree according to the temperature of the wet bulb of the smoke chamber.
The utility model discloses an automatic frequency conversion bulk curer controlling means is applicable to the intensive stoving in flue-cured tobacco in different latitude areas.
Claims (6)
1. An automatic frequency conversion bulk curer control device comprises a host machine component (2), a frequency conversion fan component (4), an air blower component (6), a cold air door component (8) and a temperature and humidity sensor component (9); the host machine component (2) respectively controls the variable frequency fan component (4), the blower component (6) and the cold air door component (8) and is connected with the temperature and humidity sensor component (9); the temperature and humidity sensor assembly (9) is arranged in the bulk curing barn, and the variable frequency fan assembly (4), the air blower assembly (6) and the cold air door assembly (8) are all communicated with the bulk curing barn; the method is characterized in that: the bulk curing barn also comprises a tobacco leaf weighing component (1); the tobacco leaf weighing component (1) comprises a supporting frame and more than two sensors, and a signal wire of the tobacco leaf weighing component is connected with the main machine component (2); the sensor is arranged on a tobacco hanging frame of the bulk curing barn; the supporting frame is arranged on the sensor, and a tobacco rod or a tobacco clamp for weaving/clamping tobacco leaves is arranged on the supporting frame.
2. The control device for the automatic frequency conversion bulk curer according to claim 1, wherein: the host machine component (2) comprises a display screen (3), a control panel (5) and a power panel (7), wherein the control panel (5) is respectively connected with the display screen (3) and the power panel (7); the control panel (5) comprises a single chip microcomputer, a memory, a clock circuit, an air inlet door control module, an air blower control module and a variable frequency communication module, wherein the single chip microcomputer has the functions of data acquisition, processing, communication and output control of temperature and humidity and tobacco weight, and the memory, the clock circuit, the air inlet door control module, the air blower control module and the variable frequency communication module are all connected with the single chip microcomputer; the display screen (3) is connected with the singlechip and is a color touch screen which can display various baking information and set various baking parameters to realize human-computer interaction; the power panel (7) comprises an air inlet door control circuit and an air blower control circuit, wherein the air inlet door control circuit and the air blower control circuit are respectively connected with a cold air door assembly (8) and an air blower assembly (6).
3. The control device for the automatic frequency conversion bulk curer according to claim 2, wherein: the frequency conversion fan assembly (4) comprises a frequency converter and a frequency conversion fan, wherein the frequency converter is respectively connected with the single chip microcomputer and the frequency conversion fan in the control panel (5).
4. The control device for the automatic frequency conversion bulk curer according to claim 3, wherein: the variable frequency fan is a variable frequency fan with stepless regulation of air quantity and air pressure.
5. The control device for the automatic frequency conversion bulk curer according to claim 4, wherein: the temperature and humidity sensor assembly (9) comprises more than two groups of temperature and humidity sensors, and the temperature and humidity sensors comprise a dry bulb probe, a wet bulb probe and a kettle; the dry ball probe and the wet ball probe are respectively clamped on a support of the kettle, a temperature sensing head of the wet ball probe is wrapped completely by absorbent gauze and then placed in the kettle filled with clear water, and the distance between the temperature sensing head and the water surface is kept to be 10-15 mm.
6. The control device for an automatic frequency conversion bulk curer according to any one of claims 2 to 5, wherein: the single chip microcomputer is selected from STM32F103RCT6 single chip microcomputers of ST company, the core of the single chip microcomputer adopts 32-bit CPU of ARM company, the highest 72MHz working frequency, a flash memory program memory containing 128k bytes, an SRAM of 64k bytes, a 32kHz oscillator with a calibration function, a low-power-consumption working mode for providing sleep, stop and standby, DMA controllers of 7 channels, 80 fast I/O ports, 7 timers and 9 communication interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120322334.6U CN214509319U (en) | 2021-02-03 | 2021-02-03 | Automatic frequency conversion bulk curer control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120322334.6U CN214509319U (en) | 2021-02-03 | 2021-02-03 | Automatic frequency conversion bulk curer control device |
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| Publication Number | Publication Date |
|---|---|
| CN214509319U true CN214509319U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120322334.6U Expired - Fee Related CN214509319U (en) | 2021-02-03 | 2021-02-03 | Automatic frequency conversion bulk curer control device |
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| Country | Link |
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| CN (1) | CN214509319U (en) |
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2021
- 2021-02-03 CN CN202120322334.6U patent/CN214509319U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |