CN214198763U - Controller for bulk curing barn of biomass burner - Google Patents
Controller for bulk curing barn of biomass burner Download PDFInfo
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- CN214198763U CN214198763U CN202022596713.2U CN202022596713U CN214198763U CN 214198763 U CN214198763 U CN 214198763U CN 202022596713 U CN202022596713 U CN 202022596713U CN 214198763 U CN214198763 U CN 214198763U
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Abstract
The utility model discloses a controller for a bulk curing barn of a biomass burner, which comprises a detection unit, a central processing unit and a display unit, wherein the detection unit and the display unit are connected with the central processing unit which is also connected with the biomass particle burner, and the controller also comprises a storage unit and a power-down protection unit, the storage unit and the power-down protection unit are both connected with the central processing unit, the power-down protection unit is used for detecting the working voltage of a control circuit, when the working voltage is less than the voltage threshold, sending a power failure alarm signal to the central processing unit, receiving and controlling electrical components in a controller for the bulk curing barn of the biomass burning machine to be powered off in order according to the power failure alarm signal by the central processing unit, and storing the working information into a storage unit in an emergency manner, therefore, the technical problem that the power-down sensitive element in the intensive coal-fired curing barn is damaged due to frequent power failure of the existing intensive coal-fired curing barn is effectively solved.
Description
Technical Field
The utility model relates to an electrical engineering technical field, concretely relates to a controller for biomass burning machine bulk curer.
Background
In recent years, with the popularization and application of the intensive coal-fired curing barn, the overall level of China in the field of tobacco curing is remarkably improved, in the application scene of the intensive coal-fired curing barn, frequent power-off is 'just needed', power-off of equipment after shutdown is achieved, power-off of the equipment through an emergency button is sporadic, and control is not achieved. With the function of the intensive coal-fired curing barn becoming more and more powerful, the intensive coal-fired curing barn has a plurality of power-down sensitive elements, and frequent power-off strikes the elements catastrophically, so that how to solve the technical problem that the damage of the power-down sensitive elements in the intensive coal-fired curing barn caused by the frequent power-off of the existing intensive coal-fired curing barn becomes urgent to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a controller for biomass burning machine bulk curer for solve the technical problem that the power down sensing element in the bulk curer that current bulk curer frequently cuts off the power supply and leads to damages.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a controller for biomass burning machine bulk curer, including the detecting element, central processing unit and display element, the detecting element, the display element all is connected with central processing unit, central processing unit still is connected with biomass particle combustor, still include memory cell and power down protection unit, memory cell and power down protection unit all are connected with central processing unit, power down protection unit is used for detecting the operating voltage of controller, and when operating voltage is less than the voltage threshold, send and fall electric alarm signal for central processing unit, central processing unit receives and puts down the electricity according to the electrical components in the alarm signal control controller of falling the electricity in order, and with the urgent save of work information in the memory cell.
Preferably, the power down protection unit comprises a first resistor, a second resistor, a diode and an optical coupling relay, the first end of the first resistor is connected with the central processing unit, the second end of the first resistor is respectively connected with the cathode of the diode, the first end of the second resistor and the first end of the optical coupling relay, the anode of the diode and the second end of the second resistor are both connected with the second end of the optical coupling relay, the third end of the optical coupling relay is grounded, and the fourth end of the optical coupling relay is connected with the power detection IO port of the controller.
Preferably, the detection unit comprises a temperature detection circuit and a humidity detection circuit, the temperature detection circuit and the humidity detection circuit are both connected with the central processing unit and used for sending the temperature signal or the humidity signal acquired by the central processing unit in real time to the central processing unit, and the central processing unit receives the temperature signal or the humidity signal and sends the temperature signal or the humidity signal to the display unit for displaying.
Preferably, the biomass particle combustion system further comprises an RS485 communication unit, the RS485 communication unit is connected with the central processing unit, the central processing unit is communicated with a frequency converter of a fan in the biomass particle combustion machine through the RS485 communication unit, the display unit further comprises an operation interface, a fan control key, a wind speed increasing key and a wind speed reducing key are arranged on the operation interface, the central processing unit is further used for starting or closing the fan when a user selects the fan control key, the central processing unit is further used for increasing the wind speed of the fan by controlling the fan frequency converter when the user selects the wind speed increasing key, and the central processing unit is further used for reducing the wind speed of the fan by controlling the fan frequency converter when the user selects the wind speed reducing key.
Preferably, the central processor is further connected with a smoke exhaust door control end of the biomass particle burner, a feeding mechanism control end and a control end of the ignition part, the display unit is further provided with a smoke exhaust control key, and the central processor is further used for opening or closing or adjusting the smoke exhaust door when a user selects the smoke exhaust control key; the display unit is also provided with a feeding control key, and the central processor is also used for controlling the relay to open or close or adjust the feeding hole when the user selects the feeding control key; the display unit is further provided with an ignition control key, and the central processing unit is further used for controlling the biomass particle burner to ignite or extinguish when a user selects the ignition control key.
Preferably, the detection unit further comprises a voltage detection module, the voltage detection module is connected with the central processing unit, the voltage detection module is used for acquiring the power supply voltage of the controller, comparing the power supply voltage with a preset threshold voltage, when the power supply voltage is greater than the preset threshold voltage, sending a voltage alarm signal to the central processing unit, and the central processing unit receives the voltage alarm signal and stops outputting the signal outwards according to the voltage alarm signal.
Preferably, the system also comprises a remote communication unit, the remote communication unit is connected with the central processing unit, the central processing unit establishes communication with the remote terminal through the remote communication unit, and the remote communication unit comprises one or a combination of any of a GPRS communication module, an NB-IoT communication module and a 3G/4G/5G communication module.
Preferably, the temperature detection circuit and the humidity detection circuit both comprise an acquisition circuit and a comparison circuit, the acquisition circuit is used for acquiring a temperature signal or a humidity signal and inputting the temperature signal or the humidity signal into the comparison circuit, the comparison circuit is used for comparing the temperature signal or the humidity signal with a threshold temperature signal or a threshold humidity signal, when the threshold temperature signal or the threshold humidity signal is exceeded, the comparison circuit sends a temperature alarm signal or a humidity alarm signal to the central processing unit, and the central processing unit is used for receiving the temperature alarm signal or the humidity alarm signal and turning on the fan or turning off the fan or adjusting the wind speed of the fan.
Preferably, the acquisition circuit of the temperature detection circuit is a platinum thermal resistor acquisition circuit, the platinum thermal resistor acquisition circuit adopts a three-wire platinum thermal resistor as a temperature sensor, adopts a balanced bridge method as a conditioning circuit, adopts an adjustable constant current source as a power supply source, and sends the resistance change to a comparison circuit or a central processing unit after converting the resistance change into a voltage signal change and carrying out amplification processing.
Preferably, the controller is an embedded controller, and the external connector of the controller is an aviation plug-in.
The utility model discloses following beneficial effect has:
1. the utility model provides a controller for biomass burning machine bulk curer, through setting up the storage unit and the power fail safe unit of being connected with central processing unit, and through the operating voltage of power fail safe unit detection control ware, and when operating voltage is less than voltage threshold, send and fall electric alarm signal for central processing unit, central processing unit receives and according to the orderly outage of electrical components in the alarm signal control controller that falls, and with work information emergency storage to the storage unit in, thereby improve the life cycle of bulk curer power fail sensitive element, effectively solve the technical problem that the power fail sensitive element in the bulk curer that current bulk curer frequently outage leads to and damages.
2. In the preferred scheme, the temperature measurement adopts PT1000 platinum thermal resistance, and has good linearity, high precision and strong anti-interference capability.
3. In the preferred scheme, the external connecting piece of the controller for the bulk curing barn of the biomass burning machine is an aviation plug-in, so that the error-proofing rate can be improved, and the connection is simple and reliable.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic diagram of a controller for a bulk curing barn of a biomass burner according to the present invention;
fig. 2 is a topology diagram of the power down protection circuit of the present invention;
fig. 3 is a topological diagram of a relay circuit of the power down protection circuit of the present invention;
fig. 4 is an external view of a display unit according to the present invention; in the examples, no description is given
Fig. 5 is a topological diagram of a platinum thermistor signal conditioning circuit according to the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
as shown in fig. 1, the utility model discloses a controller for biomass burning machine bulk curer, including detecting element, central processing unit and display element, detecting element, display element all is connected with central processing unit, central processing unit still is connected with the living beings granule combustor, furthermore, still include the storage unit and fall the electric protection unit, the storage unit and fall the electric protection unit and all be connected with central processing unit, fall the electric protection unit and be used for detecting the operating voltage of controller, and when operating voltage is less than voltage threshold, send and fall electric alarm signal and give central processing unit, central processing unit receives and orderly the outage according to the electrical components in the warning signal control controller that falls, and with work information emergency save to in the storage unit.
As shown in fig. 2, the power down protection unit includes a first resistor RP12, a second resistor R13, a diode DR1, and an optical coupling relay UR1, a first end of the first resistor RP12 is connected to the central processing unit, a second end of the first resistor RP12 is connected to a cathode of the diode DR1, a first end of the second resistor R13, and a first end of the optical coupling relay UR1, an anode of the diode DR1, and a second end of the second resistor R13 are connected to a second end of the optical coupling relay UR1, a third end of the optical coupling relay UR1 is grounded, and a fourth end of the optical coupling relay UR1 is connected to a power detection IO port of the controller. When the 220V alternating current power supply is normal, the voltage is reduced through RP12, a square wave with a period of 20ms is generated at the 4 th pin of the optocoupler relay UR1 after half-wave rectification of the diode DR1, the square wave disappears when the power is cut off, whether the power is cut off is judged, and the current running state data after the power is cut off is stored in the storage unit.
As an alternative to the above solution, as shown in fig. 3, the power down protection unit further includes a first unit and a second unit, where the first unit includes a first capacitor, a resistor CQ1, an optocoupler relay JDQ1, a diode DP4, a light-emitting diode LED4, and a resistor RQ1, where a first end of the first capacitor is connected to a first end of the resistor CQ1, a second end of the resistor CQ1 is connected to a first end of the optocoupler relay JDQ1, a first end of the optocoupler relay JDQ1 is further connected to a second end of the first capacitor, a second end of the optocoupler relay JDQ1 is further connected to a cathode and an anode of the diode DP4, an anode of the diode DP4 is connected to a cathode of the LED4, an anode of the light-emitting diode LED4 is connected to a first end of the resistor RQ1, and a second end of the resistor RQ1 is connected to a cathode of the diode DP 4.
The second unit comprises a second capacitor, a resistor CQ2, an optical coupling relay JDQ3, a diode DP7, a light emitting tube LED3 and a resistor RQ4, wherein the first end of the second capacitor is connected with the first end of the resistor CQ2, the second end of the resistor CQ2 is connected with the first end of the optical coupling relay JDQ3, the first end of the optical coupling relay JDQ3 is further connected with the second end of the second capacitor, the second end of the optical coupling relay JDQ3 is further connected with the cathode and the anode of the diode DP7 respectively, the anode of the diode DP7 is connected with the cathode of the RQ LED3, the anode of the light emitting tube LED3 is connected with the first end of the resistor RQ4, and the second end of the resistor 4 is connected with the cathode of the diode DP 7.
Specifically, the detecting unit includes temperature detection circuit and humidity detection circuit, and temperature detection circuit and humidity detection circuit all are connected with central processing unit for give central processing unit with the temperature signal or the humidity signal transmission of self real-time collection, central processing unit received temperature signal or humidity signal, and with temperature signal or humidity signal transmission show on the display element.
The display unit further comprises an operation interface, a fan control key, a wind speed increasing key and a wind speed reducing key are arranged on the operation interface, the central processing unit is further used for starting or closing the fan when a user selects the fan control key, the central processing unit is further used for increasing the wind speed of the fan by controlling the fan frequency converter when the user selects the wind speed increasing key, and the central processing unit is further used for reducing the wind speed of the fan by controlling the fan frequency converter when the user selects the wind speed reducing key.
Specifically, the central processor is also connected with a smoke exhaust door control end of the biomass particle burner, a feeding mechanism control end and a control end of an ignition part, a smoke exhaust control key is further arranged on the display unit, and the central processor is further used for opening or closing or adjusting the smoke exhaust door when a user selects the smoke exhaust control key; the display unit is also provided with a feeding control key, and the central processor is also used for controlling the relay to open or close or adjust the feeding hole when the user selects the feeding control key; the display unit is also provided with an ignition control key, and the central processing unit is also used for controlling the biomass particle burner to ignite or extinguish when a user selects the ignition control key;
the control ends of the smoke exhaust door, the feeding mechanism and the ignition component are all electrically isolated relay circuits as shown in fig. 3, the weak current control end of the relay circuit is connected with the central processing unit, and the strong current control end of the relay is respectively connected with the smoke exhaust door, the feeding mechanism and the strong current circuit of the ignition component.
The controller is provided with manual change-over switches of control equipment such as an air door and a circulating fan, and once a fault occurs, the manual change-over switches can be switched to continue baking through manual control, so that the baking risk is reduced, and the baking quality is reliably guaranteed.
Specifically, the detection unit still includes voltage detection module, voltage detection module is connected with central processing unit, voltage detection module is used for gathering the mains voltage of controller, and compare mains voltage with predetermined threshold voltage, when mains voltage is greater than predetermined threshold voltage, send the voltage alarm signal of high level for central processing unit, central processing unit receives and stops outwards output signal according to the voltage alarm signal of high level, voltage monitoring function has, real-time supervision controller mains voltage, when mains voltage is too high or low excessively, the controller can be in time cut off external control output signal, with protection controller and external equipment.
The intelligent tobacco mobile phone baking device comprises a remote communication unit, wherein the remote communication unit is connected with a central processing unit, the central processing unit is communicated with a remote terminal through the remote communication unit, the remote communication unit comprises one or a combination of any of a GPRS communication module, an NB-IoT communication module and a 3G/4G/5G communication module, the Internet of things communication module is equipped, and the intelligent tobacco mobile phone APP software can be used for remotely monitoring the baking state.
In addition, in this embodiment, the TTL communication module is further provided, and RS485, TTL and other communication modules are reserved in the system, so that communication with external modules such as an internet of things module and a frequency converter can be realized, and function extension and upgrading of the system become very simple.
The temperature detection circuit and the humidity detection circuit respectively comprise an acquisition circuit and a comparison circuit, the acquisition circuit is used for acquiring a temperature signal or a humidity signal and inputting the temperature signal or the humidity signal to the comparison circuit, the comparison circuit is used for comparing the temperature signal or the humidity signal with a threshold temperature signal or a threshold humidity signal, when the temperature signal or the humidity signal exceeds the threshold temperature signal or the threshold humidity signal, the temperature alarm signal or the humidity alarm signal is sent to the central processing unit, the central processing unit is used for receiving the temperature alarm signal or the humidity alarm signal and turning on the fan or turning off the fan or adjusting the air speed of the fan, and the baking room is compatible with different types of heat supply modes such as coal burning, biomass particles, a heat pump, an alcohol group, electric energy and the like and is automatically controlled.
Specifically, the comparison circuit comprises a comparator and a reference voltage end, wherein a first input end of the comparator is connected with an output end of the collected signal, a second input end of the comparator is connected with the reference voltage end, the reference voltage end is used for outputting a temperature voltage threshold signal or a humidity voltage threshold signal corresponding to a threshold temperature signal or a threshold humidity signal, the collected signal is a temperature voltage signal or a humidity voltage signal to be collected, the collected temperature voltage signal or humidity voltage signal is compared with the temperature voltage threshold signal or the humidity voltage threshold signal through the comparator, when the collected temperature voltage signal is greater than the preset temperature voltage threshold signal or the collected humidity voltage signal is greater than the preset humidity voltage threshold signal, a low level signal is output to a first input end of the central processing unit, and the central processing unit outputs a low level to a control end of the fan according to the level signal, and the control end of the fan turns off the fan at a low level or reduces the wind speed of the fan.
Specifically, the acquisition circuit of the temperature detection circuit is a platinum thermal resistor acquisition circuit, the platinum thermal resistor acquisition circuit adopts a three-wire platinum thermal resistor as a temperature sensor, adopts a balanced bridge method as a conditioning circuit, adopts an adjustable constant current source as a power supply source, and transmits the resistance change to a comparison circuit or a central processing unit after converting the resistance change into a voltage signal change and carrying out amplification processing.
The platinum thermal resistance signal conditioning circuit adopts a balanced bridge method, the power supply mode is an adjustable constant current source, and resistance change is converted into voltage change and is amplified so as to improve the measurement sensitivity. The platinum resistance is connected into a three-wire system, when the resistance value of the platinum resistance changes with the temperature, the voltage at the two ends of the platinum resistance changes correspondingly, and the voltage and the temperature have good linear relation. The amplifier is an integrated circuit with extremely large input impedance, so that the current in a voltage loop is extremely small, and the voltage at two ends of the platinum thermistor can be transmitted through a long lead with almost no loss, thereby eliminating the influence of the resistance of the lead. The output of the amplifier is converted into a corresponding digital signal through an A/D converter. The three-wire system A/D conversion technology of the analog output of the platinum thermal resistor greatly improves the accuracy and the anti-interference performance of the temperature measurement of the platinum resistor, realizes the digital display and the remote transmission of the temperature, and a 10m cable can be connected between the PT1000 probe and the signal conditioning circuit; the temperature measurement error is not more than +/-0.2 ℃ within the temperature range of 0-500 ℃.
As shown in fig. 5, the platinum thermistor signal conditioning circuit specifically includes a resistor RW4, a resistor RW5, a resistor RW6, a resistor RW7, a resistor RW8, a resistor RW9, a resistor RW10, a platinum thermistor PT100, a comparator UW 10, a capacitor CW 10, and a capacitor CW 10, wherein a first end of the platinum thermistor PT100 is connected to a first end of the resistor RW10, a second end of the resistor RW10 is connected to a voltage output terminal Vout 10, and is connected to the first end of the resistor RW10, a second end of the resistor RW10 is connected to a first end of the resistor RW10, a second end of the resistor RW10 is connected to the second end of the platinum thermistor RW 36100, a second end of the resistor RW10 is connected to a negative input terminal of the comparator UW 10, a first end of the resistor RW10, a second end of the resistor RW10 is connected to the second end of the resistor RW10, and a second end of the resistor RW10 are connected to the second end of the comparator UW 10, and a second end of the resistor RW10, and a second end of the comparator RW10, and a second end of the comparator UW 10 are connected to the second end of the resistor RW10, and a second end of the comparator UW 10, and a second end of the comparator RW10, and a comparator RW10 are connected to the second end of the comparator UW 10, and a second end of the comparator, The first end of a resistor RW14 is connected, the second end of the resistor RW14 is respectively connected with the first end of a capacitor CW4 and the first end of a capacitor CW5, the second end of the capacitor CW4 and the second end of the capacitor CW5 are both grounded and are both connected with the first end of a resistor RW13, the second end of the resistor RW13 is respectively connected with the second end of the resistor RW11 and the first end of a resistor RW12, the second end of the resistor RW12 is respectively connected with the second end of a resistor RW8 and the positive input end of a comparator UW4, and the voltage output end Vout1 is communicated with the input end of the controller and used for sending the acquired signal to the controller.
In addition, in this embodiment, temperature detection circuit and humidity detection circuit also can adopt the temperature acquisition chip of the DS18B20 model of outsourcing, utilize temperature sensor to detect roast room temperature, humidity to convert the digital quantity into and supply the system to use, adopt digital temperature and humidity sensor, have that the temperature measurement is accurate, the interference killing feature is strong and performances such as dampproofing waterproof.
Specifically, the controller is an embedded controller, and an external connector of the controller is an aviation plug-in.
Specifically, in this embodiment, the display interface is a 7-inch TFT display screen with a beijing dialect model of DMT80480L070_02T, the color is 65K (65536) color, the 16-bit palette is 5R6G5B, the display size is 154.1mm (width) × 85.9mm (high), the resolution is 800 × 480 pixels, the backlight mode LED, the brightness is 300nit, 64-level brightness adjustment can be performed, the working voltage is 5V, the backlight brightness is 700mA at the maximum, the working humidity is 25 ℃, the serial port baud rate is 115200, the font storage space is 32MB, the full-screen picture storage number (256MB) is 167 frames of FLASH memories, the full-screen picture storage number (1GB) is 745 frames, the memory storage space is 56KB, a 4-wire resistive touch screen is supported, RTC, a buzzer and the like, and a 7-dot color touch screen is used as a man-machine interface.
In the embodiment, in order to fully utilize hardware resources, the central processing unit selects an STM32F103RCT6 single chip microcomputer of ST corporation, has analog peripherals, peripherals independent of a kernel and communication peripherals, combines an ultra-low power consumption (XLP) technology, and is suitable for a series of wide general and low power consumption applications. The 100-pin devices are provided with an ADC with a 12-bit calculation function, support an automatic Capacitive Voltage Divider (CVD) technology, a window watchdog timer (WWDT), Cyclic Redundancy Check (CRC)/memory scanning, Zero Crossing Detection (ZCD) and Peripheral Pin Selection (PPS), are used for improving design flexibility and reducing system cost, an embedded controller is used as a core, a single chip microcomputer of the ADC with the 10-bit calculation function is adopted, fitting following temperature and fire gear control can be achieved, and measurement accuracy is improved.
In this embodiment, the memory unit may be a memory chip of AT24C512, the memory chip is a 512K-bit nonvolatile random access memory, the organization structure is 65536 × 8, the read-write life is 100000 times, the data is stored in power-down for 10 years, the two-wire serial protocol is fast, the bus speed can reach 1MHz, the operation is performed with low power consumption, and various types of data of the whole system are stored.
In addition, in this embodiment, the controller possesses circulating fan open-phase protection function, can in time automatic cutout circulating fan power when taking place the power and lack the looks, needs manual start circulating fan after the three-phase current resumes, safe and reliable.
In addition, in this embodiment, the central processing unit is further connected to the alarm component, and the central processing unit is further configured to control the alarm component to alarm according to the alarm signal when receiving the alarm signal.
In conclusion, the utility model provides a controller for biomass burning machine bulk curer, through setting up the memory cell and the power down protection unit of being connected with central processing unit, and through the operating voltage that power down protection unit detected the controller, and when operating voltage is less than voltage threshold, send and fall electric alarm signal for central processing unit, central processing unit receives and according to falling electric alarm signal control and be used for the orderly outage of electrical components in the controller of biomass burning machine bulk curer, and with work information urgent save in the memory cell, thereby improve the life cycle of bulk coal type curer power down sensing element, effectively solve the technical problem that the power down sensing element in the bulk coal type curer that current bulk coal type curer frequent outage leads to damages.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a controller for biomass burning machine bulk curer, includes detecting element, central processing unit and display element, detecting element, display element all are connected with central processing unit, central processing unit still is connected with biomass particle combustor, its characterized in that still includes memory cell and power fail safeguard unit, memory cell and power fail safeguard unit all with central processing unit connects, power fail safeguard unit is used for detecting the operating voltage of controller, and work as when operating voltage is less than the voltage threshold, send and fall electric alarm signal and give central processing unit, central processing unit receives and according to power fail alarm signal control electrical components in the controller are in order to descend the electricity to with work information urgent save in the memory cell.
2. The controller for the biomass burner intensive curing barn according to claim 1, wherein the power-down protection unit comprises a first resistor, a second resistor, a diode and an optical coupling relay, a first end of the first resistor is connected with the central processing unit, a second end of the first resistor is connected with a cathode of the diode, a first end of the second resistor and a first end of the optical coupling relay respectively, an anode of the diode and a second end of the second resistor are connected with a second end of the optical coupling relay, a third end of the optical coupling relay is grounded, and a fourth end of the optical coupling relay is connected with a power detection IO port of the controller.
3. The controller for the biomass burner intensive curing barn according to claim 2, wherein the detection unit comprises a temperature detection circuit and a humidity detection circuit, the temperature detection circuit and the humidity detection circuit are both connected with the central processing unit and used for sending a temperature signal or a humidity signal acquired in real time to the central processing unit, and the central processing unit receives the temperature signal or the humidity signal and sends the temperature signal or the humidity signal to the display unit for display.
4. The controller for the biomass-fired burner bulk curer of claim 3, further comprising an RS485 communication unit, the RS485 communication unit is connected with the central processing unit, the central processing unit is communicated with a frequency converter of a fan in the biomass particle combustor through the RS485 communication unit, the display unit also comprises an operation interface, the operation interface is provided with a fan control key, a wind speed increasing key and a wind speed reducing key, the central processor is also used for turning on or off the fan when the fan control key is selected by a user, the central processor is also used for increasing the wind speed of the fan by controlling the fan frequency converter when the wind speed plus key is selected by a user, the central processor is also used for reducing the wind speed of the fan by controlling the fan frequency converter when the wind speed reduction key is selected by a user.
5. The controller for the biomass burner bulk curer according to claim 4, wherein the central processor is further connected to a control end of a smoke exhaust damper of the biomass pellet burner, a control end of a feeding mechanism and a control end of an ignition part, the display unit is further provided with a smoke exhaust control key, and the central processor is further configured to open or close or adjust the smoke exhaust damper when a user selects the smoke exhaust control key; the display unit is also provided with a feeding control key, and the central processing unit is also used for controlling the relay to open or close or adjust the feeding hole when the user selects the feeding control key; the display unit is further provided with an ignition control key, and the central processing unit is further used for controlling the biomass particle burner to ignite or extinguish when a user selects the ignition control key.
6. The controller for the biomass burner bulk curer of claim 5, wherein the detection unit further comprises a voltage detection module, the voltage detection module is connected with the central processing unit, the voltage detection module is used for collecting a power supply voltage of the controller, comparing the power supply voltage with a preset threshold voltage, and when the power supply voltage is greater than the preset threshold voltage, sending a voltage alarm signal to the central processing unit, and the central processing unit receives the voltage alarm signal and stops outputting signals according to the voltage alarm signal.
7. The controller for the biomass-fired machine bulk curing barn according to claim 6, further comprising a remote communication unit, wherein the remote communication unit is connected with the central processing unit, the central processing unit establishes communication with a remote terminal through the remote communication unit, and the remote communication unit comprises one or a combination of any of a GPRS communication module, an NB-IoT communication module and a 3G/4G/5G communication module.
8. The controller for the biomass burner intensive curing barn according to claim 7, wherein the temperature detection circuit and the humidity detection circuit each comprise an acquisition circuit and a comparison circuit, the acquisition circuit is used for acquiring the temperature signal or the humidity signal and inputting the temperature signal or the humidity signal to the comparison circuit, the comparison circuit is used for comparing the temperature signal or the humidity signal with a threshold temperature signal or a threshold humidity signal, when the threshold temperature signal or the threshold humidity signal is exceeded, a temperature alarm signal or a humidity alarm signal is sent to the central processing unit, and the central processing unit is used for receiving and turning on the fan or turning off the fan or adjusting the wind speed of the fan according to the temperature alarm signal or the humidity alarm signal.
9. The controller for the biomass burner intensive curing barn according to claim 8, wherein the acquisition circuit of the temperature detection circuit is a platinum thermistor acquisition circuit, the platinum thermistor acquisition circuit adopts a three-wire platinum thermistor as a temperature sensor, adopts a balanced bridge method as a conditioning circuit, adopts an adjustable constant current source as a power supply, and sends the resistance change to the comparison circuit or the central processing unit after converting the resistance change into a voltage signal change and amplifying the voltage signal change.
10. The controller for a biomass-fired burner curing bulk curing barn according to claim 8, wherein the controller is an embedded controller and the external connections of the controller are aircraft inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022596713.2U CN214198763U (en) | 2020-11-11 | 2020-11-11 | Controller for bulk curing barn of biomass burner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022596713.2U CN214198763U (en) | 2020-11-11 | 2020-11-11 | Controller for bulk curing barn of biomass burner |
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| CN214198763U true CN214198763U (en) | 2021-09-14 |
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