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How does the Biomass Pellet Hot Air Furnace's CNC system accurately control temperature and air volume?

Publish Time: 2024-10-16
The Biomass Pellet Hot Air Furnace's CNC system uses a series of highly integrated technical means to achieve accurate control of temperature and air volume.

1. Sensors collect real-time data

The CNC system first relies on various high-precision sensors to collect the operating data of the hot air furnace. The main sensors include:

Temperature sensor: used to measure the temperature of key locations such as the furnace, combustion chamber and air outlet. Commonly used temperature sensors are thermocouples and thermal resistors.

Air volume sensor: used to measure the air volume of the air supply system, such as differential pressure sensors, ultrasonic anemometers, etc.

Pellet fuel sensor: monitors the inventory and combustion status of pellet fuel in the fuel bin, such as laser level meters and vibration sensors.

2. Data transmission and processing

The data collected by the sensor is transmitted to the main control unit of the CNC system by wire or wireless means. The main control unit is usually a high-performance industrial control computer or PLC (programmable logic controller), which is responsible for processing and analyzing the data.

3. Control system algorithm

The CNC system has built-in advanced control algorithms, such as PID (proportional-integral-differential) control algorithms, which are used to adjust temperature and air volume. These algorithms can calculate the control quantity that needs to be adjusted based on the current temperature and air volume data, and output control signals.

4. Actuator adjustment

According to the output signal of the control algorithm, the CNC system drives the actuator to adjust:

Damper adjustment: The air volume of the air supply system is adjusted through the electric damper or inverter to ensure the accurate supply of the air volume required for combustion.

Fuel supply adjustment: Control the speed and flow of the fuel delivery system to ensure accurate fuel addition and avoid excessive or insufficient fuel.

Combustion control: Adjust the ignition time and combustion intensity of the burner, optimize combustion efficiency, and maintain stable heat output.

5. Feedback and closed-loop control

The CNC system adopts a closed-loop control method, that is, after the actuator is adjusted, the system will continue to monitor the actual temperature and air volume through sensors, compare the actual value with the set value, and adjust the control strategy. This feedback mechanism ensures the accuracy and stability of control.

6. Adaptation and Optimization

Modern CNC systems usually have adaptive capabilities, and can automatically adjust control parameters and optimize control effects according to changes in operating environment and conditions. For example, when the fuel type or ambient temperature changes, the system can automatically adjust the combustion control strategy.

7. Remote Monitoring and Operation

The CNC system also supports remote monitoring and operation. Through the Industrial Internet of Things (IIoT) technology, users can view the operating status of the hot air furnace in real time through the network, adjust parameters remotely, and even perform fault diagnosis and predictive maintenance.

The CNC system of Biomass Pellet Hot Air Furnace accurately collects data through sensors, adopts advanced control algorithms and actuator adjustments, and realizes precise control of temperature and air volume. The closed-loop feedback mechanism, adaptive optimization and remote monitoring functions further improve the stability and flexibility of the system, ensuring the efficient and stable operation of the hot air furnace.
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