How does the CNC system of biomass pellet hot air furnace accurately control the temperature to achieve efficient drying?
Publish Time: 2024-11-27
The CNC system of biomass pellet hot air furnace uses a series of advanced control technologies and strategies to accurately control the temperature and achieve efficient drying.1. Temperature sensing and monitoring systemThe CNC system first relies on the temperature sensing and monitoring system. High-precision temperature sensors are installed inside the hot air furnace, which can monitor the temperature changes in the furnace in real time. Common temperature sensors include thermocouples and thermal resistors, which can provide accurate temperature data.2. Data acquisition and processingThe data collected by the temperature sensor is processed in real time by the data acquisition module in the CNC system. The data acquisition module is responsible for converting the sensor data into digital signals and transmitting them to the central processing unit (CPU). The CPU processes, analyzes and stores the data to ensure that the system can obtain and process temperature information in a timely manner.3. PID control algorithmThe CNC system usually uses the PID (proportional-integral-differential) control algorithm to achieve accurate temperature control. PID control algorithm is a closed-loop control algorithm widely used in industrial control systems. It can automatically adjust the combustion state of the hot air furnace according to the deviation between the current temperature and the set temperature.Proportional (P) control: According to the size of the deviation, adjust the output intensity of the combustion to make the temperature close to the set value as soon as possible.Integral (I) control: Eliminate the system steady-state error to ensure that the temperature can eventually stabilize at the set value.Differential (D) control: Predict the temperature change trend, adjust the output in time, and prevent temperature fluctuations.4. Combustion control strategyThe CNC system achieves precise temperature regulation by controlling the combustion state of the burner. The combustion control strategy includes:Fuel supply control: According to the temperature demand, adjust the supply rate of biomass particles to ensure stable combustion.Air supply control: Adjust the air flow through the variable frequency fan to optimize the combustion efficiency and ensure stable temperature.Ignition and flameout control: The system can automatically control the ignition and flameout process to ensure stable combustion within the set temperature range.5. Multi-level control modeCNC systems usually support multi-level control modes, and can flexibly adjust control strategies according to different drying needs and working conditions. For example:Constant temperature control mode: Keep the temperature constant at the set value, suitable for drying tasks that require precise temperature control.Energy-saving control mode: Optimize combustion efficiency and reduce energy consumption while ensuring the drying effect.Fast heating mode: When it is necessary to quickly reach high temperature, the system can automatically adjust the combustion parameters to increase the heating speed.6. Adaptive and self-learning functionAdvanced CNC systems also have adaptive and self-learning functions, which can automatically adjust control parameters and optimize drying effects based on historical operating data and current working conditions. The system can learn and memorize the best control strategies under different working conditions to ensure high efficiency and stability in long-term operation.7. Remote monitoring and managementCNC systems usually support remote monitoring and management functions. Users can view the operating status and temperature data of the hot air furnace in real time through computers or mobile devices. The remote monitoring system can also receive alarm information, detect and handle abnormal situations in a timely manner, and ensure the safe operation of the system.8. Safety protection mechanismThe CNC system has built-in multiple safety protection mechanisms, such as over-temperature protection, power-off protection, overload protection, etc., to ensure that the system can automatically shut down or adjust operating parameters under abnormal conditions to prevent equipment damage and safety accidents.Through the above series of technologies and strategies, the CNC system of the biomass pellet hot air furnace can achieve precise control of temperature and ensure efficient drying. This not only improves the stability and efficiency of the drying process, but also reduces energy consumption and operating costs, providing strong support for the efficient use of biomass energy.
