How does the subway electric combined air valve achieve air volume regulation accuracy far exceeding its peers?
Publish Time: 2024-12-31
The subway electric combined air valve is far superior to its peers in air volume regulation accuracy, mainly due to its unique design principle, advanced manufacturing process and intelligent control system.1. High-precision airflow regulation designMulti-blade adjustable structure: The subway electric combined air valve usually adopts a multi-blade structure, and each blade can adjust the angle independently to achieve fine control of the airflow. Compared with the single opening and closing or simple angle adjustment of the traditional air valve, this design can control the air volume more accurately.Blade gap optimization: By optimizing the manufacturing process and installation accuracy of the blades, the gap between the blades is minimized, the airflow leakage is reduced, and the accuracy of air volume regulation is improved.Uniform wind resistance design: The blades inside the air valve are evenly distributed to ensure that the resistance of the airflow is consistent when passing through, avoiding the adjustment error caused by uneven airflow distribution.2. High-precision actuatorElectric actuator: The use of high-precision electric actuator can accurately control the opening angle of the blade, and the minimum adjustment accuracy can reach 0.1°, ensuring that the air valve can adjust the airflow more accurately.Multi-step control technology: The actuator uses a multi-step motor or servo motor, which can achieve precise adjustment of small angles, avoiding the problem of insufficient accuracy of traditional air valves due to excessive adjustment steps.Closed-loop feedback system: Electric actuators are usually equipped with position sensors to form a closed-loop control system, which can monitor and feedback the angle position of the blade in real time to ensure adjustment accuracy and response speed.3. Intelligent control systemPID control algorithm: The control system of the subway electric combined air valve usually adopts the PID (proportional-integral-differential) control algorithm, which can automatically adjust the action of the actuator according to the deviation between the actual air volume and the target air volume, thereby achieving high-precision air volume adjustment.Adaptive adjustment function: The intelligent control system can automatically adjust the opening state of the air valve according to changes in external conditions such as ambient temperature, humidity, and air pressure, ensuring that the air volume always remains near the set value.Remote monitoring and adjustment: Through the integration of intelligent control systems, subway electric combined air valves can achieve remote monitoring and adjustment. Operators can adjust the status of the air valve in real time through the central control system to optimize the air volume distribution.4. High-precision sensor technologyAir volume sensor: Install high-sensitivity air volume sensors before and after the air valve to monitor the actual air volume in real time and feed back the data to the control system to ensure the accuracy of air volume adjustment.Pressure sensor: By installing a pressure sensor, monitor the pressure changes inside the air valve to further optimize the air flow adjustment effect.Temperature and humidity sensor: Combine temperature and humidity sensors to intelligently adjust the air volume to adapt to environmental changes in the subway station.5. Modular and high-precision manufacturing processModular design: The subway electric combined air valve adopts a modular design. Each module can be debugged and optimized independently to ensure the high accuracy of the overall performance.High-precision processing technology: Use CNC machining center (CNC) and precision mold technology to ensure the dimensional accuracy and surface finish of the air valve blades, thereby reducing air flow resistance and improving adjustment accuracy.Material selection and surface treatment: Select high-strength, corrosion-resistant materials (such as stainless steel or aluminum alloy), and perform special surface treatment to reduce friction and wear, ensuring long-term stable operation of the air valve.6. Efficient linkage control systemMultiple air valve collaborative control: In subway stations, multiple electric combined air valves are usually required to work together. Through the central control system, multiple air valves can be linked and adjusted to ensure the uniformity and adjustment accuracy of air distribution in the station.Dynamic balance algorithm: The dynamic balance algorithm is used to adjust the opening of the air valve in real time according to the distribution of personnel in the station and environmental changes, maximizing the energy-saving effect while ensuring the accuracy of air volume adjustment.7. Long-term stability and maintenance optimizationMaintenance-free design: The subway electric combined air valve adopts maintenance-free or low-maintenance design to reduce the impact of daily maintenance on accuracy.Self-diagnosis function: The air valve is equipped with a self-diagnosis function, which can monitor the operating status of the equipment in real time, find abnormalities and alarm in time, and avoid the decrease in accuracy caused by equipment failure.Long-term calibration support: By regularly calibrating the actuator and sensor, ensure that the air valve maintains high-precision adjustment performance in long-term use.The reason why the subway electric combined air valve can achieve air volume adjustment accuracy far exceeding that of its peers is mainly due to its high-precision air flow adjustment design, intelligent control system, advanced actuator and sensor technology, and high-precision manufacturing process. Through multi-faceted technical innovation and optimization, the subway electric combined air valve can not only meet the complex air conditioning needs in subway stations, but also play an important role in energy saving, environmental protection and comfort.
