Dynamic Control System and Control Method Suitable for Ventilation of Fully Buried Sewage Treatment Plant
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Solution Overview
Problem
The ventilation system control of fully buried sewage treatment plants faces challenges with severe coupling interference between different service areas, leading to disorder in airflow organization, odor overflow, accumulation of flammable and explosive gases, or corrosive gas entering the electrical control room.
Innovation Solution
A dynamic control system comprising a real-time dynamic monitoring module and a dynamic control platform that monitors pressure differences and harmful gas concentrations in real-time, adjusts pressure difference set values, and regulates air supplement and exhaust systems to maintain orderly airflow and prevent harmful gas leakage or invasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed ventilation frequency is used in different areas, then ventilation system can operate simply, but coupling interference between different service areas becomes severe and airflow organization becomes disordered
Solution Approach 1:
The patent implements dynamic control of ventilation frequency for air supplement machines and exhaust machines based on real-time pressure difference monitoring. The control system adjusts ventilation parameters dynamically according to actual conditions, transforming the fixed-frequency system into a adaptive system that maintains reliable airflow organization while managing complexity through intelligent control algorithms.
Solution Approach 2:
The patent establishes a feedback control mechanism where pressure difference sensors continuously monitor the pressure state in different areas, and the control system uses this feedback information to adjust the ventilation frequency of air supplement and exhaust machines. This closed-loop feedback ensures that airflow organization remains orderly by preventing harmful gas leakage while coordinating ventilation across different service areas.
2Object-affected harmful factors
If emergency and normal ventilation mode switching is implemented in different areas, then harmful gas can be controlled, but coupling interference increases and airflow organization becomes more disordered
Solution Approach 1:
The control system uses real-time pressure difference feedback from sensors in different areas to intelligently switch between emergency and normal ventilation modes. By coordinating the switching timing and parameters of air supplement and exhaust machines based on this feedback, the system effectively controls harmful gases while maintaining orderly airflow organization across the entire facility.
Solution Approach 2:
The patent merges the control of air supplement machines and exhaust machines into a unified coordination system. Instead of independent mode switching in different areas, the system combines the control of multiple ventilation devices under a single coordinated strategy, reducing coupling interference and ensuring consistent airflow organization while maintaining harmful gas control effectiveness.
3Ease of operation
If uniform ventilation control is applied across all areas, then system operation is simple, but it cannot prevent harmful gas leakage or invasion in specific high-risk areas
Solution Approach 1:
The patent implements local quality control by applying different ventilation strategies to different areas based on their specific requirements. High-risk areas with potential harmful gas generation receive enhanced ventilation control with coordinated air supplement and exhaust machine operation, while other areas use standard control. This localized approach prevents harmful gas leakage in critical areas while maintaining overall system operability.
Solution Approach 2:
The system dynamically adjusts ventilation parameters in different areas based on real-time pressure difference monitoring. In high-risk areas, the control system actively adjusts the frequency and coordination of air supplement and exhaust machines to maintain appropriate pressure differences, preventing harmful gas leakage. This dynamic adaptation allows the system to provide targeted protection where needed while keeping operation manageable through automated control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dynamic control system ensures orderly ventilation treatment by regulating airflow based on real-time data, reducing coupling interference, and preventing harmful gas issues, thus maintaining a safe and controlled environment within the sewage treatment plant.
Implementation Method 1
a real-time dynamic monitoring module, wherein the real-time dynamic monitoring module is used for monitoring a pressure difference value between a driving ramp and an outdoor environment, a harmful gas concentration value in each area or room and a pressure difference value of each area or room in real time
Implementation Method 2
a real-time dynamic monitoring module, wherein the real-time dynamic monitoring module is used for monitoring a pressure difference value between a driving ramp and an outdoor environment, a harmful gas concentration value in each area or room
Implementation Method 3
the dynamic control platform determines the air supplement amount of the current environment according to the real-time exhaust air amount and the real-time pressure difference air amount, and regulates and controls the rotating speed of an air supplement machine of the air supplement system in real time according to the air supplement amount, so that the airflow flows from a harmless area to a harmful area
Implementation Method 4
the dynamic control platform determines a real-time exhaust air amount of each area or room according to the harmful gas concentration value obtained in each area or room; and obtains the real-time pressure difference air amount according to the pressure difference value between the driving ramp and the outdoor environment, as well as the pressure difference value of each area or room
Data Source
AI summary
A dynamic control system for ventilation of a fully buried sewage treatment plant has a real-time dynamic monitoring module. The real-time dynamic monitoring module is used for monitoring a pressure difference value between a driving ramp and an outdoor environment, a harmful gas concentration value in each area or room and a pressure difference value of each area or room in real time; the dynamic control platform is in signal connection with the real-time dynamic monitoring module; the dynamic control platform calculates and adjusts the pressure difference set value of each area or room according to the control requirement of the real-time flow direction of the harmful gas, determines the air supplement amount of the current environment according to the real-time exhaust air amount and the real-time pressure difference air amount, and regulates and controls the rotating speed of an air supplement machine of the air supplement system.