PID Closed Loop Control Water Treatment Machine Non Negative Pressure 5-500m³/H

In scenarios such as industrial production, high-rise buildings, and municipal water supply that require extremely high water pressure stability, traditional water supply methods often suffer from issues such as large water pressure fluctuations, high energy consumption, and low automation levels, which affect the user experience and equipment lifespan. Our constant pressure variable frequency water supply system, relying on intelligent variable frequency technology and closed-loop control principles, has become an ideal solution for complex water use environments with the core advantages of "on-demand water supply, constant pressure stability, and energy efficiency".

1. Dynamic pressure closed-loop control
Real time collection of pipeline pressure (accuracy ± 0.5% FS) through high-precision pressure sensors, data transmission to PLC controller for comparison with set pressure value (such as 0.4MPa), intelligent calculation by PID algorithm, and driving frequency converter to dynamically adjust water pump speed:
Water peak: When the water consumption surges and the pressure drops, the water pump automatically accelerates (frequency increases) to quickly replenish the pressure in the pipeline network;
Low water consumption: When the water consumption decreases, the water pump slows down (frequency decreases) to avoid energy waste caused by excessive pressure. The ultimate goal is to achieve stable pressure in the pipeline network within a fluctuation range of ± 0.01MPa, which is 80% more stable than traditional power frequency water supply and completely solves the problem of fluctuating water pressure.
2. Collaborative operation of core components
Variable frequency control cabinet: equipped with international brand variable frequency drives such as ABB/Siemens, supporting 0-50Hz stepless speed regulation, overload protection response time<0.1 seconds, ensuring smooth start stop of the water pump without impact;
3. Intelligent constant pressure, adaptable to all working conditions
Stable water pressure guarantee: Whether it is high-rise building high area water supply (suitable for 30-300 meter head) or industrial production line precision equipment water supply, the fluctuation of end water pressure is always controlled within ± 0.01MPa, protecting end equipment such as water heaters and machine tool cooling systems from pressure impact;
Wide range adaptation: supporting a water supply flow rate of 5-500 m ³/h, from small communities to large industrial parks, a single system can cover the water needs of 50-1000 households without frequent equipment replacement.
4. Efficient and energy-saving, reducing operating costs
Variable frequency speed regulation for energy saving: Through the dynamic water supply mode of "compensating for the difference", it saves 30% -70% of electricity compared to traditional power frequency water supply. Taking the 100m ³/h system as an example, the annual electricity cost savings can reach 150000 yuan (calculated at 0.8 yuan/kWh);