1. Sensor Monitoring System
Air Purification Equipment Isolator first relies on an accurate sensor monitoring system to achieve differential pressure control. High-precision pressure sensors are installed at specific locations inside and outside the isolator. These sensors can sense the pressure changes of the internal and external environments in real time, and convert the pressure signals into electrical signals to feed back to the control system of the equipment. For example, the use of micro differential pressure sensors can achieve a very small range of values, and can accurately capture the subtle differences in internal and external pressures. The stability of the sensor is also crucial to ensure that reliable data is provided during long-term operation, providing an accurate basis for subsequent differential pressure adjustment.
2. Fan and air volume adjustment
The fan is one of the key components for controlling differential pressure. The fan in the Air Purification Equipment Isolator affects the internal pressure by adjusting the air volume. When the internal pressure is lower than the set value, the control system will instruct the fan to increase the speed, thereby increasing the amount of air sent into the isolator and increasing the internal pressure; conversely, when the internal pressure is higher than the set value, the fan speed will decrease and the air supply will be reduced. In addition, some advanced isolators use variable frequency fans, which can more accurately adjust the air volume according to the pressure difference requirements. At the same time, the air volume can be assisted by adjusting the air door opening of the fan outlet, thereby achieving effective control of the pressure difference.
3. Synergy of the exhaust system
In addition to the fan air supply, the exhaust system also plays a synergistic role in the pressure difference control. The size, number and exhaust speed of the exhaust port will affect the pressure inside the isolator. By setting an adjustable valve at the exhaust port or using a constant air volume exhaust device, the exhaust volume can be accurately controlled. When the internal pressure needs to be increased, the exhaust volume can be appropriately reduced; when the internal pressure needs to be reduced, the exhaust volume is increased. The exhaust system cooperates with the fan air supply system to maintain the internal pressure of the isolator within the set pressure difference range. For example, in some strictly required isolation environments, the exhaust system will dynamically adjust the exhaust volume according to factors such as the operating status of the internal equipment and the operation of the personnel to ensure the stability of the pressure difference.
4. Intelligent adjustment of the control system
The control system is the core of realizing pressure difference control. It receives signals from the pressure sensor and makes intelligent judgments and adjustments according to the preset pressure difference range. The control system uses advanced algorithms that can not only regulate the fan and exhaust system in real time, but also compensate for other factors that may affect the pressure difference. For example, when the door of the isolator is opened briefly and the influx of outside air causes the internal pressure to change, the control system can respond quickly, adjust the parameters of the fan and exhaust system, and quickly restore to the set pressure difference state. At the same time, the control system can also record the historical data of the pressure difference change for fault diagnosis and equipment performance optimization, ensuring the long-term stability and reliability of the pressure difference control.
