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أنظمة التحكم في الغرف النظيفة والمراقبة البيئية
Room نظام التحكم في الضغط
A fast room-level control package that compares differential pressure with setpoint and modulates supply or exhaust airflow to preserve the intended pressure cascade.
- Fast Pressure Response
- Door-Aware Control Logic
- Supply and Exhaust Coordination
- Local Pressure Display
مقدمة المنتج
The room pressure control system combines a low-range differential pressure sensor, room controller, modulating airflow device and local display. It regulates the offset between supply and exhaust so the room remains positive or negative relative to its reference space. Door contacts allow the controller to suspend aggressive correction while a door is open, avoiding actuator hunting and airflow overshoot. The local display gives occupants immediate status while the network interface sends pressure, alarms and operating mode to the supervisory system.
الخصائص الرئيسية
Door-open logic reduces unnecessary damper movement during normal personnel passage.
Cascade control can coordinate supply and exhaust devices around a defined airflow offset.
Local indication and remote network values present the same room condition to users and operators.
مخاوف المنتج للعملاء
Room pressure can change within seconds when a door opens, an exhaust device changes state or an airflow path becomes restricted.
A door opening causes the controller to drive the airflow device to an extreme position.Door-aware logic holds or limits correction until the doorway disturbance has cleared.
Independent supply and exhaust loops fight each other and destabilize the room.A coordinated airflow offset maintains one consistent pressure-control strategy.
Small pressure changes are hidden by an unsuitable high-range sensor.A dedicated low-differential-pressure transducer provides the resolution needed for room control.
Occupants cannot tell whether the room is safe to enter.A color status display and audible alarm make the current pressure condition visible at the door.
تطبيقات نموذجية
Positive-pressure pharmaceutical roomsNegative-pressure containment roomsHospital isolation suitesResearch laboratory airlocks
المعلمات الفنية
Typical enclosure and sensing-package construction for cleanroom room pressure control is shown below.
| المواد الأساسية | Flame-retardant polycarbonate room controller with MEMS pressure sensor and powder-coated steel damper panel |
|---|---|
| سمك اللوحة | 45-120 mm controller and display depth |
| العرض الفعال | 120-240 mm room display width |
| الحد الأقصى الطول | Up to 300 mm display or controller height |
| الصلب يواجه سمك | 1.0-1.5 mm for the optional steel control enclosure |
| الكثافة الأساسية | 1180-1220 kg/m³ for polycarbonate housing parts |
| الموصلية الحرارية | 0.19-0.22 W/(m·K) for polycarbonate housing material |
| إنهاء السطح | Smooth white polycarbonate display face with blue backlit status screen |
| نوع المشترك | Flush wall display with barbed pressure ports, pluggable terminals and network connector |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Positive or negative pressure modeSupply or exhaust damper controlDoor contact integrationBACnet or Modbus communication
Planning a Room Pressure Control System specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
