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معدات تهوية وتكييف ومعالجة الهواء في الغرف النظيفة
وحدة إزالة الرطوبة في الهواء الطازج
A packaged outdoor-air unit that filters, cools, dries and tempers humid make-up air before it enters a cleanroom air-handling or pressure-control system.
- 100 Percent Outdoor-Air Treatment
- Cooling Plus Desiccant Drying
- Recovered Condenser Heat
- Cleanroom Pressure Support
مقدمة المنتج
The fresh-air dehumidification unit treats the ventilation and replacement air that creates the largest seasonal latent load in many cleanrooms. A prefilter and cooling coil remove heat and bulk moisture, the desiccant section lowers the dew point, and recovered condenser or reactivation heat tempers the leaving air. Weather-resistant louvers, drainable coil sections and pressure-capable fans allow the unit to supply dry make-up air without burdening the recirculation AHU.
الخصائص الرئيسية
Mechanical cooling handles high-temperature bulk condensation while the desiccant stage addresses the remaining vapor load.
Recovered refrigeration heat can temper overcooled air and reduce separate reheat energy.
Low-leakage dampers and variable-speed supply control maintain the scheduled make-up airflow as filters load.
مخاوف المنتج للعملاء
Untreated outdoor air can overwhelm the sensible and latent capacity of a cleanroom recirculation unit, especially during humid weather.
Summer ventilation air drives room humidity above the process limit despite adequate recirculation cooling.The dedicated unit removes outdoor latent load before the make-up air joins the cleanroom supply stream.
Deep cooling alone produces air that is dry enough but too cold for direct delivery.Recovered condenser heat or a controlled heating coil resets the dry air to the required supply temperature.
A dirty intake filter reduces make-up airflow and weakens cleanroom positive pressure.Differential-pressure monitoring and variable-speed fan control preserve scheduled airflow and signal filter service.
Rain and wind-driven moisture enter through an exposed outside-air opening.A weather louver, drainable intake plenum and sloped stainless drain pan separate liquid water before the treatment sections.
تطبيقات نموذجية
Positive-pressure pharmaceutical cleanroomsLaboratory ventilation make-up airMedical-device manufacturing suitesElectronics plants in humid climatesClean corridors serving process exhaust rooms
المعلمات الفنية
Typical casing and dimensional ranges for a packaged cleanroom fresh-air dehumidification unit are shown below.
| المواد الأساسية | Cooling coil and desiccant rotor in a mineral-wool-insulated galvanized steel air-handling casing |
|---|---|
| سمك اللوحة | 40-60 mm double-skin insulated casing panel thickness |
| العرض الفعال | 1200-3500 mm nominal outdoor-air unit width |
| الحد الأقصى الطول | Up to 7500 mm including intake filtration cooling rotor and supply-fan sections |
| الصلب يواجه سمك | 0.8-1.2 mm pre-painted outer skin and galvanized or stainless inner skin |
| الكثافة الأساسية | 45-80 kg/m³ typical mineral-wool casing insulation density |
| الموصلية الحرارية | Approximately 0.035-0.045 W/(m·K) for mineral-wool casing insulation |
| إنهاء السطح | White weather-resistant powder coating with light-blue service doors and stainless wet-section surfaces |
| نوع المشترك | Bolted gasketed casing modules with flanged duct openings, flexible fan connections and welded drain pan |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Direct-expansion or chilled-water cooling sectionDesiccant wheel with electric steam or gas reactivationMERV 8 prefilter through high-efficiency final filter stagesOutdoor roof curb, weather hood and remote building-network controls
Planning a Fresh-Air Dehumidification Unit specification?
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