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Salle blanche HVAC et équipement de manutention de l'air
Unité de traitement de l'air frais
A supply-only air handler that filters and conditions 100% outdoor air before it enters the cleanroom recirculation or supply system.
- 100% Outdoor Air Treatment
- Deep Cooling and Reheat
- Intake Filter Protection
- Cleanroom Pressurization Support
Introduction de produit
A fresh air handling unit treats the full outdoor-air load required for ventilation, process exhaust replacement and building pressurization. Its treatment train normally includes weather intake protection, staged filtration, cooling and dehumidifying coils, reheat and optional humidification. Because outdoor conditions vary widely, coils and valves are selected for peak latent as well as sensible duty. The supply fan modulates to the scheduled ventilation quantity while frost protection and drainable wet sections protect the unit during seasonal operation.
Key Features
Deep cooling followed by controlled reheat separates moisture removal from final supply-air temperature.
Intake screens, dampers and prefilters protect coils from weatherborne debris and particulate loading.
Supply-air volume can track facility exhaust or pressure demand through variable-speed fan control.
Préoccupations du client produit
Outdoor air imposes the widest temperature, moisture and contamination range on a cleanroom HVAC system.
Humid summer air raises cleanroom dew point even when room temperature is acceptable.A deep cooling coil removes latent moisture before reheat establishes the required supply temperature.
Exhaust systems pull the cleanroom negative during high process operation.Fan airflow tracks the measured replacement-air or pressure requirement.
Wind-driven rain reaches filters and shortens their service life.A weather louver, drainage section and staged prefiltration protect internal treatment components.
Cold outdoor air freezes the first water coil during low-flow operation.Low-temperature detection, preheat and coordinated damper/fan control protect the coil circuit.
Les applications typiques
Cleanroom ventilation-air supplyLaboratory exhaust-air replacementPharmaceutical pressure make-upHospital outside-air treatmentBattery and electronics facilities
Paramètres techniques
Typical casing construction for a cleanroom fresh-air handling unit is summarized below.
| Matériaux de base | Closed-cell polyurethane insulation in weather-resistant double-skin panels |
|---|---|
| Panneau épaisseur | 50–70 mm insulated casing |
| Largeur effective | 900–3200 mm nominal unit width |
| Longueur maximale | Up to 10000 mm including intake, coil, filter and fan sections |
| Acier face épaisseur | 0.6–1.0 mm exterior and 0.8–1.0 mm wet-section lining |
| Densité Core | 40–45 kg/m³ closed-cell polyurethane |
| Conductivité thermique | 0.022–0.026 W/(m·K) for polyurethane casing insulation |
| surface finie | UV-stable powder-coated outer skin with galvanized or stainless cleanable inner skin |
| Type joint | Gasketed thermal-break frame with weather-sealed intake and modular section joints |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
Hot-water, steam or electric preheatChilled-water or DX dehumidifying coilHot-water, electric or heat-pump reheatSteam or high-pressure humidification
Planning a Fresh Air Handling Unit specification?
Envoyez-nous vos dimensions, conditions d'installation, objectifs de performance et finition de surface requise.
