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Equipos de HVAC y manejo de aire para salas limpias
Z Coil de enfriamiento de expansión directa por
A direct-expansion evaporator coil that boils refrigerant inside multiple copper circuits to cool and dehumidify cleanroom air.
- Multi-Circuit Refrigerant Distribution
- Direct Evaporative Cooling
- Large Suction Header
- Matched Condensing Unit Service
Introducción del producto
Liquid refrigerant enters a brass distributor and divides through small feeder tubes into multiple copper circuits. It evaporates as air crosses the fin pack, then returns through a large suction header to the remote condensing unit. Distributor sizing, circuit length and coil orientation are coordinated to keep all rows active across the expected load range and to return oil reliably.
Características clave
Copper circuits and aluminum fins provide direct sensible and latent cooling without a secondary water loop.
A large suction header collects vapor at controlled velocity for stable superheat and oil return.
Independent or intertwined circuits can support staged compressors and part-load face coverage.
Preocupaciones del producto del cliente
DX coils depend on uniform refrigerant distribution and correctly matched circuits to prevent starving, flooding and temperature streaks.
Unequal feeder flow leaves some coil circuits inactive.A matched distributor and equal-length feeder tubes divide refrigerant across every circuit.
Low load causes unstable superheat and liquid carryover.Staged or intertwined circuits preserve active face area and stable expansion-valve control.
Long suction runs fail to return compressor oil.Header diameter, circuit velocity and piping traps are selected around the remote condensing unit.
Condensate carryover wets downstream filters.Coil face velocity, fin treatment and drain-pan geometry are coordinated for complete drainage.
Aplicaciones típicas
Remote-DX cleanroom air handlersPackaged make-up air unitsLaboratory environmental chambersMedical manufacturing HVACDedicated humidity-control systems
Parámetros técnicos
Representative construction ranges for a multi-circuit cleanroom DX evaporator coil are listed below.
| Materiales Core | C12200 copper refrigerant tubes with aluminum fins, brass distributor and copper suction header |
|---|---|
| Panel de espesor | 1.5-2.0 mm galvanized or stainless casing |
| Ancho efectivo | 400-2800 mm active fin face width |
| Longitud máxima | Up to 4000 mm overall coil casing length |
| Acero frente a espesor | 1.0-1.5 mm stainless drain pan where supplied |
| Densidad Core | Approximately 8940 kg/m³ for the C12200 copper refrigerant-tube circuit |
| Conductividad térmica | Approximately 339 W/(m·K) for the C12200 copper DX refrigerant tubes at room temperature |
| Superficie acabada | Natural, blue hydrophilic or epoxy-coated aluminum fins |
| Tipo conjunto | Brazed copper refrigerant circuits with flared or brazed distributor and suction connections |
| Customization | Disponible según la aplicación prevista y el entorno operativo. |
Opciones disponibles
Single, staged or intertwined refrigerant circuitsDifferent tube diameters and row countsHydrophilic or epoxy-coated finsStainless casing, drain pan and moisture eliminator
Planning a Direct-Expansion Cooling Coil specification?
Envíenos sus dimensiones, condiciones de instalación, objetivos de rendimiento y acabado superficial requerido.
