High-airflow cleanroom recirculation air handling unit

클린룸 HVAC 및 공기 처리 장비

재순환 공기 처리 유닛

A high-volume return-air unit that recirculates filtered cleanroom air while handling sensible load and maintaining stable airflow.

High Recirculation Airflow
Low Fan Energy Path
Stable Sensible Cooling
Variable-Speed Air Volume

견적 요청 제품 찾아보기

상품 소개

The recirculation air handling unit moves the high air volume needed for particle dilution without repeatedly conditioning the entire stream as outdoor air. Return air passes through accessible filters, a cooling or trim coil and direct-drive fans before returning to ceiling filters or supply distribution. Fresh conditioned air can enter upstream as a smaller measured quantity. Large coil face area and low-pressure-drop components reduce fan energy, while airflow control compensates for terminal filter loading and operating mode changes.

주요 기능

Large filter and coil face areas keep pressure drop low across the high recirculation volume.

A small conditioned fresh-air connection can be mixed with the return stream without oversizing the outdoor-air unit.

Direct-drive fan arrays provide turndown and service redundancy for continuous production areas.

Sensible trim cooling removes room and fan heat without duplicating full latent treatment.

고객 제품 관심사

High cleanroom air-change rates magnify every unnecessary filter, coil and duct pressure loss in the recirculation path.

A small coil and filter bank create excessive fan energy at high recirculation volume.Expanded face area lowers component velocity and reduces pressure drop.

Terminal filter loading gradually reduces cleanroom air changes.Variable-speed fans maintain the scheduled airflow or duct static-pressure setpoint.

One large fan failure stops production airflow.A multi-fan array can continue at reduced capacity while one fan position is isolated.

Mixing humid outdoor air into the return stream destabilizes room moisture.A separate conditioned fresh-air connection introduces air at a controlled dew point.

일반적인 응용 프로그램

Large pharmaceutical cleanroomsSemiconductor clean productionMedical-device assembly hallsBattery manufacturing clean zonesHigh-air-change laboratories

기술 매개변수

The following ranges describe a high-volume cleanroom recirculation AHU casing.

핵심 재료	Polyurethane or high-density mineral-wool acoustic and thermal panel insulation
패널 두께	50–60 mm double-skin casing
유효 폭	1200–4200 mm nominal casing width
최대 길이	Up to 9000 mm for filters, coil, fan array and mixing section
강철 면면 두께	0.6–1.0 mm galvanized or coated casing skins
코어 밀도	42–45 kg/m³ polyurethane or 80–110 kg/m³ mineral wool
열전도도 (Thermal Conductivity)	0.022–0.040 W/(m·K) depending on panel core
표면 마무리	Powder-coated outer skin with smooth galvanized or coated inner skin
접합 유형	Gasketed low-leakage panel joints and bolted modular fan/coil sections
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

EC fan wall with N+1 fan positionChilled-water or refrigerant trim coilReturn prefilter or fine-filter bankTop, side or end return and supply connections

Planning a Recirculation Air Handling Unit specification?

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