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FFU ومعدات تنقية الهواء الطرفية
وحدة تصفية مروحة منخفضة الضوضاء
An EC-powered FFU for occupied cleanroom work areas, combining a vibration-isolated fan assembly with acoustic treatment in the upstream plenum.
- Acoustically Treated Plenum
- Elastomeric Fan Isolation
- Radiused Air Inlet
- Variable EC Speed Control
مقدمة المنتج
The low-noise fan filter unit combines a backward-curved EC fan, vibration-isolated motor support and an acoustically treated plenum. A radiused inlet guides air into the wheel, while the final filter forms the clean-air outlet. The housing arrangement is intended for occupied cleanroom work areas where access for service, acoustic performance and filtered airflow all affect equipment selection.
الخصائص الرئيسية
A radiused intake bell lowers inlet turbulence and the broadband noise associated with a sharp-edged opening.
The acoustic treatment is located within the upstream plenum rather than on the downstream filter face.
Continuous EC speed control allows the unit to operate at the lowest practical rotational speed for the required airflow.
حلول للتطبيق الخاص بك
Noise control in an occupied cleanroom depends on the selected duty and the installed sound-transmission paths, not the fan label alone.
A single headline noise value gives little indication of sound at a seated workstation.Compare acoustic results at the intended airflow and measurement position before selecting the unit.
Fan vibration travels through a rigid casing and turns the suspended ceiling into a sounding board.Elastomeric mounts interrupt the structural transmission path between the fan and the module frame.
A sound-absorbing material must also suit the cleanroom air path and cleaning regime.Include liner facing and sealing in the construction selection, keeping acoustic treatment upstream of the final filter.
A unit selected at maximum speed remains unnecessarily loud after room balancing.Variable EC control lets each module run only fast enough to meet the measured airflow setpoint.
تطبيقات نموذجية
Pharmaceutical inspection roomsClean laboratories with seated operatorsمناطق تجميع الجهاز الطبيHospital pharmacy cleanroomsMetrology and optical inspection spaces
المعلمات الفنية
Common reference configuration choices for a low-noise ceiling FFU.
| Ceiling-Format Options | Common nominal formats: 2 x 2 ft and 2 x 4 ft |
|---|---|
| سرعة الوجه المرجعي | Typical selection target: 0.45 m/s, with adjustable EC fan speed |
| تركيب المروحة | Backward-curved centrifugal EC fan |
| Acoustic Treatment | Acoustically treated upstream plenum, with lining outside the final-filter discharge path |
| Vibration Isolation | Elastomeric isolation between the fan assembly and housing |
| Air-Inlet Construction | Radiused inlet feeding the centrifugal fan |
| Supply-Voltage Option | Common option: 230 V AC |
| Speed-Control Options | Local adjustment or 0-10 V analogue input; network control with a compatible controller |
| Final-Filter Options | HEPA or ULPA panel with a matched frame and perimeter seal |
| الاحتفاظ مرشح | Gasket-compression frame with removable outlet access |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Acoustic-lined or standard plenumLow-sound EC motor selectionRemote speed controller or network interfaceLow-resistance final filter sized for reduced fan speed
Acoustic Selection and Installation
Compare sound at the required duty
Include the airflow requirement, filter resistance and operator position when requesting a low-noise selection. Acoustic comparisons need the same operating point, weighting, microphone distance and installation conditions. A sound-power figure is not interchangeable with a sound-pressure reading in the room.
Choose the filter and controls together
The final-filter grade and resistance affect the fan speed needed for the duty. Specify the filter seal and service access with the unit. Remote speed controllers and network interfaces are configuration choices; the acoustic construction should also identify the liner facing, enclosure and cleaning compatibility.
Protect the installation and maintenance path
Match the unit to the ceiling opening, load-bearing supports and available overhead space. Keep the inlet clear and avoid rigid service connections that bridge the vibration isolation. Electrical installation must match the supplied motor rating. Isolate the power before servicing and protect the final-filter media during handling.
If ceiling depth is the main constraint, compare the low-profile fan filter unit. For selections driven by added system resistance, see the high-static-pressure fan filter unit.
Planning a Low-Noise Fan Filter Unit specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
