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الألمانية
العربيةالحالي
الفرنسية
الإندونيسية
اليابانية
الكورية
اللغة الملاوية
البرتغالية
الروسية
الإسبانية
التايلاندية
اللغة التركية
اللغة الفيتنامية
أنظمة توزيع الهواء في الغرف النظيفة
مستطيل قناة كاتم الصوت
A straight rectangular sound attenuator with aerodynamic splitters that absorbs fan and airflow noise within the duct path.
- Aerodynamic Acoustic Splitters
- Straight-Through Air Path
- Perforated Protective Liners
- Cleanroom Media Options
مقدمة المنتج
A rectangular duct silencer places parallel acoustic splitters inside a sealed galvanized casing. Perforated metal faces expose sound energy to the protected absorptive media while maintaining a defined straight airflow passage. Splitter thickness, air gap and overall length are selected to balance insertion loss against system pressure drop. For hygiene-sensitive air, polymer film liners or packless resonant construction isolate fibrous media from the airstream.
الخصائص الرئيسية
Aerodynamic noses and tails reduce turbulence where air enters and leaves each baffle.
Perforated metal or film-protected faces prevent erosion of acoustic fill into the air stream.
Low-, medium- and high-velocity configurations match different pressure-drop allowances.
مخاوف المنتج للعملاء
A duct silencer must reduce the relevant frequency bands without consuming the fan pressure needed for filters and terminal devices.
Fan blade-pass noise travels directly through the supply main.Selected splitter spacing and length absorb energy in the dominant octave bands.
A restrictive silencer increases fan energy and reduces cleanroom airflow.Air-gap area and aerodynamic splitter profiles are sized for the scheduled face velocity.
Fibrous acoustic media is unacceptable in a critical supply stream.Film-lined or packless construction isolates or eliminates exposed fibrous fill.
The silencer casing leaks around splitter penetrations and seams.Sealed outer construction maintains the same leakage duty as the connected duct system.
تطبيقات نموذجية
Air-handling-unit discharge noise controlCleanroom supply-air mainsLaboratory exhaust systemsFan intake and outlet plenumsMechanical-room duct penetrations
المعلمات الفنية
Representative construction ranges for a rectangular HVAC duct silencer are summarized below.
| المواد الأساسية | High-density glass fiber, mineral wool or packless resonant acoustic elements |
|---|---|
| سمك اللوحة | 100–300 mm acoustic splitter thickness |
| العرض الفعال | 200–1600 mm duct connection width |
| الحد الأقصى الطول | 600–2400 mm silencer casing length |
| الصلب يواجه سمك | 0.8–1.2 mm galvanized casing and perforated liner |
| الكثافة الأساسية | 32–64 kg/m³ absorptive acoustic media |
| الموصلية الحرارية | 0.034–0.041 W/(m·K) for straight-splitter absorptive fiber media |
| إنهاء السطح | G90 galvanized casing with perforated galvanized, film-lined or stainless airstream faces |
| نوع المشترك | Rectangular flange connection matched to duct size with sealed casing seams |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Absorptive, film-lined or packless constructionGalvanized, aluminum or stainless casingLow-, medium- or high-velocity splitter geometryExtended casing for enhanced low-frequency attenuation
Planning a Rectangular Duct Silencer specification?
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