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Системы распределения воздуха в чистых помещениях
Прямоугольный глушитель
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
Введение продукции
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.
Основные характеристики
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.
Обеспокоенность клиентов продуктами
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.
Типичные приложения
Air-handling-unit discharge noise controlCleanroom supply-air mainsLaboratory exhaust systemsFan intake and outlet plenumsMechanical-room duct penetrations
Технические параметры
Representative construction ranges for a rectangular HVAC duct silencer are summarized below.
| Основной материал | High-density glass fiber, mineral wool or packless resonant acoustic elements |
|---|---|
| Толщина панели | 100–300 mm acoustic splitter thickness |
| эффективная ширина | 200–1600 mm duct connection width |
| Максимальная длина | 600–2400 mm silencer casing length |
| Толщина линий стали | 0.8–1.2 mm galvanized casing and perforated liner |
| Плотность ядра | 32–64 kg/m³ absorptive acoustic media |
| Теплопроводимость | 0.034–0.041 W/(m·K) for straight-splitter absorptive fiber media |
| Поверхностная отделка | G90 galvanized casing with perforated galvanized, film-lined or stainless airstream faces |
| Объединенный тип | Rectangular flange connection matched to duct size with sealed casing seams |
| Customization | Доступно в зависимости от предполагаемого применения и операционной среды. |
Доступные варианты
Absorptive, film-lined or packless constructionGalvanized, aluminum or stainless casingLow-, medium- or high-velocity splitter geometryExtended casing for enhanced low-frequency attenuation
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