高效出風口

1. Product Overview

The High Efficiency Air Outlet, also known as HEPA Air Outlet, is a terminal air supply device in cleanroom HVAC purification systems. Installed on the cleanroom ceiling, it houses a high-efficiency filter and delivers treated clean air uniformly into the cleanroom. It is one of the key equipment components for maintaining cleanroom cleanliness levels.

High Efficiency Air Outlets are typically used in conjunction with duct systems and air handling units. They are suitable for cleanroom environments ranging from ISO Class 5 to ISO Class 8 and are widely used in pharmaceutical, biotechnology, electronics manufacturing, hospital, and food processing industries.

2. Working Principle

The working principle of the High Efficiency Air Outlet is based on a combination of centralized air supply and terminal filtration.

First, Air Source Supply. A central air handling unit or fan provides air that has passed through preliminary and medium-efficiency filters. This air is delivered to each High Efficiency Air Outlet through supply ducts.

Second, Terminal Filtration. Air enters the High Efficiency Air Outlet and passes through the built-in HEPA or ULPA filter, where airborne particles, bacteria, dust, and other contaminants are efficiently captured.

Third, Uniform Air Supply. The filtered clean air passes through the diffuser plate or airflow uniforming device at the outlet and is delivered into the cleanroom at a uniform velocity and direction, creating the required airflow pattern.

Fourth, Pressure Differential Maintenance. The High Efficiency Air Outlet works together with return air outlets to establish and maintain the required pressure differential gradient within the cleanroom, preventing contaminants from migrating from lower cleanliness areas to higher cleanliness areas.

3. Product Structure and Components

The High Efficiency Air Outlet consists of the following core components:

Housing: Manufactured from high-quality cold-rolled steel sheet or stainless steel sheet, with electrostatic spray or powder coating finish for good corrosion resistance and aesthetic appearance. The housing is designed to be airtight.

高效篩檢程式：覈心過濾組件，包括HEPA篩檢程式（0.3微米顆粒效率為99.97%或更高）和ULPA篩檢程式（0.12微米顆粒效率達到99.999%或更高。 篩檢程式可以是分離式或迷你褶皺式。

擴散器板：安裝在出風口，通常由鋁合金或不銹鋼製成，具有均勻分佈的小孔或槽，以確保供應的空氣均勻分佈。

Air Volume Control Damper: Installed at the air inlet end of the outlet, used to adjust the air volume delivered into the cleanroom, allowing adjustment of air change rates and pressure differential based on actual requirements.

Sealing Device: Includes sealing gaskets between the housing and the ceiling, and sealing strips between the filter and the housing, ensuring the system is airtight.

壓差測試埠：用於連接壓力錶，便於監測篩檢程式阻力變化，以確定何時需要更換篩檢程式。

Insulation Layer: Some models have an insulation layer on the exterior of the housing to prevent condensation during air conditioning operation.

4. Features and Advantages

First, High Filtration Efficiency. Built-in HEPA or ULPA filters efficiently remove microscopic airborne particles, ensuring supply air cleanliness meets cleanroom requirements.

Second, Uniform Air Distribution. Optimized diffuser plate design provides uniform and stable air supply, minimizing turbulence and dead zones, helping maintain cleanroom cleanliness.

Third, Compact Structure. The housing is compact, occupying minimal ceiling space, suitable for buildings with limited overhead space.

Fourth, Easy Installation. Standardized interface dimensions and installation methods allow direct connection to common duct systems, making installation quick and simple.

Fifth, Convenient Maintenance. Filters can be replaced from inside the cleanroom or from above the ceiling. Some models feature side-pull or bottom-pull designs for simple replacement.

Sixth, Adjustable Air Volume. Equipped with an air volume control damper, allowing flexible adjustment of supply air volume based on actual cleanroom requirements.

Seventh, Good Sealing Performance. Multiple sealing designs ensure system airtightness, preventing unfiltered air from leaking into the cleanroom through gaps.

第八，優質資料。 外殼由優質鋼材製成，經過先進的表面處理，具有耐腐蝕性、易清潔性、美觀性和耐用性。

5.技術規範（標準）

外殼資料：冷軋鋼板或不銹鋼板（304或316L）

表面處理：靜電噴塗或粉末噴塗

Standard Dimensions (Width × Height × Depth): Various standard sizes available, such as 600×600×500mm, 750×750×500mm, 900×600×500mm, and customizable

High Efficiency Filter Type: HEPA filter or ULPA filter

HEPA Filtration Efficiency: 99.97% or higher for 0.3 micron particles

ULPA Filtration Efficiency: 99.999% or higher for 0.12 micron particles

Rated Airflow: 500 to 3000 cubic meters per hour (varies by size and model)

Face Velocity: 0.45 to 1.5 meters per second (adjustable)

Diffuser Plate Material: Aluminum alloy or stainless steel

Air Volume Control Damper: Opposed blade multi-leaf damper or single-leaf damper

Sealing Method: Gasket seal or gel seal

Operating Temperature: 0 to 40 degrees Celsius

Operating Humidity: Less than 95% relative humidity

安裝方式：嵌入式天花板安裝

6.產品分類

按篩檢程式類型：HEPA高效出風口，配備HEPA篩檢程式，適用於傳統潔淨室環境。 ULPA高效出風口，配備ULPA篩檢程式，適用於ISO 5級以上的更高清潔度要求。

按材質：碳鋼高效出風口，外殼採用冷軋鋼板粉末塗層，經濟實用。 不銹鋼高效出風口，外殼由304或316L不銹鋼製成，具有高度耐腐蝕性，適用於潮濕或腐蝕性環境。

By Installation Method: Ceiling Supply Type, standard installation with air supplied downward from ceiling. Side Supply Type, wall-mounted, suitable for special airflow pattern requirements.

By Diffuser Type: Perforated Plate Diffuser, featuring uniformly distributed round holes for even air dispersion. Louvered Diffuser, featuring adjustable louvers for airflow direction control.

By Sealing Method: Gasket Seal Type, using sealing gasket between filter and housing, lower cost. Gel Seal Type, using gel seal technology for superior airtightness, suitable for applications with extremely high sealing requirements.

By Insulation: Non-Insulated Type, without insulation layer. Insulated Type, with insulation layer on housing exterior to prevent condensation.

7. Application Areas

High Efficiency Air Outlets are widely used in various locations with strict air cleanliness requirements.

Pharmaceutical Industry: Used in drug production workshops, sterile preparation workshops, API purification and packaging workshops, quality control laboratories, complying with GMP requirements. High Efficiency Air Outlets provide clean air to ensure air quality during pharmaceutical production meets specified standards.

Biotechnology and Life Sciences: Used in biological laboratories, cell culture rooms, genetic laboratories, microbiology testing rooms, etc., preventing airborne microorganisms and particles from contaminating experimental samples and cultures.

Semiconductor and Electronics Manufacturing: Used in chip fabrication workshops, wafer processing areas, LCD panel production workshops, precision electronic component assembly lines, etc., providing high-cleanliness air environments to prevent microscopic particles from causing defects in electronic components.

Hospitals and Medical Facilities: Used in operating rooms, ICU wards, sterile treatment rooms, central sterile supply departments, isolation wards, etc. High Efficiency Air Outlets provide clean air to reduce hospital infection risks and protect patients and medical staff.

Food and Beverage Processing: Used in food packaging workshops, dairy filling lines, beverage production workshops, meat processing workshops, etc., preventing airborne microorganisms from contaminating food products and extending product shelf life.

Precision Instruments and Optics Manufacturing: Used in lens assembly workshops, precision instrument calibration rooms, optical coating workshops, etc., providing dust-free environments to protect precision instruments and optical components from contamination.

Laboratories and R&D Centers: Used in chemical laboratories, physics laboratories, materials science laboratories, analytical testing centers, etc., protecting experimental samples and precision instruments from airborne particle interference.

Medical Device Manufacturing: Used in medical device production workshops, implant manufacturing workshops, single-use sterile device packaging workshops, etc., ensuring products are not contaminated by microorganisms during production.

化妝品生產：用於化妝品灌裝車間、乳化車間、包裝車間等，防止空氣中的微生物污染化妝品，確保產品品質和安全。

資料中心和電腦室：用於服務器室、電信室、控制中心等。 高效出風口有助於保持設備運行所需的清潔環境和溫度控制。

動物飼養設施：用於SPF動物室、實驗動物中心、動物手術室等，防止空氣傳播的病原體進入動物飼養區，保護實驗動物的健康。

Aerospace and Defense: Used in spacecraft assembly workshops, precision navigation equipment manufacturing workshops, weapons system maintenance workshops, and other applications with special cleanliness requirements.

8. Comparison with Other Cleanroom Equipment

高效出風口與FFU：高效出風口不包含集成風扇，依賴中央暖通空調系統提供空氣供應。 FFU有一個內寘風扇，可以獨立運行。 高效出風口適用於初始投資較低的新型大型潔淨室項目。 FFU適用於需要獨立氣流控制的翻新項目和應用。

高效出風口與風扇過濾箱：風扇過濾箱通常包括風扇和篩檢程式作為一個完整的供氣單元。 高效出風口只是一個終端設備，需要外部風扇才能運行。 高效出風口結構更簡單，維護成本更低。

High Efficiency Air Outlet vs. Standard Diffuser: Standard diffusers do not have filtration capability and only serve to distribute airflow. The High Efficiency Air Outlet provides both diffusion and high-efficiency filtration, making it a dedicated air supply device for cleanrooms.

9. Selection Guide

Cleanliness Requirement: Select the appropriate High Efficiency Air Outlet based on the required ISO cleanliness class. For ISO Class 5 and above, ULPA filters are recommended. For ISO Class 6 to Class 8, HEPA filters are suitable.

Airflow Requirement: Calculate the total supply air volume based on cleanroom area, height, and required air change rate. Determine the number of High Efficiency Air Outlets needed and the rated airflow per outlet.

Installation Space: Measure the ceiling plenum height and select a housing of appropriate height. For limited space, choose a low-profile High Efficiency Air Outlet.

Material Selection: For normal dry environments, carbon steel with powder coating is suitable. For humid environments or locations with corrosive gases, choose stainless steel housing.

Sealing Requirement: For applications with high airtightness requirements (such as biosafety laboratories, sterile pharmaceutical workshops), gel seal type High Efficiency Air Outlets are recommended.

Diffuser Type: For applications requiring high airflow uniformity, choose perforated plate diffusers. For applications requiring adjustable airflow direction, choose louvered diffusers.

Maintenance Convenience: Consider the workspace available for filter replacement and select a model that can be serviced from inside the cleanroom or from above the ceiling.

Compliance Requirements: The pharmaceutical industry should select High Efficiency Air Outlets that comply with GMP requirements, typically requiring material certificates and factory test reports.

10. Installation and Maintenance

Installation Key Points: Before installation, check that the ceiling opening dimensions match the air outlet. Install supply ducts in the ceiling plenum, ensuring good duct sealing. Insert the High Efficiency Air Outlet housing into the ceiling opening, using sealing gaskets to seal against the ceiling. Connect the supply duct to the air outlet inlet, using flanges and sealing gaskets to ensure leak-free connections. Install the high-efficiency filter, ensuring correct orientation and proper sealing. Install the diffuser plate. Connect pressure differential test tubing. Perform system commissioning to test air supply volume and pressure differential.

篩檢程式更換程式：關閉暖通空調系統或關閉相應的出風口風門。 拆下擴散板。 從殼體上拆下舊濾清器。 清潔篩檢程式安裝架和密封面。 安裝新篩檢程式，確保密封墊被均勻壓縮。 重新安裝擴散板。 重新啟動系統並執行氣流速度和壓差測試。 記錄篩檢程式更換日期和壓差讀數。

日常維護：定期觀察壓力錶讀數。 當壓差達到初始阻力的兩倍時，需要更換篩檢程式。 定期清潔擴散板表面，防止灰塵積聚影響氣流分佈。 檢查密封點是否漏氣。 定期進行氣流速度測試，以確保送風量符合設計要求。 定期進行篩檢程式完整性測試（PAO洩漏測試），以驗證篩檢程式是否洩漏。

Common Troubleshooting: If supply air volume is insufficient, check whether the air volume control damper is fully open, whether the filter is clogged, or whether the supply duct is leaking. If air supply is uneven, check whether the diffuser plate is clogged or improperly leveled. If pressure differential is too high, the filter is clogged and requires replacement. If condensation occurs on the housing, check whether the insulation layer is intact or whether the supply air temperature is too low.