◆ SDB產(chǎn)品特點

   Product  Feature

★ SDB箱式風(fēng)機設(shè)計在保證消防安全的前提下，特別考慮降低噪音，消音材料的選擇，消音層設(shè)計等方面做了大量的研究和實踐。風(fēng)機進(jìn)口兩側(cè)空間與入口直徑比符合AMCA標(biāo)準(zhǔn)值。經(jīng)過測試，SDB系列風(fēng)機箱的聲功率級比同系列單層箱體產(chǎn)品低10分貝左右。是降低噪音排風(fēng)的理想選擇，特別適合需要安靜的場所使用。

A lot of research has been focused on reducing noise level generated by the fan .This research includes acoustic evaluation of the fan structure, careful selection of the insulation material, and optimal acoustic lining. The ratio of reserved distance from sidewall to inlet bell compare with inlet  bell diameter designed according to AMCA recommandation .The sound power level of the SDB double wall fan model is rated at 5-7dB(A)below that of the single wall model.SDB is an ideal choice for low noise Ventilation requirements, and is especially suitable for large public buildings.

◆用途示例

A.低噪音風(fēng)機箱（A型：電機內(nèi)置，D型：雙層消聲箱體）

B.普通經(jīng)濟(jì)型風(fēng)機箱（A型：電機內(nèi)置，S：單層箱體）

C.消防排煙風(fēng)機兼普通排風(fēng)（B型：電機外置，D：雙層箱體）

D.消防系統(tǒng)正壓送風(fēng)機（B型：電機外置，D單層箱體）

E.廚房排油煙用，對環(huán)境噪聲要求較高（B型：電機外置，D：雙層箱體）

A. low noise cabinet fan (Type A :Motor positioned in air flow pathwan ,

   D:Double wall insulation)

B. Economical duct fan(Type A:Motor positioned in air flow pathway,

   S:Single wall housing)

C. For both smoke removal and normal exhaust (Type B:Motor positioned

   Away from air flow, D: Double wall insulation)

D. Positive pressure supply fan for smoke emergency (Type B:Motor positioned

   Away from air flow, S: Single wall housing)

E. Kitchen exhaust fan, low noise type (Type B: Motor positioned away from air flow, D: Double wall insulation)

◆認(rèn)證和規(guī)范

Certificates and regulations

SDB箱式風(fēng)機經(jīng)‘國家固定滅火系統(tǒng)和耐火構(gòu)件質(zhì)量監(jiān)督中心’檢驗，符合標(biāo)準(zhǔn)要求。按照《消防排煙風(fēng)機耐高溫試驗方法》檢驗，主風(fēng)道介質(zhì)溫度為280攝氏度連續(xù)運行30分鐘以上，符合耐高溫性能要求。

SDB箱式風(fēng)機符合國際《汽車庫，修車庫，停車庫設(shè)計防火規(guī)范》的需要，可作為上述場合機械排煙和通風(fēng)使用。

SDB fans are tested by the “China National Fixed Fire Fighting System and Fire Resistant Components Quality inspection and Testing Center”. The fan typical performance is approved in compliance with the “General Usage Centrifugal Fan Technical Specidication”(China Nation Standard GB/T13275-91).The Fans are also tested according to the China Standard GA211-1999”Fire Fighting Smoke Removal Fan High Temperature Testing Method”, run continuously over 30 minutes at a main air duct temperature of 280c.The Fan are certified to resist high temperatures.

SDB fans comply with the China Nation Standard GB50067-97(“Codes of Fire Fighting Design of Garage/Car

Repairing facilities/parking lot”)

◆可靠的選型規(guī)范

SDB產(chǎn)品根據(jù)‘前彎葉片’和‘后向葉片’葉輪類型的不同特性，僅使用各自性能優(yōu)良的部分工作區(qū)域。在產(chǎn)品設(shè)計中已經(jīng)進(jìn)行了優(yōu)化，提高了選型質(zhì)量，每條性能曲線去掉了兩端不良部分，避免了低效率及喘振區(qū)域。

Model selection quality improved

Factory optimized design :model selection quality improved COOK has identified different characteristics between the forward curved and the backward inclined wheels, its designs are based on those working areas with optimal performance ,to maximize the fans performance Scope ,reduce the risk of inappropriate model application, and improve the model selection process. Both ends of the performance curve (of either low efficiency or surge )have been eliminated from the design process, with the remaining area fully described by 6 working points .This further enhances the reliability and precision of the model selection.

◆千變?nèi)f化的搭配選擇

SDB箱式風(fēng)機為客戶提供了多種配置，可根據(jù)客戶要求的性能特點，實際用途，現(xiàn)場情況，及資金情況自主選擇配置。如決定電機位置，箱體消聲級別，用何種材料等等，以最適合的搭配方式來選擇最滿意的產(chǎn)品。

More benefit for customer

SDB offers a number of different fan configurations, to cater for different customer requirements. Customers may consider such factors as motor position, acoustic insulation type and housing material on the basis of Different performance and application requirements, or site-specific demands as well as total budget. DIY (Do it yourself) flexibility in the fans configuration adds value to the customers investment.

◆優(yōu)質(zhì)的電機選擇

電機噪聲是風(fēng)機整體噪音中重要的部分，因此電機選擇十分嚴(yán)格，庫克風(fēng)機所選電機均為國內(nèi)外知名廠家產(chǎn)品，并使用優(yōu)質(zhì)軸承，從而保證了電機的低噪聲。

Critical motor selection

As the level of noise generated by the motor is critical, COOK carefully selects the motors. We work with well known motor suppliers and use only imported bearings inside the motor to ensure the motor noise level is minimized and falls within the recongnized COOK range. For two -speed motor, the high/low power combination is more suitable for fan application.