飯店廚房排煙罩使用說明：一般用于廚房的風機排煙罩有會帶走廚房大量空氣，油煙罩補風風機-抽油煙時，需向廚房補充空氣，該機提供約占排油煙風量的80%。工作區新風預處理風機-為廚房工作區（人員工作位置）提供經過預處理的新風。該機提供約占排油煙風量的20%排油煙風機-排去煮食區油煙罩的油氣。
Instructions for the use of the smoke exhaust hood in the kitchen of the hotel: generally, the fan smoke exhaust hood used in the kitchen will take a large amount of air from the kitchen. The oil smoke hood will supplement the air fan - when the oil smoke is extracted, it needs to supplement the air to the kitchen, which provides about 80% of the air volume of the oil smoke. Fresh air pre-treatment fan in the working area - provide pretreated fresh air for the kitchen working area (personnel working position). This machine provides an oil fume exhaust fan which accounts for about 20% of the air volume of the oil fume exhaust - the oil and gas to the oil fume hood in the cooking area.
廚房排煙風機排煙罩除消防排煙風機管道的防火閥之外，考慮到廚房高溫工作的原因。其余風機管道的防火閥建議安裝150℃防火閥（與平時普通風機管道裝置的70℃略有不同）,需關閉其余所有風機（消防補風靠外窗及門隙等地方進風）當消防排煙風機動作時；當開啟“排油煙風機”時，需同時（聯動）開啟“油煙罩補風風機”與“工作區新風預處理風機”。
In addition to the fire damper of the fire and smoke exhaust fan pipe, the kitchen smoke exhaust fan smoke exhaust hood takes into account the high temperature operation of the kitchen. 150 ℃ fire damper is recommended to be installed for the fire damper of other fan pipes (slightly different from the normal 70 ℃ of the ordinary fan pipe device), and all other fans need to be closed (air supply for fire fighting is close to the outer window, door gap and other places) when the fire smoke exhaust fan operates; When the "lampblack exhaust fan" is turned on, the "lampblack hood make-up fan" and "fresh air pretreatment fan in the working area" should be turned on simultaneously (in linkage).
廚房排煙風機排煙罩的排煙管道未端需要設置排煙閥，排煙風機排煙罩與排煙管道連接處設置排煙防火閥。要注意排煙閥與排煙防火閥是功能完全不同的設備。
Smoke exhaust damper shall be set at the end of the smoke exhaust duct of the kitchen smoke exhaust fan smoke exhaust hood, and smoke exhaust fire damper shall be set at the connection between the smoke exhaust hood of the smoke exhaust fan and the smoke exhaust duct. It should be noted that smoke damper and smoke fire damper are equipment with completely different functions.
排煙閥平時常關，火災時開，與報警主機聯動，開啟條件是自動報警系統發生火警（探測器報警）消防報警主機置于自動狀態，排煙閥自動開啟，聯動排煙風機啟動。排煙防火閥是平時常開，火災時也是開啟狀態，但當煙氣溫度達到280℃時，排煙防火閥自動關閉，聯動已經開啟的風機停止運行。
The smoke exhaust valve is normally closed and opened in case of fire. It is linked with the alarm host. The opening condition is that the fire alarm host of the automatic alarm system (detector alarm) is in the automatic state, the smoke exhaust valve is automatically opened, and the linkage smoke exhaust fan is started. The smoke exhaust fire damper is normally open at ordinary times and is also open in case of fire. However, when the smoke temperature reaches 280 ℃, the smoke exhaust fire damper will automatically close and the fan that has been opened will stop running.
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