廚房油煙通風管道安裝

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主排氣管通風面積不夠

Insufficient ventilation area of the main exhaust pipe

依據(jù)工程經(jīng)驗，深圳廚房油煙通風管道安裝的主排煙管道里的風力不可超出15m/s，不然運作一段時間后會阻塞排風系統(tǒng)。在餐飲油煙凈化器的運轉(zhuǎn)在實踐中，絕大多數(shù)情況下，排煙管道因通風面積不足阻塞，管中氣體流速超過15m/s。

Based on engineering experience, the wind force in the main smoke exhaust duct installed in the oil fume ventilation duct of Shenzhen kitchen should not exceed 15m/s, otherwise the exhaust system will be blocked after operation for a period of time. In practice, in the operation of restaurant oil fume purifiers, in the vast majority of cases, the exhaust pipe is blocked due to insufficient ventilation area, and the gas flow rate in the pipe exceeds 15m/s.

管道的橫截面積減少

Reduction in cross-sectional area of pipelines

當排煙管道越過建筑梁時，自然通風的橫截面積縮小，橫截面積里的摩擦阻力擴大，氣旋流暢。

When the smoke exhaust duct crosses the building beam, the cross-sectional area of natural ventilation decreases, the frictional resistance in the cross-sectional area increases, and the cyclone flows smoothly.

用后排氣管堆積

Stacking of exhaust pipes after use

當排氣管越過建筑梁或繞開另一臺管道時，一段排氣管將小于全部排氣管的平面圖。應用一段時間后，油水混合物會堆積在排氣管下邊，直接關(guān)系排煙系統(tǒng)的順利開展。

When the exhaust pipe crosses a building beam or bypasses another pipeline, one section of the exhaust pipe will be smaller than the plan view of all exhaust pipes. After a period of application, the oil-water mixture will accumulate under the exhaust pipe, directly affecting the smooth operation of the smoke exhaust system.

下一層排煙系統(tǒng)受阻

The smoke exhaust system on the next floor is blocked

來自各式各樣房間的餐廳廚房煙塵由同一個主管道排出。在接近出口地面上，廚房里的煙比較合適，但相對較低的廚房里面，煙并不通暢。

The smoke and dust from restaurants and kitchens from various rooms are discharged through the same main pipeline. On the ground near the exit, the smoke in the kitchen is more suitable, but in relatively low kitchens, the smoke is not smooth.

更好使用排風扇

It is best to use an exhaust fan

針對濃煙比較多的餐廳廚房，提議與此同時配置一臺排風扇。常見的深圳廚房油煙通風管道安裝的排風設備有三種：軸流式風機、箱式風機和離心通風機。

For restaurants and kitchens with high levels of smoke, it is proposed to install an exhaust fan at the same time. There are three types of exhaust equipment commonly installed in Shenzhen kitchen oil fume ventilation ducts: axial flow fans, box fans, and centrifugal fans.

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