1. The ventilation area of main exhaust pipe is insufficient

 

根據(jù)工程經(jīng)驗，排煙主管中的風速不能超過15m / s，否則經(jīng)過一段時間的使用后很容易造成排煙系統(tǒng)暢通。 在油煙凈化器的操作實踐中，多數(shù)情況是由于排煙管通風面積不足引起的。 管道中氣體的流速高于15m / s。

 

According to the engineering experience, the wind speed in the main smoke exhaust pipe should not exceed 15m / s, otherwise it is easy to make the smoke exhaust system unblocked after a period of use. In the operation practice of lampblack purifier, most cases are caused by insufficient ventilation area of exhaust pipe. The gas velocity in the pipeline is higher than 15m / s.

 

2.管子的截面積變小

 

2. The cross-sectional area of the pipe becomes smaller

 

排煙管道必須穿過建筑梁，以減小管道通風的橫截面積，并且橫截面上的阻力增加，從而導致氣流不順暢。

 

The smoke exhaust duct must pass through the building beam to reduce the cross-sectional area of the duct ventilation, and the resistance on the cross-section increases, resulting in poor airflow.

 

yang陽通風排氣管

 

Yang positive ventilation exhaust pipe

 

3.使用排氣管后的堆積物

 

3. Accumulation after using exhaust pipe

 

當排煙管穿過建筑梁或避開其他設備管道時，排煙管的一部分將低于整個排煙管的平面。 使用一段時間后，油水混合物會積聚在排煙管介質(zhì)的下部，直接影響排煙的順暢度。

 

When the smoke exhaust pipe passes through the building beam or avoids other equipment pipes, a part of the smoke exhaust pipe will be lower than the plane of the whole smoke exhaust pipe. After using for a period of time, the oil-water mixture will accumulate in the lower part of the exhaust pipe medium, which directly affects the smoothness of smoke exhaust.

 

4.低水平排煙不順暢

 

4. Low level smoke exhaust is not smooth

 

來自不同樓層的廚房油煙通過同一主管排出。 出口附近的廚房排煙效果更好，而較低樓層的廚房則不平滑。

 

Kitchen fumes from different floors are discharged through the same main pipe. The kitchen near the exit has better smoke exhaust effect, while the kitchen on the lower floor is not smooth.

 

5.建議裝備排氣扇

 

5. It is recommended to equip exhaust fan

 

對于油煙較大的廚房，建議還配備排煙風扇。 常用的排煙風機包括軸流風機，風箱和離心風機三種。

 

For kitchens with large cooking fume, it is recommended to provide smoke exhaust fans. The commonly used exhaust fans include axial flow fan, bellows and centrifugal fan.