厨房排气管安装不合理的原因是什么？

 

What is the reason of unreasonable installation of kitchen exhaust pipe?

 

厨房排气管的设计和安装不合理，常常导致厨房排气的排气直接影响油烟净化器的使用。 主要原因是什么？

 

The unreasonable design and installation of kitchen exhaust pipe often leads to the exhaust of kitchen exhaust, which directly affects the use of lampblack purifier. What are the main reasons?

 

1.主排气管的通风面积不足

1. The ventilation area of main exhaust pipe is insufficient

 

根据工程经验，排烟主管中的风速不能超过15m / s，否则经过一段时间的使用后很容易造成排烟系统畅通。 在油烟净化器的操作实践中，多数情况是由于排烟管通风面积不足引起的。 管道中气体的流速高于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.管子的截面积变小

 

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

 

排烟管道必须穿过建筑梁，以减小管道通风的横截面积，并且横截面上的阻力增加，从而导致气流不顺畅。

 

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阳通风排气管

 

Yang positive ventilation exhaust pipe

 

3.使用排气管后的堆积物

 

3. Accumulation after using exhaust pipe

 

当排烟管穿过建筑梁或避开其他设备管道时，排烟管的一部分将低于整个排烟管的平面。 使用一段时间后，油水混合物会积聚在排烟管介质的下部，直接影响排烟的顺畅度。

 

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.低水平排烟不顺畅

 

4. Low level smoke exhaust is not smooth

 

来自不同楼层的厨房油烟通过同一主管排出。 出口附近的厨房排烟效果更好，而较低楼层的厨房则不平滑。

 

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.建议装备排气扇

 

5. It is recommended to equip exhaust fan

 

对于油烟较大的厨房，建议还配备排烟风扇。 常用的排烟风机包括轴流风机，风箱和离心风机三种。

 

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.