选择带油烟机安装的位置是非常重要的。确保管道尽可能短。一些业主会为了美观，把水管拖得相当长，所以来，关掉油烟机后，还会把很多油烟排在水管里不出去，再倒回室内。
First of all, it is very important to choose the installation location of the hood. Make sure the pipeline is as short as possible. Some owners will drag the water pipe quite long in order to be beautiful, so after turning off the lampblack machine, they will also put a lot of lampblack in the water pipe, and then pour it back indoors.
另外，为不破坏原有主二次烟道，其开启方向不可随意改变，必须击中二次烟道内。业主不能根据自己的喜好随意改变。但是，烟道内的孔可以扩大，但要注意不要损坏二次烟道的挡板。
In addition, in order not to destroy the original primary and secondary flue, the opening direction can not be changed at will, and must hit the secondary flue. Owners can not change at will according to their preferences. However, the holes in the flue can be enlarged, but care should be taken not to damage the baffle of the secondary flue.
山东饭店厨房排烟罩设计安装不合理，经常会导致厨房排烟不畅通，直接影响油烟净化器的使用，主要原因如下:
The unreasonable design and installation of kitchen smoke hood in Shandong Hotel often leads to the unobstructed exhaust of kitchen smoke, which directly affects the use of the lampblack purifier. The main reasons are as follows:
1. 主烟罩通风面积不足
1. insufficient ventilation area of main hood
快速排烟，防止厨房烟罩安装异味
Quick smoke exhaust to prevent odor from kitchen hood installation
根据工程经验，排烟总管风速不能超过15m/s，否则运行一段时间后排烟系统会被堵塞。在油烟净化器的运行实践中，大多数情况下是由于抽油烟机通风面积不足造成的，管道内气体流量在15m/s以上。
According to the engineering experience, the air speed of the main exhaust pipe should not exceed 15 m/s, otherwise the exhaust system will be blocked after a period of operation. In the operation practice of lampblack purifier, most of the cases are caused by insufficient ventilation area of lampblack extractor, and the gas flow rate in the pipeline is more than 15 m/s.
2. 管道横截面积变小
2. Reduction of cross-sectional area of pipeline
快速排烟，防止厨房烟罩安装异味
Quick smoke exhaust to prevent odor from kitchen hood installation
由于排烟罩必须通过建筑梁，管道通风的截面面积变小，截面阻力增大，导致气流受阻。
Because the exhaust hood must pass through the building beam, the cross-section area of the duct ventilation becomes smaller and the cross-section resistance increases, which results in the air flow obstruction.
三、使用后排水管道积存
3. Storage of drainage pipes after use
快速排烟，防止厨房烟罩安装异味
Quick smoke exhaust to prevent odor from kitchen hood installation
当排烟罩穿过建筑梁或避开其他设备管道时，排烟罩的某一段将低于整个排烟罩平面。使用一段时间后，油水混合物会在烟机下部积聚，直接影响烟气的顺畅排出。
When the exhaust hood passes through the building beam or avoids other equipment pipelines, one section of the exhaust hood will be lower than the whole exhaust hood plane. After using for a period of time, oil-water mixture will accumulate in the lower part of the flue gas machine, directly affecting the smooth discharge of flue gas.
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