一、副煙道務(wù)必保留
First, the auxiliary flue must be retained
每家的廚房里都有煙道，同時(shí)煙道也有主副之分，主煙道貫穿整個(gè)樓體，而副煙道是相對(duì)獨(dú)立的。一般家里的油煙會(huì)先到副煙道里，然后再通過隔板上的孔進(jìn)入主煙道，這樣可保證每戶的油煙是隔離開來的。而如果將副煙道直接連接主煙道，就會(huì)由于壓力過低而導(dǎo)致倒煙或串煙現(xiàn)象。
Each household has a flue in the kitchen, and there are main and auxiliary points in the flue. The main flue runs through the building, while the auxiliary flue is relatively independent. Generally, the lampblack in the family will go to the auxiliary flue first, then enter the main flue through the hole on the clapboard, so that the smoke and fume of every household is isolated. And if the side flue is directly connected with the main flue, will lead to smoke or smoke phenomenon due to low pressure.
二、施工細(xì)節(jié)要注意
Two. Attention should be paid to the details of the construction
，選擇抽油煙機(jī)安裝的位置十分重要。管道越短越好。一些合肥排煙管道業(yè)主會(huì)為了美觀，把管道拉得比較長，這樣一來，關(guān)掉油煙機(jī)后，管道里還會(huì)集聚很多油煙排不出去，再倒回室內(nèi)。另外，為了不破壞原有的主副煙道，其開口方向不是隨意可以改的，一定要打在副煙道里面。
First of all, choosing the location of hood is very important. The shorter the better the pipe. Some Hefei smoke pipeline owners will pull the pipeline longer for the sake of beauty, so that after closing the oil smoke machine, the pipe will gather a lot of oil smoke and do not go out and back to the room. In addition, in order not to destroy the original main and auxiliary flue, its opening direction is not optional, it must be played in the auxiliary flue.
三、窗戶排煙注意

Three, window smoking attention safety
一些業(yè)主為了避免串煙問題，放棄原有煙道，直接在窗戶上開孔排煙，這樣做是可以的，但有幾點(diǎn)需要注意。
In order to avoid smoking problems, some owners abandon the original flue and smoke directly through the windows. This is acceptable, but there are several points to note.
在窗戶或墻面開洞之前一定要經(jīng)過物業(yè)的同意；其次注意問題，一般排煙管末端是金屬材質(zhì)的，如果開的洞太小，金屬傳熱可能會(huì)使玻璃炸裂，傷及行人，且煙管通向窗外，強(qiáng)勁的北風(fēng)對(duì)著吹會(huì)導(dǎo)致油煙倒灌。好將管道伸出去以后把管道往下窩，這樣還可以避免下雨時(shí)雨水流進(jìn)管道，并把風(fēng)擋在外面。
First of all, before the window or wall surface opening must be approved by the property; secondly, attention to safety issues, the end of the general exhaust pipe is metal material, if the opening of the hole is too small, metal heat transfer may blow up the glass, injury to pedestrians, and smoke pipe to the window, strong north wind will lead to oil fume inversion. It is better to put the pipe out and pipe down, so that it can avoid rain and water into the pipeline when it rains, and put the windshield outside.
南陽排煙管道
Nanyang exhaust pipe
四、止逆閥門勤更換
Four, check and reverse valve frequently change
如果已經(jīng)把副煙道拆除，或是需要防止倒煙的效果更好，那么使用煙道止逆閥。一般情況下，油煙機(jī)的止逆閥效果不是很明顯，而在煙道安裝止逆閥可以保護(hù)油煙機(jī)，使煙道里的煙不會(huì)向管道和抽油煙機(jī)內(nèi)倒灌。不過，安裝止逆閥后要定期清洗，否則會(huì)使止逆閥呈打開狀態(tài)，失去效果，而且煙道止逆閥好兩年左右就更換一次。
If you have the side flue removed, or need to better prevent smoke, then use flue non-return valve. In general, the effect of the control valve is not very obvious, and the installation of the counter valve in the flue can protect the oil fume machine, so that the smoke in the flue will not be poured into the pipe and the smoke pump. However, the installation of the counter valve should be cleaned regularly, otherwise the reverse valve will be open, the effect is lost, and the best replacement of the pipe check valve is about two years.
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