A, fume hood flue common sense
1. range hood: For ordinary flue, the developer will reserve a headwind plate (to prevent other people's smoke from pouring into your home). At first, it was in a lower position. Because the tiles are to be removed, they will move to the gusset plate after being pasted. So, don't forget to install the headwind board. Buy one if you lose it.
2. The range hood is at most 15CM or 16CM, 16CM or 18CM! Original headwind board 15CM, the diameter of range hood is variable, so don't worry. If you buy it in the future, just choose 15 1665438. Range hood 15 European 16CM, Tai Fang, Shuaikang, the boss is 18 CM. The ultimate goal of public flue is to prevent smoke from gushing out.
2. The current gas water heaters are forced-discharge type, and the flue is necessary. 6CM in size of the hole and 8CM in Northeast China. Because it's windy there, it should be thicker. If the gas water heater is installed outdoors, holes can also be punched under the pinch plate, and the stainless steel smoke exhaust pipe is still very beautiful. Because the flue is above the pinch plate, it is strongly recommended to use aluminum pinch plate for easy disassembly and maintenance.
Second, the fume hood flue matters needing attention
1. Check whether the outlet of the flue, that is, the inlet of the hood hose, has been changed from the front of the flue to the side during the transformation. Because the side width of the side auxiliary flue is only 100mm, which is much narrower than the big side. According to the aerodynamic principle, you change the air inlet to the position of the auxiliary flue, which reduces the rising speed of air discharge and increases the resistance of discharge. When there is convection between the air in your kitchen and the flue, the air pressure in the kitchen will be lower than that in the flue. Even if your range hood doesn't work, the same result will inevitably lead to smoke backflow. It must be changed back.
2. Whether the kitchen door or window is open. If the windows of your range hood don't open when working, air convection can't be formed, resulting in that the lampblack can't be discharged at all; When the range hood is not working, if you don't open the window, the air pressure in your kitchen will be less than that in the flue, and it is inevitable that the lampblack from other people's homes will flow back to your home.
3. Check whether the power of your range hood reaches 500m3/h, if not, please replace it in time.
4. Check whether the fume emission of the building where you live (according to the design regulations, the fume emission should be discharged separately) is received by the flue of the residential kitchen. If so, then I congratulate you, the oil fume will always flow back to your home. Because the power of the catering range hood is 2000m3/h, both the discharge and the discharge speed are faster than your range hood.
5. Check whether the smoke inlet of the upstairs and downstairs residents in your vertical range is open or not equipped with a check valve, especially whether the smoke inlet of the upstairs residents is open. Failure to install a check valve will directly lead to the backflow of lampblack from your downstairs to your home.
The above related contents are shared by us. Here, I sincerely thank every reader for their strong support. Your reading has given us the greatest motivation. I hope we can have a good reference in this situation in the future.