How to install chimneys to prevent smoke pouring?

Question 1: How to install a chimney to prevent smoke from flowing backwards, reduce elbows, increase the height, and install a rain cap on it.

Question 2: How to solve the problem of black smoke from the chimney of the stove? Is the south wind blowing in because the wall on the south side of the chimney leaks air? . .

Question 3: How to solve the problem of smoking in the chimney of household stoves? The chimney of the stove should be equipped with a wind cap!

Question 4: Why is it said that spring is the high incidence of pipe pouring? After the Spring Festival, it means that the severe winter has passed and there is less north wind. Most friends who use stoves to keep warm think that the phenomenon of chimney smoke pouring should be over, and there is no need to worry about gas poisoning caused by chimney smoke pouring. This is all wet! As we all know, most houses face south, and the smoke outlet of the chimney also faces south, which is also a way for people to avoid the chimney from pouring smoke because of the frequent north wind blowing in winter. But have we thought about it? From late winter to spring or later, the change of wind direction is extremely irregular during this period. Sometimes the north wind blows, sometimes the south wind blows, sometimes the north wind blows at midnight, and the south wind turns at midnight. When the wind direction changes but the exit direction of the chimney remains the same, the chimney smoke may escape from the north wind, but it cannot escape from the south wind. Moreover, there are many people who have not installed any windproof facilities at the exit of the chimney, so the problem of preventing the chimney from falling down at this time is more critical. Relevant experts remind that there will be many gas poisoning accidents at this time of the year, and the group is large. For example, the year before last, Jinan "turned north to south overnight, and 100 people were poisoned by gas" was an obvious example. Therefore, I would like to remind everyone that we must care for life, do a good job in the prevention of gas poisoning, and do it carefully and thoroughly. If you use the stove for one day, you must prevent gas poisoning for one day. Don't take it lightly. Finally, the latest product "chimney windproof cap" made in Beijing is introduced to prevent the chimney from falling down.

Question 5: How to solve the problem of chimney dumping? Thank you. The simplest way is to install a smoke exhaust machine on the chimney.

Question 6: Why does the chimney still pour smoke after installing the chimney windproof cap? This is a problem caused by many reasons, which is now explained in three parts:

Causes of indoor exhaust phenomenon:

Symptoms: The obvious manifestation of this phenomenon is that the chimney pours smoke when it is not windy, and the chimney smokes normally when it is windy, but the smoke does not pour when the door or window is open. First of all, it is explained that this is the phenomenon of "indoor negative pressure" caused by the indoor air pressure being lower than the outdoor air pressure. According to this principle, we will easily find out the reason for the low indoor air pressure. Such as public flue, floor drain, exhaust fan and other household facilities. Think about it: the exhaust ports of public flue and floor drain are generally on the roof, with high position and large pumping force. Because the indoor air is continuously vacuumized for 24 hours and is pumped into negative pressure, the room is tightly closed, and the air can only enter from the chimney. Solution: According to the situation, just close these pumping holes in some ways.

Causes of outdoor building environment:

Symptoms: The obvious manifestation of this phenomenon is that the chimney pours smoke when there is wind, and the chimney smokes normally when there is no wind. First of all, the wind cap is not afraid of the wind, and no matter how strong the wind is, it will not enter the chimney through the wind cap and cause the smoke to fall back. But I'm afraid the wind can't leave here because of all kinds of dead angles formed by the building. When the wind is still advancing behind, this dead corner will form a high-pressure area where the wind gathers. If the wind cap is located in this high pressure area, even the best wind cap can't resist the high pressure formed by the wind, and the chimney will still fall with the wind. Solution: Please note that the hood is in the area where the wind cannot spread and stop flowing. Only by heightening or lengthening the chimney, the installation position of the hood is separated from this high pressure area.

Natural causes of chimney inversion:

In the case of heavy fog, the outdoor air pressure caused by air density is higher than the indoor air pressure, so the smoke in this chimney cannot be discharged. At this time, the phenomenon of gas poisoning caused by people is very large. Although this situation is rare, it is difficult to prevent, so we should take precautions in foggy days.

Question 7: How to prevent smoke from the domestic heating stove? You live in a bungalow. If so, the chimney must be higher than the roof, so there will be no wind and no smoke in any weather. In addition, when you start the furnace, the door of the furnace must be closed as tightly as possible, so that the suction will be greater than the suction of the furnace. Otherwise, the suction will leak from the stove, and the stove will naturally lose its suction.

Question 8: What causes the chimney to smoke? How to solve it? When the chimney sticks out of the house, add a curved neck with the mouth facing down. Or put a hood on the chimney outside the house.

Question 9: How to install the chimney windproof cap to make it play its greatest role; How to correctly install the chimney windproof cap to make it play its greatest role;

1, buy mature products instead of making them yourself.

2. The three-piece civil chimney windproof cap is adopted, and the Bernoulli principle in fluid mechanics is skillfully adopted twice in structure, which effectively avoids the cross-wind backflow in different wind directions and maximizes the effect.

3. The windproof cap is best installed at the top of the vertical chimney, that is, on the chimney directly below, which can be higher than the eaves 1 m or more.

4. Whether the wind cap is installed vertically or horizontally, if it cannot be higher than the eaves, it must be 60 cm away from the wall.

5. The joint between the windproof cap and the chimney must be sealed, otherwise the pumping force generated by the windproof cap will be lost.

6. Because the wind-proof cap will be affected by environmental conditions in use, in order to ensure its own function and adaptation to environmental conditions, the room using the cooker must be equipped with a "wind bucket" to cooperate with the wind-proof cap to avoid gas poisoning accidents more safely.