Chimney

Chimneys are divided on the wall (extending inland capital brick walls of the building), the root (in the form of a detached riser pipe near the furnace) and the shell-(installed directly on the oven). Most often constructed shell-tube, but arrange them in furnaces with walls in quarter brick can not, because the weight of the pipe could collapse oven.
Above the roof, chimneys pins so that they are as close as possible to the ridge.

I bore pipes complied with this requirement depends on the location of the furnace room. Chimney height is determined by the distance at which it is separated from the ridge. Head tube output at 0.5 m above the ridge in the event that it is separated from the ridge by no more than 1.5 meters head by output to a level ridge when it is located at a distance from the ridge of 1.5-3 m, and below the ridge - at a distance of more than 3 m
In all cases, the pipe must rise above the roof at least 0.5 m if a brick chimney comes close to the high wall or trees with dense foliage, its building up of steel, asbestos-cement or ceramic tube. Accession to the total number of furnaces chimney should be done so as not to disrupt the draft. In exceptional cases, a connection to one of two furnaces chimney located on the same floor. To do this, perform the general channel crosscuts, that is erected inside the channel wall height from 750 mm to 1000 mm, or attach the furnace to the chimney at different levels. This is in order to avoid oncoming traffic flue gases.
Size of the total smoke channel must be at least 140 x 270 mm. If the root of a pipe or wall chimneys removed from the oven, it is connected to the chimney with the rocker arm, or pipe (horizontal air holes), the brick in a box of roofing steel and supported ravine of steel angles, which are based on one end wall with chimneys or root pipe, and the other - on the wall of the furnace.
Sleeve length should not exceed 2 m sides and bottom of the sleeves spread of brick on edge (in the quarter-brick), and the upper arms - two rows of bricks laid flat with careful ligation of sutures. Soot from the sleeve to make it the clean door. Rocker arm set to rise in the direction of movement of the gases at an angle of about 100, to improve traction.
The distance between the top tube and the ceiling must be at least 0.4 m, if the ceiling is protected from fire (plastered, lined with two layers of felt or asbestos, and on them with steel roof), and not less than 0.5 m in unprotected ceiling. The same conditions are met in the construction of pipe around the walls and partitions. Lay the pipe in the attic is not recommended due to the increased likelihood of condensation and fire. In addition, the tubes often reduce cravings in the oven.
Smoke channels, depending on the capacity of ovens come in different sizes: 130 x 130 mm with a heat furnace to 3000 kcal / h, 130 x 190 mm with a heat furnace to 4500 kcal / h and 130 x 260 mm with a heat furnace to 6000 kcal / h with two furnaces in the day, other sizes are acceptable and which are found in different furnaces.
If used for laying pipes crushed brick, it should be laid simply cut or punctured side out and smooth - inside the channel. Usually the tube is placed in thickness half brick. It can be completely put on a clay solution, but for strength better if the roof is performed on a mixed masonry cement mortar or grout clean. Push-tube mounted on the furnace, which is not the clutch is adjusted to attic floor for 2-3 or more rows. Here begins laying neck furnace in which it is useful to put the latch. In one series to overlap begins to broaden masonry, creating a thicker covering a breaker, or fuzz, with a wall thickness of 0.25 m or 0.4 m, that is, 1 or 1 1/2 bricks.
Puts it in a few rows in height. Fuzz above, which should be thick enough
To prevent the overlap of at least three rows of masonry, in the attic space is risers - flat part of the pipe, reaching to the roof. Above the roof of the second of the fuzz, or otter, which is 60-100 mm above the roof overhangs on all sides of the pipe. This distinctive hood removes the roof running down the water pipe in the rain or snow melt.
If not, the water will flow through the riser, destroying it. Otters put up the neck tube of the same size as the riser. Further broadens masonry, forming a well head pipe.
To protect the pipes from breaking her set cap or wind vanes, for example from a roofing steel, which in addition to protecting pipes also improves traction in furnaces. Protruding above the roof fuzz recommended to cover the roof with steel or coat with cement mortar, providing some surface slope for draining water.
Tube best cement-lime plaster or cement mortar and whitewash. Plastered tubes are much longer, and the whitewashing clearly visible cracks that must be sealed. The figure shows the masonry fuzz and otter pipe with smoke channel size of 140 x 270 mm (Figure 93).

Труба

Дымовая труба


Fig. 93. Pipe: a - major parts b - poryadovki, 1-7 - neck and fuzz; 1-10 - otter.



Masonry fuzz starts away from overlapping furnace, which is installed with bore pipe. This distance can be several courses of masonry, often called the neck of the furnace.
Masonry in the following order.
1st row - neck pipe, made of five bricks flues 140 x 270 mm (in 1 brick) and external dimensions 510 x 380 mm.
2nd row - beginning fuzz with outside dimensions 590 x 450 mm, for this size is inserted into the masonry Quartet and half bricks. Inside the fuzz to limit the size of the channel insert plates crushed brick thickness of 30-40 mm.
These inserts of different thickness do in laying the time, the section of the channel remains unchanged.
Third series has external dimensions of 650 x 510 mm, put in the channel plate thickness of about 60 mm.
4th series of size 710 x 570 mm, put bricks in the channel thickness of 90-100 mm.
5-6-th series put out a full brick, strictly observing the dressing stitches. If necessary, increase the height of the clutch fuzz repeat these series.
7th row - start laying the riser pipe in 5 bricks. Riser lead out to 1-2 rows above the roof, and then spread the otter.
Otter put on the riser with careful ligation of sutures. In this embodiment, masonry consists of nine series. Each row extends beyond the riser by a quarter brick. Otters are inserted inside a brick plate thickness that without change to keep the size of the channel.
1st row is placed in 5 bricks, it is a continuation of the riser.
2nd row only increases the length of the clutch on the fourth brick in the two sides, which have to insert half and trehchetvertku, and in the channel - a plate of brick.
Third row is placed so that its length remains the same, and the width of one side (the bottom of the otter) increases by half a brick to form overhang.
4th row put with increasing overhang the sides.
5-7th rows are placed so as to overhang the sides lengthened to a size 2 1/2 bricks.
8-9th rows complete laying open overhang from the last, the fourth side.
10th row - laying neck pipe - runs as the riser of 5 bricks.
All out cervix tubes begin to tip, masonry which is not difficult, because the method is the same as the fuzz. In the above embodiment, laying otters should pay attention to the fact that her right side, starting from the 2nd row, widened by 1/4 brick masonry compared to the riser. To ensure the flow of water from the tube tip and otters, and thus protect them from rapid destruction, they laid cement, level it up so that it has a slope outward from the channel, and smooth down. Fuzz brick masonry - it is rather complicated. So sometimes they are made of reinforced concrete or concrete, but the latter is less robust.
Otter is also sometimes done in the form of a flat concrete slab thickness of 20 mm or s0-slab slopes (with a bias). Plate should extend beyond the pipe (hang) on ​​all sides by at least 100 mm. The bottom surface of the otter necessarily suit drip - groove depth of 5 mm at a distance of 10-15 mm from the edge of the slab. Drip edge protects the lower part of the pipe from getting wet in the rain, and rainwater into the attic. Brick chimneys at 100 mm above and below the roof should be plastered cement-lime mortar.
Pipes must be at least one, and preferably two times a year to inspect and defects that immediately correct them. Often the construction of furnaces, especially in a garden house, instead of brick put asbestos or ceramic pipes. Opening a pipe must match the area Flue stove. They are durable, lightweight and without seams. They can be installed on masonry and concrete slab on a simple form, but it is best to manufacture a special plate, where a ditch or pipe coupling.
Plate under a concrete pipe can do, but better reinforced concrete with a minimum thickness of 50 mm. It can be simple or with flanges up to 400-500 mm, ie the thickness of the floor, forming a box that is filled with bricks, dry slag, sand, dry ground without plant impurities, etc. Otter to perform such pipe circular or square, solid or team of two halves held together after the installation of the pipe. To otter could not fall down the pipe underneath is coated cement. At the top of the pipe is best to wear a cap. Pipes should be firmly reinforce the attic, so they could not hesitate. The lack of such pipes - thin walls that heat up quickly, but just as quickly and cool down, which promotes the formation of condensate.
In the construction of the furnace should pay attention to insulation of the attic space and there are pipes. This is a prerequisite for a successful fight against condensation. There are several ways to pipe insulation. The easiest and least time-consuming - to wrap the pipe with mats made of glass wool and slag wool or fiberglass. In the absence of these materials pipes insulated with a layer of plaster, covered cinder slabs, backfilling around the pipe sand, slag, dry earth and other insulating materials.
For plastering using lime-slag solution with a small amount of cement. The plaster does not fall off, around the pipe at a distance of 20 mm Z0 suit fittings, which are mounted on top of a metal grid. Mesh and rebar filled pasty clay solution, which solidify to form strong enough insulating coating thickness of 50-70 mm. Plastering done in the summer. Breeze-plates can be flat (for brick chimneys) or segmental (for cement pipes) board thickness - 50-70 mm. Finished boards impose on the pipe and fasten wire; seams thoroughly coat with cement mortar. Facing to be adjacent to the pipe close or defend it from a distance. In this case, the space between the liner and the pipe poured dry slag.
Sometimes pipes insulated with panels of steel or asbestos roofing sheets (mounted on wooden frames), which are placed at a distance of 50-100 mm from the surface of the tube, and formed between the pipe and shield the space to sleep slag, dry earth, and so on pipe insulation should be checked regularly, and the defects found immediately removed.

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