Exhaust flue

Chapter I

GOOD MORNING ALL!

Evacuation of combustion gases and their propagation in the atmosphere will be such that the mixture to produce a concentration of contaminants below acceptable limits.

Chimney

Chimney runs through the normative design and execution. Chimney section, determine the maximum total boiler exhaust pipe and check the worst operating conditions.

Channels smoke mounts upward slope minimum of 10% to cart. The connections between the boiler and smoke channels provide circulation control devices, expansion and compensation parts manhole chimney etanse.Un good has small thermal inertia. Stacks for boilers that run on gas or liquid fuel will be provided with valves for explosion. Cart connecting multiple boilers is done by various sectors smoke channels and number of direction changes is minimized. The height of the chimney flue is calculated taking into account the type of flue boilers, burners type (pressurized or atmospheric) and operating conditions worst in summer. If high chimneys which can cool Gazelle, provides a variable section of stack; section decreases from base to top, this condition is necessary to maintain a constant speed as exhaust gas. Will be mandatory to avoid isolation pimples flue gas temperature drop in circulation achievement rouasi point temperature. Shopping smoke protect against lightning according to normative I20. Chimney located less than 1.5min horizontal ridge of the roof ridge exceed the minimum non-combustible roof and 1m 0.5mpentru for fuel sheath. Chimney height from the roof terrace have to be at least 1m.

Chimneys will exceed the minimum 0.5 m height of the terrace cannot elements such as attics, walls, fire.

Connecting the tubing to provide a common need for collective security device detects normal operation of extraction flue gas and boiler stops functioning in case of emergency. If wall-type boiler exhaust stack flue gas suction cup type seal is mounted with 2 ‰ slope outward. In order to not cause pollution of the interior spaces of the chimney outlet type suction cup mounts to minimum distance constructiveale building elements. Pedestrian travel towards the area where the location of the minimum height will be 1.8m suction basket. To achieve safe operation of the boiler and there is possibility of interrupting the gas supply to provide powered by fuel burning mixed gas and liquid so. Fuel plants are fitted with safety systems to eliminate the danger of fire and explosion such as blocking the fuel inlet to the lack of flame and low pressure supply . Chimney is a component of the heating system that is designed to evacuate gases from the combustion of fuel at a rate of safety. Fumes tend to rise. Cart promotes circulation resulting from the pressure difference between gas entry point into the basket and drain terminal over the roof.

Anything that restricts or prevents the rise of easy circulation and reduce gas when the boiler in good condition suffers. For such situations do not occur several conditions must be met :

1. boiler location to do so from the wall, ceiling, pillars, allowing the use of a cart as etc.sa without deviations.

2. flue downspout that is positioned between the boiler and flue have the shortest route, and with as few deviations as small angle, sloping path and by no means necessarily horizontal, connecting the chimney will be angled. Any deviation reduces circulation, increases the amount of soot deposits, there is a risk cracking basket and cleaning will be required more often.

The secret of success: the route thought to be inside the building, near the ridge top terminus building and comply with all rules PSI (Fire protection rules)

You get the best insulation, best protection against wind action and best value as heat could reach the outer surface of the chimney is kept inside the building.

Performance standards and require that the top of the chimney terminal should reach at least the ridge cladiriimai especially if the wind direction is perpendicular to the main ridge, Cart is perfectly sealed, any crack will be repaired as quickly and as accurately as possible to prevent entry into the basket of fake air circulation that can change in a negative way and may occur in the flue gas leakage and thus inhabited rooms accidents occur serious health of the building. Another condition for the proper functioning of the existing chimney is a piece of rain protection terminals and wind action, whose area of ​​evacuation will be double or more than useful section of the chimney. The existence of more portions of control and intervention depending on the length cleaning basket.

The most effective form of basket is the circular.

If other shapes are adopted corners are rounded to reduce pressure loss of circulation and deposits of soot.

Another condition is that the roughness to be as low because of excess mortar funingine.Orice deposits, metal bars or other material remaining after completion cart as many chicanes means for circulation and therefore a malfunction such material will be removed quickly imrdiat have been discovered. Shopping will be impermeable to prevent condensation on the exterior appearance or stains.

If the fuel is gaseous corrosion so condensation forms will be mandatory cart features to prevent corrosion cracks leading to gas leakage, which is very dangerous to use. So it is mandatory to use a collector that will allow the safe evacuation flue condensate in liquid form.

If plants with open combustion chamber take room air where they are located, it will ensure fresh air entry required permanently in the room where the plant or plants in question, so whatever the plant room will be sealed, it will provide outlets required air according to norm.

Best Regard !