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DN-9 smoke exhausters

DN-9 smoke exhausters

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Ukraine, Kharkov
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14 years on Allbiz
DN-9 smoke exhausters: description and technical characteristics
DN smoke exhausters are the tyagodutyevy fans (centrifugal) used as smoke removal fans for removal from boiler units in a chimney of oil-gas products of combustion of fuel. Symbols in the name: Д - smoke exhauster; N - shovels of the driving wheel are recurved; figure - diameter (in decimeters) the driving wheel. Respectively in DN 9 smoke exhausters it makes 900 mm.
Tyagodutyevy cars of DN under identical conditions of use serve twice longer than cars of D type as stamped shovels of the driving wheel of DN smoke exhausters are built up by the firm alloy protecting from abrasive effect of ashes on a surface and also are increased and strengthened by fins from strips of a wall of a snail (for ensuring necessary rigidity).
Mission of DN-9 smoke exhausters: these tyagoduyny cars are equipped with system of a zoloulavlivaniye with extent of purification of combustion gases of 90%. They are used for removal in a chimney of combustion gases from fire chambers of package boilers and oil-gas coppers with steam generating capacity within 2,5-25 t/hour.
Productivity and technical characteristics of DN-9 smoke exhausters
At the maximum efficiency (83%), atmospheric pressure of 760 mm hg, completely open directing device and at the most admissible temperature of gases on an entrance (+200o C), DN-9 smoke exhausters have the following aerodynamic parameters:
With the electric motor with a frequency of rotation of 1000 revolutions per minute
Steam generating capacity is 9930 m3/hour
Total pressure of 80 kPa
Power consumption is 11 kW

With the electric motor with a frequency of rotation of 1500 revolutions per minute:
Steam generating capacity is 14900 m3/hour
Total pressure of 181 kPa
Potreblyaevy power is 15 kW

The mass of DN-9 smoke exhausters - 668 kg. Range of regulation is 40%. Are made the left and right directions of rotation.
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DN-9 smoke exhausters
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