When the smoke hood in Ji'nan shipping air cold towel process high heat loss and requests for air temperature to maintain the stability, perhaps to avoid the formation of impact on the indoor air parameters of the wind pipe across the room or when the exhaust gas discharged into the atmosphere in front with cooling and the formation of condensate blockage or corrosion of the air duct and spiral duct appearance may have condensation. In need of insulation of air duct. The general insulation anti-corrosion insulation layer, moisture-proof layer and protective layer four layer structure.
The ventilation pipe section shape is circular and rectangular two. In the same fault because of perimeter short and most economical spiral duct area, in the same air flow rectangular duct like conditions and lost to use circular duct than spiral wind pressure, and sometimes as long as in order to facilitate the building with Taiwan was selected for the moment section.
青海福彩网 The pressure loss formula of the rectangular air duct shows that the pressure loss of the rectangular duct increases with the increase of the aspect ratio of the duct, so the width ratio of the rectangular duct should be close to that of L., of course, depending on the site conditions
Duct ventilation, air conditioning system, should use the spiral duct。 The length ratio of 4 small rectangular section, the maximum length of edge ratio should not exceed 1O, cross section scale wind tube, should according to the current standard of ventilation and air conditioning provisions of national code for acceptance of construction quality of work performance。
The exhaust pipe passes through the beam because building ventilation pipe cross-sectional area smaller, increasing section resistance, which don't know air exhaust pipe in the construction, through the beam or escape from other equipment pipeline, an exhaust pipe will be lower than the plane of the exhaust pipe. In use after a period of time, because the mixture of oil accumulation in the exhaust pipe in the low smoke, directly affect the smooth.
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