When the ventilation pipeline is installed in many places, there are many problems.
Especially after the installation, many property safety inspectors are not clear about the use
of the pipeline。 Especially, the ventilation pipeline and the smoke exhaust pipeline are always
confused. Here's how to distinguish the ventilation pipeline from the smoke exhaust pipeline.
讲有分别,就管道本身讲都是管道。 安装完的风管要保证表面光滑洁净,室外风管应有防雨、防雪措施。 风
缝隙应封堵严密。 风管穿越沉降缝时应按设计要求加设套管，套管与风管的间隙用填料(软质)封 堵严密，从
Ventilation duct is a duct specially designed to supply and exhaust air for one or more
rooms or equipment。 The exhaust pipe is a special pipe for co-exhausting flue gas。 There are
differences in its usefulness and pipeline itself. After installation, the surface of the air
duct should be smooth and clean, and the outdoor air duct should be protected against rain and
snow。 When the duct enters the structural duct, the end of the duct should be fitted with steel
mesh to prevent sundries from entering the metal duct when the system is running。 The gap
between metal duct and structural duct should be sealed tightly. When the duct crosses the
settlement joint, it should be added casing according to the design requirements. The gap
between the duct and the casing should be sealed tightly with filler (soft)。 From these
characteristics, we should be able to quickly distinguish the difference between the two.
Although galvanized iron sheet is often used to make smoke exhaust ducts, which require high
temperature resistance and higher fire protection requirements; in architectural design, the
thickness of galvanized iron sheet of smoke exhaust ducts is selected according to high pressure
standards, and the general ventilation system is selected according to medium and low pressure
systems; if it is not the air duct of air conditioning system, the general ventilation duct does
not need heat preservation, and if the smoke exhaust duct is installed indoors, Generally, heat
insulation should be done。
As far as pipelines are concerned, they are all pipelines, but the difference can be seen
from the name and function. Ventilation plays the role of ventilation to keep the indoor air
unobstructed, so the ventilation duct is a duct to supply air and exhaust air to the room or
equipment. The exhaust pipe is specially designed for the discharge of flue gas.