Ventilation ducts are a kind of municipal infrastructure to
circulate air and reduce the concentration of harmful gases.
Ventilation pipes, plates, profiles and other main finished
materials used in the production and installation of air pipes
should comply with the design and relevant product national current
standards, and the factory inspection certificate should be
applied. The materials should be checked and accepted according to
the current national standards when entering the site. Ventilation
ducts are divided by material: generally: steel duct (ordinary
steel plate), galvanized sheet (white iron) duct, stainless steel
duct, glass fiber reinforced plastic duct, plastic duct, composite
duct, color steel sandwich insulation board duct , Double-sided
aluminum foil insulation ventilation pipe, single-sided color steel
insulation ventilation pipe, rubberized cloth ventilation pipe
(such as mine air duct), mining plastic ventilation pipe, etc.
Processing technology
Can be divided into angle iron flange duct, common plate flange
duct
Shape classification
Generally: round, rectangular, spiral, etc.;
Use classification
Generally, there are: the return air duct of the purification
system, the central air conditioning ventilation duct, the
industrial air supply and exhaust ventilation duct, the suction and
exhaust duct of the environmental protection system, the gas
drainage pipe for mining, the air duct with rubberized cloth, etc.;
Air ducts are mainly used in industrial and construction
engineering. The application fields mainly involve: electronic
industry dust-free plant purification systems, medical and food
sterile workshop purification systems, central air conditioning
systems for hotels, shopping malls, hospitals, factories and office
buildings, and industrial pollution control Dust removal, smoke
exhaust, oil suction and other exhaust pipes, air supply pipes for
industrial environment or job comfort, gas drainage systems for
coal mine gas drainage, gas return air systems for coal mine
environment control... etc.; PS: often Developed as a special route
for escape and infiltration in film and animation
