The air distribution pipe is an air conveying system. The super duct fiber fabric air distributor is an air distribution system. These two concepts are different. The bag air duct is a new generation of ventilation system product integrating insulation materials, ventilation pipes, tuyeres and air valves. The bag air duct is an air outlet mode assisted by fiber penetration and jet at the orifice opening to achieve uniform air outlet.

The ventilation super pipes generally include: air supply and return pipes of purification system, central air conditioning ventilation pipes, industrial air supply and exhaust ventilation pipes, air suction and exhaust pipes of environmental protection system, mine gas drainage pipes, and mine coated cloth air ducts.

The super duct air duct in the ventilation system is a whole connected with each other and must follow the resistance balance law of each branch. Once the structural form and pipe size of the air duct system are determined, the air volume of each section is automatically distributed according to the resistance balance law under the action of a certain fan. Without resistance balance calculation in design calculation, the actual air volume distribution of the system will be inconsistent with the design.

According to the economic comparison, the wind speed in the air conditioning system can be taken as follows: in the general air conditioning system, the low wind speed is adopted; For high-rise buildings, due to the high installation height of pipes, it must be ensured that there is enough pressure to push the wind pressure to the approved space.