The difference principle of water, high-rise building special single riser drainage system can be divided into Suwito singlestack systems and cyclone singlestack systems. AD type single vertical pipe drainage system is a swirl type system, developed by a Japanese company, is now a special single pipe drainage system in the more advanced drainage system.
U1 pipe by PVC-U enhanced spiral tube or spiral PVC lined steel pipe (DVLP spiral pipe); horizontal branch pipe and vertical pipe joints using AD slender joints, joint internal guide blades, in order to strengthen the vertical pipe spiral flow; the lower part of the vertical pipe diameter, curvature radius, egg shaped section at the bottom AD type connector.
The pipe and the AD type joint adopt the flexible connection of the flange or the flexible connection of rubber sealing ring. Drainage through AD joint, driven by the cyclotron in the diversion lodicule water formed in the vertical pipe, the vertical pipe spiral flow structure in the vertical pipe wall under rotation until the bottom of the vertical pipe, the vertical central air and outside air is at the top of pipe, pressure to maintain a steady state; when the drainage at the bottom of the vertical pipe, egg shaped the section can provide sufficient air layer to flow smoothly through the water, effectively prevent the jump phenomenon.
Compared with the common drainage system, AD type single vertical pipe drainage system has the following advantages:
(1) accounts for only one pipe, saving installation space and piping material cost.
(2) the drainage is adhered to the spiral flow, the single pipe is drained and ventilated, and the flow noise is effectively reduced.
(3) the system is simple, easy to install and maintain.
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