Siphon Rainwater Drainage System Design In The Gutter Condition Experiment And Simulation

Building drainage system as a building in which an independent drainage systemof roof rainwater, dredging, and slow down the rain on the roof structure load, plays avital role in. In the face of large roof construction and timely discharge of roofrainwater task, siphon system is more efficient. On the siphon rainwater drainagesystem equipment and accessories, such as the rainbow suction drain, tail pipe,connecting pipe, foreign company is the product of some key parameters forcommercial secret. This paper aims to study for siphon system components (gutterand piping system) of the testing process and testing equipment, the unified productmarket plays a key role, thus ensuring the engineering design personnel to theaccuracy of system design, construction of system of actual construction level alsohas the important help.This article in view of the present common gutter type hydraulic design method,influence the gutter hydraulic main factor--the width of hydraulic simulation test, atthe same time reference computational fluid dynamics CFD software FLUENT tosiphon rainwater drainage system piping system of cavitation condition simulation.Gutter hydraulic simulation test by changing the riser height (respectively3M,4m,5m,6m) to regulate the flow of rainwater hopper. The comparison of threekinds of gutter in different width, rainwater bucket maximum discharge capacitydistribution in38.2~38.5flow range; B=500mm and B=600mm gutter systembucket depth before similar, but the latter flow compared to the former increased0.15L/S; B=750mm gutter, bucket depth before compared to B=500mm gutter isreduced nearly to4mm, but the flow is also lower than0.10L/s. The rainwater hoppermaximum flow and the bucket depth before the judgment gutter width on therainwater hopper discharge capacity influence important basis.