Study On Discharge Capacity Of Drainage System In Building

Domestic water supply and drainage construction and technical personnel for the development of new products and the development of standards for sewer, drainage on the drainage capacity of riser system had a positive study. There is no fixed subject to state water drainage capacity of riser system test device, equipment, methods, and determine standards in different experiments, methods and standards are inconsistent, the results are inconsistent. Building drainage design maximum discharge capacity is the basis of established norms, but also the fundamental basis of standardized design.In this experiment, the drainage layer test device 12 as a pilot study, according to different traffic began to balk from the top order to simulate the actual work under the most unfavorable conditions, using pressure sensors to measure the pressure sewer system, the instantaneous value, use the water level gauge within the water seal trap to measure the changes. This Paper studies the following three tests:. The study is mainly conducted from the three following aspects:Firstly, Introduced in JaPan, "a collection of domestic water riser system to the drainage caPacity test method" SHASE 218-2008 riser on the drainage caPacity through water testing with the relevant provisions. JaPan is not in accordance with the final test method to determine the theoretical limit to the maximum water standpipe with water caPacity, but the test results by test tower riser determine the maximum water drainage caPacity. Determine its conditions are: pressure fluctuations do not exceed±400Pa; seal loss is not greater than 25mm.Secondly, Special single-riser through the water drainage system caPacity test. The flow through the instrument and the corresponding record pressure data, horizontal tube drainage were carried out comParative analysis of different floors on different floors instantaneous - pressure curves were comPared, and combined trap seal losses come all kinds of special single- riser system's ability to Pass water..Thirdly, PVC-U Standard Pipe riser single, double riser through the water drainage system caPacity test. As the flow increases, the drain lines of the pressure fluctuations and losses to further increase the water seal, and different drainage system to increase the proportion of completely different. Experiments, the standard PVC-U single-tube riser, two-riser system discharge caPacity and the value of the original design specification far aPart.