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气压波动破坏建筑排水系统水封.气压波动产生的主要原因是排水立管中水流速度大.对横支管产生强烈的抽吸作用,其次是横管排水在主管中产生的水舌阻隔作用.本文还指出建筑排水系统发展的可能趋向.
Pressure fluctuations destroy the water seal of the building’s drainage system. The main cause of the pressure fluctuation is the high velocity of the water in the drainage riser. It produces a strong suction effect on the horizontal branch pipe, followed by the water tongue barrier effect produced by the horizontal pipe drainage in the main pipe. Also pointed out the possible trend of the development of the building drainage system.