YIN Hao-ran,GUAN Yu-xi,REN Shao-long,et al.Influence of Vent Pipe Diameter on Water Capacity of Drainage System with Auxiliary Vent Pipe[J].China Water & Wastewater,2021,37(11 11):40-45.
Influence of Vent Pipe Diameter on Water Capacity of Drainage System with Auxiliary Vent Pipe
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
11 11
Page:
40-45
Column:
Date of publication:
2021-06-01
- Keywords:
- auxiliary vent pipe; circular ventilation; vent pipe diameter; water capacity; pressure limit; water seal loss
- Abstract:
- The performance of drainage system with auxiliary vent pipe was compared under conditions of different vent pipe diameters (DN100, DN75 and DN50), the maximum water capacity of the system was measured respectively, and the pressure fluctuation, water seal loss and variation in ventilation of the drainage system were observed in each floor. Bigger diameter of the vent pipe would achieve greater water capacity of the drainage system with auxiliary vent pipe, in which the maximum flow rates of the three systems were 17.0 L/s, 14.0 L/s and 7.5 L/s, respectively. The results indicated that the drainage system with auxiliary vent pipe had a large drainage capacity. When the diameter of the vent pipe was DN75, the drainage system with auxiliary vent pipe could meet the requirement of the maximum flow rate of 10 L/s for medium and highrise buildings in the Standard for Design of Building Water Supply and Drainage (GB 50015-2019).
Last Update:
2021-06-01