Recently, I visited the Climate Environment Demonstration Center in Jincheon-gun, Chungcheongbuk-do. It features an impressive 60-meter-high tower that originally measured wind speed but has now been transformed by PPI Peace, a mid-sized pipe manufacturer, into a test space for drainage systems in high-rise buildings.
The tower has gone from five floors to 20, with each floor standing 3 meters tall, mimicking real apartment conditions. Inside, there are eight vertical pipes running 60 meters up from the ground, and 15 toilets spread across the top five floors. This setup allows for testing various scenarios, like multiple households flushing toilets at the same time.
PPI Peace’s goal is to showcase the efficiency of its innovative “non-transmission air drain system.” In high-rise buildings, managing pipe pressure gets tricky, often leading to sewer odors that can waft into homes. For instance, when water is flushed, a significant amount can be quickly discharged, causing temporary negative pressure in the pipes. This can inadvertently pull up sewage from lower toilets, leading to unpleasant issues.
Interestingly, when multiple toilets flush simultaneously, it can create a surge of positive pressure. If this pressure exceeds 400 pascals, it can even cause toilets on lower floors to bubble over. Many construction companies hesitate to install additional ventilation pipes due to high costs. Yet, PPI Peace’s air drain system cleverly manages air and fluid pressure using just vertical piping.
When pressure drops, a special elastic sheet inside their design opens to let in outside air, stabilizing the system. Moreover, unique internal features help guide the water along the pipe’s walls, speeding up drainage and doubling the efficiency compared to traditional methods.
Presently, standard drainage systems only manage about 3 liters per second with a 100mm pipe diameter, typically suitable for buildings up to 29 stories. PPI Peace’s approach can handle 6 liters per second, allowing for stable drainage in structures up to 72 floors without needing extra ventilation. Youngsoo Kim, the company’s director, emphasizes this breakthrough potential.
PPI Peace has been operating since 1976, focusing on functional pipes used in various sectors like civil engineering and firefighting. Their commitment to innovation is evident as their products have been employed in significant projects, including Lotte World Tower in Seoul.
With urban populations growing, efficient drainage systems are more crucial than ever. As PPI Peace leads the way in this field, their developments not only push construction boundaries but also enhance our daily living conditions. For more on innovative building technologies, check out the latest updates from [ respected sources in construction and engineering ](https://www.naiop.org).
