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Suminoe Pump Station

One of the largest pump stations in Osaka City

Pump Station Overview

Location: Suminoe-ku, Osaka City

Discharge rate: 73 m3/sec

Number of installed units: 6 units

Model: φ2200mm vertical vortex mixed flow pump VLYGE type

Challenge/Solutions

As the city developed, the fields and lakes that had previously been able to retain rainwater became fewer, and during heavy rainfall, even in areas with well-developed sewer systems, the amount of rainwater concentrated in low-lying areas exceeded the system's capacity to handle it, causing flood damage. Urban flooding is serious in the southeastern part of the city, so the Naniwa Great Floodway was constructed as a fundamental solution. (Total length 12.2 km, maximum inner diameter 6.5 m) The Suminoe Drainage Station was constructed to drain the rainwater collected in this main waterway into the Sumiyoshi River.

Features

Since the main line that flows into the facility is located approximately 30 meters underground, most of the facility is an underground structure, and the underground portion is cylindrical (outer diameter 81 m) in order to reduce civil engineering construction costs and shorten construction time. Six pumps installed here will drain the water into the Sumiyoshi River.

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