TOP > NEWS > PROJECT HIGHLIGHTS > Utilized a vortex preventing pump that allows for low water level operation
2024.06.24
Received order from Japan Sewage Works Agency for vertical mixed-flow pump for Shunan City Nomura Kaisaku Drainage Pumping Station [Orders Received in January 2024]
Shunan City is located in Yamaguchi Prefecture, the westernmost prefecture of Honshu (Japan’s largest island), and faces the Seto Inland Sea. One of the nation’s leading petrochemical complexes is located along the Seto Inland Sea coast, and in addition to basic materials industries such as steel, petroleum, and chemical products, the manufacture of transportation machinery, mechatronics and electronic component-related products, and pharmaceutical products are also thriving. In recent years, the area has become famous for fantastic night views of factories created by the countless lights emitted from the vast industrial complex, and has been recognized as one of Japan’s Night View Heritage sites.
The Nomura Kaisaku Drainage Pumping Station, to which the pumps will be supplied, is located in a corner of the petrochemical complex southeast of JR Shinnanyo Station, and is one of the largest drainage pumping stations in the city, boasting a planned inflow rate of 1,640 m³/min. In FY2020, the No. 2 main pump (1,200 mm diameter horizontal mixed-flow pump) equipped with a vortex preventing device was delivered to this drainage pumping station, allowing for operation at water levels 80 cm lower than the existing pump. The operation manager praised the
pump, saying, “We were able to lower the water level in the inflow canal, allowing us to manage the operation with plenty of leeway even during heavy rainfall.”
The new pump is a motor-driven vertical pump instead of the existing engine-driven horizontal pump, which improves startability, operability, and ease of maintenance and management. Vortex prevention measures are also employed in this pump to allow for operation at low water levels. Further reducing the burden of operation management and enabling operation in accordance with inflow volumes, this pump is expected to contribute to disaster prevention and mitigation in the surrounding area by improving the functionality of the pumping station.
PAGETOP
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