Four pumps were delivered to Tsuruya (Tsuruga) drainage plant.
April 1, 2019
EBARA Corporation
EBARA Ltd. (EBARA) delivered a drainage pump facility to the "Tsuruya Drainage Plant in the Nakatsuyama District," a state-run irrigation wastewater project ordered by the Tohoku Regional Agricultural Administration Office of the Ministry of Agriculture, Forestry and Fisheries.
1. Background
the main area is located in the northeastern part of Miyagi Prefecture (Ishinomaki City and Tome City), and is one of the prefecture's most prominent agricultural areas where rice cultivation and the production of barley, soybeans, and other crops from paddy fields are thriving. This area was surrounded by the Kitakami River and the former Kitakami River* and the deterioration of existing wastewater facilities resulted in a shortage of drainage capacity. As a result, the damage from flooding in times of heavy rain was increasing. Therefore, the challenge was to increase the drainage capacity of the pump and to reduce the cost of maintaining the old equipment.
2. Overview
The horizontal axis oblique flow pump delivered this time has a diameter of 2000 mm × 2 units, a diameter of 1500 mm × 1 unit and a diameter of 900 mm × 1 unit. By improving the efficiency of pumps and motors and achieving energy savings, we are also contributing to the reduction of maintenance and management costs.
| pump | Model name | Bore x Discharge volume x Total head | number of large objects such as cars, computers, etc. |
| 2000HZGE | 2000mm×10.0m3/s✕5.1m | 2 units | |
| 1500HZGE | 1500mm× 5.4m3/s✕4.5m | 1 unit | |
| 900HZGM | 900mm× 1.6m3/s✕3.9m | 1 unit | |
| total volume of water discharged | Old: 13.6 m3/s → New: 27.0 m3/s | ||
| Contract amount | 1,081,500,000 yen (excluding tax) | ||
3. Future developments
The Tsuruya drainage plant that EBARA delivered this time, and the Godani drainage plant (completed in September 2016, the planned drainage capacity of four drainage pumps was 20 m3/s). The drainage capacity of this region was approximately 1.8 times higher than that of the conventional one.
EBARA will continue to contribute to the development of the world through the provision of various products and services that support the infrastructure around the world, including the drainage plant.
*Rinju zone: an area surrounded by levees to protect settlements and farmland from flooding.
