发明申请
- 专利标题: Vacuum station and the method for operating the same
- 专利标题(中): 真空站及其操作方法
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申请号: US10893976申请日: 2004-07-20
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公开(公告)号: US20050016588A1公开(公告)日: 2005-01-27
- 发明人: Osamu Shimizu , Keisuke Ikeda
- 申请人: Osamu Shimizu , Keisuke Ikeda
- 申请人地址: JP Tokyo
- 专利权人: EBARA CORPORATION
- 当前专利权人: EBARA CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2003-277208 20030722
- 主分类号: E03F5/22
- IPC分类号: E03F5/22 ; E03F1/00 ; E03F3/02 ; F04F1/02 ; F04F1/06
摘要:
A vacuum station is used for storing sewage from a vacuum sewage pipe and then delivering the sewage to a sewage treatment plant or the like. The vacuum station includes a collection tank for collecting sewage, a plurality of vacuum pumps for depressurizing and pressurizing an interior of the collection tank, and a controller for controlling the plurality of vacuum pumps. The controller controls at least one of the vacuum pumps so as to rotate in normal direction so that the interior of the collection tank is depressurized to collect sewage into the collection tank, and at least one of the vacuum pumps so as to rotate in reverse direction when the sewage in the collection tank reaches a predetermined sewage level so that the interior of the collection tank is pressurized to discharge the sewage from the collection tank.
公开/授权文献
- US07152618B2 Vacuum station and the method for operating the same 公开/授权日:2006-12-26