发明名称 |
High efficiency backwash shoe |
摘要 |
In an apparatus containing rotating filter media that removes solids from a fluid stream, the invention provides devices and methods for improved cleaning of the filter media. Solids trapped on the filter media are removed by the application of a suction pressure that draws the filter media into contact with a backwash shoe. The backwash shoe has one or more orifice slots in a radially tapered or oblique angular configuration or in a combination of radially tapered and oblique angular configurations. The orifice slot configuration creates an hydraulic condition where the unit of orifice area applied per unit filter area has a generally uniform ratio across the rotating filter media. This configuration equalizes the distribution of the backwash flow over the filter area, thereby maintaining the filter media in a more uniformly clean and effective filtering condition.
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申请公布号 |
US6294098(B1) |
申请公布日期 |
2001.09.25 |
申请号 |
US20000576699 |
申请日期 |
2000.05.23 |
申请人 |
AQUA-AEROBICS SYSTEM, INC. |
发明人 |
BERGMANN EUGEN O. |
分类号 |
B01D33/21;(IPC1-7):B01D33/50 |
主分类号 |
B01D33/21 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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