发明名称 |
Fan filter unit control system and clean room provided with same |
摘要 |
Information from fan filter units and differential pressure gauges provided in a ceiling of a clean room is used to control directions and volumes of air flows blown from respective fan filter units. In order to improve a wind velocity distribution in the clean room, pressure in a ceiling chamber is made uniform and control of the FFU revolution speeds of fan filter units is made easy. In order to control directions of air flows in the clean room, damper adjusting mechanisms are provided under a grating floor of the clean room. Such arrangement enables optimizing an operating condition of the clean room and achieving energy saving.
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申请公布号 |
US6607435(B2) |
申请公布日期 |
2003.08.19 |
申请号 |
US20010028149 |
申请日期 |
2001.12.20 |
申请人 |
HITACHI, LTD. |
发明人 |
YOKOYAMA MAKOTO;ONO KEIICHI;TAMURA FUMIYUKI |
分类号 |
F24F7/06;B01L1/04;F24F3/16;F24F11/02;F24F11/04;F24F13/28;H01L21/00;(IPC1-7):B01L1/04 |
主分类号 |
F24F7/06 |
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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