Gas fumigation method and system
    2.
    发明授权
    Gas fumigation method and system 有权
    气体熏蒸方法及系统

    公开(公告)号:US06615534B1

    公开(公告)日:2003-09-09

    申请号:US09363688

    申请日:1999-07-30

    IPC分类号: A01M1300

    摘要: A method and system are disclosed for fumigating at least one region with a nonflammable gaseous mixture including phosphine. A sensor senses the concentration of phosphine for atmosphere of the region and a flow controller controls flow to the region in response to the sensed concentration. A recycling passage removes a portion of the atmosphere from the region and returns the atmosphere to create a recycle flow through the region. In addition, a gas mixing system is provided to supply the non-flammable mixture by mixing phosphine from a phosphine source and an inert substance from an inert substance source.

    摘要翻译: 公开了用含有磷化氢的不燃性气体混合物熏蒸至少一个区域的方法和系统。 传感器感测该区域的气氛中的磷化氢的浓度,并且流量控制器响应于感测浓度控制流向该区域的流量。 回收通道从该区域去除一部分气氛并返回大气以产生通过该区域的再循环流。 此外,提供气体混合系统以通过将来自磷化氢源的膦和惰性物质源的惰性物质混合来供应不可燃混合物。

    Gas fumigation method and system
    6.
    发明授权
    Gas fumigation method and system 失效
    气体熏蒸方法及系统

    公开(公告)号:US6047497A

    公开(公告)日:2000-04-11

    申请号:US819996

    申请日:1997-03-18

    摘要: A method and system are disclosed for fumigating at least one region with a non-flammable gaseous mixture including phosphine. A sensor senses the concentration of phosphine for atmosphere of the region and a flow controller controls flow to the region in response to the sensed concentration. A recycling passage removes a portion of the atmosphere from the region and returns the atmosphere to create a recycle flow through the region. In addition, a gas mixing system is provided to supply the non-flammable mixture by mixing phosphine from a phosphine source and an inert substance from an inert substance source.

    摘要翻译: 公开了用包含磷化氢的不燃性气体混合物熏蒸至少一个区域的方法和系统。 传感器感测该区域的气氛中的磷化氢的浓度,并且流量控制器响应于感测浓度控制流向该区域的流量。 回收通道从该区域去除一部分气氛并返回大气以产生通过该区域的再循环流。 此外,提供气体混合系统以通过将来自磷化氢源的膦和惰性物质源的惰性物质混合来供应不可燃混合物。