发明名称 |
The detection of airborne pollutants |
摘要 |
A smoke detection system comprises a manifold (4) connected to a series of sampling pipes (2). A fan (6) which draws a large volume of sampling air through the sampling pipes is connected to the inlet manifold and a small proportion of that air is directed to the inlet of a smoke detector (12), the outlet of which is connected to the manifold. The configuration obtained by the connection of the outlet from the detector into the inlet manifold provides a large pressure drop across the flow path through the detector. As a result of the large pressure drop, a filter (10) for removing dust and other contaminants can be incorporated in the flow path and the filter can also incorporate a fine filtering stage to produce a secondary clear air flow which can be directed into the detector to prevent smoke particles from settling on critical components of the detector. |
申请公布号 |
GB2327495(A) |
申请公布日期 |
1999.01.27 |
申请号 |
GB19980022925 |
申请日期 |
1997.05.02 |
申请人 |
* VISION PRODUCTS PTY. LTD |
发明人 |
RONALD * KNOX;CHRISTOPHER T * RYAN;HUGH * STEVENSON |
分类号 |
G01N1/00;G01N1/02;G01N21/53;G08B17/10;G08B17/107 |
主分类号 |
G01N1/00 |
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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