基本信息:
- 专利标题： 嗅探检漏器
- 专利标题（英）：Sniffing leak detector
- 申请号：CN201080008422.3 申请日：2010-02-05
- 公开(公告)号：CN102326063A 公开(公告)日：2012-01-18
- 发明人： 丹尼尔·韦齐希
- 申请人： 因菲康有限公司
- 申请人地址： 德国科隆
- 专利权人： 因菲康有限公司
- 当前专利权人： 因菲康有限公司
- 当前专利权人地址： 德国科隆
- 代理机构： 北京集佳知识产权代理有限公司
- 代理人： 寇英杰; 王婧
- 优先权： 102009010064.4 2009.02.21 DE
- 国际申请： PCT/EP2010/051427 2010.02.05
- 国际公布： WO2010/094582 DE 2010.08.26
- 进入国家日期： 2011-08-18
- 主分类号： G01M3/20
- IPC分类号： G01M3/20
The invention relates to a sniffing leak detector comprising a sniffing line (11) and a feed line (33) that leads to a vacuum pump (16). A distribution point (24) from which a branch (25) leads to a test gas sensor (15) is provided on the feed line (33). In order for the intermediate pressure (P2) at the distribution point (24) to be independent of feed fluctuations of the vacuum pump (16), a throttle (D2) comprising a supercritically operated circular orifice (20) is provided between the distribution point (24) and the vacuum pump (16). The pressure drop at the circular orifice (20) is greater than half the intermediate pressure (P2) at the distribution point (24). The flow at the circular orifice (20) is thus blocked, wherein the flow (Q) remains constant regardless of changes of the pump pressure (P3). Changes of the intermediate pressure (P2) are thus prevented so that the sensitivity and signal stability of the test gas sensor (15) is unaffected by changes of the pump pressure.
公开/授权文献:
- CN102326063B 嗅探检漏器 公开/授权日：2014-05-07
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01M | 机器或结构部件的静或动平衡的测试；未列入其他类目的结构部件或设备的测试 |
| ------G01M3/00 | 结构部件的流体密封性的测试 |
| --------G01M3/02 | .应用流体或真空 |
| ----------G01M3/04 | ..通过在漏泄点检测流体的出现 |
| ------------G01M3/20 | ...应用特殊示踪物质，例如染料、荧光材料、放射性材料 |