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1. 发明公开

EP0991888A4 METHOD AND APPARATUS FOR ON-LINE DETECTION OF LEAKY EMERGENCY SHUT DOWN OR OTHER VALVES 失效
标题翻译： VERFAHREN UNDGERÄTZUR在线 - LECKAGEÜBERWACHUNGVON NOTABSCHALTVENTILEN ODER ANDEREN通风
公开(公告)号：EP0991888A4
公开(公告)日：2001-04-18
申请号：EP98931431
申请日：1998-06-18
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28
CPC分类号： G01M3/2876 , F16K5/0663 , F16K37/005 , G01M3/24
摘要： A method and apparatus for on-line detection of leaky emergency shut down or other valves (10) in a fluid transport system having an upstream pipe, a downstream pipe and the valve (10) connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system.
摘要翻译：一种用于在线检测泄漏紧急停机或其中具有上游管，下游管和连接在上游管和下游管之间的阀的流体输送系统中的其它阀的方法和装置，用于控制通过系统的流体流动。阀具有至少一个上游密封件和至少一个下游密封件和通过密封件有效隔离通过该系统的流体流动的内腔。该设备包括：第一传感器，其以至少一个流体流体连通流体流：在上游密封件上游的预定距离; 和下游密封件下游的预定距离。第一传感器用于感测由以下至少一种产生的压力脉动：由流体流过传输系统的动态能量; 以及在阀关闭之后传输系统中的流体内的瞬态能量，并且用于产生作为时间的函数的代表性电信号。第二换能器与阀的内腔流体连通，用于感测内腔内的基本上同时的压力脉动，并产生作为时间的函数的第二代表性电信号。分析仪接收第一和第二电信号，并产生频率响应函数中的至少一个; 和一致性功能。所产生的功能被充分地平均以提供两个电信号相关程度的有意义的测量，从而指示在流体输送系统内的感测压力脉动是否以及在多大程度上通过至少一个密封件到内腔。

2. 发明专利

AT249000T 未知
公开(公告)号：AT249000T
公开(公告)日：2003-09-15
申请号：AT98931431
申请日：1998-06-18
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28
摘要： A method and apparatus for on-line detection of leaky emergency shutdown or other valves in a fluid transport system having an upstream pipe, a downstream pipe and the valve connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system. The valve has at least one upstream seal and at least one downstream seal and an inner cavity effectively isolated by the seals from the fluid flow stream through the system. The apparatus comprises a first transducer in fluid communication with the fluid flow stream at at least one of: a predetermined distance upstream of the upstream seal; and a predetermined distance downstream of the downstream seal. The first transducer is for sensing pressure pulsations resulting from at least one of: dynamic energy due to fluid flow through the transport system; and transient energy within the fluid in the transport system after the valve is closed and for generating representative electrical signals as a function of time. A second transducer is in fluid communication with the inner cavity of the valve for sensing substantially simultaneous pressure pulsations within the inner cavity and for generating second representative electrical signals as a function of time. An analyzer receives the first and second electrical signals and generates at least one of: a frequency response function; and a coherence function. The generated function is sufficiently averaged to provide a meaningful measure of the degree to which the two electrical signals are related to thereby indicate whether, and to what extent, sensed pressure pulsations within the fluid transport system are passed through at least one of the seals to the inner cavity.

3. 发明专利

NO20055161A 未知
公开(公告)号：NO20055161A
公开(公告)日：2000-02-25
申请号：NO20055161
申请日：2005-11-03
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28 , E21B34/00
CPC分类号： G01M3/2876 , F16K5/0663 , F16K37/005 , G01M3/24

4. 发明专利

NO320881B1 未知
公开(公告)号：NO320881B1
公开(公告)日：2006-02-06
申请号：NO996403
申请日：1999-12-22
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K37/00 , F16K5/06 , G01M3/24 , G01M3/28
摘要： A method and apparatus for on-line detection of leaky emergency shutdown or other valves in a fluid transport system having an upstream pipe, a downstream pipe and the valve connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system. The valve has at least one upstream seal and at least one downstream seal and an inner cavity effectively isolated by the seals from the fluid flow stream through the system. The apparatus comprises a first transducer in fluid communication with the fluid flow stream at at least one of: a predetermined distance upstream of the upstream seal; and a predetermined distance downstream of the downstream seal. The first transducer is for sensing pressure pulsations resulting from at least one of: dynamic energy due to fluid flow through the transport system; and transient energy within the fluid in the transport system after the valve is closed and for generating representative electrical signals as a function of time. A second transducer is in fluid communication with the inner cavity of the valve for sensing substantially simultaneous pressure pulsations within the inner cavity and for generating second representative electrical signals as a function of time. An analyzer receives the first and second electrical signals and generates at least one of: a frequency response function; and a coherence function. The generated function is sufficiently averaged to provide a meaningful measure of the degree to which the two electrical signals are related to thereby indicate whether, and to what extent, sensed pressure pulsations within the fluid transport system are passed through at least one of the seals to the inner cavity.

5. 发明专利

NO996403L 未知
公开(公告)号：NO996403L
公开(公告)日：2000-02-25
申请号：NO996403
申请日：1999-12-22
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28
摘要： A method and apparatus for on-line detection of leaky emergency shutdown or other valves in a fluid transport system having an upstream pipe, a downstream pipe and the valve connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system. The valve has at least one upstream seal and at least one downstream seal and an inner cavity effectively isolated by the seals from the fluid flow stream through the system. The apparatus comprises a first transducer in fluid communication with the fluid flow stream at at least one of: a predetermined distance upstream of the upstream seal; and a predetermined distance downstream of the downstream seal. The first transducer is for sensing pressure pulsations resulting from at least one of: dynamic energy due to fluid flow through the transport system; and transient energy within the fluid in the transport system after the valve is closed and for generating representative electrical signals as a function of time. A second transducer is in fluid communication with the inner cavity of the valve for sensing substantially simultaneous pressure pulsations within the inner cavity and for generating second representative electrical signals as a function of time. An analyzer receives the first and second electrical signals and generates at least one of: a frequency response function; and a coherence function. The generated function is sufficiently averaged to provide a meaningful measure of the degree to which the two electrical signals are related to thereby indicate whether, and to what extent, sensed pressure pulsations within the fluid transport system are passed through at least one of the seals to the inner cavity.

6. 发明专利

NO996403A 未知
公开(公告)号：NO996403A
公开(公告)日：2000-02-25
申请号：NO996403
申请日：1999-12-22
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28
CPC分类号： G01M3/2876 , F16K5/0663 , F16K37/005 , G01M3/24

7. 发明专利

AU8156798A Method and apparatus for on-line detection of leaky emergency shut down or othervalves 未知
公开(公告)号：AU8156798A
公开(公告)日：1999-01-19
申请号：AU8156798
申请日：1998-06-18
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K5/06 , F16K37/00 , G01M3/24 , G01M3/28
摘要： A method and apparatus for on-line detection of leaky emergency shutdown or other valves in a fluid transport system having an upstream pipe, a downstream pipe and the valve connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system. The valve has at least one upstream seal and at least one downstream seal and an inner cavity effectively isolated by the seals from the fluid flow stream through the system. The apparatus comprises a first transducer in fluid communication with the fluid flow stream at at least one of: a predetermined distance upstream of the upstream seal; and a predetermined distance downstream of the downstream seal. The first transducer is for sensing pressure pulsations resulting from at least one of: dynamic energy due to fluid flow through the transport system; and transient energy within the fluid in the transport system after the valve is closed and for generating representative electrical signals as a function of time. A second transducer is in fluid communication with the inner cavity of the valve for sensing substantially simultaneous pressure pulsations within the inner cavity and for generating second representative electrical signals as a function of time. An analyzer receives the first and second electrical signals and generates at least one of: a frequency response function; and a coherence function. The generated function is sufficiently averaged to provide a meaningful measure of the degree to which the two electrical signals are related to thereby indicate whether, and to what extent, sensed pressure pulsations within the fluid transport system are passed through at least one of the seals to the inner cavity.

8. 发明专利

NO20055161L 未知
公开(公告)号：NO20055161L
公开(公告)日：2000-02-25
申请号：NO20055161
申请日：2005-11-03
申请人： CRANE NUCLEAR INC
发明人： LEON ROBERT L , HEAGERTY DAVID Q
IPC分类号： F16K37/00 , G01M3/24 , F16K5/06 , G01M3/28 , E21B34/00
摘要： A method and apparatus for on-line detection of leaky emergency shutdown or other valves in a fluid transport system having an upstream pipe, a downstream pipe and the valve connected between the upstream pipe and the downstream pipe for controlling fluid flow through the system. The valve has at least one upstream seal and at least one downstream seal and an inner cavity effectively isolated by the seals from the fluid flow stream through the system. The apparatus comprises a first transducer in fluid communication with the fluid flow stream at at least one of: a predetermined distance upstream of the upstream seal; and a predetermined distance downstream of the downstream seal. The first transducer is for sensing pressure pulsations resulting from at least one of: dynamic energy due to fluid flow through the transport system; and transient energy within the fluid in the transport system after the valve is closed and for generating representative electrical signals as a function of time. A second transducer is in fluid communication with the inner cavity of the valve for sensing substantially simultaneous pressure pulsations within the inner cavity and for generating second representative electrical signals as a function of time. An analyzer receives the first and second electrical signals and generates at least one of: a frequency response function; and a coherence function. The generated function is sufficiently averaged to provide a meaningful measure of the degree to which the two electrical signals are related to thereby indicate whether, and to what extent, sensed pressure pulsations within the fluid transport system are passed through at least one of the seals to the inner cavity.

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