-
公开(公告)号：EP0907828A1
公开(公告)日：1999-04-14
申请号：EP97932432.0
申请日：1997-06-26
CPC分类号： F04B43/009 , F04B2201/0208 , F04B2205/50
摘要： A diaphragm failure monitoring system for detecting leakage in a diaphragm of a diaphragm pump. The system includes a pump (10) having an operating chamber (16) containing a working fluid (30) and a pumping chamber (14) for pumping material into and out of the pump and a diaphragm (18) separating the operating and pumping chambers. A first optic fiber (52) is joined to the operating chamber for transmitting an optic signal across the working fluid. A second optic fiber (60) is joined to the operating chamber for receiving the optic signal from the first optic fiber. An electric signal establishing device (56) establishes a fist electrical signal when the optic signal from the first optic fiber to the second optic fiber passes through uncontaminated working fluid. The electrical signal establishing device establishes a second electrical signal when the optic signal from the first optic fiber to the second optic fiber passes through contaminated working fluid, whereby leakage of a contaminating material through the diaphragm into the operating chamber can be detected when the second electrical signal is established.
-
公开(公告)号：EP1088206A1
公开(公告)日：2001-04-04
申请号：EP99930649.1
申请日：1999-06-25
IPC分类号： G01K1/10
CPC分类号： G01K1/10
摘要： An improved apparatus comprising a thermocouple for measuring the temperature in a gasification process is provided. The improvement comprises a sapphire envelope for enclosing at least a portion of the thermocouple. The sapphire envelope may be in the form of a sapphire sheath fitted over the thermocouple. The apparatus may also comprise a thermowell, with the sapphire envelope being provided by the thermowell.
-
公开(公告)号：EP0990132A1
公开(公告)日：2000-04-05
申请号：EP98928926.9
申请日：1998-06-05
发明人： GREEN, Steven, R.
CPC分类号： G01M3/38
摘要： An optical leak detector (200) for use with a cooling system is described. The optical leak detector includes a light source (203), a light detector (205), and a conversion device (215). The light source is optically coupled to the light detector by way of an optical path (210). The light detector generates an electronic signal in response to light received from the light source. The conversion device, which is attached to the light detector, generates an electronic signal in response to the amount of light received from the light source. This electronic signal can indicate if a leak has occurred in the cooling system by the traversal of a entrapped gas bubble across the optical path formed by the light source and the light detector.
-
-
搜索结果
3 条记录 (耗时 0.008 秒)
