Measuring system with a flow conditioner for flow profile stabilization
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01F-001/32
출원번호
US-0318474
(2008-12-30)
등록번호
US7882751
(2011-01-26)
우선권정보
DE-2007-0 2007 063 372(2007-12-30)
발명자
/ 주소
Hoecker, Rainer
출원인 / 주소
Endress + Hauser Flowtec AG
대리인 / 주소
Bacon & Thomas, PLLC
인용정보
피인용 횟수 :
5인용 특허 :
23
초록▼
A measuring system is inserted into the course of a process line for a flowing medium and includes a measuring transducer with a measuring tube for conveying the medium and with a sensor arrangement for generating at least one measurement signal influenced by a measured variable of the medium. The m
A measuring system is inserted into the course of a process line for a flowing medium and includes a measuring transducer with a measuring tube for conveying the medium and with a sensor arrangement for generating at least one measurement signal influenced by a measured variable of the medium. The measuring tube shows a smaller flow cross section than a supply segment of the process line, connected to the inlet end of the measuring system. The measuring system further includes a flow conditioner, arranged at the inlet end of the measuring tube and mediating between the measuring tube and the supply segment. The flow conditioner shows a lumen tapering towards the measuring tube, and includes at least two inner edges arranged upstream of its outlet end and protruding into the lumen of the flow conditioner. Between the first inner edge and the second inner edge, there extends additionally, a first guide surface of the flow conditioner. Moreover, the second inner edge bounds a second guide surface extending towards the outlet end of the flow conditioner and serving for guiding medium flowing in the flow container during operation.
대표청구항▼
What is claimed is: 1. A measuring system inserted into the course of a process line for registering at least one measured variable of a medium flowing in the process line, said measuring system comprising:a circular-cylindrical measuring transducer, including a measuring tube which serves for conve
What is claimed is: 1. A measuring system inserted into the course of a process line for registering at least one measured variable of a medium flowing in the process line, said measuring system comprising:a circular-cylindrical measuring transducer, including a measuring tube which serves for conveying the medium to be measured and which shows a smaller flow cross section than a supply segment of the process line connected to an inlet of the measuring system;a sensor arrangement which includes at least one sensor element reacting primarily to said variable to be registered and/or reacting primarily to changes of said variable to be registered, and provides, by means of the at least one sensor element, at least one measurement signal influenced by the measured variable; anda measuring electronics communicating with the measuring transducer and producing, taking into consideration the at least one measurement signal, at least one measured value instantaneously representing the measured variable; anda flow conditioner arranged at an inlet of said measuring tube, said flow conditioner mediating between said measuring tube and the supply segment of the process line, said flow conditioner showing a lumen which tapers toward said measuring tube, and through which medium flows during operation, an inlet end of said flow conditioner, facing the supply segment of the process line, shows a flow cross section which is greater than the flow cross section of said measuring tube, and an outlet end of said flow conditioner, facing toward said measuring tube, shows a flow cross section which is smaller than the flow cross section of the inlet end of said flow conditioner, wherein:said flow conditioner includes, arranged upstream of its outlet end, at least a first inner edge protruding into the lumen of said flow conditioner and against which medium conveyed in said flow conditioner flows during operation;said flow conditioner also includes, arranged downstream from the first inner edge, at least a second inner edge likewise protruding into the lumen of said flow conditioner and against which medium conveyed in said flow conditioner flows during operation, and said flow conditioner also includes a first guide surface serving to guide medium flowing in said flow conditioner and a second guide surface serving to guide medium flowing in said flow conditioner, said first guide surface extending between the first inner edge and the second inner edge, and said second guide surface extending from the second inner edge in the direction of the outlet end of said flow conditioner, andsaid flow conditioner shows an installed length, which is smaller than an installed length of said measuring tube, so that an installed length ratio, defined by a ratio of the installed length of said flow conditioner to the install length of said measuring tube, is kept smaller than one.
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