초록 ▼

An assembly for accurately and easily positioning and aligning a sensor device relative to a fluid flow stream in a pipe, incorporates a threaded housing which is engageable with a standard pipe tee-fitting to provide a platform for linearly positioning the sensor relative to the axis of flow. A sen

An assembly for accurately and easily positioning and aligning a sensor device relative to a fluid flow stream in a pipe, incorporates a threaded housing which is engageable with a standard pipe tee-fitting to provide a platform for linearly positioning the sensor relative to the axis of flow. A sensor unit subassembly is rotatably supported on the platform so that it may be rotated into proper radial alignment with the flow axis while it is supported on the platform at the proper linear position relative to the flow axis. A paddlewheel flowmeter having a single leg supporting the paddlewheel axle in cantilever fashion forms the sensing unit which exploits the improved alignment accuracy of this assembly to avoid build-up of sludge and debris which might affect free rotation of the paddlewheel. Separate and independent lock-nuts fix the housing in position relative to the tee-fitting, and fix the sensor sub-assembly in position relative to the housing.

대표청구항 ▼

A linearly positionable and axially alignable sensor assembly, for separable attachment to a threaded cylindrical fitting which opens into a fluid conduit at an angle to the longitudinal axis thereof, said sensor assembly comprising: a cylindrical housing having a cylindrical axial opening therethro

A linearly positionable and axially alignable sensor assembly, for separable attachment to a threaded cylindrical fitting which opens into a fluid conduit at an angle to the longitudinal axis thereof, said sensor assembly comprising: a cylindrical housing having a cylindrical axial opening therethrough, and a threaded cylindrical surface thereon for threaded coupling with said threaded cylindrical fitting, such that said housing may be rotated so as to be advanced axially along a substantially linear path, into a desired linear position relative to the axis of the fluid conduit within said cylindrical fitting; visible marker means on said housing alignable relative to the axis of the fluid conduit by rotation of said housing when said housing is threadedly engaged with said fitting; said housing having an annular seating shoulder thereon for engaging and supporting a mating shoulder of a sensing unit, such that said seating shoulder may be positioned at a desired linear distance from the axis of the fluid conduit in said fitting, by threaded rotation of said housing within said fitting; a sensing unit insertable into said cylindrical housing, and having an annular mating shoulder for engaging and seating against the seating shoulder of said cylindrical housing in any desired radial alignment position relative to said housing, when said sensing unit is inserted therein; visible alignment means on said sensing unit alignable with said visible marker means on said housing to assure proper alignment of said sensing unit with the fluid conduit as indicated by the marker means; fastening means engageable with said housing and said sensing unit for urging the mating shoulder of said sensing unit into engagement with the seating shoulder of said housing, to retain said unit within said housing in a desired radial alignment therewith and at a desired radial distance from the axis of the fluid conduit within said cylindrical fitting.