A retractable flow conditioner that includes a body adapted for insertion into a fluid in a confined conduit upstream of a differential pressure measuring probe. The body has at least one flow conditioning element. The retractable flow conditioner also includes a mounting assembly attached to the bo
A retractable flow conditioner that includes a body adapted for insertion into a fluid in a confined conduit upstream of a differential pressure measuring probe. The body has at least one flow conditioning element. The retractable flow conditioner also includes a mounting assembly attached to the body. The mounting assembly is configured to retractably mount the body into the confined conduit.
대표청구항▼
1. A retractable flow conditioner, comprising: a body insertable into a fluid in a confined conduit upstream of a differential pressure measuring probe in the confined conduit, the body having at least one flow conditioning element; anda mounting assembly, attached to the body, which retractably mou
1. A retractable flow conditioner, comprising: a body insertable into a fluid in a confined conduit upstream of a differential pressure measuring probe in the confined conduit, the body having at least one flow conditioning element; anda mounting assembly, attached to the body, which retractably mounts the body to the confined conduit, wherein the body including the at least one flow conditioning element are retractable from the confined conduit. 2. The retractable flow conditioner of claim 1, wherein the body is cylindrical in shape. 3. The retractable flow conditioner of claim 1, wherein the at least one flow conditioning element is a plurality of vanes. 4. The retractable flow conditioner of claim 1, wherein the at least one flow conditioning element is a plurality of tubular openings. 5. The retractable flow conditioner of claim 1 and wherein the mounting assembly comprises at least one of compression fittings, flange connections, worm gear assemblies or hanger assemblies. 6. The retractable flow conditioner of claim 1, wherein the body comprises flexible walls and further comprises expansion means for widening the body. 7. The retractable flow conditioner of claim 6, wherein the expansion means includes: a threaded shaft having threads and disposed within the body on a longitudinal axis of the body,a nut having threads engaging with the threads of the threaded shaft, anda plurality of ribs pivotally attached to the nut and the flexible walls of the body. 8. The retractable flow conditioner of claim 1 and wherein the at least one flow conditioning element comprises a flow straightening element and a flow blocking element. 9. A differential pressure fluid flow measuring system for measuring a rate of fluid flow through a fluid carrying conduit, the system comprising: a differential pressure measuring probe positioned in the conduit having a lateral width;a retractable flow conditioner comprising: an elongate body, a portion of which is retractably insertable into the conduit, the elongate body disposed upstream of and parallel to the differential pressure measuring probe, the elongate body having a lateral width greater than the lateral width of the differential pressure measuring probe; andopenings formed within the elongate body permitting fluid carried by the conduit to flow through the elongate body to the differential pressure measuring probe. 10. The differential pressure fluid flow measuring system of claim 9, further comprising a plurality of vanes within the openings formed in the elongate body. 11. The differential pressure fluid flow measuring system of claim 9, further comprising a plurality of tubes within the openings formed in the elongate body. 12. The differential pressure fluid flow measuring system of claim 9, wherein the elongate body comprises flexible walls and further comprises expansion means for widening the elongate body. 13. The differential pressure fluid flow measuring system of claim 12, wherein the expansion means includes: a threaded shaft having threads and disposed within the elongate body on a longitudinal axis of the elongate body,a nut having threads engaging with the threads of the threaded shaft,a pair of ribs pivotally attached to the nut and the flexible walls of the elongate body, andwherein rotating the threaded shaft drives the nut along the shaft changing the relative position of the nut to the attachment point of the ribs to the flexible walls to alter the width of the elongate body. 14. The differential pressure fluid flow measuring system of claim 9, wherein the differential pressure measuring probe comprises an averaging pitot tube. 15. The differential pressure fluid flow measuring system of claim 9, further comprising a pressure transducer coupled to the averaging pitot tube. 16. A flow conditioner for retractable insertion within a fluid-carrying conduit to condition a flow of the fluid within the conduit upstream of a differential pressure measuring probe positioned in the conduit, the flow conditioner comprising: an elongate body retractably insertable into the conduit including a flow conditioning element; andopenings formed within the elongate body permitting fluid carried by the conduit to flow through the elongate body;wherein the body including the flow conditioning element are retractable from the confined conduit. 17. The flow conditioner of claim 16, further comprising a plurality of vanes within the openings formed in the elongate body. 18. The flow conditioner of claim 16, further comprising a plurality of tubes within the openings formed in the elongate body. 19. The flow conditioner of claim 16, wherein the elongate body comprises flexible walls and further comprises expansion means for widening the elongate body. 20. The flow conditioner of claim 19, wherein the expansion means includes: a threaded shaft having threads and disposed within the elongate body on a longitudinal axis of the elongate body,a nut having threads engaging with the threads of the threaded shaft,a pair of ribs pivotally attached to the nut and the flexible walls of the elongate body, andwherein rotating the threaded shaft drives the nut along the shaft changing the relative position of the nut to the attachment point of the ribs to the flexible walls to alter a width of the elongate body.
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이 특허에 인용된 특허 (10)
Garnett, John Everett; Ifft, Stephen Arthur, Conditioning orifice plate with pipe wall passages.
Harbaugh James B. (Lakewood CO) Brooks Edward F. (Lawndale CA) Alston Norman A. (Boulder CO), Method and apparatus for stabilizing the flow coefficient for pitot-type flowmeters with a downstream-facing port.
Shanahan Eugene Miles ; Garnett John Everett ; Gray Robert James ; Dragnea Gabriel, Method for calibrating a differential pressure fluid flow measuring system.
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