Device for the positioning of a mixing body with respect to a fluid flow area

• US 5,538,344 A
• Filed: 04/19/1994
• Issued: 07/23/1996
• Est. Priority Date: 10/24/1991
• Status: Expired due to Fees

• Current Assignee: Petrotech ASA (Umbrellastream LP, Inc.)
• Original Assignee: Petrotech ASA (Umbrellastream LP, Inc.)
• Inventors: Dybdahl, Bj.o slashed.rn
• Primary Examiner(s): Scherbel, David
• Assistant Examiner(s): Till, Terrence R.
• Application Number:
  US08/240,681
• Time in Patent Office: 826 Days
• Field of Search: 73/204.21, 73/861.32, 73/861.61, 73/861.62, 138/44, 138/45, 366/336, 366/337, 366/338, 366/340
• US Class Current: 366/340
• CPC Class Codes: B01F 25/42 in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
• CPC Class Codes: E21B 49/086 Withdrawing samples at the surface

Abstract

The invention relates to a device (2) designed and adapted to bring an in per se known mixing body (11) to correspond to a fluid flow area which e.g. is defined by a pipeline (1,3) wherein a two-phase fluid may flow, said fluid being desired to be mixed in connection with sampling (4), and to withdraw the mixing body (11) easily and rapidly in order to release said fluid flow area. For this purpose, the device according to the invention comprises a valve housing (6) formed for fluid-tight connection to said pipeline in an area of two diametrally opposite openings (1'"'"', 1") of the pipeline, enclosing said openings. Within the valve housing (6), a sluice body (5) carrying said mixing body (11) has been displaceably arranged. The sluice body (5) and thus the mixing body (11) is displaceable between two main positions. In one main position, the mixing body (11) has been brought to correspond with said fluid flow area. In the other main position, the mixing (11), through the sluice body (5), has been drawn into the valve housing (6) to a position wherein the fluid flow area has been uncovered. In the lastmentioned main position, a through-going bore (10) of the sluice body (5) can be brought to correspond with the fluid flow area, said through-going bore (10) having a diameter substantially corresponding to the diameter of the flow area of the pipeline (1,3), downstreams the sluice body (5).

Claims

1. A device for the positioning of a mixing body in a pipe comprising:

a sluice valve housing;

means for sealingly connecting the sluice valve housing to a pipe;

a sluice valve body displaceably positioned within the sluice valve housing, the sluice valve body defining first and second parallel conduits alternatively communicable with the pipe; and

a mixing body disposed within the first conduit wherein the mixing body has non-parallel channels therethrough.

2. The apparatus of claim 1 further comprising means for locking the sluice valve body within the first conduit.

3. A device for the positioning of a mixing body adapted to throttle and, thus, mix a two-phase fluid flowing in a pipe, in order intermittently to provide thoroughly mixed fluid suitable for sampling, comprising:

an elongated sluice valve housing;

means for sealingly connecting the elongated sluice valve housing permanently to the pipe,

a sluice valve body displaceably positioned within the sluice valve housing, the sluice valve body having first and second spaced, through-going, mutually parallel bores parallel to the longitudinal axis of the pipe;

means for displacing the sluice valve body in the longitudinal direction of the elongated sluice valve housing in order to make the through-going bores alternatively communicable with the pipe; and

a mixing body accommodated within the first through-going bore, the mixing body containing non-parallel through-going channels each extending substantially in the longitudinal direction of the pipe.

4. The apparatus of claim 3, in which the second through-going bore has a diameter substantially corresponding to the internal diameter of the pipe.

5. The apparatus of claim 3, further comprising means for locking the mixing body within the first through-going bore.

6. The apparatus of claim 3, in which the elongated sluice valve housing includes two spaced mutually parallel walls extending perpendicularly to the pipe, the means for sealingly connecting the sluice valve housing to the pipe comprising first and second ring flanges.

7. The apparatus of claim 3, in which a longitudinal axis of the non-parallel through-going channels of the mixing body are orientated such as to intersect each other substantially in a common imaginary point positioned on the axis of the mixing body, downstream thereof, the axis sloping gradually in a radially inwardly extending direction from an upstream to a downstream position.