RU2306544C1 - Sampler-batcher - Google Patents

Abstract

FIELD: investigating or analyzing of materials.

SUBSTANCE: sampler-batcher comprises pipeline and housing made of a branch pipe with the hollow rod. The hollow rod is tightly connected with the pipeline and is made of a branch pipe with the beveled end and radial openings. The radial openings face against the fluid flow and arranged at the end of the hollow rod opposite to the beveled end. The pipeline has a narrowing downstream of the hollow rod. The second end of the branch pipe is tightly connected with the pipeline downstream of the narrowing in the zone of reduced pressure. The branch pipe is provided with bushing that has inner space and two branch pipes and is mounted for permitting arrested axial movement. The branch pipe is overlapped by a baffle. The radial passages are made in the branch pipe from both sides of the baffle. The radial passages are in communication with the inner space of the bushing. The radial passages are tightly overlapped by the bushing when it moves.

EFFECT: enhanced reliability.

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Description

The invention relates to the extraction, collection, preparation and transport of liquid and gas products and can be used in oil and gas producing, oil and gas refining and oil transportation or other enterprises where work is carried out on sampling liquid from pipelines.

A known sampler and method for sampling liquid (RF patent No. 2157889, IPC 7 ЕВВ 49/08, G012N 1/10, publ. In bull. No. 29 from 10/20/2000), comprising a housing with a cavity for accumulating the liquid phase with a cover in the lower part, with a filtering device and a drainage device, while the body of the sampler is rigidly fixed outside the bottom of the pipeline or technological apparatus, the filtering device is installed inside the body between the cavities of the pipeline and the sampler, completely overlapping the cross section ensuring their hydrodynamic communication, and the drain device is mounted on a fitting rigidly mounted on the body of the sampler in the lower part of the cavity of the sampler.

The disadvantages of this device are

firstly, the samples taken have a distorted composition, since the sampler body is located below and when the liquid flows through the pipeline, it delaminates, while the heavier liquid fractions located below come into the body, and the lighter liquid fractions located above pass sampler body;

secondly, when the fluid flows through the pipeline, the filter device placed inside the housing is clogged with mechanical impurities, and therefore, for sampling, it is necessary to clean it regularly, and this requires constant monitoring.

A sampling device is known (RF patent for utility model No. 40391, IPC 7 ЕВВ 49/08, F17D 3/10, published in Bulletin No. 25 dated 09/10/2004) mounted on the main pipeline and made in two sections, fixed to the main pipeline by means of flange connections, and equipped with adjustable three-way ball valves, a select valve and pressure gauge, while the three-way ball valves are connected by a shaft with a control lever with the ability to alternately cut off one of the sections, and each of the sections is made with the possibility of skipping all fluid flow, moreover, one of the sections is bypassed, and the other is a sampling (measured) with the possibility of sampling with coverage of the cross section of the fluid flow without loss.

The disadvantages of this device are

firstly, the complexity of the design, due to the large number of nodes and parts, as well as cumbersomeness and metal consumption;

secondly, with frequent sampling, the details of the selection tap wear out and it loses its tightness, which reduces the life of the device as a whole and requires an audit of the sealing elements of the selection tap or its complete replacement.

The closest in technical essence is a sampler (RF patent for utility model No. 47971, IPC 7 ЕВВ 49/08 A, G01N 1/10 V, published in bulletin No. 25 dated 09/10/2005), containing a pipeline, a housing in in the form of a pipe welded to the pipeline and a hollow rod with a valve, while the hollow rod is rigidly and hermetically connected to the body and made in the form of a pipe smaller than the section with a tapered end abutting diametrically opposite side from the mount with the body and radial holes that are placed against the flow of fluid, etc. and this slice of the beveled end is placed on the opposite side of the radial holes of the hollow rod.

The disadvantages of this sampler are

firstly, the low quality of the samples taken, since the body is welded to the pipeline from below and a settling zone forms above the valve, where heavier components of the liquid accumulate, which displace the lighter ones and when they open the valve (sampling), they fall into the container, which is negative affects the quality of the sample taken;

secondly, only an instant sampling is made, by which it is difficult to judge the component composition of the sampled liquid, since there is no constant volume of sampled.

The objective of the invention is to improve the quality of sampling with the possibility of accumulating samples of a strictly defined volume.

The technical problem is solved by the proposed sampler-dispenser containing a pipe, a housing in the form of a pipe with a hollow rod rigidly and hermetically connected to the pipe, while the hollow rod is made in the form of a pipe with a beveled end and radial holes that are placed against the fluid flow from the opposite cut of the beveled end of the hollow stem side.

What is new is that the pipe behind the hollow stem is equipped with a restriction in the fluid flow and the other end of the pipe is hermetically connected to the pipe for its restriction in the reduced pressure zone, while a sleeve with an internal cavity and two opening pipes is installed on the pipe with the possibility of tight axial limited movement , while the pipe is blocked by a partition, on both sides of which are made in the pipe radial channels communicating with the inner cavity of the sleeve and hermetically closed by the sleeve when it moving.

The drawing shows the proposed sampler-dispenser in longitudinal section in the initial position.

The sampler-dispenser contains a pipe 1, a body in the form of a pipe 2 with a hollow rod 3. The hollow rod 3 is rigidly and hermetically connected to the pipe 1, while the hollow rod 3 is made in the form of a pipe with a beveled end 4 and radial holes 5 that are placed against the flow fluid from the opposite cut of the beveled end 4 of the side of the hollow rod 3.

The pipe 1 behind the hollow stem 3 is equipped with a restriction 6 along the fluid flow, and the second end 7 of the pipe 2 is hermetically connected to the pipe 1 for its restriction 6 in the low pressure zone.

A sleeve 8 with an internal cavity 9 and two opening pipes 10 and 11 is mounted on the pipe 2 with the possibility of tight axial displacement of the pipe. The pipe 2 is blocked by a partition 12, on both sides of which are made in the pipe 2 radial channels 13 and 14 communicating with the internal cavity 9 of the sleeve 8 and hermetically sealed by sleeve 8 when moving it.

The axial movement of the sleeve 8 is limited by annular beads 15 and 16, respectively made on the pipe 2 and on the second end 8 of the pipe 2. In order to prevent unauthorized fluid flows on the mating surfaces of the pipe 2 and the sleeve 8, the sealing rings 17 are installed.

The sampler-dispenser operates as follows.

The opening nozzles 10 and 11 of the sleeve 8 are closed (see drawing). In the initial position, the sleeve 8 is abutted in the annular flange 15 of the pipe 2, while the radial channels 13 and 14 of the pipe 2 are able to communicate with each other by means of the internal cavity 9 of the sleeve 8. The fluid flows in two flows.

The first flow continues to move along the main pipe 1 and moves further through the restriction 7, while a reduced pressure is created in the pipe 1 in the zone of the connection of the second end 8 of the pipe 2 to the pipe 1 behind its restriction 7.

In this regard, the second fluid flow through the radial holes 6 enters the hollow rod 3 and reaches the septum 12 through the pipe 2 of the body, where it enters the internal cavity 9 of the sleeve 8 through the radial channels 13, filling it, since the opening pipes 10 and 11 are closed.

As the inner cavity 9 of the sleeve 8 is filled, the fluid flow through the radial channels 14, made in the pipe 2 from the side of the second end 8 of the pipe 2, enters the second end 8 of the pipe 2, through which it enters the pipe 1 for narrowing 7.

Thus, the liquid (sample) in the inner cavity 9 of the sleeve 8 is constantly updated. The volume of the internal cavity 9 of the sleeve 8 is selected in advance depending on the required sample volume and is set by the overall dimensions of the sleeve 8.

To take a sample, the sleeve 8 is moved mechanically from the annular collar 15 of the pipe 2 to the stop in the annular collar 16 of the second end 8 of the pipe 2, while the internal cavity 9 of the sleeve 8 is hermetically cut off from the pipe 2 by the sealing rings 17, and the radial channels 13 and 14 of the pipe 2 also hermetically by means of o-rings 17 are closed by sleeve 8. Open the opening pipe 10 and / or 11 and pour the sample accumulated in the internal cavity 9 of the sleeve 8 into a special container (not shown).

At the end of the discharge of the accumulated sample, the opening nozzles 10 and 11 are closed, then the sleeve 8 is mechanically moved to its original position (see drawing) until it stops in the annular flange 15 of the nozzle 2.

The sampler is ready for reuse.

The proposed sampler-dispenser can improve the quality of sampling due to the absence of settling zones and constant update of the sample due to the movement of the sampled fluid flow, and the possibility of accumulating samples of a strictly defined volume gives a more objective assessment of the component composition of the sampled sample.

Claims (1)

A sampler-dispenser comprising a pipeline, a body in the form of a pipe with a hollow rod rigidly and hermetically connected to the pipe, the hollow rod is made in the form of a pipe with a beveled end and radial holes that are placed against the fluid flow from the opposite cut of the beveled end of the side of the hollow rod characterized in that the pipeline behind the hollow rod is equipped with a restriction in the fluid flow, and the second end of the pipe is hermetically connected to the pipeline for its restriction in the zone of reduced pressure, with ke to sealingly limited axial movement of a sleeve with an internal cavity and the two opening nozzles, the nozzle is blocked by a partition, the two sides of which are made in the pipe radial ducts communicating with the interior of the sleeve and sealingly overlapping the sleeve during its movement.