RU2686957C1 - Vibration suppressing device - Google Patents

Abstract

FIELD: pipeline transport.

SUBSTANCE: invention relates to pipeline transport and can be used in the construction of pipelines to suppress vibration thereof. Device contains installed on the pipeline clamp, swivel stand, blade compensator, including a horizontal blade and vertical multi-sized blades, with a paddle compensator located in a container with liquid in which a fluid damper is placed.

EFFECT: technical result – reduction of vibration levels in the three-dimensional coordinate system.

1 cl, 1 dwg

Description

The invention relates to pipeline transport and can be used in the construction of pipelines to suppress their vibration.

The pneumohydroaccumulators are known - damping devices or pressure pulsation dampers (info@areopag-spb.ru), which make it possible to achieve the most even supply of the dosed liquid and eliminate excessive pressure values at the peaks of the pulsations.

A disadvantage of the known pneumohydroaccumulators is that they dampen the vibration only from the flow of the transported product and do not dampen the vibration arising from the working equipment. Also with their help it is impossible to extinguish vibration in a certain direction.

The closest in technical essence and the achieved result to the claimed vibration suppression device is a suspension with adjustable stiffness that is installed on the pipeline support (the article “Methods for reducing pipeline vibration”, by Begayeva G.P. see nf-innovate.com> files> BEGAEVA), containing resiliently deformable elements, placed inside the clamp covering the pipeline. The stiffness of the resiliently deformable suspension elements is changed by screwing in the adjusting screws radially located on the outer part of the clamp, which allows to obtain a large variety of stiffness fields of the suspensions.

A disadvantage of the known pipeline support is that it does not compensate for the axial vibrations of the pipeline.

The aim of the present invention is to provide a vibration suppression device providing:

- suppression of pipeline vibration in the axial, vertical and transverse directions;

- installation without additional modification of the pipeline.

This goal is achieved through the use of a paddle compensator mounted on a rotating stand mounted on the pipeline, and a container with liquid.

The essence of the present invention lies in the fact that the claimed device vibration suppression, containing installed on the pipe clamp according to the invention, further comprises mounted on the clamp swivel stand with a paddle compensator, which is located in a container with a liquid; different-sized blades located vertically in mutually perpendicular planes on a rotating stand compensate for pipeline vibrations in the axial and transverse directions, the horizontal blade compensates for its vertical oscillations, while adjusting the levels of suppressed vibration is due to a change in the area suppressing the vibration that occurs when the rotating stand rotates around its axes, for axial and transverse vibration, as well as the level of filling the liquid in the container, for damping vertical vibration, and changing iem fluid density, to absorb vibration in all directions.

The drawing shows the structure of a vibration suppression device, where:

1 - pipeline;

2 - clamp;

3 - swivel stand;

4 - blade compensator;

5 - horizontal blade;

6 - differently sized blades;

7 - capacity;

8 - liquid;

9 - liquid damper.

On the pipe 1 clamps 2 fixed rotary tripod 3 with a paddle compensator 4, which consists of a horizontal blade 5 and different-sized blades 6, arranged vertically in mutually perpendicular planes on a rotary tripod 3. Paddle compensator 4 is placed in the tank 7 with liquid 8. Capacity 7 is equipped liquid damper 9.

The inventive design works as follows.

The vibration of the pipeline 1 through the rotary tripod 3 and paddle compensator 4 is transmitted to the liquid, which dampens the vibration. Adjusting the levels of suppressed vibration in the horizontal plane is carried out by rotating the rotary support 3 around its axis. Due to the difference in the sizes B and C (width of different-sized blades 6), the level (amplitude) of the suppressed vibration in the axial and transverse directions changes when the rotary support 3 rotates. After adjustment, the swiveling stand 3 is fixed in the optimum position. Any fixation mechanism. Adjusting the levels of suppressed vibration in the vertical plane is carried out by changing the level H of the liquid 8. Additional regulation of the level of suppressed vibration is carried out by changing the density of the liquid 8.

To prevent splashing of the liquid 8, the container 7 is equipped with a damper fluid 9.

The proposed design of the vibration suppression device provides a reduction of vibration levels in the three-dimensional coordinate system X, Y, Z.

Claims (1)

A vibration suppression device comprising a collar mounted on the pipeline, characterized in that it further comprises a rotatable support mounted on the collar with a paddle compensator, which is located in the liquid container; different-sized blades located vertically in mutually perpendicular planes on a rotating stand compensate for pipeline vibrations in the axial and transverse directions, the horizontal blade compensates for its vertical oscillations, while adjusting the levels of suppressed vibration is due to a change in the area suppressing the vibration that occurs when the rotating stand rotates around its axes, for axial and transverse vibration, as well as the level of filling the liquid in the container, for damping vertical vibration, and changing iem density of a liquid to absorb vibration in all directions.

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