CN210566938U

CN210566938U - Device for pipeline compensation

Info

Publication number: CN210566938U
Application number: CN201920980389.9U
Authority: CN
Inventors: 陈惠国; 王圣群
Original assignee: Shanghai Jianan Chemical Engineering Co ltd
Current assignee: Shanghai Jianan Chemical Engineering Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-05-19
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to a device for pipeline compensation, include first elbow (1) that is connected with the person in charge to and first straight tube (7), second elbow (2), second straight tube (8), third elbow (3), third straight tube (9), fourth elbow (4), fourth straight tube (10) and fifth elbow (5) of connecting in order, first elbow (1) is the acute angle elbow, second elbow (2), third elbow (3), fourth elbow (4) and fifth elbow (5) are elbow bend. Compared with the prior art, the utility model has no straight middle section which is parallel to the main pipe and has no effect on the compensation, has no return after the straight, but continues the compensation situation to move forward, realizes the direct homing after the whole circle, and obviously increases the compensation effect, including newly increasing the possible torsion and/or warpage compensation; for large-scale in-row layered pipelines, the nested compensation of the collective group of the in-row pipelines can be realized, and precious physical space is fully utilized.

Description

Device for pipeline compensation

Technical Field

The utility model relates to a pipeline compensation especially relates to a device for pipeline compensation.

Background

In the whole life cycle of a pipeline system, the pipeline pipe fittings and components at the initial section are hoisted in place, welded, connected, moved, communicated, fixed and sealed, the materials are ventilated, the temperature is raised and lowered along with the temperature of the internal and external materials along with the temperature difference between day and night and the climate change of spring, summer, autumn, winter all the year round, the pressure is raised and lowered along with the temperature of the internal and external materials, the internal and external materials are raised and lowered along with the pressure, the vibration and the vibration are carried out along with the pipeline supporting structure, the supporting structure settlement is included, and the pipeline body and accessories have repeated stretching, distortion, warping, shearing. When the stress and deformation are within the allowable stress and deformation range of the pipeline body and accessory materials, the pipeline system is safe and can be continuously operated and used. By adjusting the materials, the diameters, the wall thicknesses, the trends and the supporting structure devices of the pipelines and the accessories, and the operating pressure, the temperature, the flow and the like of media in the pipelines, the pipelines are enabled to obtain stress and displacement deformation compensation and/or buffering, the maximum stress and the maximum deformation of the pipelines and the accessories can be adjusted and reduced within a safety permission range of avoiding damage, including the load and the deformation of the supporting structure of the pipelines within the safety permission range of avoiding damage.

The compensating device for a piping system is roughly classified into two types, namely a conventional pipe body fixed type compensating device and a new type of various pipe accessory moving type compensating device in recent years.

the U-bend compensation device, the ∪ bend compensation device (using four elbows and three straight pipe sections) are used for simply and vertically steering the pipeline once, returning after straight running and returning after simply and vertically steering again, and returning to the original pipeline trend.

In recent years, various novel pipeline accessory motion type compensation devices utilize mechanical seals or other sealing structures to generate local free rotation, torsion and/or expansion to realize compensation, and the compensation devices comprise ball compensators, rotation compensators, floating head expansion compensators and the like.

for the ∪ curve compensation device and the n-bend compensation device, the ∪ curve compensation device using four elbows and three straight pipe sections is used for simply vertically turning the pipeline once, returning after straight going, and returning after simply and vertically turning again to restore the trend of the original pipeline.

To the piping lane of in bank layering arrangement pipeline, especially large-scale petrochemical industry district, large-scale liquid petrochemical industry chemical dock and storage tank district, the utility tunnel of a large amount of outsourcing steam of large-scale thermoelectricity and boiler plant etc. realize the single pipeline or many pipelines of great compensation volume, need have the novel compensation arrangement of innovative design on pipeline compensation and comprehensive utilization spatial structure resource.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a device for pipeline compensation in order to overcome the above-mentioned drawbacks of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a device for pipeline compensation, includes the first elbow that is connected with being responsible for to and first straight tube, second elbow, second straight tube, third elbow, third straight tube, fourth elbow, fourth straight tube and the fifth elbow of connecting in order, first elbow is the acute angle elbow, second elbow, third elbow, fourth elbow and fifth elbow are elbow.

Further, the first bend is at any angle between the 5-85 degree area.

Furthermore, the main pipe uses the first elbow to horizontally turn sideways, horizontally connects to the first straight pipe, then uses the second elbow to vertically turn upwards or downwards, then vertically connects to the second straight pipe, then uses the third elbow to horizontally turn, then horizontally connects to the third straight pipe, then uses the fourth elbow to vertically turn downwards or upwards, then vertically connects to the fourth straight pipe, then uses the fifth elbow to horizontally turn, and connects to the main pipe.

Furthermore, the fifth elbow is connected with the fifth straight pipe and the sixth elbow in sequence.

Further, when the fifth elbow is connected to the fifth straight pipe and the sixth elbow in sequence, the sixth elbow is the same as the first elbow.

Furthermore, the main pipe uses the first elbow to horizontally turn sideways, horizontally connects to the first straight pipe, then uses the second elbow to vertically turn upwards or downwards, then vertically connects to the second straight pipe, then uses the third elbow to horizontally turn, then horizontally connects to the third straight pipe, then uses the fourth elbow to vertically turn downwards or upwards, then vertically connects to the fourth straight pipe, then uses the fifth elbow to horizontally turn, then horizontally connects to the fifth straight pipe, and finally connects to the sixth elbow, and connects to the main pipe.

The compensation device utilizes the elbow steering to enlarge the bending deformation of the simply supported beam caused by the bending moment, enlarge the compensation amount and realize continuous steering; the original pipe positions are returned by using the exquisite arrangement and arrangement of the elbows, and the possibility of realizing compensation for the nesting of the layered and lined pipelines of the large-scale pipe gallery is provided; each pipeline elbow is used as a fulcrum of the bent simply supported beam, and a new simply supported beam is generated; forming a bent simply supported beam by utilizing the straight pipe section; the bending deformation of the simply supported beam under the bending moment is far larger than the compression and tension deformation under the same axial load. Each elbow is used for steering, the fulcrum function of the simply supported beam is realized, and the newly compensated simply supported beam is generated and realized. Each straight pipe section is used as a simply supported cross beam to generate deformation and displacement, so that compensation is realized.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. compare in traditional U curved compensation arrangement only have two sections simple beams that produce displacement deformation, traditional pi curved compensation arrangement has four sections simple beams that produce displacement deformation, the utility model discloses then have five sections simple beams that produce displacement deformation, the compensation effect is showing and is increasing, including newly-increased possible torsion and/or warpage compensation.

2. compare in traditional ∪ curved compensation arrangement and curved compensation arrangement of pi, the utility model discloses do not have the straight line interlude that does not have any effect almost and be responsible for the parallel to the compensation, do not have the return after the straight line, but continue the compensation situation and go forward, realize the direct playback of the dry and crisp ground of whole circle back to reduce the geographical space that compensates the region and include the soil resource.

3. Compare in each pipeline annex motion formula compensation arrangement in recent years, the utility model discloses do not have moving part to improve the reliability, the cost is reduced has also reduced the physical space resource.

4. For large-scale in bank layering pipelines, the nested compensation of the collective group of the in bank pipelines can be realized, precious physical space is fully utilized, and the load of the large-scale pipelines, particularly steam pipelines, large-scale pipe racks and comprehensive pipe galleries for fixing and supporting the structural load and a large amount of steel concrete resources and land resources required by realizing the structural load are reduced or even obviously reduced.

Drawings

Fig. 1 is a plan view showing the structure of the pipe compensating device of the present invention;

FIG. 2 is a side view of the pipe compensator according to the present invention;

FIG. 3 is a plan view of a symmetrical basic model;

FIG. 4 is a symmetrical base side view;

FIG. 5 is an asymmetric plan view;

FIG. 6 is an asymmetric side view;

FIG. 7 is a down-turned single-sided plan view;

FIG. 8 is a side view of a kick-down single side type;

FIG. 9 is a plan view of a bent-up single side type;

FIG. 10 is a side view of a kick-up single side type;

FIG. 11 is a plan view of an entire layer combination nesting type;

FIG. 12 is a side view of an entire tier nest;

FIG. 13 is a plan view of a partially assembled nested type;

fig. 14 is a side view of a partially assembled nested version.

The reference numbers in the figures indicate:

1. the elbow comprises a first elbow, 2, a second elbow, 3, a third elbow, 4, a fourth elbow, 5, a fifth elbow, 6, a sixth elbow, 7, a first straight pipe, 8, a second straight pipe, 9, a third straight pipe, 10, a fourth straight pipe, 11 and a fifth straight pipe.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

A device for pipeline compensation is disclosed, as shown in figure 1-2, using six elbows and five straight pipes to make the pipeline directly return to the original pipeline after six consecutive vertical slightly-inclined side turns. As shown in the figure, the pipeline firstly uses the first elbow 1 (non-90-degree elbow bend), the horizontal side body is obliquely turned, the elbow can be 60 degrees or 75 degrees, or according to other angles nested in the actual space, the horizontal connection is made into the first straight pipe 7, then the second elbow 2 (90-degree elbow bend) is vertically turned upwards (or downwards), the vertical connection is made into the second straight pipe 8, then the third elbow 3 (90-degree elbow bend) is horizontally turned, the horizontal connection is made into the third straight pipe 9, then the fourth elbow 4 (90-degree elbow bend) is vertically turned downwards (or upwards), the vertical connection is made into the fourth straight pipe 10, then the fifth elbow 5 (90-degree elbow bend) is horizontally turned, the horizontal connection is made into the fifth straight pipe 11, finally the sixth elbow 6 of the non-elbow bend with the same angle as the first elbow bend 1 is connected, and the direction of the original pipeline is returned.

When the first straight pipe 7 and the fifth straight pipe 11 have the same length, the first straight pipe is a symmetrical basic model, as shown in figures 3-4; when the first straight pipe 7 and the fifth straight pipe 11 are different in length, the first straight pipe is asymmetrical, as shown in fig. 5-6.

Example 2

A device for pipeline compensation uses five elbows and four straight pipes to make a pipeline directly return to the original pipeline trend after five times of vertical and slightly inclined side steering. As shown in the figure, the pipeline firstly uses the first elbow 1 (non-90-degree elbow), the horizontal side body is obliquely turned, the elbow can be 60 degrees or 75 degrees, or according to other angles nested in the actual space, the horizontal joint is connected into the first straight pipe 7, then the second elbow 2 (90-degree elbow) is vertically turned upwards (or downwards), the vertical joint is connected into the second straight pipe 8, then the third elbow 3 (90-degree elbow) is horizontally turned, the horizontal joint is connected into the third straight pipe 9, then the fourth elbow 4 (90-degree elbow) is vertically turned downwards (or upwards), the vertical joint is connected into the fourth straight pipe 10, finally the fifth elbow 5 (90-degree elbow) is horizontally turned, and the original pipeline direction is returned.

When the second bend 2 turns downwards, it is of the single-sided type, as shown in fig. 7-8; when the second bend 2 is turned upwards, it is of the bent-up single-sided type, as shown in fig. 9-10.

The pipe compensation devices in the embodiment 1 and the embodiment 2 are combined and nested, wherein the whole layer combination nested type is shown in figures 11-12, and the partial combination nested type is shown in figures 13-14.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The utility model provides a device for pipeline compensation, its characterized in that includes first elbow (1) that is connected with being responsible for to and first straight tube (7), second elbow (2), second straight tube (8), third elbow (3), third straight tube (9), fourth elbow (4), fourth straight tube (10) and fifth elbow (5) that connect in order, first elbow (1) is the acute angle elbow, second elbow (2), third elbow (3), fourth elbow (4) and fifth elbow (5) are elbow bend.

2. A device for pipe compensation according to claim 1, characterised in that the first bend (1) is at any angle between the 5 and 85 degrees area.

3. A device for pipe compensation according to claim 1, characterized in that the main pipe is turned horizontally sideways by means of a first bend (1), horizontally into a first straight pipe (7), turned vertically upwards or downwards by means of a second bend (2), then vertically into a second straight pipe (8), turned horizontally by means of a third bend (3), then horizontally into a third straight pipe (9), turned vertically downwards or upwards by means of a fourth bend (4), then vertically into a fourth straight pipe (10), turned horizontally by means of a fifth bend (5), and then into the main pipe.

4. A device for pipe compensation according to claim 1, characterised in that the fifth bend (5) connects in series a fifth straight pipe (11) and a sixth bend (6).

5. A device for pipe compensation according to claim 4, characterized in that the sixth bend (6) is identical to the first bend (1) when the fifth bend (5) connects in series the fifth straight pipe (11) and the sixth bend (6).

6. A device for pipe compensation according to claim 5, characterized in that the main pipe is turned horizontally sideways by means of a first bend (1), horizontally into a first straight pipe (7), then vertically upwards or downwards by means of a second bend (2), then vertically into a second straight pipe (8), then horizontally by means of a third bend (3), then horizontally into a third straight pipe (9), then vertically downwards or upwards by means of a fourth bend (4), then vertically into a fourth straight pipe (10), then horizontally by means of a fifth bend (5), then horizontally into a fifth straight pipe (11), and finally into a sixth bend (6), to be connected to the main pipe.