CN110411391A - Pipeline device for detecting axial displacement and method - Google Patents
Pipeline device for detecting axial displacement and method Download PDFInfo
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- CN110411391A CN110411391A CN201910603220.6A CN201910603220A CN110411391A CN 110411391 A CN110411391 A CN 110411391A CN 201910603220 A CN201910603220 A CN 201910603220A CN 110411391 A CN110411391 A CN 110411391A
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- axial displacement
- displacement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The invention discloses a kind of pipeline device for detecting axial displacement and methods, belong to detection technique field, and pipeline device for detecting axial displacement includes: that annulus, linear transducer and displacement determine component；Annulus covers on pipeline to be detected, and soil is filled between annulus and pipeline to be detected；Linear transducer includes first end and second end, and first end is connect with the first designated position of pipeline outer wall to be detected, and the second designated position connection of second end and annulus, linear transducer is for measuring the distance between first end and second end；It is displaced and determines component, be displaced and determine that component is connect with linear transducer, be displaced the axial displacement for determining that component is used to determine pipeline to be detected according to the variation of the distance between first end and second end.It solves the problems, such as that the axial displacement of oil-gas pipeline can not be detected in the related technology, has achieved the effect that detect axial displacement.
Description
Technical field
The present invention relates to detection technique field, in particular to a kind of pipeline device for detecting axial displacement and method.
Background technique
Geological disaster refers to that the earth is abnormal energy and releases under the effect of earth internally-powered, outer power or artificial geology power
Put, the motion of matter, Rock And Soil deformation displacement and environmental abnormality variation etc., wherein Rock And Soil deformation displacement can make soil generation push away
Power is to lead to bury oil-gas pipeline generation displacement in the soil.
In the prior art, the displacement of the displacement automatic testing method detection oil-gas pipeline using a kind of based on static level.
A benchmark water tank is arranged in datum mark in this method, sets a water tank, monitoring point water tank and datum mark water tank in each monitoring point
Connection is calculated the sedimentation of monitoring point by measurement fluid change, the misalignment of oil-gas pipeline is obtained with this.
In the implementation of the present invention, discovery aforesaid way at least has following defects that above-mentioned displacement detecting to inventor
Technology is only able to detect the vertical displacement (radial displacement) of oil-gas pipeline, can not detect the axial displacement of oil-gas pipeline.
Summary of the invention
In order to solve the vertical displacement (radial displacement) for being only able to detect oil-gas pipeline in the related technology, oil gas can not be detected
The problem of axial displacement of pipeline, the embodiment of the invention provides a kind of pipeline device for detecting axial displacement and methods.The skill
Art scheme is as follows:
According to the first aspect of the invention, a kind of pipeline device for detecting axial displacement, the pipeline axial displacement inspection are provided
Surveying device includes:
Annulus, linear transducer and displacement determine component；
The annulus covers on pipeline to be detected, and is filled between the annulus and the pipeline to be detected
Soil；
The linear transducer includes first end and second end, and the first of the first end and the pipeline outer wall to be detected
Designated position connection, the second end are connect with the second designated position of the annulus, and the linear transducer is for surveying
Measure the distance between the first end and the second end；
It is displaced and determines component, the displacement determines that component is connect with the linear transducer, and the displacement determines that component is used
In the axial displacement for determining the pipeline to be detected according to the variation of the distance between the first end and the second end.
Optionally, described be displaced determines that component is used to determine that formula determines the axial displacement of pipeline to be detected according to displacement,
The displacement determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and described first end, LABFor position
The distance between the second end and the first end of the linear transducer, L before movingOBFor the second specific bit of the annulus
Set the relative distance with the pipeline to be detected, LAA'For the shift length of the pipeline to be detected.
Optionally, the outer diameter of the annulus is bigger than the internal diameter of the annulus by 20%.
Optionally, the compactness negative of the outer diameter of the annulus and the difference of internal diameter and quality and the soil
It closes.
Optionally, the annulus includes the first semi-ring and the second semi-ring, first semi-ring and second semi-ring
Flanged joint.
According to the second aspect of the invention, a kind of pipeline axial displacement detection method is provided, which comprises
By annulus ring set on pipeline to be detected；
The filling soil between the annulus and the pipeline to be detected；
The installation length sensor on the pipeline to be detected,
The linear transducer includes first end and second end, the linear transducer first end and the pipeline to be detected
First designated position of outer wall connects, and the second end is connect with the second designated position of the annulus, and the length passes
Sensor is for measuring the distance between the first end and the second end；
The axial displacement of the pipeline to be detected is determined according to the variation of the distance between the first end and the second end.
Optionally, described that the pipeline to be detected is determined according to the variation of the distance between the first end and the second end
Axial displacement, comprising:
According to the axial displacement for determining that formula determines pipeline to be detected is displaced, the displacement determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and described first end, LABFor position
The distance between the second end and the first end of the linear transducer, L before movingOBFor the second specific bit of the annulus
Set the relative distance with the pipeline to be detected, LAA'For the shift length of the pipeline to be detected.
Optionally, the outer diameter of the annulus is bigger than the internal diameter of the annulus by 20%.
Optionally, the compactness negative of the outer diameter of the annulus and the difference of internal diameter and quality and the soil
It closes.
Optionally, the annulus include the first semi-ring and the second semi-ring, with flanged joint make first semi-ring and
Second semi-ring latch closure is on the pipeline to be detected.
Technical solution provided in an embodiment of the present invention can include the following benefits:
By it is a kind of including annulus linear transducer and be displaced determine component pipeline device for detecting axial displacement,
Middle annulus covers on pipeline to be detected, and soil is filled between annulus and pipeline to be detected, linear transducer
First end is connect with the first designated position of pipeline outer wall to be detected, and the second end of linear transducer and the second of annulus refer to
Connection is set in positioning, and linear transducer is displaced for measuring the distance between first end and second end and determines that component and length sense
Device connection, for determining the axial displacement of pipeline to be detected according to the variation of the distance between first end and second end.Solves phase
The problem of axial displacement of oil-gas pipeline can not be detected in the technology of pass, has achieved the effect that detect axial displacement.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of structural schematic diagram of pipeline device for detecting axial displacement provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another pipeline device for detecting axial displacement provided in an embodiment of the present invention；
Fig. 3 is pipeline device for detecting axial displacement side view shown in Fig. 2；
Fig. 4 is a kind of flow chart of pipeline axial displacement detection method provided in an embodiment of the present invention.
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate idea of the invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Pipeline can generate certain deformation during displacement, and the deformation of pipeline, which will cause pipeline crack etc., leads to pipeline
Leakage, can judge whether pipeline is in the potential dangerous shape such as deformation by detecting the radial displacement of pipeline in the prior art
State, but be only able to detect the radial displacement of pipeline in the prior art, the axial displacement of pipeline can also generate pipeline deformation to
Cause security risk.
The embodiment of the invention provides a kind of pipeline device for detecting axial displacement and methods, are able to solve and go out in the related technology
The existing problem.
Fig. 1 is a kind of structural schematic diagram of pipeline device for detecting axial displacement provided in an embodiment of the present invention.The pipeline axis
May include: to displacement detector 10
Annulus 11, linear transducer 12 and displacement determine component 13.
11 sets of annulus on pipeline 20 to be detected, and between annulus 11 and pipeline to be detected 20 filled with soil
Earth.
Linear transducer 12 includes first end 121 and second end 122, and the of first end 121 and 20 outer wall of pipeline to be detected
The connection of one designated position 21, second end 122 are connect with the second designated position 111 of annulus 11, and linear transducer 12 is used for
Measure the distance between first end 121 and second end 122.
It is displaced and determines component 13, be displaced and determine that component 13 is connect with linear transducer 12, be displaced and determine that component 13 is used for root
The axial displacement of the pipeline to be detected is determined according to the variation of the distance between first end 121 and second end 122.
In conclusion provided in an embodiment of the present invention a kind of including annulus linear transducer and the determining component of displacement
Pipeline device for detecting axial displacement, wherein annulus covers on pipeline to be detected, and between annulus and pipeline to be detected
Filled with soil, the first end of linear transducer is connect with the first designated position of pipeline outer wall to be detected, linear transducer
Second designated position of second end and annulus connection, linear transducer be used for measure between first end and second end away from
From, it is displaced and determines that component is connect with linear transducer, it is to be checked for changing determination according to the distance between first end and second end
The axial displacement in test tube road.It solves the problems, such as that the axial displacement of oil-gas pipeline can not be detected in the related technology, has reached detection
The effect of axial displacement.
Referring to FIG. 2, it illustrates the structures of another pipeline device for detecting axial displacement provided in an embodiment of the present invention
Schematic diagram, the pipeline device for detecting axial displacement may include:
Optionally, the first end of linear transducer 12 is connect with the first designated position of 20 outer wall of pipeline to be detected, i.e. Fig. 2
In A point, A' point is the position that connect with 20 outer wall of pipeline to be detected of first end after the displacement of A point, second end and annulus
11 the second designated position connection, i.e., the B point in figure, O point are orthographic projection of the B point on pipeline 20 to be detected.Linear transducer
12 be a kind of sensor for being used to measure length that can be stretched, due to filling up soil between pipeline 20 to be detected and annulus 11
Earth 30, when radial displacement (sedimentation) occurs for pipeline 20 to be detected, annulus 11 and pipeline 20 to be detected become an entirety,
Radial displacement, i.e. O point and B occur simultaneously will not change in radial relative position.
During axial displacement occurs for pipeline 20 to be detected, second end and the annulus 11 of linear transducer 12
The B point of second designated position connection is fixed, and linear transducer 12 elongates, at this time the first end of linear transducer 12, i.e. A point
As the displacement of pipeline is moved to A' point, sensor obtains the data after movement, determines that component is available to be checked using being displaced
The shift length in test tube road.It is displaced and determines that component is connect with linear transducer 12, it is to be detected that displacement determines that component may be mounted at
It on pipeline 20, also may be mounted on annulus 11, can also be connected on the ground by wireless connection or data line
Mode is connect with linear transducer.Wherein linear transducer 12 can be type vibration wire displacement meter, be also possible to other length sensing
Device, the embodiment of the present invention are not limited thereto.
Optionally, it is displaced and determines that component is used to determine that formula determines the axial displacement of pipeline 20 to be detected, position according to displacement
It moves and determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and first end, LABTo be displaced preceding length
The distance between second end and first end of sensor, LOBIt is opposite with pipeline to be detected for the second designated position of annulus
Distance, LAA'For the shift length of pipeline to be detected.
Optionally, the outer diameter a of annulus 11 is bigger by 20% than the internal diameter b of annulus 11.Annulus 11 with it is to be detected
Filling soil 30 and by soil compression between pipeline 20, soil 30 plays a wedge action at this time, i.e., in pipeline 20 to be detected
When radial displacement occurs, annulus 11 and 20 synchronizing moving of pipeline to be detected, make annulus 11 and pipeline 20 to be detected it
Between relative position in the radial direction it is constant.Certain thickness (i.e. difference of outer diameter and internal diameter can be arranged in annulus radially
Value) so that annulus has certain weight, avoid annulus from deviating under the thrust of soil.Wherein, annulus
Outer diameter a can also be 100 millimeters bigger than the internal diameter b of annulus, and the embodiment of the present invention is it is not limited here.
Optionally, the outer diameter of annulus 11 and the difference of internal diameter and quality and the compactness of soil are negatively correlated.When to
When the filling soil for detecting 11 centre of pipeline 20 and annulus is soft soil, it can suitably increase the outer diameter of annulus 11
With the difference of internal diameter, when the outer diameter of annulus 11 and the difference of internal diameter increase, the weight of annulus 11 increases therewith.Example
Property, when annulus 11 and 20 central filler soil soil property of pipeline to be detected are softer, the diameter of pipeline 20 to be detected is 529
Millimeter, the internal diameter of annulus 11 are 1000 millimeters, and outer diameter is 1200 millimeters, and the length in axial direction is 200 millimeters.
Fig. 3 is pipeline device for detecting axial displacement side view shown in Fig. 2.Optionally, annulus 11 includes the first half
Ring 112 and the second semi-ring 113,113 flanged joint of the first semi-ring 112 and the second semi-ring.Flange connection is simple, connection can
It leans on, is convenient for disassembly and assembly, a connector in 11 front opening the first semi-ring 112 of annulus and the second semi-ring 113 is installed, it will be annular
After 11 sets of sleeve on pipeline 20 to be detected, open connector is reconnected by bolt.Also it can be used and snap connection
Deng other connection types, the embodiment of the present invention is not limited thereto.
Optionally, the first designated position of the first end of linear transducer 12 and 20 outer wall of pipeline to be detected can be bearing
Connection, it is also possible to generating deformation under the action of pipeline to be detected is in soil propelling force, bearing connection can improve according to deformation
Angle avoids the deformation of pipeline to be detected that linear transducer is caused to damage.
Optionally, protrusion can be set in the surface that annulus 11 is contacted with soil.Pipeline 20 to be detected and annular sleeve
Cylinder 11 buries in the soil, i.e. the surface of annulus is contacted with soil, and the protrusion of surface setting can increase annulus
11 with the frictional force of soil, thus the position of more stationary annular sleeve 11.
In conclusion provided in an embodiment of the present invention a kind of including annulus linear transducer and the determining component of displacement
Pipeline device for detecting axial displacement, wherein annulus covers on pipeline to be detected, and between annulus and pipeline to be detected
Filled with soil, the first end of linear transducer is connect with the first designated position of pipeline outer wall to be detected, linear transducer
Second designated position of second end and annulus connection, linear transducer be used for measure between first end and second end away from
From, it is displaced and determines that component is connect with linear transducer, it is to be checked for changing determination according to the distance between first end and second end
The axial displacement in test tube road.It solves the problems, such as that the axial displacement of oil-gas pipeline can not be detected in the related technology, has reached detection
The effect of axial displacement.
Fig. 4 is a kind of flow chart of pipeline axial displacement detection method provided in an embodiment of the present invention, under this method includes
The several steps in face:
Step 401, by annulus ring set on pipeline to be detected.
Step 402, the filling soil between annulus and pipeline to be detected.
Step 403, the installation length sensor on pipeline to be detected.
Linear transducer includes first end and second end, the first finger of linear transducer first end and pipeline outer wall to be detected
Connection is set in positioning, and the second designated position connection of second end and annulus, linear transducer is for measuring first end and second
The distance between end.
Step 404, the axial displacement that pipeline to be detected is determined according to the variation of the distance between first end and second end.
According to the axial displacement for determining that formula determines pipeline to be detected is displaced, it is displaced and determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and first end, LABTo be displaced preceding length
The distance between second end and first end of sensor, LOBIt is opposite with pipeline to be detected for the second designated position of annulus
Distance, LAA'For the shift length of pipeline to be detected.
Optionally, the outer diameter of annulus is bigger than the internal diameter of annulus by 20%.
Optionally, the outer diameter of annulus and the difference of internal diameter and quality and the compactness of soil are negatively correlated.
Optionally, annulus includes the first semi-ring and the second semi-ring, makes the first semi-ring and the second semi-ring with flanged joint
Latch closure is on pipeline to be detected.
In conclusion a kind of pipeline axial displacement detection method provided in an embodiment of the present invention, wherein annulus covers
On pipeline to be detected, and between annulus and pipeline to be detected be filled with soil, the first end of linear transducer with it is to be detected
First designated position of pipeline outer wall connects, and the second end of linear transducer and the second designated position of annulus connect, long
Degree sensor is displaced for measuring the distance between first end and second end and determines that component is connect with linear transducer, be used for root
The axial displacement of pipeline to be detected is determined according to the variation of the distance between first end and second end.Solving can not examine in the related technology
The problem of surveying the axial displacement of oil-gas pipeline has achieved the effect that detect axial displacement.
The foregoing is merely optional embodiments of the invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of pipeline device for detecting axial displacement, which is characterized in that the pipeline device for detecting axial displacement includes:
Annulus, linear transducer and displacement determine component；
The annulus covers on pipeline to be detected, and filled with soil between the annulus and the pipeline to be detected
Earth；
The linear transducer includes first end and second end, and the first end is specified with the first of the pipeline outer wall to be detected
Position connection, the second end are connect with the second designated position of the annulus, and the linear transducer is for measuring institute
State the distance between first end and the second end；
It is displaced and determines component, the displacement determines that component is connect with the linear transducer, and the displacement determines that component is used for root
The axial displacement of the pipeline to be detected is determined according to the variation of the distance between the first end and the second end.
2. pipeline device for detecting axial displacement according to claim 1, which is characterized in that the displacement determines that component is used for
According to the axial displacement for determining that formula determines pipeline to be detected is displaced, the displacement determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and described first end, LABBefore displacement
The distance between the second end of the linear transducer and the first end, LOBFor the annulus the second designated position with
The relative distance of the pipeline to be detected, LAA'For the shift length of the pipeline to be detected.
3. pipeline device for detecting axial displacement according to claim 1, which is characterized in that the outer diameter ratio of the annulus
The internal diameter of the annulus is big by 20%.
4. pipeline device for detecting axial displacement according to claim 1, which is characterized in that the outer diameter of the annulus with
The difference and quality of internal diameter and the compactness of the soil are negatively correlated.
5. pipeline device for detecting axial displacement according to claim 1, which is characterized in that the annulus includes first
Semi-ring and the second semi-ring, first semi-ring and the second semi-ring flanged joint.
6. a kind of pipeline axial displacement detection method, which is characterized in that the described method includes:
By annulus ring set on pipeline to be detected；
The filling soil between the annulus and the pipeline to be detected；
The installation length sensor on the pipeline to be detected,
The linear transducer includes first end and second end, the linear transducer first end and the pipeline outer wall to be detected
The connection of the first designated position, the second end connect with the second designated position of the annulus, the linear transducer
For measuring the distance between the first end and the second end；
The axial displacement of the pipeline to be detected is determined according to the variation of the distance between the first end and the second end.
7. pipeline axial displacement detection method according to claim 6, which is characterized in that it is described according to the first end and
The variation of the distance between described second end determines the axial displacement of the pipeline to be detected, comprising:
According to the axial displacement for determining that formula determines pipeline to be detected is displaced, the displacement determines formula are as follows:
Wherein, LA'BFor the distance between the second end of the linear transducer after displacement and described first end, LABBefore displacement
The distance between the second end of the linear transducer and the first end, LOBFor the annulus the second designated position with
The relative distance of the pipeline to be detected, LAA'For the shift length of the pipeline to be detected.
8. pipeline axial displacement detection method according to claim 6, which is characterized in that the outer diameter ratio of the annulus
The internal diameter of the annulus is big by 20%.
9. pipeline axial displacement detection method according to claim 6, which is characterized in that the outer diameter of the annulus with
The difference and quality of internal diameter and the compactness of the soil are negatively correlated.
10. pipeline axial displacement detection method according to claim 6, which is characterized in that the annulus includes the
One semi-ring and the second semi-ring make first semi-ring and the second semi-ring latch closure on the pipeline to be detected with flanged joint.
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Cited By (1)
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| CN113804138A (en) * | 2020-06-12 | 2021-12-17 | 中国石油天然气股份有限公司 | Pipeline displacement monitoring system, method and device |
| CN113804138B (en) * | 2020-06-12 | 2023-10-27 | 中国石油天然气股份有限公司 | Pipeline displacement monitoring system, method and device |
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| CN110411391B (en) | 2022-03-01 |
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