CN207850571U - A kind of stress mornitoring instrument of buried pipeline - Google Patents
A kind of stress mornitoring instrument of buried pipeline Download PDFInfo
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- CN207850571U CN207850571U CN201820249911.1U CN201820249911U CN207850571U CN 207850571 U CN207850571 U CN 207850571U CN 201820249911 U CN201820249911 U CN 201820249911U CN 207850571 U CN207850571 U CN 207850571U
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- free axle
- ship shape
- buried pipeline
- shape carrier
- holder
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Abstract
The utility model is suitable for field of non destructive testing, a kind of stress mornitoring instrument of buried pipeline is provided, including ship shape carrier, it is fixed with holder in the ship shape carrier, is provided with gravity bob in the holder, the gravity bob includes vertical upper and lower free axle, there is cross-piece between upper and lower free axle, the shaft connection corresponding with two support arms of cross-piece of wherein upper and lower free axle, upper free axle are fixed with the cradle top, and lower free axle is fixed with linear transducer array.Should tension gauge device probe ground proximity, the stress magnetic signal of maximum intensity can be obtained；Secondly the form of gravity bob is used; the probe posture adjust automatically in detection process is carried out; avoid unnecessary signal interference; in addition; using unique ship shape carrier, ship shape carrier adapts to a variety of earth's surfaces, protects probe group to the greatest extent; external interference is avoided, ensure that detection of the instrument to faint magnetic signal.
Description
Technical field
The utility model belongs to the stress mornitoring instrument of field of non destructive testing more particularly to a kind of buried pipeline.
Background technology
Buried pipeline relates generally to industrial production and daily life.In industrial production, generally transported using buried pipeline
The means of production such as oil transportation gas.In oil field, oil plant, chemical plant etc., buried pipeline is seen everywhere.
The stress mornitoring of buried pipeline is a big challenge.Buried pipeline is all easy during processing, installing and using
Generate stress.The sustainable development of these stress, it is possible to cause stress corrosion or fatigue damage, lead to the mechanicalness of pipeline
It can decline.In the case where buried pipeline delivers the danger mediums such as inflammable and explosive, the decline of this mechanical performance is a great
Security risk, it should exclude.On the other hand, the detection of stress lacks perfect technology and is buried especially in the case of digging-free
The stress mornitoring of ground pipeline has the challenge of many aspects.
The current main bugbear of buried pipeline digging-free stress mornitoring is the faint stress signal of buried pipeline and detection scene
The contradiction of various noises.First, buried pipeline itself is because the magnetic signal of stress generation is natively small.In addition, because underground pipe
The reason of road buried depth, this signal is more difficult to be detected.Meanwhile in actually detected, the mechanical shaking etc. of detecting instrument,
Various noises are also resulted in, the detection of instrument is influenced.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of stress mornitoring instruments of buried pipeline, it is intended to
It solves in existing buried pipeline stress mornitoring, signal is small, noise is big, earth's surface bad adaptability, ground are walked the weak technology of ability and asked
Topic.
The utility model adopts the following technical solution：
The stress mornitoring instrument of the buried pipeline includes ship shape carrier, and holder is fixed in the ship shape carrier, described
Gravity bob is provided in holder, the gravity bob includes vertical upper free axle and lower free axle, freely up and down has ten between axis
One support arm rotating shaft of word part, the upper free axle and cross-piece connects, another support arm rotating shaft of the lower free axle and cross-piece
Connection, the upper free axle are fixed with the cradle top, and the lower free axle is fixed with linear transducer array.
Further, it is rectangle frame at left and right sides of the holder, top is connected by upper boom between two rectangle frames, bottom
It is connected by lower beam.
Further, at the top of the upper free axle and bottom of lower free axle is both provided with groove, the linear transducer array packet
Hanging frame is included, has cross-arm, the hanging frame periphery that several probes, the upper boom of the holder are installed among the hanging frame
Matching grooves with upper free axle and fixation, matching grooves and fixation of the cross-arm of the hanging frame with lower free axle.
Further, an operating lever is extended at the back side of the holder obliquely, it is fixed in the operating lever there are one
Detector host.
Further, ship shape carrier bottom surface is plane.
Further, ship shape carrier bottom surface is additionally provided with two downwardly projecting gib blocks.
Further, there are one displacement code wheels for the tail portion installation of the ship shape carrier.
Further, the forward section of ship shape carrier front end connects a traction rope.
The utility model has the beneficial effects that：First, should tension gauge device probe ground proximity, can obtain maximum strong
The stress magnetic signal of degree, improves the detectability of instrument；Second, using the form of gravity bob, carry out in detection process
Probe posture adjust automatically, avoids unnecessary signal interference, improves the sensitivity of instrument, further improve instrument
Detectability；Third, using unique ship shape carrier, ship shape carrier adapts to a variety of earth's surfaces, including municipal greening, meadow,
The unfavorable earth's surface such as marsh, soil and desert, protects probe group, avoids external interference, ensure that instrument pair to the greatest extent
The detection of faint magnetic signal.
Description of the drawings
Fig. 1 is the structure chart of the stress mornitoring instrument for the buried pipeline that the utility model embodiment provides；
Fig. 2 is the location diagram of holder, gravity bob and linear transducer array；
Fig. 3 is the structure chart of gravity bob；
Fig. 4 is the structure chart of ship shape carrier.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In order to illustrate technical solution described in the utility model, illustrated below by specific embodiment.
As shown in Figs. 1-3, the stress mornitoring instrument of buried pipeline provided in this embodiment includes ship shape carrier 1, the ship
It is fixed with holder 2 in shape carrier 1, gravity bob 3 is provided in the holder 2, the gravity bob 3 includes upper free axle 31 vertically
With lower free axle 32, freely up and down there are cross-piece 33, the upper free axle 31 and a support arm rotating shaft of cross-piece 33 to connect between axis
It connects, the lower free axle 32 is connect with another support arm rotating shaft of cross-piece 33, and the upper free axle 31 and 2 top of the holder are solid
Fixed, the lower free axle 32 is fixed with linear transducer array 4.
In this structure, stress mornitoring instrument bottom is ship shape carrier, as shown in figure 4, ship shape inside carrier sinks to forming storehouse
Body, forward section are outwardly directed horn structure.It is that on the one hand probe can be as far as possible close to ship using the reason of ship shape carrier
Bottom, to ground proximity；On the other hand, ship shape carrier maximum can protect probe, prevent influence of the detection environment to probe.
These possible influence factors include weeds, twig, mud, water, sandstone etc..If being not excluded for these influence factors,
The mechanical shaking etc. of probe, can sharply increase.Using ship shape carrier, a variety of earth's surface interference can be effectively excluded.
The bottom surface of ship shape carrier is plane, mainly expands the contact with ground, further increases the stabilization of detecting instrument
Property.The friction and loss on ship shape carrier and ground, which are one, to be solved the problems, such as.In the present embodiment, 1 bottom of ship shape carrier
Face is additionally provided with two downwardly projecting gib blocks 11.Bottom reinforcement and wear-out part of the gib block as ship shape carrier.It is oriented to
Item is made using non-magnetic material, can be used plastic material, can also be used light-weight metal material.In detection process, it is oriented to
Item can be the most abundant with earth's surface contact, can play the role of keeping instrument straight ahead.It can also be carried in practice in ship shape
Wheel is installed under tool or side, uses roller structure.
Due to being susceptible to a variety of landform during atual detection, ship shape carrier is with earth's surface form adaptive to each side
To inclination.This multidirectional inclination, can influence the detection of stress magnetic signal.Under general use environment, automatic posture harmonizes cloud
Such issues that platform can solve.But it includes that servo motor or other electric mechanicals are set to harmonize holder due to automatic posture
It is standby.These electro mechanical devices itself have magnetic field, or generate magnetic signal, can generate interference to the magnetic signal of buried pipeline,
So being not appropriate for.The utility model in order to solve the problems, such as this, using weight put structure type, including two it is orthogonal from
By axis, it is separately connected the holder and linear transducer array of detecting instrument.In the process of walking, even if shaking, the weight of linear transducer array
The heart remains at the underface of two free axles.In detection, by the gravity of linear transducer array itself, make the probe of linear transducer array
Holding and the constant angle of horizontal plane in the detection, improve detection accuracy.On the top of ship shape carrier and holder, can other than
Add a cover board, further protects the critical components such as linear transducer array.
As a kind of concrete structure of the holder 2,2 left and right sides of the holder is rectangle frame 21, two rectangle frames 21
Between top connected by upper boom 22, bottom is connected by lower beam 23.The bottom at the upper free axle 31 top and lower free axle 32
Portion is both provided with groove, and the linear transducer array 4 includes hanging frame 41, there is cross-arm 42 among the hanging frame 41, described outstanding
Several probes 43 of 41 periphery of frame installation, the upper boom 22 of the holder 2 and the matching grooves of upper free axle 31 and fixation are hung, it is described
Matching grooves and fixation of the cross-arm 42 of hanging frame with lower free axle 32.
In order to facilitate pushing instrument to walk on the ground, an operating lever 5 is extended at the back side of the holder 2 obliquely,
It is fixed in the operating lever 5 that there are one detector hosts 6.The operating lever is mounted on holder using the connection type of quick coupling
The back side neatly can connect or remove, convenience in transport operation.Fixed detection host carries out at data in operating lever simultaneously
The screen of reason, analysis, display and storage etc., detector host is touch screen, the operation interface as stress mornitoring instrument.
In detection process, if necessary to record the position of stress mornitoring instrument, it can also pacify in the tail portion of ship shape carrier
A displacement code wheel (not shown) is filled, displacement code wheel is as displacement sensor, according to turnning circle register instrument row
Distance is walked, range measurement can be as accurate as millimeter.In practice, a wireless location system can be installed on holder.Especially
, global position system may be used, positioning record is carried out to detection site and data.
The forward section of ship shape carrier front end connects a traction rope (not shown).It is relatively rough in earth's surface,
Or in the case that earth's surface resistance ratios are larger, traction rope can be used, a tractive force is provided to detecting instrument.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (8)
1. a kind of stress mornitoring instrument of buried pipeline, which is characterized in that including ship shape carrier, be fixed in the ship shape carrier
Holder, is provided with gravity bob in the holder, and the gravity bob includes vertical upper free axle and lower free axle, freely up and down axis
Between have a cross-piece, a support arm rotating shaft of the upper free axle and cross-piece connects, the lower free axle and cross-piece it is another
Support arm rotating shaft connects, and the upper free axle is fixed with the cradle top, and the lower free axle is fixed with linear transducer array.
2. the stress mornitoring instrument of buried pipeline as described in claim 1, which is characterized in that be rectangle at left and right sides of the holder
Frame, top is connected by upper boom between two rectangle frames, and bottom is connected by lower beam.
3. the stress mornitoring instrument of buried pipeline as claimed in claim 2, which is characterized in that at the top of the upper free axle and it is lower from
Groove is both provided with by the bottom of axis, the linear transducer array includes hanging frame, there is cross-arm among the hanging frame, described outstanding
It hangs frame perimeter and several probes, matching grooves and fixation of the upper boom of the holder with upper free axle, the hanging frame is installed
Cross-arm and lower free axle matching grooves and fixation.
4. the stress mornitoring instrument of buried pipeline as described in claim any one of 1-3, which is characterized in that the back side of the holder
Extend an operating lever obliquely, fixed in the operating lever there are one detector hosts.
5. the stress mornitoring instrument of buried pipeline as claimed in claim 4, which is characterized in that ship shape carrier bottom surface is flat
Face.
6. the stress mornitoring instrument of buried pipeline as claimed in claim 5, which is characterized in that ship shape carrier bottom surface is also set up
There are two downwardly projecting gib blocks.
7. the stress mornitoring instrument of buried pipeline as claimed in claim 6, which is characterized in that install the tail portion of the ship shape carrier
There are one displacement code wheels.
8. the stress mornitoring instrument of buried pipeline as claimed in claim 7, which is characterized in that the fore of ship shape carrier front end
Part connects a traction rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249911.1U CN207850571U (en) | 2018-02-11 | 2018-02-11 | A kind of stress mornitoring instrument of buried pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249911.1U CN207850571U (en) | 2018-02-11 | 2018-02-11 | A kind of stress mornitoring instrument of buried pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207850571U true CN207850571U (en) | 2018-09-11 |
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ID=63409734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249911.1U Active CN207850571U (en) | 2018-02-11 | 2018-02-11 | A kind of stress mornitoring instrument of buried pipeline |
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| CN (1) | CN207850571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067171A (en) * | 2020-09-15 | 2020-12-11 | 南昌航空大学 | Internal detection device and method for oil-gas pipeline alternating-current electromagnetic field stress imaging |
-
2018
- 2018-02-11 CN CN201820249911.1U patent/CN207850571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067171A (en) * | 2020-09-15 | 2020-12-11 | 南昌航空大学 | Internal detection device and method for oil-gas pipeline alternating-current electromagnetic field stress imaging |
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