CN205246007U - Damaged monitor sensor system of pipeline under pressure welding seam - Google Patents
Damaged monitor sensor system of pipeline under pressure welding seam Download PDFInfo
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- CN205246007U CN205246007U CN201520922372.XU CN201520922372U CN205246007U CN 205246007 U CN205246007 U CN 205246007U CN 201520922372 U CN201520922372 U CN 201520922372U CN 205246007 U CN205246007 U CN 205246007U
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- weld seam
- strain hoop
- hoop
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Abstract
Damaged monitor sensor system of pipeline under pressure welding seam, belong to the sensor technology field, in particular to a to damaged monitor sensor system of pipeline under pressure welding seam's structure design. Its characterized in that includes: sealed fibre cloth, sealing ring, detection device, sealed fibre cloth winding forms fibre cloth ring in pipeline welding seam department, the sealing ring is adorned in the both sides of fibre cloth ring, will seal fibre cloth lock ring and on the pipeline wall, form airtight space, adorn detection device on sealed fibre cloth, detection device includes: two hoop holder supports of meeting an emergency, FBG meet an emergency and bind round sensor, gleitbretter, apron and wedge, FBG meets an emergency the both ends of hoop sensor and is equipped with the gleitbretter, and the gleitbretter is adorned on two hoop holder supports of meeting an emergency through apron and wedge, two hoop holder supports of meeting an emergency stick fast on sealed fibre cloth through epoxy. The utility model has the characteristics of novel structure, add break just, installation convenient to use, good reliability, use extensive etc.
Description
Technical field
Pressure pipeline weld seam breakage monitoring sensing system described in the utility model, belongs to sensor technology neckTerritory, specially refers to a kind of structure design of pressure pipeline weld seam breakage monitoring sensing system.
Background technology
Weld seam is as a key factor in numerous weak links of pressure pipeline damage, the reality of butt welded seamTime safety monitoring be also a difficult problem of needing solution badly. Due to welding procedure itself, welding point is shapeComplicated and the inhomogeneous thermal process of experience in one-tenth process, cause postwelding joint exist larger residual stress withThe inhomogeneities of distortion, Geometrical discontinuity and mechanical property, easily crack at welding point, slag inclusion,The weld defect such as pore, undercut, has reduced the effective area of welding point bearing cross-section, and section stress increasesAdd, the Existence and development of these defects will cause Failure Criterion of Pressure Piping and fracture. If can carry out by butt welded seamLine monitoring, the weld damage that the automatic sensing initial stage is small and leakage, will more be conducive to grasp pressure pipelineSafety and operation state, the tendency of discovery accident in time, the serious accident of avoiding happening suddenly occur.
More common weld monitoring technology is mainly seam inspection and electrochemical method at present. Flaw detection skillArt has magnetic powder inspection, ultrasonic examination, X ray to look into wound, dye penetrant inspection and sound emission flaw detection etc., weld seamFlaw detection not only can check the quality of weld seam can also measure the height of weld seam, is the most effectively to detectMeans, but these inspection techniques all can only carry out interim safety detection and cannot provide real-time by butt welded seamSafety on line operation monitoring. And the detection of electrochemical method butt welded seam is not yet universal, it is right when detection, to needSensor is powered, electric signal transmission distance, the antijamming capability of signal transmission and the use of transmission mediumElectricity safety is all difficult to ensure, simultaneously due to electrochemical method most methods that adopt manual manufacture now, inspectionSurveying precision and resolution ratio all haves much room for improvement.
Optical fibre optical fibre is a kind of sensing element of function admirable, can come by the movement of bragg reflection wavelengthRespond to extraneous small strain and change, realize structural stress, the isoparametric on-line monitoring of temperature. It hasEssence explosion-proof, anti-electromagnetic interference, certainty of measurement is high, collection sensing be transmitted in one, the spy such as easy to usePoint, is applicable to the length of the hazardous materials transportation such as oil gas, chemical industry pipeline apart from remote monitoring.
Patent [title: a kind of strain hoop sensor for measuring channel hoop strain, publication number: CN102636128A, open day: 2012.08.15, China] a kind of strain of measuring channel hoop strain proposedHoop sensor, is a kind of fiber-optic grating sensor, the sensor that can monitor as pressure pipeline hoop strain,But be applied to the monitoring of weld seam, need to, for weld seam feature design sensing system, weld seam be encapsulated in to confined airThe interior small fixed point causing with the breakage of monitoring weld seam is leaked.
For existing problem in above-mentioned prior art, a kind of novel pressure pipeline weld seam of research and design is brokenDamaging monitoring sensor system, is very necessary thereby overcome existing problem in prior art.
Summary of the invention
In view of existing problem in above-mentioned prior art, the purpose of this utility model is research and design oneNovel pressure pipeline weld seam breakage monitoring sensing system, is difficult to real-time prison in order to solve prior artSurvey, electricity consumption potential danger, be subject to the problem of electromagnetic interference influence. Meet pressure pipeline weld seam monitoring requirementsThe pressure pipeline weld seam breakage monitoring sensing system based on fiber grating sensing technology be necessary, it will solve the problem of weld seam method of real-time disappearance and installation of sensors safely and effectivelyProblem.
Technical solution of the present utility model is achieved in that
Pressure pipeline weld seam breakage monitoring sensing system described in the utility model; It is characterized in that comprising:Sealing fiber cloth, sealing ring, checkout gear; Sealing fibre cloth winding, around pipe welding seam place, forms fiber clothRing; Sealing ring is loaded on the both sides of fiber cloth ring, will seal fiber cloth lock ring on duct wall, forms confined airBetween; Checkout gear is loaded in sealing fiber cloth;
Checkout gear described in the utility model comprises: two strain hoop clamp device bearings, FBG strain hoop sensor,Slide plate, cover plate and chock; Slide plate is equipped with at the two ends of FBG strain hoop sensor, and slide plate is by cover plate and chock dressOn two strain hoop clamp device bearings; Two strain hoop clamp device bearings are cemented in sealing fiber by epoxy resinOn cloth.
Sealing fibre cloth winding described in the utility model forms fiber cloth ring around pipe welding seam place; Lap-joint withAnd sealing fiber cloth both sides and pipeline joint-seam place cement by epoxy resin adhesive.
Described in the utility model pair of strain hoop clamp device bearing is that metal material cutting forms; Two strain hoop clipsThe contact-making surface of holding device bearing bottom and pipeline is circular arc, and arc diameter is identical with outer diameter tube radian; Along twoThe central shaft of the contact-making surface of strain hoop clamp device bearing and pipeline is processed with a weld seam groove; At two strain hoop clipsHold the sliding tray that device bearing top is radially processed with two perforations; Both sides at every sliding tray are processed withOne row's upside screw hole; Side elevation at two strain hoop clamp device bearings is processed with through slot; At two strain hoopsGripper seat is processed with fine adjustment screw hole, end near one end of through slot, and fine adjustment screw hole processes respectivelyThe both sides of every sliding tray.
Slide plate described in the utility model is rectangle sheet structure, and thickness is less than the width of sliding tray; SlidingThe middle part of sheet is processed with square hole, square hole open the sectional area that sky cross section is greater than chock; Add in one end, slide plate bottomWork has optic fibre hole, is used for glueing joint with FBG strain hoop sensor terminal; The two ends of FBG strain hoop sensor respectively fillThere is a slide plate; FBG strain hoop sensor is around piping, and the slide plate at two ends is loaded on chock in sliding tray and insertsIn through slot, and through square hole, cover cover plate, be screwed.
The both sides of the symmetrical processing of sliding tray described in the utility model and weld seam groove.
Stock screw is equipped with on fine adjustment screw hole in end described in the utility model, and the front end of stock screw withstands onOn chock; Drive chock along the moving forward and backward of through slot by rotation stock screw, and then pre-control FBG shouldBecome the pre-stretch-draw of hoop sensor.
FBG strain hoop sensor described in the utility model is symmetrically placed in the both sides of weld seam.
When installation, first near 10cm bandwidth range polishing pipe welding seam is cleaned out, use sealing fineDimension strap wraps weld seam, forms fiber cloth ring, lap-joint and fiber cloth ring both sides epoxy resin glueKnot agent cements, and fiber cloth ring both sides of the edge will seal fiber cloth lock ring on duct wall with sealing ring, formsConfined space. Two strain hoop clamp device bearings are installed on cross section, weld seam place, the low weld seam groove of seat is striden acrossWeld flush, is cemented in gripper seat outside fiber cloth with epoxy resin. By 2 FBG strain hoopsSensor by two slideways on gripper seat, is symmetrically distributed in weld seam both sides respectively.
The installation method of FBG strain hoop sensor is: sensor one end slide plate is embedded to gripper seat slidingRoad without side elevation through slot one end, cover plate is fixed on to upside screw hole with screw; By other end slide plateWhat embed gripper seat slideway has side elevation through slot one end, inserts chock, wedge to side elevation through slotSon is simultaneously through the square hole on slide plate; Fiber grating is accessed to (FBG) demodulator, according to (FBG) demodulator reading control lightThe increment of fine grating wavelength; Use two pieces of stock screws to finely tune pretensioned degree, screw in bearing left end oneTo the fine adjustment screw hole, end penetrating, screw in turn two pieces of stock screws, promote chock and slide, chock is againDrive slide plate advances, and finally with cover plate and screw, slide plate is fixed on gripper seat, completes oneThe installation process of FBG strain hoop sensor. The installation method of another FBG strain hoop sensor is identical.
When breakage occurs weld seam, content leaks, to the confined space of fiber cloth and sealing ring formation, is sent outRaw expansion, the FBG strain hoop sensor outside sealing fiber cloth will monitor this circumferential deformation, pass throughFiber Bragg grating (FBG) demodulator imports computer into, display alarm.
The utility model has the advantages that apparently, be mainly manifested in:
1, the utility model has solved the problem of weld seam realtime on-line monitoring method disappearance;
2, the utility model has solved existing fiber grating strain hoop sensor and cannot monitor near weld seam closeClose the problem of environmental change, make it range of application also more extensive;
The utility model has ensured the damaged minute leakage property examined occurring of pressure pipeline weld seam, makes and peaceFill easy, there is the advantages such as pre-stretch-draw can be controlled, suitable batch production.
The utlity model has novel structure, add break just, easy to install, reliability is strong, application is wideThe advantage such as general, it puts goods on the market in enormous quantities and will produce positive social benefit and significant economic benefit.
Brief description of the drawings
The utility model has 4 width accompanying drawings, wherein:
Accompanying drawing 1 the utility model structural representation;
2 pairs of strain hoop clamp device seat structure schematic diagram I of accompanying drawing;
3 pairs of strain hoop clamp device seat structure schematic diagram II of accompanying drawing;
Accompanying drawing 4 slide plate exploded perspective views.
In the drawings: 1, sealing fiber cloth 2, sealing ring 3, two strain hoop clamp device bearing 4, FBG answerBecome hoop sensor 5, slide plate 6, cover plate 7, chock 8, stock screw 9, weld seam groove 10, slidingMoving groove 11, through slot 12, upside screw hole 13, fine adjustment screw hole, end 14, square hole 15,Optic fibre hole.
Detailed description of the invention
Specific embodiment of the utility model as shown in drawings, pressure pipeline weld seam breakage monitoring sensing system;It is characterized in that comprising: sealing fiber cloth 1, sealing ring 2, checkout gear; Sealing fiber cloth 1 is wrapped in pipeCommissure, road forms fiber cloth ring; Sealing ring 2 is loaded on the both sides of fiber cloth ring, will seal fiber cloth lock ring and existOn duct wall, form confined space; Checkout gear is loaded in sealing fiber cloth; Checkout gear comprises: twoStrain hoop clamp device bearing 3, FBG strain hoop sensor 4, slide plate 5, cover plate 6 and chock 7; FBG strainSlide plate 5 is equipped with at the two ends of hoop sensor 4, and slide plate 5 is loaded on two strain hoop clamp devices by cover plate 6 and chock 7On bearing 3; Two strain hoop clamp device bearings 3 are cemented in sealing fiber cloth 1 by epoxy resin.
Sealing fiber cloth 1 is wrapped in pipe welding seam place and forms fiber cloth ring; Lap-joint and sealing fiber cloth 1Both sides and pipeline joint-seam place cement by epoxy resin adhesive.
Two strain hoop clamp device bearings 3 form for metal material cutting; Two strain hoop clamp device bearing 3 bottomsWith the contact-making surface of pipeline be circular arc, arc diameter is identical with outer diameter tube radian; Along two strain hoop clamp devicesBearing 3 is processed with a weld seam groove 9 with the central shaft of the contact-making surface of pipeline; At two strain hoop clamp device bearings 3Top is radially processed with the sliding tray 10 of two perforations; Be processed with a row in the both sides of every sliding tray 10Upside screw hole 12; Side elevation at two strain hoop clamp device bearings 3 is processed with through slot 11; In two strainsHoop clamp device bearing 3 is processed with fine adjustment screw hole, end 13, fine adjustment screw hole near one end of through slot 1113 process respectively the both sides at every sliding tray 9.
Slide plate 5 is rectangle sheet structure, and thickness is less than the width of sliding tray 10; Middle part at slide plate 5 addsWork has square hole 14, square hole 14 open the sectional area that sky cross section is greater than chock 7; In slide plate 5 one end, bottom processingThere is optic fibre hole 15, be used for glueing joint with FBG strain hoop sensor 4 terminations; Two of FBG strain hoop sensor 4End is respectively equipped with a slide plate 5; FBG strain hoop sensor 4 is around piping, and the slide plate 5 at two ends is loaded on slipThe interior chock 7 of groove 10 is inserted in through slot 11, and through square hole 15, covers cover plate 6, is screwed.
The both sides of the symmetrical processing of sliding tray 10 and weld seam groove 9.
On fine adjustment screw hole, end 13, stock screw 8 is housed, the front end of stock screw 8 withstands on chock 7;Drive chock 7 along the moving forward and backward of through slot 11 by rotation stock screw 8, and then pre-control FBG strainThe pre-stretch-draw of hoop sensor 4.
FBG strain hoop sensor 4 is symmetrically placed in the both sides of weld seam.
The above, be only preferably detailed description of the invention of the present utility model, but protection of the present utility modelScope is not limited to this, is allly familiar with those skilled in the art in the disclosed technology of the utility modelIn scope, be equal to replacement or changed according to the technical solution of the utility model and design of the present utility model thereofWithin change all should be encompassed in protection domain of the present utility model.
Claims (7)
1. a pressure pipeline weld seam breakage monitoring sensing system; It is characterized in that comprising: sealing fiberCloth (1), sealing ring (2), checkout gear; Sealing fiber cloth (1) is wrapped in pipe welding seam place and forms fiberCloth ring; Sealing ring (2) is loaded on the both sides of fiber cloth ring, will seal fiber cloth lock ring on duct wall, formsConfined space; Checkout gear is loaded in sealing fiber cloth;
Described checkout gear comprises: two strain hoop clamp device bearings (3), FBG strain hoop sensor (4),Slide plate (5), cover plate (6) and chock (7); Slide plate (5) is equipped with at the two ends of FBG strain hoop sensor (4),Slide plate (5) is loaded on two strain hoop clamp device bearings (3) by cover plate (6) and chock (7); Two answeringBecoming hoop clamp device bearing (3) is cemented in sealing fiber cloth (1) by epoxy resin.
2. pressure pipeline weld seam breakage monitoring sensing system according to claim 1, is characterized in thatDescribed sealing fiber cloth (1) is wrapped in pipe welding seam place and forms fiber cloth ring; Lap-joint and sealing fiberCloth (1) both sides and pipeline joint-seam place cement by epoxy resin adhesive.
3. pressure pipeline weld seam breakage monitoring sensing system according to claim 1, is characterized in thatDescribed two strain hoop clamp device bearings (3) form for metal material cutting; Two strain hoop clamp device bearings (3)The contact-making surface of bottom and pipeline is circular arc, and arc diameter is identical with outer diameter tube radian; Along two strain hoop clipsHold device bearing (3) and be processed with a weld seam groove (9) with the central shaft of the contact-making surface of pipeline; At two strain hoop clipsHold the sliding tray (10) that device bearing (3) top is radially processed with two perforations; In every sliding tray (10)Both sides be respectively processed with row's upside screw hole (12); At the side elevation of two strain hoop clamp device bearings (3)Be processed with through slot (11); Add near one end of through slot (11) at two strain hoop clamp device bearings (3)Work has fine adjustment screw hole, end (13), and fine adjustment screw hole (13) process respectively at every sliding tray (9)Both sides.
4. pressure pipeline weld seam breakage monitoring sensing system according to claim 1, is characterized in thatDescribed slide plate (5) is rectangle sheet structure, and thickness is less than the width of sliding tray (10); In slide plate (5)Middle part be processed with square hole (14), square hole (14) open the sectional area that sky cross section is greater than chock (7); ?Slide plate (5) one end, bottom is processed with optic fibre hole (15), is used for and FBG strain hoop sensor (4) termination glueConnect; A slide plate (5) is respectively equipped with at the two ends of FBG strain hoop sensor (4); FBG strain hoop sensor (4)Around piping, the slide plate at two ends (5) is loaded on the interior chock of sliding tray (10) (7) and is inserted into through slot (11)In, and through square hole (15), cover cover plate (6), be screwed.
5. pressure pipeline weld seam breakage monitoring sensing system according to claim 3, is characterized in thatThe both sides of the symmetrical processing of described sliding tray (10) and weld seam groove (9).
6. pressure pipeline weld seam breakage monitoring sensing system according to claim 3, is characterized in thatOn described fine adjustment screw hole, end (13), stock screw (8) is housed, the front end of stock screw (8) withstands onOn chock (7); By rotation stock screw (8) drive chock (7) along through slot (11) advance andRetreat, and then the pre-stretch-draw of pre-control FBG strain hoop sensor (4).
7. pressure pipeline weld seam breakage monitoring sensing system according to claim 1, is characterized in thatDescribed FBG strain hoop sensor (4) is symmetrically placed in the both sides of weld seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922372.XU CN205246007U (en) | 2015-11-17 | 2015-11-17 | Damaged monitor sensor system of pipeline under pressure welding seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922372.XU CN205246007U (en) | 2015-11-17 | 2015-11-17 | Damaged monitor sensor system of pipeline under pressure welding seam |
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| Publication Number | Publication Date |
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| CN205246007U true CN205246007U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520922372.XU Expired - Fee Related CN205246007U (en) | 2015-11-17 | 2015-11-17 | Damaged monitor sensor system of pipeline under pressure welding seam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318842A (en) * | 2015-11-17 | 2016-02-10 | 大连大学 | Pressure pipeline welding seam breakage monitoring sensor system |
| CN108362021A (en) * | 2018-02-06 | 2018-08-03 | 海宁安捷复合材料有限责任公司 | A kind of water tank with bracing means |
-
2015
- 2015-11-17 CN CN201520922372.XU patent/CN205246007U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318842A (en) * | 2015-11-17 | 2016-02-10 | 大连大学 | Pressure pipeline welding seam breakage monitoring sensor system |
| CN105318842B (en) * | 2015-11-17 | 2018-05-25 | 大连大学 | Pressure pipeline weld seam breakage monitoring sensing system |
| CN108362021A (en) * | 2018-02-06 | 2018-08-03 | 海宁安捷复合材料有限责任公司 | A kind of water tank with bracing means |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170817 Address after: 116620, No. 16, Liaohe East Road, Jinzhou New District, Liaoning, Dalian Patentee after: Dalian Lian Da Civil Engineering Research Institute Co Ltd Address before: 116622 Dalian Province, Jinzhou New District, the main street, No. 10 Patentee before: Dalian University |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20191117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |