CN105202374A - Movable-electrode type pipe nondestructive detecting device applied to electric field fingerprint method - Google Patents
Movable-electrode type pipe nondestructive detecting device applied to electric field fingerprint method Download PDFInfo
- Publication number
- CN105202374A CN105202374A CN201510658901.4A CN201510658901A CN105202374A CN 105202374 A CN105202374 A CN 105202374A CN 201510658901 A CN201510658901 A CN 201510658901A CN 105202374 A CN105202374 A CN 105202374A
- Authority
- CN
- China
- Prior art keywords
- probe
- electric field
- main body
- electrode type
- fingerprint method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a movable-electrode type pipe nondestructive detecting device applied to an electric field fingerprint method, and belongs to the field of pipe nondestructive detecting technology devices. The movable-electrode type pipe nondestructive detecting device comprises a to-be-detected pipe (1). A to-be-detected area is arranged on the to-be-detected pipe (1). A plurality of detecting points are arranged in the to-be-detected area. The movable-electrode type pipe nondestructive detecting device is characterized in that collecting groove units (4) for exposing the detecting points are formed in the surface of the to-be-detected area of the to-be-detected pipe (1) in a non-welded mode, and reciprocating collecting units (5) are erected on the surfaces of the collecting groove units (4), connected with a reciprocating driving unit (3) and driven by the reciprocating driving unit (3) to reciprocate along the collecting groove units (4) and complete data collecting of the detecting points.. By means of the movable-electrode type pipe nondestructive detecting device applied to the electric field fingerprint method, when pipe corrosion conditions are tested with the electric field fingerprint method, data are collected in the non-welded mode, and meanwhile a large amount of wiring is avoided.
Description
Technical field
Be applied to a mobile electrode type pipeline non-destructive testing device for electric field fingerprint method, belong to pipeline Dynamic Non-Destruction Measurement apparatus field.
Background technique
At present, generally adopt the corrosion condition of resistance probe method and polarization probe method on-line monitoring pipeline, but these methods can only carry out indirect homogeneous corrosion detection, and have damage to tube wall, simultaneously maintenance cost and parking start-up cost higher, and helpless to the great local etching of harmfulness.Utilize electric field fingerprint method to carry out the detection of corrosive pipeline, have measure directly, precision and high, the adaptable advantage of reliability, and to tube wall not damaged.
The basic principle of electric field fingerprint method is: weld some seizure electrodes in the perishable place welding of pipe under test with the form of array, catch after electrode welding completes and draw wire on seizure electrode, then apply big current signal in seizure electrode pair pipe under test, gather the reference value of output voltage as this pipe under test of seizure electrode when pipeline does not occur to corrode.After the equipment for the treatment of runs a period of time, by catching the slight change of electrode measurement Structural Hardware voltage characteristic, the reference value when voltage characteristic recorded and zero defect structure being compared, judging thus because of defects such as metal loss, crackle or grooves that corrosion causes.
Generally adopt the mode of welding to catch electrode welding on the surface of pipe under test in the prior art, by the mode of welding, have following defect:
1, weld welding equipment requirement higher, according to different pipeline materials and electrode material, welding equipment requires different, and welding parameter is different, probes into more difficult one by one; For indoor construction, some pipeline present positions are narrow and small, and welding operation difficulty, even cannot weld, greatly limit the application area of technology; Accordingly, for field construction, power supply erection is inconvenient, and welding equipment heaviness can not be constructed flexibly, also greatly limit promoting the use of of this technology.These defects improve the installation cost of device while bringing very burden to site operation.
2, adopt welding connecting mode, seizure electrode and pipe under test being welded together, although degree is smaller, itself is destroy the one of pipe under test, comparatively large for sheet-metal duct hazard ratio, has run counter to the principle of non-destructive inspection to a certain extent.
3, the technology application direction of electric field fingerprint method, is mainly the pipe detection such as petrochemical industry, and one of advantage of this technology is that device does not need to stop production, but welding easily produces naked light, operates under being not suitable for high-risk environment.
4, adopt welding manner, can not ensure that each welded joint is completely the same, the welding contact resistance formed thus will be different, and small resistance the change of divergence obviously will affect the collection of micro voltage signal, limits the high precision test of voltage signal.
5, catching electrode and structure welding joint soundness to be measured has to be detected, and welded joint place easily forms stress and concentrates simultaneously, impact to voltage pipe safety; Welded joint ratio is easier to corrosion simultaneously, and corrosion protection requires higher.
6, arrange seizure electrode with the form of array in prior art, the quantity of the seizure electrode therefore needed is more, and all needs extracting power supply cord because each catches electrode, and therefore installation cost is higher.Each electrode catheter needs effectively to be connected with pipe under test, and workload is large, and complex process, cost of labor is high.Need statistical conversion because each catches electrode, so data acquisition lines is complicated chaotic, and to the requirement of data acquisition equipment higher and expense costly, simultaneously during multi-channel data transmission, the transmission of data is easily interfered, and affects acquisition precision.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, there is provided a kind of when using electric field fingerprint method to carry out the test of corrosive pipeline situation, the collection adopting the mode of non-solder to realize data avoids the mobile electrode type pipeline non-destructive testing device of the electric field fingerprint method that is applied to of a large amount of wiring simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: this is applied to the mobile electrode type pipeline non-destructive testing device of electric field fingerprint method, comprise pipe under test, pipe under test is provided with region to be measured, some Check points are provided with in region to be measured, it is characterized in that: be provided with on the surface in pipe under test region to be measured the collection groove unit exposed by Check point with the form of non-solder, reciprocating collecting unit is had in the surface erection gathering groove unit, reciprocating collecting unit is connected with reciprocating driver element and moves back and forth and the collection completing Check point data along gathering groove unit under it drives.
Preferably, described collection groove unit, reciprocating collecting unit and reciprocating driver element are all arranged on base plate, and base plate cross section is arc-shaped, are fixed on the surface of pipe under test.
Preferably, described collection groove unit comprises many collection grooves axially arranged along pipe under test, and gather the surface that groove is opened in base plate, every bar gathers groove inner homogeneous and is provided with multiple data capture hole, data capture hole is through hole, with the Check point one_to_one corresponding in region to be measured in pipe under test.
Preferably, in described collection groove, connected by projection between two adjacent data capture holes, protruding both sides are domatic design.
Preferably, described reciprocating collecting unit comprises probe support track, probe support and multiple probe, probe support track is arranged on the both sides gathering groove unit, probe support to be slidably arranged in probe support track and to be erected at the outside gathering groove unit, and probe support is connected with reciprocating driver element and realizes to-and-fro motion; Probe is fixed on the inner side surface of probe support, corresponding with a row or column Check point in some Check points of array arrangement in pipe under test region to be measured.
Preferably, described probe comprises main body and lower main body, upper body interior is provided with upper spring, lower main body is sleeved on body interior and under the effect of upper spring, is in the bottom of main body, in lower main body, be provided with elasticity acquisition mechanism, elasticity acquisition mechanism contacts with the Check point in pipe under test region to be measured and realizes data capture.
Preferably, described elasticity acquisition mechanism comprises lower spring, internal probe and ball, lower spring is positioned at the cavity of lower body top, the rotating ball grooves being positioned at lower bottom part body of ball, internal probe enters in ball grooves downwards and ball contact from the cavity of lower body top under the effect of lower spring; Internal probe and ball are that conductive material is made, and ball exposes and contacts with the Check point in region to be measured bottom ball grooves, is provided with the data acquisition line concentration for data being drawn at internal probe top.
Preferably, described reciprocating driver element comprises oval rotating disk, connecting rod and push rod, the card of the output shaft vertical dial of motor is fixed, the rotating edge being connected to rotating disk in one end of connecting rod, the other end of connecting rod connects one end of push rod, and the other end of push rod is connected with reciprocating collecting unit.
Preferably, the both sides of described push rod are also respectively arranged with a push rod track for leading.
Compared with prior art, the beneficial effect that the present invention has is:
1, by the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method of the present invention when using electric field fingerprint method to carry out the test of corrosive pipeline situation, the mode of non-solder is adopted to realize the collection of data, really accomplish the not damaged to pipe under test, avoid a series of restrictions of welding condition and power supply simultaneously, more convenient field construction, greatly reduce construction cost, improve the Security of detection.
2, in the mobile electrode type pipeline non-destructive testing device that should be used for electric field fingerprint method, reciprocating collecting unit is driven to move back and forth along gathering groove unit by reciprocating driving power, namely reciprocating collecting unit completes the collection of the collection point in pipe under test in whole region to be measured in reciprocating process, to compare prior art, avoid a large amount of wiring, therefore after voltage acquisition completes, at follow-up Data processing, due to the negligible amounts of Check point gathered simultaneously, hardware greatly reduces the cost of data acquisition equipment, software also reduces the complexity of programming, data processing is more succinct.
3, groove unit will be gathered, reciprocating collecting unit and reciprocating driver element are arranged on base plate, and base plate is being fixed on pipe under test surface, and dismounting is more convenient, and gathering groove unit, arranging of reciprocating collecting unit and reciprocating driver element is more convenient and rationally.
4, by arranging collection groove, and arrange the data capture hole of being exposed one by one by Check point on collection groove, the location of more convenient Check point and collection, acquisition precision is higher.
5, between adjacent two data capture holes, the domatic projection of band is provided with, the to-and-fro motion of more convenient probe support.
6, within the probe can the elasticity acquisition mechanism of resilience, when probe support moves back and forth, the elasticity acquisition mechanism in probe can be retracted in upper main body, more the movement of aspect probe.
7, rotating disk adopts oval card, and therefore push rod is when realizing identical reciprocating motion length, and the required card area arranged of rotating disk is less, therefore reduces the space shared by reciprocating driver element, and reduces cost of material to a certain extent.
Accompanying drawing explanation
Fig. 1 is the mobile electrode type pipeline non-destructive testing apparatus structure schematic diagram being applied to electric field fingerprint method.
Fig. 2 is the reciprocating structure of driving unit schematic diagram of mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method.
Fig. 3 is that the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method gathers groove unit front view.
Fig. 4 is that the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method gathers groove unit worm's eye view.
Fig. 5 is the reciprocating collecting unit front view of mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method.
Fig. 6 is the reciprocating collecting unit plan view of mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method.
Fig. 7 is the mobile electrode type pipeline non-destructive testing device probe structure schematic diagram being applied to electric field fingerprint method.
Fig. 8 is the mobile electrode type pipeline non-destructive testing device collection groove unit front view that embodiment 2 is applied to electric field fingerprint method.
Fig. 9 is the mobile electrode type pipeline non-destructive testing device probe structure schematic diagram that embodiment 2 is applied to electric field fingerprint method.
Wherein: 1, pipe under test 2, base plate 3, reciprocating driver element 4, gather groove unit 5, reciprocating collecting unit 6, motor shaft 7, rotating disk 8, connecting rod 9, push rod track 10, push rod 11, gather groove 12, protruding 13, data capture hole 14, locating column 15, probe support 16, probe 17, probe support track 18, data acquisition line concentration 19, upper main body 20, upper spring 21, lower spring 22, lower main body 23, internal probe 24, ball 25, ball grooves 26, return ring 27, recoverable collection groove 28, main body 29, recoverable probe.
Embodiment
Fig. 1 ~ 7 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 9, the present invention will be further described.
As shown in Figure 1, be applied to the mobile electrode type pipeline non-destructive testing device of electric field fingerprint method, comprise the base plate 2 be fixed on pipe under test 1 surface, base plate 2 cross section is the arc-shaped of standard, the curvature of its circular arc is identical with the curvature of pipe under test 1, and base plate 2 is isolation material, is fixed in pipe under test 1 by various ways, as gluing fixing, static line is fixing.Be disposed with reciprocating driver element 3 on a base plate 2, gather groove unit 4 and reciprocating collecting unit 5.After base plate 2 fixedly completes, gather groove unit 4 corresponding with the position in the region to be measured in pipe under test 1.Reciprocating collecting unit 5 coordinates with collection groove unit 4 to be installed, reciprocating collecting unit 5 moves back and forth along gathering groove unit 4 under the drive of reciprocating driver element 3, in the process moved back and forth, the voltage of voltage collecting device in reciprocating collecting unit 5 to the voltage detecting point in the region to be measured in pipe under test 1 carries out circle collection, and exports.
As shown in Figure 2, reciprocating driver element 3 comprises rotating disk 7, connecting rod 8 and push rod 10.Rotating disk 7 is driven by motor (not shown in FIG.) and rotates, and the card of the output shaft vertical dial 7 of motor is fixed.One end of connecting rod 8 is by the rotating edge being connected to rotating disk 7 of a rotating shaft, the rotating shaft of connecting rod 8 and the output shaft of motor lay respectively in the different cards of rotating disk 7, the other end of connecting rod 8 connects one end of push rod 10, and the other end of push rod 10 is connected with reciprocating collecting unit 5.A push rod track 9 is also respectively arranged with, for limiting the sphere of activities of push rod 10 in the both sides of push rod 10.
When starting to rotate under the effect of rotating disk 7 at motor output shaft, due to connecting rod 8, the edge with rotating disk 7 is connected, therefore connecting rod 8 and rotating disk 7 tie point with the principle of similar bent axle complete away from, near the shuttling movement of push rod track 9, because connecting rod 8 is rigid device, therefore while the end motion that connecting rod 8 is connected with rotating disk 7, its the other end drives push rod 10 to realize to-and-fro motion, thus achieves the to-and-fro motion of reciprocating collecting unit 5.
In the mobile electrode type pipeline non-destructive testing device that should be used for electric field fingerprint method, rotating disk 7 adopts oval card, therefore push rod 10 is when realizing identical reciprocating motion length, the required card area arranged of rotating disk 7 is less, therefore reduce the space shared by reciprocating driver element 3, and reduce cost of material to a certain extent.
As shown in Fig. 3 ~ 4, gather groove unit 4 and comprise many collection grooves 11 axially arranged with pipe under test 1, adjacent two spacing gathering groove 11 are identical, in the present embodiment, gather the surface that groove 11 is directly opened in base plate 2.Gather groove 11 inner homogeneous at every bar and be provided with multiple data capture hole 13, the spacing that the spacing and adjacent two in adjacent two data capture holes 13 gathers groove 11 is identical, therefore, after collection groove 11, the identical array-type data capture hole 13 of row, column spacing is formed on a base plate 2.The quantity that the quantity of collection groove 11 and every bar gather the data capture hole 13 in groove 11 is determined by the acquisition scheme before test.Gather in groove 11 at each, connect between adjacent two data capture holes 13 by protruding 12, the two ends of protruding 12 are domatic, and in the present embodiment, protruding 12 adopt arc-shaped, also can adopt trapezoid shaped.
Data capture hole 13 is through hole, needs the Check point carrying out voltage acquisition all can expose from data capture hole 13 in pipe under test 1.Quantity and the spacing of the quantity of the voltage collecting device in reciprocating collecting unit 5 and spacing and collection groove 11 are identical, therefore when reciprocating collecting unit 5 carries out reciprocatory motion along collection groove unit 4 under the drive of reciprocating driver element 3, voltage collecting device in reciprocating collecting unit 5 through the data capture hole 13 of each row, realizes the reciprocation cycle collection to voltage Check point output voltage in pipe under test 1 successively.
As shown in Fig. 5 ~ 6, multiple probes 16 that reciprocating collecting unit 5 comprises probe support track 17, probe support 15 and fixed by probe support 15.On a base plate 2, the both sides gathering groove 11 are respectively provided with one to probe support track 17 axial restraint.Probe support track 17 is circular tube shaped, and the tube wall of pipe axially offers opening, and the distance at opening two ends is less than the diameter of pipe, and the axially open on two probe support tracks 17 is oppositely arranged.
Probe support 15 is circular arc strip, and the curvature of its circular arc is identical with the curvature of base plate 2.A locating column 14 is connected respectively by a connecting rod at the two ends of probe support 15, locating column 14 correspondence at two ends is sleeved in the probe support track 17 of corresponding side, corresponding connecting rod is drawn from the opening of probe support track 17 body, realizes the connection of probe support 15 and probe support track 17.Locating column 14 is cylindric, its diameter is less than the diameter of probe support track 17 body and is greater than the distance at probe support track 17 body upper shed two ends, the fineness in the connecting rod cross section between probe support 15 and locating column 14 is less than the distance at probe support track 17 body upper shed two ends, therefore after the locating column 14 of both sides being sleeved in corresponding probe support track 17, reliably be connected with probe support track 17 at guarantee probe support 15, while can not deviating from, probe support 15 can move along the axial reciprocating of probe support track 17, in above-mentioned reciprocating driver element 3, push rod 10 is connected with the side of probe support 15, to-and-fro motion is realized under the drive of probe support 15 push rod 10 in reciprocating driver element 3.
The inner side of probe support 15 is provided with multiple probe 16, and quantity and adjacent two distances gathered between groove 11 of the distance between the quantity of probe 16 and adjacent two probes 16 and above-mentioned collection groove 11 are equal.So probe 16 on probe support 15 is with gathering a column data corresponding in groove unit 4, to gather hole 13 corresponding, and pass corresponding data capture hole 13 and contact with pipe under test 1, realizes the collection of voltage in pipe under test 1.When probe support 15 moves back and forth under the drive of push rod 10, row probe 16 correspondence on probe support 15 to gather hole 13 corresponding with each column data in collection groove unit 4, realize the voltage acquisition in region to be measured in pipe under test 1.
When oval rotating disk 7 rotates under the drive of motor, when connecting rod 8 is positioned at the two ends place of motor output shaft, probe support 15 is in most proximal end and distalmost end under the drive of push rod 10.Operator are by the test of limited number of time, when can ensure that probe support 15 is in most proximal end and distalmost end under the drive of push rod 10, probe 16 on probe support 15 is just corresponding with the position gathering the data capture hole 13 that groove about 11 two arranges, therefore, in a period of rotation of rotating disk 7, probe support 15 carries out a to-and-fro motion along probe support track 17 just.
As shown in Figure 7, probe 16 comprises main body 19 and the lower main body 22 be sleeved in main body 19.Upper main body 19 and lower main body 22 can adopt the cross section of identical or different shape, and upper main body 19 and lower main body 22 cross section preferably adopt cylindrical.Upper main body 19 is hollow design, upper spring 20 is provided with in this cavity, through hole is had in the bottom of upper main body 19, lower main body 22 is drawn downwards in this circular hole, lower main body 22 is in the bottom of main body 19 all the time under the suppressing action of upper spring 20, the upper end of lower main body 22 is provided with gear platform, drops out from upper main body 19 bottom to prevent lower main body 22.
Lower main body 22 is similarly hollow design, lower spring 21 is provided with in its cavity, a through hole is provided with in the bottom of this cavity, internal probe 23 is drawn downwards in this through hole, internal probe 23 is in the bottom of lower main body 22 all the time under the effect of lower spring 21, the upper end of internal probe 23 is provided with gear platform, drops out from lower main body 22 bottom to prevent internal probe 23.The bottom of lower main body 22 is provided with ball grooves 25, in ball grooves 25, is provided with the ball 24 that can rotate arbitrarily, probe 23 bottom be positioned at ball grooves 25 top and with ball 24 surface contact.
Ball 24 and internal probe 23 all adopt conductive material to make, ball 24 exposes bottom ball grooves 25, when probe 16 moves back and forth with probe support 15, ball 24 correspondence bottom probe 16 to enter in data capture hole 13 and contacts with the Check point in pipe under test 1, gathers the voltage of the Check point of pipe under test 1.Data acquisition line concentration 18 is also provided with in probe 16, data acquisition line concentration 18 one end is connected with the top reliable electric of internal probe 23, the other end is upwards drawn through after the perforate being arranged on upper main body 19 and lower main body 22 top successively, realizes the transmission of the voltage data collected simultaneously.
Specific works process and working principle as follows:
Preparatory stage:
Before by electric field fingerprint method pipe under test 1 being tested, first in pipe under test 1, determine region to be detected, in this region, then determine the quantity of Check point, and mark accordingly.After the intervals of the row, column quantity of the Check point in region to be detected and adjacent rows, two row are determined, offer the collection groove 11 at corresponding line number and interval on a base plate 2, gather at every bar the data capture hole 13 offering corresponding quantity and interval in groove 11 simultaneously, complete the setting gathering groove unit 4.Then base plate 2 is fixed in pipe under test 1, and ensures the position in each data capture hole 13 and the position one_to_one corresponding of pre-determined Check point.
After collection groove unit 4 is provided with, gathering the both sides stationary probe bracket track 17 of groove unit 4 and completing the fixing of probe support 15, and ensure the quantity of probe 16 quantity on probe support 15 and spacing and collection groove 11 and spacing identical, after probe support 15 is fixed on probe support track 17, probe support 15 is connected with the push rod 10 in reciprocating driver element 3.Tester is by the test of conventionally calculation and limited number of time, the shape of rotating disk 7 and motor output shaft, the fixed position of connecting rod 8 on rotating disk 7 can be determined, during to ensure that rotating disk 7 rotates under motor drives, when probe support 15 is in most proximal end and distalmost end under the drive of push rod 10, probe 16 on probe support 15 is just corresponding with the position gathering the data capture hole 13 that groove about 11 two arranges, in a period of rotation of i.e. rotating disk 7, probe support 15 carries out a to-and-fro motion along probe support track 17 just.
By above-mentioned steps, complete reciprocating driver element 3 on base plate 2, gather the setting of groove unit 4 and reciprocating collecting unit 5, the preparatory stage is complete.
Test phase:
Actuating motor, rotating disk 7 rotates under the drive of motor, and rotating disk 7 drives probe support 15 to move back and forth along probe support track 17 when rotating by connecting rod 8 and push rod 10.While probe support 15 moves back and forth, probe 16 correspondence be fixed on probe support 15 enters to gather in groove unit 4 and gathers in hole 13 by the every column data gathering groove 11 formation, and detect through the output voltage of the Check point of the 13 pairs of pipe under test 1 in data capture hole, and the magnitude of voltage collected is exported.
Carrying out in voltage acquisition process, the rotating speed of motor is enough slow in ensure that probe 16 all can complete the voltage acquisition of corresponding Check point smoothly after moving to every column data and gathering in hole 13.In the process that probe support 15 moves back and forth, connected by the projection 12 of arc, so the movement of more convenient probe 16 between adjacent two data capture holes 13 because every bar gathers in groove 11.Probe 16 leave a data capture hole 13 to next number according to collection hole 13 move time, the lower main body 22 of probe is by the upper main body 19 of protruding 12 press-in, and in upper main body 19 upper spring 20 effect under be pressed on all the time gather groove 11 internal surface on, in probe 16 moving process, ball 24 compresses further by internal probe 23 by the lower spring 21 in probe 16 times main bodys 22, the movement of probe 16 is completed in ball 24 rolls, and ball is in the state of compression all the time, thus ensure that the smooth collection of voltage data, namely probe 16 instead of in prior art the effect catching electrode.
Embodiment 2:
The present embodiment is from the difference of embodiment 1: the structure gathering groove unit 4 and reciprocating collecting unit 5 corresponding is with it different.
As shown in Figure 8, in collection groove unit 4, gather groove 11 and replaced by recoverable collection groove 27.Recoverable collection groove 27 is offered on a base plate 2 equally.The quantity of recoverable collection groove 27 and the spacing of adjacent two recoverable collection grooves 27 are determined by detection scheme; In every bar recoverable collection groove 27, be provided with multiple data capture hole 13, the quantity in data capture hole 13 and the spacing in adjacent two data capture holes 13 are determined by detection scheme equally.
Be provided with at the two ends of the recoverable collection groove 27 of every bar and return ring 26.Recoverable collection groove 27 carries out horizontal-extending, forms the horizontal segment returning ring 26, and the horizontal segment returning ring 26 is connected to form bending section to recoverable collection groove 27 is bending with the end of recoverable collection groove 27 again.The ring 26 that returns at recoverable collection groove 27 two ends is symmetrical arranged, identical with recoverable collection groove 27 width and formed one.
In the present embodiment, reciprocating collecting unit 5 difference from Example 1 is that the structure of probe 16 is different.As shown in Figure 9, probe 16 comprises main body 28 and is sleeved on the recoverable probe 29 in main body 28, main body 28 is the cylindrical body of hollow, spring is provided with in its cavity, through hole is offered in the bottom of main body 28, recoverable probe 29 passes in this through hole, and is in the state pressed down under the action of the spring all the time.
Recoverable probe 29 upper end is inverted round table-like, and the diameter in its upper circular face is greater than the diameter of main body 28 bottom through-hole, to prevent from dropping out in recoverable probe 29 autonomous agent 28.Autonomous agent 28 bottom surface, recoverable probe 29 lower end connects a bending probe after drawing, and is integrated designs and make for conductive material in recoverable probe 29 with the bending probe of round table-like top and bottom.The top of recoverable probe 29 is provided with data acquisition line concentration 18, and the upper end of data acquisition line concentration 18 the other end autonomous agent 28 is drawn.
In the present embodiment, probe support 15 moves back and forth under the drive of push rod 10 in recoverable collection groove 27, when probe 16 moves to end, what the recoverable probe 29 in probe 16 entered recoverable collection groove 27 end returns in ring 26, and carry out annular movement along returning ring 26, when push rod 10 starts to return, recoverable probe 29 carries out corresponding rotation and again enters in recoverable collection groove 27, achieves the to-and-fro motion of probe track.
Embodiment 3:
Embodiment 3 is with the difference of embodiment 1: in the present embodiment, reciprocating driver element 3 and reciprocating collecting unit 5 are all directly fixed in pipe under test 1, and base plate 2 only gathers groove unit 4 for arranging.
Embodiment 4:
Embodiment 4 is with the difference of embodiment 1: in the present embodiment, is provided with position limit switch at the two ends gathering groove 11, and in the contact access controller of position limit switch, controller connects motor, for controlling the clockwise and anticlockwise of motor.When probe support 15 moves to certain one end gathering groove 11, triggered by corresponding position limit switch, now position limit switch exports control signal to controller, controls motor rotate backward by controller, reverse promotion probe support 15 moves, and realizes the to-and-fro motion of probe support 15.
Embodiment 5:
Embodiment 5 is with the difference of embodiment 4:
Reciprocating driver element in embodiment 4 is omitted, by the direct or indirect linking probe support 15 of linear electric motor, is directly realized the to-and-fro motion of probe support 15 by linear electric motor.
The mobile electrode type pipeline non-destructive testing device that should be used for electric field fingerprint method in the specific implementation, can be the combination in any of the various embodiments described above.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (9)
1. one kind is applied to the mobile electrode type pipeline non-destructive testing device of electric field fingerprint method, comprise pipe under test (1), pipe under test (1) is provided with region to be measured, some Check points are provided with in region to be measured, it is characterized in that: be provided with on the surface in pipe under test (1) region to be measured the collection groove unit (4) exposed by Check point with the form of non-solder, reciprocating collecting unit (5) is had in the surface erection gathering groove unit (4), reciprocating collecting unit (5) is connected with reciprocating driver element (3) and moves back and forth along gathering groove unit (4) and complete the collection of Check point data under it drives.
2. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 1, it is characterized in that: described collection groove unit (4), reciprocating collecting unit (5) and reciprocating driver element (3) are all arranged on base plate (2), base plate (2) cross section is arc-shaped, is fixed on the surface of pipe under test (1).
3. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 1 and 2, it is characterized in that: described collection groove unit (4) comprises many collection grooves (11) axially arranged along pipe under test (1), gather the surface that groove (11) is opened in base plate (2), every bar gathers groove (11) inner homogeneous and is provided with multiple data capture hole (13), data capture hole (13) is through hole, with the Check point one_to_one corresponding in the upper region to be measured of pipe under test (1).
4. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 3, it is characterized in that: in described collection groove (11), connected by protruding (12) between two adjacent data capture holes (13), protruding (12) both sides are domatic design.
5. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 1 and 2, it is characterized in that: described reciprocating collecting unit (5) comprises probe support track (17), probe support (15) and multiple probe (16), probe support track (17) is arranged on the both sides gathering groove unit (4), probe support (15) to be slidably arranged in probe support track (17) and to be erected at the outside gathering groove unit (4), and probe support (15) is connected with reciprocating driver element (3) and realizes to-and-fro motion; Probe (16) is fixed on the inner side surface of probe support (15), corresponding with a row or column Check point in some Check points of array arrangement in pipe under test (1) region to be measured.
6. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 5, it is characterized in that: described probe (16) comprises main body (19) and lower main body (22), upper main body (19) inside is provided with upper spring (20), lower main body (22) is sleeved on main body (19) inside and under the effect of upper spring (20), is in the bottom of upper main body (19), in lower main body (22), be provided with elasticity acquisition mechanism, elasticity acquisition mechanism contacts with the Check point in pipe under test (1) region to be measured and realizes data capture.
7. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 6, it is characterized in that: described elasticity acquisition mechanism comprises lower spring (21), internal probe (23) and ball (24), lower spring (21) is positioned at the cavity on lower main body (22) top, the rotating ball grooves (25) being positioned at lower main body (22) bottom of ball (24), internal probe (23) enters downwards in ball grooves (25) from the cavity on lower main body (22) top and contacts with ball (24) under the effect of lower spring (21); Internal probe (23) and ball (24) are made for conductive material, and ball (24) exposes from ball grooves (25) bottom and contacts with the Check point in region to be measured, is provided with the data acquisition line concentration (18) for data being drawn at internal probe (23) top.
8. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 1 and 2, it is characterized in that: described reciprocating driver element (3) comprises oval rotating disk (7), connecting rod (8) and push rod (10), the card of the output shaft vertical dial (7) of motor is fixed, the rotating edge being connected to rotating disk (7) in one end of connecting rod (8), the other end of connecting rod (8) connects one end of push rod (10), and the other end of push rod (10) is connected with reciprocating collecting unit (5).
9. the mobile electrode type pipeline non-destructive testing device being applied to electric field fingerprint method according to claim 8, is characterized in that: the both sides of described push rod (10) are also respectively arranged with a push rod track (9) for leading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658901.4A CN105202374B (en) | 2015-10-14 | 2015-10-14 | A kind of mobile electrode type pipeline non-destructive testing device applied to electric field fingerprint method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658901.4A CN105202374B (en) | 2015-10-14 | 2015-10-14 | A kind of mobile electrode type pipeline non-destructive testing device applied to electric field fingerprint method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105202374A true CN105202374A (en) | 2015-12-30 |
| CN105202374B CN105202374B (en) | 2017-08-29 |
Family
ID=54950206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510658901.4A Active CN105202374B (en) | 2015-10-14 | 2015-10-14 | A kind of mobile electrode type pipeline non-destructive testing device applied to electric field fingerprint method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105202374B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561348A (en) * | 2017-08-25 | 2018-01-09 | 张安全 | Aluminum cell anodic current is distributed and voltage drop On-line Measuring Method |
| WO2020087519A1 (en) * | 2018-11-02 | 2020-05-07 | 大族激光科技产业集团股份有限公司 | Quality test device, method, and system, and integrated probe assembly |
| CN111289575A (en) * | 2018-12-07 | 2020-06-16 | 中南大学 | Method for detecting quality of conductive pipe bar based on relative motion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963679A (en) * | 1996-01-26 | 1999-10-05 | Harris Corporation | Electric field fingerprint sensor apparatus and related methods |
| CN202484610U (en) * | 2011-12-28 | 2012-10-10 | 四川中油天能科技有限公司 | Metal pipeline corrosion monitoring system based on electric potential matrix |
| CN203148889U (en) * | 2013-03-19 | 2013-08-21 | 中国石油大学(华东) | Nondestructive testing device |
| CN104569139A (en) * | 2015-02-03 | 2015-04-29 | 中国石油大学(华东) | Pipeline nondestructive testing device based on electric field fingerprint method |
| CN204405597U (en) * | 2015-02-03 | 2015-06-17 | 中国石油化工股份有限公司胜利油田分公司技术检测中心 | A kind of the cannot-harm-detection device based on electric field fingerprint method |
-
2015
- 2015-10-14 CN CN201510658901.4A patent/CN105202374B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963679A (en) * | 1996-01-26 | 1999-10-05 | Harris Corporation | Electric field fingerprint sensor apparatus and related methods |
| CN202484610U (en) * | 2011-12-28 | 2012-10-10 | 四川中油天能科技有限公司 | Metal pipeline corrosion monitoring system based on electric potential matrix |
| CN203148889U (en) * | 2013-03-19 | 2013-08-21 | 中国石油大学(华东) | Nondestructive testing device |
| CN104569139A (en) * | 2015-02-03 | 2015-04-29 | 中国石油大学(华东) | Pipeline nondestructive testing device based on electric field fingerprint method |
| CN204405597U (en) * | 2015-02-03 | 2015-06-17 | 中国石油化工股份有限公司胜利油田分公司技术检测中心 | A kind of the cannot-harm-detection device based on electric field fingerprint method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561348A (en) * | 2017-08-25 | 2018-01-09 | 张安全 | Aluminum cell anodic current is distributed and voltage drop On-line Measuring Method |
| WO2020087519A1 (en) * | 2018-11-02 | 2020-05-07 | 大族激光科技产业集团股份有限公司 | Quality test device, method, and system, and integrated probe assembly |
| US11307160B2 (en) | 2018-11-02 | 2022-04-19 | Han's Laser Technology Industry Group Co., Ltd | Quality detection device, quality detection method, and integrated probe assembly |
| CN111289575A (en) * | 2018-12-07 | 2020-06-16 | 中南大学 | Method for detecting quality of conductive pipe bar based on relative motion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105202374B (en) | 2017-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102455248B (en) | Chain automatic detection system | |
| CN105202374A (en) | Movable-electrode type pipe nondestructive detecting device applied to electric field fingerprint method | |
| KR101045524B1 (en) | An automated ultrasonic scanner for dissimilar metal weld | |
| CN102759564B (en) | A kind of variable diameter pipe external magnetic memory detection device | |
| CN102809605B (en) | Two-end internal-external synchronous type ultrasonic automatic defectoscope for large-sized shell ring piece | |
| CN102607437A (en) | Movable online detection device and detection method of enamelled wire diameter | |
| JP2013543461A (en) | High-pressure probe device and tire inner surface abnormality detection method | |
| CN209215356U (en) | It is a kind of for detecting the device of water quality | |
| KR20230070173A (en) | Fin tube inspection device of heat recovery steam generator | |
| CN202002617U (en) | Movable on-line enameled wire diameter detection device | |
| CN106656040A (en) | Fault diagnosis method and apparatus for photovoltaic modules in photovoltaic power station | |
| CN202794107U (en) | Variable diameter pipe outside magnetic memory detection device | |
| JP2012504756A (en) | Improved detection of deposits comprising at least one ferromagnetic material on or near the outer wall of the tube | |
| CN102809608A (en) | Trolley type automatic ultrasonic flaw-detecting machine with built-in robot for large cylindrical shell section parts | |
| CN206036676U (en) | Pipeline corrodes on -line measuring device | |
| CN101509897A (en) | Dry transformer coil defect detecting method | |
| CN108508165B (en) | Food detection device and application method thereof | |
| CN109916703A (en) | Solder joint detection device and solder joint detection method | |
| CN104374557B (en) | Rotary machine second harmonic generation fault detecting method and system based on shaft center orbit | |
| CN106124619A (en) | A kind of belt ultrasound detection wheel seach unit group | |
| CN110530974B (en) | Self-propelled nondestructive testing device for steel plate | |
| CN104597122A (en) | Ultrasonic phased-array automatic check out system used for detecting continuous-casting roller defects | |
| Xi et al. | Design of an oil pipeline nondestructive examination system based on ultrasonic testing and magnetic flux leakage | |
| CN106443751B (en) | Solidify bucket surface dose rate detection device and its detection method | |
| CN108167654A (en) | A kind of movable type oil pipeline on-Line Monitor Device and its monitoring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |