CN108956758A - A kind of pipe welding line detecting method and device - Google Patents
A kind of pipe welding line detecting method and device Download PDFInfo
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- CN108956758A CN108956758A CN201810945910.5A CN201810945910A CN108956758A CN 108956758 A CN108956758 A CN 108956758A CN 201810945910 A CN201810945910 A CN 201810945910A CN 108956758 A CN108956758 A CN 108956758A
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- pipeline
- magnetic field
- line detecting
- welding line
- pipe welding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/85—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using magnetographic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
Abstract
The present invention relates to detection technique fields, disclose a kind of pipe welding line detecting method and device.Pipe welding line detecting method comprising acquire the Magnetic Field that pipeline issues, and judge the position while welding of pipeline according to the Magnetic Field that pipeline issues.The welding position of pipeline and the Magnetic Field of non-solder position have significantly different.The welding region magnetic line of force of pipeline girth weld has biggish fluctuation compared to the magnetic line of force of pipeline body.Magnetic Field by obtaining pipeline can judge the position while welding on pipeline.This pipe welding line detecting method can effectively, easily position buried or cladding steel pipe girth joint, it might even be possible to which whether there is or not major defects to judge to commissure for Magnetic Field.Pipe welding line detecting device includes Magnetic Sensor and the master controller that is electrically connected with Magnetic Sensor, for realizing above-mentioned detection method, therefore also has same beneficial effect.
Description
Technical field
The present invention relates to detection technique fields, in particular to a kind of pipe welding line detecting method and device.
Background technique
Convey all kinds of media metallic conduit build when be all by one successively (such as every section 8m-12m) steel pipe weld at the scene
It connects and joins end to end to form pipeline one by one, the welding bead for welding formation two-by-two is circular weld (abbreviation girth joint), is usually built at the scene
If process will do anti-corrosion and isothermal holding to girth joint, and ditch to be descended to fill.For pipeline integrity, at girth joint just at
Weak link in pipe-line system, mass defect or military service process when may have welding installation can occur corrosion or
The problems such as corrosion-resistanting interpolating port measure is failed, needs to carry out detecting appraisal and reparation to it.
When pipeline is landfilled or is coated by other materials, and can not observe directly weld seam, the position of weld seam is just difficult
With determination.For example after descending pipelines into ditch landfill, to finding or confirming some specified girth joint again from earth's surface, just become to be stranded very much
Detection (ILI) has found that pipeline somewhere girth joint is defective in difficulty, even pipeline intelligent, and carries out directly verifying detection to it
Or it is exactly to carry out Detection location to the girth joint that the first step repaired, which is also a most difficult step, to carry out excavating verifying and repair
It is multiple.When overhead pipeline external is enclosed with clad, the problem of being similarly difficult to weld and HAZ will be also faced.
Now the girth joint of pipeline is positioned and detected currently without scientific, effective, convenient and fast method.
Summary of the invention
In view of this, the purpose of the present invention includes providing a kind of pipe welding line detecting method, to solve the ring of steel pipe
Weld seam is difficult to the problem of positioning.
Another object of the present invention is to provide a kind of pipe welding line detecting devices, for realizing above-mentioned pipeline-weld
Detection method effectively, easily can carry out detection positioning to the girth joint of steel pipe.
The embodiment of the present invention is achieved in that
In a first aspect, the embodiment of the present invention provides a kind of pipe welding line detecting method, for detecting the weld seam of steel pipe
Position, pipe welding line detecting method include:
Acquire the Magnetic Field that pipeline issues；
The position while welding of pipeline is judged according to the Magnetic Field that pipeline issues.
In an embodiment of the present invention, the step of Magnetic Field of acquisition pipeline sending includes:
Detect the Magnetic Field that each position of the pipeline in preset length issues.
In an embodiment of the present invention, pipe welding line detecting method further include:
Obtain location information corresponding to Magnetic Field.
In an embodiment of the present invention, pipe welding line detecting method further include:
Export location information corresponding to Magnetic Field and Magnetic Field.
In an embodiment of the present invention, pipe welding line detecting method further include:
Store location information corresponding to Magnetic Field and Magnetic Field.
In an embodiment of the present invention, Magnetic Field is acquired by Magnetic Sensor, is acquired pipeline on the ground and is issued
Magnetic Field the step of after further include information handling step, information handling step includes:
Digital signal is converted by Magnetic Field；
Digital signal is filtered.
In an embodiment of the present invention, information handling step further include:
Gain supplement is carried out to the digital signal by filtering processing.
Second aspect, the embodiment of the present invention also provides a kind of pipe welding line detecting device, for detecting the weldering of steel pipe
Position is stitched, detection device includes:
Magnetic Sensor, for acquiring the Magnetic Field of pipeline sending；And
The master controller being electrically connected with Magnetic Sensor, the Magnetic Field for being issued according to pipeline judge the weld seam position of pipeline
It sets.
In an embodiment of the present invention, detection device further includes GPS positioning instrument, and GPS positioning instrument is for obtaining magnetic biography
The location information of sensor.
In an embodiment of the present invention, Magnetic Sensor is used to detect what each position of the pipeline in preset length issued
Magnetic Field；
Detection device further includes the output device being electrically connected with master controller, output device for export Magnetic Field and
Location information corresponding to Magnetic Field.
In an embodiment of the present invention, Magnetic Sensor is used to convert digital signal for Magnetic Field；Pipeline-weld
Detection device further includes the filter amplifier for being filtered to the digital signal that Magnetic Sensor exports
In an embodiment of the present invention, pipe welding line detecting device further includes for carrying out gain benefit to digital signal
The signal gain device filled.
The beneficial effect of the embodiment of the present invention is:
Pipe welding line detecting method provided in an embodiment of the present invention, for detecting the position while welding of steel pipe comprising
The Magnetic Field that pipeline issues is acquired, and judges the position while welding of pipeline according to the Magnetic Field that pipeline issues.Due to steel pipe
Under the action of manual operation (such as welding, cathodic protection processing etc.) or earth magnetic field, itself is more micro- with one in road
Weak magnetism, and the Magnetic Field of the welding position of pipeline and non-solder position have it is significantly different.The welding of pipeline girth weld
Regional magnetic force line has biggish fluctuation compared to the magnetic line of force of pipeline body, and letting out for the magnetic line of force is also named in the fluctuation of this magnetic line of force
Dew.Magnetic Field by obtaining pipeline can judge the position while welding on pipeline.This pipe welding line detecting method can have
Effect, easily to it is buried or cladding steel pipe girth joint position, it might even be possible to Magnetic Field to commissure whether there is or not
Major defect is judged.
The pipe welding line detecting device of the embodiment of the present invention includes Magnetic Sensor and the master control that is electrically connected with Magnetic Sensor
Device processed, Magnetic Sensor are used to acquire the Magnetic Field of pipeline sending；Master controller is used to receive the magnetic of Magnetic Sensor transmission
Information, and judge according to the Magnetic Field that pipeline issues the position while welding of pipeline.Pipe welding line detecting device is for realizing upper
The detection method stated, therefore also there is same beneficial effect.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic diagram that pipe welding line detecting device detects pipeline in the embodiment of the present invention；
Fig. 2 is the distribution schematic diagram of Magnetic Sensor in the embodiment of the present invention；
Fig. 3 is the module diagram of pipe welding line detecting device in the embodiment of the present invention；
Fig. 4 is the flow chart of pipe welding line detecting method in the embodiment of the present invention.
Icon: 010- tube body；012- weld seam；100- pipe welding line detecting device；110- pedestal；112- Magnetic Sensor；
120-GPS position indicator；130- master controller；140- output device；150- input unit；160- memory；170- power supply；180-
Filter amplifier；190- signal gain device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present invention, it should be noted that term " center ", "upper", "lower", "vertical", " water
It is flat ", "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings or the hair
Bright product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
It is welded in the manufacture of the bearing devices such as pipeline and occupies an important position, welding quality is to the quality of pipeline and using safe
Reliability has a direct impact, and many pipeline accidents all originate from welding defect.Buried steel pipe at interval of certain length (such as
12m) there is a girth joint, girth joint is the important component and weak link of long distance pipeline, how to control girth joint
Quality, guarantee buried steel pipe during service will not because of girth joint failure and cause safety accident, be pipe safety fortune
One of the problem of capable premise and pipeline management person is most paid close attention to.But do not have in pipeline inspection technology means both domestic and external at present
There is the effective Detection location and method of determination and evaluation for being directed to girth joint.
Pipeline is in construction period, after welding installation is completed in segmentation, needs to carry out girth joint including ray and ultrasound
Non-destructive testing, if showing that certain road weld seam has the welding defect that must reprocess in non-destructive testing report, the segment pipe at this time
Lower ditch backfill may be completed, can just find this defective girth joint, pipeline owner on the ground without any method
Whole section of excavation can only be carried out to inbuilt pipeline with unit in charge of construction, expended huge manpower and material resources cost, be also easy to newly-built
The external anti-corrosion layer of pipeline causes inevitably to damage.For buried pipeline, especially long distance pipeline, topographical features can be continuous
Variation, although pipeline management person better implements the Integrity Management of pipeline during pipe-line construction, earth's surface as far as possible
Ground is arranged test pile, mileage board and various marker pegs, and line walking administrative staff will be seen that pipeline is general by these sign boards
Position and trend are laid, but these marks are all setting spaced apart along pipeline, test pile is generally spaced 1000
Rice setting, the setting of 400 to 800 meters of marker peg interval, most of mark dresses and sign board can because the time, environmental factor and damage
It ruins, even if the sign board along pipeline above the ground is clear and accurate, is also difficult side on the ground by these sign boards and finds pipeline accurately
Construction installation is completed from buried pipeline in 12 meters or so of the girth joint position in upper interval, after backfilling and coming into operation, manager without
Method knows the specific location of pipeline girth joint, the i.e. weak link of pipeline risk that may be present.Similarly, on aerial pipeline,
If pipeline outer wall is enclosed with clad, staff or manager can not also learn the specific location of girth joint, this is to inspection
It repairs and brings inconvenience.
The embodiment of the present invention is obtained to improve above-mentioned problem encountered.Steel pipe tube body is metal material
Matter, since steel pipe is under the action of manual operation (such as welding, cathodic protection processing etc.) or earth magnetic field, itself band
There is a more faint magnetism, to generate certain magnetic field.Inventor is the study found that in pipeline body region, tube body magnetic field
Signal be normal, stable.Commissure is since its formation basic theory causes its material composition complex, and weld metal is from height
Warm liquid cooled experienced two times of crystallization, material properties change, therefore the magnetic field of welding region to room temperature solid-state
Information has biggish change compared with the Magnetic Field in non-solder region, and the welding region magnetic line of force of pipeline girth weld is compared to pipe
The magnetic line of force of road ontology has biggish fluctuation, and the fluctuation of this magnetic line of force is also named the leakage of the magnetic line of force, let out by capturing these
The natural magnetic field of dew, it can be determined that the position of girth joint on pipeline.
The embodiment of the present invention provides a kind of pipe welding line detecting method and one kind for realizing the pipe welding line detecting side
The pipe welding line detecting device of method.For the ease of the understanding of pipe welding line detecting method, first to the weld seam detection of the present embodiment
Device is illustrated.
Fig. 1 is the schematic diagram that pipe welding line detecting device detects pipeline in the embodiment of the present invention；Fig. 2 is the present invention
The distribution schematic diagram of Magnetic Sensor in embodiment；Fig. 3 is the module diagram of pipe welding line detecting device in the embodiment of the present invention.
Please refer to Fig. 1 to Fig. 3, pipe welding line detecting device 100 provided in this embodiment include master controller 130, Magnetic Sensor 112,
Output device 140, input unit 150, GPS positioning instrument 120, memory 160 and power supply 170.Magnetic Sensor 112, output dress
It sets 140, input unit 150, GPS positioning instrument 120, memory 160 and power supply 170 to be electrically connected with master controller 130, power supply
170 pass through master controller 130 to the power supply of master controller 130 for directly or indirectly powering to each appliance arrangement, such as directly
It powers indirectly to Magnetic Sensor 112.
Show the part of pipeline in Fig. 1, i.e., two axial connected two tube bodies 010 are weldering between two tube bodies 010
Seam 012.In the present embodiment, pipe welding line detecting device 100 includes multiple Magnetic Sensors 112, is chosen as 4-8, multiple magnetic
Sensor 112 is arranged on the pedestal 110 of a bar shaped along the length direction uniform intervals of pedestal 110.It is embedded in ground with detection
Under pipeline for, when in use, on the ground that multiple Magnetic Sensors 112 are located at right above pipeline, multiple Magnetic Sensors 112
Orientation it is vertical with the length direction of pipeline, along pipeline length direction detection when, received according to Magnetic Sensor 112
Magnetic field signal can decide whether to reach at weld seam 012, and can pass through magnetic received by different Magnetic Sensors 112
Information judges the depth of subsurface locating for weld seam 012.
GPS positioning instrument 120 is kept fixed with pedestal 110, is used to obtain the real-time location information of pedestal 110.Therefore,
It can obtain location information corresponding with this Magnetic Field while Magnetic Sensor 112 collects Magnetic Field.The magnetic
Information with location information be it is matched, technical staff can judge the position of weld seam 012 by the two.
Due to the more faint of Magnetic Field and it may include some interference informations, pipe welding line detecting device
100 further include filter amplifier 180 and signal gain device 190, and the two is electrically connected with master controller 130.Magnetic Sensor
Digital signal is converted by Magnetic Field after 112 acquisition Magnetic Fields.Digital signal comprising Magnetic Field passes through filter and amplification
Interference information is eliminated in the filtering processing of device 180, is supplemented using the gain of signal gain device 190, is convenient for main control after amplification
Device 130 carries out processing judgement.
In the present embodiment, output device 140 is display, and display is electrically connected with master controller 130, is worked as showing
Signal waveform, location information, function menu, electricity of preceding measurement etc..Display can be set on pedestal 110, can also be single
Solely setting.
Input unit 150 is electrically connected with master controller 130 comprising button, keyboard, touch-control input board, one in mouse
Kind is a variety of.It is used to be turned on or off detection device, and operation master controller 130 controls the operation of each equipment.
In the present embodiment, pipe welding line detecting device 100 further includes memory 160, can store Magnetic Sensor 112,
The information such as the information collected of GPS positioning instrument 120 and corresponding time.The information that memory 160 is stored can be for master control
Device 130 processed calls, and can also recall and check for technical staff.Memory 160 can be integrated with the storage dress of master controller 130
It sets, is also possible to the flash memory device for plug, such as USB flash disk and mobile hard disk.
In the present embodiment, master controller 130 can be single-chip microcontroller, CPU, PLC etc., and master controller 130 is for controlling magnetic
Sensor 112 acquires the Magnetic Field that pipeline issues, and judges weld seam 012 of pipeline further according to the Magnetic Field that pipeline issues
It sets.It is also used to control the location information that GPS positioning instrument 120 obtains Magnetic Sensor 112.It is also used to control the output of output device 140
Location information corresponding to Magnetic Field and Magnetic Field.Further, main control be also used to control filter amplifier 180 with
And signal gain device 190 is filtered to the digital signal of the output of Magnetic Sensor 112 and gain supplement.Master controller
130 can integrate on the circuit board being set to inside pedestal 110, can also be separately provided.
By taking the pipeline for being embedded in underground as an example, the pipe welding line detecting device 100 of the present embodiment when in use, staff
The pedestal 110 for being provided with Magnetic Sensor 112 can be held, enables it be located at the surface of pipeline to be detected, enables 112 court of Magnetic Sensor
Under, length direction of the orientation perpendicular to pipeline.It is moved along pipe lengths, the magnetic field letter of the detection each position of pipeline
Breath, while location information is obtained with GPS positioning instrument 120.Two kinds of information export on output device 140 (i.e. display) simultaneously,
Whether staff can reach position while welding by Magnetic Field interpretation.The Magnetic Field and Magnetic Field pair of pipeline simultaneously
The location information answered, temporal information can be stored in memory 160 to call.Similarly, outside some cross-over pipes
When being enclosed with clad and being difficult to judge position while welding, it can also be detected by similar methods with this detection device.
Fig. 4 is the flow chart of pipe welding line detecting method in the embodiment of the present invention, referring to figure 4., the pipeline of the present embodiment
Weld inspection method includes:
Step S1, the Magnetic Field that acquisition pipeline issues.
By taking the pipe welding line detecting device 100 of the embodiment of the present invention as an example, step S1 can be by Magnetic Sensor 112 real
It is existing.The step may include the Magnetic Field for detecting each position of the pipeline in preset length and issuing, specifically, being sensed using magnetic
Device 112 is moved along the length direction of pipeline, acquires the real-time Magnetic Field in each position, and be transferred to master controller 130.
Step S2 obtains location information corresponding to Magnetic Field.
The step carries out simultaneously with step S1, by taking the pipe welding line detecting device 100 of the embodiment of the present invention as an example, step S2
It can be realized by GPS positioning instrument 120, GPS positioning instrument 120 can acquire the location information of Magnetic Sensor 112 in real time, because
This, corresponding to the Magnetic Field that the location information and Magnetic Sensor 112 acquire in real time.
Step S3 judges the position while welding of pipeline according to the Magnetic Field that pipeline issues.
By taking the pipe welding line detecting device 100 of the embodiment of the present invention as an example, step S3 can be by master controller 130 real
It is existing, judged corresponding to a certain Magnetic Field whether to be position while welding by master controller 130.In other implementations of the invention
In, the Magnetic Sensor 112 that staff holds pipe welding line detecting device 100 detects, and has grasped Magnetic Sensor in real time
112 position, therefore GPS positioning instrument 120 can also be not provided with to obtain location information, when the Magnetic Field detected meets weldering
When the feature of the Magnetic Field of seam, judge this position for the position of weld seam.
Further, pipe welding line detecting method can also include information handling step, and Magnetic Field passes through Magnetic Sensor
It further include information handling step, information processing step after the step of 112 acquisitions, the Magnetic Field that acquisition pipeline issues on the ground
Suddenly include converting digital signal for Magnetic Field, digital signal is filtered, believe by the number of filtering processing
Number carry out gain supplement.By taking the pipe welding line detecting device 100 of the embodiment of the present invention as an example, Magnetic Sensor 112 can will be collected
Magnetic Field be converted into digital signal, filter amplifier 180 and signal gain device 190 can be filtered respectively with
And gain supplement.
Further, pipe welding line detecting method can also include position corresponding to output Magnetic Field and Magnetic Field
Confidence breath.In the present embodiment, which is realized by the display as output device 140, display and master controller
130 electrical connections, for showing the signal waveform currently measured, location information, function menu, electricity etc..
Further, pipe welding line detecting method further includes the letter of position corresponding to storage Magnetic Field and Magnetic Field
Breath.In the present embodiment, memory 160 is for storage tape information and location information corresponding with Magnetic Field, time letter
Breath etc..Therefore, staff may not necessarily make real-time analysis, data can be called to be analyzed from memory 160 with the later period.
The pipe welding line detecting method of the embodiment of the present invention can on the ground just position buried pipeline weld seam,
Relevant staff is helped to grasp the specific location of pipeline-weld, it is ensured that these weak parts are above the ground without security risk.?
Other detection datas are combined after obtaining position while welding data, more scientific pipeline rehabilitation scheme can be formulated, it is ensured that pipeline
Safe operation.Pipeline-weld can be positioned and be detected without removing anticorrosion insulating layer.Pipe excavation is being verified or repaired
Before multiple, using the pipe welding line detecting device 100 of the embodiment of the present invention, it can quickly position and excavate the specific weld seam position in region
It sets, has saved the excavation cost of non-position while welding.Detection (ILI) and routine are lossless in some outer detections (ECDA) with intelligence
Detection method can not examinations special pipeline section, the present invention it is unrestricted, can quickly and effectively carry out weld and HAZ and detection.
The square tack weld on the ground of detection method through this embodiment, grasps the position of weld seam, then complete it is outer
, can be according to the testing result of external anti-corrosion layer and the specific location of weld seam after the detection of erosion resistant coating, determination is more reasonably opened
Digging verifying and recovery scenario can preferentially select herein if that is, erosion resistant coating breakage is located near repaired mouth position or repaired mouth
Excavation verifying is carried out, first verifies that the weld seam under repaire belt with the presence or absence of defect, excludes weld seam risk that may be present, compares in this way
It is simple to carry out external anti-corrosion layer detection, external anti-corrosion layer, which is repaired, only in accordance with external anti-corrosion layer badly broken is more of practical significance.
In addition, pipe welding line detecting device 100 acquires a large amount of tube bodies and commissure magnetic field data, established by comparing
Database.By the comparison of zero defect weld data and defective weld data, to characterize defect that may be present in weld seam.
In conclusion pipe welding line detecting method provided in an embodiment of the present invention, for detecting the weld seam position of steel pipe
It sets comprising acquire the Magnetic Field that pipeline issues, and judge the position while welding of pipeline according to the Magnetic Field that pipeline issues.By
In steel pipe under the action of manual operation (such as welding, cathodic protection processing etc.) or earth magnetic field, itself has one
A more faint magnetism, and the Magnetic Field of the welding position of pipeline and non-solder position have it is significantly different.Pipeline boxing
The welding region magnetic line of force of seam has biggish fluctuation compared to the magnetic line of force of pipeline body, and magnetic force is also in the fluctuation of this magnetic line of force
The leakage of line.Magnetic Field by obtaining pipeline can judge the position while welding on pipeline.This pipe welding line detecting method
Effectively, easily buried or cladding steel pipe girth joint can be positioned, it might even be possible to which Magnetic Field is to weld seam
Whether there is or not major defects to be judged at place.
The pipe welding line detecting device of the embodiment of the present invention includes Magnetic Sensor and the master control that is electrically connected with Magnetic Sensor
Device processed, Magnetic Sensor are used to acquire the Magnetic Field of pipeline sending；Master controller is used to receive the magnetic of Magnetic Sensor transmission
Information, and judge according to the Magnetic Field that pipeline issues the position while welding of pipeline.Pipe welding line detecting device is for realizing upper
The detection method stated, therefore also there is same beneficial effect.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of pipe welding line detecting method, for detecting the position while welding of steel pipe, which is characterized in that the pipeline-weld
Detection method includes:
Acquire the Magnetic Field that the pipeline issues；
The position while welding of the pipeline is judged according to the Magnetic Field that the pipeline issues.
2. pipe welding line detecting method according to claim 1, which is characterized in that acquire the magnetic field letter that the pipeline issues
The step of breath includes:
Detect the Magnetic Field that each position of the pipeline in preset length issues.
3. pipe welding line detecting method according to claim 2, which is characterized in that the pipe welding line detecting method is also wrapped
It includes:
Obtain location information corresponding to the Magnetic Field.
4. pipe welding line detecting method according to claim 3, which is characterized in that the pipe welding line detecting method is also wrapped
It includes:
Export the location information corresponding to the Magnetic Field and the Magnetic Field.
5. pipe welding line detecting method according to claim 3, which is characterized in that the pipe welding line detecting method is also wrapped
It includes:
Store the location information corresponding to the Magnetic Field and the Magnetic Field.
6. pipe welding line detecting method according to claim 1, which is characterized in that the Magnetic Field passes through Magnetic Sensor
It further include information handling step after the step of acquiring, acquiring the Magnetic Field that the pipeline issues on the ground, the information
Processing step includes:
Digital signal is converted by the Magnetic Field；
The digital signal is filtered.
7. pipe welding line detecting method according to claim 6, which is characterized in that the information handling step further include:
Gain supplement is carried out to the digital signal Jing Guo the filtering processing.
8. a kind of pipe welding line detecting device, for detecting the position while welding of steel pipe, which is characterized in that the detection device
Include:
Magnetic Sensor, the Magnetic Field issued for acquiring the pipeline；And
The master controller being electrically connected with the Magnetic Sensor, for being issued according to the pipeline the Magnetic Field judgement described in
The position while welding of pipeline.
9. pipe welding line detecting device according to claim 8, which is characterized in that the detection device further includes GPS fixed
Position instrument, the GPS positioning instrument are used to obtain the location information of the Magnetic Sensor.
10. pipe welding line detecting device according to claim 9, which is characterized in that the Magnetic Sensor is for detecting institute
State the Magnetic Field that each position of the pipeline in preset length issues；
The detection device further includes the output device being electrically connected with the master controller, and the output device is described for exporting
The location information corresponding to Magnetic Field and the Magnetic Field.
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| CN201810945910.5A CN108956758A (en) | 2018-08-20 | 2018-08-20 | A kind of pipe welding line detecting method and device |
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