CN112444559B - Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree - Google Patents
Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree Download PDFInfo
- Publication number
- CN112444559B CN112444559B CN202011215166.7A CN202011215166A CN112444559B CN 112444559 B CN112444559 B CN 112444559B CN 202011215166 A CN202011215166 A CN 202011215166A CN 112444559 B CN112444559 B CN 112444559B
- Authority
- CN
- China
- Prior art keywords
- defect
- detection
- test block
- simulation test
- flange plate
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 241000191291 Abies alba Species 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 29
- 230000007547 defect Effects 0.000 claims abstract description 194
- 238000001514 detection method Methods 0.000 claims abstract description 119
- 238000012360 testing method Methods 0.000 claims abstract description 93
- 238000004088 simulation Methods 0.000 claims abstract description 81
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000010586 diagram Methods 0.000 claims description 22
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 18
- 239000000523 sample Substances 0.000 claims description 16
- 238000012937 correction Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000013519 translation Methods 0.000 claims description 2
- 230000002950 deficient Effects 0.000 description 8
- 238000012795 verification Methods 0.000 description 7
- 238000005242 forging Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 210000000664 rectum Anatomy 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Remote Sensing (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Radar, Positioning & Navigation (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to the technical field of ultrasonic detection, and particularly provides a flange ultrasonic phased array detection method and system of a gas production tree/christmas tree, comprising the steps of manufacturing a corresponding flange simulation test block according to defect characteristics of a flange of the gas production tree/christmas tree, wherein the flange simulation test block is provided with artificial defect characteristics which are in one-to-one correspondence with the defect characteristics; the artificial defect features comprise a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left of the center, the third defect hole is positioned at the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block. The scheme realizes 100% detection coverage on workpieces such as a flange plate and a valve cover, has good repeatability and coverage of detecting defects, accurate defect detection data, and can reach the detection precision of phi 2.0 multiplied by 1.0mm at an interface, and can be used for field detection and is suitable for popularization.
Description
Technical Field
The invention belongs to the technical field of ultrasonic detection, and particularly relates to a flange ultrasonic phased array detection method and system for a gas production tree/a christmas tree.
Background
The wellhead device and the production tree/christmas tree device are important devices for oil and gas exploitation, and consist of three parts, namely a casing head, a tubing head and a production tree (gas), and are used for connecting casing strings and tubing strings, sealing annular spaces between each layer of casing and the tubing, controlling the pressure of a production wellhead, regulating the flow of the oil and gas wellhead, and also being used for special operations such as acidizing fracturing, water injection, testing and the like. The christmas tree consists of valve, reducing joint, oil nozzle and pipeline fittings, and is used for controlling oil and gas production and providing conditions for well repairing operation of steel wire, cable, continuous oil pipe, etc. The structure can be divided into: split and integral. The split type and integral type wing-mounted bicycle can be divided into a single wing and a double wing.
When the gas production tree/the christmas tree is detected, the gas production tree/the christmas tree cannot be detached for detection and judgment, so that the detection is troublesome. At present, an ultrasonic detection device is mainly adopted to detect and judge the defects on the inner side of the tree or the Christmas tree, but the defect accuracy is difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flange ultrasonic phased array detection method and system for a gas production tree/a christmas tree with high defect detection efficiency and low cost. To solve the technical problems.
Therefore, the invention provides a flange ultrasonic phased array detection method of a tree/a tree, which comprises the following steps:
s1: manufacturing a corresponding flange plate simulation test block according to the defect characteristics of the flange plate of the gas production tree/the production tree, wherein the flange plate simulation test block is provided with artificial defect characteristics which are in one-to-one correspondence with the defect characteristics;
the artificial defect characteristics comprise a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left the center of the flange plate simulation test block, the third defect hole is positioned in the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block;
s2: scanning the surface of the flange plate simulation test block by transmitting ultrasonic sound beams through an ultrasonic phased array to obtain a waveform characteristic diagram of the artificial defect characteristic, and correspondingly storing the artificial defect characteristic and the waveform characteristic diagram to form a defect standard comparison table;
s3: and transmitting ultrasonic sound beams through an ultrasonic phased array to perform ultrasonic detection on the surface of the workpiece to obtain workpiece defect data, and comparing and analyzing the workpiece defect data with the defect standard comparison table to obtain the actual defect characteristics of the workpiece.
Preferably, the artificial defect features include one or more of white spots, forging cracks, stress corrosion cracks, manufacturing area defects and volume defects, inner wall corrosion, sealing surface corrosion, or tooling-made dark holes.
Preferably, the first defect hole, the second defect hole and the third defect hole are holes with the diameter of 3.2mm and the length of 20mm, and the size model of the defect groove is 4mm by 3mm by 20mm.
Preferably, the S2 specifically includes: when the ultrasonic phased array performs multiple scanning coverage on the detection area, the sound beams covered by the two scanning coverage come from different directions and are mutually perpendicular; or the included angle of the ultrasonic sound beams from one direction and covered by any two scans is not less than 10 degrees.
Preferably, the step S1 further includes: and performing acoustic velocity adjustment, angular gain correction (ACG) adjustment and time gain correction (TCG) setting on the ultrasonic phased array.
Preferably, the step S2 specifically includes: the probe of the ultrasonic phased array is attached to the surface of the simulation test block, the ultrasonic acoustic beam is enabled to pass through the artificial defect feature through axial translation scanning along the simulation test block, a reflection echo area corresponding to the ultrasonic acoustic beam when the ultrasonic acoustic beam passes through the artificial defect feature is found on a fan scanning image obtained through scanning, an ultrasonic phased array angle scanning line is adjusted to find the maximum reflection amplitude, and at the moment, the corresponding angle value on the ultrasonic phased array is the effective angle range.
Preferably, the detection of the defective groove and the third defective hole is performed at a deflection angle of +15° to-15 °.
Preferably, the detection of the flange simulation test block adopts 39-degree wedge transverse wave detection, and the angle range is set to 45-72 degrees.
The invention also provides a flange ultrasonic phased array detection system of the tree/the Christmas tree, which comprises an ultrasonic phased array with a probe, a pulse reflectometer with a plurality of independent pulse transmitting/receiving channels, a scanning display module,
The ultrasonic phase array is used for generating ultrasonic sound beams to scan the surface of the flange plate simulation test block to obtain a waveform characteristic diagram of the artificial defect characteristic, and the artificial defect characteristic and the waveform characteristic diagram are correspondingly stored to form a defect standard comparison table; ultrasonic detection is carried out on the surface of the workpiece to obtain workpiece defect data;
the artificial defect feature comprises a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left the center of the flange plate simulation test block, the third defect hole is positioned at the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block;
the data analysis module is used for comparing and analyzing the workpiece defect data with the defect standard comparison table to obtain actual defect characteristics of the workpiece;
the scanning display module is used for displaying the actual defect characteristics of the workpiece.
The invention has the beneficial effects that: the invention provides a flange ultrasonic phased array detection method and a system for a gas production tree/a christmas tree, comprising the steps of manufacturing a corresponding flange simulation test block according to the defect characteristics of the flange of the gas production tree/the christmas tree, wherein the flange simulation test block is provided with artificial defect characteristics which are in one-to-one correspondence with the defect characteristics; the artificial defect characteristics comprise a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left of the center, the third defect hole is positioned in the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block; scanning the surface of the simulation test block by transmitting ultrasonic sound beams through an ultrasonic phased array to obtain a waveform characteristic diagram of the artificial defect characteristic, and correspondingly storing the artificial defect characteristic and the waveform characteristic diagram to form a defect standard comparison table; and transmitting ultrasonic sound beams through an ultrasonic phased array to perform ultrasonic detection on the surface of the workpiece to obtain workpiece defect data, and comparing and analyzing the workpiece defect data with a defect standard comparison table to obtain actual defect characteristics of the workpiece. The simulation test block is manufactured and detected, and the simulation test block is compared with defects in actual workpiece detection, so that the size and the position of the defects detected in ultrasonic phased actual detection are accurately obtained. The scheme realizes 100% detection coverage on workpieces such as a flange plate and a valve cover, has good repeatability and coverage of detecting defects, accurate defect detection data, and can reach the detection precision of phi 2.0 multiplied by 1.0mm at an interface, and can be used for field detection and is suitable for popularization.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic flow diagram of a method and system for ultrasonic phased array detection of a flange of a tree/tree of the present invention;
FIG. 2 is a schematic diagram of a comparative test block of the flange ultrasonic phased array detection method and system of the tree/Christmas tree of the present invention;
FIG. 3 is a schematic diagram of the main parts of the tree/tree device of the invention, which is the method and system for detecting the ultrasonic phased array of the flange of the tree/tree;
FIG. 4 is a diagram of a flange ultrasonic phased array detection method and system for a tree/Christmas tree according to the present invention, wherein the diagram includes a detection part and a deflection angle;
FIG. 5 is a diagram of a process for scanning a detection surface of a body simulation test block of a flange ultrasonic phased array detection method and system for a tree/a Christmas tree of the invention;
FIG. 6 is a chart of the flaw of the simulated test block of the drift diameter of the flange ultrasonic phased array detection method and system of the tree/Christmas tree of the invention;
FIG. 7 is a schematic diagram of a detection block of a drift diameter simulation of the method and system for ultrasonic phased array detection of a flange of a tree/tree;
FIG. 8 is a diagram of a technique for scanning a detection surface of a simulated drift diameter test block of a flange ultrasonic phased array detection method and system for a tree/Christmas tree in the invention;
FIG. 9 is a diagram of a flange ultrasonic phased array inspection method and system of the present invention for a tree/tree and a bonnet inspection location and deflection angle process;
FIG. 10 is a diagram of a process for scanning a detection surface of a valve cover of a flange ultrasonic phased array detection method and a system for a tree/a Christmas tree of the invention.
Reference numerals illustrate: valve gap 1, body 2, flange 3, latus rectum 4, probe 5.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1, the invention provides a gas production tree/christmas tree ultrasonic phased array detection method, which comprises the following steps:
s1: manufacturing a corresponding flange plate simulation test block according to the defect characteristics of the flange plate of the gas production tree/the production tree, wherein the flange plate simulation test block is provided with artificial defect characteristics which are in one-to-one correspondence with the defect characteristics;
the artificial defect feature comprises a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left the center of the flange plate simulation test block, the third defect hole is positioned at the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block. The first defect hole is used for verifying detection accuracy and determining a deflection maximum angle, and is used for simulating stress propagation cracks of the bolt hole. The second defect hole is used for verifying accuracy and detecting determination of the deflection angle secondary beam, and simulates a stress propagation crack at the lower part of the defect hole. The defect groove is used for simulating the inner surface corrosion defect of the drift diameter, namely the inner diameter, and is used for verifying the detection precision and the diffusion compensation. And the third defect hole simulates a corrosion defect of the sealing surface and is used for verifying the detection precision. All defects of the flange or valve cover type can be covered entirely by these four defect features. The detection can be carried out by a longitudinal wave fan scanning method during detection.
S2: and scanning the surface of the simulation test block by transmitting ultrasonic sound beams through an ultrasonic phased array to obtain a waveform characteristic diagram of the artificial defect characteristic, and correspondingly storing the artificial defect characteristic and the waveform characteristic diagram to form a defect standard comparison table. By emitting an ultrasonic beam through an ultrasonic phased array, reflections occur as the ultrasonic beam passes through different media. When the ultrasonic beam detected by the fan scan emits or deflects to the center through the surface of the simulation test block, reflection occurs when the artificial defect hole, namely the artificial defect feature is encountered, and a detection map is obtained through detection after reflection. The following table shows:
after the detection map is analyzed, the defect height is 2.7mm, the defect aperture is 2.7mm, and the error of the two data is 0.7, so that the detection precision requirement is met. It is interpreted that the simulated test block is standard compliant. And detecting the workpiece in the same mode, and comparing and analyzing the workpiece with the data of the simulation test block to obtain the corresponding actual defect in the workpiece.
S3: and transmitting ultrasonic sound beams through an ultrasonic phased array to perform ultrasonic detection on the surface of the workpiece to obtain workpiece defect data, and comparing and analyzing the workpiece defect data with the defect standard comparison table to obtain the actual defect characteristics of the workpiece.
The ultrasonic detection technology comprises the steps of exciting each independent piezoelectric wafer (array element) of the phased array probe according to a set delay method, combining sound beams, realizing the functions of moving, deflecting, focusing and the like of the sound beams, receiving ultrasonic signals according to a certain delay method, and displaying the internal state of a detected object in an image mode.
The oil (gas) extraction tree related components are: oil pipe four-way, tee joint, valve and rotary valve, glib, flange, steel ring, christmas tree cap and back pressure valve. The materials commonly used are as follows:
list one
As shown in fig. 2 and table two, table two is a comparison test block SL-PA-01 for the oil and gas production tree, and before the detection, the ultrasonic phased array is adjusted and verified. The same detection method is adopted for adjustment and verification, the detection object is a reference block, the reference block is a standard component, and the reference block and the simulation block can be identical. The acoustic adjustment of the longitudinal wave probe adopts a reference block, the acoustic adjustment is recommended to be carried out by adopting a SL-PA-02 type test block No. 3, and the hole depth of the flat bottom hole is recommended to be 45mm and 90mm. And the CSK-IA test block plane 2-order wave and 4-order wave can also be adopted for acoustic adjustment. The acoustic adjustment of the transverse wave probe adopts a standard test block, and the acoustic adjustment is recommended to be carried out by adopting the arc surfaces of the CSK-IA test blocks R50 and R100.
Watch II
The SL-PA-01 test block is mainly used for ultrasonic sound velocity calibration during detection, longitudinal wave wedge block ACG calibration and setting of detection TCG sensitivity, and the method is carried out according to the operation instruction of an instrument. The SL-PA-02 test block is mainly used for setting the deflection angle of the body detection.
The angle gain adjustment of the longitudinal wave probe ACG adopts a reference block, and a SL-PA-02 type No. 3 test block is recommended, and the hole depth of a flat bottom hole is 45mm. The angle gain debugging of the transverse wave probe ACG recommends that the CSK-ISAR 100 arc surface is adopted for acoustic debugging. The angle gain debugging of the longitudinal wave probe ACG is carried out by adopting an SL-PA-02 type reference block, the model of the block is selected according to the thickness of the detection part of the workpiece by setting the TCG, and the reference annex A is selected for the block. The TCG debug should not be less than 4 points, and its maximum should be set at the detected maximum sound path. During the fan-sweeping, the differences of the echo amplitudes of the reflectors with the same size at the same sound path are caused by factors such as wedge attenuation differences, wafer-to-wafer differences, sound pressure reciprocating transmissivity differences and the like, and the differences are corrected by software so as to achieve the same amplitude. And carrying out gain correction on the echoes of reflectors with the same size at different sound paths to achieve the same amplitude.
The longitudinal wave sector scanning detection should adopt 0 degree wedge block, the thickness of the wedge block should be calculated and tested by test block, the judgment that the mirror wave beam of the wedge block affects the detection defect is avoided, and the first mirror wave is about 1.5 times of the plate thickness during the first wave detection. The calculation formula is as follows:
C1/H＝C2/1.5T
wherein: c1 Longitudinal wave sound velocity in wedge
C2 Longitudinal wave sound velocity in a workpiece
Thickness of T workpiece
Thickness of the H-wedge.
The angles of wedge blocks used for transverse wave fan scanning and transverse wave line scanning comprise 45 degrees, 55 degrees, 60 degrees (natural angles) and the like, and when the flange surface corrosion defects are detected, a bimorph probe is preferably used for full coverage detection. For curved workpieces, good coupling should be ensured, when the maximum gap between the workpiece and the wedge exceeds 0.5mm, the wedge conforming to the curvature of the workpiece should be customized, and the parameters of the wedge in the instrument should be changed to ensure the accuracy of the focusing rule. The detection sensitivity was set using the TCG mode. The TCG settings are not less than 80% of full screen. The TCG setting is not less than 4 points, and its maximum purported setting should be set at the maximum thickness of the workpiece inspection site. The sensitivity setting should be done on the reference block. The focus distance is set at the maximum claim of workpiece detection.
The selection of the phased array probe parameters can be referred to in Table III, and typically the number of wafers for a single shot is not less than 16.
Table three recommended probe parameters
| Maximum detection depth/mm | Probe frequency/MHZ | Wafer spacing/mm | Deflection direction aperture size/mm |
| 6～50 | 15～5 | 1.0～0.3 | 5～25 |
| 50～100 | 10～4 | 1.5～0.5 | 20～35 |
| 100～200 | 5～1 | 2.0～0.8 | 30～65 |
The analog block may also be validated prior to detection. And detecting and comparing the calibrated ultrasonic phased array with the simulation test block again. Specifically, the detection process and method to be set on the simulation test block are required to be subjected to process verification on different parts before detection. The main evaluation of the process verification is to detect the effective sound beam range, standard defect aperture equivalent size, depth, length and other dimensions of the artificial defect hole. Analog tuning can be used to compensate for the loss of acoustic energy of diffuse attenuation and absorption attenuation when inspecting workpieces with curvature. The simulation test block verification needs to record a simulation test block verification process, and a simulation test block verification record is formed and a verification conclusion is presented.
According to the preferred scheme, the simulation test block comprises a valve body simulation test block, a drift diameter simulation test block, a valve cover simulation test block, a large four-way simulation test block and a flange simulation test block according to the difference of detection workpieces, and artificial defect features are arranged in the simulation test block. The simulation test block is divided into: valve body simulation test block, latus rectum simulation test block, valve gap simulation test block, big cross simulation test block, flange simulation test block. The artificial defect apertures with different depths are arranged in the simulation test block, and are mainly used for verifying detection sensitivity of different positions and depths; the area type defects with different depth-to-width ratios are arranged in the simulation test block, and the detection capability of the corrosion condition of the inner surface of the workpiece is mainly simulated. The simulation test block is used for compensating and debugging the spreading attenuation caused by the inner curvature of the workpiece.
In the preferred scheme, when the ultrasonic phased array scans and covers the detection area for a plurality of times, the sound beams covered by the two times of scanning come from different directions and are mutually perpendicular; or the included angle of the ultrasonic sound beams from one direction and covered by any two scans is not less than 10 degrees. The phased array detection of the gas (oil) tree is divided into a class A and a class B according to the working conditions of manufacture and in service, and different technical levels correspond to different detection rates. The technical level of the workpiece part of the gas (oil) tree is not lower than the B level when being detected in the manufacturing stage, and the technical level of the workpiece part of the gas (oil) tree is not lower than the A level in the re-service stage. When the technical level is A, the phased array detection area is ensured to realize 1 or more times of total coverage. When the technical level is B, the phased array detection area is ensured to realize 2 or more full coverage of scanning at different angles. And the A-level technology level is that the signal to noise ratio is measured on a reference block, and the signal to noise ratio of phi 2 flat bottom holes in the range of sound paths to be adopted by all sound beams is ensured to be more than 9dB. And B-stage technology level, wherein the signal to noise ratio is measured on a reference block, and the signal to noise ratio of phi 2 flat bottom holes in the range of sound path to be adopted by all sound beams is ensured to be more than 12dB.
As shown in fig. 3, the detection process is set according to different positions and defect types detected by , and the detection process comprises a valve body 2, an drift diameter 4, a valve cover 1, a flange 3, a cylindrical hollow forging, a square hollow forging, bolts and the like. Corresponding simulated test blocks are then fabricated for several common and representative site structures. The following description will be made separately based on the detection methods of the different simulation test blocks.
As shown in fig. 4 and 5, the body simulation test block: the left side of the figure is a three-dimensional diagram of the simulation test block, and the upper surface and the inner diameter hole of the simulation test block are respectively provided with a defect A and a defect B. The right side of the figure is a detailed cross-sectional view of defect a and defect B. Wherein the defect A is an internal defect at different positions, the depth of the hole is close to half of the aperture or the wall thickness, namely, the depth is T/2, and T is the wall thickness. The defect B is a defect groove on the inner surface of the aperture, namely a root corrosion type defect. The probe 5 may be moved linearly along the outer surface during scanning.
As shown in fig. 6, the path simulation block: at the junction of the drift diameter and the body, and the junction of the drift diameter and the flange surface, the outer surface, namely the upper surface, is provided with a defect hole C1, the hole is correspondingly used for simulating the stress concentration crack defect of the outer surface, and the defect is the self manufacturing defect formed during processing and manufacturing of the corresponding workpiece. The function is to verify the accuracy of the detection and the diffusion compensation. The inner surface of juncture, namely the lower surface is equipped with defect hole C3, and the latus rectum inner wall is equipped with defect hole C2. Wherein defective cell C3 is used to simulate subsurface stress concentrating cracks and erosion corrosion. Defective cell C2 was used to simulate an inner surface corrosion defect and to verify the accuracy of the detection and the diffusion compensation. Wherein defective cells C1, C3 and C2 correspond to cell 1, cell 2 and cell 3, respectively, in Table IV.
Specifically, a longitudinal wave sector scanning mode is adopted for detection, as shown in fig. 7 and 8, after the probe 5 is arranged around the outer wall of the drift diameter by adopting the longitudinal wave, corresponding artificial hole reflection echoes are found by circular movement scanning, corresponding reflection echo areas are found on a sector scanning chart, the angle scanning line of an instrument is adjusted to find the maximum reflection amplitude, and at the moment, the corresponding angle value on the instrument is the effective angle range. When the drift diameter is detected specifically, the effective detection angle is determined according to the artificial reflection hole on the simulation test block. At the connection position of the drift diameter and the valve body, the artificial hole on the upper surface (namely the outer surface of the drift diameter) controls the minimum effective angle, and the artificial hole on the lower surface (namely the inner surface of the drift diameter) controls the maximum effective angle. And (3) detecting corrosion defects in the drift diameter, and adjusting the detection range to 4 times of the plate thickness during instrument adjustment, so as to improve the detection area range. It is noted that when defective cell C1 and defective cell C3 need to be detected, deflection scanning is required. All defective cells can be scanned using a minimum deflection angle of-15 deg. and a maximum deflection angle of 30 deg..
Specifically, when the main road part of the drift diameter is detected, longitudinal waves of-20 degrees to +40 degrees are adopted for full coverage detection, the focusing depth is selected at 2T, the corresponding reference block is adopted for calibrating the sound velocity of fan scanning before detection, the instrument and the equipment are subjected to TCG calibration according to the manual flat bottom hole with the reference block phi of 1.6, and a TCG detection curve is manufactured. In the detection process, the defects at the path are mainly judged by adopting the primary wave, and the defects such as end face corrosion at the flange sealing position at 40mm in the horizontal direction of the secondary wave are mainly adopted. And detecting after calibration to obtain a detection map.
As shown in fig. 9 and 10, the defects of the flange or the valve cover simulation test block are mainly concentrated near the bolt holes and on the inner walls of the through-holes, the former being stress concentration cracks or defects generated during manufacturing, and the latter being inner surface corrosion defects.
In addition, the detection of the flange sealing surface is similar to the detection of the drift diameter. If the flange sealing surface is scanned by deflection angle, the defect hole at the sealing surface, namely the junction can be detected. The detection process of the flange plate is the same as the detection process of the valve cover, and will not be described in detail here. In one specific implementation, 39 ° wedge shear wave detection may be used, with an angle range set from 45 ° to 72 °.
Among the above-mentioned each simulation test block, the drift diameter simulation test block can simulate forging valve gap inside and corrode type defect and sealing face and corrode type defect, the crack type defect of flange face bolt hole department. The valve cover simulation test block can simulate the defects of corrosion type defects in the valve cover of the forging valve and the defects of corrosion type defects of the sealing surface, and the defects of cracks at the bolt holes of the flange surface. The body can simulate the detection of the inside and the corrosion defect of the large four-way part of the casting, and the whole coverage of the detection surface is realized by the detection technology adopted at this time.
The detection process adopted in the method realizes 100% detection coverage on the workpiece, the repeatability and coverage of the detection defects are good, the defect detection data are accurate, and the detection precision at the interface can reach the precision phi 2.0 multiplied by 1.0mm. The detection process can be used for field detection.
The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention.
Claims (5)
1. The flange ultrasonic phased array detection method of the tree/the Christmas tree is characterized by comprising the following steps of:
s1: manufacturing a corresponding flange plate simulation test block according to the defect characteristics of the flange plate of the gas production tree/the production tree, wherein the flange plate simulation test block is provided with artificial defect characteristics which are in one-to-one correspondence with the defect characteristics;
the artificial defect characteristics comprise a first defect hole, a second defect hole, a third defect hole and a defect groove, wherein the first defect hole and the second defect hole are respectively positioned at the position 5mm below the center of the flange plate simulation test block and the position 5mm left the center of the flange plate simulation test block, the third defect hole is positioned in the middle of the sealing surface of the flange plate simulation test block, and the defect groove is positioned at the inner wall of the drift diameter of the flange plate simulation test block; the first defect hole is used for verifying the detection precision and determining the maximum deflection angle and simulating the stress expansion crack of the bolt hole; the second defect hole is used for verifying the accuracy and detecting the determination of the deflection angle secondary beam and is used for simulating the stress expansion crack at the lower part of the defect hole; the defect groove is used for simulating the inner surface corrosion defect of the drift diameter, namely the inner diameter, and is used for verifying the detection precision and the diffusion compensation; the third defect hole simulates a corrosion defect of the sealing surface and is used for verifying the detection precision;
the first defect hole, the second defect hole and the third defect hole are holes with the diameter of 3.2mm and the length of 20mm, and the size model of the defect groove is 4mm by 3mm by 20mm;
s2: scanning the surface of the flange plate simulation test block by transmitting ultrasonic sound beams through an ultrasonic phased array to obtain a waveform characteristic diagram of the artificial defect characteristic, and correspondingly storing the artificial defect characteristic and the waveform characteristic diagram to form a defect standard comparison table;
specifically, the probe of the ultrasonic phased array is attached to the surface of the simulation test block, the ultrasonic acoustic beam passes through the artificial defect feature along the axial translation scanning of the simulation test block, a reflection echo area corresponding to the ultrasonic acoustic beam passing through the artificial defect feature is found on a fan-scan diagram obtained by scanning, an ultrasonic phased array angle scanning line is adjusted to find the maximum reflection amplitude, and at the moment, the corresponding angle value on the ultrasonic phased array is the effective angle range;
s3: and transmitting ultrasonic sound beams through an ultrasonic phased array to perform ultrasonic detection on the surface of the workpiece to obtain workpiece defect data, and comparing and analyzing the workpiece defect data with the defect standard comparison table to obtain the actual defect characteristics of the workpiece.
2. The method for detecting the ultrasonic phased array of the flange plate of the tree/tree according to claim 1, wherein the step S2 specifically comprises: when the ultrasonic phased array performs multiple scanning coverage on the detection area, the sound beams covered by the two scanning coverage come from different directions and are mutually perpendicular; or the included angle of the ultrasonic sound beams from one direction and covered by any two scans is not less than 10 degrees.
3. The method for detecting the ultrasonic phased array of the flange plate of the tree/tree according to claim 1, wherein the step S1 further comprises: and performing acoustic velocity adjustment, angular gain correction (ACG) adjustment and time gain correction (TCG) setting on the ultrasonic phased array.
4. The ultrasonic phased array detection method for the flange plate of the tree/tree according to claim 1, wherein the detection of the defect groove and the third defect hole is performed according to a deflection angle of +15° -15 °.
5. The ultrasonic phased array detection method for the flange plate of the tree/tree according to claim 1, wherein the detection of the flange plate simulation test block adopts 39-degree wedge block transverse wave detection, and the angle range is set to be 45-72 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215166.7A CN112444559B (en) | 2020-11-04 | 2020-11-04 | Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215166.7A CN112444559B (en) | 2020-11-04 | 2020-11-04 | Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112444559A CN112444559A (en) | 2021-03-05 |
| CN112444559B true CN112444559B (en) | 2023-05-02 |
Family
ID=74735677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011215166.7A Active CN112444559B (en) | 2020-11-04 | 2020-11-04 | Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112444559B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451861B (en) * | 2022-08-15 | 2023-09-01 | 中国水利水电科学研究院 | Nondestructive testing device and method for accurately obtaining areas of standing timber edges |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442728A (en) * | 2016-10-11 | 2017-02-22 | 中航虹波风电设备有限公司 | Ultrasound wave detecting method of wind blower forging flange neck |
| CN211453473U (en) * | 2019-12-19 | 2020-09-08 | 江苏江南检测有限公司 | Simulation test piece for tube seat fillet weld ultrasonic phased array detection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9792555B2 (en) * | 2013-01-04 | 2017-10-17 | Siemens Energy, Inc. | Probabilistic modeling and sizing of embedded flaws in ultrasonic nondestructive inspections for fatigue damage prognostics and structural integrity assessment |
| CN107144638A (en) * | 2017-04-18 | 2017-09-08 | 国家电网公司 | Steel tube used in boiler inner wall defect detection method based on phased-array technique |
| CN111650281A (en) * | 2020-05-29 | 2020-09-11 | 国网河南省电力公司电力科学研究院 | Ultrasonic phased array detection method for tower welding seam |
-
2020
- 2020-11-04 CN CN202011215166.7A patent/CN112444559B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442728A (en) * | 2016-10-11 | 2017-02-22 | 中航虹波风电设备有限公司 | Ultrasound wave detecting method of wind blower forging flange neck |
| CN211453473U (en) * | 2019-12-19 | 2020-09-08 | 江苏江南检测有限公司 | Simulation test piece for tube seat fillet weld ultrasonic phased array detection |
Non-Patent Citations (1)
| Title |
|---|
| 王凯 ; 胡承军 ; 邱福寿 ; 朱祥军 ; .在役采气树超声相控阵检测应用.中国测试.2017,(第S1期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112444559A (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112444561B (en) | Gas production tree/christmas tree phased array ultrasonic detection method and system | |
| CN110007003B (en) | Partitioning method for ultrasonic detection of sound velocity non-uniform metal thick plate welding line phased array | |
| EP2401606B1 (en) | A method for testing pipeline welds using ultrasonic phased arrays | |
| AU2005241566B2 (en) | Ultrasound phased array devices and methods for use with stainless steel | |
| US20070000328A1 (en) | Ultrasonic method for the accurate measurement of crack height in dissimilar metal welds using phased array | |
| CN109946387B (en) | Small-diameter pipe phased array ultrasonic detection reference block and detection and verification method using same | |
| CN105938122A (en) | Thin-walled small-diameter tube phased array detection reference block | |
| CN110988139A (en) | Phased array ultrasonic detection method for welding buoy base plate and sampan | |
| CN215641043U (en) | Special reference block for ultrasonic detection of medium-thin wall austenitic stainless steel pipe butt weld | |
| CN109239197A (en) | The difference detection method when ultrasonic diffraction of straight tube and elbow banjo fixing butt jointing | |
| CN112444559B (en) | Method and system for detecting ultrasonic phased array of flange plate of gas production tree/christmas tree | |
| CN112255307A (en) | Ultrasonic phased array detection method for all-welded ball valve gland weld joint | |
| CN106706759B (en) | Method for evaluating defects of welding joint of P92 steel main steam pipeline of ultra-supercritical generator set | |
| CN113075293B (en) | B-type sleeve lap weld phased array ultrasonic detection method and system | |
| CN112444560B (en) | Valve drift diameter ultrasonic phased array detection method and system for gas production tree/christmas tree | |
| CN116381052B (en) | Probe parameter determination method for TOFD detection of inner surface defect of outer cylinder | |
| AU2016240373B2 (en) | Tools for calibrating an ultrasonic testing device | |
| CN110006995B (en) | Phased array ultrasonic detection method for welding seam of metal thick plate with gradient acoustic velocity non-uniformity | |
| CN108241023B (en) | Multi-beam ultrasonic detection process for body weld of armored vehicle and determination method thereof | |
| CN215641042U (en) | Phased array ultrasonic detection test block for stainless steel small-diameter pipe weld joint | |
| Toullelan et al. | Application of a 3D smart flexible phased‐array to piping inspection | |
| CN114577910A (en) | Debugging method for full-automatic phased array ultrasonic detection of circumferential weld of pipeline | |
| CN209264639U (en) | A kind of thin-walled austenite pipe ring seam phased array detection positioning calibration block | |
| Long et al. | Further development of a conformable phased array device for inspection over irregular surfaces | |
| CN215678227U (en) | Debugging contrast test block for ultrasonic detection of steam turbine retaining ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |