CN111239251B - Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit - Google Patents
Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit Download PDFInfo
- Publication number
- CN111239251B CN111239251B CN202010205195.9A CN202010205195A CN111239251B CN 111239251 B CN111239251 B CN 111239251B CN 202010205195 A CN202010205195 A CN 202010205195A CN 111239251 B CN111239251 B CN 111239251B
- Authority
- CN
- China
- Prior art keywords
- wall
- ultrasonic
- pipe
- detection probe
- wall penetrating
- 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
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
-
- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
-
- 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)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to an ultrasonic detection method for defects of welding positions of wall penetrating pipes of a peak shaver set, and belongs to the field of nondestructive detection. The same batch of original tube manufacturing test blocks of the wall penetrating tube to be detected are utilized; designing a detection probe with radian, performing sensitivity adjustment by using a test block, and measuring an AVG curve and a DAC curve; selecting a K1 probe to detect by using secondary waves; selecting a K2 probe to detect by using primary waves; selecting a creeping wave probe to detect butt welding seams of the wall penetrating pipes, detecting welding seams at the joint of the wall penetrating pipes with defects and the sleeve, and judging whether the defects are expanded to the wall penetrating pipes or not; and analyzing to obtain a detection result. The method has the advantages that defects at welding positions of the wall penetrating pipes such as the heating surface pipe of the peak shaver set can be effectively detected, the detection result is accurate, the detection is not easy to leak, the problem of defect detection at the welding positions of the wall penetrating pipes of the reheater of the peak shaver set is solved, and the method has a guarantee effect on safe operation of the power generation boiler of the thermal power plant.
Description
Technical Field
The invention belongs to the field of nondestructive detection, and particularly relates to an ultrasonic detection method for mounting and operating defects of a sealing weld joint of a wall penetrating pipe of a reheater of a peak shaver set, which is used for detecting defects of welding positions of wall penetrating pipes such as a heating surface pipe of the peak shaver set.
Background
The power generation boiler of the thermal power plant is designed with wall penetrating pipes, the normal working temperature of the wall penetrating pipes is above 550 ℃, and in order to avoid damage to pipelines caused by vibration generated in the running process of the pipes, the wall penetrating pipes are welded and fixed by using sleeves. Because the welding position is limited, original defects such as unfused, incomplete penetration, cracks and the like can be generated during welding; for a unit with defects, the load fluctuation of the unit is large and the start-stop times are large during peak shaving, and the defects are easily generated at the positions of the welding seams of the sleeve and extend downwards along the welding junctions. If the defects cannot be found in time and processed, leakage occurs, and the unit cannot work normally. At present, besides the control in the welding process, the detection of weld defects of the wall-through pipe usually only focuses on the measurement of the running pipe wall, and the sleeve connected with the running pipe through welding is omitted. In the field, the welded part of the sleeve connected with the running pipeline is easy to generate defects, and can extend downwards along with the welded part, so that leakage and pipe explosion accidents are finally caused.
Disclosure of Invention
The invention provides an ultrasonic detection method for defects at welding positions of wall pipes of a peak shaver set, which aims to solve the problem of defect detection at welding positions of the wall pipes of reheaters of the peak shaver set.
The technical scheme adopted by the invention is that the method comprises the following steps:
(1) The same batch of original tube manufacturing test blocks of the wall penetrating tube to be detected are utilized;
(2) Designing a detection probe with radian, and improving the fitting degree of the probe and the pipeline;
(3) Selecting a proper coupling agent to ensure that ultrasonic energy is transmitted into a sample to be detected;
(4) Performing sensitivity adjustment by using a test block, and measuring an AVG curve and a DAC curve;
(5) Selecting a K1 probe to detect a welding seam at the joint of the wall pipe and the sleeve by using secondary waves and a butt welding seam;
(6) Selecting a K2 probe to detect a welding seam at the joint of the wall pipe and the sleeve by using primary waves;
(7) Selecting a creeping wave probe to detect butt welding seams of the wall penetrating pipes, detecting welding seams at the joint of the wall penetrating pipes with defects and the sleeve, and judging whether the defects are expanded to the wall penetrating pipes or not;
(8) The detection result is obtained by analyzing all detection signals.
The ultrasonic detection probe consists of a sound absorption material, an inclined wedge, a damping block, a shell, a cable and a piezoelectric wafer, wherein the outer curvature of the inclined wedge is designed to have the radius of 10mm, 15mm, 20mm, 30mm, 40mm, 60mm and 80mm according to the size of a wall penetrating pipe of a thermal power plant, and the radian size is fixed according to the width of the probe, so that the chord length is fixed;
the detection method of the K1 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall penetrating pipe wall at an angle of 45 degrees through the wedge, and reaches the fillet weld or butt weld of the wall penetrating pipe and the sleeve after two reflections. When a defect exists at the weld joint, the ultrasonic beam is reflected at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The detection method of the K2 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall of the through-wall pipe at an angle of 71.6 degrees through the wedge, and reaches the fillet weld or butt weld of the through-wall pipe and the sleeve after primary reflection. When the weld joint has a defect, the ultrasonic beam can reflect at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The detection method of the creeping wave ultrasonic detection probe is that; the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall pipe at a certain angle through the wedge, and propagates along the wall of the wall pipe. When a defect exists at a fillet weld joint between the wall penetrating pipe and the sleeve pipe and the fillet weld joint is expanded to the wall of the wall penetrating pipe or when a defect exists at a butt weld joint of the wall penetrating pipe, an ultrasonic beam can reflect at the defect to form an echo along an original path, and an ultrasonic detection probe receives a signal and transmits the signal to an oscilloscope through a cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The ultrasonic detection method for the welding line installation and operation defects of the wall penetrating pipe of the peak shaver set reheater has the advantages that the ultrasonic detection method can effectively detect the welding line defects of the wall penetrating pipe such as the heating surface pipe of the peak shaver set, the detection result is accurate, the detection is not easy to miss, the problem of defect detection of the welding line of the wall penetrating pipe of the peak shaver set reheater is solved, and the safety operation of a power generation boiler of a thermal power plant is guaranteed.
Drawings
FIG. 1a is a view of an ultrasonic probe configuration of the present invention and a probe of one gauge curvature, with a radius of 10mm;
FIG. 1b is a view of an ultrasonic probe configuration of the present invention and another gauge of a probe of 40mm radius;
FIG. 1c is a view of an ultrasonic probe configuration of the present invention and another gauge of a probe of radius 80mm;
FIG. 2a is a schematic illustration of the detection of a fillet weld by the K1 ultrasonic probe of the present invention;
FIG. 2b is a schematic illustration of the detection of a butt weld by the K1 ultrasonic inspection probe of the present invention;
FIG. 3a is a schematic illustration of the detection of a fillet weld by the K2 ultrasonic probe of the present invention;
FIG. 3b is a schematic illustration of the detection of a butt weld by the K2 ultrasonic detection probe of the present invention;
FIG. 4a is a schematic view of a creeping wave ultrasonic inspection probe of the present invention inspecting a fillet weld;
fig. 4b is a schematic view of a creeping wave ultrasonic inspection probe of the present invention inspecting a butt weld.
Detailed Description
Comprises the following steps:
(1) The same batch of original tube manufacturing test blocks of the wall penetrating tube to be detected are utilized;
(2) Designing a detection probe with radian, and improving the fitting degree of the probe and the pipeline;
(3) Selecting a proper coupling agent to ensure that ultrasonic energy is transmitted into a sample to be detected;
(4) Performing sensitivity adjustment by using a test block, and measuring an AVG curve and a DAC curve;
(5) Selecting a K1 probe to detect a welding seam at the joint of the wall pipe and the sleeve by using secondary waves and a butt welding seam;
(6) Selecting a K2 probe to detect a welding seam at the joint of the wall pipe and the sleeve by using primary waves;
(7) Selecting a creeping wave probe to detect butt welding seams of the wall penetrating pipes, detecting welding seams at the joint of the wall penetrating pipes with defects and the sleeve, and judging whether the defects are expanded to the wall penetrating pipes or not;
(8) The detection result is obtained by analyzing all detection signals.
The ultrasonic detection probe consists of a sound absorption material, an inclined wedge, a damping block, a shell, a cable and a piezoelectric wafer, wherein the outer curvature of the inclined wedge is designed into 7 specifications with the radius of 10, 15, 20, 30, 40, 60 and 80 (mm) according to the size of a wall penetrating pipe of a thermal power plant, and the radian size is designed according to the fact that the width of the probe is fixed so that the chord length is fixed;
the detection method of the K1 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall penetrating pipe wall at an angle of 45 degrees through the wedge, and reaches the fillet weld or butt weld of the wall penetrating pipe and the sleeve after two reflections. When a defect exists at the weld joint, the ultrasonic beam is reflected at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The detection method of the K2 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall of the through-wall pipe at an angle of 71.6 degrees through the wedge, and reaches the fillet weld or butt weld of the through-wall pipe and the sleeve after primary reflection. When the weld joint has a defect, the ultrasonic beam can reflect at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The detection method of the creeping wave ultrasonic detection probe is that; the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall pipe at a certain angle through the wedge, and propagates along the wall of the wall pipe. When a defect exists at a fillet weld joint between the wall penetrating pipe and the sleeve pipe and the fillet weld joint is expanded to the wall of the wall penetrating pipe or when a defect exists at a butt weld joint of the wall penetrating pipe, an ultrasonic beam can reflect at the defect to form an echo along an original path, and an ultrasonic detection probe receives a signal and transmits the signal to an oscilloscope through a cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
The present invention will be described in further detail with reference to the accompanying drawings.
When in field ultrasonic detection on the wall penetrating pipe, firstly, a standard test block is manufactured by using the same batch of original pipe of the wall penetrating pipe to be detected, and K1 and K2 angles of an ultrasonic detection probe under the material are obtained through analysis and calculation through the propagation rule of ultrasonic waves in the standard test block, echo signal amplitude values and the like, and a corresponding creeping wave probe is selected. And carrying out ultrasonic detection by using test blocks with defects in different positions and different sizes, drawing an AVG curve and a DAC curve, and taking the AVG curve and the DAC curve as reference standards for actual detection signal analysis. See fig. 1 a-1 c;
the ultrasonic detection probe consists of a sound absorption material, an inclined wedge, a damping block, a shell, a cable and a piezoelectric wafer, wherein the outer curvature of the inclined wedge is designed into 7 specifications with the radius of 10, 15, 20, 30, 40, 60 and 80 (mm) according to the size of a wall penetrating pipe of a thermal power plant, and the radian size is designed according to the fact that the chord length is fixed due to the fact that the width of the probe is fixed;
according to the size of the on-site to-be-detected through-wall pipe, ultrasonic detection probes with different bending degrees are selected, corrosion, dirt and the like within 30mm of the detection position of the through-wall pipe are required to be removed before measurement, so that the detected position is as smooth as possible, and the minimum requirement of ultrasonic detection on surface roughness is met. After the water-soluble molecular material couplant is smeared on the detection part, the ultrasonic detection probe is placed on the couplant, so that the ultrasonic detection probe is tightly attached to the pipe wall to be detected.
Firstly, selecting a K1 ultrasonic detection probe with radian, detecting a welding line at the joint of the wall pipe and the sleeve by using a secondary wave signal, if the butt welding line exists in the wall pipe section, detecting the butt welding line again, and recording the amplitude change of the measurement signal. K1 ultrasonic detection probe detection is shown in figures 2 a-2 b;
the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall penetrating pipe wall at an angle of 45 degrees through the wedge, and reaches the fillet weld or butt weld of the wall penetrating pipe and the sleeve after two reflections. When a defect exists at the weld joint, the ultrasonic beam is reflected at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
And selecting a K2 ultrasonic detection probe with radian, detecting a welding line at the joint of the wall pipe and the sleeve by using a primary wave signal, if the butt welding line exists in the wall pipe section, detecting the butt welding line again, and recording the amplitude change of the measurement signal. K2 ultrasonic detection probe detection is shown in figures 3 a-3 b;
the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall of the through-wall pipe at an angle of 71.6 degrees through the wedge, and reaches the fillet weld or butt weld of the through-wall pipe and the sleeve after primary reflection. When the weld joint has a defect, the ultrasonic beam can reflect at the defect to form an echo along the original path, and the ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
And if the welding line at the joint of the wall pipe and the sleeve is defective, selecting a creeping wave detection probe to detect again, and recording the amplitude change of the measurement signal. The creeping wave ultrasonic detecting probe is shown in figures 4 a-4 b;
the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall pipe at a certain angle through the wedge, and propagates along the wall of the wall pipe. When a defect exists at a fillet weld joint between the wall penetrating pipe and the sleeve pipe and the fillet weld joint is expanded to the wall of the wall penetrating pipe or when a defect exists at a butt weld joint of the wall penetrating pipe, an ultrasonic beam can reflect at the defect to form an echo along an original path, and an ultrasonic detection probe receives a signal and transmits the signal to an oscilloscope through a cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld.
And finally, calculating and comparing the recorded detection signals with the AVG curve and the DAC curve to obtain a detection result.
Claims (2)
1. An ultrasonic detection method for defects at welding positions of wall penetrating pipes of a peak shaver set is characterized by comprising the following steps:
(1) The same batch of original tube manufacturing test blocks of the wall penetrating tube to be detected are utilized;
(2) Designing an ultrasonic detection probe with radian, wherein the ultrasonic detection probe comprises a K1 ultrasonic detection probe, a K2 ultrasonic detection probe and a creeping wave ultrasonic detection probe, and the bonding degree of the ultrasonic detection probe and a pipeline is improved;
(3) Selecting a proper coupling agent to ensure that ultrasonic energy is transmitted into a sample to be detected;
(4) Performing sensitivity adjustment by using a test block, and measuring an AVG curve and a DAC curve;
(5) Selecting a K1 ultrasonic detection probe to detect a welding seam and a butt welding seam at the joint of the wall pipe and the sleeve by using secondary waves;
the detection method of the K1 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall of the through-wall pipe through the inclined wedge at an angle of 45 degrees, and reaches the fillet weld or butt weld of the through-wall pipe and the sleeve after two reflections; when a defect exists at the weld joint, the ultrasonic beam is reflected at the defect to form an echo along the original path, and the K1 ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld;
(6) Selecting a K2 ultrasonic detection probe to detect a welding seam at the joint of the wall pipe and the sleeve by using primary waves;
the detection method of the K2 ultrasonic detection probe comprises the following steps: the ultrasonic wave beam is generated by the piezoelectric wafer, is injected into the wall of the through-wall pipe through the inclined wedge at an angle of 71.6 degrees, and reaches the fillet weld or butt weld of the through-wall pipe and the sleeve after primary reflection; when the weld joint has a defect, the ultrasonic beam is reflected at the defect to form an echo along the original path, and the K2 ultrasonic detection probe receives signals and transmits the signals to the oscilloscope through the cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld;
(7) Selecting a creeping wave ultrasonic detection probe to detect butt welding seams of the wall penetrating pipes, detecting welding seams at the joint of the wall penetrating pipes with defects and the sleeve, and judging whether the defects extend to the wall penetrating pipes or not;
the detection method of the creeping wave ultrasonic detection probe is as follows; ultrasonic wave beams are generated by the piezoelectric wafer, are emitted into the wall penetrating pipe through the wedge at a certain angle and spread along the pipe wall of the wall penetrating pipe; when a defect exists at a fillet weld joint between the wall penetrating pipe and the sleeve pipe and the fillet weld joint is expanded to the wall of the wall penetrating pipe or when a defect exists at a butt weld joint of the wall penetrating pipe, an ultrasonic beam can be reflected at the defect to form an echo along an original path, and a creeping wave ultrasonic detection probe receives a signal and transmits the signal to an oscilloscope through a cable; when there is no defect, the ultrasonic beam will propagate along the casing wall through the weld;
(8) The detection result is obtained by analyzing all detection signals.
2. The ultrasonic detection method for defects at welding positions of wall pipes of peak shaver sets according to claim 1, wherein the method comprises the following steps: the ultrasonic detection probe in the step (2) consists of a sound absorption material, an inclined wedge, a damping block, a shell, a cable and a piezoelectric wafer, wherein the outer curvature of the inclined wedge is designed to have the radius of 10mm, 15mm, 20mm, 30mm, 40mm, 60mm and 80mm according to the size of a wall penetrating pipe of a thermal power plant, and the radian size is designed according to the fact that the width of the ultrasonic detection probe is fixed, so that the chord length is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205195.9A CN111239251B (en) | 2020-03-23 | 2020-03-23 | Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205195.9A CN111239251B (en) | 2020-03-23 | 2020-03-23 | Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111239251A CN111239251A (en) | 2020-06-05 |
| CN111239251B true CN111239251B (en) | 2023-04-28 |
Family
ID=70869098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010205195.9A Active CN111239251B (en) | 2020-03-23 | 2020-03-23 | Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111239251B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458406B (en) * | 2019-12-31 | 2021-06-29 | 南京晨光集团有限责任公司 | Ultrasonic detection method for austenitic stainless steel fillet weld |
| CN112305073B (en) * | 2020-10-26 | 2024-01-19 | 西安热工研究院有限公司 | Ultrasonic detection method for weld toe cracks of sliding pair of boiler heating surface pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011043407A (en) * | 2009-08-21 | 2011-03-03 | Mitsubishi Heavy Ind Ltd | Probe for ultrasonic inspection, and ultrasonic inspection device |
| CN102706962A (en) * | 2012-07-05 | 2012-10-03 | 北京中唐电工程咨询有限公司 | Ultrasonic flaw detection device and flaw detection method for thick-wall headers and pipelines |
| CN205049521U (en) * | 2015-10-22 | 2016-02-24 | 湖南汇丰工程检测有限公司 | Boiler wall pipe |
| CN108490078A (en) * | 2018-02-28 | 2018-09-04 | 汕头市超声检测科技有限公司 | The single side bilateral Multi-angle ultrasound detection method of foreign structure pattern pipeline-weld |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1024726C2 (en) * | 2003-11-06 | 2005-05-09 | Roentgen Tech Dienst Bv | Method for checking a weld between two metal pipelines. |
-
2020
- 2020-03-23 CN CN202010205195.9A patent/CN111239251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011043407A (en) * | 2009-08-21 | 2011-03-03 | Mitsubishi Heavy Ind Ltd | Probe for ultrasonic inspection, and ultrasonic inspection device |
| CN102706962A (en) * | 2012-07-05 | 2012-10-03 | 北京中唐电工程咨询有限公司 | Ultrasonic flaw detection device and flaw detection method for thick-wall headers and pipelines |
| CN205049521U (en) * | 2015-10-22 | 2016-02-24 | 湖南汇丰工程检测有限公司 | Boiler wall pipe |
| CN108490078A (en) * | 2018-02-28 | 2018-09-04 | 汕头市超声检测科技有限公司 | The single side bilateral Multi-angle ultrasound detection method of foreign structure pattern pipeline-weld |
Non-Patent Citations (2)
| Title |
|---|
| 利用超声爬波技术检测锅炉穿墙管母管裂纹;邓宏平 等;《无损探伤》;20131031;第37卷(第5期);39-41 * |
| 超超临界机组锅炉异种钢小径管镍基焊接接头超声波检测;邓宏平 等;《无损检测》;20121231;第34卷(第1期);34-36 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111239251A (en) | 2020-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6799466B2 (en) | Guided acoustic wave inspection system | |
| CN111239251B (en) | Ultrasonic detection method for defects of welding positions of wall penetrating pipes of peak shaving unit | |
| US6332361B1 (en) | Method for evaluating bonding properties of a metallic pipe | |
| CN207850998U (en) | A kind of emplacement type Nozzle weld ultrasonic phased array imaging detection simulating test pieces | |
| US7762137B2 (en) | Method for checking a weld between two metal pipelines | |
| CN116858933A (en) | Method for ultrasonically detecting weld quality of stainless steel thin-wall small-diameter pipe by phased array | |
| Cawley | Guided waves in long range nondestructive testing and structural health monitoring: Principles, history of applications and prospects | |
| CN215339669U (en) | Ultrasonic contrast test block for detecting dissimilar steel fillet weld of temperature sleeve with typical structure | |
| WO2023274089A1 (en) | Curved-surface sonolucent wedge design method for circumferential ultrasonic detection of small-diameter tube | |
| CN210268563U (en) | High temperature pipeline circumference on-line monitoring system | |
| CN209926027U (en) | Oil gas pipeline B type sleeve fillet weld contrast test block for ultrasonic detection | |
| JP2001183352A (en) | Inspection method for jointed quality of metal pipe | |
| JP5127177B2 (en) | Inspection method for small-diameter piping | |
| Zhou et al. | Research on Phased Array Ultrasonic Testing for the Girth Weld of 4mm~ 10mm Austenitic Stainless Steel Pipeline | |
| JP2002286444A (en) | Crack detecting method for high-temperature pipe | |
| US3929005A (en) | Ultrasonic inspection recess in heat exchanger and nuclear steam generator tubesheets | |
| CN112305073B (en) | Ultrasonic detection method for weld toe cracks of sliding pair of boiler heating surface pipe | |
| CN114839277B (en) | Nuclear power plant lining adhesive bonding state online detection and evaluation method | |
| Si et al. | CIVA Simulation and Experiment Verification for Thin-Walled Small-Diameter Pipes by Using Phased Array Ultrasonic Testing | |
| Reber et al. | Ultrasonic in-line inspection tools to inspect older pipelines for cracks in girth and long-seam welds | |
| WO2004077045A1 (en) | Ultrasonic examination method and ultrasonic examination jig | |
| JPH0478944B2 (en) | ||
| JP3581015B2 (en) | Crack evaluation device and probe for welded part to be inspected | |
| Wang et al. | Assessment of vintage girth welds and challenges to ILI tools. | |
| CN116256430A (en) | Stainless steel thin-wall steel pipe weld quality detection method |
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 |