CN113932958A - Pipeline stress nondestructive testing method and system based on ultrasound - Google Patents
Pipeline stress nondestructive testing method and system based on ultrasound Download PDFInfo
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- CN113932958A CN113932958A CN202111239098.2A CN202111239098A CN113932958A CN 113932958 A CN113932958 A CN 113932958A CN 202111239098 A CN202111239098 A CN 202111239098A CN 113932958 A CN113932958 A CN 113932958A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 19
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 239000000523 sample Substances 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000009662 stress testing Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
- G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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- 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
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- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a pipeline stress nondestructive testing method based on ultrasound, which comprises the following steps: preparing a pipeline to be tested, placing the pipeline on a detection table, and arranging a transmitting probe and a receiving probe of ultrasonic detection equipment at corresponding positions of the pipeline; during testing, the detection equipment sends out ultrasonic waves through the transmitting probe, and the ultrasonic waves penetrate through the pipeline and are received through the receiving probe; the ultrasonic receiving probe receives the ultrasonic waves and then amplifies the received sound waves, the amplified signals are transmitted to the data acquisition module, and the data acquisition module is arranged in the inspection equipment; when the detection device analyzes the collected signals. The stress of the pipeline is detected by the ultrasonic waves in the ultrasonic detection equipment, so that the pipeline stress detection efficiency is improved, meanwhile, the detection equipment is small in size and convenient to carry, the stress of the pipeline can be detected anytime and anywhere, and the limitation of the traditional pipeline stress detection is solved.
Description
Technical Field
The invention relates to the technical field of pipeline stress testing, in particular to an ultrasonic-based pipeline stress nondestructive testing method and system.
Background
The pipeline often takes place geometric deformation because of reasons such as ground subsides in the use, and then produces stress concentration phenomenon, and the microcosmic atom in the stress concentration region on the pipeline very easily takes place the slip motion to probably lead to the trend increase of the geometric deformation of pipeline, anti strain capacity decline and with the corrosion rate accelerate, finally probably develop into macroscopic defect in the pipeline, cause the stress concentration region on the pipeline to destroy promptly wholly. Therefore, in order to avoid the above-mentioned situation, it is necessary to perform stress detection on the pipeline in time, and the conventional pipeline stress detection has low efficiency and must be sent to a professional detection mechanism during detection.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an ultrasonic-based pipeline stress nondestructive testing method and system.
The invention provides an ultrasonic-based pipeline stress nondestructive testing method, which comprises the following steps:
s1: preparing a pipeline to be tested, placing the pipeline on a detection table, and arranging a transmitting probe and a receiving probe of ultrasonic detection equipment at corresponding positions of the pipeline;
s2: during testing, the detection equipment sends out ultrasonic waves through the transmitting probe, and the ultrasonic waves penetrate through the pipeline and are received through the receiving probe;
s3: the ultrasonic receiving probe receives the ultrasonic waves and then amplifies the received sound waves, the amplified signals are transmitted to the data acquisition module, and the data acquisition module is arranged in the inspection equipment;
s4: when the detection equipment analyzes the collected signals, the data in the data acquisition module is read, then the data is subjected to digital filtering processing, and then the processed data is analyzed through the analysis module;
s5: the acoustic time difference is obtained after analysis by an analysis module, and then calibration or measurement is carried out according to the time difference;
s6: and during calibration, a stress constant is obtained through data fitting, and during measurement, a self-tightening force value is obtained through acoustic time difference.
Preferably, the test process needs to be performed in a relatively sealed environment, and the test process needs to be performed by paying attention to temperature changes so as to avoid the temperature from influencing the test result.
The utility model provides a pipeline stress nondestructive test system based on supersound, includes the check out test set shell, one side outer wall of check out test set shell is provided with the display screen, and one side outer wall fixedly connected with winding mechanism of check out test set shell, winding mechanism includes the rolling case, and the rolling case is the cylinder structure, one side inner wall of rolling case is connected with the capstan winch through the bearing, and the gear has been cup jointed to the one end of capstan winch transmission shaft, one side inner wall fixedly connected with actuating mechanism of rolling case, and the last rack that is provided with of actuating mechanism, rack and gear intermeshing.
Preferably, the driving mechanism drives the box, and two sides of the inner wall of the bottom of the driving box are fixedly connected with sliding rods.
Preferably, springs are sleeved on the outer walls of the two sliding rods, the outer walls of the two sliding rods are connected with the same driving frame in a sliding mode, and one end of the driving frame is connected to the rack.
Preferably, the inner wall of one side of the driving box is fixedly connected with a motor, the output shaft of the motor is sleeved with a tooth driving wheel, the outer wall of the driving frame is fixedly connected with a driving rack, and the driving rack and the driving gear are meshed with each other.
Preferably, the outer wall of the bottom of the driving frame is fixedly connected with a magnet, and the inner wall of the bottom of the driving box is fixedly connected with an electromagnet.
The beneficial effects of the invention are as follows:
the stress of the pipeline is detected by ultrasonic waves in the ultrasonic detection equipment, so that the pipeline stress detection efficiency is improved, meanwhile, the detection equipment is small in size and convenient to carry, the stress of the pipeline can be detected anytime and anywhere, and the limitation of the traditional pipeline stress detection is solved; set up winding mechanism simultaneously on check out test set, conveniently carry out the rolling through winding mechanism to the cable between check out test set and the probe, avoid traditional check out test set cable to carry inconvenient problem.
Drawings
FIG. 1 is a flow chart of a nondestructive testing method for pipeline stress based on ultrasound according to the present invention;
FIG. 2 is a schematic structural diagram of an ultrasonic-based pipe stress nondestructive testing system according to the present invention;
FIG. 3 is a schematic view of an unwinding structure of a winding mechanism of an ultrasonic-based nondestructive testing system for pipeline stress according to the present invention;
FIG. 4 is a schematic structural diagram of a driving mechanism of an embodiment of a nondestructive testing system for pipeline stress based on ultrasound according to the present invention;
FIG. 5 is a schematic structural diagram of a second driving mechanism of an embodiment of a nondestructive testing system for pipeline stress based on ultrasound according to the present invention.
In the figure: 1. detecting the equipment shell; 2. a display screen; 3. a winding mechanism; 4. a rolling box; 5. a winding disc; 6. a gear; 7. a rack; 8. a drive mechanism; 9. a drive box; 10. a slide bar; 11. a spring; 12. a driving frame; 13. a drive rack; 14. a drive gear; 15. a motor; 16. an electromagnet; 17. a magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-4, an ultrasonic-based pipe stress nondestructive testing method includes the following steps:
s1: preparing a pipeline to be tested, placing the pipeline on a detection table, and arranging a transmitting probe and a receiving probe of ultrasonic detection equipment at corresponding positions of the pipeline;
s2: during testing, the detection equipment sends out ultrasonic waves through the transmitting probe, and the ultrasonic waves penetrate through the pipeline and are received through the receiving probe;
s3: the ultrasonic receiving probe receives the ultrasonic waves and then amplifies the received sound waves, the amplified signals are transmitted to the data acquisition module, and the data acquisition module is arranged in the inspection equipment;
s4: when the detection equipment analyzes the collected signals, the data in the data acquisition module is read, then the data is subjected to digital filtering processing, and then the processed data is analyzed through the analysis module;
s5: the acoustic time difference is obtained after analysis by an analysis module, and then calibration or measurement is carried out according to the time difference;
s6: and during calibration, a stress constant is obtained through data fitting, and during measurement, a self-tightening force value is obtained through acoustic time difference.
In the invention, the test is carried out in a relatively sealed environment, the temperature change needs to be noticed during the test, the test result is prevented from being influenced by the temperature, the detection equipment shell 1 is provided with a display screen 2 on one side of the outer wall of the detection equipment shell 1, a winding mechanism 3 is fixedly connected to one side of the outer wall of the detection equipment shell 1, the winding mechanism 3 comprises a winding box 4, the winding box 4 is of a cylindrical structure, a capstan 5 is connected to one side of the inner wall of the winding box 4 through a bearing, a gear 6 is sleeved at one end of a transmission shaft of the capstan 5, a driving mechanism 8 is fixedly connected to one side of the inner wall of the winding box 4, a rack 7 is arranged on the driving mechanism 8, the rack 7 and the gear 6 are mutually meshed, the driving mechanism 8 drives a box 9, slide bars 10 are fixedly connected to two sides of the inner wall of the bottom of the driving box 9, springs 11 are sleeved on the outer walls of the two slide bars 10, the same driving frame 12 is slidably connected to the outer walls of the two slide bars 10, one end of a driving frame 12 is connected to a rack 13, a motor 15 is fixedly connected to the inner wall of one side of the driving box 9, a gear driving wheel 14 is sleeved on an output shaft of the motor 15, a driving rack 13 is fixedly connected to the outer wall of the driving frame 12, and the driving rack 13 and the driving gear 14 are meshed with each other.
The working principle is as follows: when the pipeline needs to be detected through detection equipment, the cable is wound on the winding disc 5, one end of the cable is connected to the detection equipment, the other end of the cable is connected to a receiving or transmitting probe, the detection equipment transmits ultrasonic waves through the transmitting probe during detection, the ultrasonic waves transmitted are received through the receiving probe, the cable is wound on the winding disc 5, when the distance of the probe needs to be adjusted, the gear 6 is unlocked through the driving rack 7 of the driving mechanism 8 firstly, then the winding disc 5 is rotated to release the cable, when the length is enough, the driving rack 13 is driven to rotate through the driving gear 14 of the motor 15 to drive the driving rack to move, so that the rack 7 and the gear 6 are meshed with each other, the winding disc 5 is locked, and the winding disc 5 is prevented from shaking.
Example two
Referring to fig. 1-3 and 5, an ultrasonic-based pipe stress nondestructive testing method includes the steps of:
s1: preparing a pipeline to be tested, placing the pipeline on a detection table, and arranging a transmitting probe and a receiving probe of ultrasonic detection equipment at corresponding positions of the pipeline;
s2: during testing, the detection equipment sends out ultrasonic waves through the transmitting probe, and the ultrasonic waves penetrate through the pipeline and are received through the receiving probe;
s3: the ultrasonic receiving probe receives the ultrasonic waves and then amplifies the received sound waves, the amplified signals are transmitted to the data acquisition module, and the data acquisition module is arranged in the inspection equipment;
s4: when the detection equipment analyzes the collected signals, the data in the data acquisition module is read, then the data is subjected to digital filtering processing, and then the processed data is analyzed through the analysis module;
s5: the acoustic time difference is obtained after analysis by an analysis module, and then calibration or measurement is carried out according to the time difference;
s6: and during calibration, a stress constant is obtained through data fitting, and during measurement, a self-tightening force value is obtained through acoustic time difference.
In the invention, the test is carried out in a relatively sealed environment, the temperature change needs to be noticed during the test, the test result is prevented from being influenced by the temperature, the detection equipment shell 1 is provided with a display screen 2 on one side of the outer wall of the detection equipment shell 1, a winding mechanism 3 is fixedly connected to one side of the outer wall of the detection equipment shell 1, the winding mechanism 3 comprises a winding box 4, the winding box 4 is of a cylindrical structure, a capstan 5 is connected to one side of the inner wall of the winding box 4 through a bearing, a gear 6 is sleeved at one end of a transmission shaft of the capstan 5, a driving mechanism 8 is fixedly connected to one side of the inner wall of the winding box 4, a rack 7 is arranged on the driving mechanism 8, the rack 7 and the gear 6 are mutually meshed, the driving mechanism 8 drives a box 9, slide bars 10 are fixedly connected to two sides of the inner wall of the bottom of the driving box 9, springs 11 are sleeved on the outer walls of the two slide bars 10, the same driving frame 12 is slidably connected to the outer walls of the two slide bars 10, the outer wall of the bottom of the driving frame 12 is fixedly connected with a magnet 17, and the inner wall of the bottom of the driving box 9 is fixedly connected with an electromagnet 16.
The working principle is as follows: when the pipeline needs to be detected through detection equipment, the cable is wound on the winding disc 5, one end of the cable is connected to the detection equipment, the other end of the cable is connected to the receiving or transmitting probe, the detection equipment transmits ultrasonic waves through the transmitting probe during detection, the ultrasonic waves transmitted are received through the receiving probe, the cable is wound on the winding disc 5, when the distance of the probe needs to be adjusted, the gear 6 is unlocked through the driving rack 7 driven by the driving mechanism 8, then the winding disc 5 is rotated to release the cable, when the length is enough, the magnetism identical to that of the magnet 17 is generated by electrifying the electromagnet 16, the driving frame 12 is further pushed to move, the winding disc 5 is locked, and the winding disc 5 is prevented from shaking.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pipeline stress nondestructive testing method based on ultrasound is characterized by comprising the following steps:
s1: preparing a pipeline to be tested, placing the pipeline on a detection table, and arranging a transmitting probe and a receiving probe of ultrasonic detection equipment at corresponding positions of the pipeline;
s2: during testing, the detection equipment sends out ultrasonic waves through the transmitting probe, and the ultrasonic waves penetrate through the pipeline and are received through the receiving probe;
s3: the ultrasonic receiving probe receives the ultrasonic waves and then amplifies the received sound waves, the amplified signals are transmitted to the data acquisition module, and the data acquisition module is arranged in the inspection equipment;
s4: when the detection equipment analyzes the collected signals, the data in the data acquisition module is read, then the data is subjected to digital filtering processing, and then the processed data is analyzed through the analysis module;
s5: the acoustic time difference is obtained after analysis by an analysis module, and then calibration or measurement is carried out according to the time difference;
s6: and during calibration, a stress constant is obtained through data fitting, and during measurement, a self-tightening force value is obtained through acoustic time difference.
2. The ultrasonic-based pipe stress nondestructive testing method of claim 1, wherein the testing process is performed in a relatively sealed environment, and the temperature change needs to be noticed during the testing process so as to avoid the temperature from affecting the testing result.
3. The pipeline stress nondestructive testing system based on the ultrasound according to claim 1 is characterized by comprising a detection device shell (1), wherein a display screen (2) is arranged on one side of the outer wall of the detection device shell (1), a winding mechanism (3) is fixedly connected to one side of the outer wall of the detection device shell (1), the winding mechanism (3) comprises a winding box (4), the winding box (4) is of a cylindrical structure, one side of the inner wall of the winding box (4) is connected with a winch (5) through a bearing, a gear (6) is sleeved at one end of a transmission shaft of the winch (5), a driving mechanism (8) is fixedly connected to one side of the inner wall of the winding box (4), a rack (7) is arranged on the driving mechanism (8), and the rack (7) and the gear (6) are meshed with each other.
4. The nondestructive pipeline stress testing system based on the ultrasonic wave as recited in claim 3, characterized in that the driving mechanism (8) drives the box (9), and a slide bar (10) is fixedly connected to both sides of the bottom inner wall of the driving box (9).
5. The pipeline stress nondestructive testing system based on the ultrasound according to claim 4 is characterized in that springs (11) are sleeved on the outer walls of the two slide bars (10), the outer walls of the two slide bars (10) are slidably connected with the same driving frame (12), and one end of the driving frame (12) is connected to a rack (13).
6. The ultrasonic-based pipeline stress nondestructive testing system according to claim 5, characterized in that a motor (15) is fixedly connected to the inner wall of one side of the driving box (9), a toothed driving wheel (14) is sleeved on an output shaft of the motor (15), a driving rack (13) is fixedly connected to the outer wall of the driving rack (12), and the driving rack (13) and the driving wheel (14) are meshed with each other.
7. The ultrasonic-based pipeline stress nondestructive testing system according to claim 5, characterized in that a magnet (17) is fixedly connected to the outer wall of the bottom of the driving frame (12), and an electromagnet (16) is fixedly connected to the inner wall of the bottom of the driving box (9).
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210067Y (en) * | 2008-05-08 | 2009-03-18 | 申思 | Ultrasonic measurement construction for gas flow in tube with small diameter |
| CN108168746A (en) * | 2018-01-05 | 2018-06-15 | 陈文� | Pipe is in the ultrasonic inspection system and method for uniaxial stress |
| CN111208207A (en) * | 2020-02-26 | 2020-05-29 | 华东理工大学 | Bolt stress detection method |
| US20200209078A1 (en) * | 2018-12-27 | 2020-07-02 | Harbin Institute Of Technology, Shenzhen | Method for determination of internal uniaxial stress of steel member based on phase spectrum of ultrasonic transverse wave |
| CN213244322U (en) * | 2020-11-18 | 2021-05-18 | 深圳市维旺迪电子有限公司 | Modular motion bluetooth headset |
| CN213657829U (en) * | 2021-01-07 | 2021-07-09 | 李福浩 | Highway gap degree of depth measuring device |
| CN214334090U (en) * | 2021-04-06 | 2021-10-01 | 华晨之星(天津)科技有限公司 | Ultrasonic wave bolt stress measuring instrument |
-
2021
- 2021-10-25 CN CN202111239098.2A patent/CN113932958B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210067Y (en) * | 2008-05-08 | 2009-03-18 | 申思 | Ultrasonic measurement construction for gas flow in tube with small diameter |
| CN108168746A (en) * | 2018-01-05 | 2018-06-15 | 陈文� | Pipe is in the ultrasonic inspection system and method for uniaxial stress |
| US20200209078A1 (en) * | 2018-12-27 | 2020-07-02 | Harbin Institute Of Technology, Shenzhen | Method for determination of internal uniaxial stress of steel member based on phase spectrum of ultrasonic transverse wave |
| CN111208207A (en) * | 2020-02-26 | 2020-05-29 | 华东理工大学 | Bolt stress detection method |
| CN213244322U (en) * | 2020-11-18 | 2021-05-18 | 深圳市维旺迪电子有限公司 | Modular motion bluetooth headset |
| CN213657829U (en) * | 2021-01-07 | 2021-07-09 | 李福浩 | Highway gap degree of depth measuring device |
| CN214334090U (en) * | 2021-04-06 | 2021-10-01 | 华晨之星(天津)科技有限公司 | Ultrasonic wave bolt stress measuring instrument |
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