CN110749921A - Portable detection device for blockage of exposed filling pipeline and dredging method - Google Patents
Portable detection device for blockage of exposed filling pipeline and dredging method Download PDFInfo
- Publication number
- CN110749921A CN110749921A CN201911076223.5A CN201911076223A CN110749921A CN 110749921 A CN110749921 A CN 110749921A CN 201911076223 A CN201911076223 A CN 201911076223A CN 110749921 A CN110749921 A CN 110749921A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- pipeline
- resonance
- blockage
- frequency
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 230000005284 excitation Effects 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 17
- 238000001228 spectrum Methods 0.000 claims description 16
- 238000009774 resonance method Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
-
- 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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
-
- 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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Mathematical Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
A portable detection device for blockage of an exposed filling pipeline comprises a C-shaped split ring, wherein a plurality of threaded mounting holes are formed in the split ring, an ultrasonic receiving probe and an ultrasonic resonance contact are inserted into the mounting holes, and the ultrasonic receiving probe and the ultrasonic resonance contact are in sliding fit with the outer wall of the pipeline; the ultrasonic receiving probe and the ultrasonic resonance contact are both connected with the integrated controller; a method for dredging the blockage of an exposed filling pipeline comprises the following steps: collecting reference data; judging the blocking position; dredging blockage: for the blocking position, the ultrasonic frequency conversion vibration component and the ultrasonic vibration testing component are started to continuously scan the outer wall of the pipeline at the blocking position by utilizing the resonance frequency of the solidified corresponding filling material, the solid in the pipeline is crushed until the pipeline is dredged, and the device and the method can conveniently detect and dredge the blocking condition in the pipeline without other changes to the original pipeline system.
Description
Technical Field
The invention relates to a pipeline detection device and a dredging method, in particular to a portable detection device for blockage of an exposed filling pipeline and a dredging method, and belongs to the technical field of blockage detection and dredging of the exposed filling pipeline.
Background
Compared with the traditional mining mode, the filling mining mode has the advantages of reducing waste rock discharge, avoiding surface deformation and subsidence caused by the traditional mining mode, avoiding underground water loss and realizing low-lean-loss mining, and is an environment-friendly and long-range resource-saving coal mining mode.
However, during the operation of the filling system, the most prominent defect is that the filling efficiency cannot keep up with the resource exploitation efficiency, so that the filling exploitation efficiency is low. The reason for the low filling efficiency is that besides the filling material itself, such as paste and colloid filling materials, needs a certain time for hardening after filling, the blockage of the filling pipeline is another important factor for reducing the filling efficiency, and the blockage of the filling pipeline not only causes construction interruption and wastes time and labor for finding and dredging a blockage point, but also limits the conveying speed of the filling material to a certain extent.
Common methods for searching for blocked parts comprise a sectional pipe dismantling method and a pressure monitoring method, and have implementation possibility for short-distance filling pipelines, but also need to overcome a plurality of difficulties, and for long-distance filling material transportation pipelines, the methods are more difficult to implement and greatly increase the operation cost, so that a reliable, simple and convenient detection device and a quick and efficient dredging method are not provided for solving the problem of blockage of exposed filling pipelines such as paste, colloid and the like at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a portable detection device for the blockage of an exposed filling pipeline and a dredging method, wherein the device is convenient to carry, has intuitive information display, does not need other changes to the original pipeline system, and can conveniently detect and dredge the blockage condition in the pipeline; the dredging method is simple and easy to operate, and has no interference or damage to the system integrity of the pipeline.
In order to achieve the aim, the invention provides a portable detection device for the blockage of an exposed filling pipeline, which comprises a C-shaped split ring, wherein the width of the opening end of the split ring is not less than the outer diameter of the pipeline, and the inner diameter of the split ring is greater than the outer diameter of the pipeline; the lower end of the split ring is connected with a handle;
the split ring is provided with a plurality of threaded mounting holes, one of the mounting holes is internally provided with an ultrasonic receiving probe, the other mounting holes are internally provided with ultrasonic resonance contacts respectively, and the ultrasonic receiving probe and the ultrasonic resonance contacts are in sliding fit with the outer wall of the pipeline; the ultrasonic receiving probe and the ultrasonic resonance contact are both connected with the integrated controller;
the integrated controller comprises an ultrasonic frequency conversion vibration assembly, an ultrasonic vibration testing assembly, a controller and a display screen, wherein the ultrasonic frequency conversion vibration assembly comprises an ultrasonic resonance contact, an ultrasonic vibrator, an ultrasonic generator and an ultrasonic transducer which are sequentially connected;
the ultrasonic vibration testing assembly comprises an ultrasonic receiving probe and a measuring sensor which are connected in sequence;
the ultrasonic transducer and the measuring sensor are both connected with the controller.
Furthermore, the ultrasonic vibration testing assembly further comprises a filtering device, and the filtering device is connected with the ultrasonic receiving probe.
Furthermore, the number of the ultrasonic resonance contacts is three, the ultrasonic resonance contacts are distributed at equal intervals along the split ring, and one ultrasonic receiving probe is arranged and positioned between any two ultrasonic resonance contacts; the parts of the ultrasonic resonance contact and the ultrasonic receiving probe close to the pipeline are all hemispherical.
Furthermore, the measuring sensor is a piezoelectric vibration sensor, the displacement range of the measuring sensor is 0.001-4.000 mm, the speed range is 0.1-400.0 mm/s, and the acceleration range isThe enclosure is 0.1-400.0 m/s2。
Furthermore, the vibration frequency of the ultrasonic vibrator in the ultrasonic frequency conversion vibration assembly is 15 Hz-30 MHz.
The portable detection device has the advantages of simple structure, easy operation, high detection efficiency and good dredging effect, provides a reliable basis for accurate dredging by utilizing the resonance principle and combining the characteristics of adjustable frequency band, strong penetrability and invariable frequency of ultrasonic waves passing through different media, arranging the split ring which can be directly sleeved outside the pipeline, inserting the ultrasonic receiving probe and the ultrasonic resonance probe which are connected with the integrated controller on the split ring for respectively generating and capturing ultrasonic frequency, visually displaying a spectrum signal through the display screen of the integrated controller, and judging the blocking position through different forms of the generated spectrum signal section.
A method for dredging the blockage of an exposed filling pipeline comprises the following steps:
(1) collecting reference data: preparing solid samples of various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain and record the resonance frequency causing the solid samples to resonate;
simulating circulation environments in pipelines filled with various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain and record excitation frequency causing fluid resonance in the pipelines;
(2) judging the blocking position: setting the excitation frequency of the fluid resonance measured in the step (1) as the excitation frequency of a detection device, starting an ultrasonic frequency conversion vibration component and an ultrasonic vibration testing component, adjusting the frequency of an ultrasonic resonance contact as the excitation frequency value, slidably clamping the portable detection device on the outer wall of the pipeline from the opening of the split ring, and carrying out scanning detection on the pipeline by holding a handle to move the portable detection device;
the fluid in the pipeline generates resonance under the action of the excitation frequency of the detection device, a resonance signal is captured by the ultrasonic receiving probe, converted by the measuring sensor and transmitted to the controller, and a spectrum or an amplitude digital signal with larger and stable amplitude is displayed on the display screen in real time;
continuously moving the portable detection device, when the spectrum or amplitude digital signal on the display screen begins to obviously change, namely the amplitude is not stable any more and the amplitude is reduced, indicating that the material in the pipeline of the detected part is not fluid but solid causing blockage, continuously moving and scanning until the spectrum or amplitude digital signal with larger and stable amplitude appears on the display screen again, and judging that the part between the two sections of spectrum signals with larger and stable amplitude is a blockage position;
(3) dredging blockage: and (3) starting the ultrasonic frequency conversion vibration component and the ultrasonic vibration testing component for the blocking position determined in the step (2) by using the resonance frequency of the solidified corresponding filling material obtained in the step (1), adjusting the ultrasonic frequency of the ultrasonic resonance contact to be consistent with the resonance frequency of the solidified filling material, and continuously scanning the outer wall of the pipeline at the blocking position to loosen and break the solids in the pipeline, wherein the broken solids are continuously dispersed by the fluid in the pipeline until the pipeline is dredged.
Further, in the step (2) and the step (3), in order to reduce the resistance between the ultrasonic receiving probe and the ultrasonic resonance contact and the outer wall of the pipeline, the ultrasonic receiving probe and the ultrasonic resonance contact are lubricated before use.
Furthermore, the ultrasonic receiving probe and the ultrasonic resonance contact can be adjusted in number and position according to actual frequency requirements, and the distance between the ultrasonic receiving probe and the ultrasonic resonance contact and the pipeline can be adjusted by screwing the depth or screwing the depth in the threaded mounting hole of the split ring.
The dredging method utilizes the principle that the frequency of sound waves is unchanged when the sound waves are transmitted in different media, and detects by collecting reference data and utilizing corresponding reference frequency, so that the blockage position is judged, the ultrasonic resonance contact in the detection device is started by utilizing a resonance method to loosen and crush the solid at the blockage position, and the rapid and efficient dredging of the pipeline is realized on the premise of not damaging the original pipeline system.
Drawings
FIG. 1 is a schematic view of the structure of the detecting unit of the present invention;
FIG. 2 is a cross-sectional view of the detecting unit of the present invention;
FIG. 3 is a schematic view of an initial state of occlusion break-through;
FIG. 4 is a schematic view of an intermediate state of occlusion break-through;
fig. 5 is a schematic view of the final state of occlusion break-through.
In the figure: 1. split ring, 2, pipeline, 3, handle, 4, mounting hole, 5, ultrasonic wave receiving probe, 6, ultrasonic resonance contact, 7, integrated control ware, 8, display screen.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in figures 1 and 2, the portable detection device for the blockage of the exposed filling pipeline comprises a C-shaped open ring 1, wherein the width of the open end of the C-shaped open ring is not less than the outer diameter of a pipeline 2, and the inner diameter of the open ring 1 is greater than the outer diameter of the pipeline 2; the lower end of the split ring 1 is connected with a handle 3;
a plurality of threaded mounting holes 4 are formed in the split ring 1, an ultrasonic receiving probe 5 is mounted in one mounting hole 4, ultrasonic resonance contacts 6 are mounted in the rest mounting holes 4 respectively, and the ultrasonic receiving probe 5 and the ultrasonic resonance contacts 6 are in sliding fit with the outer wall of the pipeline 2; the ultrasonic receiving probe 5 and the ultrasonic resonance contact 6 are both connected with an integrated controller 7;
the integrated controller 7 comprises an ultrasonic frequency conversion vibration assembly, an ultrasonic vibration testing assembly, a controller and a display screen 8, wherein the ultrasonic frequency conversion vibration assembly comprises an ultrasonic resonance contact 6, an ultrasonic vibrator, an ultrasonic generator and an ultrasonic transducer which are sequentially connected;
the ultrasonic vibration testing assembly comprises an ultrasonic receiving probe 5 and a measuring sensor which are connected in sequence;
the ultrasonic transducer and the measuring sensor are both connected with the controller.
In order to filter interference waves outside a specific frequency band so as to improve the receiving precision of ultrasonic frequency, the ultrasonic vibration testing assembly further comprises a filtering device, and the filtering device is connected with the ultrasonic receiving probe 5.
Preferably, three ultrasonic resonance contacts 6 are arranged and distributed at equal intervals along the split ring 1, and one ultrasonic receiving probe 5 is arranged and located between any two ultrasonic resonance contacts 6; the ultrasonic resonance contactor 6 and the ultrasonic receiving probe 5 are both hemispherical in the part close to the pipeline 2.
In order to improve the precision of vibration test, the measuring sensor is a piezoelectric vibration sensor, the displacement range of the measurement is 0.001-4.000 mm, the speed range is 0.1-400.0 mm/s, and the acceleration range is 0.1-400.0 m/s2。
In order to ensure the width of the frequency adjusting range of the ultrasonic frequency conversion vibration component, the vibration frequency of an ultrasonic vibrator in the ultrasonic frequency conversion vibration component is 15 Hz-30 MHz.
The portable detection device has the advantages that by utilizing the resonance principle, the characteristics of adjustable frequency band, strong penetrability and invariable frequency of ultrasonic waves passing through different media are combined, the split ring which can be directly sleeved outside the pipeline is arranged, the ultrasonic receiving probe and the ultrasonic resonance probe which are connected with the integrated controller are inserted on the split ring and are respectively used for generating and capturing ultrasonic frequency, the spectrum or amplitude digital signal is visually displayed on the display screen of the integrated controller, the judgment of the blocking position is carried out through different forms of the generated spectrum signal segment, the reliable basis is provided for the accurate dredging, the portable detection device has simple structure, easy operation, high detection efficiency and good dredging effect, the original pipeline system does not need to be changed, and the convenient detection and the nondestructive dredging of the blocking condition in the pipeline are realized.
A method for dredging the blockage of an exposed filling pipeline comprises the following steps:
(1) collecting reference data: preparing solid samples of various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain and record the resonance frequency causing the solid samples to resonate;
simulating the circulation environment in the pipeline 2 filled with various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain the excitation frequency causing the fluid resonance in the pipeline 2 and recording the excitation frequency;
whether the paste or the colloid is filled, the components and the proportion of materials used in different units in different regions are different, the properties of the fluid material and the cured material are different, and the natural vibration frequency is different, so that the frequency test and the record are required.
(2) Judging the blocking position: setting the excitation frequency of the fluid resonance measured in the step (1) as the excitation frequency of a detection device, starting an ultrasonic frequency conversion vibration component and an ultrasonic vibration testing component, adjusting the frequency of an ultrasonic resonance contact 6 as the excitation frequency value, slidably clamping the portable detection device on the outer wall of the pipeline 2 from the opening of the split ring, and moving the portable detection device by using a handheld handle 3 to scan and detect the pipeline 2;
the fluid in the pipeline 2 generates resonance under the action of the excitation frequency of the detection device, a resonance signal is captured by the ultrasonic receiving probe 5, converted by the measuring sensor and transmitted to the controller, and a spectrum or an amplitude digital signal with larger and stable amplitude is displayed on the display screen 8 in real time;
when the spectrum or amplitude digital signal on the display screen 8 begins to change, namely the amplitude is not stable any more and the amplitude is reduced, the portable detection device is moved continuously, which indicates that the material in the pipeline 2 at the detected part is not fluid but solid causing blockage, and the portable detection device is moved continuously until the spectrum or amplitude digital signal with larger amplitude and stability appears on the display screen 8 again, so that the part between the two sections of spectrum signals with larger amplitude and stability can be judged as the blockage position;
(3) dredging blockage: and (3) starting the ultrasonic frequency conversion vibration component and the ultrasonic vibration testing component for the blocking position determined in the step (2) by using the resonance frequency of the solidified corresponding filling material obtained in the step (1), adjusting the ultrasonic frequency of the ultrasonic resonance contact 6 to be consistent with the resonance frequency of the solidified filling material, and continuously scanning the outer wall of the pipeline 2 at the blocking position to loosen and break the solids in the pipeline 2, wherein the broken solids are continuously dispersed by the fluid in the pipeline 2 until the pipeline 2 is dredged.
As shown in fig. 3, in the ultrasonic excitation resonance state, the plugging body is loosened and begins to be crushed, and the size of the plugging body begins to become smaller; as shown in fig. 4, under the combined action of resonance and the pressure difference of the pipeline 2 at two sides of the blocking body, the pipeline 2 is dredged; as shown in fig. 5, the crushed small-sized blocks are loosened and moved towards the outlet direction under the impulse of the fluid in the pipeline, and finally the complete dredging of the pipeline 2 is completed.
In order to obtain the best dredging effect, the ultrasonic resonance contact 6 is contacted with the outer wall of the pipeline 2 for dredging.
In order to reduce the resistance between the ultrasonic receiving probe 5 and the ultrasonic resonance contact 6 and the outer wall of the pipeline 2, in the step (2) and the step (3), the ultrasonic receiving probe 5 and the ultrasonic resonance contact 6 are lubricated before use.
The quantity and the position of the ultrasonic receiving probe 5 and the ultrasonic resonance contact 6 can be adjusted according to the actual frequency requirement, and the distance between the ultrasonic receiving probe 5 and the ultrasonic resonance contact 6 and the pipeline 2 can be adjusted by the depth of screwing or the depth of screwing in the split ring thread mounting hole 4.
The dredging method judges the blocking position by utilizing the principle that the frequency of sound waves is unchanged when the sound waves are transmitted in different media and collecting reference data, and starts the ultrasonic resonance contact in the detection device by utilizing a resonance method to loosen and crush the solid at the blocking position, thereby realizing the quick and efficient dredging of the pipeline on the premise of not damaging the original pipeline system.
Claims (8)
1. A portable detection device for the blockage of an exposed filling pipeline is characterized by comprising a C-shaped open ring (1), wherein the width of the open end of the C-shaped open ring is not less than the outer diameter of a pipeline (2), and the inner diameter of the open ring (1) is greater than the outer diameter of the pipeline (2); the lower end of the split ring (1) is connected with a handle (3);
a plurality of threaded mounting holes (4) are formed in the split ring (1), an ultrasonic receiving probe (5) is mounted in one mounting hole (4), ultrasonic resonance contacts (6) are mounted in the rest mounting holes (4), and the ultrasonic receiving probe (5) and the ultrasonic resonance contacts (6) are in sliding fit with the outer wall of the pipeline (2); the ultrasonic receiving probe (5) and the ultrasonic resonance contact (6) are both connected with an integrated controller (7);
the integrated controller (7) comprises an ultrasonic frequency conversion vibration assembly, an ultrasonic vibration testing assembly, a controller and a display screen (8), wherein the ultrasonic frequency conversion vibration assembly comprises an ultrasonic resonance contact (6), an ultrasonic vibrator, an ultrasonic generator and an ultrasonic transducer which are sequentially connected;
the ultrasonic vibration testing assembly comprises an ultrasonic receiving probe (5) and a measuring sensor which are sequentially connected;
the ultrasonic transducer and the measuring sensor are both connected with the controller.
2. The portable exposed filling pipe blockage detection device according to claim 1, wherein the ultrasonic vibration test assembly further comprises a filter device, and the filter device is connected with the ultrasonic receiving probe (5).
3. An exposed filling pipe blockage portable detection device as claimed in claim 1 or 2, wherein the number of the ultrasonic resonance contacts (6) is three, the ultrasonic resonance contacts are distributed at equal intervals along the split ring (1), and one ultrasonic receiving probe (5) is arranged between any two ultrasonic resonance contacts (6); the parts of the ultrasonic resonance contact (6) and the ultrasonic receiving probe (5) close to the pipeline (2) are all hemispherical.
4. An exposed filling pipe plugging chamber as claimed in claim 3The portable detection device is characterized in that the measuring sensor is a piezoelectric vibration sensor, the displacement range of the measuring sensor is 0.001-4.000 mm, the speed range is 0.1-400.0 mm/s, and the acceleration range is 0.1-400.0 m/s2。
5. The portable exposed filling pipe blockage detection device according to claim 3, wherein the vibration frequency of the ultrasonic vibrator in the ultrasonic variable frequency vibration assembly is 15Hz to 30 MHz.
6. The method for dredging the blockage of the exposed filling pipeline is characterized by comprising the following steps of:
(1) collecting reference data: preparing solid samples of various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain and record the resonance frequency causing the solid samples to resonate;
simulating the circulation environment in the pipeline (2) filled with various specific filling materials, starting an ultrasonic frequency conversion vibration assembly to form ultrasonic waves by using a resonance method, and simultaneously starting an ultrasonic vibration testing assembly to receive and display the ultrasonic waves to obtain and record the excitation frequency causing the fluid resonance in the pipeline (2);
(2) judging the blocking position: setting the excitation frequency of the fluid resonance measured in the step (1) as the excitation frequency of a detection device, starting an ultrasonic frequency conversion vibration component and an ultrasonic vibration testing component, adjusting the frequency of an ultrasonic resonance contact (6) as the excitation frequency value, slidably clamping the portable detection device on the outer wall of the pipeline (2) from the opening of the split ring (1), and moving the portable detection device by holding a handle (3) to scan and detect the pipeline (2);
the fluid in the pipeline (2) generates resonance under the action of the excitation frequency of the detection device, a resonance signal is captured by the ultrasonic receiving probe (5), converted by the measuring sensor and transmitted to the controller, and a spectrum or an amplitude digital signal with larger and stable amplitude is displayed on the display screen (8) in real time;
when the spectrum or amplitude digital signal on the display screen (8) begins to obviously change in a large scale, namely the amplitude is not stable any more and the amplitude is reduced, the material in the pipeline (2) of the detected part is not fluid any more but solid which causes blockage, the portable detection device is continuously moved and scanned until the spectrum or amplitude digital signal with larger amplitude appears on the display screen (8) again, and the part between the two sections of spectrum or amplitude digital signals with larger amplitude and stability can be judged as the blockage position;
(3) dredging blockage: and (3) starting the ultrasonic frequency conversion vibration component and the ultrasonic vibration testing component according to the resonance frequency of the solidified corresponding filling material obtained in the step (1) at the blockage position determined in the step (2), adjusting the ultrasonic frequency of the ultrasonic resonance contact (6) to be consistent with the resonance frequency of the solidified filling material, and continuously scanning the outer wall of the pipeline (2) at the blockage position to enable the solid in the pipeline (2) to be loose and crushed, wherein the crushed solid is continuously dispersed by the fluid in the pipeline (2) until the pipeline (2) is dredged.
7. The method for dredging the blockage of the exposed filling pipeline according to claim 6, wherein in the step (2) and the step (3), the ultrasonic receiving probe (5) and the ultrasonic resonance contact (6) are lubricated.
8. The method for dredging the blockage of the exposed filling pipeline according to the claim 6 or 7, characterized in that the quantity and the position of the ultrasonic receiving probe (5) and the ultrasonic resonance contact (6) can be adjusted according to the actual frequency requirement, and the distance between the ultrasonic receiving probe (5) and the ultrasonic resonance contact (6) and the pipeline (2) can be adjusted by screwing the depth or screwing the depth of the ultrasonic receiving probe and the ultrasonic resonance contact in the threaded mounting hole (4) of the split ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076223.5A CN110749921A (en) | 2019-11-06 | 2019-11-06 | Portable detection device for blockage of exposed filling pipeline and dredging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076223.5A CN110749921A (en) | 2019-11-06 | 2019-11-06 | Portable detection device for blockage of exposed filling pipeline and dredging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110749921A true CN110749921A (en) | 2020-02-04 |
Family
ID=69282324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911076223.5A Pending CN110749921A (en) | 2019-11-06 | 2019-11-06 | Portable detection device for blockage of exposed filling pipeline and dredging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110749921A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796828A (en) * | 2020-12-31 | 2021-05-14 | 中国矿业大学 | Method for preventing and controlling blockage of ultrahigh water material filling pipeline |
| CN113323612A (en) * | 2021-08-03 | 2021-08-31 | 中国石油集团川庆钻探工程有限公司 | Anti-overflow pipe fluid detection device, comprehensive processing system and identification method |
| CN113428656A (en) * | 2021-07-21 | 2021-09-24 | 中国科学院声学研究所东海研究站 | Anti-blocking device of powder transportation pipeline |
| CN113798279A (en) * | 2021-08-31 | 2021-12-17 | 泰兴梅兰新材料有限公司 | Method and device for removing carbon deposition in quencher of hexafluoropropylene reaction equipment |
| CN113955521A (en) * | 2021-10-29 | 2022-01-21 | 广东韶钢松山股份有限公司 | Automatic detect unloading elephant trunk and swift current material device that blocks up with mediation |
| CN114137075A (en) * | 2021-11-26 | 2022-03-04 | 安徽马钢矿业资源集团姑山矿业有限公司 | Ultrasonic detection method for pipe blockage of filling pipeline |
-
2019
- 2019-11-06 CN CN201911076223.5A patent/CN110749921A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796828A (en) * | 2020-12-31 | 2021-05-14 | 中国矿业大学 | Method for preventing and controlling blockage of ultrahigh water material filling pipeline |
| CN113428656A (en) * | 2021-07-21 | 2021-09-24 | 中国科学院声学研究所东海研究站 | Anti-blocking device of powder transportation pipeline |
| CN113323612A (en) * | 2021-08-03 | 2021-08-31 | 中国石油集团川庆钻探工程有限公司 | Anti-overflow pipe fluid detection device, comprehensive processing system and identification method |
| CN113323612B (en) * | 2021-08-03 | 2022-01-28 | 中国石油集团川庆钻探工程有限公司 | Anti-overflow pipe fluid detection device, comprehensive processing system and identification method |
| CN113798279A (en) * | 2021-08-31 | 2021-12-17 | 泰兴梅兰新材料有限公司 | Method and device for removing carbon deposition in quencher of hexafluoropropylene reaction equipment |
| CN113798279B (en) * | 2021-08-31 | 2024-07-30 | 泰兴梅兰新材料有限公司 | Method and device for removing carbon deposition in quenching device of hexafluoropropylene reaction equipment |
| CN113955521A (en) * | 2021-10-29 | 2022-01-21 | 广东韶钢松山股份有限公司 | Automatic detect unloading elephant trunk and swift current material device that blocks up with mediation |
| CN114137075A (en) * | 2021-11-26 | 2022-03-04 | 安徽马钢矿业资源集团姑山矿业有限公司 | Ultrasonic detection method for pipe blockage of filling pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110749921A (en) | Portable detection device for blockage of exposed filling pipeline and dredging method | |
| CN102944608B (en) | Device and method for ultrasonic testing of corrugated pipe duck grouting compactness | |
| EP2122320B1 (en) | Vibratory pipeline diagnostic system and method | |
| CN100456035C (en) | Blast source based dam nondestructive detecting system | |
| CN102175771B (en) | Method for detecting steel tube void of concrete filled steel tube (CFST) arch bridge by utilizing transient impact method | |
| EP0684446A2 (en) | Method and apparatus for ultrasonic pipeline inspection | |
| CN204154684U (en) | Bridge prestress pipeline compactness of grouting detector | |
| CN112557499B (en) | Experimental method for influence of joints on stress wave transmission and reflection rules based on ultrasonic waves | |
| CN104007176A (en) | Full-wave field detection system and method of complex geotechnical engineering medium | |
| CN109765303B (en) | Detection method for void degree behind lining structure | |
| CN104062069B (en) | Impact type Step Pressure production method | |
| CN108896745B (en) | Concrete pumping ultrasonic guided wave monitoring device and monitoring method | |
| AU2015101608A4 (en) | Rock acoustic wave detection transducer | |
| CN105735971A (en) | Drilling hole depth detection system based on elastic waves and detection method thereof | |
| CN102383786A (en) | Sector cement bonding and sound wave time difference logging instrument | |
| CN110850466A (en) | Filling pipeline blockage detection device and detection method | |
| CN112098512A (en) | Grouting sleeve grouting defect detection method based on acoustic local resonance scattering characteristics | |
| CN112857698B (en) | Method for detecting wall leakage based on surface acoustic waves | |
| CN110578516B (en) | Supercritical CO 2 Method for testing rock mass impact cracking damage under phase change pulse | |
| CN104155365A (en) | Detection method and device for tunnel lining concrete void | |
| CN210605000U (en) | Portable detection device for blockage of exposed filling pipeline | |
| CN206990812U (en) | A kind of detecting system of U-shaped groundwater supply line clogging failure | |
| CN112557514B (en) | Hand-held type submarine sediment sample section acoustics full-automatic measuring device | |
| CN203385698U (en) | Device for detecting emptying of tunnel lining concrete | |
| JP4577957B2 (en) | Tunnel diagnostic equipment |
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 |