CN110455230A - A kind of high-temperature pipe perimeter on-line monitoring system and method - Google Patents
A kind of high-temperature pipe perimeter on-line monitoring system and method Download PDFInfo
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- CN110455230A CN110455230A CN201910920149.4A CN201910920149A CN110455230A CN 110455230 A CN110455230 A CN 110455230A CN 201910920149 A CN201910920149 A CN 201910920149A CN 110455230 A CN110455230 A CN 110455230A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 71
- 238000012360 testing method Methods 0.000 claims abstract description 67
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 9
- 230000003862 health status Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000006735 deficit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000003442 weekly effect Effects 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of high-temperature pipe perimeter on-line monitoring system and methods, including host computer, ultrasonic module, the first ultrasonic transducer, the second ultrasonic transducer and cooling wave guide；Host computer is connected with ultrasonic module, the output end of ultrasonic module is connected with the first ultrasonic transducer, second ultrasonic transducer is connected with the input terminal of ultrasonic module, the end of cooling wave guide is fixed in pipe under test, surface of the ultrasonic wave that first ultrasonic transducer issues through the wave guide side that cools down, cooling wave guide is connected the side of position with pipe under test, one perimeter surface of pipe under test, cooling wave guide be connected with pipe under test position the other side and cooling the wave guide other side surface enter in the second ultrasonic transducer, host computer issues pulse signal according to ultrasonic module and receives the time interval between pulse signal, the propagation time of i.e. total ultrasonic wave, in conjunction with cooling wave guide structure size and ultrasonic wave its surface propagation time, calculate the perimeter of pipe under test.The system and method can quickly, in real time, accurately monitor the perimeter of high-temperature pipe.
Description
Technical field
The present invention relates to the on-line monitoring systems and method of a kind of pipeline perimeter, and in particular to a kind of high-temperature pipe perimeter exists
Line monitoring system and method.
Background technique
All kinds of enterprises such as electric power, chemical industry, petroleum, pharmacy, aviation all use pressure pipeline to some extent, and all trades and professions make
Pressure pipeline is since the medium of conveying is different, and operating pressure, temperature are different, and the requirement to safe practice is also different.Generally
In the case of, pressure pipeline is run under internal pressure effect, and pipeline can generate a certain amount of deformation；Under temperature action, pipeline can be produced
Raw a certain amount of deformation of expanding with heat and contract with cold；Creep can also be generated in the long-term use for high-temperature pipe；For pipe material
Abnormal position may there is also additional deformation.When total deformation quantity reaches a certain level, it is impossible to meet hold for the intensity of pipeline
Carrying requirement will fail.
Thermal power generation corporations largely use high temperature track, such as boiler heating surface pipe, four big pipelines and various lead
Steam pipe etc., with the development of ultra supercritical power generation technology in China, unit capacity and steam parameter significantly get a promotion, to pressure-bearing portion
The security requirement of part especially main steam line and reheated steam hot arc pipeline etc. greatly improves.For main steam line and again
The high-temperature pipes such as hot arc pipeline are using creep tensile strength as main design parameters, that is, the failure mode considered is main
For creep impairment, creep is a kind of slow deformation process, and when creep impairment is accumulated to a certain extent, i.e. generation creep is broken
It is bad.For the safe operation for ensuring pipeline, DL/T 438 " thermal power plant alloying technology supervises regulation " defines high-temperature pipe
Measure of supervision carries out a certain number of sampling observations to pipeline using during unit maintenance, and to creep measurement based on non-destructive testing
It is provided.In early days, DL/T 441 " thermal power plant high temperature and high pressure steam pipeline creep supervision regulation " defines unit and stops
The creep measurement method of pipeline under fortune state, but measurement result is affected by various factors larger, it is difficult to obtain accurate creep number
According to, or even there is the case where creep compliance is negative value, so that creep measurement loses due meaning.Therefore, now to pipeline
Creep measurement is not strictly required.But creep is still one of dominant failure mode of high-temperature pipe, including the deformation of creep
High-temperature pipe distortion measurement be highly important for the health status monitoring of conduit running.
By the circumferential deformation quantity of on-line measurement pipeline, the health status for monitoring pipeline is significant, but by the end of current
Until, a kind of no effective method is monitored on-line to the circumferential deformation of high-temperature pipe.In view of the office of existing measurement means
It is sex-limited, need to develop a kind of system and method that can carry out on-line measurement to pipeline perimeter under hot operation state, this will
The monitoring of circumferential deformation and high-temperature pipe health status to measurement high-temperature pipe provides strong technical support.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of high-temperature pipe perimeter on-line monitoring system is provided
System and method, the system and method can quickly, in real time, accurately monitor the perimeter of high-temperature pipe.
In order to achieve the above objectives, high-temperature pipe perimeter on-line monitoring system of the present invention includes host computer, ultrasonic mould
Block, the first ultrasonic transducer, the second ultrasonic transducer and cooling wave guide.
Host computer is connected with ultrasonic module, and the output end of ultrasonic module is connected with the first ultrasonic transducer, the
Two ultrasonic transducers are connected with the input terminal of ultrasonic module, and the end for the wave guide that cools down is fixed in pipe under test, and first
Surface of the ultrasonic wave that ultrasonic transducer issues through the wave guide side that cools down, cooling wave guide are connected position with pipe under test
Side, pipe under test a perimeter surface, cooling wave guide be connected with pipe under test position the other side and cool down wave guide
The surface of the other side enters in the second ultrasonic transducer.
The cooling wave guide is slab construction.
It is connected by way of melting welding between pipe under test and cooling wave guide, and link position smoothly transits for circular arc
Structure.
The cooling wave guide includes guided wave plate and small diameter tube, and one end of guided wave plate is fixed in pipe under test, the other end
It is fixed on small diameter tube, the first ultrasonic transducer and the second ultrasonic transducer are located on small diameter tube, the first ultrasonic wave transducer
Surface of the ultrasonic wave through small diameter tube side that device issues, the surface of guided wave plate side, guided wave plate are connected position with pipe under test
Be connected with the pipe under test surface of the position other side, guided wave plate of the surface of side, a perimeter surface of pipe under test, guided wave plate is another
The surface of side and the surface of the small diameter tube other side enter in the second ultrasonic transducer.
Guided wave plate be connected by way of melting welding between pipe under test and small diameter tube, link position be circular arc it is smooth
Transition structure.
The cooling wave guide includes guided wave plate and the cooling element with cooling section, and one end of guided wave plate is fixed on to be measured
On pipeline, the other end is fixed on cooling element, table of the ultrasonic wave through cooling element side that the first ultrasonic transducer issues
Face, the surface of guided wave plate side, guided wave plate be connected with pipe under test the surface of position side, a perimeter surface of pipe under test,
Guided wave plate is connected surface, the surface of the guided wave plate other side and the table of the cooling element other side of the position other side with pipe under test
Face enters in the second ultrasonic transducer.
It is connected by way of melting welding between guided wave plate and pipe under test and cooling section, link position is that circular arc is smooth
Transition structure.
First ultrasonic transducer and the second ultrasonic transducer pass through shielded cable and are connected with ultrasonic module.
Ultrasonic module is connected by wireless or wired mode with host computer.PC control ultrasonic module transmitting and
Return pulse signal, and processing echo data can be acquired, stores, shows and analyzed in real time.
High-temperature pipe perimeter on-line monitoring method of the present invention is the following steps are included: PC control ultrasonic module produces
Raw pulse signal, and the pulse signal is sent in the first ultrasonic transducer, the first ultrasonic transducer is by the arteries and veins
Rush signal and be converted to ultrasonic signal, surface of the ultrasonic signal through the wave guide side that cools down, cooling wave guide with it is to be measured
The be connected surface of position side, a perimeter surface of pipe under test, the cooling wave guide position that is connected with pipe under test of pipeline is another
The surface of the surface of side and the wave guide other side that cools down enters in the second ultrasonic transducer, and passes through the second ultrasonic waves
Energy device is sent to ultrasonic module after being converted to electric signal, and host computer issues pulse signal and receive pulse according to ultrasonic module to be believed
Time interval between number, i.e., the propagation time of total ultrasonic wave, in conjunction with cooling wave guide structure size and ultrasonic wave at it
The propagation time on surface calculates the perimeter of pipe under test.
The invention has the following advantages:
High-temperature pipe perimeter on-line monitoring system of the present invention and method when specific operation, by high-temperature pipe and first
Ultrasonic transducer and the second ultrasonic transducer are avoided influence of the temperature to monitoring, are being monitored by cooling wave guide isolation
When, the ultrasonic signal of the first ultrasonic transducer sending is through the surface for the wave guide side that cools down, cooling wave guide and to test tube
The be connected surface of position side, a perimeter surface of pipe under test, the cooling wave guide position that is connected with pipe under test of road is another
The surface of the surface of side and the wave guide other side that cools down enters in the second ultrasonic transducer, according to ultrasonic signal propagation
Time calculates the distance of ultrasonic signal propagation, and calculates with this perimeter of pipe under test, simple, convenient, accuracy compared with
It is high.Under stoppage in transit state, deformation of creep amount can be calculated according to the circumference datum measured.It in practical applications, can be according to monitoring
To the perimeter of pipe under test the health status of high-temperature pipe is assessed, practicability is extremely strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the structural schematic diagram of embodiment two；
Fig. 3 is the structural schematic diagram of embodiment three.
Wherein, 1 it is pipe under test, 2 be cooling wave guide, 21 be guided wave plate, 22 be small diameter tube, 23 be cooling section, 24 is
Cooling element, 3 be the first ultrasonic transducer, 4 be the second ultrasonic transducer, 5 be ultrasonic module, 6 be host computer.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing, it is worth noting that, embodiment illustrates only and this
Relevant part is invented, it, can be with it will be understood by those skilled in the art that the restriction of the not structure paired systems of structure shown in figure
Including perhaps combining certain components or different component layouts than illustrating more or fewer components.
Embodiment one
With reference to Fig. 1, high-temperature pipe perimeter on-line monitoring system of the present invention includes host computer 6, ultrasonic module 5,
One ultrasonic transducer 3, the second ultrasonic transducer 4 and cooling wave guide 2；Host computer 6 is connected with ultrasonic module 5, ultrasound
The output end of module 5 is connected with the first ultrasonic transducer 3, the input terminal phase of the second ultrasonic transducer 4 and ultrasonic module 5
The end of connection, cooling wave guide 2 is fixed in pipe under test 1, and the ultrasonic wave that the first ultrasonic transducer 3 issues is led through cooling
The surface of 2 side of wave part, cooling wave guide 2 are connected the surface of position side, a weekly form of pipe under test 1 with pipe under test 1
Face, cooling wave guide 2 be connected with pipe under test 1 the position other side surface and cool down 2 other side of wave guide surface entrance
Into the second ultrasonic transducer 4.
Wherein, the cooling wave guide 2 is slab construction；Pass through the side of melting welding between pipe under test 1 and cooling wave guide 2
Formula is connected, and link position is that circular arc smoothly transits structure.
Host computer 6 issues pulse signal according to ultrasonic module 5 and receives the time interval between pulse signal, i.e., total
The propagation time of ultrasonic wave, in conjunction with cooling wave guide 2 structure size and ultrasonic wave in the propagation time on its surface, calculate to be measured
The perimeter of pipeline 1.
In practical application, can be according to the original circumference for the perimeter and high-temperature pipe for currently measuring obtained high-temperature pipe
The circumferential creep compliance that high-temperature pipe is calculated with operating parameter etc., then judges high-temperature pipe according to the circumferential creep compliance of high-temperature pipe
Health status, i.e., when the circumferential creep compliance of high-temperature pipe be more than or equal to preset value when, then alarm, avoid the hair of accident
It is raw.
Embodiment two
With reference to Fig. 2, the high-temperature pipe perimeter on-line monitoring system described in this includes host computer 6, ultrasonic module 5, the first surpasses
Acoustic wave transducer 3, the second ultrasonic transducer 4 and cooling wave guide 2；Host computer 6 is connected with ultrasonic module 5, ultrasonic module 5
Output end be connected with the first ultrasonic transducer 3, the second ultrasonic transducer 4 is connected with the input terminal of ultrasonic module 5,
The end of cooling wave guide 2 is fixed in pipe under test 1, and the ultrasonic wave that the first ultrasonic transducer 3 issues is through the wave guide 2 that cools down
The surface of side, cooling wave guide 2 be connected with pipe under test 1 surface of side of position, a perimeter surface of pipe under test 1,
Cooling wave guide 2 is connected the surface of the position other side with pipe under test 1 and the surface of cooling 2 other side of wave guide enters the
In two ultrasonic transducers 4.
Wherein, the cooling wave guide 2 includes guided wave plate 21 and small diameter tube 22, and one end of guided wave plate 21 is fixed on to test tube
On road 1, the other end is fixed on small diameter tube 22, and the first ultrasonic transducer 3 and the second ultrasonic transducer 4 are located at small diameter tube 22
On, surface, the surface of guided wave plate 21 side, guided wave of the ultrasonic wave through 22 side of small diameter tube that the first ultrasonic transducer 3 issues
Plate 21 is connected the surface of position side, a perimeter surface of pipe under test 1, guided wave plate 21 and 1 phase of pipe under test with pipe under test 1
The surface of the link position other side, the surface of 22 other side of surface and small diameter tube of 21 other side of guided wave plate enter the second ultrasound
In wave transducer 4.
It is connected by way of melting welding between guided wave plate 21 and pipe under test 1 and small diameter tube 22, link position is circle
Arc smoothly transits structure.
In the present embodiment, host computer 6 issues pulse signal according to ultrasonic module 5 and receives the time between pulse signal
Interval, i.e., the propagation time of total ultrasonic wave, in conjunction with cooling wave guide 2 structure size and ultrasonic wave in the propagation on its surface
Between, calculate the perimeter of pipe under test 1.
Embodiment three
With reference to Fig. 3, high-temperature pipe perimeter on-line monitoring system of the present invention includes host computer 6, ultrasonic module 5,
One ultrasonic transducer 3, the second ultrasonic transducer 4 and cooling wave guide 2；Host computer 6 is connected with ultrasonic module 5, ultrasound
The output end of module 5 is connected with the first ultrasonic transducer 3, the input terminal phase of the second ultrasonic transducer 4 and ultrasonic module 5
The end of connection, cooling wave guide 2 is fixed in pipe under test 1, and the ultrasonic wave that the first ultrasonic transducer 3 issues is led through cooling
The surface of 2 side of wave part, cooling wave guide 2 are connected the surface of position side, a weekly form of pipe under test 1 with pipe under test 1
Face, cooling wave guide 2 be connected with pipe under test 1 the position other side surface and cool down 2 other side of wave guide surface entrance
Into the second ultrasonic transducer 4.
Wherein, cooling wave guide 2 includes guided wave plate 21 and the cooling element 24 with cooling section 23, one end of guided wave plate 21
It is fixed in pipe under test 1, the other end is fixed on cooling element 24, and the ultrasonic wave that the first ultrasonic transducer 3 issues is through cooling down
The surface of 24 side of component, the surface of 21 side of guided wave plate, guided wave plate 21 be connected with pipe under test 1 position side surface,
One perimeter surface of pipe under test 1, guided wave plate 21 are connected surface, 21 other side of guided wave plate of the position other side with pipe under test 1
The surface of 24 other side of surface and cooling element enter in the second ultrasonic transducer 4.
It is connected by way of melting welding between guided wave plate 21 and pipe under test 1 and cooling element 24, link position is
Circular arc smoothly transits structure.
In the present embodiment, host computer 6 issues pulse signal according to ultrasonic module 5 and receives the time between pulse signal
Interval, i.e., the propagation time of total ultrasonic wave, in conjunction with cooling wave guide 2 structure size and ultrasonic wave in the propagation on its surface
Between, calculate the perimeter of pipe under test 1.
It should be noted that the first ultrasonic transducer 3 and the second ultrasonic transducer 4 pass through screen in each embodiment
Cable is covered to be connected with ultrasonic module 5；Ultrasonic module 5 is connected by wireless or wired mode with host computer 6.Host computer
6 control ultrasonic module 5 transmittings and return pulse signal, and processing echo data can be acquired, stores, shows and analyzed in real time.
Claims (9)
1. a kind of high-temperature pipe perimeter on-line monitoring system, which is characterized in that including host computer (6), ultrasonic module (5), first
Ultrasonic transducer (3), the second ultrasonic transducer (4) and cooling wave guide (2)；
Host computer (6) is connected with ultrasonic module (5), and the output end of ultrasonic module (5) is connected with the first ultrasonic transducer (3)
Connect, the second ultrasonic transducer (4) is connected with the input terminal of ultrasonic module (5), cooling wave guide (2) end be fixed on to
On test tube road (1), the ultrasonic wave of the first ultrasonic transducer (3) sending is through the surface of wave guide (2) side that cools down, cooling guided wave
Part (2) be connected with pipe under test (1) side of position, a perimeter surface of pipe under test (1), cooling wave guide (2) with it is to be measured
Pipeline (1) be connected position the other side and cool down wave guide (2) other side surface enter the second ultrasonic transducer (4)
In.
2. high-temperature pipe perimeter on-line monitoring system according to claim 1, which is characterized in that the cooling wave guide
It (2) is slab construction.
3. high-temperature pipe perimeter on-line monitoring system according to claim 2, which is characterized in that pipe under test (1) and drop
It is connected by way of melting welding between warm wave guide (2), link position is that circular arc smoothly transits structure.
4. high-temperature pipe perimeter on-line monitoring system according to claim 1, which is characterized in that the cooling wave guide
It (2) include guided wave plate (21) and small diameter tube (22), one end of guided wave plate (21) is fixed on pipe under test (1), and the other end is fixed
In on small diameter tube (22), the first ultrasonic transducer (3) and the second ultrasonic transducer (4) are located on small diameter tube (22), and first
Surface, the surface of guided wave plate (21) side, guided wave plate of the ultrasonic wave through small diameter tube (22) side that ultrasonic transducer (3) issues
(21) be connected with pipe under test (1) surface of position side, a perimeter surface of pipe under test (1), guided wave plate (21) with it is to be measured
Pipeline (1) is connected the surface on the surface of the position other side, the surface of guided wave plate (21) other side and small diameter tube (22) other side
It enters in the second ultrasonic transducer (4).
5. high-temperature pipe perimeter on-line monitoring system according to claim 4, which is characterized in that guided wave plate (21) with it is to be measured
It is connected by way of melting welding between pipeline (1) and small diameter tube (22), and link position is that circular arc smoothly transits structure.
6. high-temperature pipe perimeter on-line monitoring system according to claim 1, which is characterized in that cooling wave guide (2) packet
Guided wave plate (21) and the cooling element (24) with cooling section (23) are included, pipe under test (1) is fixed in one end of guided wave plate (21)
On, the other end is connect with cooling element (24), and the ultrasonic wave that the first ultrasonic transducer (3) issues is through cooling element (24) side
Surface, the surface of guided wave plate (21) side, guided wave plate (21) be connected the surface, to be measured of position side with pipe under test (1)
Be connected with pipe under test (1) surface of the position other side, guided wave plate (21) of one perimeter surface of pipeline (1), guided wave plate (21) is another
The surface of the surface of side and cooling element (24) other side enters in the second ultrasonic transducer (4).
7. high-temperature pipe perimeter on-line monitoring system according to claim 6, which is characterized in that guided wave plate (21) with it is to be measured
It is connected by way of melting welding between pipeline (1) and cooling element (24), and link position is that circular arc smoothly transits structure.
8. high-temperature pipe perimeter on-line monitoring system according to any one of claims 1 to 7, which is characterized in that the first surpass
Acoustic wave transducer (3) and the second ultrasonic transducer (4) are connected by shielded cable with ultrasonic module (5)；
Ultrasonic module (5) is connected by wireless or wired mode with host computer (6), and host computer (6) controls ultrasonic module
(5) transmitting and return pulse signal, and processing echo data can be acquired, stores, shows and analyzed in real time.
9. a kind of high-temperature pipe perimeter on-line monitoring method, which comprises the following steps: host computer (6) control ultrasound
Module (5) generates pulse signal, and the pulse signal is sent in the first ultrasonic transducer (3), the first ultrasonic waves
The pulse signal is converted to ultrasonic signal, table of the ultrasonic signal through wave guide (2) side that cools down by energy device (3)
Face, cooling wave guide (2) be connected with pipe under test (1) surface of position side, a perimeter surface of pipe under test (1), cool down
Wave guide (2) be connected with pipe under test (1) the position other side surface and cool down wave guide (2) other side surface enter
In second ultrasonic transducer (4), and ultrasonic module is sent to after being converted to electric signal by the second ultrasonic transducer (4)
(5), host computer (6) issues pulse signal according to ultrasonic module (5) and receives the time interval between pulse signal, i.e., total
The propagation time of ultrasonic wave, in conjunction with cooling wave guide (2) structure size and ultrasonic wave in the propagation time on its surface, calculate to
The perimeter in test tube road (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920149.4A CN110455230A (en) | 2019-09-26 | 2019-09-26 | A kind of high-temperature pipe perimeter on-line monitoring system and method |
| PCT/CN2020/108098 WO2021057287A1 (en) | 2019-09-26 | 2020-08-10 | Online high-temperature pipeline perimeter inspection system, and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920149.4A CN110455230A (en) | 2019-09-26 | 2019-09-26 | A kind of high-temperature pipe perimeter on-line monitoring system and method |
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| CN110455230A true CN110455230A (en) | 2019-11-15 |
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| CN201910920149.4A Pending CN110455230A (en) | 2019-09-26 | 2019-09-26 | A kind of high-temperature pipe perimeter on-line monitoring system and method |
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| CN (1) | CN110455230A (en) |
| WO (1) | WO2021057287A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057287A1 (en) * | 2019-09-26 | 2021-04-01 | 西安热工研究院有限公司 | Online high-temperature pipeline perimeter inspection system, and method |
| WO2022247036A1 (en) * | 2021-05-28 | 2022-12-01 | 西安热工研究院有限公司 | System and method for measuring circumference of pipeline on the basis of ultrasonic waves |
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| WO2021057287A1 (en) * | 2019-09-26 | 2021-04-01 | 西安热工研究院有限公司 | Online high-temperature pipeline perimeter inspection system, and method |
| WO2022247036A1 (en) * | 2021-05-28 | 2022-12-01 | 西安热工研究院有限公司 | System and method for measuring circumference of pipeline on the basis of ultrasonic waves |
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