CN111380954A - Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor - Google Patents
Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor Download PDFInfo
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- CN111380954A CN111380954A CN201811619656.6A CN201811619656A CN111380954A CN 111380954 A CN111380954 A CN 111380954A CN 201811619656 A CN201811619656 A CN 201811619656A CN 111380954 A CN111380954 A CN 111380954A
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- wire rope
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- 238000007689 inspection Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000002285 radioactive effect Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 27
- 238000005516 engineering process Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- 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
-
- 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
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2695—Bottles, containers
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The patent relates to nondestructive detection of a nuclear reactor pressure vessel of a nuclear power station, in particular to an ultrasonic automatic inspection device for the nuclear reactor pressure vessel of a high-temperature gas-cooled reactor. The prior art is not accurate and intelligent enough and has larger radiation to human body. The device comprises: displacement detection subassembly, hoist subassembly vice, wire rope A, wire rope B, circumference guide rail. The displacement detection assembly and the hoisting assembly pair are fixedly arranged on the circumferential scanning trolley; the winch assembly pair is connected with the outer wall scanner through a steel wire rope A and a steel wire rope B; the outer wall scanner can be tightly attached to the outer surface of the pressure container; the circular scanning trolley is integrally arranged on the circular guide rail and moves along the circular guide rail; the circumferential guide rail is fixedly arranged on the top of the concrete. Therefore, the invention develops an automatic inspection device which can improve the accuracy and reliability of the detection data and reduce the irradiation of radioactive rays to the human body.
Description
Technical Field
The patent relates to nondestructive detection of a nuclear reactor pressure vessel of a nuclear power station, in particular to an ultrasonic automatic inspection device for the nuclear reactor pressure vessel of a high-temperature gas-cooled reactor.
Background
With the support of the program of '863', the research and development of high-temperature gas-cooled experimental reactors have been carried out in China since the mid-eighties of the last century. The pressure vessel of the nuclear power plant is one of the core components of the pressure boundary of the nuclear reactor coolant and consists of a cylinder assembly, a top cover assembly, a bottom end enclosure and a flange sealing structure.
The high-temperature gas-cooled reactor cylinder assembly is formed by welding and combining multiple sections, ultrasonic detection must be carried out on a welding seam at the position according to relevant detection standard requirements, and ultrasonic automatic detection equipment for a high-temperature gas-cooled reactor pressure vessel is specially developed in order to improve the accuracy and reliability of detection data and reduce the irradiation of radioactive rays on a human body.
Disclosure of Invention
1. The purpose is as follows:
in order to perform ultrasonic automatic detection on the high temperature gas cooled reactor nuclear reactor pressure vessel cylinder section, a special detection device must be developed according to the size of the pressure vessel, the characteristics of the device and the surrounding working environment to realize the in-service and in-service detection of the pressure vessel.
2. The technical scheme is as follows:
an ultrasonic automatic inspection device for a pressure vessel of a high temperature gas cooled reactor nuclear reactor, comprising: displacement detection subassembly, hoist subassembly vice, wire rope A, wire rope B, circumference guide rail. The displacement detection assembly and the winch assembly pair are fixedly arranged on the circular motion trolley; the winch assembly pair is connected with the outer wall scanner through a steel wire rope A and a steel wire rope B; the outer wall scanner is tightly attached to the outer surface of the pressure container; the circular motion trolley is integrally arranged on the circular guide rail, and can only rotate along the circular guide rail under the simultaneous action of the rolling support assembly, the mechanical limit assembly and the elastic limit assembly; the circumferential guide rail is fixedly arranged on the top of the concrete;
the outer wall scanning device comprises a rear jacking kinematic pair, a front jacking kinematic pair, an electromagnetic chuck, a circumferential driving assembly A, an axial scanning kinematic shaft, a circumferential scanning driving assembly B and a circumferential scanning trolley; the outer wall scanner is integrally fan-shaped, and an axial scanning motion shaft extends out of the middle of the outer wall scanner; the electromagnetic chucks are distributed at the left end and the right end of the outer wall scanner sector plate, and the front jacking kinematic pair is fixedly arranged on the outer wall scanner and positioned behind the electromagnetic chucks and jacks the electromagnetic chucks; the rear jacking kinematic pair is positioned at the outermost side of the outer wall scanner and is tightly attached to the front jacking kinematic pair; the circumference driving component A is fixedly arranged on the arc-shaped part of the outer wall scanner; the circumference scanning driving component B is fixedly connected with the circumference scanning trolley. The circumference scanning trolley is arranged below the guide rail B; the circumferential scanning trolley is in threaded connection with the circumferential scanning driving component B and the axial scanning motion shaft.
The circular motion trolley comprises: the device comprises a mechanical limiting assembly, a rolling supporting assembly, an elastic limiting assembly, a position sensing assembly, a coding assembly and a circumference driving motor; the whole circular motion trolley is fan-shaped; the mechanical limiting component and the rolling supporting component are fixedly arranged on the lower surface of the panel of the circular motion trolley and are symmetrically distributed on the left side and the right side; the coding component is arranged at the outer end of the circumferential scanning trolley; the circumference driving motor is arranged in the center of the lower surface of the circumference scanning trolley panel; the elastic limiting component and the position sensing component are arranged in the center of the lower surface of the panel of the circumferential scanning trolley; the hoisting assembly pair is arranged on the upper surface of the circular motion trolley.
The outer wall scanner is connected with the winch assembly pair through a steel wire rope A and a steel wire rope B, the other end connector of the steel wire rope is connected to the guide rail A, and the circular motion trolley can drive the whole outer wall scanner to rotate along the outer surface of the pressure container in a whole circle when moving along the circular guide rail.
The guide rail B slides along the guide rail A.
Mechanical spacing subassembly, elasticity spacing subassembly all include: a guide rail C, a slide block and a quick pin; the slider is connected with guide rail C sliding, and the part that slider and guide rail C are connected has been beaten the through-hole, and the fast round pin realizes spacingly through the through-hole on the slider.
The direction of the steel wire rope A is the same as that of the steel wire rope B.
3. The effect is as follows:
3.1 high-efficiency hoisting and lifting technology: the hoisting component pair 5 respectively controls the steel wire rope A7 and the steel wire rope B8 to ascend and descend simultaneously, the steel wire rope A7 and the steel wire rope B8 are respectively fixed with the outer wall scanner 2, the displacement detection components 6 are respectively installed on two sides right above the outer wall scanner 2, when the outer wall scanner 2 moves to a welding seam position, the displacement detection components 6 respectively read the left and right opposite circumferential guide rail positions of the outer wall scanner 2, if the left and right are unbalanced, one of the steel wire rope A7 and the steel wire rope B8 can be independently adjusted to ascend and descend by the hoisting component pair 5, the hoisting component pair 5 stops working after being balanced, and the outer wall scanner 2 is fixed for inspection. The hoisting assembly pair 5 and the displacement detection assembly 6 are selected to work simultaneously, so that a long-distance, efficient, portable and accurate workplace can be realized.
3.2 quick installation technique: the circular motion trolley 4 is transported along the circular guide rail by adopting friction transmission, the mechanical limiting component 10 and the elastic limiting component 12 are switched to be in a non-limiting state, the circular motion trolley 4 is leveled and then is hung above the circular guide rail, and when the rolling supporting component 11 is tangent to the circular guide rail, the mechanical limiting component 10 and the elastic limiting component 12 are switched to be in a limiting state, so that the rapid installation can be realized. The mechanical limiting assembly 10 and the elastic limiting assembly 12 are combined by a guide rail C25, a slide block 26 and a quick pin 27 to realize quick switching.
3.3 self-positioning technology of the circular motion trolley 4: when the circular motion dolly 4 is installed to the circular guide rail top, utilize position sensing subassembly to go to respond to the pre-buried response components and parts above the circular guide rail, simultaneously, the coding subassembly 14 can work with the displacement sensing subassembly simultaneously, can confirm the position each other, finally ensures equipment motion to the accurate position.
3.4 outer wall scanner 2 multilayer circular motion and self-absorption technology: the outer wall scanner 2 comprises a guide rail A21, a guide rail B22, a circumferential scanning trolley 4, an electromagnetic chuck 18 assembly and other parts, when the outer wall scanner 2 moves to a designated position, the front jacking kinematic pair 17 is switched to an extending state, the electromagnetic chuck 18 assembly is switched to a working state, and at the moment, the outer wall scanner 2 can normally work under the condition that the rear jacking kinematic pair 16 cannot work due to the adsorption force of the electromagnetic chuck 18 assembly. When the electromagnetic chuck 18 is in an adsorption state, the guide rail A21 does not move relative to the chuck, the guide rail B22 can move circularly along two directions of the guide rail A21, and the circular scanning trolley 23 can move along the guide rail B22 in a full stroke under the driving of the circular scanning driving component B24; in the multilayer circular motion technology, the guide rail B22 makes circular motion along the guide rail A21 under the action of the driving circular driving component A19, so that the inspection range can be enlarged and the scanning efficiency can be improved on the premise of one-time clamping.
Drawings
FIG. 1 ultrasonic automatic inspection equipment for high-temperature gas cooled reactor pressure vessel
FIG. 2 circular motion trolley
FIG. 3 top view of the outer wall scanner
FIG. 4 front view of the outer wall scanner
FIG. 5 elastic limit component
FIG. 6 mechanical stop assembly
In the figure: 1. concrete; 2. an outer wall scanner; 3. a pressure vessel; 4. a circular motion trolley; 5. a hoisting assembly pair; 6. a displacement detection assembly; 7. a steel wire rope A; 8. a steel wire rope B; 9. a circumferential guide rail; 10. A mechanical spacing assembly; 11. a rolling support assembly; 12. an elastic limit component; 13. a position sensing assembly; 14. an encoding component; 15. a circumferential drive motor; 16. the kinematic pair is tightly pushed; 17. the kinematic pair is tightly pushed forwards; 18. an electromagnetic chuck; 19. a circumferential drive assembly A; 20. axially scanning the motion axis; 21. a guide rail A; 22. a guide rail B; 23. a circle scanning trolley; 24. a circumferential scanning drive assembly B; 25. a guide rail C; 26. a slider; 27 quick pins.
Detailed Description
The following detailed description of the patent refers to the accompanying drawings and specific embodiments:
a concrete platform is arranged beside a nuclear reactor pressure vessel of a high-temperature gas cooled reactor nuclear power station, the pressure vessel has the structural characteristics of large diameter and long radial dimension, a condenser pipe is arranged on the periphery of the pressure vessel and fixed on the inner wall of the concrete platform, the ultrasonic automatic inspection mode of the pressure vessel can only be used for carrying out inspection from the outer surface of the pressure vessel, and the structures of the pressure vessel and the concrete platform are shown in figure 1. In the checking process, the scanning equipment is arranged above a concrete platform at the periphery of a pressure vessel 3, firstly, a circumferential guide rail is arranged on the upper surface of the concrete platform, as shown in figure 2, a circular motion trolley 4 is arranged above the circumferential guide rail and fixed, then, an outer wall scanning device 2 is hung to the butt joint range of a steel wire rope A7 and a steel wire rope B8, the butt joint of the steel wire ropes is completed, the outer wall scanning device 2 is controlled to lift by utilizing the forward and reverse rotation of a hoisting assembly pair 5, meanwhile, the circular motion trolley 4 can drive the whole set of equipment to move along the circumferential guide rail in a whole circle, and the hoisting assembly pair 5 can drive the outer wall scanning device 2 to lift integrally. After the outer wall scanner 2 is conveyed to an inspection position by using the circular motion trolley 4 and the winch component pair 5, the front jacking kinematic pair 17 and the rear jacking kinematic pair 16 work simultaneously, the electromagnetic chuck 18 is conveyed to the outer surface of the pressure vessel 3, and after the electromagnetic chuck 18 works, the positioning and fixing of the outer wall scanner 2 are completed.
As shown in fig. 3 and 4, when the outer wall scanner 2 works, the guide rail a21 has no motion relative to the electromagnetic chuck 18, the guide rail B22 moves circumferentially along two directions of the guide rail a21, the circumferential scanning trolley 23 moves circumferentially along the guide rail B22, the guide rail a21 and the guide rail B22 are coaxial with the pressure vessel 3, the axial scanning motion shaft 20 is fixed on the circumferential scanning trolley 23, the circumferential scanning trolley 23 can drive the axial scanning motion shaft 20 to move circumferentially along the pressure vessel 3, the axial scanning shaft itself moves axially along the pressure vessel 3, and the two motion shafts can complete rectangular track scanning on the outer wall of the pressure vessel 3.
The invention has the following effects:
1) the high-efficiency hoisting lifting technology comprises the following steps: the function is completed by a hoisting assembly pair 5 and a displacement detection assembly 6;
2) the quick installation technology comprises the following steps: as shown in fig. 5 and 6, this function is performed by a plurality of elastic limiting assemblies 12 and mechanical limiting assemblies 10;
3) self-positioning technology of the circular motion trolley 4: this function is realized by the encoding component 14 and the position sensing component 13;
4) the outer wall scanner 2 adopts multilayer circular motion and self-adsorption technology: the function is realized by a guide rail A21, a guide rail B22, a circumference scanning trolley 23 and an electromagnetic chuck 18.
Claims (7)
1. An ultrasonic automatic inspection device for a pressure vessel of a high temperature gas cooled reactor nuclear reactor, comprising: displacement detection subassembly (6), the vice (5) of hoist subassembly, wire rope A (7), wire rope B (8), circumference guide rail (9), its characterized in that: the displacement detection component (6) and the hoisting component pair (5) are fixedly arranged on the circular motion trolley (4); the winch assembly pair (5) is connected with the outer wall scanning device (2) through a steel wire rope A (7) and a steel wire rope B (8); the outer wall scanner (2) is tightly attached to the outer surface of the pressure container (3); the circular motion trolley (4) is integrally arranged on the circular guide rail (9), and the circular motion trolley (4) can only rotate along the circular guide rail (9) under the simultaneous action of the rolling support component (11), the mechanical limit component (10) and the elastic limit component (12); the circumferential guide rail (9) is fixedly arranged at the top of the concrete (1);
the outer wall scanning device (2) comprises a rear jacking kinematic pair (16), a front jacking kinematic pair (17), an electromagnetic chuck (18), a circumferential driving component A (19), an axial scanning kinematic shaft (20) and a circumferential scanning driving component B (24); wherein, the outer wall scanner (2) is fan-shaped as a whole, and an axial scanning motion shaft (20) extends out of the middle of the outer wall scanner; the electromagnetic chucks (18) are distributed at the left end and the right end of a sector plate of the outer wall scanner (2), and the front jacking kinematic pair (17) is fixedly arranged on the outer wall scanner (2) and positioned behind the electromagnetic chucks (18) and jacks the electromagnetic chucks (18); the rear jacking kinematic pair (16) is positioned at the outermost side of the outer wall scanner (2) and is tightly attached to the front jacking kinematic pair (17); the circumference driving component A (19) is fixedly arranged on the arc-shaped part of the outer wall scanner (2); the circumferential scanning driving component B (24) is fixedly connected with the axial scanning motion shaft (20); the circumference scanning trolley (23) is arranged below the guide rail B (22); the circumferential scanning trolley (23), the circumferential scanning driving component B (24) and the axial scanning motion shaft (20) are in threaded connection.
2. The ultrasonic automatic inspection device for the pressure vessel of the high-temperature gas cooled reactor nuclear reactor as claimed in claim 1, wherein: the circular motion trolley (4) comprises: the device comprises a mechanical limiting component (10), a rolling support component (11), an elastic limiting component (12), a position sensing component (13), an encoding component (14) and a circumference driving motor (15); the whole circular motion trolley (4) is fan-shaped; the mechanical limiting component (10) and the rolling supporting component (11) are fixedly arranged on the lower surface of the panel of the circular motion trolley (4) and are symmetrically distributed on the left side and the right side; the coding component (14) is arranged at the outer end of the circular motion trolley (4); the circumference driving motor (15) is arranged at the center of the lower surface of the panel of the circumference scanning trolley (4); the position sensing component (13) and the elastic limiting component (12) are arranged on the lower surface of the panel of the circular motion trolley (4); the hoisting assembly pair is arranged on the upper surface of the circular motion trolley (4).
3. The ultrasonic automatic inspection device for the pressure vessel of the high-temperature gas cooled reactor nuclear reactor as claimed in claim 1, wherein: the outer wall scanning device (2) is connected with the winch assembly pair (5) through a steel wire rope A (7) and a steel wire rope B (8), the other end connector of the steel wire rope is connected to the guide rail A (21), and the circular motion trolley (4) can drive the whole outer wall scanning device (2) to rotate along the outer surface of the pressure vessel in a whole circle when moving along the circular guide rail (9).
4. The ultrasonic automatic inspection device for the pressure vessel of the high temperature gas cooled reactor nuclear reactor as claimed in claim 3, wherein: the guide rail B (22) slides along the guide rail a (21).
5. The ultrasonic automatic inspection device for the pressure vessel of the high-temperature gas cooled reactor nuclear reactor as claimed in claim 2, wherein: the mechanical limiting assembly (10) comprises: a guide rail C (25), a slide block (26) and a quick pin (27); the sliding block (26) is in sliding connection with the guide rail C (25), a through hole is formed in the part, connected with the guide rail C (25), of the sliding block (26), and the quick pin (27) achieves limiting through the through hole in the sliding block (26).
6. The ultrasonic automatic inspection device for the pressure vessel of the high temperature gas cooled reactor nuclear reactor as claimed in claim 1, wherein: the direction of the steel wire rope A (7) is the same as that of the steel wire rope B (8).
7. The ultrasonic automatic inspection device for the pressure vessel of the high temperature gas cooled reactor nuclear reactor as claimed in claim 2, wherein: the elastic limiting component (12) comprises: a guide rail C (25), a slide block (26) and a quick pin (27); the sliding block (26) is in sliding connection with the guide rail C (25), a through hole is formed in the part, connected with the guide rail C (25), of the sliding block (26), and the quick pin (27) achieves limiting through the through hole in the sliding block (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619656.6A CN111380954A (en) | 2018-12-28 | 2018-12-28 | Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619656.6A CN111380954A (en) | 2018-12-28 | 2018-12-28 | Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor |
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| CN111380954A true CN111380954A (en) | 2020-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147220A (en) * | 2020-09-02 | 2020-12-29 | 中石化工建设有限公司 | Nondestructive testing device for internal defects of concrete member |
| CN114220565A (en) * | 2021-12-15 | 2022-03-22 | 华能核能技术研究院有限公司 | High temperature gas cooled reactor main equipment supports connecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147220A (en) * | 2020-09-02 | 2020-12-29 | 中石化工建设有限公司 | Nondestructive testing device for internal defects of concrete member |
| CN114220565A (en) * | 2021-12-15 | 2022-03-22 | 华能核能技术研究院有限公司 | High temperature gas cooled reactor main equipment supports connecting device |
| CN114220565B (en) * | 2021-12-15 | 2024-04-26 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor main equipment support connecting device |
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