CN116189937A - High-temperature gas cooled reactor pressure vessel ultrasonic inspection couplant circulation system - Google Patents
High-temperature gas cooled reactor pressure vessel ultrasonic inspection couplant circulation system Download PDFInfo
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- CN116189937A CN116189937A CN202211548844.0A CN202211548844A CN116189937A CN 116189937 A CN116189937 A CN 116189937A CN 202211548844 A CN202211548844 A CN 202211548844A CN 116189937 A CN116189937 A CN 116189937A
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- couplant
- pressure vessel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention provides a couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel, which comprises an inspection assembly positioned at the welding line position of the pressure vessel, a first couplant box which is connected with the pipeline of the inspection assembly and can convey couplant to a probe of the inspection assembly, a couplant collecting tank which is fixedly arranged around the pressure vessel and positioned below the welding line of the pressure vessel, and a second couplant box which is connected with the pipeline of the couplant collecting tank and can recycle the couplant in the couplant collecting tank, wherein the second couplant box is connected with the pipeline of the first couplant box. The couplant circulating system for ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel provided by the invention can recycle the couplant, saves the couplant and avoids the waste of the couplant.
Description
Technical Field
The invention relates to the technical field of nondestructive testing of pressure vessels of nuclear power stations, in particular to a couplant circulating system for ultrasonic inspection of high-temperature gas cooled reactor pressure vessels.
Background
The nuclear power station pressure vessel is one of core components of a nuclear reactor coolant pressure boundary and consists of a cylinder assembly, a top cover assembly, a bottom seal head, a flange seal and other structures.
The high temperature gas cooled reactor cylinder assembly is formed by combining multiple sections of welding, in the use process, ultrasonic detection is required to be carried out on the welding seam of the cylinder assembly according to the detection specification, and in order to improve the accuracy and reliability of detection data and reduce the irradiation of radioactive rays on a human body, automatic ultrasonic detection is generally carried out on the welding seam of the cylinder assembly by using ultrasonic automatic detection equipment of a pressure vessel of the high temperature gas cooled reactor.
The ultrasonic automatic inspection equipment rack for the high-temperature gas cooled reactor pressure vessel is arranged on a circular track on the table top of a concrete platform through a lifting device, the reactor pressure vessel is fixedly arranged in a courtyard of the concrete platform, the lifting device is connected with an inspection component of the automatic inspection equipment through a steel wire rope, and the inspection component can be conveyed to the welding seam position of the pressure vessel cylinder assembly by utilizing the lifting function of the lifting device, so that the welding seam is inspected from the outer surface of the pressure vessel cylinder assembly. And, through elevating gear on circular track motion, can drive the inspection subassembly and circulate around pressure vessel barrel sub-assembly to can inspect the whole welding seam of barrel sub-assembly. After one weld of the pressure vessel cylinder assembly is inspected, the height of the inspection assembly is changed by the lifting device, and other welds of the pressure vessel cylinder assembly can be inspected.
Since the inspection component performs inspection of the weld from the exterior surface of the pressure vessel cylinder assembly, it is necessary to continuously provide the probe of the inspection component with a couplant during the inspection process in order to ensure that the quality of the inspection signal is satisfactory. Because the height of the table top of the concrete platform where the high-temperature gas cooled reactor pressure vessel is located is about 25 meters from the welding seam position of the pressure vessel cylinder assembly, the couplant sprayed from the probe of the inspection assembly is not easy to recycle, and if the couplant sprayed from the probe of the inspection assembly is discarded after being sprayed, huge waste of the couplant can be caused. Therefore, it is necessary to design a recovery device of the couplant for ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel, and recover the couplant sprayed by the probe of the inspection assembly of the inspection device, so as to avoid wasting the couplant.
Disclosure of Invention
The invention aims to solve the technical problem of providing a couplant circulating system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel, which can recycle and reuse the couplant.
In order to solve the technical problems, the invention provides a couplant circulating system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel, which comprises an inspection assembly positioned at the welding line position of the pressure vessel, a first couplant box which is connected with the pipeline of the inspection assembly and can convey couplant to a probe of the inspection assembly, a couplant collecting tank which is fixedly arranged around the pressure vessel and positioned below the welding line of the pressure vessel, and a second couplant box which is connected with the pipeline of the couplant collecting tank and can recycle the couplant in the couplant collecting tank, wherein the second couplant box is connected with the pipeline of the first couplant box.
Further, the inspection assembly is connected with a lifting device through a steel wire rope, and the lifting device is arranged on the circular track.
Further, the pressure vessel is arranged in a courtyard of the concrete platform, and the circular track is arranged on the surface of the concrete platform around the courtyard of the concrete platform.
Further, the first couplant box and the second couplant box are respectively provided with a couplant circulating pump.
Further, the first couplant tank is connected to a couplant supply apparatus pipe.
Further, the second couplant box is connected with a couplant filtering device pipeline, and the couplant filtering device is connected with the first couplant box pipeline.
Further, the second couplant box is arranged at the bottom of the courtyard of the concrete platform.
Further, a nuclear island platform is fixedly arranged on the side wall of the upper portion of the concrete platform, and the first couplant box is arranged on the nuclear island platform.
The invention provides a couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel, which is provided with two connected couplant boxes, wherein a first couplant box is connected with an inspection assembly pipeline of ultrasonic inspection equipment to convey couplant to a probe of the inspection assembly, and a second couplant box is connected with a couplant collecting tank pipeline arranged at the lower part of the inspection assembly to recycle the couplant in the couplant collecting tank, and the couplant recycled in the couplant collecting tank is conveyed into the first couplant box for recycling after being filtered. Therefore, the requirement of on-site ultrasonic inspection of the cold pile pressure vessel can be met, the couplant sprayed out of the inspection assembly probe is recycled, purified and reused, the purpose of saving the couplant is achieved, and the waste of the couplant is avoided. Meanwhile, the couplant circulation system for ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel can continuously provide couplant for the probe of the inspection assembly, and can also improve the efficiency of ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel.
Drawings
Fig. 1 is a schematic structural diagram of a couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, the couplant circulation system for ultrasonic inspection of a pressure vessel of a high-temperature gas cooled reactor provided by the embodiment of the invention comprises a first couplant box 5, an inspection assembly 8, a couplant collecting tank 9 and a second couplant box 10. Wherein, inspection assembly 8 is located the welding seam position of pressure vessel 7, and first couplant case 5 is connected through pipeline 2 with inspection assembly 7, can carry the couplant to the probe of inspection assembly 8 through first couplant case 5. The couplant collecting tank 9 is fixedly arranged around the pressure container 7 and below the welding seam of the pressure container 7, and the couplant sprayed by the probe of the inspection assembly 8 can be collected through the couplant collecting tank 9. The second couplant box 10 is connected with the couplant collecting tank 9 through the pipeline 2, and the couplant collected in the couplant collecting tank 10 can flow into the second couplant box 10 through the pipeline 2. The second couplant tank 10 is connected to the first couplant tank 5 through a pipe 2 for delivering the recovered couplant into the first couplant tank 5.
Since the couplant collected by the couplant collecting tank 9 is the couplant sprayed by the probe of the inspection assembly, the couplant is collected in the couplant collecting tank 9 and is inevitably mixed with certain impurities, and therefore, the second couplant tank is further connected with a pipe of the couplant filtering device (not shown in the figure), and the couplant filtering device is connected with the first couplant tank 5 through the pipe 2. The couplant mixed with impurities in the second couplant box 10 enters the couplant filtering equipment to be filtered and purified, and the purified couplant enters the first couplant box through the pipeline 2 to be directly reused.
As a specific embodiment of the present invention, the second couplant tank 10 is disposed at the bottom of the patio of the concrete platform 6. The side wall of the upper part of the concrete platform 6 is fixedly provided with a nuclear island platform 4, and the first couplant box 5 is fixedly arranged on the nuclear island platform 4.
Since the vertical distance between the second couplant tank 10 and the first couplant tank 5 is large, in order to enable the couplant recovered in the second couplant tank 10 to be delivered to the first couplant tank 5, a couplant circulating pump (not shown in the figure) is provided in the second couplant tank 10, through which the couplant filtered and purified by the couplant filtering apparatus can be delivered into the first couplant tank 5.
As a specific embodiment of the present invention, for convenience and at any time, the couplant is added into the first couplant tank 5, and the first couplant tank 5 is connected with the couplant supply apparatus 3 through the pipe 2.
In order to enable the couplant in the first couplant tank 5 to enter the inspection unit 8 and be ejected from the probe of the inspection unit 8, a couplant circulation pump (not shown) is provided in the first couplant tank 5, and the couplant in the first couplant tank 5 can be pressed to the inspection unit 8 by the couplant circulation pump.
As a specific embodiment of the invention, the inspection assembly 8 is connected to the lifting device 1 via a wire rope, the lifting device 1 being arranged on a circular track.
Wherein the pressure vessel 7 is arranged in the patio of the concrete platform 6 and said circular track is arranged on the surface of the concrete platform around the patio of the concrete platform 6. The lifting device 1 can, by its lifting function, send an inspection assembly 8 connected thereto by means of a wire rope to the weld position of the cylinder assembly of the pressure vessel 7, the inspection assembly 8 performing inspection of the weld of the cylinder assembly from the outer surface of the cylinder assembly of the pressure vessel 7. And, when the lifting device 1 moves on the circular orbit, the inspection component 8 can be driven to rotate around the cylinder assembly of the pressure container 7, so that the whole welding line of the cylinder assembly can be inspected. Meanwhile, after one welding line of the barrel assembly of the pressure container 7 is inspected, the height of the inspection component 8 can be changed through the lifting function of the lifting device 1, so that the inspection component 8 can be adjusted to other welding line positions of the barrel assembly of the pressure container 7, and other welding lines of the barrel assembly of the pressure container 7 can be inspected.
When the couplant circulation system for ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel provided by the embodiment of the invention is used, the switch of the couplant supply device 3 is firstly turned on, the first couplant tank 5 is filled with the couplant, then the couplant circulation pump in the first couplant tank 5 is started, the couplant in the first couplant tank 5 is injected into the probe of the inspection assembly 8, and a coupling function is provided for the inspection of the probe.
After the coupling function is completed, the couplant sprayed out of the probe of the inspection assembly 8 falls into the couplant collecting tank 9, the couplant collecting tank 9 collects and stores the working couplant, the couplant in the couplant collecting tank 9 is conveyed to the second couplant box 10 through the pipeline 2, the collected couplant in the second couplant box 10 is filtered by the couplant filtering equipment and then conveyed to the first couplant box 5 through the couplant circulating pump in the second couplant box 10, and the purified couplant is conveyed to the first couplant box 5 through the pipeline 2. The couplant entering the first couplant tank 5 can be transported to the inspection assembly 8 for reuse. Thereby achieving the purpose of saving the couplant and avoiding the waste of the couplant. Moreover, through the couplant circulation system for ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel, the couplant can be continuously provided for the probe of the inspection assembly 8, the coupling function can be continuously realized for the welding seam of the cylinder assembly of the pressure vessel 7, and the working efficiency of ultrasonic inspection of the high-temperature gas cooled reactor pressure vessel is improved.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (8)
1. A couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel is characterized in that: the device comprises an inspection assembly positioned at the welding seam position of the pressure container, a first couplant box which is connected with a pipeline of the inspection assembly and can convey couplant to a probe of the inspection assembly, a couplant collecting tank which is fixedly arranged around the pressure container and positioned below the welding seam of the pressure container, and a second couplant box which is connected with the pipeline of the couplant collecting tank and can recycle couplant in the couplant collecting tank, wherein the second couplant box is connected with the pipeline of the first couplant box.
2. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: the inspection assembly is connected with the lifting device through a steel wire rope, and the lifting device is arranged on the circular track.
3. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 2, wherein: the pressure vessel is arranged in a courtyard of the concrete platform, and the circular track is arranged on the surface of the concrete platform around the courtyard of the concrete platform.
4. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: and the first couplant box and the second couplant box are respectively provided with a couplant circulating pump.
5. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: the first couplant tank is connected with a couplant supply device pipeline.
6. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: the second couplant box is connected with the couplant filtering device through a pipeline, and the couplant filtering device is connected with the first couplant box through a pipeline.
7. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: the second couplant box is arranged at the bottom of the courtyard of the concrete platform.
8. The couplant circulation system for ultrasonic inspection of a high-temperature gas cooled reactor pressure vessel according to claim 1, wherein: the upper side wall of the concrete platform is fixedly provided with a nuclear island platform, and the first couplant box is arranged on the nuclear island platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211548844.0A CN116189937A (en) | 2022-12-05 | 2022-12-05 | High-temperature gas cooled reactor pressure vessel ultrasonic inspection couplant circulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211548844.0A CN116189937A (en) | 2022-12-05 | 2022-12-05 | High-temperature gas cooled reactor pressure vessel ultrasonic inspection couplant circulation system |
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| Publication Number | Publication Date |
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| CN116189937A true CN116189937A (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211548844.0A Pending CN116189937A (en) | 2022-12-05 | 2022-12-05 | High-temperature gas cooled reactor pressure vessel ultrasonic inspection couplant circulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539727A (en) * | 2023-06-30 | 2023-08-04 | 天津市首通工程检测技术有限公司 | Pipeline defect ultrasonic detection device |
-
2022
- 2022-12-05 CN CN202211548844.0A patent/CN116189937A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539727A (en) * | 2023-06-30 | 2023-08-04 | 天津市首通工程检测技术有限公司 | Pipeline defect ultrasonic detection device |
| CN116539727B (en) * | 2023-06-30 | 2023-09-08 | 天津市首通工程检测技术有限公司 | Pipeline defect ultrasonic detection device |
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