CN111243768A - Liquid permeation detection device for limited operation space of high-temperature gas cooled reactor nuclear power station - Google Patents
Liquid permeation detection device for limited operation space of high-temperature gas cooled reactor nuclear power station Download PDFInfo
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- CN111243768A CN111243768A CN202010003773.0A CN202010003773A CN111243768A CN 111243768 A CN111243768 A CN 111243768A CN 202010003773 A CN202010003773 A CN 202010003773A CN 111243768 A CN111243768 A CN 111243768A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
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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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Abstract
The invention relates to a liquid permeation detection device for a limited operation space of a high-temperature gas cooled reactor nuclear power station, and belongs to the technical field of nuclear power engineering construction. The liquid penetration detection device of the invention is characterized in that a developer spray tank is arranged in the penetration detection device, under the condition that a detection person does not need to be close to a detected part, the detection person stretches the detection device into a limited operation space to finish the developer spraying process on the detected metal surface, after the specified development time, the detection person can continuously take pictures through a camera, and a professional can observe and evaluate the image condition of the developer sprayed on the detected metal surface through a picture to finish the penetration detection of the detected metal surface. The device has the advantages of long-distance implementation, convenient operation, uniform developer spraying, simple flow, reliable detection quality and the like, successfully solves the problem of penetration detection of the metal surface in a limited operation space, and can be popularized and applied to other engineering fields.
Description
Technical Field
The invention relates to a liquid permeation detection device for a limited operation space of a high-temperature gas cooled reactor nuclear power station, and belongs to the technical field of nuclear power engineering construction.
Background
The high-temperature gas cooled reactor nuclear power station pressure vessel circumference location frid lies in between pressure vessel casing and the inner structure, and the pressure vessel top edge is greater than 600mm apart from circumference location frid (called the location frid down), and the length of location frid 350mm, location frid and pressure vessel adopt full penetration welded connection, need carry out the penetration detection to frid metal surface (welding seam and base metal). Because of the pressure vessel inner structure has taken one's place, cause the on-the-spot detection space narrow (the widest distance between pressure vessel internal surface and the inner structure surface is not more than 80mm, the deepest of positioning groove board is greater than 950mm), and the spraying direction of developer must make the nozzle openly operate positioning groove board metal surface perpendicularly in the penetration testing, because of operating space is limited, the testing personnel can't be close to positioning groove board metal surface and carry out manual direct spraying to can't carry out the penetration testing to pressure vessel circumference positioning groove board surface.
Disclosure of Invention
The invention aims to provide a liquid penetration detection device for a limited operation space of a high-temperature gas-cooled reactor nuclear power station, which is used for solving the problem of penetration detection of the surface of a positioning groove plate of a pressure vessel of the high-temperature gas-cooled reactor nuclear power station.
The invention provides a liquid permeation detection device for a limited operation space of a high-temperature gas cooled reactor nuclear power station, which comprises a support dowel bar, an operating rod, a positioning guide ring, a matching ring, a spray tank fixing cylinder, an adjustable bolt, a support base and a developer spray tank, wherein the support dowel bar is fixedly arranged on the support dowel bar; the developer spraying tank is coaxially arranged at the lower part of the operating rod through a matching ring, and the upper end of the developer spraying tank is provided with a nozzle; the developer spraying tank is fixed in the spraying tank fixing cylinder through an adjustable bolt, and a supporting base is arranged at the bottom of the spraying tank fixing cylinder; the middle straight-line section of the support dowel bar is relatively fixed with the operating rod through a positioning guide ring, and the lower part of the support dowel bar is relatively fixed with a support base at the bottom of the spray tank fixing cylinder; the upper end parts of the supporting dowel bar and the operating rod are respectively provided with a handle and a pressing rod, and pressure is applied to the developer spraying tank through the handle and the pressing rod, so that the developer in the developer spraying tank is sprayed out from the nozzle, and the liquid permeation detection of the sprayed surface is realized.
The liquid permeation detection device for the limited operation space of the high-temperature gas cooled reactor nuclear power station, provided by the invention, has the advantages that:
the invention relates to a liquid permeation detection device for a limited operation space of a high-temperature gas cooled reactor nuclear power station, which is characterized in that a developer spray tank is arranged in the permeation detection device, the detection device is stretched into the limited operation space by a detection person under the condition that the detection person does not need to be close to a detected part, the developer spraying process is completed on the surface of detected metal, after the specified development time, the continuous shooting can be carried out through a camera, and professionals observe and evaluate the image condition of the developer sprayed on the surface of the detected metal through a photo to complete the permeation detection of the surface of the detected metal. The device has the advantages of long-distance implementation, convenient operation, uniform developer spraying, simple flow, reliable detection quality and the like, successfully solves the problem of penetration detection of the metal surface in a limited operation space, and can be popularized and applied to other engineering fields.
Drawings
Fig. 1 is a schematic structural diagram of a liquid penetration detection device for a limited operation space of a high temperature gas cooled reactor nuclear power plant according to the present invention.
FIG. 2 is a schematic view showing the operation of the liquid permeation testing apparatus according to the present invention in use.
FIG. 3 is a top view of the pressure vessel circumferentially oriented slot plate space.
In fig. 1 to 3, 1 is a support dowel bar, 2 is an operation bar, 3 is a positioning guide ring, 4 is a fitting ring, 5 is a spray tank fixing cylinder, 6 is an adjustable bolt, 7 is a support base, 8 is a developer spray tank, 9 is a nozzle, 10 is a handle, 11 is a press bar, 12 is a circumferential positioning groove plate, 13 is a pressure vessel shell, and 14 is an internal structure.
Detailed Description
The liquid permeation detection device for the limited operation space of the high-temperature gas cooled reactor nuclear power station, which is provided by the invention, has the structure shown in figure 1, and comprises a support dowel bar 1, an operating rod 2, a positioning guide ring 3, a matching ring 4, a spray tank fixing cylinder 5, an adjustable bolt 6, a support base 7 and a developer spray tank 8; the developer spraying tank 8 is coaxially arranged at the lower part of the operating rod 2 through the matching ring 4, and the upper end of the developer spraying tank 8 is provided with a nozzle 9; the developer spraying tank fixing cylinder 5 is sleeved outside the developer spraying tank 8, the developer spraying tank 8 is fixed in the developer spraying tank fixing cylinder 5 through an adjustable bolt 6, and a supporting base 7 is arranged at the bottom of the developer spraying tank fixing cylinder 5; the middle straight-line section of the support dowel bar 1 is relatively fixed with the operating rod 2 through the positioning guide ring 3, and the lower part of the support dowel bar 1 is relatively fixed with the support base 7 at the bottom of the spray tank fixing cylinder 5; the upper end parts of the supporting dowel bar 1 and the operating rod 2 are respectively provided with a handle 10 and a pressure lever 11, pressure is applied to the developer spraying tank 8 through the handle 10 and the pressure lever 11, the developer in the developer spraying tank 8 is sprayed out from the nozzle 9, and liquid permeation detection of a sprayed surface is realized.
The main structure of the liquid penetration detection device comprises a handle 10, a support dowel bar 1, a positioning guide ring 3 and a support base 7. The developer spray can is extended into the surface of the metal to be detected, namely the inner surface of the pressure container shell 13 in the figure 3 through the main structure to carry out the spraying operation. The pressure of the developer spray tank 8 is transmitted to the support dowel bar 1 and the handle 10 through the support base 7, and then transmitted to the hands of an operator. The positioning guide ring 3 on the supporting dowel bar 1 is used for fixing the pressure bar 11 so that the pressure bar can only move up and down.
The operating part of the liquid penetration detection device consists of a pressure lever 11, an operating lever 2 and a matching ring 4, and a detector applies appropriate pressure to the pressure lever 11 and sprays the developer through the operating lever 2 under the condition that the matching ring 4 is in close contact with the developer spraying tank 8. The matching ring 4 makes the operating rod 2 effectively and closely contact with the developer nozzle, and ensures that the developer is uniformly sprayed out.
The spraying tank fixing cylinder 5 and the adjustable bolt are used for fixing the developer spraying tank 8, ensuring that the spraying tank and the operating rod are overlapped in axial line and ensuring that the developer is uniformly sprayed out.
The working principle and the working process of the liquid permeation detection device for the limited operation space of the high-temperature gas cooled reactor nuclear power station are described in detail in the following with the accompanying drawings:
fig. 2 is a schematic view showing the operation of the liquid permeation testing apparatus according to the present invention in a use state, in fig. 2, 12 is a circumferential direction positioning groove plate, 13 is a pressure vessel casing, and 14 is an internal structure. At the start of the test, the tester inserts the liquid permeation testing apparatus of the present invention into the limited operation space, as shown in fig. 3, i.e., the circumferential positioning groove plate 12 between the pressure vessel casing 13 and the internal structure 14, and by moving the liquid permeation testing apparatus up and down and operating the operating member, the developer in the developer spray tank 8 is sprayed from the nozzle 9, and the developer is sprayed onto the inner surface of the pressure vessel casing 13.
After the developer is sprayed, a camera is used for shooting the developer on the metal surface in real time, the camera is used for continuously shooting the metal surface in a segmented mode through recording and observing the developing process, and professionals observe and evaluate the condition of the image of the developer sprayed on the detected metal surface through the picture, so that the penetration detection work of the detected metal surface is completed.
Claims (1)
1. A liquid permeation detection device for a limited operation space of a high-temperature gas cooled reactor nuclear power station is characterized by comprising a support dowel bar, an operating rod, a positioning guide ring, a matching ring, a spray tank fixing cylinder, an adjustable bolt, a support base and a developer spray tank; the developer spraying tank is coaxially arranged at the lower part of the operating rod through a matching ring, and the upper end of the developer spraying tank is provided with a nozzle; the developer spraying tank is fixed in the spraying tank fixing cylinder through an adjustable bolt, and a supporting base is arranged at the bottom of the spraying tank fixing cylinder; the middle straight-line section of the support dowel bar is relatively fixed with the operating rod through a positioning guide ring, and the lower part of the support dowel bar is relatively fixed with a support base at the bottom of the spray tank fixing cylinder; the upper end parts of the supporting dowel bar and the operating rod are respectively provided with a handle and a pressing rod, and pressure is applied to the developer spraying tank through the handle and the pressing rod, so that the developer in the developer spraying tank is sprayed out from the nozzle, and the liquid permeation detection of the sprayed surface is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003773.0A CN111243768A (en) | 2020-01-03 | 2020-01-03 | Liquid permeation detection device for limited operation space of high-temperature gas cooled reactor nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003773.0A CN111243768A (en) | 2020-01-03 | 2020-01-03 | Liquid permeation detection device for limited operation space of high-temperature gas cooled reactor nuclear power station |
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| Publication Number | Publication Date |
|---|---|
| CN111243768A true CN111243768A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010003773.0A Pending CN111243768A (en) | 2020-01-03 | 2020-01-03 | Liquid permeation detection device for limited operation space of high-temperature gas cooled reactor nuclear power station |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030993A (en) * | 1996-07-16 | 1998-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Liquid penetrant inspection adapter for j-welded part |
| JP2001141667A (en) * | 1999-11-10 | 2001-05-25 | Toshiba Corp | Apparatus and method for inspecting welded part of elbow |
| JP2007147308A (en) * | 2005-11-24 | 2007-06-14 | Nippon Steel Engineering Co Ltd | Leak test method |
| KR20100060128A (en) * | 2008-11-27 | 2010-06-07 | 한전케이피에스 주식회사 | Liquid penetrant testing apparatus for a welding part of steam genderater heating pipe |
| CN102495001A (en) * | 2011-12-13 | 2012-06-13 | 无锡市新峰管业股份有限公司 | Spraying device of penetrant flaw detection coloring liquid |
| JP2013011494A (en) * | 2011-06-28 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Liquid penetrant testing device and method |
| CN203437245U (en) * | 2013-08-29 | 2014-02-19 | 新兴铸管股份有限公司 | coloring agent elongated spraying device |
| CN207742125U (en) * | 2017-12-31 | 2018-08-17 | 天津欣维检测技术有限公司 | A kind of weld bond dye penetrant inspection device |
| CN209606342U (en) * | 2018-12-24 | 2019-11-08 | 南京南化建设有限公司 | Pressure vessel detection device |
| CN110530767A (en) * | 2018-05-24 | 2019-12-03 | 核动力运行研究所 | A kind of control rod drive mechanism remote auto penetrating inspection device and method |
-
2020
- 2020-01-03 CN CN202010003773.0A patent/CN111243768A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030993A (en) * | 1996-07-16 | 1998-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Liquid penetrant inspection adapter for j-welded part |
| JP2001141667A (en) * | 1999-11-10 | 2001-05-25 | Toshiba Corp | Apparatus and method for inspecting welded part of elbow |
| JP2007147308A (en) * | 2005-11-24 | 2007-06-14 | Nippon Steel Engineering Co Ltd | Leak test method |
| KR20100060128A (en) * | 2008-11-27 | 2010-06-07 | 한전케이피에스 주식회사 | Liquid penetrant testing apparatus for a welding part of steam genderater heating pipe |
| JP2013011494A (en) * | 2011-06-28 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Liquid penetrant testing device and method |
| CN102495001A (en) * | 2011-12-13 | 2012-06-13 | 无锡市新峰管业股份有限公司 | Spraying device of penetrant flaw detection coloring liquid |
| CN203437245U (en) * | 2013-08-29 | 2014-02-19 | 新兴铸管股份有限公司 | coloring agent elongated spraying device |
| CN207742125U (en) * | 2017-12-31 | 2018-08-17 | 天津欣维检测技术有限公司 | A kind of weld bond dye penetrant inspection device |
| CN110530767A (en) * | 2018-05-24 | 2019-12-03 | 核动力运行研究所 | A kind of control rod drive mechanism remote auto penetrating inspection device and method |
| CN209606342U (en) * | 2018-12-24 | 2019-11-08 | 南京南化建设有限公司 | Pressure vessel detection device |
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Application publication date: 20200605 |