CN112489837A - Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism - Google Patents
Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism Download PDFInfo
- Publication number
- CN112489837A CN112489837A CN202011361745.2A CN202011361745A CN112489837A CN 112489837 A CN112489837 A CN 112489837A CN 202011361745 A CN202011361745 A CN 202011361745A CN 112489837 A CN112489837 A CN 112489837A
- Authority
- CN
- China
- Prior art keywords
- thick bamboo
- rope
- shielding section
- shielding
- sleeve pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 12
- 210000000078 claw Anatomy 0.000 title claims abstract description 8
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 43
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 43
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 43
- 241001330002 Bambuseae Species 0.000 claims description 42
- 239000011425 bamboo Substances 0.000 claims description 42
- 241000209128 Bambusa Species 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a film distribution device and a method for in-service inspection of a claw gasket of a control rod driving mechanism, wherein the film distribution device comprises an inner sleeve pipe assembly, a through containing cavity is formed inside the inner sleeve pipe assembly, a plurality of positioning steps for installing a film are arranged on the peripheral surface of the inner sleeve pipe assembly, the device also comprises shielding cylinders which are respectively suspended at the periphery of the inner sleeve pipe assembly and respectively correspond to the positioning steps, and connecting ropes for connecting the shielding cylinders and the inner sleeve pipe assembly, one end of each connecting rope, which is connected with the inner sleeve pipe assembly, is positioned above the corresponding shielding cylinder, and when a plurality of shielding cylinders are arranged, the outer diameter of the shielding cylinder positioned above the shielding cylinders is smaller than the inner diameter of the shielding cylinder positioned below the shielding cylinders. The problem that personnel in a narrow space cannot enter the cloth piece is solved, and the on-site flaw detection requirement is met; the number of parts is small, and the anti-drop design of the back screen meets the requirement of field foreign matter prevention; two films can be quickly and accurately positioned, and the concentricity is high; the direction is better, and the lift process is stable, and is not damaged the work piece.
Description
Technical Field
The invention belongs to the field of nuclear power detection equipment, and particularly relates to a piece distribution device and method for in-service inspection of a claw gasket of a control rod driving mechanism.
Background
In the nuclear power third-generation EPR reactor type, the design of gaskets exists at two ends of part of pin shafts of a movable hook component and a fixed hook component of a control rod driving mechanism, and whether the gaskets exist or not needs to be determined through radiographic inspection during service inspection. The hook components are all located inside a pressure-resistant shell of the control rod driving mechanism, the 3 upper moving hook components are circumferentially and uniformly distributed and arranged, and the 3 lower fixed hook components are also circumferentially and uniformly distributed and arranged. In order to ensure the imaging effect, the ray method adopts a central exposure process, a film and a back screen need to be arranged at the periphery of the pressure-resistant shell, but because a control rod guide cylinder is not detached from a top cover during the service inspection, the space is narrow, the radiation dose rate is large, and personnel cannot enter the device easily, a film distribution device needs to be designed, the installation and the positioning of the film and the back screen are realized, and foreign matters cannot be generated in the operation process.
Disclosure of Invention
The invention aims to provide a sheet distribution device for in-service inspection of a claw gasket of a control rod driving mechanism, which solves the problem that personnel in a narrow space cannot enter the sheet distribution device and meets the field flaw detection requirement.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a cloth piece device that is used for control rod drive mechanism hook claw gasket at labour inspection, its includes interior sleeve pipe subassembly, the inside of interior sleeve pipe subassembly forms the chamber that holds that link up, is equipped with the location step that a plurality of is used for installing the film on its global, the device is still including hanging respectively and locating interior sleeve pipe subassembly periphery and with each a shielding section of thick bamboo that the location step corresponds respectively, be used for connecting a shielding section of thick bamboo with interior sleeve pipe subassembly's connecting rope, connecting rope with the one end that interior sleeve pipe subassembly is connected is located the top rather than the shielding section of thick bamboo that corresponds, works as when a shielding section of thick bamboo has a plurality ofly, in two adjacent shielding sections of thick bamboo, the external diameter that is located the shielding section of thick bamboo of top is.
Preferably, the inner sleeve component comprises a positioning cover, a lining arranged on the inner side of the upper end of the positioning cover and a framework connected to the lower end of the positioning cover, the positioning step is located on the outer peripheral surface of the framework, and the upper end of the connecting rope is fixedly connected with the positioning cover.
Further, the location step has two, is first location step and the second location step that is located first location step below respectively, shielding section of thick bamboo be respectively with the corresponding last shielding section of thick bamboo of first location step and with the corresponding lower shielding section of thick bamboo of second location step, connect the rope including connecting go up shielding section of thick bamboo and location cover between first rope, connection be in second rope, connection between shielding section of thick bamboo and the location cover down shielding section of thick bamboo and location cover with third rope between the lower tip of skeleton, first rope and second rope all have two at least, and distribute evenly respectively around last shielding section of thick bamboo and shielding section of thick bamboo down, the third rope is from top to bottom from last shielding section of thick bamboo and shielding section of thick bamboo down outside bypass the back and the lower tip fixed connection of skeleton.
Furthermore, a hanging ring is arranged on the inner sleeve assembly.
The invention also provides a method for cloth based on the device, which comprises the following steps:
a. hoisting the shielding cylinder at the position to be detected to expose the corresponding positioning step;
b. surrounding the lower part of the camera bag provided with the film around the positioning step and pasting the two overlapped ends of the camera bag;
c. then resetting the lifted shielding cylinder;
d. sleeving the installed sheet distribution device on a control rod driving mechanism to be detected from the upper part until the lower end face of the framework is contacted with the control rod driving mechanism;
e. then exposure is carried out, and the device is hoisted after the exposure is finished; and repeating the steps to complete the exposure of other exposure points.
The invention has the beneficial effects that: the problem that personnel in a narrow space cannot enter the cloth piece is solved, and the on-site flaw detection requirement is met; the number of parts is small, and the anti-drop design of the back screen meets the requirement of field foreign matter prevention; two films can be quickly and accurately positioned, and the concentricity is high; the direction is better, and the lift process is stable, and is not damaged the work piece.
Drawings
FIG. 1 is a perspective view of the device of the present invention;
FIG. 2 is a cross-sectional view of the apparatus of the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
fig. 4 is an enlarged view at B of fig. 2.
Detailed Description
The invention is described in detail below with reference to embodiments shown in the drawings to which:
as shown in fig. 1-2, the sheet distribution device for the in-service inspection of the claw gasket of the control rod drive mechanism comprises an inner sleeve assembly, a through containing cavity is formed inside the inner sleeve assembly, a plurality of positioning steps for installing a film are arranged on the peripheral surface of the inner sleeve assembly, the device further comprises shielding cylinders which are respectively suspended on the periphery of the inner sleeve assembly and correspond to the positioning steps, connecting ropes for connecting the shielding cylinders and the inner sleeve assembly, one ends of the connecting ropes, which are connected with the inner sleeve assembly, are located above the shielding cylinders corresponding to the connecting ropes, and when the shielding cylinders are multiple, the outer diameters of the shielding cylinders located above the shielding cylinders are smaller than the inner diameters of the shielding cylinders located below the shielding cylinders.
The inner sleeve component comprises a positioning cover 1, a lining 2 arranged on the inner side of the upper end of the positioning cover 1 and a framework 3 connected to the lower end of the positioning cover 1, the positioning step is located on the outer peripheral surface of the framework 3, and the upper end of the connecting rope is fixedly connected with the positioning cover 1.
The location step has two, is first location step 4 and is located the second location step 5 of first location step 4 below respectively, first location step 4 and second location step 5 correspond first installation region 41 and second installation region 51 respectively, shielding section of thick bamboo respectively be with first location step 4 corresponding last shielding section of thick bamboo 6 and with the corresponding lower shielding section of thick bamboo 7 of second location step 5, it is including connecting to connect the rope first rope 8 between last shielding section of thick bamboo 6 and location lid 1, connect second rope 9 between lower shielding section of thick bamboo 7 and the location lid 1, connect the location lid 1 with third rope 10 between the lower tip of skeleton 3, first rope 8 and second rope 9 all have two at least, and distribute uniformly respectively around last shielding section of thick bamboo 6 and around lower shielding section of thick bamboo 7, third rope 10 from top to bottom after bypassing the outside of last shielding section of thick bamboo 6 and lower shielding section of thick bamboo 7 with the lower tip of skeleton 3 And (4) fixedly connecting. And a lifting ring is arranged on the inner sleeve component.
In this embodiment: install lining 2 in location lid 1 upper portion through interference fit, fix location lid 1 on skeleton 3 through the screw thread of side, embolia last shielding section of thick bamboo 6 from skeleton 3 bottom, utilize the aluminium cover to fix respectively at location lid 1 and the 6 lewis holes of last shielding section of thick bamboo 6 with the both ends of the first rope 8 of 1.5mm, first rope 8 length just makes the lower border of last shielding section of thick bamboo 6 and the lower border parallel and level of first installation region 41 after the installation. And (3) sheathing the lower shielding cylinder 7 from the bottom of the framework 3, fixing two ends of a 1.5mm second rope 9 in hanging holes of the positioning cover 1 and the lower shielding cylinder 7 respectively by using aluminum sleeves, and enabling the lower edge of the lower shielding cylinder 7 to be 5mm above the lower edge of the second mounting area 51 due to the length of the second rope 9 after mounting. The third rope 10 is arranged in the mounting holes at the lower ends of the positioning cover 1 and the framework 3, a certain margin is left, and the third rope is connected with the bottom of the framework 3 after bypassing the outer sides of the upper shielding cylinder 6 and the lower shielding cylinder 7 to prevent the rubber sheet and the upper and lower shielding cylinders 7 from falling. Installing 4 lifting rings 11 to the positioning cover 1, connecting two adjacent lifting rings together by using a short steel wire rope, then connecting the two adjacent lifting rings together by using a thick rope, connecting the two remaining lifting rings together by using a short steel wire rope, and then connecting the two remaining lifting rings together by using another thick rope. The connecting ropes are all made of steel wire ropes.
The method for cloth based on the device comprises the following steps:
a. hoisting the shielding cylinder at the position to be detected to expose the corresponding positioning step;
b. surrounding the lower part of the camera bag provided with the film around the positioning step and pasting the two overlapped ends of the camera bag;
c. then resetting the lifted shielding cylinder;
d. sleeving the installed sheet distribution device on a control rod driving mechanism to be detected from the upper part until the lower end face of the framework is contacted with the control rod driving mechanism; e. then exposure is carried out, and the device is hoisted after the exposure is finished; and repeating the steps to complete the exposure of other exposure points.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a cloth piece device that is used for control rod drive mechanism hook claw gasket in-service inspection which characterized in that: it includes interior sleeve pipe subassembly, the inside of interior sleeve pipe subassembly forms the chamber that holds that link up, is equipped with the location step that a plurality of is used for installing the film on its global, the device still including hanging respectively locate interior sleeve pipe subassembly periphery and with each the location step shielding section of thick bamboo that corresponds respectively, be used for connecting shielding section of thick bamboo with interior sleeve pipe subassembly's connection rope, connect the rope with the one end that interior sleeve pipe subassembly is connected is located rather than the top of the shielding section of thick bamboo that corresponds, works as when a plurality of shielding section of thick bamboo, in two adjacent shielding section of thick bamboos, the external diameter that is located the shielding section of thick bamboo of top is less than the internal diameter that is located the.
2. The slice distribution apparatus for in-service inspection of control rod drive mechanism finger shims of claim 1, wherein: the inner sleeve component comprises a positioning cover, a lining arranged on the inner side of the upper end of the positioning cover and a framework connected to the lower end of the positioning cover, the positioning step is positioned on the outer peripheral surface of the framework, and the upper end of the connecting rope is fixedly connected with the positioning cover.
3. The slice distribution apparatus for in-service inspection of control rod drive mechanism finger shims of claim 2, wherein: the location step has two, is first location step and the second location step that is located first location step below respectively, shield a section of thick bamboo respectively for with the corresponding last shielding section of thick bamboo of first location step and with the corresponding lower shielding section of thick bamboo of second location step, connect the rope including connecting go up shielding section of thick bamboo and location cover between first rope, connection second rope, connection between shielding section of thick bamboo and the location cover down the location cover with third rope between the lower tip of skeleton, first rope and second rope all have two at least, and distribute evenly respectively around last shielding section of thick bamboo and shielding section of thick bamboo down, third rope from top to bottom from last shielding section of thick bamboo and shielding section of thick bamboo's the outside under and after-mentioned lower tip fixed connection of skeleton.
4. The slice distribution apparatus for in-service inspection of control rod drive mechanism finger shims of claim 2, wherein: and a lifting ring is arranged on the inner sleeve component.
5. A method of sheeting using the apparatus of any one of claims 1-4, comprising the steps of:
a. hoisting the shielding cylinder at the position to be detected to expose the corresponding positioning step;
b. surrounding the lower part of the camera bag provided with the film around the positioning step and pasting the two overlapped ends of the camera bag;
c. then resetting the lifted shielding cylinder;
d. sleeving the installed sheet distribution device on a control rod driving mechanism to be detected from the upper part until the lower end face of the framework is contacted with the control rod driving mechanism;
e. then exposure is carried out, and the device is hoisted after the exposure is finished; and repeating the steps to complete the exposure of other exposure points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361745.2A CN112489837B (en) | 2020-11-27 | 2020-11-27 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361745.2A CN112489837B (en) | 2020-11-27 | 2020-11-27 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112489837A true CN112489837A (en) | 2021-03-12 |
| CN112489837B CN112489837B (en) | 2024-04-02 |
Family
ID=74936355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011361745.2A Active CN112489837B (en) | 2020-11-27 | 2020-11-27 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112489837B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936642A (en) * | 1973-10-12 | 1976-02-03 | Compagnie Generale De Radiologie | X-ray film-handling arrangement for x-ray diagnostic apparatus |
| WO1988008151A1 (en) * | 1987-04-09 | 1988-10-20 | Eastman Kodak Company | Sheet-film cassette |
| CN102384939A (en) * | 2011-10-17 | 2012-03-21 | 中广核检测技术有限公司 | Method and apparatus for examining eddy current of control rod driving mechanism of CEPR nuclear power station |
| CN102507610A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Automatic ray inspection arm for circumferential weld seam of pipe body |
| CN204045215U (en) * | 2014-09-24 | 2014-12-24 | 中国核动力研究设计院 | The syndeton of reactor pressure vessel and main pipeline |
| CN204387574U (en) * | 2014-12-03 | 2015-06-10 | 中国核工业第五建设有限公司 | For the gamma-ray interior transillumination support of Large Diameter Pipeline |
| CN104833683A (en) * | 2015-05-13 | 2015-08-12 | 广东华泰检测科技有限公司 | Novel gamma ray detection device |
| CN205049494U (en) * | 2015-09-18 | 2016-02-24 | 甘肃蓝科石化高新装备股份有限公司 | Special frock of open -shelf sea water vaporizer angle welding ray detection |
| CN105784729A (en) * | 2016-03-03 | 2016-07-20 | 贵州航天乌江机电设备有限责任公司 | X-ray detection method and device for small-diameter drum longitudinal welds |
| CN106429918A (en) * | 2016-09-30 | 2017-02-22 | 中广核检测技术有限公司 | Double-rope hoisting mechanism of welding line ultrasonic inspection device of control rod drive mechanism |
| CN206906278U (en) * | 2017-05-09 | 2018-01-19 | 南京华宝工程检测有限公司 | γ source capsules road center exposure self-checking device |
| CN107796833A (en) * | 2017-11-30 | 2018-03-13 | 祖子舒 | Pipe welding line detecting X-ray exposure device and method |
| CN107965633A (en) * | 2017-11-21 | 2018-04-27 | 中广核检测技术有限公司 | Automatic testing system inside nuclear electric moment deformation cross section pipe |
| CN208125646U (en) * | 2018-04-25 | 2018-11-20 | 岭东核电有限公司 | A kind of nuclear power station valve attachment weld ray detection and location device |
| CN109115813A (en) * | 2018-08-31 | 2019-01-01 | 中广核检测技术有限公司 | Nuclear reactor vacuum chamber radiographic inspection system |
| CN208507203U (en) * | 2018-03-13 | 2019-02-15 | 中广核研究院有限公司 | A kind of claw device applied to control rod drive mechanism |
| CN110018185A (en) * | 2019-04-04 | 2019-07-16 | 岭澳核电有限公司 | Nuclear power station weld radiographic inspection center exposure device and radiographic inspection method |
-
2020
- 2020-11-27 CN CN202011361745.2A patent/CN112489837B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936642A (en) * | 1973-10-12 | 1976-02-03 | Compagnie Generale De Radiologie | X-ray film-handling arrangement for x-ray diagnostic apparatus |
| WO1988008151A1 (en) * | 1987-04-09 | 1988-10-20 | Eastman Kodak Company | Sheet-film cassette |
| CN102384939A (en) * | 2011-10-17 | 2012-03-21 | 中广核检测技术有限公司 | Method and apparatus for examining eddy current of control rod driving mechanism of CEPR nuclear power station |
| CN102507610A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Automatic ray inspection arm for circumferential weld seam of pipe body |
| CN204045215U (en) * | 2014-09-24 | 2014-12-24 | 中国核动力研究设计院 | The syndeton of reactor pressure vessel and main pipeline |
| CN204387574U (en) * | 2014-12-03 | 2015-06-10 | 中国核工业第五建设有限公司 | For the gamma-ray interior transillumination support of Large Diameter Pipeline |
| CN104833683A (en) * | 2015-05-13 | 2015-08-12 | 广东华泰检测科技有限公司 | Novel gamma ray detection device |
| CN205049494U (en) * | 2015-09-18 | 2016-02-24 | 甘肃蓝科石化高新装备股份有限公司 | Special frock of open -shelf sea water vaporizer angle welding ray detection |
| CN105784729A (en) * | 2016-03-03 | 2016-07-20 | 贵州航天乌江机电设备有限责任公司 | X-ray detection method and device for small-diameter drum longitudinal welds |
| CN106429918A (en) * | 2016-09-30 | 2017-02-22 | 中广核检测技术有限公司 | Double-rope hoisting mechanism of welding line ultrasonic inspection device of control rod drive mechanism |
| CN206906278U (en) * | 2017-05-09 | 2018-01-19 | 南京华宝工程检测有限公司 | γ source capsules road center exposure self-checking device |
| CN107965633A (en) * | 2017-11-21 | 2018-04-27 | 中广核检测技术有限公司 | Automatic testing system inside nuclear electric moment deformation cross section pipe |
| CN107796833A (en) * | 2017-11-30 | 2018-03-13 | 祖子舒 | Pipe welding line detecting X-ray exposure device and method |
| CN208507203U (en) * | 2018-03-13 | 2019-02-15 | 中广核研究院有限公司 | A kind of claw device applied to control rod drive mechanism |
| CN208125646U (en) * | 2018-04-25 | 2018-11-20 | 岭东核电有限公司 | A kind of nuclear power station valve attachment weld ray detection and location device |
| CN109115813A (en) * | 2018-08-31 | 2019-01-01 | 中广核检测技术有限公司 | Nuclear reactor vacuum chamber radiographic inspection system |
| CN110018185A (en) * | 2019-04-04 | 2019-07-16 | 岭澳核电有限公司 | Nuclear power station weld radiographic inspection center exposure device and radiographic inspection method |
Non-Patent Citations (3)
| Title |
|---|
| 段占峰;熊瑛;: "电子束焊环焊缝周向曝光技术的应用", no. 01, pages 16 - 18 * |
| 闫欣,卢秀波: "大型球罐γ射线照相布片", no. 09, pages 255 - 257 * |
| 魏绍明;刘顺;陈衡;汪双印;罗杰;: "核电站反应堆压力容器射线检验技术", no. 31, pages 152 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112489837B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3178687B2 (en) | Reactor integrated head package | |
| JP3121077B2 (en) | Core instrumentation equipment for pressurized water reactor | |
| JP6241984B2 (en) | Apparatus and method for removing an upper reactor structure from a reactor pressure vessel | |
| CN112489837A (en) | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism | |
| CN1041573C (en) | Low activated incore instrument | |
| JP3586469B2 (en) | Method of removing components located inside a reactor pressure vessel of a reactor installation | |
| JP2000206294A (en) | Method for bringing out large equipment | |
| JP6556692B2 (en) | Apparatus and method for inspecting reactor components in reactor core annulus, core spray and feedwater sparger region | |
| CN215179808U (en) | X-ray flaw detection system and fixing device for installing X-ray machine | |
| JP5681318B1 (en) | Method for dismantling a damaged reactor core | |
| JPH0862368A (en) | Carrying method at replacement of reactor pressure vessel and reactor internal structure, and reactor building | |
| WO2020013518A1 (en) | Method for decommissioning heavy water reactor facility | |
| JP3989246B2 (en) | How to install the reactor internals | |
| CN207425369U (en) | Nuclear power station radioactive water filter radiation shield device | |
| KR20090110398A (en) | Radiation shielding body | |
| CN107610580B (en) | Multifunctional nuclear power plant steam generator simulation body | |
| US4243484A (en) | Method and apparatus for use to exchange O-ring interposed between in-core housing and in-core flange in nuclear reactor | |
| CN110391031A (en) | Micro reactor discharge method and device for discharging | |
| CN218004406U (en) | Nuclear power station steel containment vessel radiographic inspection shielding device | |
| CN220651670U (en) | Ray filtering device | |
| JP3207803B2 (en) | Shielding cover for primary coolant circulation pump casing | |
| CN215722382U (en) | Camera protection device for nuclear power station | |
| CN218602119U (en) | Ray shielding device for pipeline detection | |
| RU2716002C1 (en) | Device for radiation and temperature monitoring of decommissioned uranium-graphite reactor | |
| CN109974768B (en) | Test frame and test method for performance test of whole satellite active load in normal sample stage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |