CN201886791U - Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer - Google Patents
Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer Download PDFInfo
- Publication number
- CN201886791U CN201886791U CN2010206387496U CN201020638749U CN201886791U CN 201886791 U CN201886791 U CN 201886791U CN 2010206387496 U CN2010206387496 U CN 2010206387496U CN 201020638749 U CN201020638749 U CN 201020638749U CN 201886791 U CN201886791 U CN 201886791U
- Authority
- CN
- China
- Prior art keywords
- positioning tool
- voltage stabilizer
- nuclear power
- special
- catheter
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model belongs to a positioning tool, in particular to the positioning tool for connecting pipe welding seam examination of loop system nondestructive examination of a nuclear power station, which comprises an end cover, wherein a catheter is sheathed in the middle of the end cover, a fine adjusting mechanism is arranged at the sheathing part of the catheter and the end cover, the catheter is in a hollow tubular structure, and a source conveying pipe can be inserted into the hollow tubular structure. The positioning tool disclosed by the utility model has the advantages that a manhole flange surface and a screw bolt hole are used as support platforms, the positioning precision of a radiological source is ensured through the manufacture precision, the positioning precision of the positioning tool is improved, the swinging of the special positioning tool in a voltage stabilizer is avoided through the rigid catheter, in addition, the whole special positioning tool can be fast installed and positioned, the installation of the whole special positioning tool does not exceeds 5 minutes, and the positioning tool can be used for carrying out once circumferential exposure, i.e. radiological examination on the connecting welding seams of a sealed head arranged on the voltage stabilizer, five connecting pipes and the manhole without any additional device and has a good positioning repetitiveness.
Description
Technical field
The utility model belongs to a kind of orientation tool, is specifically related to the orientation tool that a kind of adapter weld seam detection of nuclear power station one circuit system Non-Destructive Testing is used.
Background technology
In nuclear power station one circuit system, voltage stabilizer is to be used for stable and to regulate the visual plant of Main Coolant working pressure, and it can make Main Coolant avoid occurring hypertonia or abnormal conditions such as low excessively, to guarantee the safe operation of a circuit system.
Voltage stabilizer is a round barrel shape container, respectively is welded with a hemispherical head up and down, according to about more than 10 meters of the unusual height of piling power, nearly 3 meters of diameter.Voltage stabilizer connects by the fluctuation Guan Yuyi primary loop piping on low head, is welded with 5 adapters on the voltage stabilizer upper cover.5 of causes are taken over and fluctuation tubing matter is alloy steel, and connected pipeline is a stainless steel, and therefore a transition section is arranged at the attachment weld place, because of belonging to the welding of foreign material, so this class weld seam is easy to occur defective,, must carry out radioscopy termly according to the requirement of RS-EM standard.
According to the requirement of related specifications, reliability and repeatability in order to improve assay shorten the running time, must carry out radioscopy to adapter weld seam everywhere, must use special-purpose orientation tool and will finish radioscopy.When carrying out sensitivity of film, radiographic source must be positioned at upper cover centre of sphere place, and film cassette is fixed on the weld seam outside, adopts once the circumferential mode of exposure to finish the radioscopy of voltage stabilizer upper cover and 5 adapters and manhole weld seam.In order to improve the image quality of radiography film, higher requirement has been proposed for the bearing accuracy of specific purpose tool.
Summary of the invention
The purpose of this utility model is can improve the reliability of assay with repeatable, shortens the nuclear power plant voltage stabilizer upper cover of running time and takes over the special-purpose orientation tool of weld seam radioscopy.
The utility model is achieved in that the special-purpose orientation tool of nuclear power plant voltage stabilizer upper cover adapter weld seam radioscopy, and it comprises end cap, the place is socketed with conduit in the middle of the end cap, socket place at conduit and end cap is provided with micro-adjusting mechanism, and conduit is a hollow tubular structure, and defeated source capsule can insert wherein.
The profile of described conduit is " J " type.
Described end cap is provided with level meter.
The both sides of the edge punishment of described end cap is provided with handle.
The utility model has the advantages that, it by manhole flange face and bolt hole as support platform, rely on manufacturing accuracy to guarantee radiogenic bearing accuracy, improved the bearing accuracy (less than ± 3 millimeters) of orientation tool, during check, catheter head can guarantee to fail radiographic source position, source capsule end and be positioned in the scope of upper cover centre of sphere place ± 3mm; By the conduit that adopts the fixing motion of track base radiographic source is positioned at upper cover centre of sphere place, defeated source capsule can free in and out in conduit; Rigid conduit has been avoided the swing of special-purpose orientation tool in voltage stabilizer inside, and makes whole special-purpose orientation tool Fast Installation to locate, and the installation of whole special-purpose orientation tool is no more than 5 minutes; It need not any attachment device can carry out once circumferentially exposure to the attachment weld of voltage stabilizer upper cover and 5 adapters and manhole is radioscopy, and has good location repeatability.
Description of drawings
Fig. 1 is that nuclear power plant voltage stabilizer upper cover provided by the utility model is taken over the special-purpose orientation tool synoptic diagram of weld seam radioscopy;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 is that the C of Fig. 1 is to view.
Among the figure, 1 end cap, 2 conduits, 3 defeated source capsules, 4 level meters, 5 micro-adjusting mechanisms, 6 handles.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail:
As shown in Figure 1, the nuclear power plant voltage stabilizer upper cover is taken over the special-purpose orientation tool of weld seam radioscopy and is comprised end cap 1, conduit 2, level meter 4, micro-adjusting mechanism 5 and handle 6 several sections, wherein, end cap 1 is a disk-like structure, its place, both sides of the edge is fixed with handle 6 respectively, can conveniently carry out fitting operation to it, also be fixed with level meter 4 on the end cap 1, be used for measuring the levelness of end cap 1, the place is socketed with conduit 2 in the middle of the end cap 1, the profile of conduit 2 is the J type, picks out at the cover of conduit 2 and end cap 1 micro-adjusting mechanism 5 also is installed, and micro-adjusting mechanism 5 can carry out the requirement that use is satisfied in trickle adjustment to the horizontal and vertical position of conduit 2, micro-adjusting mechanism 5 can be the setting nut structure, by rotating the horizontal and vertical position that nut changes conduit, conduit 2 is hollow tubular structure, and defeated source capsule 3 can insert wherein and stretch out from its incision position.
Use-pattern of the present utility model is as follows:
Before installation, conduit 2 is fixed on the normal mounting position, will fail source capsule 3 and penetrate conduit 3 and defeated source capsule 3 ends are passed, and installs defeated source capsule 3 ends.During installation, two operators can lift orientation tool by handle, make end of conduit also send into the voltage stabilizer manhole downwards carefully; The bolt mounting holes that tool ends end is covered is aimed at voltage stabilizer manhole bolt hole, and erection bolt is tightened; It should be noted that: before finally tightening erection bolt, need to check the level meter on the end cap, under the qualified state of level indication, bolt is tightened, fixed.
Film cassette is fixed on the outside of the attachment weld of voltage stabilizer upper cover and 5 adapters and manhole, after all preliminary works are finished, radiographic source can be sent and adopted once the mode of circumferentially exposure to finish the radioscopy of voltage stabilizer upper cover and 5 adapters and manhole weld seam.After radioscopy finishes, need earlier radiographic source to be recovered in the machine of source, after environmental radiation dose rate test passes, successively radiography film and special-purpose orientation tool etc. is disassembled and be transported to the appointed place; Finish the darkroom of radiography film and handle and evaluation of result, so far, promptly finished the radioscopy of voltage stabilizer upper cover and 5 adapters and manhole weld seam.
Claims (4)
1. the nuclear power plant voltage stabilizer upper cover is taken over the special-purpose orientation tool of weld seam radioscopy, it is characterized in that: it comprises end cap (1), the place is socketed with conduit (2) in the middle of the end cap (1), socket place at conduit (2) and end cap (1) is provided with micro-adjusting mechanism (5), conduit (2) is a hollow tubular structure, and defeated source capsule (3) can insert wherein.
2. nuclear power plant voltage stabilizer upper cover as claimed in claim 1 is taken over the special-purpose orientation tool of weld seam radioscopy, and it is characterized in that: the profile of described conduit (2) is " J " type.
3. nuclear power plant voltage stabilizer upper cover as claimed in claim 1 is taken over the special-purpose orientation tool of weld seam radioscopy, and it is characterized in that: end cap (1) is provided with level meter (4).
4. nuclear power plant voltage stabilizer upper cover as claimed in claim 1 is taken over the special-purpose orientation tool of weld seam radioscopy, it is characterized in that: the both sides of the edge punishment of end cap (1) is provided with handle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387496U CN201886791U (en) | 2010-12-02 | 2010-12-02 | Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387496U CN201886791U (en) | 2010-12-02 | 2010-12-02 | Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886791U true CN201886791U (en) | 2011-06-29 |
Family
ID=44184339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206387496U Expired - Lifetime CN201886791U (en) | 2010-12-02 | 2010-12-02 | Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273117A (en) * | 2018-09-27 | 2019-01-25 | 中广核检测技术有限公司 | A kind of nuclear power plant voltage stabilizer ray inspection arrangement |
-
2010
- 2010-12-02 CN CN2010206387496U patent/CN201886791U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273117A (en) * | 2018-09-27 | 2019-01-25 | 中广核检测技术有限公司 | A kind of nuclear power plant voltage stabilizer ray inspection arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3151246B1 (en) | Nondestructive detection robot for pressure vessel of nuclear reactor, and detection method therefor | |
| CN103680648A (en) | Ultrasonic testing device for king bolt of reactor pressure vessel of nuclear power station | |
| CN106872499A (en) | Defect inspection device and method for grouting sleeve test piece | |
| CN104849346A (en) | Omega welding seam eddy current automatic checking device for CRDM (control rod driving mechanism) assembly | |
| CN1925062A (en) | Connector welding seam ray detection and location device for nuclear power station voltage regulator fluctuation pipe | |
| MY201882A (en) | Leakage control system for spent fuel cooling pool | |
| CN104008690A (en) | Reactor pressure vessel simulation test platform for nuclear power plant | |
| CN103817089A (en) | Automatic detection system and method for spherical fuel element fuel-free section | |
| CN201886791U (en) | Special positioning tool for welding seam radiological examination of sealed end connecting pipe arranged on nuclear power station voltage stabilizer | |
| KR101745699B1 (en) | A non-destructive inspection apparatus for turbine blades | |
| CN104979028B (en) | CEPR nuclear power plant control rod driving mechanism weld ultrasonic scanner positioning device | |
| CN101598682B (en) | Safety end welding line detector of adapter tube of nuclear reactor pressure vessel | |
| CN101598684A (en) | Welding line detector of adapter tube and safety end of nuclear reactor pressure vessel and localization method thereof | |
| CN201539696U (en) | Six-leg positioning mechanism in pipeline | |
| CN213239973U (en) | Positioning device for pipeline center flaw detection through plug | |
| CN103559920A (en) | Mounting device and mounting method for checking device of connection pipe welding line of steam generator | |
| CN203134244U (en) | Nuclear power station reactor pressure vessel simulation test platform | |
| CN201540746U (en) | Air bag drainage arrangement in the main pipe of the reactor pressure vessel | |
| CN202305435U (en) | Automatic radioscopy arm for circumferential weld joint of tube body | |
| CN109975424B (en) | Ultrasonic inspection tool for inner and outer surfaces of connecting pipe before delivery | |
| CN213121680U (en) | On-spot installation welding seam radiographic inspection positioner of spherical tank | |
| CN209674892U (en) | A kind of high temperature gas cooled reactor heat-transfer pipe check device | |
| CN208334283U (en) | A kind of probe mechanism of reactor pressure vessel kingbolt ultrasonic inspection apparatus | |
| CN201215549Y (en) | Angle indicating device for directed X ray flaw detection machine | |
| CN206649905U (en) | A kind of gusseted device of fast leveling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |