CN201936625U - Ultrasonic examination probe composite structure inside pipe fitting - Google Patents
Ultrasonic examination probe composite structure inside pipe fitting Download PDFInfo
- Publication number
- CN201936625U CN201936625U CN2010206594829U CN201020659482U CN201936625U CN 201936625 U CN201936625 U CN 201936625U CN 2010206594829 U CN2010206594829 U CN 2010206594829U CN 201020659482 U CN201020659482 U CN 201020659482U CN 201936625 U CN201936625 U CN 201936625U
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- unitized construction
- ultrasonic
- probe
- composite structure
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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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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to an automatic ultrasonic non-wear detecting device for a pressure vessel top cover penetrating member and other pipe fittings in a nuclear power station reactor, concretely to an ultrasonic examination probe composite structure inside a pipe fitting, which comprises a housing; a top cover plate is arranged on the top of the housing; a composite structure body is disposed inside the housing; a support is arranged between the composite structure body and the top cover plate; a small camera is disposed in the center of the support; a push plate is disposed in a cylindrical cavity on the upper portion of the composite structure body; a set of ultrasonic probes are disposed on the push plate; a piston is disposed on the composite structure body at a central corresponding position of the push plate; and an air passage is communicated in the middle of the piston. The utility model has the advantage that four ultrasonic probe body mounting structures are disposed on the ultrasonic probe composite structure body; four probe bodies can be hidden in the composite structure body and driven by the cylinder structure to expose a proper portion. The ultrasonic examination probe composite structure inside the pipe fitting enables the flexible movement of the ultrasonic probe and the stable coupling of the ultrasonic wave and has the functions of lighting and image pick-up.
Description
Technical field
The utility model belongs to nuclear power plant reactor pressure vessels top cover penetration piece and other pipe fitting automatic ultrasonic the cannot-harm-detection device, is specifically related to the inner ultrasonic examination probe of a kind of pipe fitting composite set.
Background technology
Top cover of reactor pressure vessel is internal diameter SR890mm, the hemisphere of wall thickness 157mm, the top up, as a mouth down the pot.On top cover, run through many penetration pieces are installed, penetration piece internal diameter Φ 70mm, wall thickness 17.5mm, its underpart welds together by J type weld seam and top cover inwall, constitutes main system pressure boundary, nuclear island one loop.Top cover penetration piece inside holds the control rod of controlling reactor operation, also is simultaneously the passage of control rod operation.
Radiating medium will take place and leak if the penetrability crack in top cover penetration piece J type weld seam, and influences the normal operation of control rod drive mechanisms (CRD).According to the experience feedback of the multinational nuclear power station of Europe, the United States, must implement Ultrasonic Detection to J type weld seam, the penetrability crack appears with prevention.
Because top cover top and penetration piece outside have many fixed sturctures to stop, can not implement Ultrasonic Detection.Close on the top cover inwall of penetration piece and all implemented grinder buffing, surperficial utmost point out-of-flatness also is difficult to carry out Ultrasonic Detection at this position.Top cover inner radiation dosage is very high, forbids in personnel go into.Therefore, must implement automatic ultrasonic to J type weld seam from penetration piece inside detects.
Detect the crackle of most different orientations in J type weld seam and the neighborhood, must use a plurality of dissimilar ultrasonic inspection probes.If a probe is only used in each detection, to change detection probe so and not only prolong detection time at double, and the detection probe penetration piece of frequently coming in and going out, the plant equipment reactor lid of frequently coming in and going out must increase the possibility of damaging tested equipment and checkout facility.Therefore, must realize the disposable inspection of carrying out whole detection probe simultaneously in the actual detected, satisfy this technical requirement, must use special-purpose ultrasonic probe unitized construction.
External big detection company as French Fa Matong etc., can implement top cover penetration piece J type weld seam automatic ultrasonic to detect, but once can only implement the detection of two probes simultaneously, can not satisfy the requirement of China's nuclear power station to this detection.
Summary of the invention
The purpose of this utility model provides a kind of inner ultrasonic examination probe of the pipe fitting unitized construction that can carry out the automatic ultrasonic detection to top cover penetration piece J type weld seam.
The utility model is to realize like this, the inner ultrasonic examination probe of pipe fitting unitized construction, it comprises housing, the top of housing is provided with top blind flange, the inside of housing is provided with the unitized construction body, the unitized construction body is fixedlyed connected with lower part of frame, be provided with support between unitized construction body and the top blind flange, the place is provided with the small-sized image pickup head in the middle of the support, the peripheral frame of small-sized image pickup head is provided with light emitting diode, be provided with push pedal in the cylindrical cavity on unitized construction body top, the upper and lower side of push pedal is respectively equipped with stage clip and location set screw, push pedal is provided with a cover ultrasonic probe, middle corresponding position with push pedal on the unitized construction body is provided with piston, the centre of piston communicates with gas circuit, be provided with push pedal in the cylindrical cavity of unitized construction body bottom, the upper and lower side of push pedal is respectively equipped with stage clip and location set screw, push pedal has been provided with a cover ultrasonic probe, middle corresponding position with push pedal on the unitized construction body is provided with piston, the place communicates with gas circuit in the middle of the piston, the cavity place of unitized construction body interior also is provided with water pipe, oral siphon joint on the location-plate of water pipe and the bottom that is positioned at the unitized construction body is connected, water pipe is connected with threeway, and threeway is connected with two arms.
Between the inner cover plate of described pipe fitting the glass baffle plate is installed, is lined with the O RunddichtringO between glass baffle plate and the top blind flange.
On described piston and the piston O-ring seal is housed.
The utility model has the advantages that, 4 ultrasonic probe mounting structures are set on ultrasonic probe unitized construction body, equipped 1 sonde body in each mounting structure, therefore, on the unitized construction body 4 sonde bodies can be installed simultaneously, realize that 4 are popped one's head in the physical efficiencys disappearance within the unitized construction body, can expose an amount of part again under air cylinder structure drives.4 miniature pneumatic structures such as cover cylinder, air flue and piston are set on the unitized construction body, every nested structure can drive 1 ultrasonic probe body, therefore, unitized construction can drive whole 4 sonde bodies simultaneously, realizes that 4 sonde bodies radially steadily skid off the ultrasonic probe unitized construction simultaneously.On the unitized construction body of each sonde body both sides, respectively design 1 cover stage clip assembling, location and adjustment structure, distribute axisymmetricly, can realize that under the elastic force effect sonde body radially steadily is returned in the unitized construction.Each ultrasonic probe unitized construction is supporting to be provided with 4 special-purpose ultrasonic probe bodies, all is connected with cylinder piston structure spherical in shape, with the stage clip socket.Each probe physical efficiency is installed 2 probes.In air pressure and elastic force under the effect, 8 ultrasonic probes in 4 dedicated probe bodies can both flexible turnover, playback and with the intact stable applying of penetration piece inwall.Be provided with 1 small-sized image pickup head assembly structure, isolate fully, run through with signal wire and power lead access structure with water route and gas circuit on the unitized construction body.The camera setting height(from bottom) is adjustable, and symmetry is installed 8 light emitting diodes around it.Light hole is installed light transmissive material protection camera and diode.This structure can realize the functions such as installation, adjusting, waterproof, illumination and shooting of camera.Gas circuit on the unitized construction body and 4 air cylinder structure perforations, water route and 4 ultrasonic probe bodies connect, and signal wire links to each other with a camera with 8 ultrasonic probes respectively, and power lead links to each other with light emitting diode with camera.These structures and said structure are united use can realize functions such as ultrasonic probe compliant motion, the stable coupling of ultrasound wave and illumination shooting.
Description of drawings
Fig. 1 is the inner ultrasonic examination probe of a pipe fitting provided by the utility model unitized construction synoptic diagram;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is that the A-A of Fig. 1 is to cut-open view;
Fig. 4 is the practical application figure of the inner ultrasonic examination probe of pipe fitting provided by the utility model unitized construction.
Among the figure, 1 location-plate, 2 unitized construction bodies, 3 lower floor's sonde bodies, 4 upper strata sonde bodies, 5 small-sized image pickup heads, 6 O RunddichtringOs, 7 top blind flange, 8 light emitting diodes, 9 water pipes and three-way connection, 10 oral siphon joints, 11 power leads/signal wire socket, 12 go into gas-tpe fitting, 13 pistons, 14 stage clips, 15 location set screw, 16 housings, 17 supports, 18 glass baffle plates, 19 push pedals, 20 gas circuits, 21 penetration pieces, 22 J type weld seams, 23 pressure vessels top covers, 24 ultrasonic examinations probe unitized construction, 31 push pedals, 32 stage clips, 33 location set screw, 34 pistons, 35 water pipes, 36 O-ring seals.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail:
As shown in Figure 1, it comprises housing 16 cylindraceous the inner ultrasonic examination probe of pipe fitting unitized construction, the top of housing 16 is fixedly connected with top blind flange 7 by screw thread, the internal sleeve of housing 16 is equipped with unitized construction body 2, unitized construction body 2 is fixedlyed connected by screw thread with the bottom of housing 16, unitized construction body 2 is for having the stent-like structure of a plurality of cylindrical cavities, the support 17 of stepped empty tube shape is installed between unitized construction body 2 and the top blind flange 7, between support 17 and the top blind flange 7 glass baffle plate 18 is installed, be lined with O RunddichtringO 6 between glass baffle plate 18 and the top blind flange 7, the intermediate hollow place of support 17 is equipped with small-sized image pickup head 5, symmetry is installed a plurality of light emitting diodes 8 on the peripheral frame 17 of small-sized image pickup head 5, two push pedals 19 are installed in the toroidal cavity on unitized construction body 2 tops, the upper and lower side of two push pedals 19 is separately installed with stage clip 14 and location set screw 15, push pedal 19 can be withstood on the unitized construction body 2 by stage clip 14 and location set screw 15, one cover ultrasonic probe all is installed in every push pedal 19, one cover ultrasonic probe comprises two sonde bodies, middle corresponding position with push pedal 19 on the unitized construction body 2 is equipped with piston 13, the place communicates with gas circuit 20 in the middle of the piston 13, two push pedals 31 are installed in the toroidal cavity of unitized construction body 2 bottoms, the upper and lower side of two push pedals 31 is separately installed with stage clip 32 and location set screw 33, push pedal 31 can be withstood on the unitized construction body 2 by stage clip 32 and location set screw 33, one cover ultrasonic probe all is installed in every push pedal 31, middle corresponding position with push pedal 31 on the unitized construction body 2 is equipped with piston 34, on each piston 34 O-ring seal 36 is housed, the place communicates with gas circuit 20 in the middle of the piston 34, the cavity place of unitized construction body 2 inside also is equipped with water pipe 35, oral siphon joint 10 on the location-plate 1 of water pipe 35 and the bottom that is positioned at unitized construction body 2 is connected, water pipe 35 is connected with threeway 9, and two arms that threeway 9 is told insert two cover ultrasonic probes up and down respectively.
Automatically detecting requires the ultrasonic probe unitized construction must enter penetration piece inside fully; All detection probe energy while and intact applyings of penetration piece inwall; During probe turnover unitized construction, can not damage probe self, unitized construction and penetration piece inwall; Illumination need be installed at the unitized construction top and camera head assists to observe and the location; Ultrasonic Detection needs water coupling ultrasonic ripple, and unitized construction inside is provided with water circuit system.
Design feature of the present utility model is as follows: miniature pneumatic structures such as cylinder, air flue and piston are set on the unitized construction body; On the unitized construction body of each sonde body both sides stage clip assembling, location and adjustment structure are set; Be provided for installing the dedicated probe body of single probe; Small-sized image pickup head and light emitting diode assembly structure are set on the unitized construction body; Suitable gas circuit, water route and signal wire and power lead access structure are set on the unitized construction body.In sonde body unitized construction upper part of body, be provided with the structure that light emitting diode and camera are installed.A camera is placed in the middle, and 8 light emitting diodes are symmetrically distributed around it.Bottom-up design successively has the top blind flange of light-passing board, O type sealing ring and nylon material on the top of camera.At the middle part of unitized construction body 4 structures that sonde body is installed are set, divide upper and lower two-layer layout, press two sonde body structures of central shaft symmetrical distribution for every layer, two upper and lower layer sonde body structures of homonymy are axially aligned.A sonde body is installed in each sonde body mounting structure, and sonde body bottom centre contacts with cylinder piston, and under gas pressure, piston promotes sonde body and produces radially centrifugal motion.Two support strip that are centrosymmetric of sonde body bottom design contact with stage clip, and stage clip other end interpolation location set screw is regulated elastic force by the radial position of set screw, make sonde body produce the radial centripetal motion.All design the water pipe and the signal wire communicating structure that are communicated with sonde body on each sonde body mounting structure.Between two-layer sonde body mounting structure and other relevant position of unitized construction body, be provided with the gas circuit structure, signal wire and the water pipe mounting structure that only are communicated with and the power supply/signal wire mounting structure of light emitting diode and camera with cylinder.A limiting plate is installed in unitized construction body lower end, and at limiting plate the quick connector of tracheae, water pipe, power lead and signal wire has been installed, totally 19.
The course of work of the present utility model is as follows:
When go into tracheae connector 12 by tracheae with after air compressor machine is communicated with, open the air circuit breaker valve, then pressure gas acts on 4 cylinder pistons 13, promote piston radially centrifugal motion takes place, and piston promotes sonde body shell 3,4 radially centrifugal motion taking place, and shifts out part sonde body shell 3,4.Because respectively there is an outstanding support bar top and bottom of sonde body shell 3,4, so cylinder piston 13 promotes support bars indirectly and produces radially centrifugal motion, simultaneously, and by support bar compression press spring 14.
When laying down the air pressure of cylinder, stage clip 14 acting in opposition support bars make the motion of support bar generation radial centripetal, not only regain sonde body shell 3,4, also make cylinder piston 18 return zero-bit.
By the control inspection machine ultrasonic probe unitized construction is positioned at and is examined penetration piece below, start illumination and camera system on the unitized construction, confirm that by monitoring picture unitized construction is coaxial with penetration piece, start inspection machine lifting/scanning axle then, the probe unitized construction is positioned at the inspection area (see figure 4) of penetration piece inside.
Setting completed in the complete inspection parameter, after ultrasonic testing system is in detected state, starts the coupling water conveying system, reclaims normal by the conveying of retracting device affirmation coupling water.
Start pneumatic system and drive whole 8 detection probe, and be fitted in the penetration piece inside surface to the motion of unitized construction outer radial.Check one by one and confirm that 8 detection probe all are in normal ultrasonic signal emission and receive status.
Start the driving mechanism of ultrasonic probe unitized construction rotation/stepping, respectively clockwise and rotate counterclockwise about 365 ° of unitized construction (at least greater than 362 °), the affirmation rotational motion mechanism is in normal condition.
Implement self-verifying by default self-verifying track.
Inspection finishes, and at first closes ultrasonic testing system.Control pneumatic system then and lay down the pressure of cylinder in the probe unitized construction, regain whole detection probe.Under the assistance of shooting and monitoring system, the probe unitized construction is reduced to the below of penetration piece.Through confirm to be positioned at really the penetration piece below there is no any unusual after, the control inspection machine unitized construction of will popping one's head in is positioned at the below of next tested penetration piece, finishes self-verifying according to identical step.
When last penetration piece inspection finishes and after all probe is all return playback, increases the discharge pressure of coupling water, by coupling water directly flushing and oppositely spattering after the bounce-back of penetration piece inwall wash, the probe unitized construction is implemented to clean decontamination.
Clean decontamination after about 5 minutes, reduce to the below of penetration piece, finish ultrasonic self-verifying according to the identical operations unitized construction of will popping one's head in.
Claims (3)
1. the inner ultrasonic examination probe of pipe fitting unitized construction, it is characterized in that: it comprises housing (16), the top of housing (16) is provided with top blind flange (7), the inside of housing (16) is provided with unitized construction body (2), unitized construction body (2) is fixedlyed connected with the bottom of housing (16), be provided with support (17) between unitized construction body (2) and the top blind flange (7), the place is provided with small-sized image pickup head (5) in the middle of the support (17), the peripheral frame (17) of small-sized image pickup head (5) is provided with light emitting diode (8), be provided with push pedal (19) in the cylindrical cavity on unitized construction body (2) top, the upper and lower side of push pedal (19) is respectively equipped with stage clip (14) and location set screw (15), push pedal (19) is provided with a cover ultrasonic probe, unitized construction body (2) is gone up and the middle corresponding position of push pedal (19) is provided with piston (13), the centre of piston (13) communicates with gas circuit (20), be provided with push pedal (31) in the cylindrical cavity of unitized construction body (2) bottom, the upper and lower side of push pedal (31) is respectively equipped with stage clip (32) and location set screw (33), push pedal (31) has been provided with a cover ultrasonic probe, unitized construction body (2) is gone up and the middle corresponding position of push pedal (31) is provided with piston (34), the place communicates with gas circuit (20) in the middle of the piston (34), the inner cavity place of unitized construction body (2) also is provided with water pipe (35), oral siphon joint (10) on the location-plate (1) of water pipe (35) and the bottom that is positioned at unitized construction body (2) is connected, water pipe (35) is connected with threeway (9), and threeway (9) is connected with two arms.
2. the inner ultrasonic examination probe of pipe fitting as claimed in claim 1 unitized construction is characterized in that: between the inner cover plate of described pipe fitting (7) glass baffle plate (18) is installed, is lined with O RunddichtringO (6) between glass baffle plate (18) and the top blind flange (7).
3. the inner ultrasonic examination probe of pipe fitting as claimed in claim 1 unitized construction is characterized in that: on described piston (34) and the piston (13) O-ring seal (36) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206594829U CN201936625U (en) | 2010-12-14 | 2010-12-14 | Ultrasonic examination probe composite structure inside pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206594829U CN201936625U (en) | 2010-12-14 | 2010-12-14 | Ultrasonic examination probe composite structure inside pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936625U true CN201936625U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206594829U Expired - Lifetime CN201936625U (en) | 2010-12-14 | 2010-12-14 | Ultrasonic examination probe composite structure inside pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936625U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520072A (en) * | 2011-12-15 | 2012-06-27 | 核动力运行研究所 | Ultrasonic detection probe tray of small-diameter pipeline |
| CN102568628A (en) * | 2010-12-14 | 2012-07-11 | 核动力运行研究所 | Ultrasonic detection probe combined structure in pipe fitting |
| CN103187111A (en) * | 2011-12-28 | 2013-07-03 | 核动力运行研究所 | Ultrasonic testing tool for welding line of safety injection pipe of pressure vessel in nuclear power station |
| CN103943155A (en) * | 2014-05-09 | 2014-07-23 | 常州市常超电子研究所有限公司 | Flaw detection device for inner hole of heat transfer pipe of nuclear-power evaporator |
| CN104992734A (en) * | 2015-05-22 | 2015-10-21 | 中广核检测技术有限公司 | Reactor pressure vessel bottom head penetration piece outer wall inspection apparatus |
| CN109976322A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of automatic positioning method for realizing carrier loader in restricted clearance |
| CN111194469A (en) * | 2017-06-23 | 2020-05-22 | 坎杜能源公司 | Inspection tool and method for nuclear reactor fuel piping assembly |
-
2010
- 2010-12-14 CN CN2010206594829U patent/CN201936625U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568628A (en) * | 2010-12-14 | 2012-07-11 | 核动力运行研究所 | Ultrasonic detection probe combined structure in pipe fitting |
| CN102568628B (en) * | 2010-12-14 | 2014-11-05 | 核动力运行研究所 | Ultrasonic detection probe combined structure in pipe fitting |
| CN102520072A (en) * | 2011-12-15 | 2012-06-27 | 核动力运行研究所 | Ultrasonic detection probe tray of small-diameter pipeline |
| CN103187111A (en) * | 2011-12-28 | 2013-07-03 | 核动力运行研究所 | Ultrasonic testing tool for welding line of safety injection pipe of pressure vessel in nuclear power station |
| CN103187111B (en) * | 2011-12-28 | 2015-08-26 | 核动力运行研究所 | A kind of nuclear plant pressure vessels peace note pipe welding line ultrasonic checking tool |
| CN103943155A (en) * | 2014-05-09 | 2014-07-23 | 常州市常超电子研究所有限公司 | Flaw detection device for inner hole of heat transfer pipe of nuclear-power evaporator |
| CN104992734A (en) * | 2015-05-22 | 2015-10-21 | 中广核检测技术有限公司 | Reactor pressure vessel bottom head penetration piece outer wall inspection apparatus |
| CN111194469A (en) * | 2017-06-23 | 2020-05-22 | 坎杜能源公司 | Inspection tool and method for nuclear reactor fuel piping assembly |
| CN111194469B (en) * | 2017-06-23 | 2023-03-14 | 坎杜能源公司 | Inspection tool and method for nuclear reactor fuel piping assembly |
| CN109976322A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of automatic positioning method for realizing carrier loader in restricted clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110817 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |