CN103871515A - Ultrasonic inspection tool for main pipeline of reactor pressure vessel - Google Patents
Ultrasonic inspection tool for main pipeline of reactor pressure vessel Download PDFInfo
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- CN103871515A CN103871515A CN201210550286.1A CN201210550286A CN103871515A CN 103871515 A CN103871515 A CN 103871515A CN 201210550286 A CN201210550286 A CN 201210550286A CN 103871515 A CN103871515 A CN 103871515A
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- pressure vessel
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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 belongs to the technical field of ultrasonic inspection for welding lines of a safety end of the main pipeline of the reactor pressure vessel in a nuclear power station, and specifically relates to an ultrasonic inspection tool for the main pipeline of the reactor pressure vessel. The ultrasonic inspection tool comprises the following devices: a frame, a hoisting turnover mechanism, a front stretching mechanism, a support centering mechanism, a linear motion shaft, a circling motion shaft, a sensing mechanism and a buoy, wherein the hoisting turnover mechanism is composed of a hoisting cup base and a hoisting pedestal by hinge connection; the frame main body is a cylindrical structure, the front end of the frame main body is connected with the hoisting turnover mechanism, and a centering rod is arranged at the rear part of the front end base surface; adapter axis location and adapter circumferential location are carried out through the sensing mechanism; the circling motion shaft is composed of a gear wheel and a gear ring in an engagement manner; the linear motion shaft is composed of a lead screw and a linear guide rail; the front stretching mechanism is composed of an air cylinder and a guide rod, and performs linear motion back and forth; the buoy is a conical structure; and the support centering mechanism is composed of three parts, and each part has consistent shape.
Description
Technical field
The invention belongs to nuclear power plant reactor pressure vessel main pipeline safe end welding line ultrasonic and check technical field, be specifically related to a kind of reactor pressure vessel main pipeline ultrasonic examination instrument.
Background technology
Reactor pressure vessel (reactor pressure vessel) is the closed container of settling nuclear reactor and bearing its huge operating pressure, also claim reactor vessel, it is the key equipment in pressurized-water reactor nuclear power plant, the feature such as have that manufacturing technology standard is high, difficulty is large and the cycle is long, and be non-exchange equipment, must guarantee that it is perfectly safe in lifetime reliably at nuclear power station for 40 years.After nuclear power station operation, the heat eliminating medium (water) in core one loop has had high radioactivity, high pollution, and implementing these inspections all needs aid to implement, and checks and needs long-range, robotization.
It is nuclear reactor one loop important component part that reactor pressure vessel is taken over, and takes over and is divided into water inlet and two kinds of adapters of water delivering orifice, takes over and pressure vessel welding, takes over and adopt safe end transition welding between main pipeline.Take over attachment weld and take over safe end weld seam according to checking enforcement of regulations inspection, guaranteeing nuclear safety.
Reactor pressure vessel check according between related specifications at regular intervals, examination scope has comprised reactor pressure vessel main pipeline, the main pipeline scope of examination has main pipeline safe end weld seam, main pipeline and pressure vessel attachment weld.Check main pipeline ultrasonic scan instrument, realize the ultrasonic examination of nuclear reactor pressure container main pipe welding seam.Reactor pressure vessel inspection is implemented during nuclear power station cold-refueling, supervision time window belongs to critical path at outage, the shortening of therefore trying one's best for the reactor pressure vessel supervision time considers that reactor pressure vessel main pipeline ultrasonic examination meeting implements separately simultaneously.Therefore need to develop reactor pressure vessel main pipeline ultrasonic examination instrument.
Above-mentioned nozzle inspection mainly contains two kinds of modes from internal implementation: one, adopts large-scale pressure vessel checking machine system to carry ultrasonic scan device and realizes inspection, as: the French IC MIS of company machine, the SUPREEM of US Westinghouse company, Spain TIME check system etc.; Such large component, can not independently implement, and consumes resource, takies critical path.Two, use the scanning instrument of independently taking over, install or Remote robotization is installed diving and entered to take over to realize and check by personnel's operation aid, take over ultrasonic scan instrument TENIS, the GOLD FISH of ABB AB as the SQUID of Westinghouse Electric diving scanning instrument, Spain's main pipeline and take over scanning instrument etc.Such equipment fitting operation inconvenience, especially power plant's operant level lifting, implementation process complexity.
Therefore, need a kind of small-sized reactor pressure vessel main pipeline ultrasonic examination instrument of development badly, meanwhile, avoid level lifting in operating process, and then simplify implementation process, improve operating efficiency.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of reactor pressure vessel main pipeline ultrasonic examination instrument is provided.
In order to realize this purpose, the technical scheme that the present invention takes is:
A kind of reactor pressure vessel main pipeline ultrasonic examination instrument, comprises with lower device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism, floating drum;
Lifting switching mechanism is connected through the hinge and form by lifting cup and lifting pedestal, in lifting pedestal side elasticity collision bead is set, and is used for locking to lift cup;
Frame main body is cylindrical-shaped structure, axially arranges successively front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, at front end basal plane rear portion, centering rod is set, and is connected in frame main body by installation base surface; Take over axis location and take over circumferential registration by sensing mechanism;
Circular motion axle is made up of gear and gear ring engagement, drives linear motion axis whipping; Its front end is connected with frame, and rear end is connected with linear motion axis; Support centering body Part I in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end is connected with circular motion axle, and rear end pedestal is connected with support centering body Part II;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end is connected with support centering body Part II, and rear end is connected with support centering body Part III, supports centering body Part III and is connected with floating drum; Floating drum is cone-shaped structure; Support centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on circular motion axle outside above, and Part II is arranged on rectilinear motion shaft rear end pedestal, and Part III is arranged on outside, anterior drawing mechanism rear end; Every part is all that three supporting legs 120 are spent equally distributed structure, and wherein, one is cylinder supports, and two other is fixed support; Support centering body Part III and floating drum all with the motion campaign of anterior drawing mechanism.
Further, a kind of reactor pressure vessel main pipeline ultrasonic examination instrument as above, wherein, centering rod length > connection pipe opening diameter.
Technical solution of the present invention is used in the Qinshan second phase, 3, No. 4 unit reactor pressure vessels checked, and has passed through technical identification.During the refueling outage of power station, can implement separately, not need to employ main equipment, realize the ultrasonic examination of Nuclear Power Station reactor pressure vessel main pipe welding seam and independently implement, check that response in time; And can be used in conjunction with and can reduce pressure vessel inspection and account for the heap time with large pressurized vessel inspection machine, shorten the pressure vessel supervision time.
Accompanying drawing explanation
Fig. 1 is reactor pressure vessel main pipeline ultrasonic examination instrument schematic diagram.
In figure: 1-lifts switching mechanism, 2-frame, 3-sensor, 4-centering rod, 5-supports centering body Part I, 6-circular motion axle, 7-linear motion axis, 8-supports centering body Part II, 9-floating drum, 10-supports centering body Part III.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is elaborated.
Technical solution of the present invention is used reactor pressure vessel main pipeline to be connected barrel location with pressure vessel: pressure vessel is connected barrel with main pipeline can determine both direction location, above-mentioned location has guaranteed ultrasonic examination POS INT end point, the validity of specified data.Checking tool is mainly two axle movement axle, realizes the ultrasonic examination of both direction: main pipeline is axial, main pipeline circumferencial direction, and ultrasonic examination scope is comprehensive, guarantees that ultrasonic examination data are comprehensive.Use reactor pressure vessel main pipeline ultrasonic examination instrument, in reactor pressure vessel checking process, reduced because checking reactor holding time, the economic benefit of raising.Buoyancy regulating device and hoisting mechanism that reactor pressure vessel main pipeline ultrasonic examination tool design is special, checking tool is under water in equilibrium state, water outlet is in lifting state, operating personnel have easily realized the inspection of checking tool and have implemented, reduce inspection risk, improved inspection security.
Specifically, as shown in Figure 1, a kind of reactor pressure vessel main pipeline of the present invention ultrasonic examination instrument, draws together with lower device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism, floating drum;
Lifting switching mechanism is connected through the hinge and form by lifting cup and lifting pedestal, in lifting pedestal side elasticity collision bead is set, and is used for locking to lift cup;
Frame main body is cylindrical-shaped structure, axially arranges successively front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, at front end basal plane rear portion, centering rod is set, and is connected in frame main body by installation base surface; Take over axis location and take over circumferential registration by sensing mechanism; Centering rod length > connection pipe opening diameter.
Circular motion axle is made up of gear and gear ring engagement, drives linear motion axis whipping; Its front end is connected with frame, and rear end is connected with linear motion axis; Support centering body Part I in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end is connected with circular motion axle, and rear end pedestal is connected with support centering body Part II;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end is connected with support centering body Part II, and rear end is connected with support centering body Part III, supports centering body Part III and is connected with floating drum; Floating drum is cone-shaped structure; The density of material that floating drum adopts is 0.01-0.5g/cm3.Support centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on circular motion axle outside above, and Part II is arranged on rectilinear motion shaft rear end pedestal, and Part III is arranged on outside, anterior drawing mechanism rear end; Every part is all that three supporting legs 120 are spent equally distributed structure, and wherein, one is cylinder supports, and two other is fixed support; Support centering body Part III and floating drum all with the motion campaign of anterior drawing mechanism.
Claims (2)
1. a reactor pressure vessel main pipeline ultrasonic examination instrument, is characterized in that: comprise with lower device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism, floating drum;
Lifting switching mechanism is connected through the hinge and form by lifting cup and lifting pedestal, in lifting pedestal side elasticity collision bead is set, and is used for locking to lift cup;
Frame main body is cylindrical-shaped structure, axially arranges successively front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, at front end basal plane rear portion, centering rod is set, and is connected in frame main body by installation base surface; Take over axis location and take over circumferential registration by sensing mechanism;
Circular motion axle is made up of gear and gear ring engagement, drives linear motion axis whipping; Its front end is connected with frame, and rear end is connected with linear motion axis; Support centering body Part I in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end is connected with circular motion axle, and rear end pedestal is connected with support centering body Part II;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end is connected with support centering body Part II, and rear end is connected with support centering body Part III, supports centering body Part III and is connected with floating drum; Floating drum is cone-shaped structure; Support centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on circular motion axle outside above, and Part II is arranged on rectilinear motion shaft rear end pedestal, and Part III is arranged on outside, anterior drawing mechanism rear end; Every part is all that three supporting legs 120 are spent equally distributed structure, and wherein, one is cylinder supports, and two other is fixed support; Support centering body Part III and floating drum all with the motion campaign of anterior drawing mechanism.
2. a kind of reactor pressure vessel main pipeline ultrasonic examination instrument as claimed in claim 1, is characterized in that: centering rod length > connection pipe opening diameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210550286.1A CN103871515B (en) | 2012-12-17 | 2012-12-17 | A kind of reactor pressure vessel main pipeline ultrasonic examination instrument |
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| CN201210550286.1A CN103871515B (en) | 2012-12-17 | 2012-12-17 | A kind of reactor pressure vessel main pipeline ultrasonic examination instrument |
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| CN103871515A true CN103871515A (en) | 2014-06-18 |
| CN103871515B CN103871515B (en) | 2016-06-15 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806939A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Pressure vessel adapter tube inner wall water immersion ultrasonic inspection device |
| CN109979616A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Open frame is independently unfolded in a kind of nuclear reactor pressure container |
| CN109975424A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of preceding surfaces externally and internally ultrasonic examination tool of adapter tube factory |
| CN109975423A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of adapter tube and safety end of nuclear reactor pressure vessel factory ultrasonic inspection apparatus |
| CN109975425A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of reactor pressure vessel adapter tube factory ultrasonic inspection apparatus |
| CN110412136A (en) * | 2019-08-02 | 2019-11-05 | 中广核检测技术有限公司 | Multi-pose adaptability big-diameter pipeline inspection body |
| CN110824020A (en) * | 2019-11-15 | 2020-02-21 | 中广核检测技术有限公司 | Adjustable-posture connecting pipe welding seam ultrasonic and eddy current scanning device and positioning method |
| CN114724736A (en) * | 2020-12-22 | 2022-07-08 | 核动力运行研究所 | Automatic overturning and positioning mechanism of pressure container inspection device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806939A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Pressure vessel adapter tube inner wall water immersion ultrasonic inspection device |
| CN109979616A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Open frame is independently unfolded in a kind of nuclear reactor pressure container |
| CN109975424A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of preceding surfaces externally and internally ultrasonic examination tool of adapter tube factory |
| CN109975423A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of adapter tube and safety end of nuclear reactor pressure vessel factory ultrasonic inspection apparatus |
| CN109975425A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of reactor pressure vessel adapter tube factory ultrasonic inspection apparatus |
| CN109975424B (en) * | 2017-12-27 | 2024-05-10 | 核动力运行研究所 | Ultrasonic inspection tool for inner and outer surfaces of connecting pipe before delivery |
| CN109975425B (en) * | 2017-12-27 | 2024-06-11 | 核动力运行研究所 | Delivery ultrasonic inspection device for reactor pressure vessel connecting pipe |
| CN109975423B (en) * | 2017-12-27 | 2024-06-11 | 核动力运行研究所 | Delivery ultrasonic inspection device for safety end of nuclear reactor pressure vessel connecting pipe |
| CN110412136A (en) * | 2019-08-02 | 2019-11-05 | 中广核检测技术有限公司 | Multi-pose adaptability big-diameter pipeline inspection body |
| CN110824020A (en) * | 2019-11-15 | 2020-02-21 | 中广核检测技术有限公司 | Adjustable-posture connecting pipe welding seam ultrasonic and eddy current scanning device and positioning method |
| CN114724736A (en) * | 2020-12-22 | 2022-07-08 | 核动力运行研究所 | Automatic overturning and positioning mechanism of pressure container inspection device |
| CN114724736B (en) * | 2020-12-22 | 2024-07-16 | 核动力运行研究所 | Automatic overturning and positioning mechanism of pressure vessel inspection device |
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| CN103871515B (en) | 2016-06-15 |
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