CN103871515B - A kind of reactor pressure vessel main pipeline ultrasonic examination instrument - Google Patents
A kind of reactor pressure vessel main pipeline ultrasonic examination instrument Download PDFInfo
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- CN103871515B CN103871515B CN201210550286.1A CN201210550286A CN103871515B CN 103871515 B CN103871515 B CN 103871515B CN 201210550286 A CN201210550286 A CN 201210550286A CN 103871515 B CN103871515 B CN 103871515B
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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 nuclear power plant reactor pressure vessel main pipeline safe end welding line ultrasonic Examined effect field, be specifically related to a kind of reactor pressure vessel main pipeline ultrasonic examination instrument. Including following 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 by lifting cup and lifting pedestal is connected through the hinge and forms; Frame main body is cylindrical-shaped structure, and front end is connected with lifting switching mechanism, arranges centering rod at basal plane rear portion, front end; Axis location and adapter circumferential registration is taken over by sensing mechanism; Circular motion axle is engaged by gear and gear ring and forms; Linear motion axis is made up of screw mandrel and line slideway; Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Floating drum is cone-shaped structure; Supporting centering body and be divided into three parts, every partial shape is consistent.
Description
Technical field
The invention belongs to nuclear power plant reactor pressure vessel main pipeline safe end welding line ultrasonic Examined effect field, be specifically related to a kind of reactor pressure vessel main pipeline ultrasonic examination instrument.
Background technology
Reactor pressure vessel (reactorpressurevessel) is to dispose nuclear reactor and bear the hermetic container of its huge operating pressure, also referred to as reactor vessel, it it is the key equipment in pressurized-water reactor nuclear power plant, have that manufacturing technology standard is high, difficulty big and the feature such as cycle length, and be non-exchange equipment, it is necessary to assure it is perfectly safe in lifetime reliably at nuclear power station for 40 years. After running due to nuclear power station, the cooling medium (water) in core primary Ioops is provided with high radioactivity, high pollution, implements these and checks that being required for aid implements, and checks and needs long-range, automatization.
Reactor pressure vessel adapter is nuclear reactor primary Ioops important component part, and adapter is divided into water inlet and outlet two kinds adapter, and adapter is welded with pressure vessel, takes over and adopts safe end graded seal between main pipeline. Adapter attachment weld and adapter safe end weld seam are according to checking enforcement of regulations inspection, it is ensured that nuclear safety.
Reactor pressure vessel check according between related specifications at regular intervals, examination scope includes reactor pressure vessel main pipeline, and 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, it is achieved to nuclear reactor pressure container main pipe welding seam ultrasonic examination. Reactor pressure vessel checks to be implemented during nuclear power station cold-refueling, review time window belongs to critical path during planned outage, therefore for the shortening that the reactor pressure vessel review time tries one's best, simultaneously taking account of reactor pressure vessel main pipeline ultrasonic examination can individually implement. It is thus desirable to develop reactor pressure vessel main pipeline ultrasonic examination instrument.
Above-mentioned nozzle inspection mainly has two ways from internal implementation: one, adopts large-scale pressure vessel checking machine system to carry ultrasonic scan device and realizes checking, as: IC company of France MIS machine, US Westinghouse company SUPREEM, Spain TIME inspection system etc.;Such large component, it is impossible to independent enforcement, consumes resource, takies critical path. Two, independent adapter scanning instrument is used, installed by human users's aid or Remote automatization installs to dive under water to enter to take over and realizes checking, such as Westinghouse Electric SQUID diving scanning instrument, Spain main pipeline adapter ultrasonic scan instrument TENIS, ABB AB GOLDFISH adapter scanning instrument etc. Such equipment installs inconvenient operation, especially the lifting of power plant's operation level, and implementation process is complicated.
Therefore, need a kind of small-sized reactor pressure vessel main pipeline ultrasonic examination instrument of development badly, simultaneously, it is to avoid level lifting in operation, and then simplify implementation process, improve operating efficiency.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of reactor pressure vessel main pipeline ultrasonic examination instrument.
In order to realize this purpose, the present invention adopts the technical scheme that:
A kind of reactor pressure vessel main pipeline ultrasonic examination instrument, including following device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism, floating drum;
Lifting switching mechanism, by lifting cup and lifting pedestal is connected through the hinge and form, arranges elastic collision bead in lifting pedestal side, for locking lifting cup;
Frame main body is cylindrical-shaped structure, is axially sequentially arranged front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, arranges centering rod at basal plane rear portion, front end, is connected in frame main body by installation base surface; Axis location and adapter circumferential registration is taken over by sensing mechanism;
Circular motion axle is engaged by gear and gear ring and forms, and drives linear motion axis whipping; Its front end and frame connect, and rear end and linear motion axis connect; Centering body Part I is supported in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end and circular motion axle connect, and rear end pedestal and support centering body Part II connect;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end and support centering body Part II connect, and rear end and support centering body Part III connect, and support centering body Part III and floating drum connect; Floating drum is cone-shaped structure; Supporting centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on outside circular motion axle, 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 120 degree of equally distributed structures of three supporting legs, and wherein, one is cylinder supports, and two other supports for fixing; Support centering body Part III and floating drum all moves with the motion 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 uses during in the Qinshan second phase, 3, No. 4 unit reactor pressure vessels check, and has passed through technical identification. Can individually implement during the refueling outage of power station, it is not necessary to employ main equipment, it is achieved Nuclear Power Station reactor pressure vessel main pipe welding seam ultrasonic examination is independently implemented, check that response is in time; And can check that machine accounts for the heap time with the use of reducing pressure vessel inspection with large pressurized vessel, shorten the pressure vessel review 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, and 5-supports centering body Part I, 6-circular motion axle, 7-linear motion axis, and 8-supports centering body Part II, 9-floating drum, and 10-supports centering body Part III.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail.
Technical solution of the present invention uses reactor pressure vessel main pipeline to be connected barrel location with pressure vessel: pressure vessel is connected barrel and may determine that both direction positions with main pipeline, above-mentioned position assurance ultrasonic examination POS INT end point, it is determined that the effectiveness of data. Checking tool is mainly two axle movement axle, it is achieved the ultrasonic examination of both direction: main pipeline is axial, main pipeline circumferencial direction, and ultrasonic examination scope is comprehensive, it is ensured that ultrasound examination data is comprehensive. Use reactor pressure vessel main pipeline ultrasonic examination instrument, in reactor pressure vessel checking process, decrease because checking reactor holding time, the economic benefit of raising. Buoyancy regulating device that reactor pressure vessel main pipeline ultrasonic examination tool design is special and hoisting mechanism, checking tool is in poised state under water, water outlet is in lifting state, operator easily achieve the inspection of checking tool and implement, reduce inspection risks, improve inspection safety.
Specifically, as shown in Figure 1, one reactor pressure vessel main pipeline ultrasonic examination instrument of the present invention, including following device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism, floating drum;
Lifting switching mechanism, by lifting cup and lifting pedestal is connected through the hinge and form, arranges elastic collision bead in lifting pedestal side, for locking lifting cup;
Frame main body is cylindrical-shaped structure, is axially sequentially arranged front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, arranges centering rod at basal plane rear portion, front end, is connected in frame main body by installation base surface; Axis location and adapter circumferential registration is taken over by sensing mechanism; Centering rod length > connection pipe opening diameter.
Circular motion axle is engaged by gear and gear ring and forms, and drives linear motion axis whipping; Its front end and frame connect, and rear end and linear motion axis connect; Centering body Part I is supported in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end and circular motion axle connect, and rear end pedestal and support centering body Part II connect;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end and support centering body Part II connect, and rear end and support centering body Part III connect, and support centering body Part III and floating drum connect; Floating drum is cone-shaped structure; The density of material that floating drum adopts is 0.01-0.5g/cm3. Supporting centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on outside circular motion axle, 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 120 degree of equally distributed structures of three supporting legs, and wherein, one is cylinder supports, and two other supports for fixing; Support centering body Part III and floating drum all moves with the motion of anterior drawing mechanism.
Claims (3)
1. a reactor pressure vessel main pipeline ultrasonic examination instrument, it is characterised in that: include following device: frame, lifting switching mechanism, anterior drawing mechanism, support centering body, linear motion axis, circular motion axle, sensing mechanism and floating drum;
Lifting switching mechanism, by lifting cup and lifting pedestal is connected through the hinge and forms, arranges elastic collision bead in lifting pedestal side, is used for locking lifting cup;
Frame is cylindrical-shaped structure, is axially sequentially arranged front end basal plane, centering rod and sensing mechanism along it; Front end basal plane is connected with lifting switching mechanism, arranges centering rod at basal plane rear portion, front end, and centering rod is connected in frame by installation base surface; Frame takes over axis location and adapter circumferential registration by sensing mechanism;
Circular motion axle is engaged by gear and gear ring and forms, and drives linear motion axis whipping; Its front end and frame connect, and rear end and linear motion axis connect; Centering body Part I is supported in circular motion axle arranged outside;
Linear motion axis is made up of screw mandrel and line slideway, and front end and circular motion axle connect, and rear end pedestal and support centering body Part II connect;
Anterior drawing mechanism is made up of cylinder and guide rod, carries out straight line and seesaws; Its front end and support centering body Part II connect, and rear end and support centering body Part III connect, and support centering body Part III and floating drum connect; Floating drum is cone-shaped structure; Supporting centering body and be divided into three parts, every partial shape is consistent, and Part I is arranged on outside circular motion axle, 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 120 degree of equally distributed structures of three supporting legs, and wherein, one is cylinder supports, and two other supports for fixing; Support centering body Part III and floating drum all moves with the motion of anterior drawing mechanism.
2. a kind of reactor pressure vessel main pipeline ultrasonic examination instrument as claimed in claim 1, it is characterised in that: the density of material that floating drum adopts is 0.01-0.5g/cm3。
3. a kind of reactor pressure vessel main pipeline ultrasonic examination instrument as claimed in claim 1, it is characterised 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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| 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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| CN103871515A CN103871515A (en) | 2014-06-18 |
| CN103871515B true CN103871515B (en) | 2016-06-15 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806939B (en) * | 2014-12-30 | 2019-05-17 | 中核武汉核电运行技术股份有限公司 | A kind of Nozzle Zone of Vessels inner wall water logging ultrasonic inspection apparatus |
| 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 |
| 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 |
| 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 |
| 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 |
| CN110412136B (en) * | 2019-08-02 | 2022-03-29 | 中广核检测技术有限公司 | Multi-posture adaptable large-pipe-diameter pipeline inspection mechanism |
| CN110824020B (en) * | 2019-11-15 | 2023-05-05 | 中广核检测技术有限公司 | Posture-adjustable joint pipe welding line ultrasonic and vortex 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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| CN103871515A (en) | 2014-06-18 |
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