CN104112484B - Nuclear power plant containment shell machinery penetration piece and its weld seam inservice inspection method and apparatus - Google Patents
Nuclear power plant containment shell machinery penetration piece and its weld seam inservice inspection method and apparatus Download PDFInfo
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- CN104112484B CN104112484B CN201410342521.5A CN201410342521A CN104112484B CN 104112484 B CN104112484 B CN 104112484B CN 201410342521 A CN201410342521 A CN 201410342521A CN 104112484 B CN104112484 B CN 104112484B
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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 present invention relates to a kind of nuclear power plant containment shell machinery penetration piece and its weld seam inservice inspection method and apparatus, for the inservice inspection of weld seam between the pipeline and end socket in nuclear power plant containment shell machinery penetration piece for high energy media flow.The weld seam inservice inspection method includes：S1. the anchoring sleeve by the protection sleeve being set in outside pipeline in containment to be measured machinery penetration piece in containment machinery penetration piece is set, and makes to form the receiving space for the work of weld seam inservice inspection device between protection sleeve and pipeline；S2., the weld seam inservice inspection device of ray source component and film will be installed to be arranged in the receiving space, and the position where the device is pushed into weld seam to be measured；S3. the control unit of control weld seam inservice inspection device makes film be adjacent to weld seam to be measured to start lifting assembly；S4. control ray source component starts irradiation, and is again started up lifting assembly after irradiation is completed, and film is reset to initial position, takes out weld seam inservice inspection device to obtain inspection result.
Description
Technical field
The present invention relates to nuclear power station electromechanical assembly, in particular, be related to a kind of nuclear power plant containment shell machinery penetration piece and
Its weld seam inservice inspection method and apparatus.
Background technology
Containment machinery penetration piece in nuclear power station has radioactive shield function, as shown in figure 1, containment machinery runs through
Part includes the pipeline 1 for supplying high energy media flow, the protection sleeve 2 being set in outside pipeline 1, is set in outside protection sleeve 2
Anchoring sleeve 3 and the end socket 4 being fixedly connected with pipeline 1 and anchoring sleeve 3 respectively.
In the prior art, pipeline 1 and anchoring sleeve 3 are fixedly connected by way of welding with end socket 4.End socket 4 with
Weld seam between pipeline 1 is located inside anchoring sleeve 3, is set because existing protection sleeve 2 is close to the outside of pipeline 1 so that
Existing detection device cannot reach the weld seam to carry out inservice inspection.Weld seam between end socket 4 and pipeline 1 is because that cannot examine
Survey and become the blind area of inservice inspection, it is impossible to find the abnormal conditions of the weld seam in time during nuclear power station runs with prevent in
Possible trouble.Once the weld seam is leaked, the high energy medium of flowing in pipeline 1 can be caused to leak, cause serious consequence.
Therefore, industry is to solve above mentioned problem of the prior art to propose to manufacture pipeline 1 by the way of solid forging
With end socket 4 so that pipeline 1 and end socket 4 are formed in one structure, directly avoid the generation of weld seam between end socket 4 and pipeline 1.
Although solving the problems, such as of putting things right once and for all of the method carries out inservice inspection to the weld seam, the material usage of solid forging is big,
Manufacturing process is complicated, difficulty is big and cost is significantly improved.
That is, in existing technical field of nuclear power, cannot also realize in nuclear power plant containment shell machinery penetration piece
Effective inservice inspection of weld seam between end socket 4 and pipeline 1.
The content of the invention
In order to solve the problems, such as that inservice inspection cannot be carried out to the weld seam between end socket and pipeline in the prior art, the present invention
There is provided a kind of nuclear power plant containment shell machinery penetration piece that reliable, easily inservice inspection can be carried out to the weld seam to be measured and its weldering
It is sewn on labour inspection method and device.
The technical solution adopted for the present invention to solve the technical problems is：The invention provides a kind of nuclear power plant containment shell machine
Tool penetration piece weld seam inservice inspection method, for pipeline and envelope in nuclear power plant containment shell machinery penetration piece for high energy media flow
The inservice inspection of weld seam, comprises the following steps between head：
S1. the protective case jacket casing in containment to be measured machinery penetration piece is located at the pipeline with the containment machine to be measured
Between anchoring sleeve in tool penetration piece, and the protection sleeve is set near the anchoring sleeve, make the protection sleeve
The receiving space for the work of weld seam inservice inspection device is formed between the pipeline；
S2. the weld seam inservice inspection device with ray source component and film is arranged in the receiving space,
And the position where the weld seam inservice inspection device is pushed into the weld seam to be measured；
S3. the control unit of the weld seam inservice inspection device is controlled to start the lifting of the weld seam inservice inspection device
Component, makes the film be adjacent to the weld seam to be measured；
S4. control the ray source component to start irradiation, and the lifting assembly is again started up after irradiation is completed, make institute
State film and be reset to position away from the weld seam to be measured, take out the weld seam inservice inspection device to obtain inspection result.
Also include step S0 before the step S1：According to the distance between the weld seam to be measured and described end socket, regulation
Keeper on the weld seam inservice inspection device stretches out the weld seam inservice inspection device along the bearing of trend of the pipeline
Length, to ensure the film just to the weld seam to be measured.
The step S2 includes：S21. by multiple roll wheel assemblies of compressible regulation in the weld seam inservice inspection device
The weld seam inservice inspection device is compressed on the inner peripheral surface of the protection sleeve；S22. pushed away along the axial direction of the pipeline
The weld seam inservice inspection device is moved, until the keeper is resisted against on the end face of the end socket, makes the film just to institute
State weld seam to be measured.
The step S3 also includes：The film triggers the stroke in the lifting assembly when being adjacent to the weld seam to be measured
Switch, controls the lifting assembly to stop mobile and makes the film keep being adjacent to the weld seam to be measured.
If the once irradiating of the weld seam inservice inspection device can be only done the toposcopy to weld seam to be measured, described
Also include step S5 after step S4：The weld seam inservice inspection device is taken out to change film, by the weld seam inservice inspection
Device along the pipeline the determination angle that rotates in a circumferential direction, the weld seam inservice inspection as obtained by the step S2 by rotation
Device is arranged in containment machinery penetration piece, and not detecting to the weld seam to be measured is completed by the step S3 and S4
The inservice inspection in region；Repeating said steps S2, S3, S4 and S5 are until the weld seam inservice inspection device is completed to whole described
The circumferential inspection of weld seam to be measured.
For the method for above-mentioned containment machinery penetration piece weld seam inservice inspection, present invention also offers a kind of nuclear power station safety
Full shell machinery penetration piece, including pipeline for high energy media flow, the anchoring sleeve that is embedded in containment and for institute
The end socket that anchoring sleeve and the pipeline are respectively fixedly connected with is stated, the anchoring sleeve is set in the pipeline external；The core
Power plant safety shell machinery penetration piece also includes the protective case for preventing the pipeline internal medium to be ejected on the anchoring sleeve
Cylinder, the protective case jacket casing is located between the pipeline and the anchoring sleeve, and the protection sleeve is near the anchoring cartridge
Cylinder is set, and makes to form the receiving space for the work of weld seam inservice inspection device between the protection sleeve and the pipeline；It is described
Using being welded and fixed between end socket and the pipeline, the position that the end socket is connected with the pipeline stretches out to be formed and institute
State the external diameter identical connecting portion of pipeline, the length of the connecting portion is L, and L >=15mm is ensuring the weld seam inservice inspection
Film on device can be adjacent to face of weld to be measured.
Present invention also offers a kind of weld seam inservice inspection device, for being passed through to foregoing nuclear power plant containment shell machinery
Wearing the weld seam between the pipeline in part and end socket carries out inservice inspection, and the weld seam inservice inspection device includes being set in the pipe
Multiple roll wheel assemblies, the setting of the mounting bracket outside road, the detected part for the mounting bracket to be delivered to the pipeline
The film bracket for fixing film that ray source component and the ray source component in the mounting bracket are oppositely arranged
Frame, the lifting assembly being arranged between the film bracket and the mounting bracket and for making the film bracket automatically reset
The component that automatically resets；The lifting assembly is used to, when inservice inspection is carried out to weld seam to be measured, make the film bracket to leaning on
The direction movement of the nearly pipeline is until the film is adjacent to the weld seam to be measured；The component that automatically resets is for inservice inspection
After end, coordinating with the lifting assembly makes the film bracket away from the pipeline and automatically resets.
Each roll wheel assembly includes that at least one is used to for the roll wheel assembly to be fixed on the mounting bracket respectively
On fastener and the rolling wheel support for installing roller；The rotating direction of the roller and axial the one of the mounting bracket
Cause, the roll wheel assembly drives the mounting bracket along the axial movement of the pipeline.
Each roll wheel assembly respectively further comprises the first elastic component for being set on the fastener and is arranged on described
Pressing plate between mounting bracket and the rolling wheel support；One end of first elastic component is resisted against on the rolling wheel support, institute
The other end for stating the first elastic component is resisted against on the fastener, and the first elastic component makes the roller described in the fasteners compress
Support is resisted against on the pressing plate, and makes the roller being arranged on the rolling wheel support and containment machinery penetration piece
Protection sleeve inwall compress.
The lifting assembly includes that rotary electric machine is adjacent with the eccentric wheel with the eccentric wheel that the rotary electric machine is connected
The Cam Follower for connecing and the film bracket being fixedly connected with the Cam Follower；The eccentric wheel and the rotation
The rotary shaft eccentric setting that motor is connected, the rotary electric machine drives the eccentric wheel to rotate, and makes the Cam Follower edge
Moving radially for the mounting bracket, makes the film bracket be moved to the direction closer or far from the pipeline center hub.
The lifting assembly also includes being arranged on the row for controlling the rotary electric machine closing on the film bracket
Cheng Kaiguan；The travel switch is triggered when the film is adjacent to the weld seam to be measured, closes the rotary electric machine, described
Eccentric wheel stops operating makes the film keep being adjacent to the weld seam to be measured.
The component that automatically resets includes the first reset cradle being fixedly connected with the film bracket and the installation branch
The second reset cradle that frame is fixedly connected, the linear bearing on first reset cradle, it is plugged in the linear axis
Locating part in holding and the second elastic component being set on the locating part, one end of second elastic component are resisted against described
On linear bearing, the other end of second elastic component is resisted against on the positive stop lug boss of the locating part end；The film bracket
Frame drives first reset cradle and the linear bearing along the locating part movement to compress second elastic component, makes institute
Film is stated to be adjacent to carry out inservice inspection with the weld seam to be measured；After second elastic component terminates for inservice inspection, in bullet
Property restoring force in the presence of promote the linear bearing and first reset cradle along the locating part move backward reset, make
The film bracket is moved to the direction away from the pipeline and resetted.
Multiple fixed seats are provided with the inwall of the mounting bracket, branch is installed in one end of each fixed seat with described
Frame is fixedly connected, and the other end of each fixed seat forms fixed otic placode along the bent radial of the mounting bracket；It is described solid
Determine the keeper for determining position while welding to be measured is installed on otic placode, the keeper stretches out along the bearing of trend of the pipeline
The adjustable length of the mounting bracket.
Nuclear power plant containment shell machinery penetration piece provided by the present invention has advantages below：The outer surface of connecting portion and pipeline
Outer surface smoother connection and its length L >=15mm, it is ensured that the film in weld seam inservice inspection device can be with face of weld to be measured
It is adjacent to；Approached protecting the internal diameter of sleeve to be extended to anchoring sleeve, make to keep enough distances between protection sleeve and pipeline, with
Ensure that weld seam inservice inspection device can be passed in and out smoothly；It is provided between protection sleeve and anchoring sleeve multiple solid for supporting
Surely the pad of sleeve is protected, the stability and weight capacity of protection sleeve is improve.
It is provided by the present invention for check nuclear power plant containment shell machinery penetration piece interior conduit and end socket between weld seam to be measured
Weld seam inservice inspection method and device there is advantages below：
(1) multiple keepers for determining position while welding to be measured are set in mounting bracket, and keeper stretches out installation branch
The adjustable length of frame, it can be ensured that weld seam inservice inspection device can accurately be delivered to weld seam to be measured where position, can also be right
Size it is different containment machinery penetration piece checked, enhance the practicality and adaptability of the device, expand and use model
Enclose.
(2) roll wheel assembly of Compressible can produce larger tangential friction force, be somebody's turn to do after being prevented effectively from centre-of gravity shift
Device, so as to reduce other for the structure or component that balance center of gravity, simplifies the structure of the present apparatus along the circumferential sliding of pipeline；This
Outward, after being attached in containment machinery penetration piece, roller compression protects the inwall of sleeve to roll wheel assembly, makes whole weld seam in-service
The weight of check device is applied only on protection sleeve, will not cause additional load to pipeline, it is not required that added on pipeline
The devices such as any support, fully meet the design requirement of pipeline and the bearing requirements of containment.
(3) during film is adjacent into weld seam, travel switch is when film is adjacent to weld seam to be measured in time by control
Unit processed makes lifting assembly stop movement, can be prevented effectively from lifting assembly excessive to pressure that pipeline applies and bring hidden safely
Suffer from.
(4) setting of lifting assembly and the component that automatically resets, makes second elasticity of the film bracket in the component that automatically resets
Under the elastic reaction of part, the lifting of film bracket is realized using the rotation of eccentric wheel, complete film and be close to and hold out against weld seam to be measured
And straight line resets, and the Automated condtrol of whole inservice inspection is realized, with high degree of automation, stabilization, reliability and knot
The advantages of structure is simple.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of nuclear power plant containment shell machinery penetration piece in the prior art；
Fig. 2 is the flow chart of nuclear power plant containment shell machinery penetration piece weld seam inservice inspection method in the present invention；
Fig. 3 is the structural representation of the nuclear power plant containment shell machinery preferred embodiment of penetration piece one in the present invention；
Fig. 4 is the sectional view in K-K directions in Fig. 3；
Fig. 5 be in Fig. 3 along F to structural representation；
Fig. 6 is the partial sectional view in G-G directions in Fig. 5；
Fig. 7 is the three-dimensional structure diagram of the preferred embodiment of weld seam inservice inspection device one in the present invention；
Fig. 8 is the front view of weld seam inservice inspection device in Fig. 7；
Fig. 9 is the upward view of the first mounting bracket in Fig. 7；
Figure 10 is top view of the weld seam inservice inspection device after the first mounting bracket is removed in Fig. 7；
Figure 11 is to install in nuclear power plant containment shell machinery penetration piece in fig. 2 the weld seam inservice inspection device in Fig. 7
When schematic diagram；
Figure 12 is the close-up schematic view in A portions in Figure 11；
Figure 13 is the structural representation of the preferred embodiment of lifting assembly one；
Figure 14 is the close-up schematic view in B portions in Figure 11；
Figure 15 is the top view of the second mounting bracket in Fig. 7.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is only used to explain the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 2 the invention provides a kind of nuclear power plant containment shell machinery penetration piece weld seam inservice inspection method, being used for
For the inservice inspection of weld seam between the pipeline 1 and end socket 4 of high energy media flow, specific bag in nuclear power plant containment shell machinery penetration piece
Include following steps：
S1. the protection sleeve 2 in containment to be measured machinery penetration piece is set between pipeline 1 and anchoring sleeve 3, and will
Protection sleeve 2 is set near anchoring sleeve 3, makes to be formed between protection sleeve 2 and pipeline 1 for the work of weld seam inservice inspection device
Receiving space；
S2. the weld seam inservice inspection device that ray source component and film will be provided with is arranged in the receiving space, and
Position where weld seam inservice inspection device is pushed into weld seam to be measured；
S3. the control unit of weld seam inservice inspection device is controlled to start the lifting assembly 50 of weld seam inservice inspection device,
The film is set to be adjacent to the weld seam to be measured；
S4. control ray source component starts irradiation, and is again started up lifting assembly 50 after irradiation is completed, and film is resetted
To initial position, take out weld seam inservice inspection device to obtain inspection result.
If the once irradiating of weld seam inservice inspection device can be only done the inservice inspection of the regional area to weld seam to be measured,
Step S5 should also be included after step s4：
S5. weld seam inservice inspection device is taken out to change film, by weld seam inservice inspection device rotating in a circumferential direction along pipeline 1
One determines angle, and postrotational weld seam inservice inspection device is arranged in containment machinery penetration piece by step S2, continues
Inspection to the non-detection zone of weld seam to be measured is completed by step S3 and S4；Finally, repeat step S2, S3, S4 and S5 until
Weld seam inservice inspection device completes to check the circumferential of whole weld seam to be measured.
For ensure weld seam inservice inspection device can fast and accurately reach weld seam to be measured where position, it is necessary in the weldering
Being sewn in labour check device increases location structure.
In view of pipeline to be met 1 design requirement with as far as possible reduce weld seam inservice inspection device pipeline 1 is brought it is attached
Loading lotus, so as to avoid accident, it is impossible to any support meanss are added on pipeline 1, it is necessary to by whole weld seam inservice inspection device
It is moveably mounted to the inner side of protection sleeve 2 outside pipeline 1；Equally, in order to avoid film is being adjacent to pipeline 1 by lifting assembly
During the pressure that applies to pipeline 1 it is excessive, it is necessary to set up travel switch in lifting assembly 50, pasted with weld seam to be measured in film
Making lifting assembly 50 stop movement by control unit in time when tight.
As shown in figure 3, according to foregoing nuclear power plant containment shell machinery penetration piece inservice inspection method, the present invention is provided
A kind of nuclear power plant containment shell machinery penetration piece, including pipeline 1 for radioactive substance flowing, pre-buried be fixed in containment
Anchoring sleeve 3 and the end socket 4 for being respectively fixedly connected with anchoring sleeve 3 and pipeline 1, and anchoring sleeve 3 is set in pipeline 1
It is outside.
The generally hollow disc-shaped structure of end socket 4, offers the connection through hole 7 with the insertion of pipeline 1 in it, the connection through hole
7 internal diameter is identical with the internal diameter size of pipeline 1.One end end face of pipeline 1 is fixedly connected with end socket 4, and the internal face of pipeline 1 with
The internal face for connecting through hole 7 is in smoothing junction；One end end face of anchoring sleeve 3 is also fixedly connected with end socket 4, and anchoring sleeve 3
Outside wall surface is in smoothing junction with the outside wall surface of end socket 4.
In the present embodiment, realize being connected by the way of welding between end socket 4 and pipeline 1, end socket 4 and pipeline
1 position being connected stretches out the connecting portion 5 to be formed with the internal diameter of pipeline 1 and the tubulose of external diameter all same.Due to its external diameter
Identical with pipeline 1, the outer surface of connecting portion 5 is connected with the outer surface smoother of pipeline 1, so may insure that weld seam inservice inspection is filled
Film (not shown) in putting can be adjacent to face of weld to be measured, improve the degree of accuracy of inservice inspection.
Additionally, connecting portion 5 is seen as the straight section that a length is L from the sectional view of Fig. 3, to avoid because L is shorter so that weld seam
Film in inservice inspection device cannot be adjacent to weld seam to be measured, and the L >=15mm in the present invention supplies weld seam to reserve sufficient space
Inservice inspection device is moved, and film can be made to be adjacent to face of weld to be measured as much as possible when further ensuring that inservice inspection, it is preferred that
L≥30mm。
Nuclear power plant containment shell machinery penetration piece also includes being used to prevent the protection sleeve 2 that radioactive substance leaks in pipeline 1,
Protection sleeve 2 is substantially set in the tubular structure between pipeline 1 and anchoring sleeve 3, and protection sleeve 2 near anchoring sleeve 3
Set, make to form the receiving space for passing through for weld seam inservice inspection device and working between protection sleeve 2 and pipeline 1.In this hair
In bright, approached protecting the internal diameter of sleeve 2 to be extended to the internal diameter of anchoring sleeve 3, make to be kept between protection sleeve 2 and pipeline 1
Enough distances, to ensure that weld seam inservice inspection device can be passed in and out smoothly.
As shown in figure 4, nuclear power plant containment shell machinery penetration piece also protection sleeve 2 and anchoring sleeve 3 between be provided with it is many
The individual pad 6 for supporting fixed protection sleeve 2, pad 6 is circumferentially disposed along protection sleeve 2.The card of each pad 6 sets and is fixed on
Between protection sleeve 2 and anchoring sleeve 3.
In the present embodiment, four pads 6 are provided with, and two of which pad 6 is symmetricly set on the bottom of protection sleeve 2
Portion, angle is 90 °.It is understood that the number of pad 6 is not specifically limited herein, as long as can realize to protection sleeve 2
Stabilization is supported and fixed.Preferably, multiple pads 6 are symmetrical arranged to ensure to protect the stress equalization of sleeve 2.
As shown in figure 5, protection sleeve 2 is fixedly connected with the end face of anchoring sleeve 3 by six fixed blocks 8, six fixations
Block 8 is symmetrical.
Preferably, in three fixed blocks 8 of the same side, it is two neighboring between angle be 45 °, positioned at bottom
Angle between two symmetrically arranged fixed blocks 8 is 90 °, and this distribution mode can make protective case 2 uniform stresseds of cylinder.
Preferably, each fixed block 8 is made by metal material, and protection sleeve 2 and anchoring sleeve 3 are solid using welding
Fixed mode is connected with each fixed block 8 respectively.
It is understood that the number and distribution mode of fixed block 8 are not limited to the present invention, or four and phase
Angle between adjacent two fixed blocks 8 is the diversified forms such as 90 °, is not especially limited herein.
Fig. 6 shows the partial sectional view in G-G directions in Fig. 5, it can be seen that each fixed block 8 respectively with protection sleeve 2 and
Anchoring sleeve 3 is welded and fixed.
It is understood that protection sleeve 2 is not limited to welding by way of fixed block 8 is connected with anchoring sleeve 3, also
Can be fixed, two grooves can be opened up on fixed block 8 and is used to engage with protection sleeve 2 and anchoring sleeve 3 respectively.
According to the nuclear power station safety after foregoing nuclear power plant containment shell machinery penetration piece inservice inspection method and improvement
The dependency structure feature of full shell machinery penetration piece, present invention also offers a kind of weld seam inservice inspection device, for such as preceding institute
In the nuclear power plant containment shell machinery penetration piece stated in-service inspection is carried out for the weld seam between the pipeline 1 and end socket 4 of high energy media flow
Look into.
As shown in fig. 7, the weld seam inservice inspection device specifically include for be set in mounting bracket 10 outside pipeline 1,
For multiple roll wheel assemblies 20 that mounting bracket 10 is delivered to the detected part of pipeline 1, the ray that is arranged in mounting bracket 10
The film bracket 40 for fixing film that source component (not shown) and ray source component are oppositely arranged, it is arranged on film
Lifting assembly 50 between bracket 40 and mounting bracket 10 and for making the automatically reset component that automatically resets of film bracket 40
60；When inservice inspection is carried out to weld seam to be measured, lifting assembly 50 make film bracket 40 near pipeline 1 direction movement until
Film is adjacent to weld seam to be measured；After inservice inspection terminates, the component 60 that automatically resets coordinates with lifting assembly 50 makes film bracket 40 remote
From pipeline 1 and automatically reset.
Mounting bracket 10 includes the mounting bracket 102 of semiorbicular first mounting bracket 101 and second, the first mounting bracket
101 and second mounting bracket 102 two ends difference outward bending formed installation portion 103, offered at least on each installation portion 103
One mounting hole (not shown) passed through for connectors such as bolts.In the present embodiment, offered on each installation portion 103
Two mounting holes, by the installation portion 103 at the first mounting bracket 101 and the two ends of the second mounting bracket 102 against by bolt through peace
Simultaneously be connected for the first mounting bracket 101 and the second mounting bracket 102 by attaching nut in dress hole, forms a complete annular peace
Dress support 10.
Be provided with multiple fixed seats 105 on the inwall of mounting bracket 10, one end of each fixed seat 105 all with mounting bracket
10 internal face is fixedly connected, and its other end forms fixed otic placode 106 along the bent radial of mounting bracket 10.Preferably, pacify
Three fixed seats 105 are provided with the inwall for filling support 10, the angle between two adjacent fixed seats 105 is 120 °.Each fixation
Keeper 107 for determining position while welding to be measured is installed, keeper 107 stretches out along the bearing of trend of pipeline 1 on otic placode 106
The adjustable in length of mounting bracket 10.
In the present embodiment, keeper 107 is bolt, and offering at least one through hole on fixed otic placode 106 supplies keeper
107 pass through, and keeper 107 stretches out one end of mounting bracket 10 with nut screw connection to adjust extension elongation.
When weld seam inservice inspection is carried out, regulation keeper 107 stretches out the length of mounting bracket 10 to ensure to work as keeper
107 one end for stretching out mounting bracket 10 are resisted against when on the end face of end socket 4, and film can just be completely covered weld seam to be measured.Due to
The size of end socket 4 is known determination value in each secure mechanical penetration piece, can be known between weld seam to be measured and end socket 4 accordingly
Distance, therefore the extension elongation of keeper 107 can be pre-adjusted according to the distance between weld seam to be measured and end socket 4, so
Position where may insure weld seam inservice inspection device and accurately being delivered to weld seam to be measured.Furthermore, it is possible to pass through regulation positioning
The extension elongation of part 107 come to size it is different containment machinery penetration piece check, enhance the device practicality and
Adaptability, expands and uses scope.
Therefore, step S0 should also be included before S1 the step of as previously described：According between weld seam to be measured and end socket 4 away from
From the keeper 107 on regulation weld seam inservice inspection device stretches out the length of weld seam inservice inspection device along the bearing of trend of pipeline 1
Degree, to ensure that film can be adjacent to weld seam to be measured.
To avoid weld seam inservice inspection device that additional load, the weld seam inservice inspection device in the present invention are brought to pipeline 1
It is to compress to be arranged on the inner peripheral surface of protection sleeve 2 by multiple roll wheel assemblies 20 of compressible regulation.
Wherein, each roll wheel assembly 20 includes that at least one is used to for the roll wheel assembly 20 to be fixed on mounting bracket 10 respectively
On fastener 201 and the rolling wheel support 203 for installing roller 202；The rotating direction of roller 202 and the axle of mounting bracket 10
To consistent, roll wheel assembly 20 drives mounting bracket 10 along the axial movement of pipeline 1.Offered on rolling wheel support 203 and supply fastener
201 through holes for passing through, correspondence offers the mounting hole 204 (referring to Fig. 9) for matching in mounting bracket 10, flat where roller 202
The radial direction of face and mounting bracket 10, the i.e. bearing of trend of pipeline 1, it is parallel ensuring that roll wheel assembly 20 can only be along the extension of pipeline 1
Move in direction.Fastener 201 can be the connectors such as bolt, screw.
Each roll wheel assembly 20 respectively further comprises the first elastic component 205 (referring to Fig. 8) for being set on fastener 201 and sets
Put the pressing plate 206 between mounting bracket 10 and rolling wheel support 203.One end of first elastic component 205 is against rolling wheel support 203
On, the other end is against on the nut of fastener 201.
During field joint inservice inspection device, the nut of the end of loosening fasteners 201, the pressure of the first elastic component 205 is released
Put, roller 202 and rolling wheel support 203 can moving radially along mounting bracket 10, now, easily weld seam inservice inspection can be filled
Placement location is between protection sleeve 2 and anchoring sleeve 3.Then, inspection of the weld seam inservice inspection device along the circumference of pipeline 1 is adjusted
Angle, tightens the nut of the end of all fasteners 201, fastener 201 is compressed the first elastic component 205, and the first elastic component 205 is pressed
Contracting makes rolling wheel support 203 be tightly abutted against on pressing plate 206, and makes to be arranged on the roller 202 and protective case at the two ends of rolling wheel support 203
The inwall of cylinder 2 is compressed.
After roller 202 compresses the inwall of protection sleeve 2, can roll along direction tangentially produces larger frictional force, with
Whole device is prevented relative to the circumference sliding of pipeline 1, so that it is guaranteed that film is fixed relative to the position of the circumference of pipeline 1.Roller
Have no effect on weld seam inservice inspection device after 202 compressions to be moved along the bearing of trend of pipeline 1, can be pushed into for the device and treat by user
Location is put.
The roll wheel assembly 20 of this Compressible can produce larger tangential friction force, be somebody's turn to do after being prevented effectively from centre-of gravity shift
Device therefore can reduce other for balancing the structure or component of center of gravity along the sliding of the circumference of pipeline 1, effectively simplify the present apparatus
Structure.
Additionally, the compressible roll wheel assembly 20 of the external external of roller 202 is being attached in containment machinery penetration piece
Afterwards, roller 202 compresses the inwall of protection sleeve 2, makes the weight of whole weld seam inservice inspection device be applied only to protect sleeve 2
On, additional load will not be caused to pipeline 1, it is not required that the devices such as any support are added on pipeline 1, pipeline 1 is fully met
Design requirement and containment bearing requirements.
Therefore, as previously described the step of, S2 was specifically further divided into following steps：S21. weld seam inservice inspection device is put
Enter in the receiving space, by multiple roll wheel assemblies 20 of compressible regulation in weld seam inservice inspection device by the in-service inspection of weld seam
Device is looked into compress on the inner peripheral surface of protection sleeve 2；S22. weld seam inservice inspection device is promoted along the axial direction of pipeline 1, directly
It is resisted against on the end face of end socket 4 to keeper 107.
As shown in figure 8, multiple roll wheel assemblies 20 are uniformly and symmetrically distributed the circumference in mounting bracket 10, roll wheel assembly 20
Number is at least 3 groups, and specific number is unrestricted herein, as long as meet that weld seam inservice inspection device can be prevented along protection sleeve 2
Inwall circumferentially slides.Preferably, the device has six roll wheel assemblies 20, between any two adjacent roller assemblies 20
Angle is 60 °.
Ray source component (not shown) is gamma-ray source.
Fig. 9 shows the upward view of the first mounting bracket 101, be provided with the internal face of the first mounting bracket 101 for
The radiographic source support 30 of fixed ray source component, for installing and fixing ray source component.
Figure 10 combination Fig. 8, film bracket 40 is semi-circular laminated structure, and its shape size is adapted with film, its bending
Radian is adapted with pipeline 1；Film is fixed on the upper of film bracket 40 and is fitted with the upper surface of film bracket 40, the tool of film
Body fixed form can be paste, block set, screw or bolt are fixed etc., in the present embodiment, it is preferred to use bonding method is fixed
Film.
Figure 11 show by weld seam inservice inspection device be arranged on nuclear power plant containment shell machinery penetration piece in when schematic diagram,
Lifting assembly 50 makes its close pipeline 1 for jack-up film bracket 40, can be come from air bag compression, cylinder type lifting device
The lifting of film bracket 40 is realized, is not especially limited herein.In the present embodiment, the preferred eccentric wheel type liter of the lifting assembly 50
Come down to a lower group part.It is furthermore preferred that the angle b between two adjacent roller assemblies 20 is 60 °.
With reference to Figure 12 and Figure 13, the lifting assembly 50 includes the eccentric wheel that rotary electric machine 501 and rotary electric machine 501 are connected
502 and the adjacent Cam Follower 503 of eccentric wheel 502 and be arranged on film bracket 40 for controlling the rotation
The travel switch 504 of motor 501.The bottom of film bracket 40 is provided with the cam being fixedly connected with the Cam Follower 503
Follower support 401, Cam Follower 503 is bolted on Cam Follower support 401.Preferably, rotary electric machine
501 remote-controlled controls, eccentric wheel 502 is generally aligned in the same plane with Cam Follower 503.
Travel switch 504 is fixed on film bracket 40, and its compressible end protrudes from the place plane of film bracket 40,
Close to control the break-make of electric signal by the mechanical pine of ends points.Rotary electric machine 501 opens the eccentric wheel for driving eccentric setting
502 rotate, and make the moving radially along mounting bracket 10 of Cam Follower 503, and then drive film bracket 40 near pipeline 1.When
When film is adjacent to weld seam to be measured, the end of travel switch 504 is compressed, sensor-triggered, and then controls the He of rotary electric machine 501
Eccentric wheel 502 stops operating, and makes film keep being adjacent to weld seam to be measured until radiation exposure is completed.Irradiation completion generally refers to reach
Pointed out to default irradiation time or setting indicator.
Travel switch 504 is triggered when film is adjacent to weld seam to be measured, control lifting assembly 50 stops movement, protects film
The state being adjacent to weld seam to be measured holding is held, while, it is to avoid film bracket 40 continues to compress pipeline 1 and bring potential safety hazard.
Shown in Figure 14 combinations Figure 11, the component 60 that automatically resets includes the first reset cradle being fixedly connected with film bracket 40
601 the second reset cradles 602 being fixedly connected with mounting bracket 10, the linear bearing on the first reset cradle 601
603rd, the locating part 604 being plugged in linear bearing 603 and the second elastic component 605 being set on locating part 604, wherein,
One end of second elastic component 605 is resisted against on linear bearing 603, and the other end of the second elastic component 605 is resisted against the end of locating part 604
On the positive stop lug boss in portion.
First reset cradle 601 and the adjacent end bending of the second reset cradle 602 are L-shaped, the first reset cradle 601
Multiple through holes for installing linear bearing 603 are offered on the bending part of end, locating part 604 rubs through for reducing movement
It is fixedly connected with the second reset cradle 602 after the linear bearing 603 for wiping power.
In the present embodiment, the device includes two groups of components 60 that automatically reset for being symmetricly set on the both sides of lifting assembly 50,
Ensure the uniform force of film bracket 40, and when inservice inspection is carried out, the second elastic component 605 of compression can elastic reaction first
On reset cradle 601, film is set also to be brought into close contact with weld seam to be measured away from the both sides of lifting assembly 50.It is understood that
The group number and specific installation site of component 60 of automatically reseting is not limited to the present invention.
As shown in figure 15, offered on the bending part of the second reset cradle 602 for locating part 604 through fixed through hole.
In the present embodiment, eccentric wheel 502 is circular, its rotary shaft eccentric setting, and film bracket 40 is in the group that automatically resets
Under the elastic reaction of the second elastic component 605 in part 60, the lifting of film bracket 40 is realized using the rotation of eccentric wheel 502, it is complete
Weld seam to be measured is close to and held out against into film and separates reset with weld seam to be measured.
When inservice inspection is carried out, lifting assembly 50 drives film bracket 40 near pipeline 1, and film bracket 40 drives and it
The first reset cradle 601 being fixedly connected moves linearly, so as to drive the linear bearing being fixed on the first reset cradle 601
603 move to compress the second elastic component 605 along locating part 604.
After inservice inspection terminates, telecontrolled rotating motor 501 is resetted, and rotary electric machine 501 is rotated with driving lifting assembly 50
Eccentric wheel 502 be rotated further, gap is produced between eccentric wheel 502 and Cam Follower 503, the second elastic component 605 is at itself
Promote linear bearing 603 to be moved backward along locating part 604 in the presence of elastic restoring force, and then make to be fixed with linear bearing 603
First reset cradle 601 of connection drives the reverse linear movement of film bracket 40 to reset, i.e., along straight away from moving radially for pipeline 1
To the state that reply Cam Follower 503 and eccentric wheel 502 are abutted against.
Preferably, the second elastic component 605 remains at compressive state to guarantee to make film bracket 40 reset in time.
In sum, installing and carry out inservice inspection to nuclear power plant containment shell machinery penetration piece using the device can specifically divide
It is following steps：
S00. the assembling of weld seam inservice inspection device and regulation：Ray source component is fixed on the ray in mounting bracket 10
On source support 30, sticker is fixed on the film bracket 40 being oppositely arranged with ray source component；Regulation keeper 107 is stretched
Go out the length of mounting bracket 10 to ensure that the one end for stretching out mounting bracket 10 when keeper 107 is resisted against when on the end face of end socket 4,
Film can just be completely covered weld seam to be measured.
S10. field joint inservice inspection device：The nut of the end of fastener 201 in rolling assembly 20 is unclamped, weld seam is existed
In the receiving space that labour check device is placed between protection sleeve 2 and pipeline 1, mounting bracket 10 is set to be set in outside pipeline 1；Point
The fastener 201 in each roll wheel assembly 20 is not tightened to compress the first elastic component 205 being set on fastener 201, is made
Roller 202 in multiple roll wheel assemblies 20 compresses the inwall of protection sleeve 2, now, the weight of weld seam inservice inspection device respectively
All it is applied on protection sleeve 2.
S20. the position where weld seam inservice inspection device being delivered into weld seam to be measured：Weldering is pushed along the bearing of trend of pipeline 1
Labour check device is sewn on, until keeper 107 is resisted against on the end face of end socket 4.
S30. inservice inspection is carried out to the weld seam to be measured：
S31. telecontrolled rotating motor 501 is opened, lifting assembly 50 make film bracket 40 along mounting bracket 10 radially adjacent to
Pipeline 1, when film is adjacent to weld seam to be measured, travel switch 504 triggering close rotary electric machine 501, film keep with it is to be measured
Weld seam is adjacent to；
S32. remote control opens ray source component until irradiation is completed；
S33. telecontrolled rotating motor 501 is resetted, and rotary electric machine 501 is rotated and resetted with band movable eccentric wheel 502, film bracket 40
It is mobile in the presence of the component 60 that automatically resets to reset.
S40. weld seam inservice inspection device is circumferentially adjusted：Weld seam inservice inspection device is taken along the bearing of trend of pipeline 1
Go out, remove the film for having completed irradiation, new film is installed, the weld seam inservice inspection device that will be taken out revolves along the circumference of pipeline 1
It is arranged in nuclear power plant containment shell machinery penetration piece again by step S10 after turning a determination angle.
Because weld seam to be measured is annular in shape, irradiation can only check a part for weld seam to be measured every time, and rolling assembly 20 is not
Can only can be moved along the bearing of trend of protection sleeve 2, therefore want to enter whole weld seam to be measured along circumferentially rotating for sleeve 2 is protected
Row inspection can only by the device take out after, containment machinery penetration piece outside rotation one determine angle after repeat S10, S20,
S30 and S40 is until inspection of the weld seam inservice inspection device along the circumferential completion of pipeline 1 to whole weld seam to be measured.
In the present embodiment, the radian of film bracket 40 is slightly larger than 120 °, therefore the radian of film fixed thereon is also bigger
In 120 °, once irradiating can be completed to 120 ° of inspections of weld seam to be measured, complete at least to need three to the inspection of whole radian to be measured
Secondary irradiation.
To sum up, nuclear power plant containment shell machinery penetration piece provided by the present invention has advantages below：The outer surface of connecting portion 5
It is connected with the outer surface smoother of pipeline 1 and its length L >=15mm, it is ensured that the film in weld seam inservice inspection device can be with weldering to be measured
Seam surface is adjacent to；Approached protecting the internal diameter of sleeve 2 to be extended to anchoring sleeve 3, make to be kept between protection sleeve 2 and pipeline 1
Enough distances, to ensure that weld seam inservice inspection device can be passed in and out smoothly；It is provided between protection sleeve 2 and anchoring sleeve 3
Multiple fixes the pad 6 of protection sleeve 2 for supporting, and improves the stability and weight capacity of protection sleeve 2.
Weldering for checking weld seam to be measured between containment machinery penetration piece interior conduit 1 and end socket 4 provided by the present invention
Being sewn on labour check device and method has advantages below：
(1) set multiple for determining that the keeper 107 and keeper 107 of position while welding to be measured stretch out in mounting bracket 10
The adjustable length of mounting bracket 10, it can be ensured that weld seam inservice inspection device can accurately be delivered to weld seam to be measured where position,
Can also be different to size containment machinery penetration piece check, enhance the practicality and adaptability of the device, expand
Use scope.
(2) roll wheel assembly 20 of Compressible can produce larger tangential friction force, after being prevented effectively from centre-of gravity shift
The device, so as to reduce other for the structure or component that balance center of gravity, simplifies the knot of the present apparatus along the sliding of the circumference of pipeline 1
Structure；Additionally, roll wheel assembly 20 is after being attached in containment machinery penetration piece, roller 202 compresses the inwall of protection sleeve 2, makes
The weight of whole weld seam inservice inspection device is applied only on protection sleeve 2, will not cause additional load to pipeline 1, is also not required to
The devices such as any support are added on pipeline 1, the design requirement of pipeline 1 and the bearing requirements of containment are fully met.
(3) during film is adjacent into weld seam, travel switch is when film is adjacent to weld seam to be measured in time by control
Unit processed makes lifting assembly stop movement, can be prevented effectively from lifting assembly excessive to pressure that pipeline applies and bring hidden safely
Suffer from.
(4) lifting assembly 50 and the setting of component 60 of automatically reseting, make film bracket 40 in the component 60 that automatically resets
Under the elastic reaction of the second elastic component 605, the lifting of film bracket 40 is realized using the rotation of eccentric wheel 502, complete film and lean on
It is near and hold out against weld seam to be measured and straight line resets, realize the Automated condtrol of whole inservice inspection, with high degree of automation,
Stabilization, reliability and advantages of simple structure and simple.
Embodiments of the invention are described with reference to accompanying drawing, but the invention is not limited in above-mentioned specific implementation
Mode, above-mentioned specific embodiment is only schematical, and rather than restricted, one of ordinary skill in the art is at this
Under the enlightenment of invention, in the case of present inventive concept and scope of the claimed protection is not departed from, many forms can be also made,
These are belonged within protection of the invention.
Claims (13)
1. a kind of nuclear power plant containment shell machinery penetration piece weld seam inservice inspection method, in nuclear power plant containment shell machinery penetration piece
For the inservice inspection of weld seam between the pipeline (1) and end socket (4) of high energy media flow, it is characterised in that comprise the following steps：
S1. the protection sleeve (2) in containment to be measured machinery penetration piece is set in the pipeline (1) with the containment to be measured
Between anchoring sleeve (3) in mechanical penetration piece, and protection sleeve (2) is set near the anchoring sleeve (3), make institute
State the receiving space formed between protection sleeve (2) and the pipeline (1) for the work of weld seam inservice inspection device；
S2. the weld seam inservice inspection device with ray source component and film is arranged in the receiving space, and will
The weld seam inservice inspection device push to weld seam to be measured where position；
S3. the control unit of the weld seam inservice inspection device is controlled to start the lifting assembly of the weld seam inservice inspection device
(50) film, is made to be adjacent to the weld seam to be measured；
S4. control the ray source component to start irradiation, and the lifting assembly (50) is again started up after irradiation is completed, make institute
State film and be reset to position away from the weld seam to be measured, take out the weld seam inservice inspection device to obtain inspection result.
2. nuclear power plant containment shell according to claim 1 machinery penetration piece weld seam inservice inspection method, it is characterised in that
Also include step S0 before the step S1：According to the distance between the weld seam to be measured and described end socket (4), the weld seam is adjusted
Keeper (107) on inservice inspection device stretches out the weld seam inservice inspection device along the bearing of trend of the pipeline (1)
Length, to ensure the film just to the weld seam to be measured.
3. nuclear power plant containment shell according to claim 2 machinery penetration piece weld seam inservice inspection method, it is characterised in that institute
Stating step S2 includes：
S21. the multiple roll wheel assemblies (20) by compressible regulation in the weld seam inservice inspection device are in-service by the weld seam
Check device is compressed on the inner peripheral surface of protection sleeve (2)；
S22. the weld seam inservice inspection device is promoted along the axial direction of the pipeline (1), until the keeper (107) is resisted against
On the end face of the end socket (4), make the film just to the weld seam to be measured.
4. nuclear power plant containment shell according to claim 2 machinery penetration piece weld seam inservice inspection method, it is characterised in that institute
Stating step S3 also includes：The film triggers the travel switch in the lifting assembly (50) when being adjacent to the weld seam to be measured
(504), control the lifting assembly (50) to stop mobile and make the film keep being adjacent to the weld seam to be measured.
5. nuclear power plant containment shell according to claim 2 machinery penetration piece weld seam inservice inspection method, it is characterised in that if
The once irradiating of the weld seam inservice inspection device can be only done the toposcopy to weld seam to be measured, then after the step S4
Also include step S5：The weld seam inservice inspection device is taken out to change film, by the weld seam inservice inspection device along described
The determination angle that rotates in a circumferential direction of pipeline (1), the weld seam inservice inspection device peace as obtained by the step S2 by rotation
In containment machinery penetration piece, completed to the non-detection zone of the weld seam to be measured by the step S3 and S4
Inservice inspection；Repeating said steps S2, S3, S4 and S5 are until the weld seam inservice inspection device is completed to the whole weldering to be measured
The circumferential inspection of seam.
6. a kind of nuclear power plant containment shell machinery penetration piece, it is characterised in that including the pipeline (1) for high energy media flow, pre-buried
Anchoring sleeve (3) in containment and the envelope for being respectively fixedly connected with the anchoring sleeve (3) and the pipeline (1)
Head (4), it is outside that the anchoring sleeve (3) is set in the pipeline (1)；
The nuclear power plant containment shell machinery penetration piece is also included for preventing the pipeline (1) interior medium injection to the anchoring cartridge
Protection sleeve (2) on cylinder (3), protection sleeve (2) is set between the pipeline (1) and the anchoring sleeve (3), and
Protection sleeve (2) is set near the anchoring sleeve (3), makes to be formed between protection sleeve (2) and the pipeline (1)
For the receiving space of weld seam inservice inspection device work；
Used between the end socket (4) and the pipeline (1) and be welded and fixed, what the end socket (4) was connected with the pipeline (1)
Position stretches out external diameter identical connecting portion (5) to be formed with the pipeline (1), and the length of the connecting portion (5) is L, and L
>=15mm can be adjacent to the film ensured on the weld seam inservice inspection device with face of weld to be measured.
7. a kind of weld seam inservice inspection device, it is characterised in that for being passed through to the nuclear power plant containment shell machinery described in claim 6
Wearing the weld seam between the pipeline (1) in part and end socket (4) carries out inservice inspection, and the weld seam inservice inspection device includes being set in
The pipeline (1) outside mounting bracket (10), the detected part for the mounting bracket (10) to be delivered to the pipeline (1)
Multiple roll wheel assemblies (20), the ray source component that is arranged in the mounting bracket (10) it is relative with the ray source component
Set the film bracket (40) for fixing film, be arranged between the film bracket (40) and the mounting bracket (10)
Lifting assembly (50) and for making the automatically reset component that automatically resets (60) of the film bracket (40)；
The lifting assembly (50) is for when inservice inspection is carried out to weld seam to be measured, making the film bracket (40) near institute
The direction movement of pipeline (1) is stated until the film is adjacent to the weld seam to be measured；The component that automatically resets (60) is for in-service
After inspection terminates, coordinating with the lifting assembly (50) makes the film bracket (40) away from the pipeline (1) and automatically resets.
8. weld seam inservice inspection device according to claim 7, it is characterised in that each roll wheel assembly (20) is respectively
It is used for fastener (201) that the roll wheel assembly (20) is fixed in the mounting bracket (10) including at least one and is used for
The rolling wheel support (203) of roller (202) is installed；The rotating direction of the roller (202) and the axial direction of the mounting bracket (10)
Unanimously, the roll wheel assembly (20) drives the mounting bracket (10) along the axial movement of the pipeline (1).
9. weld seam inservice inspection device according to claim 8, it is characterised in that each roll wheel assembly (20) is also divided
The first elastic component (205) that Bao Kuo not be set on the fastener (201) and be arranged on the mounting bracket (10) with it is described
Pressing plate (206) between rolling wheel support (203)；
One end of first elastic component (205) is resisted against on the rolling wheel support (203), first elastic component (205)
The other end is resisted against on the fastener (201), and the fastener (201) compresses first elastic component (205) makes the rolling
Wheel support (203) is resisted against on the pressing plate (206), and makes the roller (202) being arranged on the rolling wheel support (203)
Inwall with the protection sleeve (2) of containment machinery penetration piece is compressed.
10. weld seam inservice inspection device according to claim 7, it is characterised in that the lifting assembly (50) is including turning
Dynamic motor (501) and adjacent convex of the eccentric wheel (502) and the eccentric wheel (502) of the rotary electric machine (501) connection
Wheel follower (503) and the film bracket (40) being fixedly connected with the Cam Follower (503)；
The rotary shaft eccentric setting that the eccentric wheel (502) is connected with the rotary electric machine (501), the rotary electric machine
(501) drive the eccentric wheel (502) to rotate, the Cam Follower (503) is moved along the radial direction of the mounting bracket (10)
It is dynamic, the film bracket (40) is moved to the direction closer or far from the pipeline (1) center hub.
11. weld seam inservice inspection devices according to claim 10, it is characterised in that the lifting assembly (50) also includes
It is arranged on the travel switch (504) for controlling the rotary electric machine (501) closing on the film bracket (40)；
The travel switch (504) is triggered when the film is adjacent to the weld seam to be measured, closes the rotary electric machine (501)
Close, the eccentric wheel (502) stops operating makes the film keep being adjacent to the weld seam to be measured.
12. weld seam inservice inspection devices according to claim 7, it is characterised in that the component that automatically resets (60) bag
Include what the first reset cradle (601) being fixedly connected with the film bracket (40) was fixedly connected with the mounting bracket (10)
Second reset cradle (602), the linear bearing (603) on first reset cradle (601), it is plugged in the straight line
Locating part (604) in bearing (603) and the second elastic component (605) being set on the locating part (604), described second
One end of elastic component (605) is resisted against on the linear bearing (603), and the other end of second elastic component (605) is resisted against
On the positive stop lug boss of locating part (604) end；
The film bracket (40) drives first reset cradle (601) and the linear bearing (603) along the locating part
(604) move to compress second elastic component (605), make the film be adjacent to carry out in-service inspection with the weld seam to be measured
Look into；After second elastic component (605) is terminated for inservice inspection, the linear bearing is promoted in the presence of elastic-restoring force
(603) moved backward along the locating part (604) and resetted with first reset cradle (601), make the film bracket (40)
Moved to the direction away from the pipeline (1) and resetted.
13. weld seam inservice inspection devices according to claim 7, it is characterised in that the inwall of the mounting bracket (10)
On be provided with multiple fixed seats (105), one end of each fixed seat (105) is fixedly connected with the mounting bracket (10),
The other end of each fixed seat (105) forms fixed otic placode (106) along the bent radial of the mounting bracket (10)；
Keeper (107) for determining position while welding to be measured, the keeper are installed on the fixed otic placode (106)
(107) adjustable length of the mounting bracket (10) is stretched out along the bearing of trend of the pipeline (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410342521.5A CN104112484B (en) | 2014-07-17 | 2014-07-17 | Nuclear power plant containment shell machinery penetration piece and its weld seam inservice inspection method and apparatus |
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| CN201410342521.5A CN104112484B (en) | 2014-07-17 | 2014-07-17 | Nuclear power plant containment shell machinery penetration piece and its weld seam inservice inspection method and apparatus |
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| CN104112484B true CN104112484B (en) | 2017-06-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3044158B1 (en) * | 2015-11-19 | 2017-11-17 | Soc Technique Pour L'energie Atomique | ASSEMBLY OF ELECTRIC PENETRATION OF TANK OF A NUCLEAR REACTOR |
| CN106984892B (en) * | 2017-04-05 | 2019-04-19 | 中国核工业第五建设有限公司 | Main steam and water supply penetration piece component mounting method in AP1000 nuclear power station |
| CN109545405A (en) * | 2018-10-29 | 2019-03-29 | 中国核工业二三建设有限公司 | A kind of tile film-taking in means for nuclear power CV container butt weld ray detection |
| FR3095274B1 (en) * | 2019-04-19 | 2021-04-02 | Framatome Sa | Device for checking a weld of a hollow longitudinal tubular element |
| CN111103135A (en) * | 2019-12-05 | 2020-05-05 | 福建福清核电有限公司 | Nuclear reactor hydrodynamic pressure type main pump mechanical seal reusability inspection method |
| CN117686520B (en) * | 2023-12-14 | 2024-07-09 | 上海砾烽智能科技有限公司 | Nuclear power station coolant pump detection device |
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| CN104112484A (en) | 2014-10-22 |
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