CN107274942A - The installation method of AP1000 nuclear power stations middle and lower part in-pile component - Google Patents
The installation method of AP1000 nuclear power stations middle and lower part in-pile component Download PDFInfo
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- CN107274942A CN107274942A CN201710404966.5A CN201710404966A CN107274942A CN 107274942 A CN107274942 A CN 107274942A CN 201710404966 A CN201710404966 A CN 201710404966A CN 107274942 A CN107274942 A CN 107274942A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/19—Reactor parts specifically adapted to facilitate handling, e.g. to facilitate charging or discharging of fuel elements
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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 Nuclear Power Station field.For reduction difficulty, shorten the time, reduce risk, the present invention proposes a kind of installation method of AP1000 nuclear power stations middle and lower part in-pile component, lay RV measurement control points and RV measurement points；Lay in-pile component control point and in-pile component measurement point；Measurement point is measured using laser tracker, the cylinder benchmark simulation coordinate system and basic model of pressure vessel is set up in 3 d modeling software according to measurement data, sets up the installation model of bottom in-pile component；The installation model of bottom in-pile component is imported into the basic model of pressure vessel and centering and ozzle group pair is carried out；Analysis calculates positioning insert and the process data processing of acceptor of energy support column obtains out positioning insert and acceptor of energy support column；Bottom in-pile component is hung in three times again, the installation for completing bottom in-pile component twice is hung out.The installation method precision of the AP1000 nuclear power stations middle and lower part in-pile component is high, and difficulty is low, and the time is short, and risk is low.
Description
Technical field
Enter the present invention relates to the bottom in-pile component in Nuclear Power Station field, more particularly to a kind of nuclear power station to AP1000
The method that row is installed.
Background technology
In AP1000 nuclear power stations, the installment work of in-pile component is that installation difficulty is maximum in equipment in nuclear island, precision most
High installment work, takes about 137 working days, and the time is most long.
Because in-pile component and pressure vessel are manufactured by different manufacturers, to meet between in-pile component and pressure vessel
Matching requirements, need to erecting bed according to actual needs processing and fabricating be arranged on radial support keyway in positioning insert and peace
The acceptor of energy support column between two auxiliary supporting plates in bottom in-pile component and secondary core support component.Meanwhile,
To complete the installment work of in-pile component, workmen need to hang in bottom in-pile component for four times and three times hang out pressure vessel,
Detailed process is as follows：
First, bottom in-pile component is hung in pressure vessel, it is rear in bottom in-pile component and pressure vessel pair to survey
The gap between the radial support key in the in-pile component of bottom and radial support keyway is measured, in order to add according to the measurement data
Work obtains the positioning insert being arranged in radial support keyway；Bottom in-pile component is measured to the distance of two auxiliary supporting plates, with
It is easy to obtain acceptor of energy support column according to measurement data processing.Then, bottom in-pile component is hung from pressure vessel
Go out, positioning insert and acceptor of energy support column are made according to the data mart modeling that measurement is obtained, and will be to positioning insert and energy
Absorber support column is installed；Then, bottom in-pile component is hung in pressure vessel again, and measures bottom in-pile component
Gap between positioning insert；Then, bottom in-pile component is hung out from pressure vessel again, and carries out positioning insert hinge
Hole and alignment pin cold charge, fluid shield erecting and welding and secondary support component are installed；Then, for the third time by bottom in-pile component
Hang in pressure vessel, and measurement draws gap, fluid shield and the lower heap between two auxiliary supporting plates and pressure vessel bottom
The distance between core plate；Then, bottom in-pile component is hung out from pressure vessel for the third time, to carry out Friction Force test, people
Hole stopple installation and the flushing work of in-pile component；Finally, bottom in-pile component is hung in pressure vessel again, under completion
The installation of portion's in-pile component.
As fully visible, when being installed using prior art to bottom in-pile component, need bottom in-pile component repeatedly
Hang in and hang out pressure vessel, handling often, causes handling risk to increase, short time consumption is long, and lift can produce each time
Certain deviation, and then cause the difficulty of the installation of bottom in-pile component, measurement big.
The content of the invention
For the installation difficulty of reduction AP1000 nuclear power stations middle and lower part in-pile component, shorten the set-up time, reduce installation risk,
The present invention proposes a kind of installation method of AP1000 nuclear power stations middle and lower part in-pile component, and the installation method comprises the following steps：
Step S1, laying RV measurements control point near pressure vessel and on the cylinder inboard wall of the pressure vessel, in institute
State on pressure vessel laying RV measurement points, and in the RV measurement points include RV flanges measurement point, core support planar survey point, connect
Wall measurement point, two auxiliary supporting plate measurement points, radial support keyway measurement point, positioning cotter way measurement point and RV ozzle measurement points；
Laser tracker is erected on RV measurement control point, to the RV flanges measurement point, the core support planar survey point,
The inwall measurement point that connects, the two auxiliary supporting plates measurement point, the radial support keyway measurement point, the positioning cotter way are surveyed
Amount point and the RV ozzles measurement point measure and obtain measurement data, according to the measurement data of the RV flanges measurement point
Draw the inner circle and central point of the upper flange of the pressure vessel, and by the origin of coordinates of the central point, the upper flange
The normal of inner circle set up the cylinder frame of reference of the pressure vessel for Z axis；
In-pile component control point is laid on the flange face of the bottom in-pile component surrounding and the bottom in-pile component,
In-pile component measurement point is laid on the bottom in-pile component, the in-pile component measurement point includes top flange upper table planar survey
Point, top flange lower surface measurement point, top flange cylindrical measurement point, radial support key measurement point, alignment pin measurement point, in heap
The upper end position measurement point of component ozzle measurement point and acceptor of energy support column；Laser tracker is erected in the heap
On component control point, to top flange upper surface measurement point, the top flange lower surface measurement point, the top flange
Cylindrical measurement point, the radial support key measurement point, the in-pile component ozzle measurement point and acceptor of energy support
The upper end position measurement point of post is measured, and obtains measurement data；According to top flange upper surface measurement point, the top
Flange undersurface measurement point and the measurement data of the top flange cylindrical measurement point draw top flange disc and the center of circle, and
Using the center of circle as the origin of coordinates, the normal of the top flange disc sets up the reference coordinate of the bottom in-pile component for Z axis
System；
Step S2, in 3 d modeling software, set up the cylinder benchmark mould of the cylinder frame of reference of the pressure vessel
Quasi-coordinate system, and heap is set up in the cylinder benchmark simulation coordinate system according to the measurement data of the core support planar survey point
Core supports the center point model of surface model and the pressure vessel, according to the measurement data of the inwall measurement point that connects described
The cylinder inboard wall model of the pressure vessel is set up in cylinder benchmark simulation coordinate system, according to the two auxiliary supporting plates measurement point
Measurement data sets up two auxiliary supporting plate models in the cylinder benchmark simulation coordinate system, according to the positioning cotter way measurement point
The alignment pin channel mould type that measurement data is set up in the cylinder benchmark simulation coordinate system on the pressure vessel, according to the footpath
The radial direction set up to the measurement data of support keyway measurement point in the cylinder benchmark simulation coordinate system on the pressure vessel
Support keyway model, according to the measurement data of the RV ozzles measurement point is set up in the cylinder benchmark simulation coordinate system
RV ozzle models, obtain the basic model of the pressure vessel；
The analog coordinate system of the frame of reference of the bottom in-pile component, and root are set up in the 3 d modeling software
According to top flange upper surface measurement point, the top flange lower surface measurement point and the top flange cylindrical measurement point
Measurement data set up top flange model, according to the measurement data of the radial support key measurement point in the analog coordinate system
The middle center line set up radial support key model and fit the radial support key model, according to the alignment pin measurement point
Measurement data sets up alignment pin model in the analog coordinate system, according to the measurement data of the in-pile component ozzle measurement point
In-pile component ozzle model is set up in the analog coordinate system, is measured according to the upper end position of the acceptor of energy support column
The measurement data of point fits the installation site of the upper end of acceptor of energy support column in the analog coordinate system, obtains described
The installation model of bottom in-pile component；
Step S3, in the 3 d modeling software, the installation model of the bottom in-pile component is imported into the pressure
In the basic model of force container, make the basic model centering for installing model and the pressure vessel of the bottom in-pile component；
The installation model of the bottom in-pile component is rotated along the Z axis of the cylinder benchmark simulation coordinate system, to the in-pile component pipe
Mouth model is grouped with the RV ozzles model, and group is less than 0.05mm to the centre deviation of formation；
Step S4, using the 3 d modeling software analysis calculate the radial support key model and the alignment pin
The installation site of the upper end in gap and the acceptor of energy support column between channel mould type and the two auxiliary supporting plates model it
Between distance；
Step S5, according to the data mart modeling positioning insert and acceptor of energy support column obtained in the step S4, it is and right
The positioning insert and the acceptor of energy support column are installed；
Step S6, the bottom in-pile component hung in the pressure vessel, and to the bottom in-pile component and
The pressure vessel carries out centering, measures the gap between the bottom in-pile component and the positioning insert；
Step S7, the bottom in-pile component hung out from the pressure vessel, and carry out positioning insert fraising and fixed
Position pin cold charge, fluid shield are installed and secondary support component is installed；
Step S8, the bottom in-pile component hung in the pressure vessel, and measure and draw two auxiliary supporting plates and institute
State the gap between the bottom of pressure vessel, the distance between fluid shield and lower core plate；
Step S9, the bottom in-pile component hung out from the pressure vessel, and carry out Friction Force test, manhole hole
Plug is installed and in-pile component is rinsed；
Step S10, the bottom in-pile component hung in the pressure vessel, and complete the bottom in-pile component
Install.
Using the installation method of the AP1000 nuclear power stations middle and lower part in-pile component in the bottom heap in AP1000 nuclear power stations
When component is installed, by being measured to pressure vessel and bottom in-pile component, and obtained according to measurement data Modeling Assembly
Go out the process data of positioning insert and acceptor of energy support column.Compared in the prior art, bottom in-pile component is hung in
The process data for drawing positioning insert and acceptor of energy support column is measured in pressure vessel, obtained positioning insert and energy
The process data precision for measuring absorber support column is high, and reduces the number of times for hanging in bottom in-pile component and hanging out pressure vessel,
The installation difficulty of in-pile component in AP1000 nuclear power stations is reduced, the set-up time is shortened, installation risk is reduced.
Preferably, in the step S1, when laying control point and measurement point, according to the control point and the measurement
The place place of point and effect carry out packet numbering, and the two control points at least 6 public measurement point adjacent with group.
So, packet numbering is carried out to control point and measurement point, can avoids omitting；At least 6, two control points adjacent with group
Public measurement point can improve the relevance for the measurement data that measurement is obtained, and then improve the essence for the measurement data that measurement is obtained
Degree.
Preferably, in the step S1, the RV flanges measurement point position is in the upper flange of the pressure vessel
8 RV flange measurement points are at least laid with circle, and in the inner circle of the upper flange；The core support planar survey point is located at
On two circumference on core support face in the pressure vessel, and 8 core support faces are at least laid with each circumference
Measurement point；It is described connect inwall measurement point position on the inwall that the cylinder of the pressure vessel is connected with the core support face not
On the three cylinder circumference overlapped, and 8 inwall measurement points that connect at least are laid with each cylinder circumference；The secondary support
Plate measurement point position is provided with least four on the lower surface of two auxiliary supporting plate and not weighed on the lower surface of two auxiliary supporting plates
The two auxiliary supporting plate measurement points closed；It is described positioning cotter way measurement point position on the pressure vessel positioning cotter way cell wall on,
And positioning cotter way measurement point of at least four on different straight lines is laid with the cell wall in each plane；The RV ozzles are surveyed
On amount point three ozzle circumference misaligned on the inwall of the hot arc outlet nozzle of the pressure vessel, and each ozzle circle
8 RV ozzle measurement points are at least laid with week.So, in the pressure for ensureing to be calculated according to the measurement data that measurement is obtained
The central point of container, the inwall of RV ozzles and on the basis of positioning the precision of geomery of cotter way, can reduce measurement work
Amount, shortens measurement and takes, reduce measurement cost.
Preferably, top flange upper surface measurement point position is in the upper surface of the top flange of the bottom in-pile component
On a circumference on, and 8 top flange upper surface measurement points are at least laid with the circumference；The top flange lower surface
Measurement point position is in being at least laid with 8 top flanges on a circumference on the lower surface of the top flange, and on the circumference
Lower surface measurement point；The top flange cylindrical measurement point is located at 3 misaligned circumference on the inwall of the top flange
On, and at least it is laid with 8 top flange cylindrical measurement points on each circumference；The radial support key measurement point position is under described
On the locating surface of radial support key on portion's in-pile component, and at least four is laid with different straight lines on each locating surface
Radial support key measurement point；The alignment pin measurement point position on the alignment pin with it is described positioning cotter way cell wall fasten
Alignment pin measurement point of at least four on different straight lines is laid with plane, and in each plane；The in-pile component ozzle
Measurement point position is on the inwall of the hot arc outlet nozzle of the bottom in-pile component on three misaligned circumference, and each circumference
On be at least laid with 8 in-pile component ozzle measurement points.So, ensureing what is calculated according to the measurement data that measurement is obtained
The central point of bottom in-pile component, the inwall of hot arc outlet nozzle, the precision of the geomery of alignment pin and radial support key
On the basis of, measurement workload can be reduced, shorten measurement and take, reduce measurement cost.
Preferably, in the step 1, when setting up the cylinder frame of reference ,+the X of the cylinder frame of reference
Point to the positioning cotter way at 0 ° of position on the pressure vessel in direction；Set up the frame of reference of the bottom in-pile component
When, the +X direction of the frame of reference of the bottom in-pile component points to the radial direction at 0 ° of position in the bottom in-pile component
Support key.So, the frame of reference of the cylinder frame of reference and bottom in-pile component is both conveniently set up, is easy to bottom heap again
The installation model of inner member, which is imported into the basic model of pressure vessel, carries out centering.
Preferably, in the step S3, model and the pressure vessel are being installed to the bottom in-pile component
When basic model carries out centering, lower surface and the reactor core branch in the pressure vessel of the top flange of the bottom in-pile component
Gap is less than 0.05mm between support face.So, can be by the gap between top flange and core support face to structure in the heap of bottom
Accuracy of alignment between the installation model of part and the basic model of pressure vessel is adjusted, and improves Virtual assemble precision, and then
Improve the precision of the process data of positioning insert.Further, the center of the in-pile component is finely adjusted, made described
Between the inwall that the outer rim of the top flange of in-pile component is connected to the cylinder of the pressure vessel with the core support face
The span in gap is 5.33 ± 0.13mm.So, the installation model and pressure that can further improve bottom in-pile component hold
Accuracy of alignment between the basic model of device, and then improve the process data of the positioning insert obtained and acceptor of energy support column
Precision.
Preferably, when the in-pile component ozzle model and the RV ozzles model are grouped, first under described
0 ° of -180 ° of radial direction on portion's in-pile component are adjusted, then to 90 ° of -270 ° of radial direction sides on the bottom in-pile component
To being adjusted, the gap difference between the in-pile component ozzle model and the RV ozzles model is set to be less than 0.25mm.This
Sample, by being adjusted in the radial direction to the installation model of bottom in-pile component at orthogonal two, can be improved in heap
Assembling precision between component ozzle model and RV ozzle models.
Preferably, the positioning insert is U-shape structure, to be embedded in the cell wall of positioning cotter way from three sides and radially prop up
Support between key, reduce the skew of radial support key in different directions, so as to improve between bottom in-pile component and pressure vessel
Accuracy of alignment.
Preferably, the laser tracker is erected to the measurement control point on the pressure vessel using magnetic force base
On, set up simple and convenient and firm.
Brief description of the drawings
Fig. 1 shows for the laying of RV flange measurement points in the installation method of AP1000 nuclear power stations middle and lower part in-pile component of the present invention
It is intended to；
Fig. 2 is the laying of inwall measurement point of connecting in the installation method of AP1000 nuclear power stations middle and lower part in-pile component of the present invention
Schematic diagram；
Fig. 3 for AP1000 nuclear power stations middle and lower part in-pile component of the present invention installation method in two auxiliary supporting plate measurement points cloth
If schematic diagram；
Fig. 4 is radial support keyway measurement point in the installation method of AP1000 nuclear power stations middle and lower part in-pile component of the present invention
Layout diagram；
Fig. 5 shows for the laying of positioning cotter way measurement in the installation method of AP1000 nuclear power stations middle and lower part in-pile component of the present invention
It is intended to；
Fig. 6 for AP1000 nuclear power stations middle and lower part in-pile component of the present invention installation method in radial support key measurement point cloth
If schematic diagram；
Fig. 7 is in-pile component ozzle measurement point in the installation method of AP1000 nuclear power stations middle and lower part in-pile component of the present invention
Layout diagram.
Embodiment
Below, carried out specifically with reference to the installation method of Fig. 1-7 pairs of AP1000 nuclear power stations middle and lower part in-pile components of the present invention
It is bright.
RV measurement points are laid on pressure vessel, and the RV measurement points include RV flanges measurement point, core support planar survey
Point, the inwall measurement point that connects, two auxiliary supporting plate measurement points, radial support keyway measurement point, positioning cotter way measurement point and RV pipes
Mouth measurement point.Wherein, RV flanges measurement point position is in the inner circle of the upper flange of pressure vessel, and upper flange inner circle up to
8 RV flange measurement points are laid with less.As shown in figure 1, laying 16 RV methods in the inner circle of the upper flange 11 of pressure vessel 1
Blue measurement point, using these RV flanges measurement points as 1 group of measurement point, and is labeled as RV-F1, RV-F2, RV- successively
F3......RV-F8......RV-F16.Core support planar survey point is located inside and outside on the core support face in pressure vessel
On two circumference, and 8 core support planar survey points are at least laid with each circumference.The inwall measurement point position that connects is held in pressure
On the inwall that connects that the cylinder of device is connected with core support face on three misaligned cylinder circumference, and each cylinder circumference is up to
8 inwall measurement points that connect are laid with less.As shown in Fig. 2 cylinder and connecting that core support face 12 is connected in pressure vessel 1
Set on inwall 13 and 16 inwall measurement points that connect are laid on three misaligned cylinder circumference, and each cylinder circumference, and from
The inwall measurement point that connects on three misaligned cylinder circumference is respectively labeled as S-A1, S-A2, S- by top to bottm
A3......S-A8......S-A16；S-B1、S-B2、S-B3......S-B8......S-B16；S-C1、S-C2、S-
C3......S-C8......S-C16.Two auxiliary supporting plate measurement point positions are on the lower surface of two auxiliary supporting plates, and two auxiliary supporting plates
Lower surface on be provided with two misaligned auxiliary supporting plate measurement points of at least four.As shown in figure 3, in pressure vessel 1 simultaneously
4 two misaligned auxiliary supporting plate measurement points are laid in corner close to two auxiliary supporting plates 2 of bottom respectively, can be labeled as BH-SF-
1、BH-SF-2、BH-SF-3......BH-SF-8.......BH-SF-16.Radial support keyway measurement point position is in pressure vessel
On radial support keyway side and convex plane on, and few 4 be respectively provided in side and convex plane be located at difference
Radial support keyway measurement point on straight line.As shown in figure 4, in the side 141 of the radial support keyway 14 of pressure vessel 1 and convex
Rise and be respectively arranged with two row radial support keyway measurement points in plane 142.Cotter way measurement point position is positioned in determining on pressure vessel
Positioning cotter way measurement of at least four on different straight lines is laid with the cell wall of position cotter way, and each on the cell wall in plane
Point.As shown in figure 5, being located at the cell wall in Different Plane in positioning cotter way 121 on core support face 12 on pressure vessel 1
On, two row positioning cotter way measurement points are laid respectively.RV ozzles measurement point position is on the inwall of the hot arc outlet nozzle of pressure vessel
On three misaligned ozzle circumference, and 8 RV ozzle measurement points are at least laid with each ozzle circumference.So, ensureing
Central point, the inwall of RV ozzles and the shape for positioning cotter way for the pressure vessel that the measurement data obtained according to measurement is calculated
On the basis of the precision of shape size, measurement workload can be reduced, shorten measurement and take, reduce measurement cost.
Installed in nuclear island near pressure vessel in place and RV measurement controls are laid on the cylinder inboard wall of pressure vessel
Point, when laying RV measurement control points, measures the place place at control point according to RV and effect carries out packet numbering, and with group
Adjacent two RV measurement public measurement points at least 6, control point.So, packet numbering is carried out to RV measurements control point,
It can avoid omitting；The two RVs measurement control point at least 6 public measurement point adjacent with group, can improve what measurement was obtained
The relevance of measurement data, and then improve the precision for the measurement data that measurement is obtained.
Laser tracker is erected on RV measurements control point, to RV flanges measurement point, core support planar survey point, connected
Inwall measurement point, two auxiliary supporting plate measurement points, radial support keyway measurement point, positioning cotter way measurement point and RV ozzle measurement points
Measure and obtain measurement data, the inner circle of the upper flange of pressure vessel is drawn according to the measurement data of RV flange measurement points
And central point, and by the origin of coordinates of the central point, the normal of the inner circle of upper flange be cylinder base that Z axis sets up pressure vessel
Conventional coordinates.Preferably, the +X direction of the cylinder frame of reference points to the positioning cotter way at 0 ° of position on pressure vessel, so as to
In setting up the cylinder frame of reference.Preferably, when RV measurements control point is located on pressure vessel, using magnetic force base by laser
Tracker is erected on RV measurements control point, is set up simple and convenient and firm.
In-pile component measurement point is laid on the in-pile component of bottom, the in-pile component measurement point includes top flange upper surface
Measurement point, top flange lower surface measurement point, top flange cylindrical measurement point, radial support key measurement point, alignment pin measurement point,
The upper end position measurement point of in-pile component ozzle measurement point and acceptor of energy support column.Wherein, top flange upper surface is surveyed
Amount point is at least laid with 8 on a circumference on the upper surface of the top flange of bottom in-pile component, and on the circumference
Top flange upper surface measurement point.Top flange lower surface measurement point position on a circumference on the lower surface of top flange,
And 8 top flange lower surface measurement points are at least laid with the circumference.Top flange cylindrical measurement point is located at top flange
On 3 misaligned circumference of flange on inwall, and 8 top flange cylindrical measurements are at least laid with each circumference of flange
Point.Radial support key measurement point position is on the locating surface of the radial support key on the in-pile component of bottom, and cloth on each locating surface
It is located at the radial support key measurement point on different straight lines provided with least four.As shown in fig. 6, the radial direction in bottom in-pile component 3
Two row radial support key measurement points are set respectively on each locating surface 311 for supporting key 31, wherein, locating surface 311 refers to radially
The face that on the support key 31 and both sides of radial support key 31 are contacted with the radial support groove fastening in pressure vessel 1.Alignment pin is measured
Point is located on alignment pin is located at difference with positioning in the plane that the cell wall of cotter way is fastened, and being laid with least four in each plane
Alignment pin measurement point on straight line.In-pile component ozzle measurement point position is on the inwall of the hot arc outlet nozzle of bottom in-pile component
On three misaligned ozzle circumference, and 8 in-pile component ozzle measurement points are at least laid with each ozzle circumference.Such as Fig. 7
It is shown, three misaligned ozzle circumference, and each ozzle circle are set on the inwall of the hot arc outlet nozzle 32 of in-pile component
12 in-pile component ozzle measurement points are laid on week, and are respectively labeled as HL-A1, HL-A2, HL-A3......HL-
A6......HL-A12；HL-B1、HL-B2、HL-B3......HL-B6......HL-B12；HL-B1、HL-B2、HL-
B3......HL-B6......HL-B12.So, in the bottom heap for ensureing to be calculated according to the measurement data that measurement is obtained
On the basis of the precision of the geomery of the central point of component, the inwall of hot arc outlet nozzle and alignment pin, measurement can be reduced
Workload, shortens measurement and takes, reduce measurement cost.
In-pile component control point is laid on the flange face of bottom in-pile component surrounding and bottom in-pile component, according in heap
The place place at component control point and effect carry out packet numbering, and two in-pile component control points adjacent with group are at least
6 public measurement points.So, it can both avoid omitting, the relevance for the measurement data that measurement is obtained can be improved again, is improved
Measure the precision of the measurement data obtained.
Laser tracker is erected on in-pile component control point, under top flange upper surface measurement point, top flange
Surface measurement point, top flange cylindrical measurement point, radial support key measurement point, in-pile component ozzle measurement point and energy absorption
The upper end position measurement point of device support column, which is measured, obtains measurement data, according to top flange upper surface measurement point, top method
Blue lower surface measurement point and the measurement data of top flange cylindrical measurement point draw top flange disc and the center of circle, and with the circle
The heart is the origin of coordinates, and the normal of top flange disc sets up the frame of reference of bottom in-pile component for Z axis.Preferably, bottom
The +X direction of the frame of reference of in-pile component points to the radial support key at 0 ° of position in the in-pile component of bottom to build
Make the frame of reference of portion's in-pile component.
In 3 d modeling software, the cylinder benchmark simulation coordinate system of the cylinder frame of reference of pressure vessel is set up.Root
Core support surface model is set up in cylinder benchmark simulation coordinate system according to the measurement data of core support planar survey point and pressure holds
The center point model of device, pressure vessel is set up according to the measurement data for the inwall measurement point that connects in cylinder benchmark simulation coordinate system
Cylinder inboard wall model, secondary branch is set up in cylinder benchmark simulation coordinate system according to the measurement data of two auxiliary supporting plate measurement points
Fagging model, radial support key is set up according to the measurement data of radial support keyway measurement point in cylinder benchmark simulation coordinate system
Channel mould type, the positioning on pressure vessel is set up according to the measurement data of positioning cotter way measurement point in cylinder benchmark simulation coordinate system
Cotter way model, sets up RV ozzle models according to the measurement data of RV ozzle measurement points in cylinder benchmark simulation coordinate system, obtains
The basic model of pressure vessel.
The analog coordinate system of the frame of reference of bottom in-pile component is set up in 3 d modeling software.According to top flange
The measurement data of upper surface measurement point, top flange lower surface measurement point and top flange cylindrical measurement point sets up top flange
Model, sets up radial support key model according to the measurement data of radial support key measurement point in analog coordinate system and fits footpath
To the center line of support key model, structure in heap is set up in analog coordinate system according to the measurement data of in-pile component ozzle measurement point
Part ozzle model, is fitted according to the measurement data of the upper end position measurement point of acceptor of energy support column in analog coordinate system
The installation site of the upper end of acceptor of energy support column, obtains the installation model of bottom in-pile component.
In 3 d modeling software, the installation model of bottom in-pile component is imported into the basic model of pressure vessel,
Make the basic model centering for installing model and pressure vessel of bottom in-pile component.Preferably, in the peace to bottom in-pile component
When the basic model of die-filling type and pressure vessel carries out centering, the lower surface and pressure vessel of the top flange of bottom in-pile component
In core support face between gap be less than 0.05mm.So, can be by the gap pair between top flange and core support face
The accuracy of alignment installed between model and the basic model of pressure vessel of bottom in-pile component.Preferably, by structure in heap
The center of part is finely adjusted, make in-pile component top flange outer rim to pressure vessel cylinder and core support face phase
The span in the gap between inwall even is 5.33 ± 0.13mm.So, it can further improve the peace of bottom in-pile component
Accuracy of alignment between the basic model of die-filling type and pressure vessel, and then improve the positioning insert and acceptor of energy branch obtained
The precision of the process data of dagger.The installation model of bottom in-pile component is rotated along the Z axis of cylinder benchmark simulation coordinate system, to heap
Inner member ozzle model is grouped with RV ozzle models, and group is less than 0.05mm to the centre deviation of formation.The structure in heap
When part ozzle model is grouped with RV ozzle models, first 0 ° of -180 ° of radial direction on the in-pile component of bottom are adjusted,
90 ° of -270 ° of radial directions on the in-pile component of bottom are adjusted again, make in-pile component ozzle model and RV ozzles model it
Between gap difference be less than 0.25mm.So, by orthogonal two peaces in the radial direction to bottom in-pile component
Die-filling type is adjusted, and can improve the assembling precision between in-pile component ozzle model and RV ozzle models.
Analyzed using 3 d modeling software calculate gap between radial support key model and alignment pin channel mould type and
The distance between the installation site of the upper end of acceptor of energy support column and two auxiliary supporting plate models.
According to the gap locating and machining insert between the radial support key model and alignment pin channel mould type calculated.It is preferred that
Ground, it is U-shape structure to process obtained positioning insert, be embedded in from three sides positioning cotter way cell wall and radial support key it
Between, reduce the skew of radial support key in different directions, so as to improve the centering between bottom in-pile component and pressure vessel
Precision.Energy is obtained according to the processing of the distance between the installation site of the upper end of acceptor of energy support column and two auxiliary supporting plate models
Measure absorber support column.After machining, positioning insert and acceptor of energy support column are installed.
After positioning insert and acceptor of energy support column installation, using lifting crane gear by bottom in-pile component
Hang in pressure vessel, and centering is carried out to bottom in-pile component and pressure vessel, measure bottom in-pile component and positioning
Gap between insert.
After the gap between bottom in-pile component and positioning insert is measured, using lifting crane gear by the heap of bottom
Component is hung out from pressure vessel, and carries out positioning insert fraising and alignment pin cold charge, fluid shield installation and secondary support group
Part installation operation.
Bottom in-pile component is hung in pressure vessel again, and measures the bottom for drawing two auxiliary supporting plates and pressure vessel
The distance between gap between portion, fluid shield and lower core plate.After being measured, again by bottom in-pile component from pressure
Hung out in force container, and carry out Friction Force test, manhole stopple and installed and in-pile component flushing.Finally bottom in-pile component is hung
Enter in pressure vessel, and complete the installation of bottom in-pile component.
Using the installation method of the AP1000 nuclear power stations middle and lower part in-pile component in the bottom heap in AP1000 nuclear power stations
When component is installed, by being measured to pressure vessel and bottom in-pile component, and obtained according to measurement data Modeling Assembly
Go out the process data of positioning insert and acceptor of energy support column.Compared in the prior art, bottom in-pile component is hung in
The process data for drawing positioning insert and acceptor of energy support column is measured in pressure vessel, obtained positioning insert and energy
The process data precision for measuring absorber support column is high, and reduces the number of times for hanging in bottom in-pile component and hanging out pressure vessel,
The installation difficulty of in-pile component in AP1000 nuclear power stations is reduced, installation risk is reduced, about 32 works of set-up time are shortened
Make day.
Claims (10)
1. a kind of installation method of AP1000 nuclear power stations middle and lower part in-pile component, it is characterised in that the installation method includes as follows
Step：
Step S1, laying RV measurements control point near pressure vessel and on the cylinder inboard wall of the pressure vessel, in the pressure
RV measurement points are laid on force container, and the RV measurement points include RV flanges measurement point, core support planar survey point, the inwall that connects and surveyed
Measure point, two auxiliary supporting plate measurement points, radial support keyway measurement point, positioning cotter way measurement point and RV ozzle measurement points；It will swash
Optical tracker system is erected on RV measurement control point, to the RV flanges measurement point, the core support planar survey point, described
Connect inwall measurement point, the two auxiliary supporting plates measurement point, the radial support keyway measurement point, the positioning cotter way measurement point
And the RV ozzles measurement point measures and obtains measurement data, drawn according to the measurement data of the RV flanges measurement point
The inner circle and central point of the upper flange of the pressure vessel, and by the origin of coordinates of the central point, in the upper flange
Round normal is the cylinder frame of reference that Z axis sets up the pressure vessel；
In-pile component control point is laid on the flange face of the bottom in-pile component surrounding and the bottom in-pile component, in institute
State on the in-pile component of bottom laying in-pile component measurement point, the in-pile component measurement point include top flange upper surface measurement point,
Top flange lower surface measurement point, top flange cylindrical measurement point, radial support key measurement point, alignment pin measurement point, structure in heap
The upper end position measurement point of part ozzle measurement point and acceptor of energy support column；Laser tracker is erected at structure in the heap
On part control point, top flange upper surface measurement point, the top flange lower surface measurement point, the top flange are justified
Post measurement point, the radial support key measurement point, the in-pile component ozzle measurement point and the acceptor of energy support column
Upper end position measurement point measure, obtain measurement data；According to top flange upper surface measurement point, the top method
Blue lower surface measurement point and the measurement data of the top flange cylindrical measurement point draw top flange disc and the center of circle, and with
The center of circle is the origin of coordinates, and the normal of the top flange disc sets up the frame of reference of the bottom in-pile component for Z axis；
Step S2, in 3 d modeling software, set up the pressure vessel the cylinder frame of reference cylinder benchmark simulation sit
Mark system, and reactor core branch is set up in the cylinder benchmark simulation coordinate system according to the measurement data of the core support planar survey point
The center point model of surface model and the pressure vessel is supportted, according to the measurement data of the inwall measurement point that connects in the cylinder
The cylinder inboard wall model of the pressure vessel is set up in benchmark simulation coordinate system, according to the measurement of the two auxiliary supporting plates measurement point
Data set up two auxiliary supporting plate models in the cylinder benchmark simulation coordinate system, according to the measurement of the positioning cotter way measurement point
The alignment pin channel mould type that data are set up in the cylinder benchmark simulation coordinate system on the pressure vessel, according to the radial direction branch
The radial support that the measurement data of support keyway measurement point is set up on the pressure vessel in the cylinder benchmark simulation coordinate system
Keyway model, the RV is set up in the cylinder benchmark simulation coordinate system according to the measurement data of the RV ozzles measurement point managed
Mouth model, obtains the basic model of the pressure vessel；
The analog coordinate system of the frame of reference of the bottom in-pile component is set up in the 3 d modeling software, and according to institute
State the survey of top flange upper surface measurement point, the top flange lower surface measurement point and the top flange cylindrical measurement point
Amount data set up top flange model, are built according to the measurement data of the radial support key measurement point in the analog coordinate system
Vertical radial support key model and the center line for fitting the radial support key model, according to the measurement of the alignment pin measurement point
Data set up alignment pin model in the analog coordinate system, according to the measurement data of the in-pile component ozzle measurement point in institute
State and in-pile component ozzle model is set up in analog coordinate system, according to the upper end position measurement point of the acceptor of energy support column
Measurement data fits the installation site of the upper end of acceptor of energy support column in the analog coordinate system, obtains the bottom
The installation model of in-pile component；
Step S3, in the 3 d modeling software, the installation model of the bottom in-pile component is imported into the pressure and held
In the basic model of device, make the basic model centering for installing model and the pressure vessel of the bottom in-pile component；Along institute
The Z axis for stating cylinder benchmark simulation coordinate system rotates the installation model of the bottom in-pile component, to the in-pile component ozzle mould
Type is grouped with the RV ozzles model, and group is less than 0.05mm to the centre deviation of formation；
Step S4, using the 3 d modeling software analysis calculate the radial support key model and the alignment pin channel mould
Between the installation site and the two auxiliary supporting plates model of the upper end in gap and the acceptor of energy support column between type
Distance；
Step S5, according to the data mart modeling positioning insert and acceptor of energy support column obtained in the step S4, and to described
Positioning insert and the acceptor of energy support column are installed；
Step S6, the bottom in-pile component hung in the pressure vessel, and to the bottom in-pile component and described
Pressure vessel carries out centering, measures the gap between the bottom in-pile component and the positioning insert；
Step S7, the bottom in-pile component hung out from the pressure vessel, and carry out positioning insert fraising and alignment pin
Cold charge, fluid shield are installed and secondary support component is installed；
Step S8, the bottom in-pile component hung in the pressure vessel, and measure and draw two auxiliary supporting plates and the pressure
The distance between gap between the bottom of force container, fluid shield and lower core plate；
Step S9, the bottom in-pile component hung out from the pressure vessel, and carry out Friction Force test, manhole stopple peace
Dress and in-pile component are rinsed；
Step S10, the bottom in-pile component hung in the pressure vessel, and complete the peace of the bottom in-pile component
Dress.
2. the installation method of AP1000 nuclear power stations middle and lower part in-pile component according to claim 1, it is characterised in that in institute
State in step S1, when laying control point and measurement point, according to the control point and the place place of the measurement point and effect
Carry out packet numbering, and the two control points at least 6 public measurement point adjacent with group.
3. the installation method of AP1000 nuclear power stations middle and lower part in-pile component according to claim 2, it is characterised in that in institute
State in step S1, in the inner circle of upper flange of the RV flanges measurement point position in the pressure vessel, and the upper flange
Inner circle on be at least laid with 8 RV flange measurement points；The core support planar survey point is located at the heap in the pressure vessel
On two circumference on core supporting surface, and 8 core support planar survey points are at least laid with each circumference；The inwall that connects
Measurement point position is in three cylinder circumference misaligned on the inwall that the cylinder of the pressure vessel is connected with the core support face
On, and at least it is laid with 8 inwall measurement points that connect on each cylinder circumference；The two auxiliary supporting plates measurement point position is in secondary branch
The misaligned two auxiliary supporting plates measurement of at least four is provided with the lower surface of fagging, and on the lower surface of two auxiliary supporting plate
Point；The positioning cotter way measurement point position is in the cell wall on the cell wall for positioning cotter way on the pressure vessel, and in each plane
On be laid with positioning cotter way measurement point of at least four on the different straight lines；The RV ozzles measurement point position is held in the pressure
On the inwall of the hot arc outlet nozzle of device on three misaligned ozzle circumference, and 8 are at least laid with each ozzle circumference
RV ozzle measurement points.
4. the installation method of AP1000 nuclear power stations middle and lower part in-pile component according to claim 3, it is characterised in that described
Top flange upper surface measurement point position, and should on a circumference on the upper surface of the top flange of the bottom in-pile component
8 top flange upper surface measurement points are at least laid with circumference；The top flange lower surface measurement point position is in the top
8 top flange lower surface measurement points are at least laid with a circumference on the lower surface of flange, and on the circumference；The top
Portion's flange cylinder measurement point position is on 3 misaligned circumference on the inwall of the top flange, and on each circumference at least
It is laid with 8 top flange cylindrical measurement points；The radial support key measurement point position is in the radial direction on the bottom in-pile component
Radial support key measurement point of at least four on different straight lines is laid with the locating surface for supporting key, and on each locating surface；
The alignment pin measurement point position is in the plane fastened on the alignment pin with the cell wall of the positioning cotter way, and in each plane
It is laid with alignment pin measurement point of at least four on different straight lines；The in-pile component ozzle measurement point position is in the bottom
On the inwall of the hot arc outlet nozzle of in-pile component on three misaligned circumference, and 8 heaps are at least laid with each circumference
Inner member ozzle measurement point.
5. the installation method of the AP1000 nuclear power stations middle and lower part in-pile component according to any one in claim 1-4, its
It is characterised by, in the step 1, when setting up the cylinder frame of reference, the +X direction of the cylinder frame of reference refers to
Positioning cotter way at 0 ° of position on the pressure vessel；It is described when setting up the frame of reference of the bottom in-pile component
The +X direction of the frame of reference of bottom in-pile component points to the radial support key at 0 ° of position in the bottom in-pile component.
6. the installation method of AP1000 nuclear power stations middle and lower part in-pile component according to claim 5, it is characterised in that in institute
State in step S3, the basic model for installing model and the pressure vessel to the bottom in-pile component carry out to it is middle when,
Gap is less than between core support face in the lower surface and the pressure vessel of the top flange of the bottom in-pile component
0.05mm。
7. according to claim 6 AP1000 nuclear power stations middle and lower part in-pile component installation method, it is characterised in that to described
The center of in-pile component is finely adjusted, make the in-pile component top flange outer rim to the pressure vessel cylinder
The span in the gap between the inwall being connected with the core support face is 5.33 ± 0.13mm.
8. the installation method of AP1000 nuclear power stations middle and lower part in-pile component according to claim 7, it is characterised in that right
When the in-pile component ozzle model and the RV ozzles model are grouped, first to 0 ° on the bottom in-pile component-
180 ° of radial directions are adjusted, then 90 ° of -270 ° of radial directions on the bottom in-pile component are adjusted, and are made described
Gap difference between in-pile component ozzle model and the RV ozzles model is less than 0.25mm.
9. the installation method of the AP1000 nuclear power stations middle and lower part in-pile component according to any one in claim 1-4, its
It is characterised by, the positioning insert is U-shape structure.
10. the installation method of the charged middle and lower part in-pile components of AP1000 according to any one in claim 1-4, it is special
Levy and be, the laser tracker is erected on the measurement control point on the pressure vessel using magnetic force base.
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| CN111310300A (en) * | 2020-01-09 | 2020-06-19 | 国核示范电站有限责任公司 | Nuclear power station reactor internals anti-break assembly bottom plate measuring method |
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