CN107221366A - The measurement installation method of primary heat transport system in AP1000 nuclear power stations - Google Patents
The measurement installation method of primary heat transport system in AP1000 nuclear power stations Download PDFInfo
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- CN107221366A CN107221366A CN201710399063.2A CN201710399063A CN107221366A CN 107221366 A CN107221366 A CN 107221366A CN 201710399063 A CN201710399063 A CN 201710399063A CN 107221366 A CN107221366 A CN 107221366A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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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 the installation for the primary heat transport system for completing AP1000 nuclear power stations, the present invention proposes a kind of measurement installation method of primary heat transport system in AP1000 nuclear power stations, and pressure vessel RV installs in place, lays control point and measurement point, measurement obtains the coordinate data of measurement point, sets up association three-dimensional system of coordinate；Set up analog coordinate system and measurement model rv, sg, mp and Virtual assemble is carried out to measurement model；Main pipeline MP retaining wall on slope data are drawn using three-dimensional modeling analysis software, to welding is grouped with pressure vessel RV after main pipeline MP RV ends progress retaining wall on slope, welding capacity is up to carrying out double measurement to main pipeline MP MP SG ends measurement point after 50% and the SG hipped end mouthful process datas that analysis draws main pipeline MP are re-started after measurement model mp is updated, steam generator SG is lifted to steam generator vertical support PAD after being completely processed and is grouped and welds with main pipeline MP, installation.This method installation accuracy is high, efficiency high, short time limit.
Description
Technical field
The present invention relates to a kind of progress of the primary heat transport system in Nuclear Power Station field, more particularly to nuclear power station to AP1000
Measure the method installed.
Background technology
In conventional nuclear, as shown in figure 1, passing through single master between pressure vessel RV and steam generator SG and main pump
Pipeline is connected, wherein, connection pressure vessel RV and steam generator SG single main pipeline is referred to as hot arc MP-H, and connection pressure holds
The single main pipeline of device RV and main pump is referred to as cold section of MP-C, and the single main pipeline for connecting steam generator SG and main pump P is referred to as U-shaped
Changeover portion MP-T.When the primary heat transport system in this kind of nuclear power station is installed, first by pressure vessel RV and steam generator
SG installs in place, and hot arc MP-H and cold section of MP-C central axis and absolute altitude are controlled followed by total powerstation and spirit level
Hot arc MP-H and cold section of MP-C installation is completed, it is micro- that main pump P then is installed into U-shaped changeover portion MP-T progress in place and as needed
Adjust, finally the U-shaped changeover portion MP-T after fine setting is installed between main pump P and steam generator SG.
And in AP1000 nuclear power stations, as shown in Fig. 2 hanging two main pump pump case PC, and this below steam generator SG
Two main pump pump case PC and steam generator SG is structure as a whole.Pressure vessel RV and steam generator SG passes through main pipe hot leg
MP-H connections, pressure vessel RV passes through two main pipelines with two main pump pump case PC below same steam generator SG
Cold section of MP-C connection, and cold section of MP-C of the two main pipelines and main pipe hot leg MP-H one cooling circuit of formation.Therefore, right
When main pipeline in this kind of nuclear power station is installed, three main pipeline pipeline sections and the pressure vessel in same cooling circuit need to be made
Group between RV or steam generator SG meets installation requirement simultaneously to relation.
As fully visible, compared to conventional nuclear, the installation accuracy to the main pipeline of AP1000 nuclear power stations requires higher, difficult
Degree is bigger, and the changeover portion of adjustment is not present in the main pipeline of AP1000 nuclear power stations, therefore uses existing installation conventional nuclear
In the method for primary heat transport system can not complete the installation of the primary heat transport system in AP1000 nuclear power stations.
Further, since AP1000 nuclear power technologies are nuclear power technologies newest at present, not yet there is more ripe mounting technique,
Also the technology without more ripe installation primary heat transport system.
The content of the invention
For the installation for the primary heat transport system for completing AP1000 nuclear power stations, the present invention proposes to lead back in a kind of AP1000 nuclear power stations
The measurement installation method of road system, the measurement installation method comprises the following steps：
Step S1, according to design and installation requirement pressure vessel RV installed in place, and pressure vessel RV install it is in place after,
Measurement site control point, and laying RV measurement points, the RV measurement point bags on the pressure vessel RV are laid at the construction field (site)
Include RV architectural features measurement point, RV installation centers measurement point and RV ozzles center measurement point；In steam generator vertical support
SG support installation center measurement points are laid on PAD；Laser tracker is erected on the site control point to the RV structures
Pattern measurement point, the RV installation centers measurement point, the RV ozzles center measurement point and SG support installation centers are surveyed
Amount point is measured, and show that the RV measurement points support installation center measurement point in the case where associating three-dimensional system of coordinate with the SG
Coordinate data；
SG control points are set near steam generator SG, and SG measurement points are laid on the steam generator SG, should
SG measurement points include SG architectural features measurement point, SG installation centers measurement point and SG ozzles center measurement point, and laser is tracked
Instrument is erected on the SG control points to be measured to the SG measurement points, draws the coordinate data of the SG measurement points；In master
Main pipeline control point is set near pipeline MP and main pipeline measurement point, the main pipeline measurement point bag are laid on the main pipeline MP
Include MP-RV ends measurement point, outer arc measurement point in MP-SG ends measurement point and MP, laser tracker is erected at the main pipeline control
The main pipeline measurement point is measured on system point, the coordinate data of the main pipeline measurement point is drawn；
Step S2, the analog coordinate system for setting up in three-dimensional modeling analysis software the association three-dimensional system of coordinate, and according to
The measurement model that obtained coordinate data sets up the pressure vessel RV under the analog coordinate system is measured in the step S1
Rv and the steam generator vertical support PAD installation model pad, and set up the steam generator SG, the main pipeline
MP and the main pipeline MP central axis lMPMeasurement model sg, mp and lmp；According to design requirement by the steam generation
Device SG measurement model sg is assembled on the installation model pad of the steam generator vertical support PAD；
Step S3, the measurement model mp of the main pipeline MP is assembled on the measurement model rv of the pressure vessel RV,
Make mouth of pipe center and the ozzle center superposition of the measurement model rv at the rv ends of the measurement model mp, the measurement model sg
Ozzle central point be located at the measurement model lmpOn, and required according to design and installation along the measurement model lmpIt is mobile described
Measurement model mp, makes the deviation of the central axis at the measurement model mp two ends be less than 0.1mm, the assembling of the measurement model mp
Complete；
Step S4, using the three-dimensional modeling analysis software assembling result in the step S3 is analyzed, drawn
Retaining wall on slope data of the main pipeline MP at two ends；
Step S5, marked slightly at the RV ends of the main pipeline MP according to the retaining wall on slope data obtained in the step S4
Omit line of cut, final line of cut and inspection datum line；
Step S6, using beveling machine according to RV of the retaining wall on slope data obtained in the step S4 to the main pipeline MP
End carries out retaining wall on slope；
Step S7, by the main pipeline MP and the pressure vessel RV weldings, and after welding capacity reaches 50%, profit
The MP- that double measurement draws the main pipeline MP is carried out with laser tracker and the MP-SG ends measurement point to the main pipeline MP
The coordinate data of SG ends measurement point；
Step S8, the number of coordinates according to the MP-SG ends measurement point that the obtained main pipeline MP is measured in the step S7
According to, the measurement model mp of the main pipeline MP is adjusted in the three-dimensional modeling analysis software, and the utilization three-dimensional
Modeling analysis software is analyzed the measurement model mp of the main pipeline MP, show that grooves of the main pipeline MP at SG ends adds
Number evidence；
Step S9, marked slightly at the SG ends of the main pipeline MP according to the retaining wall on slope data obtained in the step S8
Slightly line of cut, final line of cut and inspection datum line, and utilize beveling machine according to retaining wall on slope data to the main pipeline MP
SG ends carry out retaining wall on slope；
Step S10, after the SG hipped ends mouth of the main pipeline MP is machined, the steam generator SG is lifted to steaming
On vapour generator vertical support PAD, and according to design and installation requirement on the main pipeline MP and the steam generator SG
SG ozzles are grouped and welded, installation.
When being installed using the measurement installation method to primary heat transport system in AP1000 nuclear power stations, by actually measuring
Go out installation site relation actual between the steam generator SG in major loop and pressure vessel RV；In 3 d modeling software to master
Main pipeline MP in loop carries out Virtual assemble, makes the measurement model mp and pressure vessel RV of main pipeline measurement model rv and steaming
Vapour generator SG measurement model sg docking, and main pipeline MP measurement model mp is finely adjusted, make by pressure vessel RV's
Measurement model rv, steam generator SG measurement model sg and main pipeline MP measurement model mp connect the virtual major loop to be formed
System meets the design and installation requirement of primary heat transport system in AP1000 nuclear power stations；Then master is drawn using 3 d modeling software analysis
The retaining wall on slope data at pipeline MP two ends, and retaining wall on slope is carried out to main pipeline MP RV ends according to the retaining wall on slope data；Connect
And welding is grouped in main pipeline MP and pressure vessel RV, and the MP-SG ends after 50% to main pipeline MP are completed in welding capacity
Measurement point carries out double measurement, redefines the retaining wall on slope data at main pipeline MP SG ends, and according to the retaining wall on slope data
Retaining wall on slope is carried out to main pipeline MP SG ends, steam generator SG is lifted to steam generator after being completely processed and vertically propped up
Support on PAD, welding is grouped in the SG ends and the SG ozzles on steam generator SG for making main pipeline MP, so as to complete AP1000 cores
The installation of primary heat transport system in power station.As can be seen here, led back in using present invention measurement installation method to AP1000 nuclear power stations
When road system is installed, show that installation site actual between steam generator SG and pressure vessel RV is closed by actual measurement
System, can reduce influence of steam generator SG and pressure vessel RV the device fabrication error to installation accuracy；By being built in three-dimensional
Mould software carries out Virtual assemble to main pipeline MP, has both been easy to the rigging position of the measurement model to main pipeline MP to be adjusted, again
The retaining wall on slope number at main pipeline MP two ends when meeting design and installation requirement can be drawn using 3 d modeling software Direct Analysis
According to the retaining wall on slope data precision that analysis is drawn is high；It is grouped by main pipeline MP with installing the pressure vessel RV fixed
Welding, and the MP-SG ends measurement point progress double measurement after 50% to main pipeline MP is reached in welding capacity, regain main pipeline
MP SG ends retaining wall on slope data, so as to reduce influence of the welding deformation to installation accuracy.In addition, using present invention measurement peace
Dress method is installed to primary heat transport system in AP1000 nuclear power stations, can avoid obtaining the retaining wall on slope number at main pipeline MP two ends
Adjustment measurement repeatedly is carried out according to and to main pipeline MP, installation effectiveness is improved, the installation for shortening major loop in AP1000 nuclear power stations is applied
The work duration, reduce installation cost.
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 coordinate data that measurement is obtained, and then improve the essence for the coordinate data that measurement is obtained
Degree.
Preferably, the RV installation centers measurement point position is in the inner circle of the flange bolt hole on the pressure vessel RV,
And at least uniform 8 RV installation center measurement points in the inner circle of each flange bolt hole；The RV ozzles center measurement point position in
On the pressure vessel RV in the inner circle of RV RV ozzles, and at least uniform 8 RV ozzles in the inner circle of each RV ozzles
Center measurement point；The SG supports installation center measurement point position in the positioning screw hole on the steam generator vertical support PAD
Inner circle on, and at least uniform 8 SG supports installation center measurement point in the inner circle of each positioning bolt hole；During the SG is installed
Heart measurement point position in the inner circle in the installation bolt hole on the steam generator SG, and each installation bolt hole inner circle up to
Few uniform 8 SG installation center measurement points；The SG ozzles center measurement point position is in the SG ozzles on the steam generator SG
Inner circle on, and at least uniform 8 SG ozzles center measurement point in the inner circle of each SG ozzles；MP-RV ends measurement point position
In in the inner circle at the RV ends of the main pipeline MP, and at least uniform 8 MP-RV in the inner circle at each main pipeline MP RV ends
Hold measurement point；MP-SG ends measurement point position is in the inner circle at the SG ends of the main pipeline MP, and each main pipeline MP
At least uniform 8 MP-RV ends measurement point in the inner circle at SG ends.So, ensureing to be calculated according to the coordinate data that measurement is obtained
On the basis of the precision of the port center of the installation center, ozzle center and the main pipeline that go out, measurement workload can be reduced, shortened
Measurement is time-consuming, reduces measurement cost.
Preferably, using the installation center axis of the pressure vessel RV as the Z axis of the association three-dimensional system of coordinate, both it was easy to
Association three-dimensional system of coordinate is set up, data correlation is convenient for measuring again.
Preferably, in the step S3, when being assembled to the measurement model mp, the end of the measurement model mp
The unfitness of butt of inwall is less than 0.8mm, and group is to stage casing of the gap for the main pipe hot leg in 0-2mm, and the main pipeline MP
The SG ends for being higher than cold section of main pipeline in the RV ends 3-5mm of the main pipe hot leg, the main pipeline MP at level are higher than RV ends 0-
4mm。
Preferably, in the step S4 and the step S8, the retaining wall on slope data include retaining wall on slope length, slope
Mouth processing wall thickness and mis-cut angle deviation, and the mis-cut angle deviation is less than 1 °, to reduce retaining wall on slope difficulty.
Preferably, when carrying out retaining wall on slope to the main pipeline MP using the beveling machine, pacify on the beveling machine
Survey tool is filled, and the survey tool includes support member and target ball, and the support member is vertically to be connected by connecting plate and support bar
Connect the L-type structure to be formed, the connecting plate is fixed on the knife rest in the beveling machine by bolt, the support bar with
The knife rest is vertical, and the free end of the support bar deviates from the main pipeline MP, and the target ball is arranged on the support bar
Free end.Further, when installing the beveling machine, the target ball different angles on the mouth of pipe end face of the main pipeline are measured
The coordinate data spent at position, and according to the position of the coordinate data adjustment beveling machine.So, it is installed to by beveling machine
When on pipe end to be processed, the mounting plane of beveling machine is measured using survey tool, so that according to measurement number
It is adjusted according to the mounting plane to beveling machine, makes the mounting plane of beveling machine parallel with mouth of pipe end face, and then ensure that groove adds
Work precision.
Preferably, in the step S7, when being welded to the main pipeline MP and the pressure vessel RV, it will monitor
Target ball is placed in the cross target center frock in the main pipeline MP, and often completes one layer of welding, and measurement records once institute
State the target center coordinate of monitoring target ball；The cross target center frock includes supporting leg pedestal, target center pedestal and four supporting legs, the target center
Pedestal is fixed on the centre of the supporting leg pedestal, and the supporting leg is uniformly distributed in the peripheral side of the supporting leg pedestal,
And the supporting leg is connected through a screw thread with the supporting leg pedestal.So, can be by being located at master to monitoring target ball in welding process
Target center coordinate on pipeline MP central axis is monitored, and welding deformation amount is monitored so as to realize, to utilize monitoring
To welding deformation feedback data subsequent handling is adjusted, so as to improve the installation accuracy of primary heat transport system.
Brief description of the drawings
Fig. 1 be conventional nuclear in primary heat transport system structural representation；
Fig. 2 is the structural representation of primary heat transport system in AP1000 nuclear power stations；
Fig. 3 is the measurement point on main pipeline MP in primary heat transport system measurement installation method in AP1000 nuclear power stations of the present invention
Layout diagram；
Fig. 4 is the distribution schematic diagram of the measurement point on the mouth of pipe end face at main pipeline MP RV ends；
Fig. 5 is the schematic top plan view of primary heat transport system in the AP1000 nuclear power stations that Virtual assemble is completed；
Schematic diagram when Fig. 6 is during Virtual assemble to main pipeline MP and RV ozzles and SG ozzles progress center alignment；
The scheme of installation of beveling machine when Fig. 7 is in the present invention to main pipeline MP port progress retaining wall on slope；
Fig. 8 is the structural representation of beveling machine survey tool in the present invention；
Fig. 9 is arranged on structural representation when in main pipeline MP for the cross target center frock that uses in the present invention.
Embodiment
Below, with reference to Fig. 3-9, the measurement installation method of primary heat transport system in AP1000 nuclear power stations of the present invention is carried out in detail
Explanation.
Pressure vessel RV is lifted into nuclear island using hanging device, and pacified pressure vessel RV according to design and installation requirement
Dress is in place.
RV measurement points are laid on pressure vessel RV, the RV measurement points include RV architectural features measurement point, RV installation centers
Measurement point and RV ozzles center measurement point.Wherein, RV architectural features measurement point is to set up pressure vessel RV measurement model rv
Measurement point in measurement point, such as the end face of flange being laid on pressure vessel RV and pressure vessel RV bottom cylindricals.
RV installation centers measurement point position is in the inner circle of the flange bolt hole on pressure vessel RV, and in the inner circle of each flange bolt hole
At least uniform 8 RV installation center measurement points, the coordinate of the RV installation center measurement points on each flange bolt hole is measured
After data, the coordinate data of the central point of corresponding flange bolt hole can be calculated according to these coordinate datas, and then calculate
Draw the coordinate data of pressure vessel RV RV installation centers.RV ozzles center measurement point position is in the RV ozzles on pressure vessel RV
Inner circle on, and at least uniform 8 RV ozzles center measurement point in the inner circle of each RV ozzles so, can be obtained according to measurement
RV ozzles center measurement point coordinate data calculate RV ozzles center coordinate data.In addition, so laying RV measurements
Point, can both ensure RV installation centers, the precision at RV ozzles center calculated according to the coordinate data of RV measurement points, again might be used
To reduce measurement workload, shorten measurement time-consuming.Preferably, during RV measurement points are laid, according to the position of RV measurement points
Progress packet numbering is put and acts on, in order to avoid omitted in follow-up measurement, such as, and the RV that will be connected with main pipe hot leg MP-H
12 RV ozzles center measurement points on ozzle are divided into one group, and labeled as RV-H-01, RV-H-02, RV-H-03......RV-
H-08......RV-H-12。
SG support installation center measurement points, and SG support installation centers are laid on steam generator vertical support PAD
Measurement point position is in the inner circle of the positioning bolt hole on steam generator vertical support PAD, and the inner circle of each positioning bolt hole
On at least uniform 8 SG support installation center measurement points, in order to which the SG drawn according to measurement supports installation center measurement point
Coordinate data calculates the coordinate data of the central point of positioning bolt hole, and then calculates SG support installations according to the coordinate data
The coordinate data at center.
Measuring site control point is laid in job site in nuclear island, and adjacent two site control points are at least
6 public measurement points, i.e., in the measurement point of site control point intervisibility adjacent with the two respectively, at least 6 measurements
Point site control point intervisibility simultaneously adjacent with the two.So, when the coordinate data to measurement point is associated, it can improve
The relevance of the coordinate data of measurement point is measured, and then improves the precision of the coordinate data obtained.
Association three-dimensional system of coordinate is set up, in order to be associated with the coordinate data of different measurement points together after being measured
Under one three-dimensional system of coordinate.For convenience of the foundation for associating three-dimensional system of coordinate, the association of measurement data, with pressure vessel RV installation
Heart axis is used as the Z axis for associating three-dimensional system of coordinate.
Laser tracker is set up on control point at the scene to measure RV measurement points and SG supports installation center measurement point,
Coordinate data of these measurement points under association three-dimensional system of coordinate is obtained, so as to complete the coordinate to the measurement point on diverse location
The association of data.
SG control points are set near steam generator SG and SG measurement points are laid on steam generator SG, SG measurements
Point includes SG architectural features measurement point, SG installation centers measurement point and SG ozzles center measurement point, and by laser tracker frame
It is located on SG control points and SG measurement points is measured, draws the coordinate data of SG measurement points.Wherein, SG installation centers measurement point
In the inner circle in the installation bolt hole on steam generator SG, and at least uniform 8 SG in the inner circle in each installation bolt hole
Installation center measurement point.So, can after the coordinate data of the SG installation center measurement points on each installation bolt hole is measured
The coordinate data at the midpoint in corresponding installation bolt hole, Jin Erke are calculated according to the coordinate data of SG installation center measurement points
Calculate the coordinate data of steam generator SG SG installation centers.SG ozzles center measurement point position is on steam generator SG
SG ozzles inner circle on, and at least uniform 8 SG ozzles center measurement point in the inner circle of each SG ozzles.So, can basis
The coordinate data for the SG ozzles center measurement point that measurement is obtained calculates the coordinate data at the center of SG ozzles.
As shown in figure 3, setting main pipeline control point near main pipeline MP and main pipeline measurement being laid on main pipeline MP
Point, the main pipeline measurement point includes outer arc measurement point in MP-RV ends measurement point, MP-SG ends measurement point and MP, by laser tracker
It is erected on main pipeline control point and main pipeline measurement point is measured, draws the coordinate data of main pipeline measurement point.Wherein,
MP-RV ends measurement point position is in the inner circle at main pipeline MP RV ends, as shown in figure 4, in the inner circle at each main pipeline MP RV ends
At least uniform 8 MP-RV ends measurement point, be designated as successively MP-RV-01, MP-RV-02, MP-RV-03 ... MP-RV-
08......；MP-SG ends measurement point position is in the inner circle at main pipeline MP SG ends, and in the inner circle at each main pipeline MP SG ends
At least uniform 8 MP-RV ends measurement point.So, MP-RV ends measurement point, MP-SG ends measurement point and the MP that can be obtained according to measurement
The coordinate data of interior outer arc measurement point calculates main pipeline MP RV ends center and the coordinate data and main pipeline at SG ends center
MP cambered surface center, and then draw main pipeline MP central axis lMP。
The analog coordinate system of association three-dimensional system of coordinate is set up in three-dimensional modeling analysis software, and according to laser tracker pair
Above-mentioned measurement point measures measurement model rv and the steaming that obtained coordinate data sets up pressure vessel RV under analog coordinate system
Vapour generator vertical support PAD installation model pad, and set up in steam generator SG, main pipeline MP and main pipeline MP
Heart axis lMPMeasurement model sg, mp and lmp.Steam generator SG measurement model sg is assembled to by steam according to design requirement
On generator vertical support PAD installation model pad.
Primary heat transport system carries out Virtual assemble in three-dimensional modeling analysis software pair, i.e., by main pipeline MP measurement model mp
It is assembled on pressure vessel RV measurement model rv, as shown in figure 5, making mouth of pipe center and the measurement mould at measurement model mp rv ends
Type rv ozzle center superposition, measurement model sg ozzle central point is located at measurement model lmpOn, and required according to design and installation
Along measurement model lmpTraverse measurement model mp, makes the deviation of the central axis at measurement model mp two ends be less than 0.1mm, such as Fig. 6 institutes
Show, measurement model mp assembling is completed.Preferably, when being assembled to measurement model mp, matching requirements are：Measurement model mp
Inner wall of end unfitness of butt be less than 0.8mm, group to gap be 0-2mm, and main pipeline MP in main pipe hot leg in
The SG ends for being higher than cold section of main pipeline in the RV ends 3-5mm of the main pipe hot leg, main pipeline MP at Duan Shuiping are higher than RV ends 0-
4mm。
Assembling result is analyzed using three-dimensional modeling analysis software, retaining wall on slope numbers of the main pipeline MP at two ends is drawn
According to the retaining wall on slope data include retaining wall on slope length, retaining wall on slope wall thickness and mis-cut angle deviation.Add to reduce follow-up groove
Work difficulty, when the mis-cut angle deviation that analysis is drawn is more than 1 °, need to be finely adjusted to measurement model mp, until mis-cut angle is inclined
Difference is less than 1 °.
The retaining wall on slope data obtained according to three-dimensional modeling analysis software are marked roughly at main pipeline MP RV ends
Line of cut, final line of cut and inspection datum line, wherein, the spacing between rough line of cut and main pipeline MP RV ends port
Less than retaining wall on slope length, the spacing between final line of cut and pipeline MP RV ends port is equal to retaining wall on slope length, checks
It is more than retaining wall on slope length with the spacing between datum line and pipeline MP RV ends port.Such as, when retaining wall on slope length is
During 100mm, the spacing between rough line of cut and pipeline MP RV ends port is 90mm, checks the RV ends with datum line pipeline MP
Spacing between port is 120mm.So, during retaining wall on slope, retaining wall on slope result is entered using inspection datum line
Row is checked, it is ensured that retaining wall on slope precision.
As shown in fig. 7, beveling machine 1 to be arranged on to main pipeline MP to be processed RV ends, and installed on beveling machine 1 just like figure
Survey tool 2 shown in 8, the survey tool 2 includes support member 21 and target ball 22, wherein, support member 21 is by the He of connecting plate 211
Support bar 212 vertically connects the L-type structure formed, and connecting plate 211 is fixed on the knife rest in beveling machine by bolt,
Support bar 212 is vertical with knife rest, and the free end of support bar 212 deviates from main pipeline MP, and target ball 22 is arranged on oneself of support bar 212
On end.So, when beveling machine being installed, the different angles using laser tracker to target ball on main pipeline MP RV ends end face
Coordinate data at position is measured, such as, respectively to target ball 22 be located at main pipeline MP RV ends end face on 0 °, 90 °,
Coordinate data at 180 ° and 270 ° of positions is measured, and the coordinate data obtained according to measurement is to the mounting plane of beveling machine
It is adjusted, until target ball 22 is located at the RV end pipes of the coordinate and main pipeline MP on main pipeline MP RV ends end face at diverse location
Level interval and vertical spacing between mouth center is equal, and the mounting plane of beveling machine is put down with main pipeline MP RV ends end face
OK.Then, retaining wall on slope is carried out to main pipeline MP RV ends according to retaining wall on slope data using beveling machine, until machining.
Main pipeline MP is transported in nuclear island using transloading equipment, and according to RV end of the design and installation requirement to main pipeline MP
Welding is grouped with the RV ozzles on pressure vessel RV.After reaching 50% due to welding capacity, the welding that follow-up welding is produced becomes
Shape amount is minimum, therefore after welding capacity reaches 50%, main pipeline MP MP-SG ends measurement point is carried out using laser tracker secondary
Measurement, draws the coordinate data of main pipeline MP MP-SGdaunt measurement points.Preferably, to main pipeline MP RV ends and pressure
When RV ozzles on container RV are welded, as shown in figure 9, by the prison in the cross target center frock 3 in main pipeline MP
The evolution amount of target ball 4 is surveyed as welding deformation feedback data, in order to workmen according to the feedback data to subsequently applying
Work process is adjusted, and improves the installation accuracy of primary heat transport system.Wherein, cross target center frock 3 includes supporting leg pedestal 31, target center
Pedestal 32 and four supporting legs 33, and target center pedestal 32 is fixed on the installation groove positioned at the centre of supporting leg pedestal 31
In, four supporting legs 33 are uniformly distributed in the peripheral side of supporting leg pedestal 31, and supporting leg 33 is connected through a screw thread with supporting leg pedestal 31.This
Sample, after cross target center frock is arranged in main pipeline MP, can make the target center of monitoring target ball be located at supervisor by screwing supporting leg
Road MP central axis lMPOn.In welding process, one layer of welding is often completed, one is carried out to monitoring target ball using laser tracker
Secondary measurement, and record the target center coordinate that measurement is obtained.
The coordinate data obtained according to the double measurement of main pipeline MP MP-SG ends measurement point, analyzes soft in three-dimensional modeling
Adjustment is updated to main pipeline MP measurement model in part, then using three-dimensional modeling analysis software again to main pipeline MP's
Measurement model mp is analyzed, and draws retaining wall on slope data of the main pipeline MP at SG ends.
The retaining wall on slope data main pipeline MP of the main pipeline MP that is drawn according to three-dimensional modeling analysis software at SG ends
SG ends mark rough line of cut, final line of cut and inspection datum line, and using beveling machine according to retaining wall on slope data pair
Main pipeline MP SG ends carry out retaining wall on slope.
After main pipeline MP SG hipped ends mouth is machined, steam generator SG is lifted to steam using crane gear and sent out
On raw device vertical support PAD, and steam generator SG is adjusted according to design and installation requirement, completes main pipeline MP and steam
The group pair of SG ozzles on generator SG, and the SG pipes in group on the SG ends and steam generator SG to after the completion of to main pipeline MP
Mouth is welded, it is to be welded after the completion of, primary heat transport system installation.
When being installed using the measurement installation method to primary heat transport system in AP1000 nuclear power stations, by actually measuring
Go out installation site relation actual between the steam generator SG in major loop and pressure vessel RV；In 3 d modeling software to master
Main pipeline MP in loop carries out Virtual assemble, makes the measurement model mp and pressure vessel RV of main pipeline measurement model rv and steaming
Vapour generator SG measurement model sg docking, and main pipeline MP measurement model mp is finely adjusted, make by pressure vessel RV's
Measurement model rv, steam generator SG measurement model sg and main pipeline MP measurement model mp connect the virtual major loop to be formed
System meets the design and installation requirement of primary heat transport system in AP1000 nuclear power stations；Then master is drawn using 3 d modeling software analysis
The retaining wall on slope data at pipeline MP two ends, and retaining wall on slope is carried out to main pipeline MP RV ends according to the retaining wall on slope data；Connect
And welding is grouped in main pipeline MP and pressure vessel RV, and the MP-SG ends after 50% to main pipeline MP are completed in welding capacity
Measurement point carries out double measurement, redefines the retaining wall on slope data at main pipeline MP SG ends, and according to the retaining wall on slope data
Retaining wall on slope is carried out to main pipeline MP SG ends, steam generator SG is lifted to steam generator after being completely processed and vertically propped up
Support on PAD, welding is grouped in the SG ends and the SG ozzles on steam generator SG for making main pipeline MP, so as to complete AP1000 cores
The installation of primary heat transport system in power station.As can be seen here, led back in using present invention measurement installation method to AP1000 nuclear power stations
When road system is installed, show that installation site actual between steam generator SG and pressure vessel RV is closed by actual measurement
System, can reduce influence of steam generator SG and pressure vessel RV the device fabrication error to installation accuracy；By being built in three-dimensional
Mould software carries out Virtual assemble to main pipeline MP, has both been easy to the rigging position of the measurement model to main pipeline MP to be adjusted, again
The retaining wall on slope number at main pipeline MP two ends when meeting design and installation requirement can be drawn using 3 d modeling software Direct Analysis
According to the retaining wall on slope data precision that analysis is drawn is high；It is grouped by main pipeline MP with installing the pressure vessel RV fixed
Welding, and the MP-SG ends measurement point progress double measurement after 50% to main pipeline MP is reached in welding capacity, regain main pipeline
MP SG ends retaining wall on slope data, so as to reduce influence of the welding deformation to installation accuracy.In addition, using present invention measurement peace
Dress method is installed to primary heat transport system in AP1000 nuclear power stations, can avoid obtaining the retaining wall on slope number at main pipeline MP two ends
Adjustment measurement repeatedly is carried out according to and to main pipeline MP, installation effectiveness is improved, the installation for shortening major loop in AP1000 nuclear power stations is applied
The work duration, reduce installation cost.
Claims (9)
1. a kind of measurement installation method of primary heat transport system in AP1000 nuclear power stations, it is characterised in that the measurement installation method bag
Include following steps：
Step S1, according to design and installation requirement pressure vessel RV installed in place, and pressure vessel RV install it is in place after, applying
Measurement site control point, and the laying RV measurement points on the pressure vessel RV are laid in work scene, and the RV measurement points include RV
Architectural feature measurement point, RV installation centers measurement point and RV ozzles center measurement point；On steam generator vertical support PAD
Lay SG support installation center measurement points；Laser tracker is erected on the site control point RV architectural features are surveyed
Point, the RV installation centers measurement point, the RV ozzles center measurement point and SG support installation center measurements is measured to click through
Row measurement, and show that the RV measurement points support number of coordinates of the installation center measurement point in the case where associating three-dimensional system of coordinate with the SG
According to；
SG control points, and the laying SG measurement points on the steam generator SG are set near steam generator SG, and the SG is surveyed
Amount point includes SG architectural features measurement point, SG installation centers measurement point and SG ozzles center measurement point, by laser tracker frame
It is located on the SG control points and the SG measurement points is measured, draws the coordinate data of the SG measurement points；In main pipeline
Main pipeline control point is set near MP and main pipeline measurement point is laid on the main pipeline MP, the main pipeline measurement point includes
Outer arc measurement point in MP-RV ends measurement point, MP-SG ends measurement point and MP, is erected at the main pipeline by laser tracker and controls
The main pipeline measurement point is measured on point, the coordinate data of the main pipeline measurement point is drawn；
Step S2, the analog coordinate system for setting up in three-dimensional modeling analysis software the association three-dimensional system of coordinate, and according to described
Measured in step S1 obtained coordinate data set up under the analog coordinate system pressure vessel RV measurement model rv and
The installation model pad of the steam generator vertical support PAD, and set up the steam generator SG, the main pipeline MP with
And measurement model sg, mp and l of the central axis of the main pipeline MPmp；According to design requirement by the steam generator SG's
Measurement model sg is assembled on the installation model pad of the steam generator vertical support PAD；
Step S3, the measurement model mp of the main pipeline MP is assembled on the measurement model rv of the pressure vessel RV, makes institute
State mouth of pipe center and the ozzle center superposition of the measurement model rv at measurement model mp rv ends, the pipe of the measurement model sg
Mouth central point is located at the measurement model lmpOn, and required according to design and installation along the measurement model lmpThe mobile measurement
Model mp, makes the deviation of the central axis at the measurement model mp two ends be less than 0.1mm, the assembling of the measurement model mp is complete
Into；
Step S4, using the three-dimensional modeling analysis software assembling result in the step S3 is analyzed, drawn described
Retaining wall on slope data of the main pipeline MP at two ends；
Step S5, marked and cut roughly at the RV ends of the main pipeline MP according to the retaining wall on slope data obtained in the step S4
Secant, final line of cut and inspection datum line；
Step S6, using beveling machine the RV ends of the main pipeline MP are entered according to the retaining wall on slope data obtained in the step S4
Row retaining wall on slope；
Step S7, by the main pipeline MP and the pressure vessel RV weldings, and after welding capacity reaches 50%, using swashing
Optical tracker system carries out the MP-SG ends that double measurement draws the main pipeline MP with the MP-SG ends measurement point to the main pipeline MP
The coordinate data of measurement point；
Step S8, the coordinate data according to the MP-SG ends measurement point that the obtained main pipeline MP is measured in the step S7,
The measurement model mp of the main pipeline MP is adjusted in the three-dimensional modeling analysis software, and utilizes the three-dimensional modeling point
Analysis software is analyzed the measurement model mp of the main pipeline MP, draws retaining wall on slope numbers of the main pipeline MP at SG ends
According to；
Step S9, marked and cut roughly at the SG ends of the main pipeline MP according to the retaining wall on slope data obtained in the step S8
Secant, final line of cut and inspection datum line, and using beveling machine according to SG of the retaining wall on slope data to the main pipeline MP
End carries out retaining wall on slope；
Step S10, after the SG hipped ends mouth of the main pipeline MP is machined, the steam generator SG is lifted to steam and sent out
On raw device vertical support PAD, and the SG on the main pipeline MP and the steam generator SG is managed according to design and installation requirement
Mouth is grouped and welded, installation.
2. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 1, it is characterised in that
In the step S1, when laying control point and measurement point, according to the control point and the place place of the measurement point and work
With carrying out packet numbering, and the two control points at least 6 public measurement point adjacent with group.
3. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 2, it is characterised in that institute
RV installation centers measurement point position is stated in the inner circle of the flange bolt hole on the pressure vessel RV, and each flange bolt hole
At least uniform 8 RV installation center measurement points in inner circle；The RV ozzles center measurement point position is in RV on the pressure vessel RV
RV ozzles inner circle on, and at least uniform 8 RV ozzles center measurement point in the inner circle of each RV ozzles；The SG branch
Installation center measurement point position is supportted in the inner circle of the positioning screw hole on the steam generator vertical support PAD, and each positioning
At least uniform 8 SG supports installation center measurement point in the inner circle of bolt hole；The SG installation centers measurement point position is steamed in described
In the inner circle in the installation bolt hole on vapour generator SG, and in the inner circle in each installation bolt hole at least uniform 8 SG installations
Heart measurement point；The SG ozzles center measurement point position is in the inner circle of the SG ozzles on the steam generator SG, and each SG
At least uniform 8 SG ozzles center measurement point in the inner circle of ozzle；MP-RV ends measurement point position is in the RV of the main pipeline MP
In the inner circle at end, and at least uniform 8 MP-RV ends measurement point in the inner circle at each main pipeline MP RV ends；The MP-SG
Measurement point position is held in the inner circle at the SG ends of the main pipeline MP, and it is at least equal in the inner circle at each main pipeline MP SG ends
8 MP-RV ends measurement points of cloth.
4. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 3, it is characterised in that with
The installation center axis of the pressure vessel RV is the Z axis for associating three-dimensional system of coordinate.
5. the measurement installation method of primary heat transport system in the AP1000 nuclear power stations according to any one in claim 1-4,
Characterized in that, in the step S3, when being assembled to the measurement model mp, the inner wall of end of the measurement model mp
Unfitness of butt be less than 0.8mm, group to gap be 0-2mm, and the main pipeline MP in main pipe hot leg stage casing level
The SG ends that place is higher than cold section of main pipeline in the RV ends 3-5mm of the main pipe hot leg, the main pipeline MP are higher than RV ends 0-4mm.
6. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 5, it is characterised in that
In the step S4 and the step S8, the retaining wall on slope data include retaining wall on slope length, retaining wall on slope wall thickness and beveling
Angular deviation, and the mis-cut angle deviation is less than 1 °.
7. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 5, it is characterised in that
When carrying out retaining wall on slope to the main pipeline MP using the beveling machine, survey tool, and the survey are installed on the beveling machine
Amount instrument includes support member and target ball, and the support member is vertically to connect the L-type structure formed, institute by connecting plate and support bar
State connecting plate to be fixed on the knife rest in the beveling machine by bolt, the support bar is vertical with the knife rest, and institute
The free end for stating support bar deviates from the main pipeline MP, and the target ball is arranged on the free end of the support bar.
8. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 6, it is characterised in that
When the beveling machine is installed, number of coordinates of the target ball on the mouth of pipe end face of the main pipeline at Difference angles is measured
According to, and according to the position of the coordinate data adjustment beveling machine.
9. the measurement installation method of primary heat transport system in AP1000 nuclear power stations according to claim 8, it is characterised in that
In the step S7, when being welded to the main pipeline MP and the pressure vessel RV, monitoring target ball is placed on positioned at institute
State in the cross target center frock in main pipeline MP, and often complete one layer of welding, measurement records once the target center of the monitoring target ball
Coordinate；The cross target center frock includes supporting leg pedestal, target center pedestal and four supporting legs, and the target center pedestal is fixed on institute
State the centre of supporting leg pedestal, the supporting leg is uniformly distributed in the peripheral side of the supporting leg pedestal, and the supporting leg with it is described
Supporting leg pedestal is connected through a screw thread.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891228A (en) * | 2017-12-05 | 2018-04-10 | 中国核工业第五建设有限公司 | A kind of Nuclear power plant main pipeline erecting and welding deformation monitoring method |
| CN108278997A (en) * | 2017-12-29 | 2018-07-13 | 中国核工业二三建设有限公司 | A kind of nuclear power station main equipment control net and its method for building up |
| CN108680140A (en) * | 2018-05-28 | 2018-10-19 | 中国核工业二三建设有限公司 | Reactor core internals install the method for building up of auxiliary coordinates |
| CN110534215A (en) * | 2019-08-05 | 2019-12-03 | 中国核工业华兴建设有限公司 | A kind of Pipe installing depth of parallelism inspection method |
| CN111220041A (en) * | 2019-12-11 | 2020-06-02 | 苏州热工研究院有限公司 | Nuclear power plant primary loop system installation process attitude monitoring system and method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3741164A (en) * | 1971-03-03 | 1973-06-26 | Foster Wheeler Corp | Sodium heated steam generator |
| CN1924562A (en) * | 2006-10-13 | 2007-03-07 | 核动力运行研究所 | Main pipe welding seam ray detection and positioning device for nuclear power station steam generator |
| CN102169736A (en) * | 2011-01-19 | 2011-08-31 | 中国核工业第五建设有限公司 | Installing method for main pipeline of coolant system of nuclear power station |
| CN102592692A (en) * | 2012-01-06 | 2012-07-18 | 中国核工业二三建设有限公司 | Method for installing steam generator in nuclear island of nuclear power plant |
| CN102637463A (en) * | 2012-04-11 | 2012-08-15 | 中国核工业二三建设有限公司 | Method for installing main loop system in nuclear island of nuclear power plant |
| CN104200021A (en) * | 2014-08-28 | 2014-12-10 | 台山核电合营有限公司 | Simulation method for nuclear island main loop equipment installation |
| CN104464848A (en) * | 2012-01-06 | 2015-03-25 | 中国核工业二三建设有限公司 | Method for installing steam generator in nuclear island of nuclear power station |
| US20160232996A1 (en) * | 2015-02-10 | 2016-08-11 | Nuscale Power, Llc | Steam generator with inclined tube sheet |
| US20160351279A1 (en) * | 2012-04-17 | 2016-12-01 | Bwxt Nuclear Operations Group, Inc. | Positional encoder and control rod position indicator for nuclear reactor using same |
-
2017
- 2017-05-31 CN CN201710399063.2A patent/CN107221366B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3741164A (en) * | 1971-03-03 | 1973-06-26 | Foster Wheeler Corp | Sodium heated steam generator |
| CN1924562A (en) * | 2006-10-13 | 2007-03-07 | 核动力运行研究所 | Main pipe welding seam ray detection and positioning device for nuclear power station steam generator |
| CN102169736A (en) * | 2011-01-19 | 2011-08-31 | 中国核工业第五建设有限公司 | Installing method for main pipeline of coolant system of nuclear power station |
| CN102592692A (en) * | 2012-01-06 | 2012-07-18 | 中国核工业二三建设有限公司 | Method for installing steam generator in nuclear island of nuclear power plant |
| CN104464848A (en) * | 2012-01-06 | 2015-03-25 | 中国核工业二三建设有限公司 | Method for installing steam generator in nuclear island of nuclear power station |
| CN102637463A (en) * | 2012-04-11 | 2012-08-15 | 中国核工业二三建设有限公司 | Method for installing main loop system in nuclear island of nuclear power plant |
| US20160351279A1 (en) * | 2012-04-17 | 2016-12-01 | Bwxt Nuclear Operations Group, Inc. | Positional encoder and control rod position indicator for nuclear reactor using same |
| CN104200021A (en) * | 2014-08-28 | 2014-12-10 | 台山核电合营有限公司 | Simulation method for nuclear island main loop equipment installation |
| US20160232996A1 (en) * | 2015-02-10 | 2016-08-11 | Nuscale Power, Llc | Steam generator with inclined tube sheet |
| WO2016130186A1 (en) * | 2015-02-10 | 2016-08-18 | Nuscale Power, Llc | Steam generator with inclined tube sheet |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891228A (en) * | 2017-12-05 | 2018-04-10 | 中国核工业第五建设有限公司 | A kind of Nuclear power plant main pipeline erecting and welding deformation monitoring method |
| CN107891228B (en) * | 2017-12-05 | 2020-01-21 | 中国核工业第五建设有限公司 | Method for monitoring welding deformation during installation of main pipeline of nuclear power station |
| CN108278997A (en) * | 2017-12-29 | 2018-07-13 | 中国核工业二三建设有限公司 | A kind of nuclear power station main equipment control net and its method for building up |
| CN108278997B (en) * | 2017-12-29 | 2021-10-19 | 中国核工业二三建设有限公司 | Main equipment control network of nuclear power station and establishment method thereof |
| CN108680140A (en) * | 2018-05-28 | 2018-10-19 | 中国核工业二三建设有限公司 | Reactor core internals install the method for building up of auxiliary coordinates |
| CN111594664A (en) * | 2019-02-20 | 2020-08-28 | 中国核工业第五建设有限公司 | Prefabricated pipeline field installation process |
| CN111594664B (en) * | 2019-02-20 | 2022-05-13 | 中国核工业第五建设有限公司 | Prefabricated pipeline field installation process |
| CN110534215A (en) * | 2019-08-05 | 2019-12-03 | 中国核工业华兴建设有限公司 | A kind of Pipe installing depth of parallelism inspection method |
| CN110534215B (en) * | 2019-08-05 | 2021-05-11 | 中国核工业华兴建设有限公司 | Pipeline installation parallelism checking method |
| CN111220041A (en) * | 2019-12-11 | 2020-06-02 | 苏州热工研究院有限公司 | Nuclear power plant primary loop system installation process attitude monitoring system and method |
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