CN107221366B - The measurement installation method of primary heat transport system in AP1000 nuclear power station - Google Patents

The measurement installation method of primary heat transport system in AP1000 nuclear power station Download PDF

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Publication number
CN107221366B
CN107221366B CN201710399063.2A CN201710399063A CN107221366B CN 107221366 B CN107221366 B CN 107221366B CN 201710399063 A CN201710399063 A CN 201710399063A CN 107221366 B CN107221366 B CN 107221366B
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measurement
main pipeline
installation
measurement point
point
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CN107221366A (en
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郭强
孔丽朵
李建
徐家桢
居海兵
宋巧林
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China Nuclear Industry Fifth Construction Co Ltd
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China Nuclear Industry Fifth Construction Co Ltd
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C17/00Monitoring; Testing ; Maintaining
    • G21C17/017Inspection or maintenance of pipe-lines or tubes in nuclear installations
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The present invention relates to Nuclear Power Station fields.For the installation of the primary heat transport system of completion AP1000 nuclear power station, the present invention proposes a kind of measurement installation method of primary heat transport system in AP1000 nuclear power station, and pressure vessel RV installation is in place, lays control point and measurement point, measurement obtains the coordinate data of measurement point, establishes association three-dimensional system of coordinate;It establishes analog coordinate system and measurement model rv, sg, mp and Virtual assemble is carried out to measurement model;The retaining wall on slope data of main pipeline MP are obtained using three-dimensional modeling analysis software, welding is grouped with pressure vessel RV to after the end the RV progress retaining wall on slope of main pipeline MP, welding capacity is up to carrying out double measurement to the end the MP-SG measurement point of main pipeline MP after 50% and re-start after updating measurement model mp to analyze the SG hipped end mouth process data for obtaining main pipeline MP, steam generator SG is lifted to being grouped and welding with main pipeline MP on steam generator vertical support PAD after the processing is completed, is installed.This method installation accuracy is high, high-efficient, short time limit.

Description

The measurement installation method of primary heat transport system in AP1000 nuclear power station
Technical field
The present invention relates to the primary heat transport system progress in Nuclear Power Station field more particularly to a kind of pair of AP1000 nuclear power station The method for measuring installation.
Background technique
In conventional nuclear, as shown in Figure 1, passing through single master between pressure vessel RV and steam generator SG and main pump Pipeline connection, wherein the single main pipeline of connection pressure vessel RV and steam generator SG is known as hot arc MP-H, and connection pressure is held The single main pipeline of device RV and main pump is known 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 being installed to the primary heat transport system in this kind of nuclear power station, first by pressure vessel RV and steam generator SG installation is in place, controls followed by total station and level central axis and absolute altitude to hot arc MP-H and cold section of MP-C The installation of hot arc MP-H and cold section of MP-C are completed, it is micro- that main pump P is then installed U-shaped changeover portion MP-T progress in place and as needed It adjusts, finally the U-shaped changeover portion MP-T after fine tuning is installed between main pump P and steam generator SG.
And in AP1000 nuclear power station, 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 pass through main pipe hot leg MP-H connection, pressure vessel RV pass through two main pipelines with two main pump pump case PC being located at below the 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 forms a cooling circuit.Therefore, right When main pipeline in this kind of nuclear power station is installed, three main pipeline pipeline sections and the pressure vessel in the same cooling circuit need to be made Group between RV or steam generator SG meets installation requirement to relationship simultaneously.
To sum up, compared to conventional nuclear, higher, hardly possible is required to the installation accuracy of the main pipeline of AP1000 nuclear power station Degree is bigger, and the changeover portion of adjustment is not present in the main pipeline of AP1000 nuclear power station, therefore uses existing installation conventional nuclear In the method for primary heat transport system be unable to complete the installation of the primary heat transport system in AP1000 nuclear power station.
In addition, since AP1000 nuclear power technology is current newest nuclear power technology, there has been no more mature mounting technique, Also the technology of not more mature installation primary heat transport system.
Summary of the invention
For complete AP1000 nuclear power station primary heat transport system installation, the present invention proposes to lead back in a kind of AP1000 nuclear power station The measurement installation method of road system, the measurement installation method include the following steps:
Step S1, pressure vessel RV is installed in place according to design installation requirement, and after pressure vessel RV installation is in place, Measurement site control point is laid at the construction field (site), and RV measurement point, the RV measurement point packet are laid on the pressure vessel RV Include RV structure feature measurement point, RV installation center measurement point and RV ozzle center measurement point;In steam generator vertical support SG is laid on PAD supports installation center measurement point;Laser tracker is erected on the site control point to the RV structure Pattern measurement point, the RV installation center measurement point, RV ozzle center measurement point and SG support installation center are surveyed Amount point measures, and obtains the RV measurement point with SG support installation center measurement point in the case where being associated with three-dimensional system of coordinate Coordinate data;
The control point SG is set near steam generator SG, and lays SG measurement point on the steam generator SG, it should SG measurement point includes SG structure feature measurement point, SG installation center measurement point and SG ozzle center measurement point, and laser is tracked Instrument is erected on the control point SG and measures to the SG measurement point, obtains the coordinate data of the SG measurement point;In master Pipeline MP is nearby arranged main pipeline control point and lays main pipeline measurement point, the main pipeline measurement point packet on the main pipeline MP It includes the end MP-RV measurement point, outer arc measurement point in the end MP-SG measurement point and MP, laser tracker is erected at the main pipeline control The main pipeline measurement point is measured on system point, obtains the coordinate data of the main pipeline measurement point;
Step S2, it is analyzed in three-dimensional modeling and establishes the analog coordinate system for being associated with three-dimensional system of coordinate in software, and according to The coordinate data measured in the step S1 establishes the measurement model of the pressure vessel RV under the analog coordinate system The installation model pad of rv and the steam generator vertical support PAD, and establish the steam generator SG, the main pipeline The central axis l of MP and the main pipeline MPMPMeasurement model sg, mp and lmp;According to design requirement by the steam generation The measurement model sg of device 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, It is overlapped the nozzle center at the end rv of the measurement model mp and the ozzle center of the measurement model rv, the measurement model sg Ozzle central point be located at the measurement model lmpOn, and according to design installation requirement along the measurement model lmpDescribed in movement Measurement model mp makes the deviation of the central axis at the both ends the measurement model mp be less than 0.1mm, the assembly of the measurement model mp It completes;
Step S4, the assembly result in the step S3 is analyzed using three-dimensional modeling analysis software, is obtained Retaining wall on slope data of the main pipeline MP at both ends;
Step S5, the retaining wall on slope data according to obtained in the step S4 mark slightly at the end RV of the main pipeline MP Slightly cutting line, final cutting line and inspection reference line;
Step S6, using beveling machine retaining wall on slope data according to obtained in the step S4 to the RV of the main pipeline MP End carries out retaining wall on slope;
Step S7, by the main pipeline MP and the pressure vessel RV welding, and after welding capacity reaches 50%, benefit With laser tracker and the MP- that double measurement obtains the main pipeline MP is carried out to the end the MP-SG measurement point of the main pipeline MP The coordinate data of the end SG measurement point;
Step S8, according to the number of coordinates of the end the MP-SG measurement point of the main pipeline MP measured in the step S7 According to, the three-dimensional modeling analysis software in the measurement model mp of the main pipeline MP is adjusted, and utilize the three-dimensional Modeling analysis software analyzes the measurement model mp of the main pipeline MP, show that groove of the main pipeline MP at the end SG adds Number evidence;
Step S9, the retaining wall on slope data according to obtained in the step S8 mark slightly at the end SG of the main pipeline MP Slightly cutting line, final cutting line and inspection reference line, and utilize beveling machine according to retaining wall on slope data to the main pipeline MP The end SG carry out retaining wall on slope;
Step S10, the SG hipped end mouth of the main pipeline MP after processing is completed, the steam generator SG is lifted to steaming On vapour generator vertical support PAD, and according to design installation requirement on the main pipeline MP and the steam generator SG SG ozzle is grouped and welds, and is installed.
When being installed using the measurement installation method to primary heat transport system in AP1000 nuclear power station, obtained by actual measurement Actual installation site relationship between steam generator SG in major loop and pressure vessel RV out;In 3 d modeling software to master Main pipeline MP in circuit carries out Virtual assemble, makes measurement model rv and the steaming of the measurement model mp and pressure vessel RV of main pipeline The measurement model sg of vapour generator SG is docked, and is finely adjusted to the measurement model mp of main pipeline MP, is made by pressure vessel RV's The measurement model mp of the measurement model sg and main pipeline MP of measurement model rv, steam generator SG connect the virtual major loop to be formed System meets the design installation requirement of primary heat transport system in AP1000 nuclear power station;Then master is obtained using 3 d modeling software analysis The retaining wall on slope data at the both ends pipeline MP, and retaining wall on slope is carried out according to RV end of the retaining wall on slope data to main pipeline MP;It connects Welding is grouped in main pipeline MP and pressure vessel RV, and to the end MP-SG of main pipeline MP after welding capacity completion 50% Measurement point carries out double measurement, redefines the retaining wall on slope data at the end SG of main pipeline MP, and according to the retaining wall on slope data Retaining wall on slope is carried out to the end SG of main pipeline MP, steam generator SG is lifted to steam generator vertically prop up after the processing is completed It supports on PAD, makes the end SG of main pipeline MP and the SG ozzle on steam generator SG that welding be grouped, to complete AP1000 core The installation of primary heat transport system in power station.It can be seen that using present invention measurement installation method to being led back in AP1000 nuclear power station When road system is installed, show that actual installation site is closed between steam generator SG and pressure vessel RV by actual measurement System, can reduce influence of the device fabrication error of steam generator SG and pressure vessel RV to installation accuracy;By being built in three-dimensional Mould software carries out Virtual assemble to main pipeline MP, and not only the rigging position convenient for the measurement model to main pipeline MP was adjusted, but also It can use 3 d modeling software and directly analyze the retaining wall on slope number for obtaining the both ends when meeting design installation requirement main pipeline MP According to it is high to analyze the retaining wall on slope data precision obtained;It is grouped in the pressure vessel RV for fixing main pipeline MP with installation Welding, and double measurement is carried out to the end the MP-SG measurement point of main pipeline MP after welding capacity reaches 50%, regain main pipeline MP the end SG retaining wall on slope data, to reduce influence of the welding deformation to installation accuracy.In addition, using present invention measurement peace Dress method installs primary heat transport system in AP1000 nuclear power station, can avoid in the retaining wall on slope number for obtaining the both ends main pipeline MP Adjustment measurement repeatedly is carried out according to and to main pipeline MP, improves installation effectiveness, the installation for shortening major loop in AP1000 nuclear power station is applied The work duration reduces 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 are grouped number, and two control points adjacent in group at least 6 public measurement points. In this way, being grouped number to control point and measurement point, can avoid omitting;At least 6, two control points adjacent in group The relevance for the coordinate data that measurement obtains can be improved in public measurement point, and then improves the essence for the coordinate data that measurement obtains Degree.
Preferably, the RV installation center measurement point position is in the inner circle of the flange bolt hole on the pressure vessel RV, And 8 RV installation center measurement points are at least evenly distributed in the inner circle of each flange bolt hole;RV ozzle center measurement point position in On the pressure vessel RV in the inner circle of the RV ozzle of RV, and 8 RV ozzles are at least evenly distributed in the inner circle of each RV ozzle Center measurement point;The SG support installation center measurement point position is in the positioning screw hole on the steam generator vertical support PAD Inner circle on, and be at least evenly distributed with 8 SG in the inner circle of each positioning bolt hole and support installation center measurement points;In the SG installation Heart measurement point position on the steam generator SG installation bolt hole inner circle on, and it is each installation bolt hole inner circle up to It is evenly distributed with 8 SG installation center measurement points less;SG ozzle center measurement point position is in the SG ozzle on the steam generator SG Inner circle on, and in the inner circle of each SG ozzle at least be evenly distributed with 8 SG ozzle center measurement points;The end MP-RV measurement point position In in the inner circle at the end RV of the main pipeline MP, and 8 MP-RV are at least evenly distributed in the inner circle at the end RV of each main pipeline MP Hold measurement point;The end MP-SG measurement point position is in the inner circle at the end SG of the main pipeline MP, and each main pipeline MP 8 end MP-RV measurement points are at least evenly distributed in the inner circle at the end SG.In this way, being calculated in guarantee according to the coordinate data that measurement obtains On the basis of the precision of the port center of installation center out, ozzle center and main pipeline, measurement workload can be reduced, shortened Measurement is time-consuming, reduces measurement cost.
Preferably, it is the Z axis of the association three-dimensional system of coordinate with the installation center axis of the pressure vessel RV, was both convenient for Association three-dimensional system of coordinate is established, and is convenient for measuring data correlation.
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 inner wall is less than 0.8mm, and group is 0-2mm, and the middle section of the main pipe hot leg in the main pipeline MP to gap It is higher than the end the RV 3-5mm of the main pipe hot leg at level, cold section of main pipeline of the end SG in the main pipeline MP is higher than the end RV 0- 4mm。
Preferably, in the step S4 and the step S8, the retaining wall on slope data include retaining wall on slope length, slope Mouthful 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 Measuring tool is filled, and the measuring tool includes supporting element and target ball, and the supporting element is vertically to be connected by connecting plate and support rod 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 rod with The knife rest is vertical, and the free end of the support rod deviates from the main pipeline MP, and the target ball is mounted on the support rod Free end.Further, when installing the beveling machine, the target ball different angles on the nozzle end face of the main pipeline are measured The coordinate data at position is spent, and adjusts the position of the beveling machine according to the coordinate data.In this way, being installed to by beveling machine It when on pipe end to be processed, is measured using mounting plane of the measuring tool to beveling machine, thus according to measurement number It is adjusted according to the mounting plane to beveling machine, it is parallel with nozzle end face to make the mounting plane of beveling machine, and then guarantee that groove adds Work precision.
Preferably, it in the step S7, when being welded to the main pipeline MP and the pressure vessel RV, will monitor Target ball is placed in the cross target center tooling in the main pipeline MP, and one layer of welding of every completion, measurement record primary institute State the target center coordinate of monitoring target ball;The cross target center tooling 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.In this way, in the welding process, it can be by being located at master to monitoring target ball Target center coordinate on the central axis of pipeline MP is monitored, and is monitored to realize to welding deformation amount, to utilize monitoring To welding deformation feedback data subsequent handling is adjusted, to improve the installation accuracy of primary heat transport system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the primary heat transport system in conventional nuclear;
Fig. 2 is the structural schematic diagram of primary heat transport system in AP1000 nuclear power station;
Fig. 3 is the measurement point that primary heat transport system measures in installation method on main pipeline MP in AP1000 nuclear power station of the present invention Layout diagram;
Fig. 4 is the distribution schematic diagram of the measurement point on the nozzle end face at the end RV of main pipeline MP;
Fig. 5 is the schematic top plan view of primary heat transport system in the AP1000 nuclear power station of Virtual assemble completion;
Fig. 6 is schematic diagram when Virtual assemble is in the process aligned main pipeline MP with RV ozzle and SG ozzle progress center;
Fig. 7 is the scheme of installation of beveling machine when carrying out retaining wall on slope in the present invention to the port of main pipeline MP;
Fig. 8 is the structural schematic diagram of beveling machine measuring tool in the present invention;
Fig. 9 is structural schematic diagram when cross target center tooling used in the present invention is mounted in main pipeline MP.
Specific embodiment
In the following, being carried out to the measurement installation method of primary heat transport system in AP1000 nuclear power station of the present invention detailed in conjunction with Fig. 3-9 Explanation.
Pressure vessel RV is lifted into nuclear island using hanging device, and is pacified pressure vessel RV according to design installation requirement Dress is in place.
RV measurement point is laid on pressure vessel RV, which includes RV structure feature measurement point, RV installation center Measurement point and RV ozzle center measurement point.Wherein, RV structure feature measurement point is to establish the measurement model rv of pressure vessel RV Measurement point in measurement point, such as the end face of flange and pressure vessel RV bottom cylindrical that are laid on pressure vessel RV. RV installation center 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 8 RV installation center measurement points are at least evenly distributed with, in the coordinate for measuring the RV installation center measurement point on each flange bolt hole 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 Obtain the coordinate data of the RV installation center of pressure vessel RV.RV ozzle center measurement point position is in the RV ozzle on pressure vessel RV Inner circle on, and in the inner circle of each RV ozzle at least be evenly distributed with 8 RV ozzle center measurement points, in this way, can be obtained according to measurement RV ozzle center measurement point coordinate data calculate RV ozzle center coordinate data.In addition, laying RV measurement in this way Point can not only guarantee the precision of the RV installation center being calculated according to the coordinate data of RV measurement point, RV ozzle center, but also can Workload is measured to reduce, it is time-consuming to shorten measurement.Preferably, during laying RV measurement point, according to the position of RV measurement point It sets and acts on and be grouped number, in order to avoid omitted in subsequent measurement, for example, the RV that will be connect with main pipe hot leg MP-H 12 RV ozzle center measurement points on ozzle are divided into one group, and are labeled as RV-H-01, RV-H-02, RV-H-03......RV- H-08......RV-H-12。
SG is laid on steam generator vertical support PAD and supports installation center measurement point, and the SG supports installation center 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 be at least evenly distributed with 8 SG and support installation center measurement points, in order to the SG support installation center measurement point that is obtained according to measurement Coordinate data calculates the coordinate data of the central point of positioning bolt hole, and then calculates SG support installation according to the coordinate data The coordinate data at center.
Measuring site control point is laid in construction site in nuclear island, and two adjacent 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 adjacent with the two simultaneously.In this way, can be improved when the coordinate data to measurement point is associated 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 established, 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 of association three-dimensional system of coordinate, the association of measurement data, in the installation of pressure vessel RV Z axis of the mandrel line as association three-dimensional system of coordinate.
Laser tracker is set up on control point at the scene to measure RV measurement point and SG support installation center measurement point, These measurement points are obtained in the coordinate data being associated under three-dimensional system of coordinate, to complete the coordinate to the measurement point on different location The association of data.
The control point SG is set near steam generator SG and lays SG measurement point on steam generator SG, SG measurement Point includes SG structure feature measurement point, SG installation center measurement point and SG ozzle center measurement point, and by laser tracker frame It is located on the control point SG and SG measurement point is measured, obtain the coordinate data of SG measurement point.Wherein, SG installation center measurement point In the inner circle of installation bolt hole on steam generator SG, and 8 SG are at least evenly distributed in the inner circle of each installation bolt hole Installation center measurement point.In this way, after the coordinate data for measuring the SG installation center measurement point on each installation bolt hole, it can The coordinate data at the midpoint of corresponding installation bolt hole, Jin Erke are calculated according to the coordinate data of SG installation center measurement point The coordinate data of the SG installation center of steam generator SG is calculated.SG ozzle center measurement point position is on steam generator SG SG ozzle inner circle on, and in the inner circle of each SG ozzle at least be evenly distributed with 8 SG ozzle center measurement points.In this way, can basis The coordinate data for the SG ozzle center measurement point that measurement obtains calculates the coordinate data at the center of SG ozzle.
As shown in figure 3, main pipeline control point is arranged near main pipeline MP and lays main pipeline measurement on main pipeline MP Point, which includes the end MP-RV measurement point, outer arc measurement point in the end MP-SG measurement point and MP, by laser tracker It is erected on main pipeline control point and main pipeline measurement point is measured, obtain the coordinate data of main pipeline measurement point.Wherein, The end MP-RV measurement point position is in the inner circle at the end RV of main pipeline MP, as shown in figure 4, in the inner circle at the end RV of each main pipeline MP At least be evenly distributed with 8 end MP-RV measurement points, be successively denoted as MP-RV-01, MP-RV-02, MP-RV-03 ... MP-RV- 08......;The end MP-SG measurement point position is in the inner circle at the end SG of main pipeline MP, and in the inner circle at the end SG of each main pipeline MP At least it is evenly distributed with 8 end MP-RV measurement points.In this way, the end MP-RV measurement point, the end MP-SG measurement point and the MP that can be obtained according to measurement The coordinate data of interior outer arc measurement point calculates the end the RV center of main pipeline MP and the coordinate data and main pipeline at the end SG center The cambered surface center of MP, and then obtain the central axis l of main pipeline MPMP
The analog coordinate system of association three-dimensional system of coordinate is established in three-dimensional modeling analysis software, and according to laser tracker pair The coordinate data that above-mentioned measurement point measures establishes measurement model rv and the steaming of pressure vessel RV under analog coordinate system The installation model pad of vapour generator vertical support PAD, and establish in steam generator SG, main pipeline MP and main pipeline MP Mandrel line lMPMeasurement model sg, mp and lmp.The measurement model sg of steam generator SG is assembled to steam according to design requirement On the installation model pad of generator vertical support PAD.
Primary heat transport system carries out Virtual assemble in three-dimensional modeling analysis software pair, i.e., by the measurement model mp of main pipeline MP It is assembled on the measurement model rv of pressure vessel RV, as shown in figure 5, making nozzle center and the measurement mould at the end rv of measurement model mp The ozzle center of type rv is overlapped, and the ozzle central point of measurement model sg is located at measurement model lmpOn, and according to design installation requirement Along measurement model lmpTraverse measurement model mp makes the deviation of the central axis at the both ends measurement model mp be less than 0.1mm, such as Fig. 6 institute Show, the assembly of measurement model mp is completed.Preferably, when being assembled to measurement model mp, matching requirements are as follows: measurement model mp The unfitness of butt of inner wall of end be less than 0.8mm, group is 0-2mm to gap, and in the main pipe hot leg in main pipeline MP It is higher than the end the RV 3-5mm of the main pipe hot leg at Duan Shuiping, cold section of main pipeline of the end SG in main pipeline MP is higher than the end RV 0- 4mm。
Assembly result is analyzed using three-dimensional modeling analysis software, obtains main pipeline MP in the retaining wall on slope number at both ends 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 subsequent groove Work difficulty need to be finely adjusted measurement model mp when the mis-cut angle deviation that analysis obtains is greater than 1 °, 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 mark roughly at the end RV of main pipeline MP Cutting line, final cutting line and inspection reference line, wherein the spacing between rough cutting line and the end the RV port of main pipeline MP Less than retaining wall on slope length, the spacing between the end the RV port of final cutting line and pipeline MP is equal to retaining wall on slope length, checks It is greater than retaining wall on slope length with the spacing between reference line and the end the RV port of pipeline MP.For example, when retaining wall on slope length is When 100mm, the spacing between the end the RV port of rough cutting line and pipeline MP is 90mm, checks the end RV for using reference line pipeline MP Spacing between port is 120mm.In this way, during retaining wall on slope, using check reference line to retaining wall on slope result into Row checks, it is ensured that retaining wall on slope precision.
As shown in fig. 7, beveling machine 1 to be mounted on to the end RV of main pipeline MP to be processed, and install on beveling machine 1 just like figure Measuring tool 2 shown in 8, the measuring tool 2 include supporting element 21 and target ball 22, wherein supporting element 21 is by 211 He of connecting plate The L-type structure that vertically connection is formed of support rod 212, and connecting plate 211 is fixed on the knife rest in beveling machine by bolt, Support rod 212 is vertical with knife rest, and the free end of support rod 212 deviates from main pipeline MP, and target ball 22 is mounted on oneself of support rod 212 By on end.In this way, when installation beveling machine, the different angle using laser tracker to target ball on the end the RV end face of main pipeline MP Coordinate data at position measures, for example, target ball 22 is located at respectively 0 ° on the end the RV end face of main pipeline MP, 90 °, Coordinate data at 180 ° and 270 ° of positions measures, 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 pipe of coordinate and main pipeline MP on the end the RV end face of main pipeline MP at different location Horizontal space and vertical spacing between mouth center are equal, and the mounting plane of beveling machine and the end the RV end face of main pipeline MP are flat Row.Then, retaining wall on slope is carried out according to RV end of the retaining wall on slope data to main pipeline MP using beveling machine, until completing the process.
Main pipeline MP is transported in nuclear island using transloading equipment, and according to design installation requirement to the end RV of main pipeline MP Welding is grouped with the RV ozzle on pressure vessel RV.After reaching 50% due to welding capacity, the welding that subsequent welding generates becomes Shape amount is minimum, therefore after welding capacity reaches 50%, it is carried out using MP-SG end measurement point of the laser tracker to main pipeline MP secondary Measurement, obtains the coordinate data of the MP-SGdaunt measurement point of main pipeline MP.Preferably, to main pipeline MP the end RV and pressure When RV ozzle on container RV is welded, as shown in figure 9, by the prison in the cross target center tooling 3 being mounted in main pipeline MP The evolution amount of target ball 4 is surveyed as welding deformation feedback data, in order to which construction personnel applies according to the feedback data to subsequent Work process is adjusted, and improves the installation accuracy of primary heat transport system.Wherein, cross target center tooling 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 can make the target center for monitoring target ball be located at supervisor after cross target center tooling is mounted in main pipeline MP by screwing supporting leg The central axis l of road MPMPOn.In the welding process, every to complete one layer of welding, one is carried out to monitoring target ball using laser tracker Secondary measurement, and record the target center coordinate that measurement obtains.
According to the coordinate data that the double measurement of the end the MP-SG measurement point of main pipeline MP obtains, analyzed in three-dimensional modeling soft Adjustment is updated to the measurement model of main pipeline MP in part, then using three-dimensional modeling analysis software again to main pipeline MP's Measurement model mp is analyzed, and obtains main pipeline MP in the retaining wall on slope data at the end SG.
The retaining wall on slope data main pipeline MP of the main pipeline MP that is obtained according to three-dimensional modeling analysis software at the end SG The end SG marks rough cutting line, final cutting line and inspection reference line, and using beveling machine according to retaining wall on slope data pair The end SG of main pipeline MP carries out retaining wall on slope.
Main pipeline MP SG hipped end mouth after processing is completed, using lifting equipment by steam generator SG lift to steam send out On raw device vertical support PAD, and steam generator SG is adjusted according to design installation requirement, completes main pipeline MP and steam The group pair of SG ozzle on generator SG, and the SG on the end SG and steam generator SG after the completion to main pipeline MP is managed in group Mouth is welded, and after the completion of to be welded, primary heat transport system is installed.
When being installed using the measurement installation method to primary heat transport system in AP1000 nuclear power station, obtained by actual measurement Actual installation site relationship between steam generator SG in major loop and pressure vessel RV out;In 3 d modeling software to master Main pipeline MP in circuit carries out Virtual assemble, makes measurement model rv and the steaming of the measurement model mp and pressure vessel RV of main pipeline The measurement model sg of vapour generator SG is docked, and is finely adjusted to the measurement model mp of main pipeline MP, is made by pressure vessel RV's The measurement model mp of the measurement model sg and main pipeline MP of measurement model rv, steam generator SG connect the virtual major loop to be formed System meets the design installation requirement of primary heat transport system in AP1000 nuclear power station;Then master is obtained using 3 d modeling software analysis The retaining wall on slope data at the both ends pipeline MP, and retaining wall on slope is carried out according to RV end of the retaining wall on slope data to main pipeline MP;It connects Welding is grouped in main pipeline MP and pressure vessel RV, and to the end MP-SG of main pipeline MP after welding capacity completion 50% Measurement point carries out double measurement, redefines the retaining wall on slope data at the end SG of main pipeline MP, and according to the retaining wall on slope data Retaining wall on slope is carried out to the end SG of main pipeline MP, steam generator SG is lifted to steam generator vertically prop up after the processing is completed It supports on PAD, makes the end SG of main pipeline MP and the SG ozzle on steam generator SG that welding be grouped, to complete AP1000 core The installation of primary heat transport system in power station.It can be seen that using present invention measurement installation method to being led back in AP1000 nuclear power station When road system is installed, show that actual installation site is closed between steam generator SG and pressure vessel RV by actual measurement System, can reduce influence of the device fabrication error of steam generator SG and pressure vessel RV to installation accuracy;By being built in three-dimensional Mould software carries out Virtual assemble to main pipeline MP, and not only the rigging position convenient for the measurement model to main pipeline MP was adjusted, but also It can use 3 d modeling software and directly analyze the retaining wall on slope number for obtaining the both ends when meeting design installation requirement main pipeline MP According to it is high to analyze the retaining wall on slope data precision obtained;It is grouped in the pressure vessel RV for fixing main pipeline MP with installation Welding, and double measurement is carried out to the end the MP-SG measurement point of main pipeline MP after welding capacity reaches 50%, regain main pipeline MP the end SG retaining wall on slope data, to reduce influence of the welding deformation to installation accuracy.In addition, using present invention measurement peace Dress method installs primary heat transport system in AP1000 nuclear power station, can avoid in the retaining wall on slope number for obtaining the both ends main pipeline MP Adjustment measurement repeatedly is carried out according to and to main pipeline MP, improves installation effectiveness, the installation for shortening major loop in AP1000 nuclear power station is applied The work duration reduces installation cost.

Claims (9)

1. the measurement installation method of primary heat transport system in a kind of AP1000 nuclear power station, which is characterized in that the measurement installation method packet Include following steps:
Step S1, pressure vessel RV is installed in place according to design installation requirement, and after pressure vessel RV installation is in place, applied Measurement site control point is laid at work scene, and RV measurement point is laid on the pressure vessel RV, which includes RV Structure feature measurement point, RV installation center measurement point and RV ozzle center measurement point;On steam generator vertical support PAD It lays SG and supports installation center measurement point;Laser tracker is erected on the site control point, the RV structure feature is surveyed Point, the RV installation center measurement point, RV ozzle center measurement point and SG support installation center measurement is measured to click through Row measurement, and obtain the RV measurement point with SG support installation center measurement point in the number of coordinates being associated under three-dimensional system of coordinate According to;
The control point SG is set near steam generator SG, and lays SG measurement point on the steam generator SG, which surveys Amount point includes SG structure feature measurement point, SG installation center measurement point and SG ozzle center measurement point, by laser tracker frame It is located on the control point SG and the SG measurement point is measured, obtain the coordinate data of the SG measurement point;In main pipeline MP is nearby arranged main pipeline control point and lays main pipeline measurement point on the main pipeline MP, which includes Laser tracker is erected at the main pipeline and controlled by outer arc measurement point in the end MP-RV measurement point, the end MP-SG measurement point and MP The main pipeline measurement point is measured on point, obtains the coordinate data of the main pipeline measurement point;
Step S2, the analog coordinate system of the association three-dimensional system of coordinate is established in three-dimensional modeling analysis software, and according to described The coordinate data measured in step S1 established under the analog coordinate system pressure vessel RV measurement model rv and The installation model pad of the steam generator vertical support PAD, and establish 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 The nozzle center for stating the end rv of measurement model mp is overlapped with the ozzle center of the measurement model rv, the pipe of the measurement model sg Mouth central point is located at the measurement model lmpOn, and according to design installation requirement along the measurement model lmpThe mobile measurement Model mp makes the deviation of the central axis at the both ends the measurement model mp be less than 0.1mm, and the assembly of the measurement model mp is complete At;
Step S4, the assembly result in the step S3 is analyzed using three-dimensional modeling analysis software, is obtained described Retaining wall on slope data of the main pipeline MP at both ends;
Step S5, the retaining wall on slope data according to obtained in the step S4 are marked at the end RV of the main pipeline MP and are cut roughly Secant, final cutting line and inspection reference line;
Step S6, using beveling machine retaining wall on slope data according to obtained in the step S4 to the end RV of the main pipeline MP into Row retaining wall on slope;
Step S7, by the main pipeline MP and the pressure vessel RV welding, and after welding capacity reaches 50%, using swash Optical tracker system carries out the end MP-SG that double measurement obtains the main pipeline MP with the end the MP-SG measurement point to the main pipeline MP The coordinate data of measurement point;
Step S8, according to the coordinate data of the end the MP-SG measurement point of the main pipeline MP 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 analyzes the measurement model mp of the main pipeline MP, obtains the main pipeline MP in the retaining wall on slope number at the end SG According to;
Step S9, the retaining wall on slope data according to obtained in the step S8 are marked at the end SG of the main pipeline MP and are cut roughly Secant, final cutting line and inspection reference line, and utilize beveling machine according to retaining wall on slope data to the SG of the main pipeline MP End carries out retaining wall on slope;
Step S10, the SG hipped end mouth of the main pipeline MP after processing is completed, by the steam generator SG lift to steam send 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 installation requirement Mouth is grouped and welds, and is installed.
2. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 1, which is characterized in that In the step S1, when laying control point and measurement point, according to the place place and work of the control point and the measurement point It is numbered with being grouped, and two control points adjacent in group at least 6 public measurement points.
3. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 2, which is characterized in that institute RV installation center measurement point position is stated in the inner circle of the flange bolt hole on the pressure vessel RV, and each flange bolt hole 8 RV installation center measurement points are at least evenly distributed in inner circle;RV ozzle center measurement point position is in RV on the pressure vessel RV RV ozzle inner circle on, and in the inner circle of each RV ozzle at least be evenly distributed with 8 RV ozzle center measurement points;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 It is at least evenly distributed with 8 SG in the inner circle of bolt hole and supports installation center measurement point;The SG installation center measurement point position is in the steaming In the inner circle of installation bolt hole on vapour generator SG, and at least it is evenly distributed in 8 SG installations in the inner circle of each installation bolt hole Heart measurement point;SG ozzle center measurement point position is in the inner circle of the SG ozzle on the steam generator SG, and each SG 8 SG ozzle center measurement points are at least evenly distributed in the inner circle of ozzle;The end MP-RV measurement point position is in the RV of the main pipeline MP In the inner circle at end, and 8 end MP-RV measurement points are at least evenly distributed in the inner circle at the end RV of each main pipeline MP;The MP-SG Hold measurement point position in the inner circle at the end SG of the main pipeline MP, and in the inner circle at the end SG of each main pipeline MP at least 8 end MP-RV measurement points of cloth.
4. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 3, which is characterized in that with The installation center axis of the pressure vessel RV is the Z axis of the association three-dimensional system of coordinate.
5. according to claim 1 in AP1000 nuclear power station described in any one of -4 primary heat transport system measurement installation method, It is 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 is 0-2mm to gap, and the middle section of the main pipe hot leg in the main pipeline MP is horizontal Place is higher than the end the RV 3-5mm of the main pipe hot leg, and cold section of main pipeline of the end SG in the main pipeline MP is higher than the end RV 0-4mm.
6. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 5, which is characterized 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 station according to claim 5, which is characterized in that When carrying out retaining wall on slope to the main pipeline MP using the beveling machine, measuring tool, and the survey are installed on the beveling machine Amount tool includes supporting element and target ball, and the supporting element is the L-type structure that formation is vertically connected by connecting plate and support rod, institute It states on the knife rest that connecting plate is fixed in the beveling machine by bolt, the support rod is vertical with the knife rest, and institute The free end of support rod is stated away from the main pipeline MP, the target ball is mounted on the free end of the support rod.
8. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 6, which is characterized in that When the beveling machine is installed, number of coordinates of the target ball on the nozzle end face of the main pipeline at Difference angles is measured According to, and adjust according to the coordinate data position of the beveling machine.
9. the measurement installation method of primary heat transport system in AP1000 nuclear power station according to claim 8, which is characterized 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 It states in the cross target center tooling in main pipeline MP, and one layer of welding of every completion, the primary target center for monitoring target ball of measurement record Coordinate;The cross target center tooling 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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