CN106949315A - The installation method of main steam line in AP1000 nuclear power stations - Google Patents
The installation method of main steam line in AP1000 nuclear power stations Download PDFInfo
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- CN106949315A CN106949315A CN201710218520.3A CN201710218520A CN106949315A CN 106949315 A CN106949315 A CN 106949315A CN 201710218520 A CN201710218520 A CN 201710218520A CN 106949315 A CN106949315 A CN 106949315A
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- pipe
- main steam
- pipeline section
- steam line
- mouth
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
Abstract
The present invention relates to Nuclear Power Station field.To improve installation accuracy and efficiency, the present invention proposes that measurement draws its coordinate after a kind of installation method of main steam line in AP1000 nuclear power stations, setting measurement point；Set up measurement model m1And m2And obtain outlet spout A1And A2Central point coordinate, theoretical centerline axis L and theoretical model m3；Calculate main steam line P two ends and mouth of pipe A1And A2Apart from l1And l2；Extend m1And m2Central axis obtain P the first theoretical welding position and the second theoretical welding position；Along measurement model m1Central axis insertion m3Analysis draws m3And the deviation of deviation of the theoretical model of each pipeline section relative to theoretical centerline L in the y-axis direction；Adjust m2With wall penetration piece sleeve pipe, until m3Installation requirement is met with the merging precision of the measurement model of wall penetration piece sleeve pipe；Length needed for the installation of main steam line is calculated, and to being installed after main steam line progress cutting processing；Main steam line Q is installed using same method.The installation method installation accuracy is high, and installation effectiveness is high.
Description
Technical field
The present invention relates to the installation method of main steam line in Nuclear Power Station field, more particularly to AP1000 nuclear power stations.
Background technology
AP1000 nuclear power stations are the nuclear power stations using the passive type presurized water reactor of the third generation, at present, not yet there is the installation of maturation
Construction technology.Main steam line is the main of steam generator in coupled reaction heap factory building, containment penetration and steam turbine
Passage, compared to the main steam line in conventional nuclear, the pipeline wall thickness of the main steam line in AP1000 nuclear power stations is relative
Thicker, bore is larger, group pair and installation accuracy require higher.In addition, bypass duct platform is to be welded to main steam pipe at the construction field (site)
On road, therefore, when installing main steam line, pipe deforming problem caused by the welding of bypass duct platform need to be considered.
When carrying out nuclear island construction, the sequence of construction of the nuclear island in conventional nuclear：Civil engineering is first carried out, and is completed in civil engineering
Nuclear power generating equipment and main steam line are installed afterwards；And the sequence of construction of the nuclear island in AP1000 nuclear power stations：While civil engineering is carried out
Nuclear power generating equipment and main steam line are installed.
As fully visible, because nuclear island sequence of construction is different, the specification of main steam line to be installed is different, and existing peace
The group pair and installation essence of main steam line of AP1000 nuclear power stations can not be met by filling the method for the main steam line of conventional nuclear
Degree, therefore the main steam pipe of AP1000 nuclear power stations can not be completed using the method for the main steam line of existing installation conventional nuclear
The installation in road.
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 main steam line.
The content of the invention
For complete AP1000 nuclear power stations main steam line installation, while meeting the main steam line of AP1000 nuclear power stations
Group pair and installation accuracy requirement, the present invention proposes a kind of installation method of main steam line in AP1000 nuclear power stations, the installation
Method comprises the following steps：
Step S1, the mouth of pipe A that is docked with main steam line P of barrier shield cylinder penetration piece sleeve pipe in reactor building1With
The mouth of pipe A that the wall penetration piece sleeve pipe of auxiliary plant is docked with the main steam line P2End face outer rim on set one respectively
Measurement point set, and the measurement point set includes the measurement point that at least eight is angularly distributed in the end face outer rim of the mouth of pipe；
The measurement point is measured using Point Measurement instrument and standard of the measurement point in the AP1000 nuclear power stations is drawn
Coordinate (x under three-dimensional system of coordinateSurvey,ySurvey,zSurvey)；
Step S2, the analog coordinate system for setting up in three-dimensional modeling analysis software the standard three dimensional coordinate system, and according to
The coordinate of the measurement point obtained in the step S1 sets up the barrier shield cylinder penetration piece under the analog coordinate system
The measurement model m of sleeve pipe1With the measurement model m of the wall penetration piece sleeve pipe2, and calculate the mouth of pipe A1Central point
a1Coordinate and the mouth of pipe A2Central point a2Coordinate；
According to the gross data of the barrier shield cylinder penetration piece sleeve pipe and the wall penetration piece sleeve pipe in the simulation
The theoretical centerline axis L of the barrier shield cylinder penetration piece sleeve pipe and the wall penetration piece sleeve pipe is set up under coordinate system；
The main steam pipe is set up according to the gross data of the main steam line P in the three-dimensional modeling analysis software
Road P theoretical model m3, and theoretical model m3Including the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model
m32, the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34；
Step S3, calculated according to the gross data of the main steam line P in the mouth of pipe at the main steam line P two ends
Heart point g1And g2Coordinate, the mouth of pipe central point g1Close to the mouth of pipe A of barrier shield penetration piece sleeve pipe1, the mouth of pipe central point g2
Close to the mouth of pipe A of wall penetration piece sleeve pipe2；
According to the mouth of pipe central point g1And g2Coordinate and the mouth of pipe A1Central point a1Coordinate and the mouth of pipe
A2Central point a2Coordinate, calculate the mouth of pipe central point g1With the mouth of pipe A1Central point a1The distance between l1And
The mouth of pipe central point g2With the mouth of pipe A2Central point a2The distance between l2；
Step S4, with the mouth of pipe A1Central point a1For starting point, extend the measurement model m1Central axis, and prolong
Length is l1, obtain centers of the main steam line P close to the first theoretical welding position of described reactor building one end
Point h1；With the mouth of pipe A2Central point a2For starting point, extend the measurement model m2Central axis, and extending length be l2,
Obtain central point hs of the main steam line P close to the second theoretical welding position of described auxiliary plant one end2；
Step S5, using the described first theoretical welding position as starting point, along measurement mould in the three-dimensional modeling analysis software
Type m1Central axis be sequentially inserted into theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical mould
Type m32, the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34；
Using the three-dimensional modeling analysis software to the measurement model m1And m2And it is inserted into the measurement model m1With
m2Between the theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model
m32, the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34Analyzed, draw the reason
By model m3Relative to misalignment angles of the theoretical centerline axis L on the y-axis direction of the analog coordinate systemIt is described
First pipeline section P1Theoretical model m31With the second pipeline section P2Theoretical model m32Between mating interface central point q1, institute
State the second pipeline section P2Theoretical model m32With the 3rd pipeline section P3Theoretical model m33Between mating interface central point q2
And the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34Between mating interface in
Heart point q3Relative to deviation Δ ys of the theoretical centerline axis L on the y-axis direction of the analog coordinate system1、Δy2And Δ
y3；
Step S6, the measurement model m is found out in the three-dimensional modeling analysis software2Central pointAnd with this
Heart pointThe measurement model m is rotated for fixing point2, make the measurement model m2Mouth of pipe A2Central point a2With the described 4th
Pipeline section P4Theoretical model m34With the mouth of pipe A2Mating interface central point q4Overlap, and record the measurement model m2's
Angle of deviation angle value of the central axis in the y-axis direction upper deflecting of the analog coordinate system
Step S7, the central point O with the wall penetration piece sleeve pipeM2The wall penetration piece sleeve pipe is rotated for fixing point,
And the wall penetration piece sleeve pipe central axis the standard three dimensional coordinate system Y direction upper deflectingAfterwards by institute
Wall penetration piece sleeve pipe is stated to fix temporarily；Again to the mouth of pipe A of the wall penetration piece sleeve pipe2End face outer rim on measurement point
Measure, the wall penetration piece set set up according to measurement result in the three-dimensional modeling analysis software after rotation adjustment
The measurement model m' of pipe2, and calculate the measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate；To institute
Wall penetration piece sleeve pipe is stated to be welded, and the mouth of pipe A after the completion of welding again to the wall penetration piece sleeve pipe of postwelding2
End face outer rim on measurement point measure, the wall is set up in the three-dimensional modeling analysis software according to measurement result
The measurement model m " of penetration piece sleeve pipe2, and calculate the measurement model m'2Mouth of pipe A2Central point a'2Postwelding sit
Mark；To the measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate and postwelding coordinate be compared, draw described
Measurement model m'2Mouth of pipe A2Central point a'2Coordinate before welding after variable quantity；Analyze soft using the three-dimensional modeling
Part is to the measurement model m "2Analyzed, draw the measurement model m "2Central axis and the theoretical centerline axis L exist
Misalignment angle on the y-axis direction of the analog coordinate systemAnd the measurement model m "2Mouth of pipe A2Central point a'2
Relative to deviations of the theoretical centerline axis L on the y-axis direction of the analog coordinate systemJudge the theory
Model m3The installation for whether meeting the main steam line P with the merging precision of the measurement model of the wall penetration piece sleeve pipe will
When asking, and being unsatisfactory for, the above-mentioned adjustment in this step and Model Reconstruction process are repeated, until the theoretical model m3With the wall
The merging precision of the measurement model of body penetration piece sleeve pipe meets the installation requirement of the main steam line P；
Step 8, the first pipeline section P calculated using the three-dimensional modeling analysis software in the main steam line P1
Installation needed for length s1, the second pipeline section P2Installation needed for length s2, the 3rd pipeline section P3Installation needed for length s3
With the 4th pipeline section P4Installation needed for length s4；Respectively to the first pipeline section P1, the second pipeline section P2, the described 3rd
Pipeline section P3With the 4th pipeline section P4Cutting processing is carried out, makes the first pipeline section P1Physical length sReal 1=s1, second pipe
Section P2Physical length sReal 2=s2, the 3rd pipeline section P3Physical length sReal 3=s3, the 4th pipeline section P4Physical length
sReal 4=s4；
Step 9, successively to the first pipeline section P in the main steam line P1, the second pipeline section P2, the described 3rd
Pipeline section P3With the 4th pipeline section P4Welding is grouped, the installation of the main steam line P is completed；
Similarly using the above method to the main steam line Q in the AP1000 nuclear power stations in the reactor building
Installed.
When being installed using the installation method to the main steam line in AP1000 nuclear power stations, first pass through modeling analysis and obtain
Go out and main steam line connection or dock the deviation of adjustable pipeline or penetration piece sleeve pipe relative to theoretical centerline axis, and according to
The deviation is adjusted to adjustable pipeline or penetration piece sleeve pipe, until adjustable pipeline or penetration piece sleeve pipe relative to theory
The deviation of central axis meets the installation accuracy of main steam line；Main steam line is installed again, installation can be both met
Required precision, can once complete the installation of main steam line, it is to avoid main steam line is adjusted repeatedly again, improve and install
Efficiency, shortens the installation duration of main steam line.
Preferably, the Point Measurement instrument selection laser traces instrument, can directly convert the measurement into standard three-dimensional
Coordinate value under coordinate system, it is simple to operate and measurement accuracy is high.
Preferably, the 3 d modeling software selects SA.
Preferably, in installation process, using pipeline fitting tool treat group to positioning pipeline section and movable pipeline section carry out
Group pair, the pipeline fitting tool includes temporary support frame and locking hoop, and the temporary support frame is buckled in the positioning pipe
In section and be fixedly installed in the AP1000 nuclear powers close to it is described positioning pipeline section fixed structure on；The locking hoop buckle
And be locked on the movable pipeline section；The temporary support frame passes through at least two flexible connecting members with the locking hoop
Connection, the connecting portion of the flexible connecting member and the locking hoop divides on the circumference that the locking hoop is formed in uniform
Tensiometer is provided with cloth, and the flexible connecting member.Further, the temporary support frame is to connect shape by welding for steel structure
Into rectangle frame.It is further preferred that the flexible connecting member is chain block.Using the pipeline fitting tool to be installed
When welding is grouped in pipeline section, assembling precision can be improved, while the value of thrust of flexible connecting member is shown using tensiometer, so as to
Flexible connecting member is adjusted according to the display of tensiometer, it is to avoid influence weldquality because commissure bears extra-stress, improve weldering
Receive the control dynamics of compression deformation.
Preferably, when bypass duct platform is welded on the main steam line P, first pacify on the main steam line P
Fill anti-deformation tool；The anti-deformation tool includes propping up in bottom support platform, gate frame, bottom supporting and regulating device and pipe
Support adjusting means；The bottom support platform is located at the lower section of the main steam line P；The gate frame is located at the bottom
It is flexibly connected above support platform and with the bottom support platform, and the top cross-bar of the gate frame is buckled in the master
On jet chimney P；The bottom supporting and regulating device is located in the bottom support platform between the main steam line P,
Support the main steam line P；The pipe inner support adjusting means is located in the main steam line P, and is propped up in the pipe
The top of support adjusting means is against on the main steam line P at the installing port of the bypass duct platform., can root in welding process
According to main steam line because bottom supporting and regulating device is adjusted the deformation quantity that welding is produced, with the deformation to main steam line
It is corrected, so as to reduce the deformation quantity that main steam line is produced by welding；Bypass duct platform is being welded to main steam line
When upper, pipe inner support adjusting means can be adjusted as needed, to prevent the weldering between bypass duct platform and main steam line
Seam deformation, improves welding quality.
Preferably, the bottom supporting and regulating device includes bottom support jack and positioned at the bottom support jack
Top support backplate, and the support backplate towards the main steam line P supporting surface be arcwall face；The pipe inner support
Adjusting means includes pipe inner support jack and the support backing plate positioned at the top of the pipe inner support jack, and in the pipe
The bottom surface of the bottom support base of support jack is arcwall face.Further, it is provided with pipeline on the crossbeam of the gate frame
Fastener, and the pipeline fastening piece towards the face of the bottom support platform be arcwall face.So, by anti-deformation tool with main steam
The face of tube contacts is disposed as arcwall face, and anti-deformation tool can be avoided to cause damage to main steam line.
Preferably, will be described U-shaped using hanging device when the U-tube section in the main steam line Q is installed
Pipeline section is lifted into above the installation site of U-tube section, and by adjusting the hand of the connection U-tube section and the hanging device
Draw the length of cucurbit and hanging belt that U-tube section is adjusted into installed position, and the pulling force on the chain block
The total pulling force value of meter display is equal to the gravity of U-tube section.In installation process, U-tube section can be carried out by tensiometer
Real-time detection of weighing, so that weld seam is in stress balance state, and then ensures welding quality.
Brief description of the drawings
Fig. 1 is the installation distribution schematic diagram of main steam line in AP1000 nuclear power stations；
Fig. 2 is flow chart when the inventive method is installed to the main steam line P shown in Fig. 1；
Fig. 3 is the mouth of pipe A in the inventive method in barrier shield cylinder penetration piece sleeve pipe1End face outer rim on the measurement that sets
The distribution schematic diagram of point；
Fig. 4 is the structural representation that the pipeline fitting tool used is in use state in the inventive method；
Fig. 5 is the schematic front view that the anti-deformation tool used is in use state in the inventive method；
Fig. 6 is the A-A views in Fig. 5；
Fig. 7 be the inventive method in in the main steam line Q shown in Fig. 1 U-tube section Q1When carrying out lifting group pair
Schematic diagram.
Embodiment
As shown in figure 1, in AP1000 nuclear power stations, main steam line includes the main steam line being located in reactor building
Main steam between Q and barrier shield penetration piece sleeve pipe 1 and the wall penetration piece sleeve pipe 2 of auxiliary plant positioned at reactor building
Pipeline P.Wherein, main steam line P includes the first pipeline section P being sequentially connected1, the second pipeline section P2, the 3rd pipeline section P3With the 4th pipeline section
P4, the first pipeline section P1It is connected with barrier shield penetration piece sleeve pipe 1, the 4th pipeline section P4It is connected with wall penetration piece sleeve pipe 2, and main steam
Central axis after pipeline P is installed in place is parallel with the X-direction of conventional coordinates.Main steam line Q includes and reactor factory
The U-tube section Q of steam generator connection in room1。
Below, it is described in detail with reference to the installation method of main steam line in Fig. 2-6 pairs of AP1000 nuclear power stations of the present invention.
Exemplified by installing main steam line P, specific installation steps are as follows：
Step S1：Setting measurement point and measure draw coordinate of the measurement point under standard three dimensional coordinate system.
The mouth of pipe A docked in barrier shield cylinder penetration piece sleeve pipe 1 with main steam line P1End face outer rim on set one
Measurement point set, as shown in figure 3, to ensure modeling accuracy, measurement point set includes at least eight and is angularly distributed on mouth of pipe A1End
Measurement point in the outer rim of face.Measurement point angularly uniformly refers to that the corresponding central angle of the adjacent measurement point of any two is equal.
Preferably, at the position of setting measurement point, first choose at 0 °, 90 °, 180 ° and 270 ° position in mouth of pipe A1 end face outer rim
Point be used as measurement point c1、c2、c3And c4, then find out between the adjacent measurement point of fixed any two and this two surveys
The equal measurement point of the amount corresponding central angle of point, such as c1And c2Between find out and measurement point c1And c2Corresponding central angle is equal
Measurement point c5.Similarly, the mouth of pipe A docked in wall penetration piece sleeve pipe 2 with main steam line P2End face outer rim on set one
Individual measurement point set, to ensure modeling accuracy, each measurement point set includes at least eight and is distributed in the end face outer rim of the mouth of pipe
Measurement point.
Utilize Point Measurement instrument difference line up A1And A2On measurement point set in measurement point measure, and draw this
Coordinate (x of a little measurement points under the standard three dimensional coordinate system of AP1000 nuclear power stationsSurvey,ySurvey,zSurvey).It is excellent in specific measure
Measurement point is measured as Point Measurement instrument from laser traces instrument, standard three-dimensional seat can be directly converted the measurement into
Coordinate value under mark system, it is simple to operate, and measurement accuracy is high.
Step S2：The survey of barrier shield penetration piece sleeve pipe 1 and wall penetration piece sleeve pipe 2 is set up in three-dimensional modeling analysis software
Measure model and theoretical centerline axis, and main steam line P theoretical model.
The analog coordinate system of the standard three dimensional coordinate system of AP1000 nuclear power stations, and root are set up in three-dimensional modeling analysis software
The measurement mould of barrier shield cylinder penetration piece sleeve pipe 1 is set up under analog coordinate according to the coordinate of all measurement points measured in step S1
Type m1With the measurement model m of wall penetration piece sleeve pipe 22, and calculate outlet spout A using three-dimensional modeling analysis software1Central point a1
Coordinate and mouth of pipe A2Central point a2Coordinate.
According to the barrier shield cylinder penetration piece sleeve pipe 1 and wall penetration piece set provided in the design drawing of AP1000 nuclear power stations
The gross data of pipe 2 is set up under analog coordinate system in the theory of barrier shield cylinder penetration piece sleeve pipe 1 and wall penetration piece sleeve pipe 2
Heart axis L.
According to the main steam line P provided in the design drawing of AP1000 nuclear power stations gross data, in three-dimensional modeling point
Main steam line P theoretical model m is set up in analysis software3, and theoretical model m3Including the first pipeline section P1Theoretical model m31、
Second pipeline section P2Theoretical model m32, the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34。
Step S3：Calculate the mouth of pipe and relative mouth of pipe A at main steam line P two ends1And A2The distance between.
The mouth of pipe central point g at the two ends of main steam line 3 is calculated according to the gross data of main steam line 31And p2Seat
Mark, wherein, mouth of pipe central point g1Close to the mouth of pipe A of barrier shield penetration piece sleeve pipe 11, mouth of pipe central point g2Close to wall penetration piece set
The mouth of pipe A of pipe 22.According to mouth of pipe central point g1And g2Coordinate and mouth of pipe A1Central point a1With mouth of pipe A2Central point a2's
Coordinate, calculates outlet spout central point g1With mouth of pipe A1Central point a1The distance between l1And mouth of pipe central point g2With mouth of pipe A2's
Central point a2The distance between l2, that is, draw the mouth of pipe and relative mouth of pipe A at main steam line P two ends1And A2The distance between.
Step S4：The theoretical welding position at main steam line P two ends is found out under analog coordinate system.
Under analog coordinate system, with mouth of pipe A1Central point a1For starting point extension measurement model m1Central axis, and extension
Length is l1, obtain central point hs of the main steam line P close to the first theoretical welding position of reactor building one end1, that is, obtain
First theoretical welding positions (pipe end) of the main steam line P close to reactor building one end；With mouth of pipe A2Central point a2For starting point
Extend measurement model m2Central axis, and extending length be l2, main steam line P is obtained close to the second of auxiliary plant one end
The central point h of theoretical welding position2, that is, obtain second theoretical welding position (pipes of the main steam line P close to auxiliary plant one end
End).
Step S5：The measurement model and wall that the theoretical model of main steam line is inserted into barrier shield penetration piece sleeve pipe are passed through
Between the measurement model for wearing part sleeve pipe, in central axis and theory that theoretical model is obtained using three-dimensional modeling analysis software
The central point relative theory central axis of each mating interface is sat in simulation in misalignment angle and theoretical model between heart axis
Mark the deviation Δ y on the y-axis direction of system.
First, using the first theoretical welding position as starting point, along measurement model m in three-dimensional modeling analysis software1Center
Axis is sequentially inserted into theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model m32, the 3rd
Pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34, i.e., make theoretical model m in insertion3In the first pipeline section
P1Theoretical model m31, the second pipeline section P2Theoretical model m32, the 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Reason
By model m34Central axis and measurement model m1Central axes.
Then, using three-dimensional modeling analysis software to measurement model m1And m2And it is inserted into measurement model m1And m2Between
Theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model m32, the 3rd pipeline section P3Theory
Model m33With the 4th pipeline section P4Theoretical model m34Analyzed, draw theoretical model m3Relative to theoretical centerline axis L in mould
Misalignment angle on the y-axis direction of quasi-coordinate systemFirst pipeline section P1Theoretical model m31With the second pipeline section P2Theoretical mould
Type m32Between mating interface central point q1Relative to deviations of the theoretical centerline axis L on the y-axis direction of analog coordinate system
It is worth Δ y1, the second pipeline section P2Theoretical model m32With the 3rd pipeline section P3Theoretical model m33Between mating interface central point q2
Relative to deviation Δ ys of the theoretical centerline axis L on the y-axis direction of analog coordinate system2, the 3rd pipeline section P3Theoretical model m33
With the 4th pipeline section P4Theoretical model m34Between mating interface central point q3Relative to theoretical centerline axis L in analog coordinate
Deviation Δ y on the y-axis direction of system3。
Step S6：To the measurement model m of wall penetration piece sleeve pipe 2 in three-dimensional modeling analysis software2It is adjusted, draws
Measurement model m2Central axis analog coordinate system y-axis direction upper deflecting angle of deviation angle value.
Measurement model m is found out in three-dimensional modeling analysis software2Central pointAnd with the central pointFor fixing point
Wheel measuring model m2, make measurement model m2Mouth of pipe A2Central point a2With the 4th pipeline section P4Theoretical model m34With mouth of pipe A2's
The central point q of mating interface4Overlap, and record measurement model m2Central axis analog coordinate system y-axis direction upper deflecting
Angle of deviation angle value
Step S7：Wall penetration piece sleeve pipe 2 is adjusted repeatedly, and modeling is remeasured after adjusting each time, directly
To main steam line P theoretical model m3Installation requirement is met with the merging precision of the measurement model of wall penetration piece sleeve pipe 2.
First, at main steam line P installation scene, with the central point O of wall penetration piece sleeve pipe 2M2For fixing point
Rotate wall penetration piece sleeve pipe 2, and wall penetration piece sleeve pipe 2 central axis in the Y direction of standard three dimensional coordinate system
DeflectionWall penetration piece sleeve pipe 2 is fixed temporarily afterwards.
Then, mouth of pipe A again to wall penetration piece sleeve pipe 22End face outer rim on measurement point measure, according to survey
The measurement model m' for the wall penetration piece sleeve pipe 2 that amount result is set up in three-dimensional modeling analysis software after rotation adjustment2, and calculate
Draw measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate.
Then, wall penetration piece sleeve pipe 2 is welded, and the wall penetration piece set after the completion of welding again to postwelding
The mouth of pipe A of pipe 22End face outer rim on measurement point measure, calculate measurement model m'2Mouth of pipe A2Central point a'2
Postwelding coordinate.To measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate and postwelding coordinate be compared, draw
Measurement model m'2Mouth of pipe A2Central point a'2Coordinate before welding after variable quantity.According to measurement result in three-dimensional modeling
The measurement model m " of wall penetration piece sleeve pipe 2 is set up in analysis software2；The three-dimensional modeling analysis software is re-used to measurement
Model m "2Analyzed, draw measurement model m "2Central axis and theoretical centerline axis L in the y-axis direction of analog coordinate system
On misalignment angleAnd measurement model m "2Mouth of pipe A2Central point a'2Sat relative to theoretical centerline axis L in simulation
Mark the deviation on the y-axis direction of system
Finally, theoretical model m is judged3Main steaming whether is met with the merging precision of the measurement model of wall penetration piece sleeve pipe 2
Steam pipe road P installation requirement, when being unsatisfactory for, repeats the above-mentioned adjustment in this step and Model Reconstruction process, until theoretical model
m3Main steam line P installation requirement is met with the merging precision of the measurement model of wall penetration piece sleeve pipe 2.
Step 8：Calculate the first pipeline section P in main steam line P1, the second pipeline section P2, the 3rd pipeline section P3With the 4th pipeline section
P4Length s needed for installing, and length according to needed for installation carries out cutting processing to each pipeline section in main steam line P.
The first pipeline section P in main steam line P is calculated first with three-dimensional modeling analysis software1Installation needed for length s1、
Second pipeline section P2Installation needed for length s2, the 3rd pipeline section P3Installation needed for length s3With the 4th pipeline section P4Installation needed for length
s4.Then, respectively to the first pipeline section P1, the second pipeline section P2, the 3rd pipeline section P3With the 4th pipeline section P4Cutting processing is carried out, makes the first pipe
Section P1Physical length sReal 1=s1, the second pipeline section P2Physical length sReal 2=s2, the 3rd pipeline section P3Physical length sReal 3=s3, the
Four pipeline section P4Physical length sReal 4=s4。
Step 9：Successively to the first pipeline section P in main steam line P1, the second pipeline section P2, the 3rd pipeline section P3With the 4th pipeline section
P4Welding is grouped, main steam line P installation is completed.
Positioning pipeline section and a movable pipeline section to be installed that an installation in main steam line is fixed
When welding is grouped, it is grouped using pipeline fitting tool as shown in Figure 4.Specifically with main steam line P
First pipeline section P1With the second pipeline section P2Exemplified by being grouped, wherein, the first pipeline section P1For positioning pipeline section, the second pipeline section P2For activity
Pipeline section, method is described in detail for the pipeline fitting tool and group.The pipeline fitting tool includes temporary support frame 51, lock
Tight clip 52 and at least two carries the flexible connecting member 54 of tensiometer 53.Wherein, temporary support frame 51 passes through flexible connecting member
54 are connected with locking hoop 52, and the circumference that flexible connecting member 54 is formed with the connecting portion of locking hoop 52 in locking hoop 52
On be evenly distributed.Preferably, temporary support frame 51 is that the rectangle frame formed is connected by welding for steel structure, in order to when in use
It is buckled in fixed pipeline section P1On.Preferably, flexible connecting member 54 is chain block, facilitates installation personnel to movable pipeline section
P2With positioning pipeline section P1The length of flexible connecting member 54 is adjusted when being grouped.When in use, the interim branch in pipeline fitting tool
Support frame 51 is buckled in positioning pipeline section P1Go up and be fixedly installed in nuclear power station close to positioning pipeline section P1Fixed structure 6 on, locking clamp
Bind round 52 buckles and be locked in movable pipeline section P2On.When positioning pipeline section and adjustable pipe section are located on vertical direction, and adjustable pipe
When section is located at the lower section of positioning pipeline section, chain block is adjusted, the pulling force total value for showing tensiometer 53 is equal to the weight of movable pipeline section
Power, so that the intensity for the weld seam that elimination activity pipeline section is formed by Action of Gravity Field to welding and welding deformation quantity in welding process
Influence, improve welding effect.
Further, since being provided with bypass duct platform on main steam line P, it is welded to by bypass duct platform on main steam line P
When, to reduce the deformation quantity that welding is produced, welding deformation is carried out using anti-deformation tool as illustrated in Figures 5 and 6.The anti-deformation
Frock includes bottom support platform 71, the gate being flexibly connected above bottom support platform 71 and with bottom support platform 71
Framework 72, bottom supporting and regulating device 73 and pipe inner support adjusting means 74, and bottom supporting and regulating device 73 and pipe inner support
The quantity of adjusting means 74 and arrangement position can be arranged as required to.When in use, bottom support platform 71 is located at main steam pipe
Road P lower section, and master is supported by the bottom supporting and regulating device 73 between bottom support platform 71 and main steam line P
Jet chimney P；Gate frame 72 is buckled on main steam line P, and main steam line P clampings are fixed on into gate frame 72 and bottom
Between portion's support platform 71；Pipe inner support adjusting means 74 is located in main steam line P, and pipe inner support adjusting means 74
Top be against at the installing port of the bypass duct platform 8 on main steam line P.So, can during support tube platform 8 is welded
Bottom supporting and regulating device 73 and pipe inner support adjusting means 74 are adjusted as needed, existed with reducing main steam line P
The deformation quantity produced in welding process.Preferably, pipeline fastening piece 721, and the pipeline card are provided with the crossbeam of gate frame 72
Part 721 towards the face of bottom support platform 71 be arcwall face, with avoid gate frame 72 to main steam line P carry out clamping consolidate
Regularly, damage is caused to main steam line P outer surface.Preferably, bottom supporting and regulating device 73 supports very heavy including bottom
Top 731 and the support backplate 732 positioned at the top of bottom support jack 731, and the support backplate 732 is towards main steam line P
Supporting surface be arcwall face；Pipe inner support adjusting means 74 includes pipe inner support jack 741 and positioned at pipe inner support jack
The support backing plate 742 on 741 tops, and the bottom surface of the bottom support base 7411 of pipe inner support jack 741 is arcwall face.So,
By the pipe inner support thousand in the supporting surface and pipe inner support adjusting means 74 of the support backplate 732 in bottom supporting and regulating device 73
The bottom surface of the bottom support base 7411 on jin top 741 is set to arcwall face, can avoid bottom supporting and regulating device 73 and pipe inner support
Adjusting means 74 causes damage in welding process to main steam line P, while using supporting backing plate 742 to support bypass duct platform 8,
Area of bearing is big, and bypass duct platform 8 can be avoided to be shaken in welding process and influence the welding quality of bypass duct platform 8.It is preferred that
Ground, in bottom, the bottom of support platform 71 is provided for supporting the supporting leg of the anti-deformation tool.
Similarly pacified using the above method to being located at the main steam line Q in reactor building in AP1000 nuclear power stations
Dress.Due to the U-tube section Q being only connected in main steam line Q with steam generator1It is adjustable section, therefore main steam pipe is being installed
During road Q, U-tube section Q1Finally install.Preferably, to U-tube section Q1When being installed, as shown in fig. 7, being set first with lifting
Standby such as crane is by U-tube section Q1It is lifted into U-tube section Q1Installation site above, and pass through adjust connection U-tube section Q1
With the chain block 91 of hanging device and the length of hanging belt 92 by U-tube section Q1It is adjusted to installed position, and positioned at pulling
The total pulling force value that tensiometer 93 on cucurbit 91 is shown is equal to U-tube section Q1Gravity.So, can avoid in welding process because
U-tube section Q1It is pressed in installed position and causes commissure to be subjected to extra-stress, influences weldquality.
In the present invention, 3 d modeling software can select SA (Spatializer Analysis) or other similar softwares.
Claims (10)
1. the installation method of main steam line in a kind of AP1000 nuclear power stations, it is characterised in that the installation method includes following step
Suddenly：
Step S1, the mouth of pipe A that is docked with main steam line P of barrier shield cylinder penetration piece sleeve pipe in reactor building1With auxiliary factory
The A that the wall penetration piece sleeve pipe in room is docked with the main steam line P2End face outer rim on set a measurement point set respectively,
And the measurement point set includes the measurement point that at least eight is angularly distributed in the end face outer rim of the mouth of pipe；Utilize a position
Measuring instrument measures to the measurement point and draws standard three dimensional coordinate of the measurement point in the AP1000 nuclear power stations
Coordinate (x under systemSurvey,ySurvey,zSurvey)；
Step S2, the analog coordinate system for setting up in three-dimensional modeling analysis software the standard three dimensional coordinate system, and according to described
The coordinate of the measurement point obtained in step S1 sets up the barrier shield cylinder penetration piece sleeve pipe under the analog coordinate system
Measurement model m1With the measurement model m of the wall penetration piece sleeve pipe2, and calculate the mouth of pipe A1Central point a1's
Coordinate and the mouth of pipe A2Central point a2Coordinate；
According to the gross data of the barrier shield cylinder penetration piece sleeve pipe and the wall penetration piece sleeve pipe in the analog coordinate
The theoretical centerline axis L of the barrier shield cylinder penetration piece sleeve pipe and the wall penetration piece sleeve pipe is set up under system；
The main steam line P is set up according to the gross data of the main steam line P in the three-dimensional modeling analysis software
Theoretical model m3, and theoretical model m3Including the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model m32、
3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34；
Step S3, the mouth of pipe central point for calculating according to the gross data of the main steam line P main steam line P two ends
g1And g2Coordinate, the mouth of pipe central point g1Close to the mouth of pipe A of barrier shield penetration piece sleeve pipe1, the mouth of pipe central point g2It is close
The mouth of pipe A of wall penetration piece sleeve pipe2；
According to the mouth of pipe central point g1And g2Coordinate and the mouth of pipe A1Central point a1Coordinate and the mouth of pipe A2's
Central point a2Coordinate, calculate the mouth of pipe central point g1With the mouth of pipe A1Central point a1The distance between l1And it is described
Mouth of pipe central point g2With the mouth of pipe A2Central point a2The distance between l2；
Step S4, with the mouth of pipe A1Central point a1For starting point, extend the measurement model m1Central axis, and extension length
Spend for l1, obtain central point hs of the main steam line P close to the first theoretical welding position of described reactor building one end1；
With the mouth of pipe A2Central point a2For starting point, extend the measurement model m2Central axis, and extending length be l2, obtain
Central point hs of the main steam line P close to the second theoretical welding position of described auxiliary plant one end2；
Step S5, using the described first theoretical welding position as starting point, along measurement model m in the three-dimensional modeling analysis software1's
Central axis is sequentially inserted into theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model m32、
3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34；
Using the three-dimensional modeling analysis software to the measurement model m1And m2And it is inserted into the measurement model m1And m2It
Between the theoretical model m3In the first pipeline section P1Theoretical model m31, the second pipeline section P2Theoretical model m32、
The 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34Analyzed, draw the theoretical mould
Type m3Relative to misalignment angles of the theoretical centerline axis L on the y-axis direction of the analog coordinate systemDescribed first
Pipeline section P1Theoretical model m31With the second pipeline section P2Theoretical model m32Between mating interface central point q1, described
Two pipeline section P2Theoretical model m32With the 3rd pipeline section P3Theoretical model m33Between mating interface central point q2And
The 3rd pipeline section P3Theoretical model m33With the 4th pipeline section P4Theoretical model m34Between mating interface central point
q3Relative to deviation Δ ys of the theoretical centerline axis L on the y-axis direction of the analog coordinate system1、Δy2With Δ y3；
Step S6, the measurement model m is found out in the three-dimensional modeling analysis software2Central pointAnd with the central pointThe measurement model m is rotated for fixing point2, make the measurement model m2Mouth of pipe A2Central point a2With the 4th pipeline section
P4Theoretical model m34With the mouth of pipe A2Mating interface central point q4Overlap, and record the measurement model m2Center
Angle of deviation angle value of the axis in the y-axis direction upper deflecting of the analog coordinate system
Step S7, the central point O with the wall penetration piece sleeve pipeM2The wall penetration piece sleeve pipe is rotated for fixing point, and
Y direction upper deflecting of the central axis of the wall penetration piece sleeve pipe in the standard three dimensional coordinate systemAfterwards by the wall
Body penetration piece sleeve pipe is fixed temporarily；Again to the mouth of pipe A of the wall penetration piece sleeve pipe2End face outer rim on measurement point carry out
Measurement, the wall penetration piece sleeve pipe set up according to measurement result in the three-dimensional modeling analysis software after rotation adjustment
Measurement model m'2, and calculate the measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate；To the wall
Body penetration piece sleeve pipe is welded, and the mouth of pipe A after the completion of welding again to the wall penetration piece sleeve pipe of postwelding2End
Measurement point in the outer rim of face is measured, and setting up the wall in the three-dimensional modeling analysis software according to measurement result runs through
The measurement model m " of part sleeve pipe2, and calculate the measurement model m'2Mouth of pipe A2Central point a'2Postwelding coordinate；It is right
The measurement model m'2Mouth of pipe A2Central point a'2Adjustment after coordinate and postwelding coordinate be compared, draw the measurement
Model m'2Mouth of pipe A2Central point a'2Coordinate before welding after variable quantity；Utilize the three-dimensional modeling analysis software pair
The measurement model m "2Analyzed, draw the measurement model m "2Central axis with the theoretical centerline axis L described
Misalignment angle on the y-axis direction of analog coordinate systemAnd the measurement model m "2Mouth of pipe A2Central point a'2Relatively
In deviations of the theoretical centerline axis L on the y-axis direction of the analog coordinate systemJudge the theoretical model m3
The installation requirement of the main steam line P whether is met with the merging precision of the measurement model of the wall penetration piece sleeve pipe, such as
When being unsatisfactory for, the above-mentioned adjustment in this step and Model Reconstruction process are repeated, until the theoretical model m3Passed through with the wall
The merging precision for wearing the measurement model of part sleeve pipe meets the installation requirement of the main steam line P；
Step 8, the first pipeline section P calculated using the three-dimensional modeling analysis software in the main steam line P1Peace
Length s needed for dress1, the second pipeline section P2Installation needed for length s2, the 3rd pipeline section P3Installation needed for length s3And institute
State the 4th pipeline section P4Installation needed for length s4；Respectively to the first pipeline section P1, the second pipeline section P2, the 3rd pipeline section P3
With the 4th pipeline section P4Cutting processing is carried out, makes the first pipeline section P1Physical length sReal 1=s1, the second pipeline section P2's
Physical length sReal 2=s2, the 3rd pipeline section P3Physical length sReal 3=s3, the 4th pipeline section P4Physical length sReal 4=s4；
Step 9, successively to the first pipeline section P in the main steam line P1, the second pipeline section P2, the 3rd pipeline section
P3With the 4th pipeline section P4Welding is grouped, the installation of the main steam line P is completed；
Similarly the main steam line Q being located in the AP1000 nuclear power stations in the reactor building is carried out using the above method
Install.
2. the installation method of main steam line in AP1000 nuclear power stations according to claim 1, it is characterised in that the point
Position measuring instrument selects laser traces instrument.
3. the installation method of main steam line in AP1000 nuclear power stations according to claim 1, it is characterised in that described three
Dimension modeling software selects SA.
4. the installation method of main steam line in AP1000 nuclear power stations according to claim 1, it is characterised in that installing
During, using pipeline fitting tool treat group to positioning pipeline section and movable pipeline section be grouped, the pipeline fitting tool
Including temporary support frame and locking hoop, the temporary support frame is buckled on the positioning pipeline section and is fixedly installed on described
In AP1000 nuclear powers on the fixed structure of the positioning pipeline section；The locking hoop buckle is simultaneously locked in the activity
On pipeline section；The temporary support frame is connected with the locking hoop by least two flexible connecting members, the flexible connecting member
It is evenly distributed with the connecting portion of the locking hoop on the circumference that the locking hoop is formed, and the flexible connecting member
On be provided with tensiometer.
5. the installation method of main steam line in AP1000 nuclear power stations according to claim 4, it is characterised in that described to face
When carriage be that the rectangle frame that is formed is connected by welding for steel structure.
6. the installation method of main steam line in AP1000 nuclear power stations according to claim 4, it is characterised in that described soft
Property connector be chain block.
7. the installation method of main steam line in the AP1000 nuclear power stations according to any one in claim 1-6, it is special
Levy and be, when bypass duct platform is welded on the main steam line P, anti-deformation first is installed on the main steam line P
Frock；The anti-deformation tool includes bottom support platform, gate frame, bottom supporting and regulating device and pipe inner support regulation dress
Put；The bottom support platform is located at the lower section of the main steam line P；The gate frame is located at the bottom support platform
Top is simultaneously flexibly connected, and the top cross-bar of the gate frame is buckled in the main steam line with the bottom support platform
On P；The bottom supporting and regulating device is located in the bottom support platform between the main steam line P, supports residence
State main steam line P；The pipe inner support adjusting means is located in the main steam line P, and pipe inner support regulation dress
The top put is against on the main steam line P at the installing port of the bypass duct platform.
8. the main steam pipe pipe fitting method in AP1000 nuclear power stations according to claim 7, it is characterised in that the bottom
Portion's supporting and regulating device includes bottom support jack and the support backplate positioned at the top of the bottom support jack, and should
The supporting surface for supporting backplate towards the main steam line P is arcwall face；The pipe inner support adjusting means includes pipe inner support
Jack and the support backing plate positioned at the top of the pipe inner support jack, and the bottom support of the pipe inner support jack
The bottom surface of seat is arcwall face.
9. the main steam pipe pipe fitting method in AP1000 nuclear power stations according to claim 7, it is characterised in that the door
Be provided with pipeline fastening piece on the crossbeam of type framework, and the pipeline fastening piece towards the face of the bottom support platform be arcwall face.
10. the installation method of main steam line in the AP1000 nuclear power stations according to any one in claim 1-6, it is special
Levy and be, when the U-tube section in the main steam line Q is installed, lifted U-tube section using hanging device
To above the installation site of U-tube section, and connected by adjusting U-tube section and the hanging device chain block and
U-tube section is adjusted to installed position by the length of hanging belt, and the tensiometer on the chain block is shown
Total pulling force value is equal to the gravity of U-tube section.
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