CN102637463B - The method of main loop system in nuclear island of nuclear power plant is installed - Google Patents

The method of main loop system in nuclear island of nuclear power plant is installed Download PDF

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CN102637463B
CN102637463B CN201210103299.4A CN201210103299A CN102637463B CN 102637463 B CN102637463 B CN 102637463B CN 201210103299 A CN201210103299 A CN 201210103299A CN 102637463 B CN102637463 B CN 102637463B
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pipe
installation
measurement
mouth
plane
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CN102637463A (en
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路宏杰
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China Nuclear Industry 23 Construction Co Ltd
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China Nuclear Industry 23 Construction Co Ltd
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    • 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 the installation method of nuclear island of nuclear power station inner structure.For the primary heat transport system installation period solved in nuclear island of nuclear power station is long, the problem that installation cost is high.The present invention proposes a kind of method of installing main loop system in nuclear island of nuclear power plant, is placed on bracing or strutting arrangement by main equipment to be installed, and main equipment is pressure vessel, steam generator or main pump shell; The installation position determining measurement point and the quantity of measurement point laid on installation position; Lay survey station point and common point; Gather the coordinate data of the measurement point laid; Process the coordinate data of the measurement point collected, and set up the body coordinate system of main equipment to be installed, calculate the installation specification of connecting pipe; Connecting pipe is processed and the primary heat transport system in nuclear island is installed.Like this, only need carry out time processing to connecting pipe and lift the installation of the primary heat transport system that can complete in nuclear power station in nuclear island, improve installation rate, shorten the set-up time, reduce installation cost.

Description

The method of main loop system in nuclear island of nuclear power plant is installed
Technical field
The present invention relates to the installation method of nuclear island inner structure in nuclear power station, particularly relate to the installation method of main loop system in nuclear island of nuclear power plant.
Background technology
Primary heat transport system in nuclear island of nuclear power station comprises and is arranged on main equipment in nuclear island as pressure vessel, steam generator, main pump shell, and is used for connecting each main equipment and makes the connecting tube of their mutual conduction.
At present, when installing the primary heat transport system in nuclear power station, normally first according to design drawing by the main equipment of nuclear island as pressure vessel, steam generator and main pump shell are arranged on its design attitude in nuclear island, again connecting tube is placed between each main equipment, and by human weld, the port on the port of connecting tube and main equipment is welded together, each main equipment in nuclear island is interconnected and forms the primary heat transport system of conducting.But, because the actual specification of main equipment and connecting tube and design specification have deviation, such as physical size and design size, therefore workmen is after by main equipment installation in position, first connecting tube is winched to its predetermined installation site, and assembled comparison is carried out to connecting tube and connected two main equipments, when the actual off-gauge of connecting tube closes its installation requirement between these two main equipments, according to comparison result time assembled, this connecting tube is modified processing, and after machining, again connecting tube is lifted into its predetermined installation site carries out assembled comparison, until the actual specification of this connecting tube meets installation requirement, could by this connecting tube installation in position.Like this, when installing the primary heat transport system in nuclear island, after main equipment installation in position, need carry out assembled comparison to connecting tube, even modification and processing repeatedly lifts, and the manpower and materials causing installing primary heat transport system input in nuclear island are more, and installation rate is slow, long in time limit.In addition, human weld is adopted to weld the connecting portion between connecting tube and main equipment, welding effect is poor, speed of welding is slow, long in time limit, welding cost is high, also cause the installation period of primary heat transport system in nuclear island long, installation cost is high, and then causes that the construction duration of nuclear power station is long, cost is high.
Summary of the invention
For the installation period solving the primary heat transport system in prior art in nuclear island of nuclear power station is long, the problem that installation cost is high, the present invention proposes a kind of method of installing main loop system in nuclear island of nuclear power plant, it is characterized in that, this installation method comprises the steps:
The first step, is placed on bracing or strutting arrangement by main equipment to be installed, and described main equipment is pressure vessel, steam generator or main pump shell;
Second step, the installation position determining measurement point and the quantity of measurement point laid on described installation position:
The installation supporting surface of described pressure vessel inside is laid at least three measurement points do not overlapped to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described pressure vessel is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, a body axis on described pressure vessel is laid at least one measurement point to obtain the coordinate of the intersection point of not two body axis on the same line on this pressure vessel;
The installation supporting surface that described steam generator is outside and inner lays at least three measurement points do not overlapped respectively to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described steam generator is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, outstanding cylindrical band on described steam generator is chosen at least two axial line location circumference do not overlapped, and circumferentially lay at least three measurement points do not overlapped in described location to determine the actual axial line of this steam generator,
The installation supporting surface of described main pump shell inside is laid at least three measurement points do not overlapped to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described main pump shell is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, on the collar extension end face of the suction choma of described main pump shell circumferentially or outer circumferentially lay at least three measurement points do not overlapped to determine the actual axial line of this main pump shell;
3rd step, lay survey station point and common point:
Lay survey station point in the measurement place at described main equipment place to be installed, the laser tracking measurement system be placed on described survey station point can be measured all measurement points laid; Choose at least three common points in same plane in the measurement place at described main equipment place to be installed to make described survey station point interrelated, and all can measure described common point when described laser tracking measurement system is positioned on any one survey station point;
4th step, gathers the coordinate data of the measurement point laid:
First open described laser tracking measurement system and make its self calibration, and run the 3 D Industrial Survey Software on the computing machine that is connected with described laser tracking measurement system, and on the interface of this 3 D Industrial Survey Software, add described laser tracking measurement system; Then laser tracking measurement system is placed on survey station point, then coordinates the accessory of described laser tracking measurement system to measure described measurement point, and be transferred in described 3 D Industrial Survey Software by measuring the coordinate data obtained;
5th step, processes the coordinate data of the measurement point collected, and sets up the body coordinate system of described main equipment to be installed, calculate the installation specification of described connecting pipe:
Described 3 D Industrial Survey Software is utilized to calculate the plane at the installation supporting surface place on described main equipment to be installed and/or the plane at mouth of pipe end face place of the described mouth of pipe and the coordinate in this mouth of pipe center of circle and/or actual axial line, and set up the body coordinate system of described main equipment to be installed, by measure the coordinate data of measurement point obtained be converted to the body coordinate system of described main equipment to be installed under and calculate the installation specification of described connecting pipe;
6th step, described connecting pipe is processed and the primary heat transport system in nuclear island is installed:
According to the installation specification of the described connecting pipe calculated, described connecting pipe is processed, and after machining, described connecting pipe is placed in predetermined installation site, again the main equipment of described connecting pipe and installation in position is welded together, and make described primary heat transport system conducting, primary heat transport system installation in nuclear island.
Like this, those skilled in the art is when installing the primary heat transport system in nuclear island of nuclear power station, only need time processing that the actual specification of connecting pipe to be installed can be made to meet installation requirement, and then only once need lift and connecting pipe to be installed can be installed to its predetermined installation site, improve the speed of the primary heat transport system of installing in nuclear island, reduce installation cost, and then improve the construction speed of nuclear power station, reduce the construction cost of nuclear power station.
Preferably, described 3 D Industrial Survey Software is SpatialAnalyzer Survey Software.
Preferably, in the second step of the method, described installation supporting surface lays four measurement points.
Preferably, in the second step of the method, in described circumferentially or outer circumferentially lay four measurement points.
Preferably, in the second step of the method, circumferentially lay four measurement points in described location.
Preferably, in the 3rd step of the method, choose four common points, and have certain difference in height between any two.
Like this, measuring accuracy can be improved, and then improve the precision calculating the actual specification of main equipment to be installed, to improve the machining precision of connecting pipe, and then the group during mouth of pipe group pair of the mouth of pipe improved on main equipment to be installed and connecting pipe is to the precision in gap, and then narrow gap auto welding connection technology can be adopted to weld with the connecting portion of connecting pipe the main equipment in nuclear island, improve speed of welding and welding effect, shorten the set-up time of primary heat transport system in nuclear island, improve installation effectiveness, save installation cost.
Preferably, in the 4th step of the method, before described measurement point is measured, according to the form of " project name-group name-Devices to test identification number ", described measurement point is named.Like this, be convenient to record measurement result, and data can be avoided to obscure, improve writing speed.
Preferably, in the 5th step of the method, with the plane at the installation supporting surface place of described pressure vessel inside for XOY plane, with the intersection point of the vertical projection of this pressure vessel does not overlap two body axis in this XOY plane for true origin, and with the vertical projection of the body axis of on this pressure vessel in this XOY plane for X-axis, set up the body coordinate system of described pressure vessel; With the actual axial line of described steam generator for Z axis, with the mouth of pipe center of circle of the heat pipe mouth of this steam generator perpendicular to the straight line at the straight-line segment place of this Z axis for X-axis, set up the body coordinate system of described steam generator; With the plane at the installation supporting surface place of described main pump shell inside for XOY plane, with the actual axial line of this main pump shell for Z axis, set up the body coordinate system of described main pump shell.
Preferably, in the 6th step of the method, narrow gap auto welding connection technology is adopted to weld with the connecting portion of described main equipment described connecting pipe to be installed.Like this, speed of welding is fast, and welding effect is good.
Accompanying drawing explanation
Fig. 1 is the laying schematic diagram of survey station point when measuring the pressure vessel being in lying status in the present invention;
Fig. 2 is the laying schematic diagram of location circumference when measuring steam generator in the present invention on this steam generator and location measurement point circumferentially;
Fig. 3 is the cross-sectional schematic of main pump shell spatial structure to be installed in the present invention;
Fig. 4 is the laying schematic diagram of measurement point when measuring main pump shell in the present invention on this main pump shell housing;
Fig. 5 is the measurement point in the present invention on the lining face for the treatment of when measuring, and target ball is positioned at the target ball groove on plane seat, schematic front view when plane seat is positioned in plane to be measured;
Fig. 6 is the measurement point in the present invention on the lining face for the treatment of when measuring, and target ball is positioned at the target ball groove on plane seat, schematic top plan view when plane seat is positioned in plane to be measured;
In Fig. 7 the present invention when treating on test tube mouth end face the measurement point circumferentially gone up and measuring, schematic diagram when target ball and straight pin measuring seat are positioned on the mouth of pipe to be measured.
Embodiment
For shortening the installation period of main loop system in nuclear island of nuclear power plant, save installation cost, those skilled in the art thinks after studying, when installing primary heat transport system in nuclear island, can first respectively to main equipment to be installed (as pressure vessel, steam generator, main pump shell) carry out three-dimensional measurement, and the actual specification of each main equipment to be installed is calculated according to measurement result, the actual specification at the position that main equipment especially to be installed is connected with connecting pipe, the mouth of pipe center of circle of the heat pipe mouth on such as steam generator is relative to the position of the actual axial line of this steam generator, and then calculate installation specification when connecting pipe to be installed can be arranged between two main equipments according to the design specification of the main equipment marked in the design and installation drawing of nuclear island inner structure and connecting pipe.Then according to result of calculation, connecting pipe to be installed is processed, and main equipment to be installed to be lifted in nuclear island and installation in position.After main equipment installation to be installed, the connecting pipe processed is moved to predetermined installation site again, and main equipment and the connecting portion of connecting pipe are welded the main equipment in nuclear island is communicated with by connecting pipe, primary heat transport system installation in nuclear island.Concrete operation step is as follows:
The first step: main equipment to be installed is placed in reposefully on bracing or strutting arrangement so that measure it.When concrete operations, main equipment to be installed both can have been made to lie low on bracing or strutting arrangement, and namely pressure vessel 1 as shown in Figure 1 is in lying status, and main equipment to be installed also can be made to be erected on bracing or strutting arrangement.
Second step: the installation position determining measurement point and the quantity of measurement point laid on this installation position.
Installation supporting surface on main equipment to be installed is laid four measurement points do not overlapped to determine the plane at the installation supporting surface place on this main equipment to be installed.Installation supporting surface mentioned here refers to after by main equipment installation in position to be installed, for supporting this main equipment to be installed to attach it to other equipment or structural supporting surface on the outer wall being positioned at this main equipment to be installed; Or, being positioned at the inside of this main equipment to be installed, being arranged on this main equipment to be installed or other equipment of inside or the supporting surface of structure for supporting.Certainly, also three or five or more measurement points do not overlapped can be laid on installation supporting surface.
In on the mouth of pipe end face of the mouth of pipe that main equipment to be installed is connected with connecting pipe circumferentially on lay four measurement points do not overlapped with the coordinate of the plane at mouth of pipe end face place and the center of circle of this mouth of pipe of determining the mouth of pipe that this main equipment to be installed is connected with connecting pipe.Certainly, on the mouth of pipe end face of the mouth of pipe that also can be connected with connecting pipe on main equipment to be installed circumferentially on lay three or five or more measurement points do not overlapped.
When main equipment to be installed is pressure vessel, owing to being provided with body axis on pressure vessel body, then in a body axis, lay at least one measurement point to obtain the coordinate of the intersection point of not two body axis on the same line on this pressure vessel.
When main equipment to be installed is steam generator, there are two outstanding cylindrical bands at two ends due to steam generator, as shown in Figure 2, on the body surface of this steam generator, and on the outstanding cylindrical band at its two ends, get two circumference do not overlapped as the location circumference of actual axial line determining this steam generator, wherein, the circumference near its left end is location circumference A, and the circumference near its right-hand member is location circumference B.Certainly, these two location circumference both can all be positioned on the outstanding cylindrical band on this steam generator one end, also can lay respectively on the outstanding cylindrical band on these steam generator two ends.In addition, the body surface on the outstanding cylindrical band on steam generator can also choose three or more location circumference do not overlapped to determine to treat the actual axial line of steam generator.Choose the peak a of location circumference A and location circumference B 1and b 1, minimum point a 2and b 2and two side intermediate point a of location circumference A 3, a 4with two side intermediate point b of location circumference B 3, b 4as location measurement point circumferentially, to determine the three-dimensional coordinate of locating the center of circle A ' of circumference A and the center of circle B ' of location circumference B, and then determine that straight line draws the actual axial line of this steam generator according to 2.Certainly, three or five or more points do not overlapped can also circumferentially be chosen as measurement point to determine the actual axial line of this steam generator in location.In on the mouth of pipe end face of the heat pipe mouth on steam generator circumferentially or outer circumferentially lay four measurement points to determine the three-dimensional coordinate in the mouth of pipe center of circle of this heat pipe mouth.Certainly, also can on the mouth of pipe end face of heat pipe mouth in circumferentially or outer circumferentially lay the measurement point of three or five or more to determine the three-dimensional coordinate in the center of circle of this mouth of pipe.
When main equipment to be installed is main pump shell, as shown in Figures 3 and 4, this main pump shell lays four measurement points do not overlapped on the installation supporting surface C installing water conservancy parts, to determine the plane of installing supporting surface C place.Because the machining precision of the suction choma D on this main pump shell is very high, can be considered standard annulus, and its collar extension end face is parallel with installing the plane at supporting surface C place, thus on the collar extension end face sucking choma D in circumferentially or outer circumferentially lay four measurement points to determine the three-dimensional coordinate of the center of circle D ' of its collar extension.Like this, make to installing the plane at supporting surface C place the actual axial line that namely straight line L that perpendicular line obtains is this main pump shell by center of circle D '.Certainly, supporting surface can also choose the plane that point that three or five or more do not overlap determines to install supporting surface place installing, sucking in choma circumferentially or point that three or five or more do not overlap circumferentially is chosen to determine the center of circle of the collar extension of this suction choma in outer, and then determine the actual axial line of this main pump shell.In addition, on the mouth of pipe end face of the cold mouth of pipe E on main pump shell circumferentially on choose four measurement points do not overlapped, to determine the three-dimensional coordinate of the center of circle E ' of the mouth of pipe of this cold mouth of pipe E.Certainly, also can on the mouth of pipe end face of the cold mouth of pipe of main pump shell to be installed in circumferentially on choose measurement point that three or five or more do not overlap to determine the three-dimensional coordinate in the center of circle of this mouth of pipe.
3rd step: lay survey station point and common point.
Lay survey station point in the measurement place at main equipment place to be installed, the laser tracking measurement system be placed on survey station point can be measured measurement points to be measured all on main equipment to be installed.Such as shown in Figure 1, three survey station point A are set around pressure vessel 1 1, A 2and A 3, wherein, be positioned at survey station point A 1and A 3on laser tracking measurement system can measure along upper measurement point the mouth of pipe 11 on pressure vessel 1 is positioned at the mouth of pipe, be positioned at survey station point A 2on laser tracking measurement system can the measurement point that the inside of pressure vessel 1 is installed on supporting surface 12 be measured.Certainly, the position of survey station point and quantity are all determine according to measurement point position to be measured.
In order to improve measuring accuracy, in the measurement place at main equipment place to be installed to be measured, choose three measurement points do not overlapped as common point to make two adjacent survey station points interrelated, and all can observe at least one common point when laser tracking measurement system is positioned on any one survey station point.Preferably, for improving measuring accuracy, different common points has certain difference in height between any two.Certainly, four or more points do not overlapped also can be set in the measurement place of main equipment to be installed to be measured as common point, and these common points are positioned at same plane.
4th step: the coordinate data gathering the measurement point laid.
First open laser tracking measurement system and make its self calibration, run the 3 D Industrial Survey Software on the computing machine be connected with laser tracking measurement system simultaneously, and add laser tracking measurement system on this 3 D Industrial Survey Software interface.Then laser tracking measurement system is placed on survey station point, then coordinates the corresponding accessory of laser tracking measurement system to measure measurement point to be measured, and the coordinate data measuring all measurement points obtained is transferred in 3 D Industrial Survey Software.Preferably, by RJ45 interface, laser tracking measurement system and computing machine are linked together.In addition, when measuring, laser tracker is usually selected to measure measurement point as laser tracking measurement system.
As illustrated in Figures 5 and 6, when measurement point to be measured is positioned in plane, first plane seat 2 is placed in the plane 3 at measurement point place to be measured, and the plane 3 at the bottom surface of plane seat 2 and measurement point place to be measured is fitted tightly, then be placed in by target ball 4 in the target ball groove on plane seat 2, recycling laser tracker is measured target ball 4 and draws the coordinate data of the centre of sphere of target ball 4.When being positioned at the target ball groove on plane seat due to target ball, its centre of sphere is known to the vertical range of plane seat bottom surface, so, by calculating to obtain the coordinate of the measurement point to be measured on out-of-plane 3.When being laid with two or more measurement point at grade, only plane seat position on this plane need be adjusted as required.Certainly, multipair plane seat and target ball also can be used to measure different measurement points respectively.
When measurement point to be measured be positioned at mouth of pipe end face is circumferentially gone up time, as shown in Figure 7, first straight pin measuring seat 5 is placed on the mouth of pipe 6 end, and make the side of the right cylinder 51 of this straight pin measuring seat 5 bottom and the tangent laminating of inwall of the mouth of pipe 6, the bottom surface of the measuring seat 52 on top and the end face of the mouth of pipe 6 fit tightly, then be placed in by target ball 7 in the target ball groove on straight pin measuring seat 5, recycling laser tracker is measured target ball 7 and draws the coordinate data of the centre of sphere of target ball 7.When being positioned at the target ball groove on straight pin measuring seat due to target ball, its centre of sphere is all known to the vertical range of the side of the right cylinder 51 of the vertical range of the bottom surface of the measuring seat 52 on this straight pin measuring seat 2 top and bottom, so, by calculating the three-dimensional coordinate that can draw in the mouth of pipe to be measured the measurement point to be measured circumferentially gone up.If on same mouth of pipe end face circumferentially on when having multiple measurement point, only need adjust the position of straight pin measuring seat on the mouth of pipe to be measured.Multipair straight pin measuring seat and target ball can certainly be used to measure different measurement points respectively.When measurement point to be measured be positioned at outer on mouth of pipe end face circumferentially time, when such as the upper outside measurement point circumferentially gone up of the collar extension end face of the suction choma be positioned on main pump shell being measured, also straight pin measuring seat and target ball is used to coordinate laser tracker to measure this measurement point to be measured, now, straight pin measuring seat is positioned at collar extension end, and the cylindrical side of this straight pin measuring seat bottom and the tangent laminating of the suction outer wall of choma near collar extension end, bottom surface and the collar extension end face of the measuring seat on top fit tightly, target ball is positioned at the target ball groove on straight pin measuring seat.After use laser tracker measures the sphere centre coordinate of target ball, the three-dimensional coordinate of measurement point to be measured can be calculated.
In addition, when measurement point to be measured is single point, intelligent gauge head can be adopted to coordinate laser tracker to measure this measurement point to be measured.When such as measuring the measurement point in the body axis being denoted as 0 °, 90 °, 180 ° and 270 ° on pressure vessel, intelligent gauge head can be adopted to coordinate laser tracker to measure.
Certainly, record measurement data for convenience, can also name measurement point to be measured before image data, different measurement points to be measured is distinguished.Preferably, according to the form of " project name-group name-Devices to test identification number ", measurement point to be measured is named.Like this, staff when recording data, after can being directly recorded in its title by measuring the data that obtain, the data being convenient to technician's difference group identify, avoid data obfuscation, and then avoid calculating misdata, improve the efficiency of installing primary heat transport system.
5th step: the coordinate data processing the measurement point on each main equipment to be installed of collecting, and the principal body axes setting up each main equipment to be installed is to obtain the installation specification of the connecting pipe for connecting each main equipment to be installed.
3 D Industrial Survey Software is utilized to calculate the plane at the mouth of pipe end face place of the mouth of pipe that the plane at the installation supporting surface place of main equipment to be installed and main equipment to be installed are connected with connecting pipe according to the coordinate data recorded, set up the body coordinate system of main equipment to be installed, and under the coordinate data that measurement obtains is converted to the body coordinate system of main equipment to be installed, so that technician checks the actual specification of the main equipment to be installed calculated through 3 D Industrial Survey Software, and then according to the installation site of each main equipment to be installed marked in the actual specification of main equipment to be installed and the design and installation drawing of nuclear island inner structure and the relative position between them, calculate the installation specification of connecting pipe.Preferably; when calculating the installation specification of connecting pipe; making its precision meet number of patent application is 200610121459.2; denomination of invention is the requirement of the narrow gap auto welding connection technology welding in large posted sides pipeline narrow gap tungsten electrode noble gas protecting all-position automatic soldering method, to improve speed of welding and welding effect.
When the body coordinate system of build-up pressure container, preferably, with the plane at the installation supporting surface place of this pressure vessel inside for XOY plane, with the intersection point of 0 on this pressure vessel ° and the body axis of 180 ° and 90 ° and the vertical projection of body axis in XOY plane of 270 ° for true origin, and with vertical projection in XOY plane of 0 on this pressure vessel ° and the body axis of 180 ° for X-axis.Certainly, also X-axis can be projected as with 90 on this pressure vessel ° and the body axis of 270 ° in XOY plane.
When setting up the body coordinate system of steam generator, preferably, with the actual axial line of this steam generator for Z axis, with the mouth of pipe center of circle of the heat pipe mouth of this steam generator perpendicular to the straight line at the straight-line segment place of Z axis for X-axis.
When setting up the body coordinate system of main pump shell, preferably, with the plane at the installation supporting surface place of this main pump shell inside for XOY plane, with the actual axial line of this main pump shell for Z axis.Further preferably, the vertical projection on supporting surface is being installed for X-axis with the mouth of pipe center of circle of the cold mouth of pipe on this main pump shell perpendicular to the straight line at the straight-line segment place of Z axis.
When setting up the body coordinate system of main equipment to be installed, only the data recorded need be converted to after under this coordinate system, technician can check the actual specification of the main equipment to be installed calculated very easily, so calculate connecting pipe installation specification so that connecting pipe processing and install.
Preferably, adopt SpatialAnalyzer Survey Software collection and process data.SpatialAnalyzer (SA) is the three-dimensional measurement analysis software that can trace to the source, and simultaneously and many dissimilar measuring system communications, and can realize the analysis task of complexity rapidly.SA makes user utilize Portable Measurement Instrument (as laser tracker, Local GPS, portable type measuring arm, total powerstation, laser scanner etc.) to create easily, checks and reverse engineer.SA is that each surveying instrument provides succinct General Purpose Interface, and such as all types of laser tracker (Leica, FARO, SMX and API) has common user interface.If user can use the laser tracker of Leica to measure, the instrument of FARO or API so also will be used.SA is also a kind of software that simultaneously can run multiple stage surveying instrument, enables factory keep production line Efficient Operation, the impact of time is minimized.The image-context of SA allows user to be loaded into cad model (such as CATIA, UG etc.) with the STEP form of iso standard (or form of other industrial standards), then perform all measurements and analysis in this context, comprise GD & T.
6th step: connecting pipe to be installed is processed and installs the primary heat transport system in nuclear island.
First according to the installation specification of the connecting pipe calculated, process connecting pipe to be installed, when being grouping to make the mouth of pipe on the two ends of connecting pipe to be installed and main equipment, group is less and precision is higher to gap.Like this, the actual specification of connecting pipe to be installed can be made to meet installation requirement by time processing, when installing primary heat transport system in nuclear island, only once need lift and connecting pipe can be arranged between two main equipments, decrease processing and lifting number of times, improve the installation effectiveness of primary heat transport system in nuclear island, save installation cost.Then main equipment to be installed to be lifted in nuclear island and installation in position, and after main equipment installation to be installed, the connecting pipe processed to be moved to predetermined installation site.To the lifting of main equipment to be installed, both can carry out before connecting pipe to be installed is processed, also can carry out man-hour adding connecting pipe to be installed, certainly can also carry out after connecting pipe to be installed machines, as long as can by main equipment installation in position to be installed before carrying out lifting to connecting pipe to be installed.Welding main equipment and the connecting portion of connecting pipe makes each main equipment in nuclear island be communicated with by connecting pipe again, makes the primary heat transport system installation in nuclear island.Preferably, narrow gap auto welding connection technology is adopted to weld the connecting portion of connecting pipe with the mouth of pipe on main equipment.Like this, not only welding effect is good, and speed of welding is fast, the connection of the main equipment in connecting pipe and nuclear island can be completed fast, complete the installation of the primary heat transport system in nuclear island, make the primary heat transport system conducting in nuclear island, shorten the set-up time of primary heat transport system in nuclear island, improve installation effectiveness, reduce installation cost.

Claims (9)

1. install a method for main loop system in nuclear island of nuclear power plant, it is characterized in that, this installation method comprises the steps:
The first step, is placed on bracing or strutting arrangement by main equipment to be installed, and described main equipment is pressure vessel, steam generator or main pump shell;
Second step, the installation position determining measurement point and the quantity of measurement point laid on described installation position:
The installation supporting surface of described pressure vessel inside is laid at least three measurement points do not overlapped to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described pressure vessel is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, a body axis on described pressure vessel is laid at least one measurement point to obtain the coordinate of the intersection point of not two body axis on the same line on this pressure vessel;
The installation supporting surface that described steam generator is outside and inner lays at least three measurement points do not overlapped respectively to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described steam generator is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, outstanding cylindrical band on described steam generator is chosen at least two axial line location circumference do not overlapped, and circumferentially lay at least three measurement points do not overlapped in described location to determine the actual axial line of this steam generator,
The installation supporting surface of described main pump shell inside is laid at least three measurement points do not overlapped to determine the plane at described installation supporting surface place, in on the mouth of pipe end face of the mouth of pipe that described main pump shell is connected with connecting pipe circumferentially on lay at least three measurement points do not overlapped with the coordinate in the center of circle of the plane and this mouth of pipe of determining this mouth of pipe end face place, on the collar extension end face of the suction choma of described main pump shell circumferentially or outer circumferentially lay at least three measurement points do not overlapped to determine the actual axial line of this main pump shell;
3rd step, lay survey station point and common point:
Lay survey station point in the measurement place at described main equipment place to be installed, the laser tracking measurement system be placed on described survey station point can be measured all measurement points laid; Choose at least three common points in same plane in the measurement place at described main equipment place to be installed to make described survey station point interrelated, and all can measure described common point when described laser tracking measurement system is positioned on any one survey station point;
4th step, gathers the coordinate data of the measurement point laid:
First open described laser tracking measurement system and make its self calibration, and run the 3 D Industrial Survey Software on the computing machine that is connected with described laser tracking measurement system, and on the interface of this 3 D Industrial Survey Software, add described laser tracking measurement system; Then laser tracking measurement system is placed on survey station point, then coordinates the accessory of described laser tracking measurement system to measure described measurement point, and be transferred in described 3 D Industrial Survey Software by measuring the coordinate data obtained;
5th step, processes the coordinate data of the measurement point collected, and sets up the body coordinate system of described main equipment to be installed, calculate the installation specification of described connecting pipe:
Described 3 D Industrial Survey Software is utilized to calculate the coordinate in the plane at the installation supporting surface place on described main equipment to be installed and/or the plane at mouth of pipe end face place of the described mouth of pipe and the center of circle of this mouth of pipe and/or actual axial line, and set up the body coordinate system of described main equipment to be installed, by measure the coordinate data of measurement point obtained be converted to the body coordinate system of described main equipment to be installed under and calculate the installation specification of described connecting pipe;
6th step, described connecting pipe is processed and the primary heat transport system in nuclear island is installed:
According to the installation specification of the described connecting pipe calculated, described connecting pipe is processed, and after machining, described connecting pipe is placed in predetermined installation site, again the main equipment of described connecting pipe and installation in position is welded together, and make described primary heat transport system conducting, primary heat transport system installation in nuclear island.
2. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1, is characterized in that, described 3 D Industrial Survey Software is SpatialAnalyzer Survey Software.
3. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the second step of the method, described installation supporting surface lays four measurement points.
4. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the second step of the method, in described circumferentially or outer circumferentially lay four measurement points.
5. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the second step of the method, circumferentially lays four measurement points in described location.
6. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the 3rd step of the method, chooses four common points, and has certain difference in height between any two.
7. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, it is characterized in that, in the 4th step of the method, before described measurement point is measured, according to the form of " project name-group name-Devices to test identification number ", described measurement point is named.
8. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the 5th step of the method,
With the plane at the installation supporting surface place of described pressure vessel inside for XOY plane, with the intersection point of the vertical projection of this pressure vessel does not overlap two body axis in this XOY plane for true origin, and with the vertical projection of the body axis of on this pressure vessel in this XOY plane for X-axis, set up the body coordinate system of described pressure vessel;
With the actual axial line of described steam generator for Z axis, with the mouth of pipe center of circle of the heat pipe mouth of this steam generator perpendicular to the straight line at the straight-line segment place of this Z axis for X-axis, set up the body coordinate system of described steam generator;
With the plane at the installation supporting surface place of described main pump shell inside for XOY plane, with the actual axial line of this main pump shell for Z axis, set up the body coordinate system of described main pump shell.
9. the method for installation main loop system in nuclear island of nuclear power plant according to claim 1 and 2, is characterized in that, in the 6th step of the method, adopts narrow gap auto welding connection technology to weld with the connecting portion of described main equipment described connecting pipe to be installed.
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CN103839599A (en) * 2013-12-15 2014-06-04 中广核工程有限公司 Measurement method for as-built size of nuclear power station pressure vessel
CN103769723B (en) * 2013-12-31 2015-09-30 中国能源建设集团浙江火电建设有限公司 A kind of nuclear island primary Ioops main pipeline installation method
CN105741892A (en) * 2014-12-12 2016-07-06 中广核工程有限公司 Nuclear power plant main pump case completion dimension measurement method
CN107339932B (en) * 2016-12-23 2020-11-03 广东核电合营有限公司 Method for integrally replacing connecting pipe
CN106964976B (en) * 2017-05-03 2018-11-09 中国核工业第五建设有限公司 The main pump of AP1000 nuclear power stations measures installation method
CN107221366B (en) * 2017-05-31 2019-03-01 中国核工业第五建设有限公司 The measurement installation method of primary heat transport system in AP1000 nuclear power station
CN109524134A (en) * 2018-09-22 2019-03-26 中核能源科技有限公司 A kind of measuring device and method for HTGR Nuclear Power Plant in-pile component
CN111220041A (en) * 2019-12-11 2020-06-02 苏州热工研究院有限公司 Nuclear power plant primary loop system installation process attitude monitoring system and method

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