CN108278997A - A kind of nuclear power station main equipment control net and its method for building up - Google Patents
A kind of nuclear power station main equipment control net and its method for building up Download PDFInfo
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- CN108278997A CN108278997A CN201711474434.5A CN201711474434A CN108278997A CN 108278997 A CN108278997 A CN 108278997A CN 201711474434 A CN201711474434 A CN 201711474434A CN 108278997 A CN108278997 A CN 108278997A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/04—Permanent marks; Boundary markers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/06—Surveyors' staffs; Movable markers
- G01C15/08—Plumbing or registering staffs or markers over ground marks
Abstract
The invention belongs to nuclear power station main equipment Construction Control fields, and in particular to a kind of nuclear power station main equipment control net and its method for building up.In order to solve the problem of between existing triangle control net has control point when the nuclear power main equipment larger as main equipment structure controls net can not phase intercommunication video, the invention discloses a kind of completely new nuclear power station main equipments to control net.The nuclear power station main equipment controls net, including a benchmark point and six main control points；Benchmark point is located at the position directly above of reactor core point, peripheral direction of six Master Node bit distributions in benchmark point；Phase intercommunication video between benchmark point and six main control points, and phase intercommunication video between main control point adjacent in six master control points.The main equipment of the present invention controls net, can not only be covered to entire main equipment region, but also extend to each loop area, to improve the precision measured with unwrapping wire.
Description
Technical field
The invention belongs to nuclear power station main equipment Construction Control fields, and in particular to a kind of nuclear power station main equipment control net
And its method for building up.
Background technology
The reactor coolant loop of pressurized-water reactor nuclear power plant generally has two to four and is connected in parallel on reactor pressure vessel
Closed loop, each loop are made of a steam generator, one or two main pumps and corresponding main pipeline.Main equipment control
Net processed is and the measuring basis established in order to ensure effective installation of nuclear power plant reactor main equipment, and effect is for main equipment
Accurate installation carries out measurement and positioning unwrapping wire.
In conjunction with shown in Fig. 1, most of generation Ⅲ nuclear power unit is made of three loops at present, and uses trigonometric framework
Net is controlled as main equipment.Wherein, trigonometric framework is located at the periphery of nuclear island heap chamber 1, including a benchmark point 2 and three controls
Point 3 processed, wherein benchmark point 2 are located at the top position of reactor core point.However, due to the change of main equipment in some nuclear power stations
Change, may result in trigonometric framework can not normal use.For example, in magnificent imperial No.1 nuclear power station, due to main equipment structure
It improves, the radius size of nuclear island heap chamber is made to become larger, cause three control points in above-mentioned trigonometric framework can not phase intercommunication video.
Moreover, because limited by magnificent imperial No.1 nuclear island heap chamber surrounding devices, it can not be by increasing in above-mentioned trigonometric framework three
The distance between point is controlled, realizes the phase intercommunication video between control point.
Invention content
In order to solve existing triangle control net when the nuclear power main equipment larger as main equipment structure controls net, deposit
Between controlling point can not phase intercommunication video the problem of, the present invention proposes a kind of completely new nuclear power station main equipment control net.It should
Nuclear power station main equipment controls net, including a benchmark point and six main control points；The benchmark point is located at reactor core point
Position directly above, peripheral direction of six Master Node bit distributions in the benchmark point；The benchmark point with six
Phase intercommunication video between the main control point, and phase intercommunication between main control point adjacent in six master control points
Depending on.
Preferably, six main control points are respectively the first main control point, the second main control point, third master control
Point, the 4th main control point, the 5th main control point and the 6th main control point processed；Wherein, the first main control point and
Two main control points are located at same loop, and third main control point and the 4th main control point are located at same loop, the 5th master control
Point processed and the 6th main control point are located at same loop, and the first main control point, third main control point and the 5th master
Control point is located in each self loop on the hot center line of steam generator.
It is further preferred that main equipment control net further includes six sub-control points；Six sub-control points are distributed in
The outer circumferential position of six main control points, and with six mutual intervisibilities of main control point.
It is further preferred that six sub-control points be respectively for the first sub-control point, the second sub-control point,
Third sub-control point, fourth officer control point, the 5th sub-control point and the 6th sub-control point；Wherein,
First sub-control point and the second sub-control point are located at same with the first main control point and the second main control point
One loop, and the first sub-control point and the first mutual intervisibility of main control point, the second sub-control point and the second main control
Point phase intercommunication video, the first sub-control point and the second sub-control point phase intercommunication video；
Third sub-control point and fourth officer control point are located at same with third main control point and the 4th main control point
One loop, and third sub-control point and the mutual intervisibility of third main control point, fourth officer control point and the 4th main control
Point phase intercommunication video, third sub-control point control the mutual intervisibility of point with fourth officer；
5th sub-control point and the 6th sub-control point are located at same with the 5th main control point and the 6th main control point
One loop, and the 5th sub-control point and the 5th mutual intervisibility of main control point, the 6th sub-control point and the 6th main control
Point phase intercommunication video, the 5th sub-control point and the 6th sub-control point phase intercommunication video.
It is further preferred that the second sub-control point, fourth officer control point and the 6th sub-control point and each self loop
The central point of middle main pump is corresponding.
It is further preferred that the first sub-control point, third sub-control point and the 5th sub-control point are located at respective ring
In road on the hot center line of steam generator.
It is further preferred that the sub-control point on the hot center line of same steam generator and Master Node
Position is centrosymmetrically arranged relative to the steam generator.
A method of above-mentioned nuclear power station main equipment control net is established, is included the following steps：
Step S1 establishes benchmark point；By nadir instrument and total powerstation, vertically by reactor core point lead to ground with
On, determine benchmark point；
Step S2 establishes control point；Centered on benchmark point, six Master Nodes are set around benchmark point
Position and six sub-control points；Wherein, main control point and two sub-control points there are two being set in each loop area, and
Two main control points and two sub-control points in same loop form four sides and control net；
Step S3, control net detection；First, it carries out control net field operation to measure, obtains benchmark point and all control points
Angle-data and range data；Then, the data obtained are measured field operation and carry out adjustment processing, obtain assessment data；Then,
Assessment data are analyzed, judge whether the installation site of benchmark point and control point is qualified.
Preferably, in the step S2, first, the subpoint position of all control points on the ground is carried out true
It is fixed；Then, supporting rack is set up above subpoint, makes to protect between benchmark point and control point and between control point itself
Hold intervisibility state.
Preferably, in the step S3, benchmark point and control point are carried out successively using corner precision angle method
It measures, and each point carries out multiple survey time, is averaged to multiple survey time, obtains final angle-data and apart from number
According to.
Nuclear power station main equipment using the present invention controls net, as the control net that main equipment in nuclear power station is installed, have with
Lower advantageous effect：
1, nuclear power station main equipment of the invention controls net, and centered on benchmark point, two layers is established around it mutually
The control point of intervisibility, and extend respectively to three loop regions.In this way, passing through the phase intercommunication of successively control point interdigit
Depending in the case where ensureing to control net precision, expanding the overlay area of entire main equipment control net, and pass through Master Node
The local quadrangle that position and sub-control point are formed in each loop region controls net, further improves control net to steaming
The control accuracy of vapour generator and main pump region, to improve the overall precision of main equipment control net and be set to entirely master
Preparation area domain measures the speed of line setting.
It 2, in the present invention, will be in same loop by the position selection to master control point and sub-control point
One of main control point and one of sub-control point are located on hot center line simultaneously, and are arranged in steam
Another sub-control point is arranged in position corresponding with main pump central point, to further increase by the both sides of generator
The speed and precision of line setting are measured to steam generator in main equipment and main pump using equipment control net.
Description of the drawings
Fig. 1 is the structural schematic diagram of main equipment control net in the prior art；
Fig. 2 is the structural schematic diagram of nuclear power station main equipment control net in the present invention；
Fig. 3 is the Establishing process schematic diagram of nuclear power station main equipment of the present invention control net.
Specific implementation mode
Technical scheme of the present invention is described further below in conjunction with the accompanying drawings.
In conjunction with shown in Fig. 2, nuclear power station main equipment of the invention controls net, including a benchmark point 4 and six main controls
Point.Wherein, benchmark point 4 is located at the position directly above of reactor core point.Week of six Master Node bit distributions in benchmark point 4
Enclose, and with 4 phase intercommunication video of benchmark point.
In the present embodiment, six main control points are centered on benchmark point 4, and distinguish successively in the counterclockwise direction
For the first main control point 51, the second main control point 52, third main control point 53, the 4th main control point the 54, the 5th master
Control point 55 and the 6th main control point 56.Wherein, the first main control point 51 and the second main control point 52 are located at same
Loop, and the first main control point 51 is located in the loop on the hot center line of steam generator；Third main control point
53 and the 4th main control point 54 be located at same loop, and third main control point 53 is located at steam generator in the loop
On hot center line；5th main control point 55 and the 6th main control point 56 are located at same loop, and the 5th Master Node
Position 55 is located in the loop on the hot center line of steam generator.
At this point, centered on benchmark point 4, six main control points are vertex, form while covering the six of three loops
Side shape controls net.Wherein, the second main control point 52, the 4th main control point 54 and the 6th main control point 56 are as switching
Point, at the same in two adjacent loops another main control point and benchmark point keep intervisibility, to make benchmark point 4
The whole control net of intervisibility is formed with six main control points.
Wherein, in the present embodiment, by the first main control point 51, third main control point 53 and the 5th main control point
55 are separately positioned on the hot center line of three steam generators.Installation survey is carried out to steam generator in this way, can improve
The speed and precision when line setting are measured, to improve the accuracy installed to steam generator.
The nuclear power station main equipment of the present invention controls net, further includes six sub-control points.Six sub-control points are distributed in
The outer circumferential position of six main control points is followed successively by the first sub-control point 61, the second sub-control point in the counterclockwise direction
62, third sub-control point 63, fourth officer control point 64, the 5th sub-control point 65 and the 6th sub-control point 66.
Wherein, the first sub-control point 61 and the second sub-control point 62 and the first main control point 51 and the second main control
Point 52 is located at same loop, and the first sub-control point 61 simultaneously with the second sub-control point 62 and the first main control point
51 intervisibilities, the second sub-control point 62 simultaneously with 52 intervisibility of the first sub-control point 61 and the second main control point.In this way,
One is formed between one sub-control point 61, the second sub-control point 62, the first main control point 51 and the second main control point 52
A local quadrangle control net that the loop is precisely covered, and pass through the first main control point 51 and the second main control
Point 52 and 4 intervisibility of benchmark point, to expand the coverage area of entire main equipment control net.
Similarly, point 64 and the 5th sub-control point 65 and the 6th are controlled by third sub-control point 63 and fourth officer
Sub-control point 66 has carried out accurate covering to other two loop respectively, to improve covering for entire main equipment control net
Lid range and covering precision.
It is further preferred that by the setting of the first sub-control point 61 in the 51 hot center line in place of the first main control point
On, and be arranged symmetrically relative to steam generator with the first main control point 51；By the setting of third sub-control point 63 the
Where three main control point 53 on hot center line, and with third main control point 53 relative to the symmetrical cloth of steam generator
It sets；By the setting of the 5th sub-control point 65 where the 5th main control point 55 on hot center line, and with the 5th main control
Point 55 is arranged symmetrically relative to steam generator.It is drawn in this way, can further increase and measure positioning to steam generator
The speed and precision of line, and then ensure the precision of main equipment installation.
It is further preferred that by the second sub-control point 62, fourth officer control point 64 and the 6th sub-control point 66, cloth
It sets in respective institute position corresponding with main pump central point in the loop, to improve the speed for measuring positioning marking to main pump
Degree and precision, and then ensure the precision of main equipment installation.
In addition, in the present embodiment, to the first main control point 51, third main control point 53 and the 5th main control point
The distance between 55 and benchmark point 4 are placed equidistant with, and to the second main control point 52,54 and of the 4th main control point
The distance between 6th main control point 56 and benchmark point 4 are placed equidistant with.In this way, being set to master using main control point
For when measuring positioning marking, the precision of positioning and the speed of operation can be improved.
In conjunction with shown in Fig. 2 and Fig. 3, to the present invention nuclear power station main equipment control net established the specific steps are：
Step S1 establishes benchmark point.First, the supporting rack with certain altitude is set up in reactor core point position.Then, exist
Nadir instrument is set on supporting rack, utilizes nadir instrument centering reactor core point.Then, nadir instrument is removed, total powerstation is installed, and utilize
Total powerstation carries out direction value measurement, and according to survey to 90 °, 180 °, 270 ° of datum axis respectively using 0 ° as datum axis
Amount result re-starts adjustment to the position of total powerstation, until the direction value deviation measured is ± 10 " within, to complete benchmark
The foundation of point.
In the present embodiment, since reactor core point is located at the positions -5.4m, and main control point is respectively positioned on ground with upper
It sets, it is therefore desirable to the height that benchmark point is promoted by supporting rack, it is logical between benchmark point and main control point to ensure
Depending on.Wherein, the specific height of supporting rack can be adjusted and determine according to the concrete condition at scene, as long as ensureing datum mark
Position can keep intervisibility with main control point.
Step S2 establishes control point.First, according to the concrete condition at scene, pass through plotting mode or survey calculation side
Formula determines the theoretical position of six main control points and six sub-control points, you can to ensure phase between related point simultaneously
Intercommunication video can also carry out the position of point foundation.Then, it using the total powerstation mounted on benchmark point, measures and determines and is all
The datum mark of point on the ground is controlled, that is, controls the projected position of point on the ground, and be marked on ground.So
Afterwards, according to the concrete condition around each datum mark, the supporting rack of different height is set up in the position directly above of datum mark, to protect
Phase intercommunication video between the related point of card.
Wherein, in the present embodiment, the datum mark time-division two by total station survey and determining control point on the ground
Step is operated：The first step determines the datum mark of control point on the ground by total powerstation, and solid in the reference point location
Fixed one piece of stainless steel plate, fixes one piece of stainless steel plate on the ground for example, by using nailing gun；Second step, again by total powerstation
It determines the datum mark of control point on stainless steel, and carries out permanent marker on stainless steel, rushed for example, by using ocean
One point centre bore of punching.In this way, the datum mark can be made to obtain prolonged reservation, to ensure that entirely master sets in the later stage
In standby installation process, the datum mark can be quickly and easily found out at any time, and then use the control point.
Step S3, control net detection.
First, it carries out control net field operation to measure, obtains the angle-data of benchmark point and each control point and apart from number
According to.Wherein, in the present embodiment, benchmark point and control point are observed successively using triangulateration network precision angle method, and
And in order to reduce the error of observation, four survey time are carried out to each point, the data of four survey time are averaged, are obtained
The angle-data and range data of the final point.It equally, in other embodiments, can also as the case may be, to each
A point carries out the different survey time.
Wherein, when being observed to benchmark point, total powerstation is mounted on benchmark point, is oriented with 90 ° of datum lines, according to
The secondary control point to directly intervisibility is observed, i.e., is observed to all main control points, the sequence of observation is successively
For the 4th main control point, third main control point, the second main control point, the first main control point, the 5th main control point
With the 6th main control point.The angle-data and range data of four survey time are recorded, and to the angle of four survey time
Data and range data are averaging processing respectively, are averaged the angle-data finally observed as benchmark point and apart from number
According to.
When being observed to the first main control point, total powerstation is mounted on the first main control point, with benchmark point
Orientation, is successively observed the control point of directly intervisibility, respectively the second main control point, the second sub-control point
Position, the first sub-control point and the 6th main control point.The angle-data and range data of four survey time are recorded, and
The angle-data and range data of four survey time be averaging processing respectively, is averaged and is finally observed as benchmark point
Angle-data and range data.
Similarly, according to the observation procedure to the first main control point, other main control points are observed successively, and
Obtain the angle-data and range data that Control point position is finally observed.
When being observed to the first sub-control point, total powerstation is mounted on the first sub-control point, with the first master control
Point orientation processed, is observed directly intervisibility point, i.e., is observed to the second sub-control point.To four survey time
Angle-data and range data are recorded, and angle-data to four survey time and range data carry out average place respectively
Reason, is averaged the angle-data finally observed as benchmark point and range data.
Similarly, according to the observation procedure to the first sub-control point, other sub-control points are observed successively, and
Obtain the angle-data and range data that Control point position is finally observed.
Then, the angle-data of each point that is obtained in measuring field operation and adjustment processing is carried out apart from distance, obtained
Assess data.Wherein, in the present embodiment, the data for observing acquisition above are carried out at adjustment using the stupid measurement adjustment software of section
Reason obtains the assessment data of each point in control net, including error in error in point measurement, loop closure and posteriority weight unit.
Then, assessment data are analyzed, judges whether the installation site of benchmark point and each control point is qualified.
If assessment defect of data, need to be adjusted the point until qualified, it is on the contrary then indicate that the point is qualified.When all
When point is all qualified, then the foundation of entire control net is completed and qualified.
In the present embodiment, respectively in assessment data error in point measurement, in loop closure and posteriority weight unit error into
Row allowable range of error compares, to judge whether corresponding point is qualified.Wherein, by error in point measurement control within ± 1mm, by ring
Mis-tie misclosure is controlled ± 24 " within, by control errors in posteriority weight unit 5 " within, to ensure the observation essence of entire control net
Degree.
In addition, when carrying out control net field operation measurement, it is also necessary to be monitored to observation process, to ensure observation process
It is correct, and then ensure observation obtain data accuracy.Wherein, when carrying out angular observation to the same point, it is desirable that half
Survey time zero difference is less than 4 ", 2C mutual deviations are less than 8 in a survey time ", and same direction value each survey time is poor to be less than 4 ", and triangle closes
Closing difference should be ± 15 " within, loop closure should be ± 24 " within.When being observed into row distance the same point, it is desirable that one surveys
Readback number is poor to be less than 1.5mm, length of side ranging round-trip each three survey time.
Claims (10)
1. a kind of nuclear power station main equipment controls net, which is characterized in that including a benchmark point and six main control points；It is described
Benchmark point is located at the position directly above of reactor core point, six Master Node bit distributions side around the benchmark point
To；Phase intercommunication video between the benchmark point and six main control points, and it is adjacent in six master control points
Phase intercommunication video between main control point.
2. nuclear power station main equipment according to claim 1 controls net, which is characterized in that six main control point difference
For the first main control point, the second main control point, third main control point, the 4th main control point, the 5th main control point
With the 6th main control point；Wherein, the first main control point and the second main control point are located at same loop, third Master Node
Position and the 4th main control point are located at same loop, and the 5th main control point and the 6th main control point are located at same loop, and
And the first main control point, third main control point and the 5th main control point are located at steam generator in each self loop
On hot center line.
3. nuclear power station main equipment according to claim 2 controls net, which is characterized in that it further includes six that the main equipment, which controls net,
A sub-control point；Six sub-control points are distributed in the outer circumferential position of six main control points, and with six main controls
Point phase intercommunication video.
4. nuclear power station main equipment according to claim 3 controls net, which is characterized in that six sub-control point difference
To control point, the 5th sub-control point for the first sub-control point, the second sub-control point, third sub-control point, fourth officer
Position and the 6th sub-control point；Wherein,
First sub-control point and the second sub-control point are located at same ring with the first main control point and the second main control point
Road, and the first sub-control point and the first mutual intervisibility of main control point, the second sub-control point and the second main control point
Phase intercommunication video, the first sub-control point and the second sub-control point phase intercommunication video；
Third sub-control point and fourth officer control point are located at same ring with third main control point and the 4th main control point
Road, and third sub-control point and the mutual intervisibility of third main control point, fourth officer control point and the 4th main control point
Phase intercommunication video, third sub-control point control the mutual intervisibility of point with fourth officer；
5th sub-control point and the 6th sub-control point are located at same ring with the 5th main control point and the 6th main control point
Road, and the 5th sub-control point and the 5th mutual intervisibility of main control point, the 6th sub-control point and the 6th main control point
Phase intercommunication video, the 5th sub-control point and the 6th sub-control point phase intercommunication video.
5. nuclear power station main equipment according to claim 4 controls net, which is characterized in that the second sub-control point, fourth officer
It controls point and the 6th sub-control point is corresponding with the central point of main pump in each self loop.
6. nuclear power station main equipment according to claim 4 controls net, which is characterized in that the first sub-control point, third pair
Control point and the 5th sub-control point are located in each self loop on the hot center line of steam generator.
7. nuclear power station main equipment according to claim 6 controls net, which is characterized in that be located at same steam generator
Sub-control point and main control point on hot center line are centrosymmetrically arranged relative to the steam generator.
8. a kind of method for establishing any one of claim 1-7 nuclear power station main equipment control nets, which is characterized in that packet
Include following steps：
Step S1 establishes benchmark point；By nadir instrument and total powerstation, reactor core point is vertically led into ground or more, really
Determine benchmark point；
Step S2 establishes control point；Centered on benchmark point, be arranged around benchmark point six main control points and
Six sub-control points；Wherein, main control point and two sub-control points there are two being set in each loop area, and be located at
Two main control points and two sub-control points in same loop form four sides and control net；
Step S3, control net detection；First, it carries out control net field operation to measure, obtains the angle of benchmark point and all control points
Degrees of data and range data；Then, the data obtained are measured field operation and carry out adjustment processing, obtain assessment data；Then, to commenting
Estimate data to be analyzed, judges whether the installation site of benchmark point and control point is qualified.
9. the method for building up of nuclear power station main equipment control net according to claim 8, which is characterized in that in the step S2
In, first, the subpoint position of all control points on the ground is determined；Then, support is set up above subpoint
Frame makes to keep intervisibility state between benchmark point and control point and between control point itself.
10. the method for building up of nuclear power station main equipment control net according to claim 8, which is characterized in that in the step
In S3, benchmark point and control point are measured successively using corner precision angle method, and the progress of each point is more
A survey time is averaged multiple survey time, obtains final angle-data and range data.
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| CN110645967A (en) * | 2019-09-10 | 2020-01-03 | 中铁大桥局第七工程有限公司 | Positioning measurement method for structure in cofferdam |
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| GB2541475A (en) * | 2015-08-18 | 2017-02-22 | China Nuclear Power Eng Co Ltd | Structural layout of primary loop of nuclear reactor coolant system |
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| CN110645967B (en) * | 2019-09-10 | 2021-06-15 | 中铁大桥局第七工程有限公司 | Positioning measurement method for structure in cofferdam |
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