CN108278998A - A kind of nuclear power station ring hangs control net and its method for building up - Google Patents
A kind of nuclear power station ring hangs control net and its method for building up Download PDFInfo
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- CN108278998A CN108278998A CN201711476930.4A CN201711476930A CN108278998A CN 108278998 A CN108278998 A CN 108278998A CN 201711476930 A CN201711476930 A CN 201711476930A CN 108278998 A CN108278998 A CN 108278998A
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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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Abstract
The invention belongs to technical field of nuclear power station construction, and in particular to a kind of nuclear power station ring hangs control net and its method for building up.In order to solve to lift up into the measurement of row installation process to ring using total powerstation merely, it is understood that there may be measurement accuracy is low and the small problem of measurement range, and the invention discloses a kind of nuclear power station rings to hang control net.The nuclear power station ring hangs control net, including a benchmark point and multiple control points；Wherein benchmark point is located at the position directly above of reactor core datum mark；Multiple monitoring points are evenly distributed on the inside of workshop cylinder, and the top of design position is hung positioned at ring；Phase intercommunication video between benchmark point and multiple control points and between multiple control points itself.Ring using the present invention hangs control net, and not only can hang region to entire ring covers, but also the overlay area of each point is equal, to improve the precision of measurement and unwrapping wire.
Description
Technical field
The invention belongs to nuclear power station Construction Control fields, and in particular to a kind of nuclear power station ring hangs control net and its foundation
Method.
Background technology
Ring hang refer to used in nuclear power station belt bridge crane, be in Nuclear Power Station and operation phase, be reactor factory
Jumbo installation, maintenance and reactor refuling in room provide the heavy bridge crane of special type of handling service.
Wherein, it is the top position for being supported and fixed on reactor building inner barrel jointly by multiple brackets that ring, which is hung,.This
Sample needs to carry out the installation process that ring is hung accurate to ensure that ring is hung in the stability in later stage operational process and safety
Control, such as the monitoring to setting angle and installation position.If carrying out the measurement that ring hangs installation process by total powerstation merely
Monitoring does not simply fail to the precision for ensureing to measure then, but also may be due to the shadow of reactor building inner barrel other equipment
It rings and the measurement that entire ring is hung can not be covered, it is thus possible to the precision that ring hangs installation can be influenced.
Invention content
In order to solve to lift up into the measurement of row installation process to ring using total powerstation merely, it is understood that there may be measurement accuracy is low and surveys
Measure the small problem of range, the present invention proposes a kind of nuclear power station ring and hangs control net.The nuclear power station ring hangs control net, including a base
Position and multiple control points on schedule；Wherein, the benchmark point is located at reactor core datum mark top position, and with the reactor core base
It is located at same straight line on schedule；Multiple monitoring points are evenly distributed on the inside of workshop cylinder, and hang design position positioned at ring
Top；Between the benchmark point and multiple control points and phase intercommunication between multiple control points itself
Depending on.
Preferably, the control point is located at the top position of bracket.
Preferably, it includes five control points which, which hangs control net,.
A method of it establishing above-mentioned nuclear power station ring and hangs control net, include the following steps：
Step S1 establishes benchmark point；Reactor core datum mark is led to ring first to hang near design height position, is then determined
Reactor core datum mark position, determines benchmark point；
Step S2 establishes control point；Multiple supporting racks are uniformly arranged in the circumferential direction inside direction of workshop cylinder, are used for
Equipment is installed as control point, and ensures phase intercommunication video between control point；
Step S3, repetition measurement control point；All control points are measured successively on the basis of benchmark point, it is ensured that base
Phase intercommunication video is kept between position and all control points on schedule；
Step S4, control net detection；First, it is monitored the measurement of net field operation, 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 S1, plane where reactor core datum mark being led to the control point by nadir instrument.
Preferably, in the step S2, one end of support frame as described above is fixedly connected with workshop cylinder, and the other end is equipped with water
It is flat fixed to mid-game, for installing equipment.
It is further preferred that the center to mid-game is equipped with mounting hole, and all mounting hole positions to mid-game
In on same circumference.
Preferably, in the step S3 and the step S4, the repetition measurement of control point is carried out using total powerstation and prism
The detection netted with control, and prism levels are placed and are fixed.
It is further preferred that in the step S4, using wholecircle method of direction observation to benchmark point and control point according to
It is secondary to measure.
It is further preferred that in the step S4, each point carries out multiple survey time, and makes even to multiple survey time
, final angle-data and range data are obtained.
Nuclear power station ring using the present invention hangs control net, and the control net of installation is hung as nuclear power station middle ring, has with following
Beneficial effect：
1, in the control net of the present invention, by the radius size hung according to ring, workshop inner barrel along the circumferential direction
The control point for uniformly arranging quantity and position suitable, is arranged benchmark point above reactor core datum mark, is formed with benchmark point
Centered on positive side shape structure control net.At this point, the distance between benchmark point and each control point and angle holding are equal,
Each control point mutual distance and angle also keep equal, to make the observation coverage area phase of each control point
Deng.In this way, by a benchmark point and the mutually matched observation of multiple control points, to the measurement error in later stage and can put
Line precision is precisely controlled, and payingoff speed and observation quality are effectively improved, and then ensures that ring hangs the precision of installation.
2, during the present invention establishes control net, control point and benchmark point are established first,
Then detection point is detected with benchmark point, then carries out whole detection in benchmark point and control point, and right
The process of establishing of point is monitored in real time, to ensure to establish the correct of process, and then improves the standard of entire establishment of control net
True property and later stage use the stability of process.
Description of the drawings
Fig. 1 is the structural schematic diagram that nuclear power station ring hangs control net in the present invention；
Fig. 2 is the Establishing process schematic diagram that nuclear power station ring hangs control net in the present invention.
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. 1, nuclear power station ring of the invention hangs control net, including a benchmark point 1 and five control points.
Wherein, benchmark point 1 is located at the top position of reactor core datum mark, and is located in same vertical straight line with reactor core datum mark.Five
A control point is located at the top that ring hangs design position, and centered on benchmark point 1, is distributed in along clockwise direction in factory
The inside of room cylinder 3 is followed successively by the first control point 21, second control point 22, third control point the 23, the 4th controls point
24 and the 5th control point 25.
In the present embodiment, by benchmark point 1 and five control point positions in same level, and benchmark point 1
All it is phase intercommunication video between five control points and between five control points itself.It equally, can also be according to scene
Actual condition, the vertical directions distance between benchmark point 1 and five control points carry out opposite adjustment, meet point it
Between mutually in the case of observation angle range, keep phase intercommunication video.
Further, since the center of workshop cylinder 3 is equipped with pylon, it to be used for the lifting of 3 internal unit of workshop cylinder.Cause
This can carry out circumferencial direction to control point and turn to ensure benchmark point 1 and control the phase intercommunication video between point
It is dynamic, and will preferably control point and be chosen at the top position of bracket, in this way can using be previously-completed the bracket of installation as
The assistance platform of arrangement control point, improves the convenience to establishment of control net.Finally, in the present embodiment, by the first control
Point 21 is fixed on 12 ° of the band of position, and with 72 ° carry out successively along clockwise direction for spacing the second control point 22,
Third controls point the 23, the 4th and controls the arrangement that point 24 and the 5th controls point 25.In this way, can both ensure all control points
The observation covering of installation region and mutual intervisibility are hung in position to entire ring, and keep the lower section of each control point right
A bracket is answered, consequently facilitating the foundation of later stage control net.
Equally, in other embodiments, can also according to the quantity and installation site for the design size and bracket that ring is hung,
It chooses the control point of different number and is arranged in different positions.
In conjunction with shown in Fig. 1 and Fig. 2, to the present invention nuclear power station ring hang control net established the specific steps are：
Step S1 establishes benchmark point.Reactor core datum mark is led to ring first to hang near design height, then determines reactor core
Datum mark position determines benchmark point.
In the present embodiment, first, nadir is installed in the design height hung according to ring, the respective heights position on tower crane
Instrument, by nadir instrument centering reactor core datum mark.Then, it is with 0 °, 90 °, 180 ° and 270 ° four positions in workshop cylinder respectively
Datum axis is adjusted the center of nadir instrument, will lead to the height positioned at the reactor core datum mark of workshop cylinder body bottom
At position.Then, nadir instrument, installation total powerstation are removed, and is divided using 0 ° of workshop cylinder as datum axis using total powerstation
It is other that direction value measurement carried out to 90 °, 180 °, 270 ° of datum axis, and according to measurement result to the position of total powerstation again
It is adjusted, until the direction value deviation measured is ± 10 " within, to complete the foundation of benchmark point.
Step S2 establishes control point.In the inside of workshop cylinder 3 and benchmark point height close proximity, circumferentially
Direction is uniformly arranged five supporting racks, for installing total powerstation or prism, to as control point.Wherein, control is being determined
When the height and position of point, the height between benchmark point and control point may be adjusted, make control point and benchmark
The height of point is close or even equal, consequently facilitating the mutual observation between benchmark point and control point.In the present embodiment,
Five control points are arranged in 12 °, 84 °, 156 °, 228 ° and 300 ° five bands of position, to constitute regular pentagon
Five vertex.
In the present embodiment, supporting rack uses metallic rod shaped structure, and one end of supporting rack passes through weldering with workshop cylinder
It connects and is fixedly connected, the other end is equipped with horizontal fixed to mid-game.It is equipped with mounting hole in the center to mid-game, for whole station
Instrument carries out out being fixedly connected for detachable with prism.Meanwhile being placed in five on the same circumference to the mounting hole in mid-game, from
And keep the holding of the distance between each control point and benchmark point equal, improve progress line setting behaviour when hanging installation to ring
The convenience of work.
Step S3, repetition measurement control point.It is right on the basis of benchmark point after the foundation for completing control point and benchmark point
Each control point measures successively, it is ensured that phase intercommunication video is kept between benchmark point and all control points.
Wherein, in the present embodiment, after the foundation for completing benchmark point, total powerstation is mounted on benchmark point, simultaneously
All install prism at five measurement point positions, and by prismatic adjustment to horizontality.Then, total powerstation and prism are utilized
To benchmark point and control point between intervisibility relationship be detected, and according to testing result to control point position into
Row fine tuning, it is final to ensure that benchmark point is in phase intercommunication video state with all control points.
Step S4, control net detection.
First, it is monitored the measurement of net field operation, 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 wholecircle method of direction observation, 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 most
The angle-data and range data of the point eventually.It equally, in other embodiments, can also be as the case may be to each point
Position carries out the different survey time.
Wherein, when being observed to benchmark point, total powerstation is mounted on benchmark point, with 0 ° of benchmark of workshop cylinder
Line orients, and observes the first control point, the second control point, third control point, the 4th control point and the 5th control successively
Point, and the angle-data and range data of four survey time are recorded, angle-data to four survey time and apart from number
According to being averaging processing respectively, it is averaged the angle-data finally observed as benchmark point and range data.
When being observed to the first control point, total powerstation is mounted on the first control point, is oriented with benchmark point,
The second control of observation point, third control point, the 4th control point and the 5th control point successively, and to four survey time
Angle-data and range data are recorded, and the angle-data and range data distribution to four survey time are averaging processing, and take
Average value controls the angle-data and range data that point is finally observed as first.
Similarly, according to the observation procedure to the first control point, successively to the second control point, third control point, the
Four control points and the 5th control point are observed, and obtain angle-data and distance that Control point position is finally observed
Data.
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 control point is qualified.If
Defect of data is assessed, then is needed to be adjusted the point until qualified, it is on the contrary then indicate that the point is qualified.When all points
When 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 being monitored the measurement of net field operation, 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 ring hangs control net, which is characterized in that including a benchmark point and multiple control points；Wherein, institute
State the position directly above that benchmark point is located at reactor core datum mark；Multiple control points are evenly distributed on the interior of workshop cylinder
Portion, and it is located at the top that ring hangs design position；It is between the benchmark point and multiple control points and multiple described
Phase intercommunication video between control point itself.
2. nuclear power station ring according to claim 1 hangs control net, which is characterized in that the control point is located at the upper of bracket
It sets in orientation.
3. nuclear power station ring according to claim 1 hangs control net, which is characterized in that it includes described in five that the ring, which hangs control net,
Control point.
4. a kind of method established any one of claim 1-3 nuclear power station rings and hang control net, which is characterized in that including
Following steps：
Step S1 establishes benchmark point；Reactor core datum mark is led to ring first to hang near design height position, then determines reactor core
Datum mark position determines benchmark point；
Step S2 establishes control point；Multiple supporting racks are uniformly arranged in the circumferential direction inside direction of workshop cylinder, for installing
Equipment ensures phase intercommunication video between control point as control point；
Step S3, repetition measurement control point；All control points are measured successively on the basis of benchmark point, it is ensured that datum mark
Position and holding phase intercommunication video between all control points；
Step S4, control net detection；First, it is monitored the measurement of net field operation, 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.
5. nuclear power station ring according to claim 4 hangs the method for building up of control net, which is characterized in that in the step S1
In, plane where reactor core datum mark is led to the control point by nadir instrument.
6. nuclear power station ring according to claim 4 hangs the method for building up of control net, which is characterized in that in the step S2
In, one end of support frame as described above is fixedly connected with workshop cylinder, and the other end is fixed to mid-game equipped with level, is set for installing
It is standby.
7. nuclear power station ring according to claim 6 hangs the method for building up of control net, which is characterized in that described in mid-game
Heart position is equipped with mounting hole, and all mounting holes to mid-game are located on same circumference.
8. nuclear power station ring according to claim 4 hangs the method for building up of control net, which is characterized in that in the step S3 and
In the step S4, the detection of the repetition measurement and control net of control point is carried out using total powerstation and prism, and by prism levels
It places and fixes.
9. nuclear power station ring according to claim 8 hangs the method for building up of control net, which is characterized in that in the step S4
In, benchmark point and control point are measured successively using wholecircle method of direction observation.
10. nuclear power station ring according to claim 9 hangs the method for building up of control net, which is characterized in that in the step S4
In, each point carries out multiple survey time, and is averaged to multiple survey time, obtains final angle-data and range data.
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| CN111561918A (en) * | 2020-05-08 | 2020-08-21 | 中国核工业华兴建设有限公司 | Micro-grid monitoring method with circular structure |
| CN113761616A (en) * | 2021-07-23 | 2021-12-07 | 散裂中子源科学中心 | A three-dimensional adjustment method and device with distance constraints |
| CN118936432A (en) * | 2024-07-03 | 2024-11-12 | 中国核工业华兴建设有限公司 | A method for checking the installation and positioning of a ring-hanging corbel |
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| CN118936432A (en) * | 2024-07-03 | 2024-11-12 | 中国核工业华兴建设有限公司 | A method for checking the installation and positioning of a ring-hanging corbel |
| CN118936432B (en) * | 2024-07-03 | 2025-09-09 | 中国核工业华兴建设有限公司 | Method for installing, positioning and checking bracket of ring crane |
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Application publication date: 20180713 |