CN108507549A - The installation measurement method of graphite brick and carbon brick in high temperature gas cooled reactor heap - Google Patents
The installation measurement method of graphite brick and carbon brick in high temperature gas cooled reactor heap Download PDFInfo
- Publication number
- CN108507549A CN108507549A CN201810523137.3A CN201810523137A CN108507549A CN 108507549 A CN108507549 A CN 108507549A CN 201810523137 A CN201810523137 A CN 201810523137A CN 108507549 A CN108507549 A CN 108507549A
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- Prior art keywords
- brick
- installation
- measurement
- graphite
- laser tracker
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Classifications
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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
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
-
- 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
Abstract
The invention belongs to the installation Technology fields of nuclear power station reactor inner member.When in order to solve to carry out the DATA REASONING of installation process to graphite brick and carbon brick using existing method, there is a problem of that measurement efficiency is low with measurement accuracy difference, the invention discloses the installation measurement methods of graphite brick and carbon brick in a kind of high temperature gas cooled reactor heap.The installation measurement method, specifically includes following steps：Step S1 carries out the installation of laser tracker；Step S2 carries out the foundation of control net；Step S3 measures the height, levelness and flatness of every layer of every block of graphite brick and carbon brick upper surface using laser tracker in control is netted；Step S4 measures absorption ball road, control rod duct and the cold helium duct position degree on every layer of graphite brick；Step S5 to measurement data analyze and be adjusted the position of graphite brick and carbon brick.The DATA REASONING for carrying out installation process to graphite brick and carbon brick using the method for the present invention, can greatly improve measurement efficiency and measurement accuracy.
Description
Technical field
The invention belongs to the installation Technology fields of nuclear power station reactor inner member, and in particular to a kind of high temperature gas-cooled
The installation measurement method of graphite brick and carbon brick in heap heap.
Background technology
In-pile component is Nuclear Power Station center portion position, is the internal structure of the pressure vessel of nuclear reactor, to nuclear plant safety
Operation plays a crucial role.Wherein, graphite brick and carbon brick in-pile component belong to the exclusive in-pile component structure of nuclear power, respectively at two
Reactor cabin is installed, and each reactor cabin has 53 layers, and the complicated of it, required precision are high, it is therefore desirable in sky
Between the measurement of quantity of parameters, such as every layer of every block of graphite brick, the height of carbon brick upper surface, level are carried out in narrow installation space
The measurement of degree and flatness and the position degree survey in the absorption ball road on every layer of graphite brick, control rod duct, cold helium duct
Amount, to ensure the installation accuracy of graphite brick and carbon brick.
If the measurement of above-mentioned parameter is carried out using levelling rod and the matched conventional method of spirit level, first at every piece
The levelling rod that the upper surface of graphite brick and carbon brick carries out at least three points is placed, and by spirit level to the level of each point
Ruler is observed reading respectively, obtains height, the data of levelness and flatness of every block of graphite brick and carbon brick, then again by
Position degrees of data progress of other measuring apparatus to absorption ball road, control rod duct, cold helium duct on every layer of graphite brick
It measures.However, measuring apparatus conventional at present cannot be satisfied to the absorption ball road, control rod duct, cold on every layer of graphite brick
The precision that the position degree in helium duct measures, and in practical measurement process, it is especially flat in order to ensure measurement accuracy
Face degree parameter can generally choose five points and measure, thus to greatly increase the workload of measurement data, cause to measure
The reduction of efficiency, and error is also will produce during operating personnel are observed reading, shadow is caused to the precision of measurement
It rings.Further, since the levelling rod and measurement tripod that use all are rigidity material, therefore to stone during reciprocal carrying and installation
There is the risk for destruction of colliding in black brick and carbon brick.
Invention content
Data in order to solve to carry out graphite brick in high temperature gas cooled reactor heap and carbon brick using existing method installation process are surveyed
When amount, there is a problem of that measurement efficiency is low low with measurement accuracy, the present invention propose in a kind of high temperature gas cooled reactor heap graphite brick and
The installation measurement method of carbon brick.The installation measurement method, specifically includes following steps：
Step S1 carries out the installation of laser tracker；Company is fixed in the flange face of laser tracker and pressure vessel
It connects, and laser tracker is made to be extended in pressure vessel along the center position of pressure vessel；
Step S2 carries out the foundation of control net；First, the setting of a cycle basis on schedule is carried out in reactor core shell flange face inner circle；
Then, data acquisition is carried out to datum mark using laser tracker；Then, the data of acquisition are fitted and obtain reactor core shell process
Blue center；Finally, the data for acquiring the orientation quadrant hole on reactor core shell flange face are oriented, to complete building for control net
It is vertical；
Step S3 measures the height, levelness and flatness of every layer of every block of graphite brick and carbon brick upper surface, wherein
Three points are at least chosen in the upper surface of every block of graphite brick and carbon brick to measure；
Step S4 carries out absorption ball road, control rod duct and the position degree in cold helium duct on every layer of graphite brick
It measures；
Step S5 analyzes the measurement data of graphite brick and carbon brick, and is adjusted to the position of graphite brick and carbon brick
It is whole.
Preferably, in the step S1, installation fixation is carried out to laser tracker using measurement bay；The measurement bay is
Long rod shaped structure, one end are the flange face connection of fixing end and pressure vessel, and the other end is that installation end is tracked for fixed laser
Instrument, and installation end stretches into pressure vessel in the horizontal direction.
It is further preferred that using rotation connection between the fixing end of the measurement bay and the flange face of pressure vessel.
It is further preferred that being connected by shaft between the measurement bay and the flange face of pressure vessel；Wherein, the survey
The fixing end for measuring frame is equipped with vertically perforative through-hole, and the flange face of pressure vessel is equipped with the peace being vertically arranged
Hole is filled, the shaft inserts after passing through the through-hole into the mounting hole.
It is further preferred that being equipped with horizontally disposed lock-screw, and one end of lock-screw in fixing end
It stretches into the through-hole.
Preferably, the installation end of the measurement bay is equipped with flange hole, is used for fixed laser tracker.
Preferably, the measurement bay uses hollow rectangular parallelepiped structure.
Preferably, in the step S3, five points are chosen in the upper surface of every block of graphite brick and carbon brick to measure,
Four angle points and central point of respectively every piece brick.
Preferably, in the step S3, the DATA REASONING of multiple points is carried out to the inside in each duct by target ball.
Preferably, in the step S2, after the foundation for completing control net, the data for establishing control net are transferred to station
On seat；Wherein, entire graphite brick and carbon brick in-pile component to be measured will be surrounded by turning the laying range of station seat.
Method using the present invention measures the installation of graphite brick and carbon brick in high temperature gas cooled reactor heap, has with following
Beneficial effect：
1, in the present invention, by laser tracker being arranged, in reactor core shell flange face inner circle in the flange face of pressure vessel
Datum mark is set, using laser tracker to the measurement of datum mark and the orientation in reactor core shell flange face upper position quadrant hole, from
And the foundation of control net is completed, and then graphite brick in cabin and carbon brick are carried out quickly in the control net using laser tracker
It measures, directly measures the height, levelness and the plane degrees of data that obtain every layer of every block of graphite brick and carbon brick upper surface and every layer
The position degree that ball road, control rod duct and cold helium duct are absorbed on graphite brick, finally directly according to measurement data to graphite
The position of brick and carbon brick is adjusted, and completes the installation to graphite brick and carbon brick.In the process, it not only eliminates to levelling rod
Use with spirit level also solves position degree conventional measuring device and cannot be satisfied required precision method, simplifies the complexity of operation
Degree, improves operating efficiency, while avoiding in the process may be caused by graphite brick and carbon brick using levelling rod and spirit level
It destroys, improves the protection to graphite brick and carbon brick, and the direct acquisition by laser tracker to data, eliminate artificial
The error for reading data, substantially increases the precision of measurement.
2, in the present invention, laser tracker is fixed on pressure container flange face by using cantilevered measurement bay and prolonged
It extends in pressure vessel, the angle of depression of entire graphite brick and carbon brick in-pile component to be measured is measured to form laser tracker,
Visibility of the laser tracker to graphite brick and carbon brick is improved, ensures the precision and efficiency that measure.
3, in the present invention, by being designed as the flange face of measurement bay and pressure vessel to horizontally rotate connection, so as to
It is adjusted flexibly with the spatial position to laser tracker.In this way, can both meet in measurement process to laser tracker
Spatial position requires, and ensures measurement accuracy of the laser tracker to graphite brick and carbon brick, while can be in the lifting of in-pile component
In the process, laser tracker is horizontally rotated temporarily, to avoid the influence to hoisting process, ensure lifting it is normal into
Row, while realizing the protection to laser tracker.
Description of the drawings
Fig. 1 is that installation measurement method using the present invention illustrates the flow that the installation of graphite brick and carbon brick measures
Figure；
Fig. 2 is partial exploded view when measurement bay is connect with pressure vessel in the present invention.
Specific implementation mode
Technical scheme of the present invention is described further with reference to the accompanying drawings and examples.
In conjunction with shown in Fig. 1, peace of the installation measurement method using the present invention to graphite brick and carbon brick in high temperature gas cooled reactor heap
Fill measure the specific steps are：
Step S1 carries out the installation of laser tracker.Company is fixed in the flange face of laser tracker and pressure vessel
It connects, and laser tracker is made to be extended in pressure vessel along the center position for being directed toward pressure vessel, to form laser tracking
Instrument measures the angle of depression of all graphite bricks and carbon brick in reactor room room.
In conjunction with shown in Fig. 2, in the present embodiment, installation fixation is carried out to laser tracker 2 by measurement bay 1.Wherein, it surveys
Amount frame 1 is long rod shaped structure, and one end is connect as fixing end with the flange face of pressure vessel 3, and the other end is used for as installation end
Installation and fixed laser tracker 2, and installation end stretches into the inside of pressure vessel 3 in the horizontal direction, forms cantilever beam structure.
At this point, laser tracker support to be erected to the top of pressure vessel by adjusting measurement bay, so as to form to being located at lower section
Measurement items keep angle of depression measuring state.
Preferably, using rotation connection between measurement bay 1 and the flange face of pressure vessel 3, in order to be tracked to laser
The spatial position of instrument 2 is adjusted.In the present embodiment, it is formed by the connection of shaft 4 between measurement bay 1 and pressure vessel 3
Rotation in horizontal plane.Wherein, it is equipped with vertically perforative through-hole 11 in the fixing end of measurement bay 1, while held in pressure
The flange face of device 3 is equipped with the mounting hole 31 being vertically arranged, and the lower end of shaft 4 passes through inserting extremely peace after through-hole 11 at this time
It fills in hole 31, to complete to horizontally rotate connection between measurement bay 1 and pressure vessel 3.In this way, carrying out hanging for in-pile component
During dress, you can the rotational translation in horizontal plane is carried out to laser tracker by rotation measuring frame, to avoid to lifting
Influence, ensure being smoothed out for lifting operation, while improving protection to laser tracker.
It is further preferred that the fixing end in measurement bay 1 is additionally provided with a lock-screw 5.Lock-screw 5 is in the horizontal direction
Setting, and front end is extended to through the hole wall of through-hole 11 in through-hole 11, to which countershaft 4 and measurement bay 1 carry out relative position pass
System is locked.
Meanwhile being equipped with multiple along the circumferential direction uniformly distributed flange holes 12, and flange hole 12 in the installation end of measurement bay 1
Distributing position is corresponding with the mounting flange of laser tracker 2.In this way, by flange hole 12 can be completed laser tracker 2 with
Being connected and fixed between measurement bay 1.
In addition, in the present embodiment, measurement bay 1 uses hollow rectangular parallelepiped structure, and is welded by multiple steel plate assembly
It forms.In this way, can not only mitigate the weight of entire measurement bay, personnel easy to operation carry out it rotation of horizontal direction, and
And the flexural strength of entire measurement bay can be improved, ensure to support fixed stability to laser tracker.
Step S2 carries out the foundation of control net.First, the setting of a cycle basis on schedule is carried out in reactor core shell flange face inner circle；
Then, data acquisition is carried out to datum mark using laser tracker；Then, the data of acquisition are fitted and obtain reactor core shell process
Blue center；Finally, the data for acquiring the orientation quadrant hole on reactor core shell flange face are oriented, to complete building for control net
It is vertical.
Wherein, in the present embodiment, being evenly distributed with for eight datum marks, i.e. adjacent reference have been carried out along reactor core shell flange face inner circle
Angle is 45 ° between point, to meet the precision measured bench mark data, and then ensures the precision of establishment of control net.Equally,
It in other embodiments, can also be according to the adjustment of the circumferential size progress datum mark quantity for arranging datum mark, to obtain
Obtain the matching of DATA REASONING efficiency and data measurement accuracy most preferably.
In addition, in the present invention, being fitted and being obtained in reactor core shell process orchid by the actual measurement data to datum mark
The heart to carry out the foundation of control net with the orientation quadrant hole in reactor core shell flange center and reactor core shell flange face, and then utilizes
Control net measures the related data of graphite brick and carbon brick, ensures final black brick and carbon brick and reactor core shell flange center and heap
The required precision of position relationship between core shell flange face.
In addition, in the present embodiment, after completing the foundation to control net, the data for establishing control net are transferred to station
On seat, when in order to subsequently be reused to the data for establishing control net, use can be directly transferred, saves and carries out data again
The operation of acquisition is measured, operating efficiency is improved.Wherein, it is desirable that turn station seat layings range can to entire graphite brick to be measured with
Carbon brick in-pile component is surrounded, to control within the allowable range measurement error, when preventing laying range from expanding or is random
The new error generated.
Step S3 measures the height, levelness and flatness of every layer of every block of graphite brick and carbon brick upper surface.Its
In, it at least chooses three points in the upper surface of every block of graphite brick and carbon brick and measures, the measurement of flatness is wanted with meeting
It asks.
Preferably, in the present embodiment, five points are chosen respectively in the upper surface of every block of graphite brick and carbon brick to be surveyed
Amount, and five points are respectively four angle points and central point of every piece of brick, to realize the area of effective coverage to brick face, to
Reach the matching to every block of graphite brick and carbon brick measurement accuracy and measurement efficiency.
Step S4 carries out absorption ball road, control rod duct and the position degree in cold helium duct on every layer of graphite brick
It measures.
Preferably, the DATA REASONING of multiple points is carried out to the inside in each duct by target ball.In the present embodiment, lead to
It crosses uniformly distributed six points in inside in each duct and carries out DATA REASONING, to ensure the precision measured each duct.Wherein,
30 cold helium ducts, 6 absorption ball roads and 24 control rod ducts are equipped on every layer of graphite brick, in this way in each duct
When inside acquires 6 point data using target ball, every layer measures 360 data in total, and each DATA REASONING time be about 5~
8 seconds, so probably needing to can be completed for 40 minutes or so to absorb ball road, control rod duct and cold helium duct in one layer
Position measurement.
Step S5 analyzes the measurement data of graphite brick and carbon brick according to the installation requirement of graphite brick and carbon brick, and
The position of graphite brick and carbon brick is adjusted according to the analysis result of data, the installation to meet graphite brick and carbon brick is wanted
It asks.
According to live actual count, in each layer in the case of a total of 60 blocks of graphite bricks and carbon brick, 5 points are selected
When measuring every piece of brick, need to measure 300 data in total in each layer.At this point, when using the prior art pass through by
When levelling rod and spirit level are observed reading to each point, then each DATA REASONING time is about at 1 minute or so, in this way
Need 5 hours that could complete the measurement to height, levelness and plane degrees of data in every layer；And side using the present invention
Method, the time of measuring only about 5~8 seconds in control is netted using laser tracker to each data, so as to 30
Or so minute completes a layer height, the DATA REASONING of levelness and flatness is improved to measure and be imitated to greatly shorten the measurement used time
Rate.
Claims (10)
1. the installation measurement method of graphite brick and carbon brick in a kind of high temperature gas cooled reactor heap, which is characterized in that include the following steps：
Step S1 carries out the installation of laser tracker；The flange face of laser tracker and pressure vessel is fixedly connected, and
And laser tracker is made to be extended in pressure vessel along the center position of pressure vessel；
Step S2 carries out the foundation of control net；First, the setting of a cycle basis on schedule is carried out in reactor core shell flange face inner circle；Then,
Data acquisition is carried out to datum mark using laser tracker；Then, the data of acquisition are fitted and are obtained in reactor core shell process orchid
The heart；Finally, the data for acquiring the orientation quadrant hole on reactor core shell flange face are oriented, to complete the foundation of control net；
Step S3 measures the height, levelness and flatness of every layer of every block of graphite brick and carbon brick upper surface, wherein every
It at least chooses three points and measures in the upper surface of block graphite brick and carbon brick；
Step S4 measures absorption ball road, control rod duct and the position degree in cold helium duct on every layer of graphite brick；
Step S5 analyzes the measurement data of graphite brick and carbon brick, and is adjusted to the position of graphite brick and carbon brick.
2. installation measurement method according to claim 1, which is characterized in that in the step S1, using measurement bay pair
Laser tracker carries out installation fixation；The measurement bay is long rod shaped structure, and one end is the flange face of fixing end and pressure vessel
Connection, the other end are that installation end is used for fixed laser tracker, and installation end stretches into pressure vessel in the horizontal direction.
3. installation measurement method according to claim 2, which is characterized in that the fixing end and pressure vessel of the measurement bay
Flange face between using rotation connection.
4. installation measurement method according to claim 3, which is characterized in that the flange face of the measurement bay and pressure vessel
Between connected by shaft；Wherein, the fixing end of the measurement bay is equipped with vertically perforative through-hole, the method for pressure vessel
Blue face is equipped with the mounting hole being vertically arranged, and the shaft inserts after passing through the through-hole into the mounting hole.
5. installation measurement method according to claim 4, which is characterized in that be equipped in fixing end horizontally disposed
Lock-screw, and one end of lock-screw is stretched into the through-hole.
6. installation measurement method according to claim 2, which is characterized in that the installation end of the measurement bay is equipped with flange
Hole is used for fixed laser tracker.
7. the installation measurement method according to any one of claim 2-6, which is characterized in that the measurement bay is using empty
The rectangular parallelepiped structure of the heart.
8. installation measurement method according to claim 1, which is characterized in that in the step S3, in every block of graphite brick
Five points are chosen with the upper surface of carbon brick to measure, four angle points and central point of respectively every piece brick.
9. installation measurement method according to claim 1, which is characterized in that in the step S3, by target ball to every
The inside in a duct carries out the DATA REASONING of multiple points.
10. installation measurement method according to claim 1, which is characterized in that in the step S2, complete control net
After foundation, the data for establishing control net are transferred on the seat of station；Wherein, the laying range for turning station seat will be to entire stone to be measured
Black brick and carbon brick in-pile component are surrounded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523137.3A CN108507549B (en) | 2018-05-28 | 2018-05-28 | Method for installing and measuring graphite bricks and carbon bricks in high-temperature gas cooled reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523137.3A CN108507549B (en) | 2018-05-28 | 2018-05-28 | Method for installing and measuring graphite bricks and carbon bricks in high-temperature gas cooled reactor |
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| CN108507549A true CN108507549A (en) | 2018-09-07 |
| CN108507549B CN108507549B (en) | 2020-07-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112820430A (en) * | 2019-11-18 | 2021-05-18 | 中国核工业二三建设有限公司 | Method for installing and constructing high-temperature gas cooled reactor graphite and carbon reactor internal member and installing trolley |
| CN114220566A (en) * | 2021-10-29 | 2022-03-22 | 华能核能技术研究院有限公司 | Method for plugging narrow gap in reactor pressure vessel of nuclear power station |
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| CN108507549B (en) | 2020-07-28 |
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