CN109520475A - Horizontal degree measurement calculation method in a kind of in-pile component installation process - Google Patents

Horizontal degree measurement calculation method in a kind of in-pile component installation process Download PDF

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Publication number
CN109520475A
CN109520475A CN201811635774.6A CN201811635774A CN109520475A CN 109520475 A CN109520475 A CN 109520475A CN 201811635774 A CN201811635774 A CN 201811635774A CN 109520475 A CN109520475 A CN 109520475A
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point
pile component
measurement
absolute altitude
elevation
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CN201811635774.6A
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CN109520475B (en
Inventor
林宝明
王进
刘元庆
李松
李雨航
杨哲宇
卢谋芝
王绍堂
赵若愚
刘佳冰
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China General Nuclear Power Corp
CGN Power Co Ltd
Yangjiang Nuclear Power Co Ltd
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China General Nuclear Power Corp
CGN Power Co Ltd
Yangjiang Nuclear Power Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels

Abstract

Horizontal degree measurement calculation method in a kind of in-pile component installation process, the following steps are included: S1, arranges level: adjusting level, determine a hypothesis elevational point in reactor pit, assuming that being laid with levelling rod on elevational point, is read by levelling rod and assume elevational point absolute altitude;S2 measures the absolute altitude of in-pile component: taking 3 measurement points every 120 ° respectively on the excircle of in-pile component lower end disk, or takes 4 measurement points every 90 ° respectively, the absolute altitude numerical value of each measuring point is read by levelling rod;S3, calibration: using level repetition measurement to assume elevational point after the completion of in-pile component level measurement, measurement assumes that elevational point absolute altitude reading is consistent with the measured value in step S1, then this in-pile component measurement point elevation data is effective;S4 calculates in-pile component levelness: according to the elevation data of S3 3 or 4 points measured, calculating levelness under in-pile component.The levelness that the present invention solution prior art is measured technical problem less than normal.

Description

Horizontal degree measurement calculation method in a kind of in-pile component installation process
Technical field
The present invention relates to the fields of measurement of the levelness of in-pile component and same category of device, and in particular to a kind of in-pile component peace Horizontal degree measurement calculation method during dress.
Background technique
Reactor core internals Level-adjusting precision directly affects subsequent in-pile component and hangs in the safety hung out, therefore It is particularly significant.With reference to in-pile component mounting and adjusting program " installation and adjustment on top, lower part in-pile component ", pacify in in-pile component It is repeatedly required to in-pile component horizontal degree measurement during adjustment is whole.
1, it when lower part in-pile component is located on storage rack, checks and adjusts core support plate's lower surface levelness;
2, core support plate lower surface levelness is directly measured when lower part in-pile component is suspended under in-pile component suspender, is adjusted Whole levelness should be within 1.5mm;
3, when upper-part in-reactor component is located on storage rack, its upper flange levelness is checked;
4, upper-part in-reactor component is packed into pressure vessel for the first time, measures levelness in the state of lifting;
5, it when subsequent upper-part in-reactor component is lifted by crane, whenever equipment state change (installing or remove component), just answers Lifting levelness is measured, and before cold examination and after cold examination, data are submitted into the assessment of design side by several times, when reporting and submitting, should be said Bright equipment state;
6, in-pile component suspender is connect with lower part in-pile component, lower part in-pile component is hung out from pressure vessel, and put It sets equipped on the storage rack for increasing bearing support, bearing support surface levelness is increased by control to control core support plate's following table Within the levelness of face;Illustrate: the unit of normal levelness should be mm/m, but in program as unit of mm, Wo Menmo " levelness " meaning recognized in program is that the maximum height in core support plate lower surface or the measurement of component flange face each point is inclined Difference.
Summary of the invention
The object of the present invention is to provide horizontal degree measurement calculation methods in a kind of in-pile component installation process, to solve existing The levelness that technology is measured technical problem less than normal.
The technical solution adopted by the present invention to solve the technical problems is:
Horizontal degree measurement calculation method in a kind of in-pile component installation process, which comprises the following steps:
S1 arranges level: adjusting level, determines a hypothesis elevational point in reactor pit, the hypothesis is high It is laid with levelling rod on journey point, is read by levelling rod and assumes elevational point absolute altitude;
S2 measures the absolute altitude of in-pile component: taking 3 surveys every 120 ° respectively on the excircle of in-pile component lower end disk Point, respectively H, X and Y are measured, or takes 4 measurement points, respectively H ', X ', Y ' and Z ' every 90 ° respectively, is read by levelling rod The absolute altitude numerical value of each measuring point;
S3, calibration: using level repetition measurement to assume elevational point after the completion of in-pile component level measurement, elevational point is assumed in measurement Absolute altitude reading is consistent with the measured value in step S1, then this in-pile component measurement point elevation data is effective;
S4 calculates in-pile component levelness: according to the elevation data of S3 3 or 4 points measured, calculating in heap Levelness under component.
It is further preferred that in step S2, when measuring 3 elevation datas, it is assumed that the absolute altitude number of 3 measurement points H, X and Y According to respectively h, x, y, and h >=x >=y, it is assumed that A point is the highest point of entire excircle, and absolute altitude value is a, and B point is entire excircle Minimum point, absolute altitude value is b, then A and B line must cross the center of circle, and CY, HD were the line in the center of circle, A must between segmental arc H, C, B must be between segmental arc D, Y, if the angle of AB and HY is α, and α is divided into positive and negative, is positive, is negative clockwise counterclockwise.
Further, A, B elevation difference are calculated with the following method.For an inclined surface, in plane any two Point, elevation difference is directly proportional to projection of this two o'clock on the direction AB, this coefficient is set as k, elevation difference calculation between A, B It is as follows:
Assuming that excircle radius are as follows: R, line segment AB length are 2R, and straight line HY, XY length is
If A, B elevation difference a-b=2Rk
Then h, y elevation difference
X, y elevation difference
H-2x+y=3Rksin α
Due to
In addition, in step S2, when measuring 4 elevation datas, it is assumed that the elevation data of 4 measurement point H ', X ', Y ' and Z ' Respectively h ', x ', y ' and z ', it is assumed that A ' highest points for whole circumference face, this absolute altitude value are a ', and B ' are whole circumference The minimum point in face, this absolute altitude value are b ', and A ' B ' line must cross the center of circle, and the angle of straight line A ' B ' and straight line Y ' H ' is α ', mistake 4 points of H ', X ', Y ' and Z ' vertical lines for being A ' B ' respectively, enable 0 °≤α '≤45 °, it is known that 4 points of absolute altitude value relationship are as follows: h ' >=x ' ≥z′≥y′。
It is further preferred that calculate and B ' elevation differences with the following method at A ', the elevation difference and A ', B ' two o'clock of A ', B ' Projection of the straight line being linked to be in A ' B ' is directly proportional, if proportionality coefficient is k, A ', B ' elevation difference calculation are as follows:
Excircle radius is R, and line segment A ' B ' length is 2R
A ', B ' elevation difference a '-b '=2Rk
H ', y ' elevation difference h '-y '=2Rcos α ' k (1)
X ', z ' elevation difference x '-z '=2Rsin α ' k (2)
It can be obtained by formula (1) and (2):
Simultaneously
So
Implement the present invention can achieve it is following the utility model has the advantages that
Horizontal degree measurement calculation method compares conventional method in a kind of in-pile component installation process of the present invention, survey calculation As a result accurate
Detailed description of the invention
Fig. 1 is the position relationship structural diagram of level, reactor pit and in-pile component that this hair is related to;
Fig. 2 is the structural schematic diagram of the third quantile of in-pile component lower end of the present invention excircle;
Fig. 3 is the structural schematic diagram in the in-pile component lower end excircle quartering of the present invention site.
The drawing reference numeral of specific embodiment illustrates:
1- reactor pit;2- elevational point;3- levelling rod;4- in-pile component;6- level.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail A specific embodiment of the invention.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
Horizontal degree measurement calculation method in a kind of in-pile component installation process, comprising the following steps:
S1 arranges level: adjusting level 6, determines a hypothesis elevational point 2 in reactor pit 1, it is assumed that elevation It is laid with levelling rod 3 on point 2, is read by levelling rod 3 and assumes 2 absolute altitude of elevational point;
S2 measures the absolute altitude of in-pile component 4: taking 3 every 120 ° respectively on the excircle of 4 lower end disk of in-pile component Measurement point, respectively H, X and Y, or 4 measurement points, respectively H ', X ', Y ' and Z ' are taken every 90 ° respectively, it is read by levelling rod 3 The absolute altitude numerical value of each measuring point out;
In step S2, when measuring 3 elevation datas, it is assumed that the elevation data of 3 measurement points H, X and Y be respectively h, x, Y, and h >=x >=y, it is assumed that A point is the highest point of entire excircle, and absolute altitude value is a, and B point is the minimum point of entire excircle, mark High level is b, then A and B line must cross the center of circle, and CY, HD were the line in the center of circle, A must between segmental arc H, C, B must in segmental arc D, Between Y, if the angle of AB and HY is α, α is divided into positive and negative, is positive, is negative clockwise counterclockwise;A, B are calculated with the following method Elevation difference is for an inclined surface, any two points in plane, elevation difference and this two o'clock projecting into just on the direction AB Than this coefficient being set as k, elevation difference calculation is as follows between A, B:
Assuming that excircle radius are as follows: R, line segment AB length are 2R, and straight line HY, XY length is
If A, B elevation difference a-b=2Rk
Then h, y elevation difference
X, y elevation difference
H-2x+y=3Rksin α
Due to
In step S2, when measuring 4 elevation datas, it is assumed that the elevation data difference of 4 measurement point H ', X ', Y ' and Z ' For h ', x ', y ' and z ', it is assumed that A ' highest points for whole circumference face, this absolute altitude value are a ', and B ' are whole circumference face Minimum point, this absolute altitude value are b ', and A ' B ' line must cross the center of circle, and the angle of straight line A ' B ' and straight line Y ' H ' is α ', H ' excessively, 4 points of X ', Y ' and Z ' vertical lines for being A ' B ' respectively, enable 0 °≤α '≤45 °, it is known that 4 points of absolute altitude value relationship are as follows: h ' >=x ' >=z ' ≥y′。
Calculate and B ' elevation differences with the following method at A ', the straight line that the elevation difference and A ', B ' two o'clock of A ', B ' are linked to be exists The projection of A ' B ' is directly proportional, if proportionality coefficient is k, A ', B ' elevation difference calculation are as follows:
Excircle radius is R, and line segment A ' B ' length is 2R
A ', B ' elevation difference a '-b '=2Rk
H ', y ' elevation difference h '-y '=2Rcos α ' k (1)
X ', z ' elevation difference x ' z '=2Rsin α ' k (2)
It can be obtained by formula (1) and (2):
Simultaneously
So
S3, calibration: using 6 repetition measurement of level to assume elevational point 2 after the completion of 4 level measurement of in-pile component, measurement is assumed high 2 absolute altitude of journey point reading is consistent with the measured value in step S1, then this 4 measurement point elevation data of in-pile component is effective;
S4 calculates in-pile component levelness: according to the elevation data of S3 3 or 4 points measured, calculating in heap Levelness under component.
Traditional measurement method are as follows:
According to the height measurements for being spaced 120 ° of uniformly distributed 3 points in circumference, if h >=x >=y, then using h-y value as " water Pingdu ";
It is calculated separately pair according to the height measurements for being spaced 90 ° of uniformly distributed four points in circumference if h ' >=x ' >=y ' >=z ' Angle point absolute altitude difference h '-y ', x '-z ', if (h '-y ') > (x '-z '), using h '-y ' as " levelness ";
By being spaced the height measurements h of 120 ° of uniformly distributed three points, the maximum absolute altitude deviation that x, y are calculated in circumference Are as follows:
Meet a-b=h-y, then (a-b)2=(h-y)2
Because of (h-y)2>=0, (h-2x+y)2≥0
So h-y=0, h-2x+y=0
Because of h >=x >=y
So h=x=y
I.e. only when h=x=y is that h-y is just equal to a-b, other situations h-y is less than a-b.
By being spaced the height measurements h, x ', y ' of 90 ° of uniformly distributed four points, the maximum absolute altitude that z ' is calculated in circumference Deviation are as follows:
Meet a '-b '=h '-y ', then x '-z '=0.
That is a '-b '=h '-y ' when x '=z ', remaining situation h '-y ' are less than a '-b '.
Compared with traditional calculations measurement method, measurement method of the present invention is more accurate.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form, all of these belong to the protection of the present invention.

Claims (5)

1. horizontal degree measurement calculation method in a kind of in-pile component installation process, which comprises the following steps:
S1 arranges level: adjusting level (6), determine a hypothesis elevational point (2), the vacation in reactor pit (1) If being laid with levelling rod (3) on elevational point (2), is read by levelling rod (3) and assume elevational point (2) absolute altitude;
S2 measures the absolute altitude of in-pile component (4): taking 3 every 120 ° respectively on the excircle of in-pile component (4) lower end disk Measurement point, respectively H, X and Y, or 4 measurement points are taken every 90 ° respectively, respectively H ', X ', Y ' and Z ' pass through levelling rod (3) Read the absolute altitude numerical value of each measuring point;
S3, calibration: using level (6) repetition measurement to assume elevational point (2) after the completion of in-pile component (4) level measurement, measurement is assumed Elevational point (2) absolute altitude reading is consistent with the measured value in step S1, then this in-pile component (4) measurement point elevation data is effective;
S4 calculates in-pile component levelness: according to the elevation data of S3 3 or 4 points measured, calculating in-pile component Lower levelness.
2. horizontal degree measurement calculation method in a kind of in-pile component installation process as described in claim 1, it is characterised in that: step In S2, when measuring 3 elevation datas, it is assumed that the elevation data of 3 measurement points H, X and Y are respectively h, x, y, and h >=x >=y, Assuming that A point be entire excircle highest point, absolute altitude value be a, B point be entire excircle minimum point, absolute altitude value be b, then A with B line must cross the center of circle, and CY, HD were the line in the center of circle, A must between segmental arc H, C, B must between segmental arc D, Y, if AB with The angle of HY is α, and α is divided into positive and negative, is positive, is negative clockwise counterclockwise.
3. horizontal degree measurement calculation method in a kind of in-pile component installation process as claimed in claim 2, it is characterised in that: use Following method calculates A, B elevation difference.For an inclined surface, any two points in plane, elevation difference and this two o'clock are in AB Projection on direction is directly proportional, this coefficient is set as k, elevation difference calculation is as follows between A, B:
If excircle radius are as follows: R, line segment AB length are 2R, and straight line HY, XY length is
If A, B elevation difference a-b=2Rk
Then h, y elevation difference
X, y elevation difference
H-2x+y=3Rksina
Due to
4. horizontal degree measurement calculation method in a kind of in-pile component installation process as described in claim 1, it is characterised in that: step In S2, when measuring 4 elevation datas, it is assumed that 4 measurement point H ', X ', Y ' and Z ' elevation data be respectively h ', x ', y ' and Z ', it is assumed that A ' point is the highest point in whole circumference face, this absolute altitude value is a ', and B ' point is the minimum point in whole circumference face, the point Absolute altitude value is b ', and A ' B ' line must cross the center of circle, and the angle of straight line A ' B ' and straight line Y ' H ' are α ', mistake H ', X ', Y ' and 4 points of Z ' The vertical line for being A ' B ' respectively enables 0 °≤α '≤45 °, it is known that 4 points of absolute altitude value relationship are as follows: h ' >=x ' >=z ' >=y '.
5. horizontal degree measurement calculation method in a kind of in-pile component installation process as claimed in claim 4, it is characterised in that: use Following method calculates A ' point and B ' puts elevation difference, A ', B ' straight line the projecting into A ' B ' that is linked to be with A ', B ' two o'clock of elevation difference Direct ratio, if proportionality coefficient is that k, A ', B ' elevation difference calculation are as follows:
Excircle radius is R, and line segment A ' B ' length is 2R
A ', B ' elevation difference a '-b '=2Rk
H ', y ' elevation difference h '-y '=2Rcos α ' k (1)
X ', z ' elevation difference x '-z '=2Rsin α ' k (2)
It can be obtained by formula (1) and (2):
Simultaneously
So
CN201811635774.6A 2018-12-29 2018-12-29 Levelness measuring and calculating method in reactor internals installation process Active CN109520475B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09166434A (en) * 1995-12-18 1997-06-24 Nishi Nippon Denki Syst Kk Level surveying instrument
CN202648655U (en) * 2012-07-12 2013-01-02 湘电风能有限公司 Wind generating set foundation ring levelness measurement device
CN104034307A (en) * 2014-06-27 2014-09-10 天津二十冶建设有限公司 Rapid levelness aligning method for large-size equipment
CN205333053U (en) * 2016-01-09 2016-06-22 长安大学 Automatic right formula surveyor's level measurment scale
CN205940544U (en) * 2016-06-30 2017-02-08 中国电建集团中南勘测设计研究院有限公司 Levelling rod and foundation ring levelness measurement system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09166434A (en) * 1995-12-18 1997-06-24 Nishi Nippon Denki Syst Kk Level surveying instrument
CN202648655U (en) * 2012-07-12 2013-01-02 湘电风能有限公司 Wind generating set foundation ring levelness measurement device
CN104034307A (en) * 2014-06-27 2014-09-10 天津二十冶建设有限公司 Rapid levelness aligning method for large-size equipment
CN205333053U (en) * 2016-01-09 2016-06-22 长安大学 Automatic right formula surveyor's level measurment scale
CN205940544U (en) * 2016-06-30 2017-02-08 中国电建集团中南勘测设计研究院有限公司 Levelling rod and foundation ring levelness measurement system

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