CN203489852U - Special positioning device for inclined pipe cover plate positioning detection - Google Patents
Special positioning device for inclined pipe cover plate positioning detection Download PDFInfo
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- CN203489852U CN203489852U CN201320599497.4U CN201320599497U CN203489852U CN 203489852 U CN203489852 U CN 203489852U CN 201320599497 U CN201320599497 U CN 201320599497U CN 203489852 U CN203489852 U CN 203489852U
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- cover plate
- positioning device
- detection
- prestressed pipe
- prism
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Abstract
The utility model relates to a special positioning device for inclined pipe cover plate positioning detection, and belongs to the technical field of nuclear power station construction. The special positioning device comprises a pedestal plate, a pedestal sleeve whose external diameter is matched with the internal diameter of a prestressed pipe extends from the lower surface of the pedestal plate, a fixed length prism support bar which is coaxial with the pedestal sleeve extends from the upper surface of the pedestal plate, and the upper end of the prism support bar is provided with a positioning recess matched with a prism jack. By employing the special positioning device, the difficulty for the inclined tube cover plate positioning detection is overcame, accurate detection results providing the basis for the adjustment of an actual position of a prestressed pipe cover plate can be achieved, the special positioning device can be flexibly arranged, the detection is convenient, and space of other construction processes is not occupied, thereby contributing to meeting requirements of construction progress optimization.
Description
Technical field
The utility model relates to a kind of detection and localization dedicated positioning device of inclined tube cover plate, belongs to nuclear power station technical field of construction.
Background technology
The annular gallery L circumference of reactor building is set up the nearly prestressed pipe G spaced apart of 144, and each prestressed pipe is with annular gallery Ding He precalculated position, pre-determined tilt angle radially fixing on the cover board (cover plate bottom center overlaps with prestressed pipe export center).When prestressed pipe cover plate is placed on gallery, there is higher positioning accuracy request (referring to Fig. 1).Prestressed pipe and reactor building center, on a vertical plane, because prestressed pipe and the prestressed pipe cover plate plane perpendicular line by center becomes 7.83 ° of angles suitable for reading outward-dipping, need guarantee its accurate installation position by detection.For a long time, the detection and localization of nuclear power plant reactor factory building gallery prestressed pipe cover plate adopts total powerstation and the ceiling hammer that is erected at gallery center (center of circle).Affected by construction speed, be usually difficult to carry out in time, and time-consuming.
How could effectively utilize work space, not to be subject to other construction speed to affect, guarantee that other operation can parallelly make progress, precise and high efficiency completes prestressed pipe cover plate detection and localization becomes a difficult problem in engineering.
Summary of the invention
The purpose of this utility model is: for an above-mentioned engineering construction difficult problem, propose a kind of for realizing the dedicated positioning device of inclined tube cover plate position finding and detection method representative basis, thereby can At any points, precise and high efficiency is surveyed the inclined tube cover plate positional parameter of setting bit data.
In order to reach above object, inclined tube cover plate detection and localization dedicated positioning device of the present utility model contains bedplate, the lower surface of described bedplate extends the base sleeve that external diameter and prestressed pipe internal diameter match, the upper surface of described bedplate extends the fixed length prism support bar coaxial with base sleeve, and the upper end of described prism support bar has the location depression matching with prism jack.
Further, the upper end of described prism support bar has circular orientation depression.
Further again, the top of described prism support bar has chamfering.
On this basis, inclined tube cover plate position finding and detection method carries out according to the following steps:
The first step, making are axially fixed in prism the dedicated positioning device of prestressed pipe top along prestressed pipe; Second step, with X
the center of circle, Y
the center of circlefor the annular gallery of central coordinate of circle is laid prestressed pipe cover plate supporting surface, this supporting surface absolute altitude should guarantee prestressed pipe cover plate settle after elevation meet Center elevation (elevation is Z coordinate, and error is controlled at and is less than 2mm) at the bottom of cover plate;
The 3rd step, the prestressed pipe cover plate that supports prestressed pipe with inclined angle alpha is lifted into design position angle place, is placed on supporting surface, and by dedicated positioning device, prism is placed in to prestressed pipe top;
The 4th step, arbitrarily the home point of intervisibility sets up total powerstation at the scene, measures the three-dimensional Measured Coordinates (X in prism center
survey, Y
survey, Z
survey);
The 5th step, calculate prism center theory radius
Theoretical radius=(prism center actual measurement elevation Z
surveydesign altitude at the bottom of-cover plate) Center radius at the bottom of * tan α+cover plate);
The 6th step, conversion prism center real radius and true bearing angle
Real radius=SQRT((X
survey-X
the center of circle)
2+ (Y
survey-Y
the center of circle)
2);
True bearing angle=arccos ((X
survey-X
the center of circle)/real radius));
The 7th step: by the theoretical radius at prism center and real radius and design orientation and true bearing comparison, show that error amount is as testing result respectively.
Afterwards, according to error amount, adjust the position of prestressed pipe cover plate, then detect, until error is less than permissible variation value.
The utility model is laid a good foundation for solving a difficult problem for inclined tube cover plate localization examination, after employing, not only can obtain testing result accurately, thereby for the adjustment of prestressed pipe cover plate physical location provides foundation, and frame station is flexible, measurement is convenient, do not take the space of other working procedure, contribute to meet the needs that construction speed is optimized.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is annular gallery prestressed pipe and the cover plate distribution schematic diagram of reactor building.
Fig. 2 is the positioning device structure schematic diagram of an embodiment of the utility model.
Fig. 3 is the use view of Fig. 2 locating device.
embodiment:
Embodiment mono-
The coordinate of the relative preset coordinates initial point in the reactor building center of the present embodiment and the annular gallery center of circle is (A7000, B3000), at the bottom of prestressed pipe cover plate Center absolute altitude for-10.284, design radial is 18.25m, 36.6246 °, the design position angle of No. 50 prestressed pipe, prestressed pipe and reactor building center are on a vertical plane, and prestressed pipe becomes 7.83 ° of radial skew angles with prestressed pipe cover plate vertical line.
Application inclined tube cover plate position finding and detection method, referring to Fig. 2 to Fig. 4, comprises the following steps:
Dedicated positioning device shown in the first step, construction drawing 2, this device contains circular base seat board 3-2, the lower surface of this bedplate 3-2 extends the base sleeve 3-1 that external diameter and prestressed pipe 2 internal diameters match, the upper surface of bedplate 3-2 extends the fixed length prism support bar 3-3 coaxial with base sleeve 3-1, the upper end of prism support bar 3-3 has with prism 4 jacks and matches, can make it to stablize circular orientation in place depression 3-4, and the top of prism support bar 3-3 has the chamfering of being convenient to plug-in mounting prism;
Second step, with X
the center of circle=7000, Y
the center of circle=3000(A7000, B3000) be that the annular gallery of central coordinate of circle is laid prestressed pipe cover plate supporting surface, this supporting surface absolute altitude should guarantee prestressed pipe cover plate settle after elevation meet center at the bottom of cover plate (in Fig. 3 6) design altitude (being Z coordinate)-10.284 errors and be controlled at and be less than 2mm;
The 3rd step, the prestressed pipe cover plate 1 that supports prestressed pipe 2 is lifted into 36.6246 °, design position angle locates by A-frame 5 with inclined angle alpha=7.83 °, be placed on supporting surface, and as shown in Figure 3, the base sleeve of dedicated positioning device 3 is inserted to prestressed pipe 2 upper ends, prism 4 is placed in to the prism supporting bar top of dedicated positioning device 3;
The 4th step, arbitrarily the home point of intervisibility sets up total powerstation at the scene, measures the three-dimensional Measured Coordinates (X in prism center
survey=7014.8106, Y
survey=3011.0050, Z
survey=-8.8430);
The 5th step, calculate prism center theory radius
Theoretical radius=(prism center actual measurement elevation Z
surveydesign altitude at the bottom of-cover plate) Center radius at the bottom of * tan α+cover plate)=(8.843+10.284) * tan (7.83 °)+18.250=18.448;
The 6th step, conversion prism center real radius and true bearing angle
Real radius=SQRT((X
survey-X
the center of circle)
2+ (Y
survey-Y
the center of circle)
2)
＝SQRT（（7014.8106-7000）
2+(3011.0050-3000)
2）＝18.452；
True bearing angle=arccos ((X
survey-X
the center of circle)/real radius))
＝arccos（（7014.8106-7000）/18.452＝36.6156°；
The 7th step: by the theoretical radius at prism center and real radius and design orientation and true bearing comparison, show that error amount is as testing result respectively
Radius deviation=real radius-theoretical radius=(18.452-18.448) * 1000=4mm
°-36.6246 °=-0.009 °, azimuth angle deviation=true bearing angle-design position angle=36.6156
Afterwards, according to testing result, adjust prestressed pipe cover plate position, repeat step above and detect, until meet the demands.
Repeatedly practise proof, the method for the present embodiment efficiently solves the location difficult problem in the construction of reactor building annular gallery, has following remarkable advantage:
1, according to scene is actual, carry out accurate detection and localization, compare with original localization examination method, improved positioning precision;
2, can take the circumstances into consideration any frame station according to intervisibility situation, not require and be erected at central point, therefore avoid taking of construction working face, can parallelly with other operation carry out, be conducive to the optimization of construction speed;
3, adopt special detection device, location is very reliably convenient;
4, efficiently solve a detection and localization difficult problem for space multistory inclined tube cover plate, applying flexible is convenient.
Claims (3)
1. an inclined tube cover plate detection and localization dedicated positioning device, it is characterized in that: contain bedplate, the lower surface of described bedplate extends the base sleeve that external diameter and prestressed pipe internal diameter match, the upper surface of described bedplate extends the fixed length prism support bar coaxial with base sleeve, and the upper end of described prism support bar has the location depression matching with prism jack.
2. inclined tube cover plate detection and localization dedicated positioning device according to claim 1, is characterized in that: the upper end of described prism support bar has circular orientation depression.
3. inclined tube cover plate detection and localization dedicated positioning device according to claim 2, is characterized in that: the top of described prism support bar has chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599497.4U CN203489852U (en) | 2013-09-26 | 2013-09-26 | Special positioning device for inclined pipe cover plate positioning detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599497.4U CN203489852U (en) | 2013-09-26 | 2013-09-26 | Special positioning device for inclined pipe cover plate positioning detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489852U true CN203489852U (en) | 2014-03-19 |
Family
ID=50260675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320599497.4U Expired - Lifetime CN203489852U (en) | 2013-09-26 | 2013-09-26 | Special positioning device for inclined pipe cover plate positioning detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203489852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542821A (en) * | 2013-09-26 | 2014-01-29 | 中国核工业华兴建设有限公司 | Positioning detection method and special positioning device of pipe chute cover plate |
| CN113280775A (en) * | 2021-05-25 | 2021-08-20 | 中国核工业华兴建设有限公司 | Method for checking radius and perimeter of steel lining wall plate |
-
2013
- 2013-09-26 CN CN201320599497.4U patent/CN203489852U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542821A (en) * | 2013-09-26 | 2014-01-29 | 中国核工业华兴建设有限公司 | Positioning detection method and special positioning device of pipe chute cover plate |
| CN103542821B (en) * | 2013-09-26 | 2015-12-02 | 中国核工业华兴建设有限公司 | A kind of inclined tube cover plate position finding and detection method |
| CN113280775A (en) * | 2021-05-25 | 2021-08-20 | 中国核工业华兴建设有限公司 | Method for checking radius and perimeter of steel lining wall plate |
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