CN101645314B - Method for magnifying underwater accurate installation reference of large-scale member - Google Patents
Method for magnifying underwater accurate installation reference of large-scale member Download PDFInfo
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- CN101645314B CN101645314B CN2009101699455A CN200910169945A CN101645314B CN 101645314 B CN101645314 B CN 101645314B CN 2009101699455 A CN2009101699455 A CN 2009101699455A CN 200910169945 A CN200910169945 A CN 200910169945A CN 101645314 B CN101645314 B CN 101645314B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention provides a method for magnifying underwater accurate installation reference of a large-scale member, comprising the following steps: (a) measuring positions of a plurality of reference holes on the surface of flanges of a hanging basket wall of an underwater reactor; (b) copying positions of the reference holes on two reference copy boxes and/or two reference copy plates; (c) fixing the two reference copy boxes and/or two reference copy plates copied with reference holes on the same positions of the upper surface and the lower surface of the large-scale member respectively; and (d) adopting long position pins to pass through the copied reference holes of the two reference copy boxes and/or two reference copy plates fixed on the upper surface and the lower surface of the large-scale member in turn respectively to lead the copy reference holes to coincide with a plurality of reference holes on the surface of the flanges of the hanging basket wall of the reactor in an axis. The method in the invention carries out virtual extension on the reference holes on the surface of the flanges of the hanging basket wall of the reactor, copies on the water surface, and lead the original reference holes and the reference holes copied on the water surface to coincide with each other in the axis through the position pins, thus finishing accurate position and installation of the large-scale member.
Description
Technical field
The invention belongs to Machine Design, installing area, be specifically related to a kind of method for magnifying underwater accurate installation reference of large-scale member.
Background technology
Nuclear power plant is after long-time running, the situation that reliability reduces or part of appliance damages that some equipment can occur, this just need overhaul or transform these equipment, can relate to the accurate installation exercise of part large-scale component in its process under water, in general operating environment, carry out the accurate installation of large-scale component, its reference field is selected than being easier to usually, but because the singularity of nuclear power plant, some equipment is that personnel can't closely operate for a long time, especially the equipment in refuelling pool is the high radiation of high dose mostly, equipment can't take out more than the water surface for a long time, more impossible the diving beneath the water for a long time of personnel installed equipment, and this just requires we maintainer accurately to install for underwater components by some specific process on the coast benchmark is provided.
At present, this technology at home and abroad particularly nuclear power maintenance field also be in the immature stage, large-scale component under water accurately installation technology can't satisfy the needs of real work fully, under the situation of actual condition more complicated, can only take the measure that substitutes.
Summary of the invention
The purpose of this invention is to provide a kind of convenience, reliable method for magnifying underwater accurate installation reference of large-scale member.
Realize technical scheme of the present invention: a kind of method for magnifying underwater accurate installation reference of large-scale member, it accurately is installed to large-scale component under water on the reactor cradle cylinder body, and these method concrete steps are as follows:
(a) measure several datum hole positions on the reactor cradle cylinder body flange face under water;
(b) above-mentioned several datum hole positions being copied to two benchmark duplicates on box and/or two the benchmark copy boards;
(c) two benchmark that will duplicate datum hole duplicate the upper and lower surface same position place that box and/or two benchmark copy boards are separately fixed at large-scale component;
(d) two benchmark fixing of the upper and lower surface that adopts long register pin to pass large-scale component successively respectively duplicate the datum hole that duplicates on box and/or two the benchmark copy boards, it is overlapped on axis with several datum holes on the reactor cradle cylinder body flange face, thereby extend on the water surface the datum hole on the reactor cradle cylinder body flange face is virtual, make large-scale component finish accurate installation.
Effect of the present invention is: a kind of method for magnifying underwater accurate installation reference of large-scale member of the present invention, it carries out virtual prolongation with the datum hole on the reactor cradle cylinder body flange face, it is copied on the water surface, benchmark overlaps on axis on making the master reference hole and be replicated in the water surface by alignment pin, makes large-scale component finish accurate location and installation.
Description of drawings
Fig. 1 is for carrying and grasping system frock installation process synoptic diagram under water;
Fig. 2 is a reactor hanging basket flange face φ 68mm datum hole synoptic diagram;
Fig. 3 duplicates the box structural representation for benchmark;
Fig. 4 is a benchmark copy board structural representation;
Fig. 5 is for carrying and grasping system frock installation synoptic diagram under water.
Among the figure: 1-reactor cradle cylinder body; 2-carries and the perpendicular truss of grasping system frock under water; 3-carries and grasping system frock transverse truss under water; 4-benchmark copy board; The 5-benchmark duplicates box; The datum hole that 6-duplicates; The long register pin of 7-; The datum hole of 8-reactor cradle cylinder body flange face.
Embodiment
Below in conjunction with the drawings and specific embodiments method for magnifying underwater accurate installation reference of large-scale member of the present invention is further described.
As shown in Figure 1, certain nuclear power plant's reactor hanging basket is in repair process, large-scale auxiliary part need be carried under water with the grasping system frock and accurately be installed under water reactor cradle cylinder body 1 top, carry under water with the grasping system frock and mainly comprise conveying under water and grasping system frock transverse truss 3 and coupled conveying under water and the perpendicular truss 2 of grasping system frock.
Concrete installation steps are as follows:
(a) as shown in Figure 2, measure three φ 68mm datum hole 8 positions on the reactor cradle cylinder body flange face earlier.
(b) above-mentioned three datum hole positions being copied to two benchmark respectively duplicates on box 5 and two the benchmark copy boards 4; As shown in Figure 3, duplicate at each benchmark and duplicated two datum holes 6 on the box 5; As shown in Figure 4, duplicating on the datum hole 6 on each benchmark copy board.
(c) as shown in Figure 1, above-mentioned two benchmark that duplicate two datum holes 6 are duplicated box 5 and carry two surperficial same position places up and down with grasping system frock transverse truss 3 one ends under water by bolt respectively; Two benchmark copy boards 4 duplicating a datum hole 6 are carried two surperficial same position places up and down with grasping system frock transverse truss 3 other ends under water by bolt respectively.
(d) as shown in Figure 1, two the fixing benchmark of upper and lower surface that adopt three long register pins 7 to pass large-scale component successively respectively duplicate and duplicate datum hole 6 on box 5 and two the benchmark copy boards 4, it is overlapped on axis with 3 datum holes 8 on the reactor cradle cylinder body flange face, thereby extend on the water surface the datum hole on the reactor cradle cylinder body flange face is virtual, make large-scale component finish accurate installation.
Method for magnifying underwater accurate installation reference of large-scale member of the present invention, it is corresponding consistent respectively with hanging basket flange face φ 68mm positioning reference hole with the datum hole 6 on the benchmark copy board that its benchmark duplicates box, carry and grasping system frock truss position thereby can adjust on the water under water, make the corresponding datum hole to be on the same axis, promptly finished duplicating and extending amplification of datum hole under water.Insert alignment pin 7, can finish the accurate installation of carrying under water with grasping system frock truss, carry under water with grasping system frock truss in place after as shown in Figure 4.
Claims (1)
1. method for magnifying underwater accurate installation reference of large-scale member, it accurately is installed to large-scale component under water on the reactor cradle cylinder body, and it is characterized in that: these method concrete steps are as follows:
(a) measure several datum holes (8) position on the reactor cradle cylinder body flange face under water;
(b) above-mentioned several datum hole positions being copied to two benchmark duplicates on box (5) and/or two the benchmark copy boards (4);
(c) two benchmark that will duplicate datum hole (6) duplicate the upper and lower surface same position place that box (5) and/or two benchmark copy boards (4) are separately fixed at large-scale component;
(d) two benchmark fixing of the upper and lower surface that adopts long register pin (7) to pass large-scale component successively respectively duplicate and duplicate datum hole (6) on box (5) and/or two the benchmark copy boards (4), it is overlapped on axis with several datum holes (8) on the reactor cradle cylinder body flange face, thereby extend on the water surface the datum hole on the reactor cradle cylinder body flange face is virtual, make large-scale component finish accurate installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101699455A CN101645314B (en) | 2009-09-11 | 2009-09-11 | Method for magnifying underwater accurate installation reference of large-scale member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101699455A CN101645314B (en) | 2009-09-11 | 2009-09-11 | Method for magnifying underwater accurate installation reference of large-scale member |
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| Publication Number | Publication Date |
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| CN101645314A CN101645314A (en) | 2010-02-10 |
| CN101645314B true CN101645314B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101699455A Active CN101645314B (en) | 2009-09-11 | 2009-09-11 | Method for magnifying underwater accurate installation reference of large-scale member |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881614B (en) * | 2010-04-23 | 2011-09-07 | 中国第一重型机械股份公司 | Measuring method for establishing equipment installation reference in stack pits |
| CN104864856A (en) * | 2014-02-25 | 2015-08-26 | 上海核工程研究设计院 | Reactor internal hanging basket flange hoisting aperture center line measurement device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250129A (en) * | 1998-09-14 | 2000-04-12 | 东芝株式会社 | Construction working method for nuclear electric power generation installation |
| JP2002243386A (en) * | 2001-02-22 | 2002-08-28 | Toshiba Corp | Method for installing and constructing condenser |
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2009
- 2009-09-11 CN CN2009101699455A patent/CN101645314B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250129A (en) * | 1998-09-14 | 2000-04-12 | 东芝株式会社 | Construction working method for nuclear electric power generation installation |
| JP2002243386A (en) * | 2001-02-22 | 2002-08-28 | Toshiba Corp | Method for installing and constructing condenser |
| CN1374496A (en) * | 2001-02-22 | 2002-10-16 | 株式会社东芝 | Installation construction method for condenser |
Non-Patent Citations (1)
| Title |
|---|
| 段远刚，何大明，李燕.秦山核电二期工程反应堆堆内构件设计.《核动力工程》.2003,第24卷(第2期),126-129. * |
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| CN101645314A (en) | 2010-02-10 |
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