CN101638252B - Deaerator assembling method - Google Patents
Deaerator assembling method Download PDFInfo
- Publication number
- CN101638252B CN101638252B CN200810142667XA CN200810142667A CN101638252B CN 101638252 B CN101638252 B CN 101638252B CN 200810142667X A CN200810142667X A CN 200810142667XA CN 200810142667 A CN200810142667 A CN 200810142667A CN 101638252 B CN101638252 B CN 101638252B
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- oxygen
- eliminating device
- deaerator
- sections
- cylindrical shell
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 14
- 241000209094 Oryza Species 0.000 claims description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims description 7
- 235000009566 rice Nutrition 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 2
- 238000004904 shortening Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 17
- 238000006392 deoxygenation reaction Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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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
Abstract
The invention discloses a deaerator assembling method, which comprises the following steps of: (1) laying hauling tracks on a deaerator platform; (2) sequentially and respectively lifting two sections of deaerator cylinder bodies onto the tracks; (3) hauling the deaerator cylinder bodies to an assembling position; (4) jacking up the deaerator cylinder bodies, assembling permanent supports and then assembling the deaerator cylinder bodies on the permanent supports; and (5) combining the two sections of deaerator cylinder bodies into a whole. The assembling process of the invention is simpler than that of the prior art. If the preparation work is ready, the deaerator can be lifted and hauled to the assembling position in two days. Therefore, the method has the advantages of greatly shortening the assembling time, at least shortening the construction period by 1.5 months from the original construction period and saving investment, time, manpower and material resources.
Description
Technical field
The present invention relates to the nuclear power plant equipment installation method, relate in particular to a kind of deaerator assembling method.
Background technology
The oxygen-eliminating device Hoisting Program of mountain range Australia second phase nuclear power station is; Oxygen-eliminating device divides four sections; Four sections cylindrical shells are hauled the lifting beam below to auxiliary compartment by four, three, two, one order; Through windlass-pulley blocks hoisting gear cylindrical shell laterally is promoted to the deoxygenation layer from zero rice, half-twist is transformed into two groups of 40 tons of cat heads that are installed on the walking beam with the cylindrical shell suspension centre from lifting beam and hangs on; Through the windlass haulage gear cylindrical shell is hauled by the Equipment Foundations, use weight shifter transverse translation (walking beam center from the oxygen-eliminating device base center alignment C row direction squinted 2100mm) to Equipment Foundations then.The oxygen-eliminating device cylindrical shell of jack-uping is installed behind the permanent bearing in place.This scheme is found following shortcoming in implementation process:
1) lifting is long in time limit: hoisting process is loaded down with trivial details, and accidents happened easily, causes lifting long in time limit;
2) welding is long in time limit: oxygen-eliminating device four joint arrivals, and the welding job amount is big behind the hoisted in position, totally 3 road weld seams, approximately time-consuming 3 months, length expended time in;
3) only be used for lifting, the waste investment because of build 2 row walking beam arranged side by side on deoxygenation layer top;
4) lifting beam of the straight oxygen-eliminating device center line of 1,2 deoxygenation layer roof pendant only is used for lifting, the waste investment;
5) owing to build walking beam, the above beam column of deoxygenation layer+28.2m is the design of load-bearing beam column, the waste investment;
6) more with the civil engineering mating interface:
1.-2. deoxygenation layer and following each floor panel thereof are slow between the axle builds for
auxiliary compartment lifting passage;
7) suspender of making that cat head hangs etc. need be done a series of test routine, and process is loaded down with trivial details.
Summary of the invention
The technical matters that the present invention will solve is, a kind of installation method of oxygen-eliminating device is provided, to solve lifting time length, long in time limit, too high, the program complicated problems of investment of welding.
The technical solution adopted for the present invention to solve the technical problems is: a kind of deaerator assembling method may further comprise the steps:
(1), lays the haul track at the oxygen-eliminating device platform;
(2), two sections oxygen-eliminating device cylindrical shells are lifted respectively on the haul track successively;
(3), then its traction is hauled to the installation site;
(4), jack-up oxygen-eliminating device cylindrical shell, install behind the permanent bearing in place;
(5), two sections oxygen-eliminating device cylindrical shells are combined into one.
In the said step (1), preferred version is: haul tracks in the i.e. 28.2 meters layers layings of oxygen-eliminating device platform, the haul track lays along oxygen-eliminating device center line in place.
In the said step (1); Also comprise: detect adjustment laying the haul track of accomplishing; Be used to place the interim supporting seat of oxygen-eliminating device cylindrical shell in zero rice lifting zone of correspondence haul track (being factory building exterior lateral area under the oxygen-eliminating device layer in place) assembling, place and adjust cylindrical shell.
In the said step (2); Preferred version is: the regional correspondence of zero rice lifting at correspondence haul track is provided with two cranes; With crane two sections oxygen-eliminating device cylindrical shells are lifted respectively on the haul track successively, described two cranes are separately positioned on haul both sides, track front correspondence position.
In the said step (3), preferred version is: cooperate windlass that two sections oxygen-eliminating device cylindrical shell tractions are hauled to the installation site with the weight shifter.
In the said step (3); Most preferably scheme is: on the haul track, be provided with the weight shifter; The oxygen-eliminating device cylindrical shell of lifting is placed on the weight shifter, after the locality adjustment to the oxygen-eliminating device cylindrical shell, through windlass two sections oxygen-eliminating device cylindrical shells is drawn haul successively to the installation site again.
In the said step (4), preferred version is: jack-up oxygen-eliminating device cylindrical shell, withdraw from the weight shifter, and install behind the permanent bearing in place.
In the said step (4), most preferably scheme is: the oxygen-eliminating device cylindrical shell of jack-uping, withdraw from weight shifter and haul track, and install behind the permanent bearing in place.
In the said step (5), preferred version is: look for mouth to align to two sections oxygen-eliminating device cylindrical shells, through welding two sections oxygen-eliminating device cylindrical shells are combined.
In the said step (5); Most preferably scheme is: hang absolute altitude, level and the concentricity of adjusting two sections oxygen-eliminating device cylindrical shells with the bottom lifting jack through being installed in oxygen-eliminating device top maintenance beam; Adjustment butt joint weld bond gap and radial missing; After confirming to meet the requirements,, through welding two sections oxygen-eliminating device cylindrical shells are combined again two sections interim positioning and fixing of oxygen-eliminating device.
Installation process of the present invention is comparatively simple with respect to prior art; As long as preliminary work puts in place, the two day time of oxygen-eliminating device just can be accomplished the lifting haul and put in place, has shortened the set-up time greatly; In addition also have the following advantages: 1, two sections arrivals of oxygen-eliminating device; Assembled on site only has circular weld one, reduces site welding counterpart workload, and the duration can be compressed at least 1.5 months on former basis; Compare with site welding, producer welds at equipment, and it is convenient to implement, and welding condition is better, and welding quality is secure; 2 ,+the above framework design of 28.2m deoxygenation layer need not consider to lift load, can practice thrift investment; 3, the oxygen-eliminating device top only need be established to overhaul and used less than 20t lifting girder steel, and prior art can be established lifting beam of two walking beams less relatively, practices thrift investment; 4, suspender such as need not repeat to make that cat head hangs, a series of test lifting program that it goes without doing saves time and manpower and materials.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is an embodiment of the invention installation procedure block diagram;
Fig. 2 oxygen-eliminating device is by the crane erect-position figure of loop wheel machine segmental hoisting.
Embodiment
As shown in Figure 1, be the oxygen-eliminating device installation steps, these installation steps specifically are divided into following components:
One, oxygen-eliminating device production: oxygen-eliminating device is assembled into 2 sections in device fabrication producer, establishes 4 temporary supports, the 8m of being separated by for every section.Long-pending weight of each segment body such as following table 1:
Table 1:
| Sequence number | Component names | Quantity | Size (mm) length * wide * height | Design net weight (t) | Make weight (t) | Lifting load t (getting 1.1 times of Dynamic factors) |
| 1 | Oxygen-eliminating device I section | 1 | ?～25396×5080×5975 | ～119.6 | ～132.7 | ～145.97 |
| 2 | Oxygen-eliminating device II section | 1 | ?～24796×5080×5975 | ～109 | ～119.9 | ～131.89 |
ADG system oxygen-eliminating device is positioned at 28.2 meters layers of conventional island factory building, and being divided into during lifting is 2 sections cylindrical shells, and the heaviest section cylindrical shell weight is about 150 tons; Be about 25.4 meters; Diameter is 4356mm, and overall height is about 6 meters, strides (oxygen-eliminating device layer in place is the factory building exterior domain down) from MB factory building southern side BC and lifts.
Two, lifting is prepared:
1, the lifting of factory building haul end (11) 28.2 meters～39.1 meters interlayer bodies of wall (comprising all structures such as crossbeam, shingle nail) are postponed;
2, the slow dress of deaerator bay walking beam (this design height of looking walking beam determines whether needs, must delay dress when highly dropping in the haul channel range like it);
3, postpone in the basis of auxiliary compartment 28.2m layer steam converter; Stair are postponed.
4,4～11 (oxygen-eliminating device place in place front end is axis to the factory building southern side) platform crossbeam of 28.2 meters layers and axle column design intensity thereof satisfy the haul requirement, and maximum load is about 220 tons during haul;
5, the lifting zone building of factory building lifting haul end is postponed, and site area requires levelling of the land and all rolls compacting according to the on-site hoisting needs, and consistent with the highway absolute altitude, compression resistance is not less than 25t/m
2
6, because of laying railway sleepers, distance can not be too little between permanent bearing absolute altitude of oxygen-eliminating device and the floorboard, according to a preliminary estimate greater than 400mm.
7, the inspection of loop wheel machine device finishes mechanical hook-up flexibility and reliability, dependable performance.
8, the loop wheel machine erect-position place of factory building lifting haul end be backfilled to 0m or more than, ground intensity 15t/m
2Or more than.
9, transport channel is unimpeded satisfies movement requirement.
Three, the worker's facility and the machinery of installation needs:
1,250t crawler belt loop wheel machine is 1;
2, the 150t truck crane is 1;
3, heavy haul track girder is 160 meters;
4, the 5t windlass is 2;
5,60t weight movement device is 4;
6,10t (2 * 2) pulley blocks;
7, lifting jack is 8;
Four, haul track laying:
Arrange oxygen-eliminating device haul track at auxiliary compartment 28.2m layer: track lays along oxygen-eliminating device center line in place, and track is adopted HW400 * 400H shaped steel, and track is at the high sleeper of the sub-crossbeam of every organ timbering top position pad 300mm, and track fulcrum span is 8m and 12m.
Center line, absolute altitude and the level of repetition measurement haul track guarantee that its centerline deviation is no more than ± 5mm, and the absolute altitude deviation is no more than ± 5mm, levelness≤0.5mm/m, otherwise should give adjustment.
Repetition measurement inspection wall scroll haul track difference of height is answered≤3mm, and single track joint mismatch is answered≤1mm, not
Then should give adjustment.
Five, crane setting
As shown in Figure 2, two cranes 5,6 are separately positioned on zero rice lifting zone and promptly haul both sides, track 2 front correspondence position.
Six, the layout of windlass
28.2 meters platforms between B～C row (colonnades of oxygen-eliminating device both sides), be listed in oxygen-eliminating device place in place near C near 3,4 before 2 pillar positions respectively arrange a 5t windlass, totally 2.Each windlass will be fixed with wire rope binding formula with pillar nearby, in position go up and arrange tackle block, guarantee that oxygen-eliminating device is steadily reliable along the process that drags of slideway.
Seven, oxygen-eliminating device lifting step:
1), windlass is installed, and arrange trailer system at the deoxygenation layer;
2), haul track girders from laying two between 3～11 (oxygen-eliminating device front end in place to factory building southern side axis) in oxygen-eliminating device center line both sides;
3), at the zero rice lifting zone interim supporting seat of assembling and first section oxygen-eliminating device cylindrical shell (head end), and it is consistent with installation direction to adjust the direction of cylindrical shell.
4), the colligation lifting rope, hook vertically lifts with two loop wheel machines and to be higher than at the bottom of cylindrical shell to its interim supporting seat more than the weight shifter face that is arranged on the rail end highly.
5), loop wheel machine 5 is slowly to 11 direction of principal axis (promptly to the factory building direction) fork; The synchronously slow in the same way sport car of loop wheel machine 6; The oxygen-eliminating device cylindrical shell is slowly moved to the deaerator bay direction, and make the interim supporting seat of its front end slowly fall to being positioned to be arranged on two weight shifters on the haul track.
6), readjust cylindrical shell direction and front and back level, connect the windlass trailer system in barrel front end, start windlass, make the preliminary stressed but not obvious reach of cylindrical shell.
7), inspection oxygen-eliminating device cylindrical shell, forward and backward loop wheel machine and trailer system be no abnormal, slow loose loop wheel machine 5 hooks fall the interim supporting seat of barrel front end to the position on the weight shifter fully, check once more no abnormal back remove before lifting rope, withdraw from loop wheel machine 5.
8), continue to start the windlass trailer system, loop wheel machine 6 is slow sport car forward synchronously in the same way, continues cylindrical shell is slowly moved to its basic direction, and makes the interim supporting seat in its rear end fall into haul track termination.
9), at two other weight shifter of track tip placement, readjust the cylindrical shell direction, loose loop wheel machine 6 hooks fall within supporting seat behind the cylindrical shell on the weight shifter.
10), reexamine the stressing conditions of trailer system, cylindrical shell and four weight shifters, confirm no abnormal after, remove loop wheel machine 6 lifting ropes, and withdraw from loop wheel machine 6.
11), continue to start the windlass trailer system, with the cylindrical shell haul to its top, basis.
12), the jacking cylindrical shell withdraws from the weight shifter, cylindrical shell is left on the haul track temporarily.
13), by 3)～12) operation, carry out the lifting work of second section cylindrical shell.
14), jack-up cylindrical shell again, withdraw from the haul track girder, the landing of each section cylindrical shell is in place.
Eight, the combination step of oxygen-eliminating device:
1), before the combination of each section oxygen-eliminating device cylindrical shell, at first tentatively adjust the center in length and breadth and the absolute altitude of its each section.
2), be supported on the interim supporting leg of two sections oxygen-eliminating devices with 4 lifting jack respectively, remove its inner transportation and reinforce with interim and support, and check the quality situation of its internal part.
3), measure interface girth and ovality situation during oxygen-eliminating device counterpart centering earlier, after the diameter deviation of two interface girth deviations, ovality deviation and interface all directions all meets the demands, carry out the counterpart centering work of oxygen-eliminating device, otherwise should correct earlier qualified.
4), on the docking port of both sides, make bevel for welding by the installation drawing requirement, and the clean bevel for welding of thoroughly polishing, 150mm should remove totally with interior slushing oil around the two adjacent face grooves.
5), oxygen-eliminating device top maintenance beam hangs and absolute altitude, level and the concentricity of bottom lifting jack adjustment back segment oxygen-eliminating device through being installed in.
6), adjustment butt joint weld bond gap and radial missing, make whole circle weld gap evenly and meet the installation drawing requirement.
7), counterpart finishes; Check in length and breadth center and the absolute altitude situation of oxygen-eliminating device with respect to the basis; Can allow certain deviation this moment, but departure can not be too big, after confirming to meet the requirements; Adopt interim measure that two sections oxygen-eliminating devices are firmly fixed, hand over welding department to carry out the welding job of cylindrical shell after the flatness of inspection butt joint back oxygen-eliminating device once more.Welding process is carried out by four welder's symmetries synchronously, and the speed of welding of four direction should be consistent and control speed of welding basically and prevent that hot orthopedic situation from occurring.
8), welding should be heat-treated and nondestructive flaw detection examination work on request.
9), after the cylindrical shell combination, each internals is installed.Internals is according to the drawing requirement clean bevel for welding of polishing, and 150mm should remove totally with interior slushing oil around the two adjacent face grooves, and counterpart is proofreaied and correct then, symbol and require after fix with interim positioning and fixing measure.
Claims (6)
1. a deaerator assembling method is characterized in that, may further comprise the steps:
(1), lays the haul track at the oxygen-eliminating device platform;
(2), two sections oxygen-eliminating device cylindrical shells are lifted respectively on the haul track successively;
(3), then its traction is hauled to the installation site;
(4), jack-up oxygen-eliminating device cylindrical shell, install behind the permanent bearing in place;
(5), two sections oxygen-eliminating device cylindrical shells are combined into one;
In the said step (1), lay the haul track at the oxygen-eliminating device platform, the haul track lays along oxygen-eliminating device center line in place; Detect adjustment to laying the haul track of accomplishing, haul zero rice lifting zone of track in correspondence and assemble the interim supporting seat that is used to place the oxygen-eliminating device cylindrical shell, place and adjust cylindrical shell;
In the said step (2), the regional correspondence of zero rice lifting of hauling track in correspondence is provided with two cranes, with crane two sections oxygen-eliminating device cylindrical shells is lifted respectively on the haul track successively, and described two cranes are separately positioned on hauls both sides, track front correspondence position.
2. deaerator assembling method according to claim 1 is characterized in that, in the said step (3), cooperates windlass that two sections oxygen-eliminating device cylindrical shell tractions are hauled to the installation site with the weight shifter.
3. deaerator assembling method according to claim 2 is characterized in that, in the said step (4), jack-up oxygen-eliminating device cylindrical shell is withdrawn from the weight shifter, installs behind the permanent bearing in place.
4. deaerator assembling method according to claim 3 is characterized in that, in the said step (4), the oxygen-eliminating device cylindrical shell of jack-uping is withdrawn from weight shifter and haul track, installs behind the permanent bearing in place.
5. deaerator assembling method according to claim 1 is characterized in that, in the said step (5), looks for mouth to align to two sections oxygen-eliminating device cylindrical shells, through welding two sections oxygen-eliminating device cylindrical shells is combined.
6. deaerator assembling method according to claim 5; It is characterized in that, in the said step (5), hang absolute altitude, level and the concentricity of adjusting two sections oxygen-eliminating device cylindrical shells with the bottom lifting jack through being installed in oxygen-eliminating device top maintenance beam; Adjustment butt joint weld bond gap and radial missing; After confirming to meet the requirements,, through welding two sections oxygen-eliminating device cylindrical shells are combined again two sections interim positioning and fixing of oxygen-eliminating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142667XA CN101638252B (en) | 2008-07-28 | 2008-07-28 | Deaerator assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142667XA CN101638252B (en) | 2008-07-28 | 2008-07-28 | Deaerator assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101638252A CN101638252A (en) | 2010-02-03 |
| CN101638252B true CN101638252B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810142667XA Active CN101638252B (en) | 2008-07-28 | 2008-07-28 | Deaerator assembling method |
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| Country | Link |
|---|---|
| CN (1) | CN101638252B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469018B (en) * | 2018-05-22 | 2019-07-26 | 中国能源建设集团安徽电力建设第一工程有限公司 | A kind of operational method that oxygen-eliminating device is unloaded and lifted |
-
2008
- 2008-07-28 CN CN200810142667XA patent/CN101638252B/en active Active
Non-Patent Citations (5)
| Title |
|---|
| JP昭57-187006A 1982.11.17 |
| JP特开2003-285049A 2003.10.07 |
| 冯春平.岭澳核电站除氧器的吊装.《山东电力技术》.2004,(第136期),67-69. * |
| 刘国洪.大型除氧器吊装施工技术.《建筑机械化》.2005,(第7期),47-48,58. * |
| 陈超华等.大唐宁德电厂600MW机组除氧水箱吊装及拖运.《电力建设》.2007,第28卷(第12期),78-81,85. * |
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|---|---|
| CN101638252A (en) | 2010-02-03 |
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Denomination of invention: Installation method of deaerator Effective date of registration: 20231108 Granted publication date: 20120725 Pledgee: Bank of China Limited Shenzhen Pingshan Branch Pledgor: CHINA NUCLEAR POWER DESIGN COMPANY Ltd. (SHENZHEN) Registration number: Y2023980064548 |
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