CN103867017A - Method for hoisting southwest wall of in-containment refueling water storage tank of nuclear power station - Google Patents
Method for hoisting southwest wall of in-containment refueling water storage tank of nuclear power station Download PDFInfo
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- CN103867017A CN103867017A CN201410005953.7A CN201410005953A CN103867017A CN 103867017 A CN103867017 A CN 103867017A CN 201410005953 A CN201410005953 A CN 201410005953A CN 103867017 A CN103867017 A CN 103867017A
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Abstract
The invention provides a method for hoisting a southwest wall of an in-containment refueling water storage tank of a nuclear power station. The method is characterized by comprising the following steps of before the southwest wall of the in-containment refueling water storage tank is hoisted, respectively hanging one end of each of two cables to one of two lifting lugs arranged on tops of two ends of the southwest wall of the in-containment refueling water storage tank; determining a reasonable hoisting radius which enables the southwest wall of the in-containment refueling water storage tank to be hoisted in through a ring lifting beam on the top of a fourth ring of a steel containment vessel (CV) by using computer-aided design (CAD) drawing in advance; determining a hoisting radius of a large crane, which enables the southwest wall of the in-containment refueling water storage tank to be hoisted in between a second-ring reinforcing ring of the steel CV and a mounted module in a reactor plant of a nuclear island by using CAD drawing in advance, namely the hoisting radius of the crane is changed into a hoisting radius A3 and the southwest wall of the in-containment refueling water storage tank is hoisted in position. The method for hoisting a CA03 module into the reactor plant of the nuclear island through the top of the fourth ring of the CV is good in economy, safe, reliable and good in using effect.
Description
Technical field
The present invention relates to one built-in material-changing water tank southwest wall (hereinafter to be referred as CA03 module) is lifted to the method in nuclear island reactor building by steel containment vessel (hereinafter to be referred as CV) top, Fourth Ring.
Background technology
In nuclear power station, CA03 module 1 is as shown in Figure 1 steel work wall module, is built-in material-changing water tank southwest wall, and it is semicircular arc, the about 35.5m of chord length, the about 14m of camber, upright high about 13m.This CA03 module is being assembled on heavy mail road near nuclear island, after module assembled completes, with large crane by CA03 module from assembling place be lifted into the interior installation in position of nuclear island reactor building 2, when lifting, module gross weight is 201.6t.
In conjunction with Fig. 2 A and Fig. 2 B, there is following difficult point in whole hoisting process:
The first, CA03 module 1 sling height is large, and base is liftoff reaches 46 meters high, and the CA03 module wind-engaging of semi-circular single wall plate structure carries impact greatly, the rotation of restive module, and there is certain danger in lifting.
The second, CA03 module 1 need to hang in from top, CV Fourth Ring, but in the time that CA03 module 1 lifts, the ring of width has been installed is 1118mm on CV Fourth Ring hangs rail beam 3, and CA03 module 1 cannot hang in from top, CV Fourth Ring directly over on-station position.
Three, in hoisting process, CA03 module 1 needs leniently the CV bis-of 807mm to encircle stiffening ring 4 and be arranged between the module of dress 5 (being generally CA01 module) in nuclear island reactor building 2 to pass through, CV bis-encircles stiffening ring 4 and has filled only 3510mm of minimum clearance between module 5, need to again adjust the lifting radius of large crane, find rational position to hang in CA03 module 1.
Four, when CA03 module 1 top fall back to CV bis-encircle stiffening ring below 4 after, need to adjust the lifting radius of large crane, CA03 module 1 is lifted into on-station position, and minimum clearance time in place between CA03 module 1 and CV cylindrical shell is about 87mm, and CA03 module 1 and the collision of CV cylindrical shell easily occur this process.
Five, there is error in CA03 module 1 center of gravity calculation and hanger position, and module tilted, and conference reduces CA03 module 1 and ring hangs rail beam 3, CV bis-encircles the gap between stiffening ring 4, increases CA03 module 1 difficulty in place.Flexible distortion in CA03 module 1 hoisting process, can change CA03 module 1 and ring hangs rail beam 3 and CV bis-encircles the gap between stiffening ring 4, increases module difficulty in place.
Summary of the invention
The object of this invention is to provide a kind of have good economy, security reliability, result of use good CA03 module is hung in to the method in nuclear island reactor building by top, CV Fourth Ring.
In order to achieve the above object, technical scheme of the present invention has been to provide the built-in material-changing water tank of a kind of nuclear power station southwest wall hanging method, it is characterized in that, step is:
The first step, before the wall of the built-in material-changing water tank of lifting southwest, one end of two cable wind ropes is hung on the hanger that top, wall two ends, built-in material-changing water tank southwest sets, its other end through separately be positioned on balancing weight meet a coaster after be connected with fork truck separately respectively, each balancing weight is fixed on the dead ahead of each self-corresponding fork truck and is positioned in same level;
Second step, the rational lifting Radius A 1 utilizing CAD drawing to determine built-in material-changing water tank southwest wall can be hung in from the ring hanging beam at top, steel containment vessel Fourth Ring in advance, adopt this lifting Radius A 1 to utilize crane that built-in material-changing water tank southwest wall is hung behind top, steel containment vessel Fourth Ring, slowly return hook, 2 fork trucks coordinate slowly putting the swing of restricting with the built-in material-changing water tank of continuation control southwest wall, prevents built-in material-changing water tank southwest wall and encircles hanging beam and collide, in the time that built-in material-changing water tank southwest wall top mark is high and top, the steel containment vessel Fourth Ring discrepancy in elevation approaches 4m, stop crane and return hook, extract cable wind rope, cable wind rope is fixed on the hanger at top, steel containment vessel Fourth Ring with wire clips after, continue crane and return hook, in extracing cable wind rope, workman on the top personnel channel of steel containment vessel Fourth Ring draws the rope made of hemp being arranged in advance on the wall of built-in material-changing water tank southwest in advance, swing while falling after rise to control built-in material-changing water tank southwest wall, in the time that built-in material-changing water tank southwest wall falls after rise, in the time that built-in material-changing water tank southwest wall one side is less than 300mm with the gap of ring hanging beam, stop falling after rise, Deng adjusting after the wall displacement of built-in material-changing water tank southwest, continue again to fall after rise,
The 3rd step, the lifting Radius A 2 of the large crane while utilizing in advance CAD drawing to determine to make built-in material-changing water tank southwest wall can steel containment vessel two to encircle filling in stiffening ring and nuclear island reactor building to hang between module, when wall bottom, built-in material-changing water tank southwest is higher than two ring stiffening rings at least when 500mm, crane stops off the hook, filled on the operating platform at module top by operator, two suspender belts that set in advance on the wall of built-in material-changing water tank southwest are connected to by Chain block respectively on the anchor point setting, and tighten up a little Chain block, confirm errorless after, the slow luffing of crane, workman unclasps Chain block simultaneously, coordinate crane adjusting module position, the radius of clean-up of crane is by lifting the slow luffing of Radius A 1 to lifting Radius A 2, after crane amplitude variation puts in place, if the gap of built-in material-changing water tank wall both sides, southwest and two ring stiffening rings is not less than 200mm, directly enter the 4th step, otherwise by Chain block adjust and the position of the whole built-in material-changing water tank of rope made of hemp southwest wall until gap enters the 4th step after meeting the demands:
The 4th step, after built-in material-changing water tank southwest wall is stable, crane starts slow off the hook, constructor slowly adjusts Chain block simultaneously, in the time that built-in material-changing water tank southwest wall distance from bottom has filled module top at least about 500mm, crane stops off the hook, check built-in material-changing water tank southwest wall and filled the second gap between the first gap and built-in material-changing water tank wall both sides, southwest and the two ring stiffening rings between module, if the first gap is not less than 300mm and the second gap is not less than 200mm, directly enter the 5th step, otherwise the position of moving to adjust built-in material-changing water tank southwest wall by Chain block or crane according to on-site actual situations is until the first gap and the second gap enter the 5th step after meeting the demands,
The 5th step, after built-in material-changing water tank southwest wall is stable, crane continues slow off the hook until built-in material-changing water tank southwest wall falls after rise to its bottom apart from on-station position absolute altitude at least when 2m, the lifting radius luffing of crane is to lifting Radius A 3, built-in material-changing water tank southwest wall is lifted into on-station position, in this process, utilize the swing of the built-in material-changing water tank of Chain block control southwest wall, prevent that itself and steel containment vessel ring body from colliding, utilize its rotation of rope made of hemp control being connected on the wall of built-in material-changing water tank southwest simultaneously, crane bar can not have action, if must bull stick, with the rotation of the built-in material-changing water tank of Chain block control southwest wall.
Preferably, the hoisting process carry out described second step under wind speed is not more than the weather of 7.6m/s after.
Preferably, described fork truck selects rated load weight to be at least the fork truck of 5t, is filled to the counterweight of few 5t on fork truck every described.
Preferably, described balancing weight is at least 22t.
Preferably, described lifting Radius A 1 is 37.5m; Described lifting Radius A 2 is 33.85m; Described lifting Radius A 3 is 30.94m.
The present invention has following features: the wire rope that utilizes fork truck traction to hang over CA03 module both sides carrys out the rotation of limiting module; Utilize CAD drawing to determine the position that CA03 module can hang in from the ring hanging beam at top, CV Fourth Ring, and calculate the minimum range of CA03 module outer rim apart from ring hanging beam; Utilize the definite CA03 module of CAD drawing to encircle the position hanging between stiffening ring and CA01 module from CV bis-, and calculate the minimum range of CA03 module outer rim apart from two ring stiffening rings; Hoisted in position process is utilized the swing of Chain block control CA03 module, prevents module and the collision of CV ring body.
Advantage of the present invention be to provide a kind of have good economy, security reliability, result of use good CA03 module is hung in to the method in nuclear island reactor building by top, CV Fourth Ring.
Accompanying drawing explanation
Fig. 1 is the three-dimensional model diagram of CA03 module;
Fig. 2 A is the top view of CA03 module installation site;
Fig. 2 B is the front view of CA03 module installation site;
Fig. 3 is cable wind rope arrangement diagram;
Fig. 4 A is the front view that CA03 module enters the position at CV Fourth Ring;
Fig. 4 B is the top view that CA03 module enters the position at CV Fourth Ring;
Fig. 5 is CA03 module is encircled stiffening ring schematic diagram through CV bis-.
the specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
The invention provides the built-in material-changing water tank of a kind of nuclear power station southwest wall hanging method, the steps include:
The first step, consider the profile of CA03 module 1 semicircle arcuation, the easily rotation of going for a drive when lifting, restive with manpower, lifting is during to 46 meters of height, and the 1 rotation meeting of CA03 module is collided with the suspension rod of crane.In conjunction with Fig. 3, before lifting, using the wire rope of two φ 15mm as cable wind rope 6, one end is hung on the hanger that CA03 module 1 top, two ends sets, two fork trucks 8 that the other end is 5t with rated load weight are respectively connected, the length of every cable wind rope 6 is about 130m, for guaranteeing the tractive force of fork truck 8, on fork truck 8, fill the counterweight of 5t, for preventing that cable wind rope 6 is along with hoisting of CA03 module 1 increases with ground angle, fork truck 8 is produced excessive component vertically upward and causes fork truck 8 to be tumbled, on the 22t balancing weight 7 of the dead ahead 30m advancing at every fork truck 8, fix a 3t and meet a coaster, to guarantee that CA03 module 1 hoists in process, fork truck 8 is only subject to horizontal pull.In addition, for each fork truck 8 is equipped with a commander, coordinate to control the walking of two fork trucks 8, control the tractive force of cable wind rope 6 to CA03 module 1, prevent that CA03 module 1 from rotating aloft.When wind speed is 13m/s as calculated, the tractive force of cable wind rope 6 is 1t, can prevent that CA03 module 1 from rotating.In order to reduce the pulling force of cable wind rope 6, guarantee the safety of lifting, the weather of selecting wind speed to be not more than 7.6m/s lifts.
Second step, utilize CAD drawing to determine reasonably lifting radius, CA03 module 1 can be hung in from the ring hanging beam 3 at top, CV Fourth Ring.As shown in Fig. 4 A and Fig. 4 B, in the time that the lifting radius of crane is 37.5m, the distance at fixed pulley center to center distance lifting hook pulley center, suspension rod top is 12778mm, is greater than minimum safe distance 10000mm, and it is 2m that CA03 module 1 is gone to the bottom apart from CV Fourth Ring upper limb, meets lifting requirements.CA03 module 1 outer rim is 570mm apart from the minimum range of ring hanging beam 3, and this gap can guarantee that CA03 module 1 hangs in from ring hanging beam 3.Need the details of considering to be: crane hangs CA03 module 1 after shown position, slowly returns hook, and 2 fork trucks 8 coordinate slowly puts rope, can continue to control the swing of CA03 module 1, prevent CA03 module 1 and encircle hanging beam 3 and collide.In the time that CA03 module 1 top mark is high and top, the CV Fourth Ring discrepancy in elevation approaches 4m, cable wind rope 6 will be collided with CV Fourth Ring upper limb, now should stop crane and return hook, extracts cable wind rope 6, cable wind rope 6 use wire clips are fixed on the hanger at top, CV Fourth Ring, prevent that cable wind rope 6 from falling to hurting sb.'s feelings from eminence is attached.When extracing cable wind rope 6, the workman on the top personnel channel of CV Fourth Ring will draw the rope made of hemp being arranged in advance in CA03 module 1, the swing while falling after rise to control CA03 module 1 in advance.In the time that CA03 module 1 falls after rise, the monitoring librarian use Walkie talkie of CA03 module 1 both sides is linked up, and in the time that CA03 module 1 one sides are less than 300mm with ring hanging beam 3 gaps, should inform that commanding stops falling after rise.Deng adjusting behind CA03 module 1 position, then continue to fall after rise.
The 3rd step, utilize CAD drawing to determine that CA03 module 1 can encircle from CV bis-the lifting radius of crane while hanging between stiffening ring 4 and CA01 module 5.In the time that the lifting radius of crane is 33.85m, CA03 module 1 outer rim is 231mm apart from the minimum range of two ring stiffening rings 4, and this gap can guarantee that CA03 module 1 hangs between two ring stiffening rings 4 and CA01 module 5, as shown in Figure 5.Complete above step, the lifting radius of crane need to be from 37.5m luffing to 33.85m.Need the details of considering to be: the rocking of CA03 module 1 need control crane amplitude variation time, prevents that CA03 module 1 and two from encircling stiffening rings 4 and colliding.Measure is as follows: when CA03 module 1 bottom is during higher than two ring stiffening ring 4 about 500mm, crane stops off the hook, workman is on CA01 module 5 top operating platforms, by two suspender belts that are arranged in CA03 module 1, be connected on the anchor point setting by Chain block respectively, and tighten up a little Chain block.Confirm errorless after, the slow luffing of crane, workman unclasps Chain block simultaneously, coordinate crane adjust CA03 module 1 position, the crane radius of clean-up by the slow luffing of 37.5m to about 33.85m.After crane amplitude variation puts in place, the gap of CA03 module 1 both sides and two ring stiffening rings 4 should be not less than 200mm.If gap does not meet the demands, adjust and the whole module position of the rope made of hemp by Chain block.After CA03 module 1 is stable, crane starts slow off the hook, and constructor slowly adjusts Chain block simultaneously.In the time of the CA03 module 1 distance from bottom CA01 module 5 about 500mm in top, crane stops off the hook, checks the gap between CA03 module 1 and CA01 module 5, should be not less than 300mm, meanwhile, the gap between CA03 module 1 both sides and two ring stiffening rings 4 all should be not less than 200mm.If gap does not meet the demands, can move adjusting module position by Chain block or crane according to on-site actual situations.After module stability, crane continues slow off the hook, and workman utilizes the rope made of hemp control module rotation at CA03 module 1 two ends, and this process crane bar can not have action, as must bull stick, with the rotation of Chain block control CA03 module 1.
When the 4th step, CA03 module 1 fall after rise to bottom apart from absolute altitude 2m in place, crane amplitude variation, lifting radius becomes 30.94m from 33.85m, and CA03 module 1 is lifted into on-station position, this process is utilized the swing of Chain block control CA03 module 1, prevents that CA03 module 1 and two ring stiffening rings 4 from colliding.
Claims (5)
1. the built-in material-changing water tank of a nuclear power station southwest wall hanging method, is characterized in that, step is:
The first step, front at the built-in material-changing water tank southwest wall of lifting (1), one end of two cable wind ropes (6) is hung on the hanger that wall (1) top, two ends, built-in material-changing water tank southwest sets, its other end through separately be positioned on balancing weight (7) meet a coaster after be connected with fork truck (8) separately respectively, each balancing weight (7) is fixed on the dead ahead of each self-corresponding fork truck (8) and is positioned in same level;
Second step, utilize CAD drawing to determine the rational lifting Radius A 1 that built-in material-changing water tank southwest wall (1) can be hung in from the ring hanging beam (3) at top, steel containment vessel Fourth Ring in advance, adopt this lifting Radius A 1 to utilize crane that built-in material-changing water tank southwest wall (1) is hung behind top, steel containment vessel Fourth Ring, slowly return hook, 2 fork trucks (8) coordinate slowly putting the swing of restricting with the continuation built-in material-changing water tank southwest wall of control (1), prevents built-in material-changing water tank southwest wall (1) and encircles hanging beam (3) and collide, in the time that built-in material-changing water tank southwest wall (1) top mark is high and top, the steel containment vessel Fourth Ring discrepancy in elevation approaches 4m, stop crane and return hook, extract cable wind rope (6), cable wind rope (6) is fixed on the hanger at top, steel containment vessel Fourth Ring with wire clips after, continue crane and return hook, in extracing cable wind rope, workman on the top personnel channel of steel containment vessel Fourth Ring draws the rope made of hemp being arranged in advance on built-in material-changing water tank southwest wall (1) in advance, swing while falling after rise to control built-in material-changing water tank southwest wall (1), in the time that built-in material-changing water tank southwest wall (1) falls after rise, in the time that built-in material-changing water tank southwest wall (1) one side is less than 300mm with the gap of ring hanging beam (3), stop falling after rise, Deng adjusting behind wall (1) position, built-in material-changing water tank southwest, continue again to fall after rise,
The 3rd step, the lifting Radius A 2 of the large crane while utilizing in advance CAD drawing to determine to make built-in material-changing water tank southwest wall (1) can steel containment vessel two to encircle to hang between the interior module of dress (5) of stiffening ring (4) and nuclear island reactor building (2), when built-in material-changing water tank southwest wall (1) bottom is higher than two ring stiffening rings (4) at least when 500mm, crane stops off the hook, filled on the operating platform at module (5) top by operator, two suspender belts that will set in advance on built-in material-changing water tank southwest wall (1) are connected to by Chain block respectively on the anchor point setting, and tighten up a little Chain block, confirm errorless after, the slow luffing of crane, workman unclasps Chain block simultaneously, coordinate crane adjusting module position, the radius of clean-up of crane is by lifting the slow luffing of Radius A 1 to lifting Radius A 2, after crane amplitude variation puts in place, if the gap of built-in material-changing water tank wall (1) both sides, southwest and two ring stiffening rings (4) is not less than 200mm, directly enter the 4th step, otherwise by Chain block adjust and the position of the whole built-in material-changing water tank southwest wall of the rope made of hemp (1) until gap enters the 4th step after meeting the demands:
The 4th step, after built-in material-changing water tank southwest wall (1) is stable, crane starts slow off the hook, constructor slowly adjusts Chain block simultaneously, in the time that built-in material-changing water tank southwest wall (1) distance from bottom has filled module (5) top at least about 500mm, crane stops off the hook, check built-in material-changing water tank southwest wall (1) and filled the second gap between the first gap and built-in material-changing water tank wall (1) both sides, southwest and the two ring stiffening rings (4) between module (5), if the first gap is not less than 300mm and the second gap is not less than 200mm, directly enter the 5th step, otherwise the position of moving to adjust built-in material-changing water tank southwest wall (1) by Chain block or crane according to on-site actual situations is until the first gap and the second gap enter the 5th step after meeting the demands,
The 5th step, after built-in material-changing water tank southwest wall (1) is stable, crane continues slow off the hook until built-in material-changing water tank southwest wall (1) falls after rise to its bottom apart from on-station position absolute altitude at least when 2m, the lifting radius luffing of crane is to lifting Radius A 3, built-in material-changing water tank southwest wall (1) is lifted into on-station position, in this process, utilize the swing of the built-in material-changing water tank southwest wall of Chain block control (1), prevent that itself and steel containment vessel ring body from colliding, utilize its rotation of rope made of hemp control being connected on built-in material-changing water tank southwest wall (1) simultaneously, crane bar can not have action, if must bull stick, with the rotation of the built-in material-changing water tank of Chain block control southwest wall (1).
2. the built-in material-changing water tank of a kind of nuclear power station as claimed in claim 1 southwest wall hanging method, is characterized in that: the hoisting process carry out described second step under wind speed is not more than the weather of 7.6m/s after.
3. the built-in material-changing water tank of a kind of nuclear power station as claimed in claim 1 southwest wall hanging method, it is characterized in that: described fork truck (8) selects rated load weight to be at least the fork truck of 5t, is filled to the counterweight of few 5t on fork truck every described (8).
4. the built-in material-changing water tank of a kind of nuclear power station as claimed in claim 1 southwest wall hanging method, is characterized in that: described balancing weight (7) is at least 22t.
5. the built-in material-changing water tank of a kind of nuclear power station as claimed in claim 1 southwest wall hanging method, is characterized in that: described lifting Radius A 1 is 37.5m; Described lifting Radius A 2 is 33.85m; Described lifting Radius A 3 is 30.94m.
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| CN201410005953.7A CN103867017B (en) | 2014-01-07 | 2014-01-07 | A kind of nuclear power station built-in material-changing water tank southwest wall hanging method |
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| CN201410005953.7A CN103867017B (en) | 2014-01-07 | 2014-01-07 | A kind of nuclear power station built-in material-changing water tank southwest wall hanging method |
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| CN103867017B CN103867017B (en) | 2016-02-10 |
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Citations (5)
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| US20010055361A1 (en) * | 2000-04-20 | 2001-12-27 | Hiroshi Hasegawa | Loading/unloading method, a crane rotating apparatus, and a hoisting apparatus |
| JP2008291432A (en) * | 2007-05-22 | 2008-12-04 | Toshiba Corp | Installation equipment with protective sheet, and storm protection construction method |
| US20100206830A1 (en) * | 2009-02-17 | 2010-08-19 | Hitachi Plant Technologies, Ltd. | Heavy construction installation method |
| CN101830392A (en) * | 2010-04-30 | 2010-09-15 | 中国核工业第五建设有限公司 | Special lifting tool for steel containment vessel of nuclear power station and lifting method |
| CN101967886A (en) * | 2010-11-16 | 2011-02-09 | 中国核工业第五建设有限公司 | Assembly and installation methods of steel containment vessel of nuclear power station |
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2014
- 2014-01-07 CN CN201410005953.7A patent/CN103867017B/en active Active
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|---|---|---|---|---|
| US20010055361A1 (en) * | 2000-04-20 | 2001-12-27 | Hiroshi Hasegawa | Loading/unloading method, a crane rotating apparatus, and a hoisting apparatus |
| JP2008291432A (en) * | 2007-05-22 | 2008-12-04 | Toshiba Corp | Installation equipment with protective sheet, and storm protection construction method |
| US20100206830A1 (en) * | 2009-02-17 | 2010-08-19 | Hitachi Plant Technologies, Ltd. | Heavy construction installation method |
| CN101830392A (en) * | 2010-04-30 | 2010-09-15 | 中国核工业第五建设有限公司 | Special lifting tool for steel containment vessel of nuclear power station and lifting method |
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Effective date of registration: 20210122 Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: 200233 Building 2, 888 Tianlin Road, Minhang District, Shanghai Patentee before: STATE NUCLEAR POWER ENGINEERING Co. |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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