CN103758354B - Drum framework of drum strainer mounting method - Google Patents
Drum framework of drum strainer mounting method Download PDFInfo
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- CN103758354B CN103758354B CN201410013636.XA CN201410013636A CN103758354B CN 103758354 B CN103758354 B CN 103758354B CN 201410013636 A CN201410013636 A CN 201410013636A CN 103758354 B CN103758354 B CN 103758354B
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Abstract
In order to solve existing mounting method, to there is installation difficulty high, the problems such as safety factor is low, inefficiency, and the present invention proposes a kind of drum framework of drum strainer mounting method, comprising: order installs king spoke, connects adjacent two king spokes with connector; Assemble secondary spoke group; King spoke installs main beam, and secondary spoke group is installed on connector; With circumferential connecting angle, all major and minor crossbeams are coupled together again; Gear ring holddown groove is arranged on ringwise the top middle portion of the crossbeam on all major and minor spokes, gear ring is fixed in gear ring holddown groove; A circle frame is fixed respectively in the both sides of each main beam and secondary crossbeam.Use drum framework of drum strainer mounting method of the present invention, the difficulty setting up auxiliary foot hand cradle reduces, and the frequency of climbing scaffold is low, has ensured the personal safety of constructor, and mounting means is easy to control, and uses manpower and material resources sparingly, improves operating efficiency.
Description
Technical field
The present invention relates to the mounting method of nuclear power plant equipment, particularly relate to a kind of tympanic bone frame mounting method of seawater circulation water drum type filter screen.
Background technology
PX factory building seawater circulation water CRF system has 4 drum type filter screens, and every platform drum type filter screen all comprises a rotatable Shell drum skeleton.Tympanic bone frame is made up of components such as king spoke, main beam, secondary crossbeam, secondary spoke, circumferential connecting angle, installation gear ring holddown groove, bull gear and frames, all with bolts between each component, this tympanic bone frame is supported by two wheel hubs be arranged on main shaft.
The drum framework of drum strainer mounting method that producer provides is:
The first step, assembles all king spokes and assembly (being bolted to connection by king spoke and main beam) thereof respectively, assembles all secondary spokes and assembly (being bolted to connection by secondary spoke and secondary crossbeam) thereof respectively;
Second step, uses crane the 1st king spoke and assembly (hereinafter referred to as part 1) thereof to be lifted to main shaft, and with being bolted on the wheel hub at main shaft two ends; To the slow jenny in hoist engine direction, make part 1 drive main shaft to rotate, by wire rope, part 1 is fixed on hoist engine when part 1 is near hoist engine; Crane is used the 2nd king spoke and assembly (hereinafter referred to as part 2) thereof to be lifted to main shaft, but be not connected with wheel hub, part 1 spoke bundlees a rope, rope Chain block is stretched in the other direction to hoist engine, till the Kong Weiyu part 2 spoke connecting hole position of wheel hub mounting means 2 overlaps, with bolt, part 2 is fastened on wheel hub, then part 1 is connected with tube connector with part 2; Part 2 is taken off from crane, and the rope on Chain block is unclamped gradually, start hoist engine and slowly to lengthen wire rope, make part 1 and 2 to hoist engine lopsidedness, suspend hoist engine when part 1 arrives immediately below bottommost vertical down position and main shaft; 3rd king spoke and assembly (hereinafter referred to as part 3) thereof are lifted to main shaft, and with being bolted on the wheel hub at main shaft two ends, then start hoist engine and continue the wire rope that lengthens, hoist engine is suspended when part 2 is in vertical down position, 4th king spoke and assembly (hereinafter referred to as part 4) thereof are lifted to main shaft, and with being bolted on the wheel hub at main shaft two ends, the tube connector then between installed part 3 and part 4; Start hoist engine, part 3 and part 4 are rotated to basin bottom, make part 1 the shortest with the distance of hoist engine simultaneously, suspend hoist engine, 5th king spoke and assembly (hereinafter referred to as part 5) thereof are lifted to main shaft, and with being bolted on the wheel hub at main shaft two ends, then part 2 and part 5 are coupled together with tube connector; Rotate hoist engine, make part 5 forward basin bottom vertical down position to, the 6th king spoke and assembly (hereinafter referred to as part 6) thereof are installed and tube connector between installed part 4 and 6 in the other direction at it; Then according to above-mentioned steps, in the other direction, next king spoke and assembly thereof are installed at it after installing a king spoke and assembly thereof, and adjacent two king spokes and assembly tube connector thereof are coupled together;
3rd step, installs secondary spoke and assembly thereof in the middle part of tube connector, installs next secondary spoke and assembly thereof after installing a secondary spoke and assembly thereof at it in the other direction, and multiple rotary is also symmetrical to be installed until all secondary spokes and assembly thereof install;
4th step, is fixedly installed gear ring holddown groove in the top middle portion of each main beam and secondary crossbeam, is fixed on by gear ring in this gear ring holddown groove; Circumferential connecting angle is symmetricly set on gear ring holddown groove both sides, and successively through each main beam and secondary crossbeam inside, and with bolt, circumferential connecting angle is fixed with each main beam and secondary crossbeam; A circle frame is fixed respectively in the both sides of each main beam and secondary crossbeam.
Use the mounting method that provides of producer, owing to installing the pond depth of drum type filter screen up to more than 20 meters, therefore each Components installation all belongs to work high above the ground, and installation component is many and be bolt and connect, and the method needs symmetrical rotary to install simultaneously.Auxiliary like this scaffold building difficulty of installing, construction climbing scaffold frequency is high, greatly increases the safety hazard of constructor; King spoke first installs main beam, now, when king spoke is installed on wheel hub, has only connected by bolt, easily occurred top-heavy situation, and connected not between each component, be prone to accidents; In addition rotate continually and symmetry installation, difficulty controls, and suspension centre is changed, dislodging hook is difficult, dangerous, and each component of equipment is yielding; Too increase the danger factor of equipment simultaneously, the manpower and materials of at substantial are installed like this, and there is sizable personnel, device security risk, inefficiency, serious engineering constraint progress.
Summary of the invention
In order to solve existing mounting method, to there is installation difficulty high, and the problems such as safety factor is low, inefficiency, the present invention proposes a kind of drum framework of drum strainer mounting method, and the method comprises the steps:
The first step, is arranged on all king spoke orders on wheel hub, and is coupled together by connector between adjacent two king spokes; A secondary spoke and a secondary crossbeam are assembled, forms secondary spoke group, make the secondary spoke of each root is fixedly connected with a secondary crossbeam;
Second step, the 1st king spoke directly over main shaft installs main beam, installs the king spoke of main beam be called the 1st king spoke by this first, and a king spoke adjacent with the 1st king spoke is referred to as the 2nd king spoke, by that analogy; Then use hoist engine to draw, make the 2nd king spoke adjacent with the 1st king spoke rotate to main shaft, then an installation main beam on the 2nd king spoke; Use hoist engine to carry out opposite direction draw and rotate described wheel hub, the connector of connection the 1st king spoke and the 2nd king spoke is horizontal, then the 1st group of secondary spoke group is lifted to this connector, and described secondary spoke group is arranged on the middle part of described connector, the secondary spoke group that first is installed is called the 1st group of secondary spoke group, secondary spoke in this spoke group is called the 1st secondary spoke, by that analogy; Finally with circumferential connecting angle, the secondary crossbeam on the main beam on the 1st king spoke, the 1st secondary spoke, the main beam on the 2nd king spoke are connected in turn;
3rd step, rotate described wheel hub, connector for connecting the 2nd king spoke and the 3rd king spoke is horizontal, then the 2nd group of secondary spoke group is lifted to this connector, and this secondary spoke group is arranged on the middle part of described connector, with described circumferential connecting angle, the main beam on the secondary crossbeam on the 2nd secondary spoke and the 3rd king spoke is coupled together afterwards; Repeat above-mentioned steps, until all secondary spoke groups are all installed, and use described circumferential connecting angle according to " main beam-secondary crossbeam-main beam-... " order described main beam and secondary crossbeam are all together in series, one end of described circumferential connecting angle on the last main beam with being located on the 1st king spoke couples together, and forms loop configuration;
4th step, after all secondary spoke groups install, is fixedly connected on the top middle portion of described each main beam and secondary crossbeam ringwise by gear ring holddown groove, and is fixed on by gear ring in described gear ring holddown groove; A circle frame is fixed respectively in the both sides of described each main beam and secondary crossbeam.
Use drum framework of drum strainer mounting method of the present invention, the frequency that constructor climbs auxiliary foot hand cradle is lower, reduces the problem that personal injury appears in constructor in work progress.Simultaneously, employing order mounting means between each component of drum framework of drum strainer, be easy to control, and without the need to repeatedly changing suspension centre, infrequently using other auxiliary traction equipment such as Chain block, reduce construction risk and decrease material resources service condition, ensure the personal safety of constructor largely, save a large amount of manpower and materials, improve operating efficiency, accelerate the progress of engineering.
Preferably, the number of described circumferential connecting angle is at least two, and described main beam, secondary crossbeam are symmetric.At least two described circumferential connecting angles are set, can ensure that described main beam and the relative position of secondary crossbeam in rotation process remain unchanged, ensure that the stability of drum type filter screen, the safety problem that the distortion avoiding component relative position brings nuclear power generating equipment.
Preferably, in drum net both sides, pond, multiple suspension centre is set, multiple suspension centre is set to carry out the lifting of component, effectively can control single component or assembled component because of deadweight produce rotation and distortion, decrease the step that constructor corrects the relative position of the component rotated, ensure that the stability of each component in this drum type filter screen, avoid element structure and be out of shape the safety problem that nuclear power generating equipment is brought.
Preferably, while the described secondary spoke group of lifting, use the described secondary spoke group of jack traction, enable described secondary spoke group snap into place, and larger swing can not be there is, avoid described secondary spoke group and the problem causing distortion or constructor is caused to personal injury occurs to swing in hoisting process.
Further, when described secondary spoke group is installed, carry out strut rail with shaped steel across the pond of described installation drum type filter screen and be assembled in the component such as king spoke or secondary spoke on described wheel hub, avoid, installing the problems such as wheel hub deflects described in the process of described secondary spoke group, having ensured carrying out smoothly of installation process.
Accompanying drawing explanation
Fig. 1 is the front view of the drum framework of drum strainer installed;
Fig. 2 is the lateral view of the drum framework of drum strainer installed;
Fig. 3 is the sectional view in A-A cross section in Fig. 1, i.e. king spoke and be arranged on the sectional view of the component on king spoke, and wherein, the circumferential connecting angle be arranged on main beam is removed and intercepts part signal;
Fig. 4 is the sectional view in B-B cross section in Fig. 1, i.e. secondary spoke and be arranged on the sectional view of the component on secondary spoke, and wherein, the circumferential connecting angle be arranged on secondary crossbeam is removed and intercepts part signal.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, a kind of drum framework of drum strainer mounting method, the method comprises the steps:
The first step, is arranged on all king spoke 2 orders on the wheel hub 11 of main shaft 1, and is coupled together by connector 22 between adjacent two king spokes 2; A secondary spoke 31 and a secondary crossbeam 32 are assembled, forms one group of secondary spoke group 3, make the secondary spoke 31 of each root is fixedly connected with a secondary crossbeam 32;
Second step, the king spoke directly over main shaft is installed main beam 21, installs the king spoke of main beam be called the 1st king spoke by this first, and a king spoke adjacent with the 1st king spoke is referred to as the 2nd king spoke, by that analogy.Use hoist engine (not shown) to draw the 1st king spoke, the 2nd king spoke is rotated to main shaft 1, then on the 2nd king spoke, main beam 21 is installed, re-use hoist engine and carry out opposite direction traction and rotary hub 11, the connector 22 of connection the 1st king spoke and the 2nd king spoke is horizontal, then shaped steel is passed two adjacent king spokes across on the pond of installing drum type filter screen, the wheel hub 11 when installing secondary spoke group 3 is avoided to rotate, thus avoid the component such as king spoke 2 grade be arranged on wheel hub 11 to rotate, again 1 group of secondary spoke group 3 is lifted to the 1st connector 22, the secondary spoke group that first is installed is called the 1st group of secondary spoke group, secondary spoke in this spoke group is called the 1st secondary spoke, by that analogy.Use Chain block to draw the 1st group of secondary spoke group 3 simultaneously, the 1st group of secondary spoke group 3 can be stablized and promptly in place, and the 1st group of secondary spoke group 3 is arranged on the middle part of this connector 22, as shown in Figures 3 and 4, the angle steel spacing hole 41 that main beam and secondary crossbeam are arranged is passed afterwards with circumferential connecting angle 4, by the main beam on the 1st king spoke, main beam on secondary crossbeam on 1st secondary spoke and the 2nd king spoke is connected in turn, the number of the circumferential connecting angle 4 shown in figure is 4, and be symmetric, ensure that main beam 21 and the relative position of secondary crossbeam 32 in rotation process remain unchanged, ensure that the stability of drum type filter screen, avoid main beam, the safety problem that the distortion of the component relative positions such as secondary crossbeam brings nuclear power generating equipment, natch, the number of circumferential connecting angle 4 also can for other be not less than 2 integer, as long as ensure that each circumferential connecting angle 4 can be symmetric,
3rd step, rotary hub 11, connector 22 for connecting the 2nd king spoke 2 and the 3rd king spoke 2 is horizontal, then the 2nd group of secondary spoke group 3 is lifted to this connector 22, and the 2nd group of secondary spoke group 3 is arranged on the middle part of this connector 22, with circumferential connecting angle 4, the main beam 21 on the secondary crossbeam 32 on the 2nd secondary spoke 31 and the 3rd king spoke 2 is coupled together afterwards; Repeat above-mentioned steps, until all secondary spoke groups 3 are all installed, and use circumferential connecting angle 4 according to " main beam 21-secondary crossbeam 32-main beam 21-... " order all main beams 21 and secondary crossbeam 32 are together in series, and the end of this circumferential connecting angle 4 couples together with the head end fixed end through the circumferential connecting angle 4 on the main beam 21 on the 1st king spoke 2, form the circumferential connecting angle 4 of a loop configuration, then with bolt, circumferential connecting angle 4 is coupled together with each master/slave crossbeam;
4th step, after all secondary spoke groups 3 install, one end of gear ring holddown groove 5 is fixedly connected on the top middle portion of the main beam 21 on the 1st king spoke 2, then according to " main beam 21-secondary crossbeam 32-main beam 21-... " order gear ring holddown groove 5 is arranged on ringwise the top middle portion of all main beams 21 and secondary crossbeam 32, and gear ring 51 is fixed in gear ring holddown groove 5; A circle frame 6 is fixed respectively in the both sides of each main beam 21 and secondary crossbeam 32.
Preferably, in drum net both sides, pond, multiple suspension centre is set, multiple suspension centre is set to carry out the lifting of component, effectively can control single component or assembled component because of deadweight produce rotation and distortion, decrease the step that constructor corrects the relative position of the component rotated, ensure that the stability of each component in this drum type filter screen, avoid element structure and be out of shape the safety problem that nuclear power generating equipment is brought.
Use drum framework of drum strainer mounting method of the present invention, the frequency that constructor climbs auxiliary foot hand cradle is lower, reduces the problem that personal injury appears in constructor in work progress.Simultaneously, employing order mounting means between each component of drum framework of drum strainer, be easy to control, and without the need to repeatedly changing suspension centre, infrequently using other auxiliary traction equipment such as Chain block, reduce construction risk and decrease material resources service condition, ensure the personal safety of constructor largely, save a large amount of manpower and materials, improve operating efficiency, accelerate the progress of engineering.
Claims (5)
1. a drum framework of drum strainer mounting method, the method comprises the steps:
The first step, is arranged on all king spoke orders on wheel hub, and is coupled together by connector between adjacent two king spokes; A secondary spoke and a secondary crossbeam are assembled, forms one group of secondary spoke group;
Second step, the 1st king spoke directly over main shaft installs main beam, then uses hoist engine to draw, and makes the 2nd piece king spoke adjacent with the 1st king spoke rotate to main shaft, then on the 2nd king spoke, installs main beam; Continue to use hoist engine carry out drawing and rotate described wheel hub in the other direction, the connector of connection the 1st king spoke and the 2nd king spoke is horizontal, then the 1st group of secondary spoke group is lifted to this connector, and described secondary spoke group is arranged on the middle part of described connector; Finally with circumferential connecting angle, the secondary crossbeam on the main beam on the 1st king spoke, the 1st secondary spoke, the main beam on the 2nd king spoke are connected in turn;
3rd step, rotate described wheel hub, connector for connecting the 2nd king spoke and the 3rd king spoke is horizontal, then the 2nd group of secondary spoke group is lifted to this connector, and this secondary spoke group is arranged on the middle part of described connector, with described circumferential connecting angle, the main beam on the secondary crossbeam on the 2nd secondary spoke and the 3rd king spoke is coupled together afterwards; Repeat above-mentioned steps, until all secondary spoke groups installed;
4th step, after all secondary spoke groups install, is fixedly connected on the top middle portion of described each main beam and secondary crossbeam ringwise by gear ring holddown groove, and is fixed on by gear ring in described gear ring holddown groove; A circle frame is fixed respectively in the both sides of described each main beam and secondary crossbeam.
2. drum framework of drum strainer mounting method according to claim 1, is characterized in that, the number of described circumferential connecting angle is at least two, and described main beam, secondary crossbeam are symmetric.
3. drum framework of drum strainer mounting method according to claim 1, is characterized in that, arranges multiple suspension centre in the both sides, pond of installing drum type filter screen.
4. drum framework of drum strainer mounting method according to claim 3, is characterized in that, while the described secondary spoke group of lifting, uses the described secondary spoke group of Chain block traction, enables described secondary spoke group snap into place.
5. drum framework of drum strainer mounting method according to claim 4, it is characterized in that, when described secondary spoke group is installed, carrys out strut rail with shaped steel across the pond of described installation drum type filter screen and be assembled in king spoke on described wheel hub or secondary spoke, avoid described wheel hub to deflect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410013636.XA CN103758354B (en) | 2014-01-10 | 2014-01-10 | Drum framework of drum strainer mounting method |
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|---|---|---|---|
| CN201410013636.XA CN103758354B (en) | 2014-01-10 | 2014-01-10 | Drum framework of drum strainer mounting method |
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| CN103758354A CN103758354A (en) | 2014-04-30 |
| CN103758354B true CN103758354B (en) | 2016-03-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115405106A (en) * | 2021-05-28 | 2022-11-29 | 中国核工业二三建设有限公司 | Method for fixing first framework of nuclear power drum filter screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201711027U (en) * | 2010-06-10 | 2011-01-19 | 今创集团有限公司 | Drum type filter screen |
| CN102701066A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Hoisting method for hoisting assembling module of large container |
| CN103015737A (en) * | 2012-12-28 | 2013-04-03 | 中国核工业第五建设有限公司 | Method for mounting steel containment cofferdam of nuclear power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3700012B2 (en) * | 1996-04-03 | 2005-09-28 | 株式会社竹中工務店 | Constraining system for the end of a steel-framed large roof during earthwork |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201711027U (en) * | 2010-06-10 | 2011-01-19 | 今创集团有限公司 | Drum type filter screen |
| CN102701066A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Hoisting method for hoisting assembling module of large container |
| CN103015737A (en) * | 2012-12-28 | 2013-04-03 | 中国核工业第五建设有限公司 | Method for mounting steel containment cofferdam of nuclear power plant |
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