CN103964309A - Mounting method of duplex low-pressure heater - Google Patents
Mounting method of duplex low-pressure heater Download PDFInfo
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- CN103964309A CN103964309A CN201410195183.7A CN201410195183A CN103964309A CN 103964309 A CN103964309 A CN 103964309A CN 201410195183 A CN201410195183 A CN 201410195183A CN 103964309 A CN103964309 A CN 103964309A
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- pressure heater
- low pressure
- duplex low
- duplex
- suspension centre
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Abstract
The invention discloses a mounting method of a duplex low-pressure heater. The mounting method comprises the following steps: (1) gravity center determination; (2) dual-hoist-point determination, namely determining a main hoist point and an auxiliary hoist point according to the position of the gravity center of the duplex low-pressure heater, wherein the distance from the auxiliary hoist point to the gravity center is larger than that from the main hoist point to the gravity center; (3) trial-hoisting test; (4) oblique insertion, namely obliquely inserting the duplex low-pressure heater into a connecting neck of a condenser from the upper part of a low-pressure cylinder; and (5) in-place mounting, namely carrying out centering by virtue of a hoisting device according to the requirement so as to mount the duplex low-pressure heater in place. Compared with a traditional construction method, the mounting method has the advantages that a conveying platform does not need to be additionally built, the in-place insertion of the duplex low-pressure heater can be realized only by virtue of the hoisting device, the construction efficiency is high, the mounting cost is low, a mounting process is safe and rapid, and an in-place mounting problem of large-scale duplex low-pressure heater is effectively solved.
Description
Technical field
The present invention relates to equipment field engineering field, relate in particular to a kind of installation method of 1,000,000 nuclear power Siemens technique condenser duplex low pressure heaters.
Background technology
1000000 nuclear power Siemens technique condensers are always divided into two independently condensers, place a duplex low pressure heater in every condenser.Conventional construction method adopts and is setting up delivery platform outward from main building A side platform, duplex low pressure heater is transported to condenser side plate top from A side platform outer bracket, then coordinates and carry out installation in position by main driving, the one, installation effectiveness is low, labor strength is large, is unfavorable for improving operating efficiency; The 2nd, need to set up delivery platform, its cost of installation is higher, is unfavorable for saving production cost.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of safe, efficient, controlled, economic, installation method of duplex low pressure heater easily.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The installation method of duplex low pressure heater, comprises the following steps:
(1) center of gravity is determined: the equipment center of gravity of calculative determination duplex low pressure heater;
(2) two suspension centres are determined: according to duplex low pressure heater center-of-gravity position, determine major and minor suspension centre, secondary suspension centre to the distance of center of gravity is greater than main hoisting puts the distance of center of gravity, adjusts the angle of inclination of duplex low pressure heater by controlling major and minor suspension centre;
(3) detection is hung in examination: duplex low pressure heater is sling and departed from a little bearing surface, check hanging apparatus and suspension centre stressing conditions; Then the duplex low pressure heater that continues to sling rises to after certain altitude, and the secondary suspension centre that slowly lands makes 22～26 °, angle of inclination, checks hanging apparatus and suspension centre stressing conditions, and static 2～5min, slowly promotes secondary suspension centre, keeps duplex low pressure heater level;
(4) tilt to install: first duplex low pressure heater is tilted 16～20 °, slowly put into low pressure cylinder steam drain, secondary suspension centre to the duplex low pressure heater that continues to decline tilts 22～26 °, the side shifting that hanging apparatus is downward towards inclination angle, duplex low pressure heater entirety enters after low pressure cylinder steam drain, main, secondary suspension centre simultaneously entirety declines, to inclination angle, a downward side slowly moves in hanging apparatus continuation simultaneously, extremely described duplex low pressure heater is near condenser connection place, then centered by original center of gravity, rotation ° inclination angle, duplex low pressure heater to 5～8, continuing entirety drops near the condenser side plate strong point, again the rotation of duplex low pressure heater is adjusted to level attitude, hanging apparatus, to opposite side travelling backwards, makes the cervical branch support that connects of duplex low pressure heater align with condenser connection,
(5) installation in position: as required by hanging apparatus centering, installation in position.
As preferred technical scheme, while controlling the angle of inclination of major and minor suspension centre adjustment duplex low pressure heater, ensure angle of inclination≤30 °.
The present invention, compared with conventional construction method, does not need to set up in addition delivery platform, only both can realize installing of duplex low pressure heater by hanging apparatus in place, operating efficiency is high, cost of installation is low, safely, fast, efficiently solves a difficult problem for duplex low pressure heater main equipment installation in position.
brief description of the drawings
The following drawings is only intended to the present invention to schematically illustrate and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of embodiment of the present invention duplex low pressure heater;
Fig. 2 is the embodiment of the present invention duplex low pressure heater examination view while hanging;
Fig. 3 is the view of embodiment of the present invention duplex low pressure heater while winching to low pressure cylinder steam drain;
Fig. 4 is that embodiment of the present invention duplex low pressure heater is adjusted to the view while installing angle;
Fig. 5 is that embodiment of the present invention duplex low pressure heater installs to the condenser connection view in when top;
View when Fig. 6 is embodiment of the present invention duplex low pressure heater installation in position.
In figure: 1-duplex low pressure heater; 2-center of gravity; 3-hook; The little hook of 4-; 5-driving; 6-low pressure cylinder steam drain; 7-connects cervical branch support; 8-A side platform; 9-B side platform; The 10-strong point.
Detailed description of the invention
Below in conjunction with drawings and Examples, further set forth the present invention.In the following detailed description, only by the mode of explanation, some example embodiment of the present invention has been described.Undoubtedly, those of ordinary skill in the art can recognize, without departing from the spirit and scope of the present invention in the situation that, can revise described embodiment by various mode.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
Embodiment: as shown in Figures 1 to 6, duplex low pressure heater 1, long 23650mm, high 2695mm, wide 2710mm, substance 94t.
Main construction procedure and correlation computations are as follows:
(1) center of gravity is determined: the equipment center of gravity 2 of determining duplex low pressure heater.
(2) steel rope and two suspension centre are determined: duplex low pressure heater 1 is penetrated to condenser connection from low pressure cylinder top, need to install process medium dip certain angle, therefore use the big or small hook of driving to coordinate lifting, install object to reach.
Taking hook 3(280t) be main hoisting point, little hook (50t) 4 is secondary suspension centre.The main hoisting of driving a vehicle as calculated point is at 1 meter, the inclined to one side B side platform of center of gravity 29 place, and secondary suspension centre is at 4 meters, the inclined to one side A side of center of gravity platform 8 place.
(3) detection is hung in examination: when duplex low pressure heater 1 about 200mm is sling in driving, check steel rope, suspension centre stressing conditions, confirm errorless after, use gas cutting that 7 temporary supports are removed.Note not hurting equipment.After temporary support is removed, careful commander 5 sling approximately 9 meters of the duplex low pressure heaters 1 of driving a vehicle, 2 meters, the little hook of driving 5 slow decreasing, now duplex low pressure heater 1 tilts approximately 24 °.Check steel rope and duplex low pressure heater 1 stressing conditions.After static 3 minutes, slowly pack up little hook, keep duplex low pressure heater 1 level.Hang in process at duplex low pressure heater 1 inclined test, occur that any steel cable sliding must stop operation immediately and carry out the reinforcing of suspension centre.
(4) tilt to install: first duplex low pressure heater is tilted 18 °, slowly put into low pressure cylinder exhausr port 6, until by the nearly Turbine Engine Foundation of A side platform termination, little hook 4 to the duplex low pressure heater 1 that continues to decline tilts 24 °, driving is to A side platform movement, until duplex low pressure heater 1 is by the nearly Turbine Engine Foundation of A side platform termination (apart from the about 150mm of foundation bottom), driving decline duplex low pressure heater 1, until duplex low pressure heater 1 approaches the about 380mm of the condenser side plate strong point by A side platform end bottom; Driving continues to A side platform sport car, until duplex low pressure heater 1 leans on A side platform end apart from the about 200mm of basic lower surface; Continue decline duplex low pressure heater 1 about 800mm; Commander's driving is advanced 1.8 meters to A side platform; Continue overall decline duplex low pressure heater 1 about 800mm; The moving duplex low pressure heater 1 of traveling crane is to approximately 1.7 meters, A side platform sport car; Overall decline duplex low pressure heater 1 about 700mm afterwards, apart from the about 400mm of condenser side plate.Be labeled as center with original center of gravity 2, rotation duplex low pressure heater 1 is to tilting 16 °, driving is advanced until duplex low pressure heater 1 vapor interface during near condenser side plate, is labeled as center with original center of gravity 2 to A side platform again, and rotation duplex low pressure heater 1 is to the 7 ° of angles that tilt.Continue overall decline duplex low pressure heater 1 until lean on A side platform end apart from the condenser side plate strong point 10 200mm of place, taking duplex low pressure heater 1 line of centers mid point as axle, utilize driving rotation duplex low pressure heater 1 to level attitude.The backward B side of the duplex low pressure heater 1 entirety about 400mm of decline platform is advanced, the cervical branch support 7 that connects of duplex low pressure heater 1 is aligned with condenser connection.Installing in process, control the distance of duplex low pressure heater 1 low side and Turbine Engine Foundation, ensure normally to install.
(5) installation in position: utilize as required and drive a vehicle duplex low pressure heater 1 centering, be fitted in place on condenser side plate.
More than show and described groundwork of the present invention, principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. the installation method of duplex low pressure heater, is characterized in that, comprises the following steps:
(1) center of gravity is determined: the equipment center of gravity of calculative determination duplex low pressure heater;
(2) two suspension centres are determined: according to duplex low pressure heater center-of-gravity position, determine major and minor suspension centre, secondary suspension centre to the distance of center of gravity is greater than main hoisting puts the distance of center of gravity, adjusts the angle of inclination of duplex low pressure heater by controlling major and minor suspension centre;
(3) detection is hung in examination: duplex low pressure heater is sling and departed from a little bearing surface, check hanging apparatus and suspension centre stressing conditions; Then the duplex low pressure heater that continues to sling rises to after certain altitude, and the secondary suspension centre that slowly lands makes 22～26 °, angle of inclination, checks hanging apparatus and suspension centre stressing conditions, and static 2～5min, slowly promotes secondary suspension centre, keeps duplex low pressure heater level;
(4) tilt to install: first duplex low pressure heater is tilted 16～20 °, slowly put into low pressure cylinder steam drain, secondary suspension centre to the duplex low pressure heater that continues to decline tilts 22～26 °, the side shifting that hanging apparatus is downward towards inclination angle, duplex low pressure heater entirety enters after low pressure cylinder steam drain, main, secondary suspension centre simultaneously entirety declines, to inclination angle, a downward side slowly moves in hanging apparatus continuation simultaneously, extremely described duplex low pressure heater is near condenser connection place, then centered by original center of gravity, rotation ° inclination angle, duplex low pressure heater to 5～8, continuing entirety drops near the condenser side plate strong point, again the rotation of duplex low pressure heater is adjusted to level attitude, hanging apparatus, to opposite side travelling backwards, makes the cervical branch support that connects of duplex low pressure heater align with condenser connection,
(5) installation in position: as required by hanging apparatus centering, installation in position.
2. the installation method of duplex low pressure heater as claimed in claim 1, is characterized in that: while controlling the angle of inclination of major and minor suspension centre adjustment duplex low pressure heater, ensure angle of inclination≤30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410195183.7A CN103964309B (en) | 2014-05-09 | 2014-05-09 | The installation method of duplex low pressure heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410195183.7A CN103964309B (en) | 2014-05-09 | 2014-05-09 | The installation method of duplex low pressure heater |
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| CN103964309A true CN103964309A (en) | 2014-08-06 |
| CN103964309B CN103964309B (en) | 2015-09-09 |
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| CN201410195183.7A Active CN103964309B (en) | 2014-05-09 | 2014-05-09 | The installation method of duplex low pressure heater |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110180A (en) * | 2015-08-07 | 2015-12-02 | 中交路桥华南工程有限公司 | Method for hoisting object of asymmetrical structure |
| CN105110183A (en) * | 2015-09-01 | 2015-12-02 | 山东电力建设第一工程公司 | Special tool for assembling condenser water chambers and method thereof |
| CN105448366A (en) * | 2015-11-12 | 2016-03-30 | 中广核工程有限公司 | Nuclear power plant condenser mounting method |
| CN106448773A (en) * | 2016-12-06 | 2017-02-22 | 中广核工程有限公司 | Penetrating installation method for duplex low-pressure heater of steam condenser for nuclear power plant |
| CN111591936A (en) * | 2020-05-29 | 2020-08-28 | 中国化学工程第三建设有限公司 | Method for installing condenser with high foundation at bottom of concrete frame in plant |
| WO2021196465A1 (en) * | 2020-03-30 | 2021-10-07 | 中国电建集团山东电力建设第一工程有限公司 | Hoisting system for overweight horizontal high-pressure heater and hoisting method |
| CN113620150A (en) * | 2021-08-10 | 2021-11-09 | 中国电建集团核电工程有限公司 | Method for mounting intermediate connecting piece of condenser |
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| CN201240771Y (en) * | 2008-07-25 | 2009-05-20 | 中铁十局集团有限公司 | System for hoisting reinforcement cage |
| JP2011079634A (en) * | 2009-10-07 | 2011-04-21 | Hitachi Plant Technologies Ltd | Hoisting device of heat exchanger |
| CN102756975A (en) * | 2012-07-20 | 2012-10-31 | 天津二十冶建设有限公司 | Method for hoisting rolling mill housing |
| CN103058054A (en) * | 2012-12-27 | 2013-04-24 | 三一重工股份有限公司 | Tail device and tail dragging method |
| CN103072893A (en) * | 2013-01-17 | 2013-05-01 | 中国核工业二三建设有限公司 | Tool and device for overturning vertical equipment in nuclear power plant |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201240771Y (en) * | 2008-07-25 | 2009-05-20 | 中铁十局集团有限公司 | System for hoisting reinforcement cage |
| JP2011079634A (en) * | 2009-10-07 | 2011-04-21 | Hitachi Plant Technologies Ltd | Hoisting device of heat exchanger |
| CN102756975A (en) * | 2012-07-20 | 2012-10-31 | 天津二十冶建设有限公司 | Method for hoisting rolling mill housing |
| CN103058054A (en) * | 2012-12-27 | 2013-04-24 | 三一重工股份有限公司 | Tail device and tail dragging method |
| CN103072893A (en) * | 2013-01-17 | 2013-05-01 | 中国核工业二三建设有限公司 | Tool and device for overturning vertical equipment in nuclear power plant |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110180A (en) * | 2015-08-07 | 2015-12-02 | 中交路桥华南工程有限公司 | Method for hoisting object of asymmetrical structure |
| CN105110180B (en) * | 2015-08-07 | 2017-05-31 | 中交路桥华南工程有限公司 | The hoisting method of the asymmetric thing of structure |
| CN105110183A (en) * | 2015-09-01 | 2015-12-02 | 山东电力建设第一工程公司 | Special tool for assembling condenser water chambers and method thereof |
| CN105110183B (en) * | 2015-09-01 | 2017-05-24 | 山东电力建设第一工程公司 | Special tool for assembling condenser water chambers and method thereof |
| CN105448366A (en) * | 2015-11-12 | 2016-03-30 | 中广核工程有限公司 | Nuclear power plant condenser mounting method |
| CN105448366B (en) * | 2015-11-12 | 2018-01-23 | 中广核工程有限公司 | A kind of installation method of Nuclear Power Station Condensers |
| CN106448773A (en) * | 2016-12-06 | 2017-02-22 | 中广核工程有限公司 | Penetrating installation method for duplex low-pressure heater of steam condenser for nuclear power plant |
| WO2021196465A1 (en) * | 2020-03-30 | 2021-10-07 | 中国电建集团山东电力建设第一工程有限公司 | Hoisting system for overweight horizontal high-pressure heater and hoisting method |
| CN111591936A (en) * | 2020-05-29 | 2020-08-28 | 中国化学工程第三建设有限公司 | Method for installing condenser with high foundation at bottom of concrete frame in plant |
| CN113620150A (en) * | 2021-08-10 | 2021-11-09 | 中国电建集团核电工程有限公司 | Method for mounting intermediate connecting piece of condenser |
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|---|---|
| CN103964309B (en) | 2015-09-09 |
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Address after: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee after: POWERCHINA NUCLEAR ENGINEERING Co.,Ltd. Address before: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee before: POWERCHINA NUCLEAR ENGINEERING Co. Address after: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee after: POWERCHINA NUCLEAR ENGINEERING Co. Address before: 250100 No. 297 industrial North Road, Licheng District, Shandong, Ji'nan Patentee before: SHANDONG ELECTRIC POWER CONSTRUCTION NO.2 Co. |
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