CN103964309B - The installation method of duplex low pressure heater - Google Patents

The installation method of duplex low pressure heater Download PDF

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Publication number
CN103964309B
CN103964309B CN201410195183.7A CN201410195183A CN103964309B CN 103964309 B CN103964309 B CN 103964309B CN 201410195183 A CN201410195183 A CN 201410195183A CN 103964309 B CN103964309 B CN 103964309B
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China
Prior art keywords
low pressure
pressure heater
duplex low
suspension centre
duplex
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Application number
CN201410195183.7A
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Chinese (zh)
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CN103964309A (en
Inventor
张开峰
孙勇
郭念全
丁元志
杨捷智
岳远来
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山东电力建设第二工程公司
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Priority to CN201410195183.7A priority Critical patent/CN103964309B/en
Publication of CN103964309A publication Critical patent/CN103964309A/en
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Publication of CN103964309B publication Critical patent/CN103964309B/en

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Abstract

The invention discloses a kind of installation method of duplex low pressure heater, comprise the following steps: (1) center of gravity is determined; (2) two suspension centre is determined: according to duplex low pressure heater center-of-gravity position, determine major and minor suspension centre, and secondary suspension centre is greater than the distance of main suspension centre to center of gravity to the distance of center of gravity; (3) detection is hung in examination; (4) tilt to install: duplex low pressure heater is penetrated condenser connection from low pressure cylinder upper angled; (5) installation in position: as required by hanging apparatus centering, installation in position.The present invention, compared with conventional construction method, does not need to set up delivery platform in addition, both can realize installing of duplex low pressure heater in place by means of only hanging apparatus, 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.

Description

The installation method of duplex low pressure heater

Technical field

The present invention relates to equipment field engineering field, particularly relate 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 platform condenser.Conventional construction method adopts and setting up delivery platform outside the platform of main building A side, be transported to above condenser side plate by duplex low pressure heater from A side platform outer bracket, then carry out installation in position by main driving cooperation, one is that installation effectiveness is low, labor strength is large, is unfavorable for improving operating efficiency; Two is need to set up delivery platform, and 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 installation method that is safe, efficient, controlled, economic, 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: calculate the equipment center of gravity determining duplex low pressure heater;

(2) two suspension centre is determined: according to duplex low pressure heater center-of-gravity position, determine major and minor suspension centre, and secondary suspension centre is greater than the distance of main suspension centre to center of gravity to the distance of center of gravity, by controlling the angle of inclination of major and minor suspension centre adjustment duplex low pressure heater;

(3) detection is hung in examination: being sling by duplex low pressure heater departs from bearing surface a little, checks hanging apparatus and suspension centre stressing conditions; Then after the duplex low pressure heater that continues to sling rises to certain altitude, slowly the secondary suspension centre of landing, makes 22 ~ 26 °, angle of inclination, checks hanging apparatus and suspension centre stressing conditions, 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, continue to decline secondary suspension centre to duplex low pressure heater inclination 22 ~ 26 °, the hanging apparatus side downward towards inclination angle is moved, after duplex low pressure heater entirety enters low pressure cylinder steam drain, main, secondary suspension centre entire lowering simultaneously, hanging apparatus continues the side slowly movement downward to inclination angle simultaneously, to described duplex low pressure heater near condenser connection place, then centered by original center of gravity, rotate ° inclination angle, duplex low pressure heater to 5 ~ 8, continue entire lowering to the close condenser side plate strong point, again duplex low pressure heater is rotated and be 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, when 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 delivery platform in addition, both can realize installing of duplex low pressure heater in place by means of only hanging apparatus, 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.

Accompanying drawing explanation

The following drawings is only intended to schematically illustrate the present invention 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 view that embodiment of the present invention duplex low pressure heater tries when hanging;

Fig. 3 is the view of embodiment of the present invention duplex low pressure heater when winching to low pressure cylinder steam drain;

Fig. 4 is the view that embodiment of the present invention duplex low pressure heater is adjusted to when installing angle;

Fig. 5 is the view of embodiment of the present invention duplex low pressure heater when installing above condenser connection;

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-drives a vehicle; 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, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.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 as follows:

(1) center of gravity is determined: the equipment center of gravity 2 determining duplex low pressure heater.

(2) steel rope and two suspension centre are determined: duplex low pressure heater 1 is penetrated condenser connection from low pressure cylinder top, need installing process medium dip certain angle, therefore use driving size hook to coordinate lifting, install object to reach.

With hook 3(280t) be main suspension centre, little hook (50t) 4 is secondary suspension centre.Main suspension centre drive a vehicle as calculated at center of gravity 21 meter, platform 9 place, B side partially, and secondary suspension centre is at 4 meters, platform 8 place, center of gravity inclined A side.

(3) examination hang detection: driving sling duplex low pressure heater 1 about 200mm time, check steel rope, suspension centre stressing conditions, confirm errorless after, use gas cutting 7 temporary supports are removed.Note not hurting equipment.After temporary support is removed, careful commander drives a vehicle and 5 to sling duplex low pressure heater 1 about 9 meters, and driving 5 slowly declines 2 meters, little hooks, and now duplex low pressure heater 1 tilts about 24 °.Check steel rope and duplex low pressure heater 1 stressing conditions.Slowly pack up little hook after static 3 minutes, 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, continue little hook 4 to the duplex low pressure heater 1 of decline and tilt 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 (distance foundation bottom is about 150mm), driving decline duplex low pressure heater 1, until duplex low pressure heater 1 is about 380mm by platform end bottom, A side close to the condenser side plate strong point; Driving continues to A side platform sport car, until duplex low pressure heater 1 is about 200mm by A side platform end apart from basic lower surface; Continue decline duplex low pressure heater 1 about 800mm; Commander's driving advances 1.8 meters to A side platform; Continue entire lowering duplex low pressure heater 1 about 800mm; Traveling crane moves duplex low pressure heater 1 to about 1.7 meters, A side platform sport car; Entire lowering duplex low pressure heater 1 about 700mm afterwards, is about 400mm apart from condenser side plate.Center is labeled as with original center of gravity 2, rotate duplex low pressure heater 1 to inclination 16 °, driving again to A side platform advance until duplex low pressure heater 1 vapor interface close condenser side plate time, be labeled as center with original center of gravity 2, rotate duplex low pressure heater 1 to inclination 7 ° of angles.Continue entire lowering duplex low pressure heater 1 until by the A side platform end distance condenser side plate strong point 10 place 200mm, with duplex low pressure heater 1 line of centers mid point for axle, utilize driving to rotate duplex low pressure heater 1 to level attitude.Advance to B side platform after duplex low pressure heater 1 entire lowering is about 400mm, the cervical branch support 7 that connects of duplex low pressure heater 1 is aligned with condenser connection.Installing in process, controlling the distance of duplex low pressure heater 1 low side and Turbine Engine Foundation, ensureing normally to install.

(5) installation in position: utilize driving by duplex low pressure heater 1 centering as required, be fitted in place on condenser side plate.

More than show and describe 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; what describe in above-described embodiment and specification sheets 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.Application claims protection domain 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: calculate the equipment center of gravity determining duplex low pressure heater;
(2) two suspension centre is determined: according to duplex low pressure heater center-of-gravity position, determine major and minor suspension centre, and secondary suspension centre is greater than the distance of main suspension centre to center of gravity to the distance of center of gravity, by controlling the angle of inclination of major and minor suspension centre adjustment duplex low pressure heater;
(3) detection is hung in examination: being sling by duplex low pressure heater departs from bearing surface a little, checks hanging apparatus and suspension centre stressing conditions; Then after the duplex low pressure heater that continues to sling rises to certain altitude, slowly the secondary suspension centre of landing, makes 22 ~ 26 °, angle of inclination, checks hanging apparatus and suspension centre stressing conditions, 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, continue to decline secondary suspension centre to duplex low pressure heater inclination 22 ~ 26 °, the hanging apparatus side downward towards inclination angle is moved, after duplex low pressure heater entirety enters low pressure cylinder steam drain, main, secondary suspension centre entire lowering simultaneously, hanging apparatus continues the side slowly movement downward to inclination angle simultaneously, to described duplex low pressure heater near condenser connection place, then centered by original center of gravity, rotate ° inclination angle, duplex low pressure heater to 5 ~ 8, continue entire lowering to the close condenser side plate strong point, again duplex low pressure heater is rotated and be 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: when controlling the angle of inclination of major and minor suspension centre adjustment duplex low pressure heater, ensure angle of inclination≤30 °.
CN201410195183.7A 2014-05-09 2014-05-09 The installation method of duplex low pressure heater CN103964309B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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
CN201410195183.7A CN103964309B (en) 2014-05-09 2014-05-09 The installation method of duplex low pressure heater

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CN103964309B true CN103964309B (en) 2015-09-09

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201240771Y (en) * 2008-07-25 2009-05-20 中铁十局集团有限公司 System for hoisting reinforcement cage
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011079634A (en) * 2009-10-07 2011-04-21 Hitachi Plant Technologies Ltd Hoisting device of heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201240771Y (en) * 2008-07-25 2009-05-20 中铁十局集团有限公司 System for hoisting reinforcement cage
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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