CN105239804B - Assembly and lift-erecting method of indirect air-cooling system stretching platforms - Google Patents
Assembly and lift-erecting method of indirect air-cooling system stretching platforms Download PDFInfo
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- CN105239804B CN105239804B CN201510552349.0A CN201510552349A CN105239804B CN 105239804 B CN105239804 B CN 105239804B CN 201510552349 A CN201510552349 A CN 201510552349A CN 105239804 B CN105239804 B CN 105239804B
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Abstract
The invention discloses an assembly and lift-erecting method of an indirect air-cooling system stretching platforms. The method includes the steps of preparing before lifting; assembling stretching platforms of inter-joint units and stretching platforms of ex-joint units, and fixing slanting supports to lower portions of the stretching platforms of the inter-joint units; lifting the stretching platforms of the inter-joint units to an erection elevation, adjusting slant of the stretching platforms of the inter-joint units, and then welding the stretching platforms to tower body X-column embedded parts of an intercooling tower; adjusting the angle of the slanting supports with a lifting appliance, and welding the slanting supports to the tower body X-column embedded parts; in correspondence to the position between every two adjacent X-columns of an intercooling tower body, lifting the stretching platforms of the ex-joint units until lifting of the stretching platforms of the ex-joint units is complete; fixedly welding the stretching platforms of the adjacent inter-joint units to the stretching platforms of the ex-joint units. The ground assembly is easily operable, connecting is convenient, adjusting is convenient, danger coefficient is low, and safety is better guaranteed. The lifting cost is low, arrangement of little labor is required, and economic benefit is improved.
Description
Technical field
The present invention relates to a kind of indirect air cooling system broadening platform combination lifting installation method.
Background technology
Since indirect air cooling technology was introduced from 1993, due to the advantage that it is economized on water, obtained in arid, semiarid zone
It is fast-developing.But indirect air cooling appliance arrangement, pipeline combination installation workload are big, the optimization of installation procedure and technique is pacified to improving
Packing quality, shortening installation period, reduction construction input have very important effect.
Indirect air cooling system combination is installed first step work and is the lifting of broadening platform combination.Have good positioning X first during lifting
Ring beam, ring secondary beam, purlin are assembled after the radial direction case bay of post internode unit and manhole unit again, 50t and 25t is used during lifting
Truck crane coordinates lifting, and after 50t truck cranes lifting broadening platform to installation site, adjustment angle starts to be welded and fixed, 25t vapour
Car sling two bearing diagonals to broadening platform lower section after adjust bearing diagonal angle it is qualified with setting angle it is consistent afterwards buried with X intercolumniations
Part is welded.
During due to lifting broadening platform and bearing diagonal, belong to work high above the ground, adjustment difficulty is big when bearing diagonal is sling, high-altitude cage
Operating personnel's operating difficulties, danger coefficient increase reduces broadening platform lifting efficiency, at the same increased truck crane into
This, financial cost is high.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of indirect air cooling system broadening platform group
Lifting installation method is closed, bearing diagonal is carried out into ground adjustment, be fixedly secured on broadening platform, lifted with broadening platform combination,
Preventing it from being shaken in hoisting process causes adjustment difficult, reduces personnel's adjustment difficulty and work high above the ground danger coefficient, subtracts
Few truck crane machine-team cost.
To achieve the above object, the present invention uses following technical proposals：
A kind of indirect air cooling system broadening platform combination lifts installation method, comprises the following steps：
Step 1：Preparation before lifting：The broadening platform of the multiple internode units of assembling and the broadening of the outer unit of multiple internodes
Platform, bearing diagonal is fixed in the broadening platform lower of internode unit, and the lower end of bearing diagonal is hanging；
Step 2：The position of corresponding indirect cool tower tower body X posts, starts to lift the broadening platform of internode unit, and in internode list
Suspension hoisting device between the broadening platform and bearing diagonal of unit, lifting device tangles the hanging lower end of bearing diagonal；
Step 3：The broadening platform of internode unit is lifted to installed height mark, the broadening platform gradient of internode unit is adjusted
The broadening platform of internode unit and the first built-in fitting of indirect cool tower tower body X posts are welded afterwards；
Step 4：Bearing diagonal angle is adjusted with lifting device, bearing diagonal and the second built-in fitting of indirect cool tower tower body X posts is welded,
The broadening platform lifting for completing internode unit is installed；
Step 5：Repeat step 2- steps 4, the exhibition of all of internode unit is installed along the lifting in a week of indirect cool tower tower body periphery
Wide Worktable；
Step 6：Position between the corresponding two neighboring X posts of indirect cool tower tower body, using the broadening with lifting internode unit
Platform identical mode lifts the broadening platform of the outer unit of internode, until broadening platform all lifting completions of the outer unit of internode；
Step 7：The broadening platform of the outer unit of the broadening platform of adjacent internode unit and internode is mutually welded and fixed.
The step 1 is concretely comprised the following steps：
The broadening platform of multiple internode units and the broadening platform of the outer unit of multiple internodes are assembled respectively, in internode unit
Be fixed to bearing diagonal on the broadening platform of internode unit using interim hinge by broadening platform lower, and the broadening of internode unit is put down
The broadening platform of platform and the outer unit of internode is transported and prepares lifting to outside indirect cool tower.
It is the step of the broadening platform of assembling internode unit in the step 1：
The spacing of the upper end open according to indirect cool tower tower body X posts determine between the broadening platform radial girders of internode unit away from
From, then the radial girders of the broadening platform of internode unit, ring beam and ring secondary beam are assembled by design requirement, form internode
The broadening platform framework of unit；Some purlins are installed inside the broadening platform framework of internode unit, the exhibition of internode unit is completed
The assembling of Wide Worktable.
The spacing phase of distance and the upper end open of indirect cool tower tower body X posts between the broadening platform radial girders of the internode unit
Deng.
It is the step of the broadening platform of assembling internode outer unit in the step 1：
The spacing of the upper end open according to indirect cool tower tower body X posts is determined between the broadening platform radial girders of the outer unit of internode
Distance, is then assembled the radial girders of the broadening platform of the outer unit of internode, ring beam and ring secondary beam by design requirement, is formed
The broadening platform framework of the outer unit of internode；Some purlins are installed inside the broadening platform framework of the outer unit of internode, internode is completed
The assembling of the broadening platform of outer unit.
The spacing of the upper end open of distance and indirect cool tower tower body X posts between the broadening platform radial girders of the outer unit of the internode
It is equal.
The step 2 is concretely comprised the following steps：
The position of corresponding indirect cool tower tower body X posts, internode unit is first lifted with 70t crawler cranes on the outside of indirect cool tower tower body
Broadening platform, hangs one end of lifting device between the broadening platform and bearing diagonal of internode unit, lifting device it is another
End tangles the hanging lower end of bearing diagonal, stabilization bearing diagonal；The broadening platform lower in internode unit does not hang bearing diagonal simultaneously
One side mounting soft cat ladder is used when being welded for bearing diagonal.
The step of broadening platform gradient of internode unit is adjusted in the step 3：
Spirit level is placed on the side of the broadening platform of internode unit, the exhibition of internode unit is adjusted using 70t crawler cranes
The gradient of Wide Worktable, absolute altitude are consistent with installation requirement, then by the broadening platform of internode unit near the side of indirect cool tower tower body
Welded with the first built-in fitting of indirect cool tower tower body X posts.
The step 4 is concretely comprised the following steps：
Workmen stands at the soft cat ladder position of the broadening platform of internode unit, coordinates spirit level to adjust with lifting device oblique
Support angle is consistent with installation requirement angle, then welds bearing diagonal and the second built-in fitting of indirect cool tower tower body X posts, and welding is completed
After extract lifting device.
Beneficial effects of the present invention are：
1st, ground combination of the present invention is easy to operate, easy to connect, and convenient adjustment, danger coefficient is small, more preferably ensures safety.
2nd, hoisting cost of the present invention is low, artificial to arrange few, improves economic benefit.
3rd, fixed by the bearing diagonal at two in the present invention, bearing diagonal is had been affixed on broadening platform, angle and installation position
Put the same, it is therefore prevented that rocking for bearing diagonal, reduce the difficulty of angle adjustment, reduce work high above the ground danger, saved and hung
Ride class cost.
Brief description of the drawings
Fig. 1 is the top view of broadening platform and indirect cool tower tower body X posts after the completion of present invention lifting；
In figure, 1 is the broadening platform of internode unit, and 2 is the broadening platform of the outer unit of internode.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, indirect air cooling system broadening platform combination lifting installation method of the invention, comprises the following steps：
Preparation before lifting：The broadening platform 1 of the multiple internode units of assembling and the broadening platform of the outer unit of multiple internodes
2, bearing diagonal is fixed in the bottom of broadening platform 1 of internode unit, the lower end of bearing diagonal is hanging；
The position of corresponding indirect cool tower tower body X posts, starts to lift the broadening platform 1 of internode unit, and in internode unit
Suspension hoisting device between broadening platform 1 and bearing diagonal, lifting device tangles the hanging lower end of bearing diagonal；
The broadening platform 1 of internode unit is lifted to installed height mark, will after the gradient of broadening platform 1 of adjustment internode unit
The broadening platform 1 of internode unit is welded with the first built-in fitting of indirect cool tower tower body X posts；
Bearing diagonal angle is adjusted with lifting device, bearing diagonal and the second built-in fitting of indirect cool tower tower body X posts are welded, complete section
Between unit broadening platform 1 lifting install；
Repeat the above steps, the broadening platform 1 of all of internode unit is installed along the lifting in a week of indirect cool tower tower body periphery；
Position between the corresponding two neighboring X posts of indirect cool tower tower body, using the broadening platform phase with lifting internode unit
Same mode lifts the broadening platform of the outer unit of internode, until all lifting completions of broadening platform 2 of the outer unit of internode；
The broadening platform 2 of the outer unit of the broadening platform 1 of adjacent internode unit and internode is mutually welded and fixed.
Assemble internode unit broadening platform 1 the step of be：
The spacing of the upper end open according to indirect cool tower tower body X posts determine between the broadening platform radial girders of internode unit away from
From distance is equal with the spacing of the upper end open of indirect cool tower tower body X posts between the broadening platform radial girders of internode unit.Then will
The radial girders of the broadening platform of internode unit, ring beam and ring secondary beam are assembled by design requirement, form the exhibition of internode unit
Wide Worktable framework；Some purlins are installed inside the broadening platform framework of internode unit, the broadening platform of internode unit is completed
Assembling.
The assembling process of the broadening platform 2 of the outer unit of internode is identical with the assembling process of the broadening platform of internode unit.
Detailed process is installed in the lifting of indirect air cooling system broadening platform combination：
The broadening platform of the outer unit of the broadening platform of internode unit and internode is respectively combined during assembling integral（Internode list
The broadening platform of unit corresponds to the position of indirect cool tower tower body X posts, and the broadening platform of the outer unit of internode corresponds to indirect cool tower tower body X posts
Between position）, bearing diagonal is fixed to the broadening platform of internode unit away from tower body side using interim hinge in broadening platform
On, the lifting work that starts broadening platform is transported to outside indirect cool tower using float.
70t crawler cranes are used in lifting, the broadening platform 1 of internode unit are first lifted, in the broadening platform 1 and tower body of internode unit
Weld side two ends hang two 2t chain blocks, while the chain block other end tangles bearing diagonal lower end, adjust bearing diagonal angle
It is consistent with setting angle, while hang when two sets of soft cat ladders are welded for bearing diagonal using；Crane acts the broadening for rising to internode unit
It is consistent with installation requirement using the broadening platform gradient of spirit level adjustment internode unit, absolute altitude after the installed height mark of platform 1, prevent
There is deviation in cooling triangle lifting absolute altitude, then by the broadening platform inner side of internode unit and the welding of tower body X posts built-in fitting.
Bearing diagonal angle is adjusted with 2 2t chain blocks, qualified rear and tower body X post sluggings are extractd after the completion of welding
Suspender.The broadening platform 2 of the outer unit of internode is lifted with same method, until whole broadening platform is all lifted and completed.By internode
After the lifting of broadening platform 2 of outer unit is completed, by the broadening platform of the outer unit of the broadening platform 1 and internode of adjacent internode unit
2 are mutually welded and fixed, and now, whole broadening platform is around peripheral one week installed in indirect cool tower tower body.
Meanwhile, the present invention reaffirmed that bearing diagonal is correctly firmly installed before broadening platform hangs, and did not fell off.In exhibition
After Wide Worktable and bearing diagonal welding are finished, interim hanging apparatus need to be removed.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (9)
1. a kind of indirect air cooling system broadening platform combination lifts installation method, it is characterized in that, comprise the following steps：
Step 1：Preparation before lifting：The broadening platform of the multiple internode units of assembling and the broadening of the outer unit of multiple internodes are put down
Platform, bearing diagonal is fixed in the broadening platform lower of internode unit, and the lower end of bearing diagonal is hanging；
Step 2：The position of corresponding indirect cool tower tower body X posts, starts to lift the broadening platform of internode unit, and in internode unit
Suspension hoisting device between broadening platform and bearing diagonal, lifting device tangles the hanging lower end of bearing diagonal；
Step 3：The broadening platform of internode unit is lifted to installed height mark, will after the broadening platform gradient of adjustment internode unit
The broadening platform of internode unit is welded with the first built-in fitting of indirect cool tower tower body X posts；
Step 4：Bearing diagonal angle is adjusted with lifting device, bearing diagonal and the second built-in fitting of indirect cool tower tower body X posts are welded, completed
The broadening platform lifting of internode unit is installed；
Step 5：Repeat step 2- steps 4, the broadening for installing all of internode unit along the lifting in a week of indirect cool tower tower body periphery is put down
Platform；
Step 6：Position between the corresponding two neighboring X posts of indirect cool tower tower body, using the broadening platform with lifting internode unit
Identical mode lifts the broadening platform of the outer unit of internode, until broadening platform all lifting completions of the outer unit of internode；
Step 7：The broadening platform of the outer unit of the broadening platform of adjacent internode unit and internode is mutually welded and fixed.
2. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
1 concretely comprises the following steps：
The broadening platform of multiple internode units and the broadening platform of the outer unit of multiple internodes are assembled respectively, in the broadening of internode unit
Be fixed to bearing diagonal on the broadening platform of internode unit using interim hinge by platform lower, by the broadening platform of internode unit and
The broadening platform of the outer unit of internode is transported and prepares lifting to outside indirect cool tower.
3. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
It is the step of the broadening platform of assembling internode unit in 1：
The spacing of the upper end open according to indirect cool tower tower body X posts determines the distance between broadening platform radial girders of internode unit,
Then the radial girders of the broadening platform of internode unit, ring beam and ring secondary beam are assembled by design requirement, is formed internode list
The broadening platform framework of unit；Some purlins are installed inside the broadening platform framework of internode unit, the broadening of internode unit is completed
The assembling of platform.
4. indirect air cooling system broadening platform combination as claimed in claim 3 lifts installation method, it is characterized in that, the internode
Distance is equal with the spacing of the upper end open of indirect cool tower tower body X posts between the broadening platform radial girders of unit.
5. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
It is the step of the broadening platform of assembling internode outer unit in 1：
The spacing of the upper end open according to indirect cool tower tower body X posts determine between the broadening platform radial girders of the outer unit of internode away from
From, then the radial girders of the broadening platform of the outer unit of internode, ring beam and ring secondary beam are assembled by design requirement, form section
Between outer unit broadening platform framework；Some purlins are installed inside the broadening platform framework of the outer unit of internode, are completed outside internode
The assembling of the broadening platform of unit.
6. indirect air cooling system broadening platform combination as claimed in claim 5 lifts installation method, it is characterized in that, the internode
Distance is equal with the spacing of the upper end open of indirect cool tower tower body X posts between the broadening platform radial girders of outer unit.
7. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
2 concretely comprise the following steps：
The position of corresponding indirect cool tower tower body X posts, the broadening of internode unit is first lifted with 70t crawler cranes on the outside of indirect cool tower tower body
Platform, hangs one end of lifting device between the broadening platform and bearing diagonal of internode unit, and the other end of lifting device is hung
Firmly the hanging lower end of bearing diagonal, stablizes bearing diagonal；The broadening platform lower in internode unit does not hang the side of bearing diagonal simultaneously
Hang when soft cat ladder is welded for bearing diagonal and use.
8. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
The step of broadening platform gradient of internode unit is adjusted in 3：
Spirit level is placed on the side of the broadening platform of internode unit, is put down using the broadening of 70t crawler cranes adjustment internode unit
The gradient of platform, absolute altitude are consistent with installation requirement, then by the broadening platform of internode unit near the side of indirect cool tower tower body and
The first built-in fitting of cold tower tower body X posts is welded.
9. indirect air cooling system broadening platform combination as claimed in claim 1 lifts installation method, it is characterized in that, the step
4 concretely comprise the following steps：
Workmen stands at the soft cat ladder position of the broadening platform of internode unit, coordinates spirit level to adjust bearing diagonal with lifting device
Angle is consistent with installation requirement angle, then welds bearing diagonal and the second built-in fitting of indirect cool tower tower body X posts, is plucked after the completion of welding
Except lifting device.
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| CN201510552349.0A CN105239804B (en) | 2015-09-01 | 2015-09-01 | Assembly and lift-erecting method of indirect air-cooling system stretching platforms |
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| CN105239804B true CN105239804B (en) | 2017-05-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107882339B (en) * | 2017-11-07 | 2019-12-31 | 中国化学工程第三建设有限公司 | Construction method of large all-steel structure type indirect cooling tower |
| CN108131026A (en) * | 2017-12-25 | 2018-06-08 | 中国化学工程第三建设有限公司 | A kind of installation method for the platform high-altitude floor that is widened |
| CN108518008B (en) * | 2018-03-23 | 2020-01-31 | 中建钢构有限公司 | Rigid roof structure on flexible inhaul cable structure and mounting method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008202289A (en) * | 2007-02-20 | 2008-09-04 | Kajima Corp | Construction method of tower structure |
| CN201850761U (en) * | 2010-11-19 | 2011-06-01 | 东北电业管理局烟塔工程公司 | Attached supporting truss of ring girder of cooling tower |
| CN202611291U (en) * | 2012-04-27 | 2012-12-19 | 上海电气斯必克工程技术有限公司 | Spread platform sealing structure of indirect air-cooling system |
| CN203487820U (en) * | 2013-09-16 | 2014-03-19 | 中化工程沧州冷却技术有限公司 | Steel member anti-corrosion cooling tower |
| JP2014129697A (en) * | 2012-12-28 | 2014-07-10 | Shimizu Corp | Lifting device, lifting method, and demolition method for building |
| CN203924695U (en) * | 2014-06-23 | 2014-11-05 | 山东电力建设第一工程公司 | A kind of indirect cool tower mould-lifting device |
-
2015
- 2015-09-01 CN CN201510552349.0A patent/CN105239804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008202289A (en) * | 2007-02-20 | 2008-09-04 | Kajima Corp | Construction method of tower structure |
| CN201850761U (en) * | 2010-11-19 | 2011-06-01 | 东北电业管理局烟塔工程公司 | Attached supporting truss of ring girder of cooling tower |
| CN202611291U (en) * | 2012-04-27 | 2012-12-19 | 上海电气斯必克工程技术有限公司 | Spread platform sealing structure of indirect air-cooling system |
| JP2014129697A (en) * | 2012-12-28 | 2014-07-10 | Shimizu Corp | Lifting device, lifting method, and demolition method for building |
| CN203487820U (en) * | 2013-09-16 | 2014-03-19 | 中化工程沧州冷却技术有限公司 | Steel member anti-corrosion cooling tower |
| CN203924695U (en) * | 2014-06-23 | 2014-11-05 | 山东电力建设第一工程公司 | A kind of indirect cool tower mould-lifting device |
Non-Patent Citations (4)
| Title |
|---|
| 吊模法施工及吊模钢架设计;黄焕来;《广西水利水电》;20030915(第03期);48-50 * |
| 国内首台220MW机组空冷平台安装工艺;张晋芳;《山西建筑》;20070130;第33卷(第02期);172-173 * |
| 大同二电厂三期空冷平台钢结构吊装方案探讨;赵玉青;《山西建筑》;20070131;第37卷(第31期);93-95 * |
| 钢结构安装在空冷平台中的应用;尚建新;《太原科技》;20071210(第12期);81-82 * |
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